阅读说明：本技术 一种尾水调压井闸门及启闭设备的布置与安装方法及结构 (Arrangement and installation method and structure of tail water surge shaft gate and opening and closing equipment ) 是由 王兴恩 申显柱 于 2021-05-14 设计创作，主要内容包括：本发明公开了一种尾水调压井闸门及启闭设备的布置与安装方法及结构,该方法是将尾水调压室设计为2个及以上的独立尾水调压井,相邻的独立尾水调压井之间设置岩埂隔开,岩埂顶部高程略高于尾水调压井最高涌浪水位；在每个独立尾水调压井上均设置至少1扇尾水调压井闸门,且所有尾水调压井闸门的门槽中心线均布置在同一直线上,独立尾水调压井的排架中部顺水流向取消连接梁,启闭设备采用抓梁与闸门相连,且抓梁下吊头中心至岩埂顶部高程高度大于闸门单节门叶最大高度；闸门采用在检修平台上设置的梁柱组合式锁定装置或储门槽存放固定。本发明实现了采用移动式启闭设备操作尾水调压井闸门无需通过岩埂即能满足电站的检修要求。(The invention discloses an arrangement and installation method and a structure of a tail water surge shaft gate and opening and closing equipment, wherein the method comprises the steps of designing a tail water surge chamber into 2 or more independent tail water surge shafts, arranging rock ridges between the adjacent independent tail water surge shafts for separation, and enabling the elevation of the top of each rock ridge to be slightly higher than the highest surge water level of the tail water surge shaft; at least 1 tail water surge shaft gate is arranged on each independent tail water surge shaft, the central lines of gate slots of all tail water surge shaft gates are uniformly arranged on the same straight line, the middle part of a bent frame of each independent tail water surge shaft is provided with a connecting beam along the water flow direction, an opening and closing device is connected with the gates by adopting a grabbing beam, and the height from the center of a lower hoisting head of the grabbing beam to the top of a rock ridge is greater than the maximum height of a single section of gate blade of the gate; the gate is stored and fixed by adopting a beam-column combined locking device or a gate storage groove arranged on the maintenance platform. The invention realizes that the movable opening and closing equipment is adopted to operate the tail water surge shaft gate, and the maintenance requirement of the power station can be met without passing through a rock ridge.)

1. The utility model provides a tail water surge shaft gate and headstock gear arrange and installation method which characterized in that: the method is characterized in that a tail water surge chamber (1) is designed into 2 or more independent tail water surge shaft (2), and rock ridges (3) are arranged between adjacent independent tail water surge shafts (2) for separation; at least 1 tail water surge shaft gate (4) is arranged on each independent tail water surge shaft (2), the central lines of gate slots of all the tail water surge shaft gates (4) are uniformly arranged on the same straight line, and a connecting beam (7) is cancelled in the middle of a bent frame (6) of each independent tail water surge shaft (2) along the water flow direction, so that the requirements that the tail water surge shaft gates (4) are operated by one movable opening and closing device, each independent surge shaft is used for gate water blocking, and the gates are not interfered by the connecting beam (7) when moving perpendicular to the water flow direction are met; when the tail water surge shaft gate (4) is operated by the trolley (8), the height H of the trolley track bent frame platform (9) from the top of the rock ridge (3)₁Greater than the upper limit size h of the trolley hoisting head (10)_t+ distance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam (11)_y+ installation single section door leaf (12) maximum height h_maxThe use requirement that each section of gate leaf (12) horizontally passes through the top of the rock ridge (3) and is lifted to the top of the corresponding gate slot to be locked and installed in an aligned mode is met; the gate and the trolley (8) are transported to an installation platform (14) through a traffic hole (13), and the bottom of the traffic hole (13) is set to have the same elevation as the top of the rock ridge (3) or the same elevation as the trolley track bent platform (9); when the bottom of the traffic hole (13) is provided with elevation and rocksThe heights of the platform (15) at the top of the ridge are the same, the mounting platform (14) is arranged at the end close to the traffic hole (13) and has the same height as the bottom of the traffic hole (13), and the length L of the trolley track bent platform (9) extending to the mounting platform (14)₁Not less than the maximum width B of the door leaf (12)_m+ trolley (8) buffer distance B_h+ stop (16) length B_dThe length requirement of the lifting door leaf (12) of the trolley (8) is met; the length L of the mounting platform (14) is more than or equal to the length L of the trolley track bent frame platform (9) extending to the mounting platform (14)₁+ minimum length L required for operation of temporary crane (17) mounting trolley (8)_minThereby meeting the dual-purpose requirement of installing the gate and the trolley (8); when the elevation of the bottom of the traffic hole (13) is the same as that of the trolley track bent frame platform (9), the mounting platform (14) is arranged at the end close to the traffic hole (13) and has the same elevation as that of the bottom of the traffic hole (13), after the trolley (8) is mounted through the temporary crane (17), the door leaf (12) is firstly placed on the locking beam (28) at the top of the gate slot (5) close to the mounting platform (14) through the temporary crane (17), and then is transferred to the top of each gate slot (5) through the trolley (8) to complete mounting; when the tail water surge shaft gate (4) is operated by a portal crane (29), the elevation of a portal crane track platform (30) and the bottom of a traffic hole (13) are set to be the same as the elevation of a rock ridge top platform (15), and the upper lift H of the portal crane track (29)_gsThe distance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam (11) is more than or equal to_y+ installation single section door leaf (12) maximum height h_maxThe use requirement that each section of gate leaf (12) horizontally passes through the top of the rock ridge (3) and is lifted to the top of the corresponding gate slot to be locked and installed in an aligned mode is met; the gantry crane track platform (30) is provided with an installation platform (14) close to the traffic hole (13) for installing a gantry crane (29), and the gantry crane (29) is installed through a temporary crane (17); two sets of lifting lug plates (19) are symmetrically arranged at the top of each section of gate leaf (12) of the tail water surge shaft gate (4), so that the trolley (8), the gantry crane (29) or the temporary crane (17) can be lifted conveniently; when the power station normally operates, the tail water surge shaft gate (4) is fixed by arranging a beam-column combined locking device (21) on an overhaul platform (20) between adjacent gate slots (5) or arranging a gate storage slot (31) on a platform between the adjacent gate slots (5) for storage; the beam-column combined locking device (21) comprises a fixed locking beam (23) corresponding to the side column bottom plate of the door leaf (12) and a steel column (2) corresponding to the lifting lug plate (19) of the lower door leaf (12) and provided with a connecting device (24)5) When the tail water surge shaft gate (4) is in a locked state, a side column bottom plate of a lower door leaf (12) is supported on a fixed locking beam (23), a connecting device (24) of a steel column (25) consists of a connecting plate (26) and a pin shaft (27), a lower door leaf lifting lug plate (19) and the connecting plate (26) of the steel column (25) are fixed through the pin shaft (27), and the tail water surge shaft gate (4) is fixed through two sides of the bottom and 4 sides of the front side and is firmly locked; when the tail water surge shaft gate (4) is arranged on a platform between adjacent gate slots (5) and is stored and fixed by a gate storage slot (31) and operated by a trolley (8), the height H of the gate storage slot (31) is_cHeight H (the upper limit size H of the trolley hoisting head (10)) from the trolley track bent frame platform (9) to the maintenance platform (20)_t+ distance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam (11)_y+ maximum height h from center of upper lifting lug (32) of gate to bottom edge (33) of bottom water seal_{Total max}) The requirement that the trolley (8) integrally hoists the gate out of the gate storage groove (31) is met; when the tail water surge shaft gate (4) is arranged on a platform between adjacent gate slots (5) and is stored and fixed by a gate storage slot (31) and operated by a portal crane (29), the height H of the gate storage slot (31) is_cLift H on rail of gantry crane (29) is less than or equal to_gs+ height H from the rail surface of the gantry crane (29) to the maintenance platform (20)₂- (hydraulic grab beam (11) upper and lower hanging head center distance h_y+ maximum height h from center of upper lifting lug (32) of gate to bottom edge (33) of bottom water seal_{Total max}) The requirement that the gate machine (29) integrally hoists the gate out of the gate storage groove (31) is met; when each independent tail water surge shaft (2) is provided with 2 or more tail water surge shaft gates (4), the gate storage groove (31) consists of a side groove (35) and an H-shaped middle groove (36).

2. The utility model provides a tail water surge-killing gate (4) and starting and stopping equipment arrange and mounting structure which characterized in that: the tail water pressure regulating chamber (1) is composed of 2 or more independent tail water pressure regulating wells (2), and rock ridges (3) are arranged between adjacent independent tail water pressure regulating wells (2) for separation; at least 1 tail water surge shaft gate (4) is arranged on each independent tail water surge shaft (2), the central lines of gate slots of all the tail water surge shaft gates (4) are uniformly arranged on the same straight line, and the middle part of a bent frame (6) of each independent tail water surge shaft (2) is in water flow direction to cancel a connecting beam (7); the tail water surge shaft gate (4) is operated by a trolley (8) or a gantry crane (29); and the tail water surge shaft gate (4) and the trolley (8) are transported to the mounting platform (14) through the traffic hole (13).

3. The arrangement and installation structure of the tail water surge shaft gate (4) and the opening and closing device according to claim 2, characterized in that: the rail platform of the gantry crane (29) is provided with a mounting platform (14) close to the traffic hole (13) for mounting the gantry crane (29), and the gantry crane (29) is mounted through a temporary crane (17); two sets of lifting lug plates (19) are symmetrically arranged at the top of each section of gate leaf (12) of the tail water surge shaft gate (4).

4. The arrangement and installation structure of the tail water surge shaft gate (4) and the opening and closing device according to claim 2, characterized in that: when the tail water surge shaft gate (4) operates normally in a power station, a beam-column combined locking device (21) is arranged on an overhaul platform (20) between adjacent gate slots (5) for fixation or a gate storage slot (31) is arranged on a platform between the adjacent gate slots (5) for storage and fixation.

5. The arrangement and installation structure of the tail water surge shaft gate (4) and the opening and closing device according to claim 2, characterized in that: the beam-column combined locking device (21) is composed of a fixed locking beam (23) corresponding to the position of the side column bottom plate of the door leaf (12) and a steel column (25) corresponding to the position of the lower door leaf lifting lug plate (19) and provided with a connecting device (24).

6. The arrangement and installation structure of the tail water surge shaft gate (4) and the opening and closing device according to claim 2, characterized in that: the connecting device (24) of the steel column (25) is composed of a connecting plate (26) and a pin shaft (27), and the lower door leaf lifting lug plate (19) and the connecting plate (26) of the steel column (25) are fixed through the pin shaft (27).

7. The arrangement and installation structure of the tail water surge shaft gate (4) and the opening and closing device according to claim 2, characterized in that: when the tail water surge shaft gate (4) is arranged on a platform between adjacent gate slots (5) and is stored and fixed by a gate slot (31) and operated by a trolley (8), the height of the gate slot (31) is increasedH_cHeight H- (the upper limit size H of a trolley (8) hanging head (10)) from a trolley (8) track bent frame (6) platform to an overhaul platform (20)_t+ distance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam (11)_y+ maximum height h from center of upper lifting lug (32) of gate to bottom edge (33) of bottom water seal_{Total max})。

8. The arrangement and installation structure of the tail water surge shaft gate (4) and the opening and closing device according to claim 2, characterized in that: when the tail water surge shaft gate (4) is arranged on a platform between adjacent gate slots (5) and is stored and fixed by a gate storage slot (31) and operated by a portal crane (29), the height H of the gate storage slot (31) is equal to that of the gate storage slot_cLift H on rail of gantry crane (29) is less than or equal to_gs+ height H from gantry crane track surface (34) to maintenance platform (20)₂- (hydraulic grab beam (11) upper and lower hanging head center distance h_y+ maximum height h from center of upper lifting lug (32) of gate to bottom edge (33) of bottom water seal_{Total max})。

9. The arrangement and installation structure of the tail water surge shaft gate (4) and the opening and closing device according to claim 2, characterized in that: when each independent tail water surge shaft (2) is provided with 2 or more tail water surge shaft gates (4), the gate storage groove (31) consists of a side groove (35) and an H-shaped middle groove (36).

Technical Field

The invention relates to a method and a structure for arranging and installing a tail water surge shaft gate and opening and closing equipment, and belongs to the technical field of metal structures of hydropower engineering.

Background

For the tail water surge shaft provided with a plurality of units, in order to reduce the influence of water hammer action caused by load shedding of a single unit on the power generation of other units, the tail water surge shaft generally exceeding two units is usually provided with rock ridges for separation, the height of the rock ridges is higher than the highest surge water level, otherwise, the surge water overflows out of the surge shaft, and the facilities around the tail water surge shaft are damaged; for the tail water surge shaft with the central line of the gate slot in the same straight line, if a 'one-door one-machine' arrangement mode that each tail water surge shaft gate is operated by a fixed winch is adopted, the problem of overlarge investment of a metal structure exists; if the arrangement mode that a plurality of tail water surge shaft gate slots share the tail water surge shaft gate is adopted, the tail water surge shaft gate needs to be operated by a movable opening and closing device, and the bottom of the tail water surge shaft gate needs to be higher than the top of a rock ridge so that the gate can be lifted into all gate slots through the movable opening and closing device, so that the height of a tail water surge shaft cavern is large, and the investment is increased; in addition, the traditional tail water surge shaft gate is directly locked on a maintenance platform at the top of a gate slot, and is easy to overturn to cause damage under the repeated fluctuation impact of water inrush because the height of the platform is much lower than the highest surge water level; in addition, the tradition of tail water surge shaft adopts the mode that sets up the rock anchor lifting hook and through interim lifting by crane equipment installation gate and headstock gear, to the great gate of dead weight and headstock gear, the load that the rock anchor lifting hook bore is limited, does not reach the requirement usually, so, current technique still is perfect inadequately, treats further improvement.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a method and a structure for arranging and installing a tail water surge shaft gate and an opening and closing device.

The invention is realized by the following steps:

firstly, designing a tail water surge chamber into 2 or more independent tail water surge shaft, and arranging rock ridges between adjacent independent tail water surge shafts for separation; all set up 1 at least tail water pressure regulating well gate on every independent tail water pressure regulating well, and the gate slot central line equipartition of all tail water pressure regulating well gates is put on same straight line, and the framed bent middle part of independent tail water pressure regulating well is along the water flow direction and cancels the tie-beam, satisfies tail water pressure regulating well gate and adopts a portable headstock gear operation and every independent pressure regulating well all has the gate manger plate to use and gate perpendicular to rivers do not move when moving toIs disturbed by the connecting beam. When the tail water pressure regulating well gate is operated by the trolley, the height H of the trolley track bent frame platform from the top of the rock ridge₁Greater than the upper limit size h of the trolley hoisting head_t+ distance h between upper and lower hanging head centers of hydraulic grabbing beam_y+ maximum height h of single-section door leaf during installation_maxAnd the use requirement that each section of door leaf horizontally passes through the top of the rock ridge and is lifted to the top of the corresponding door slot to be locked and installed in an alignment manner is met. The gate and the trolley are transported to the installation platform through the traffic tunnel, and the elevation arranged at the bottom of the traffic tunnel can be the same as the elevation at the top of the rock ridge or the elevation of the trolley track bent platform. When the elevation of the bottom of the traffic hole is the same as the elevation of the platform at the top of the rock ridge, the installation platform is arranged at the end close to the traffic hole and is the same as the elevation of the bottom of the traffic hole, and the length L of the trolley track bent platform extending to the installation platform₁Not less than the maximum width B of the door leaf_m+ trolley buffer distance B_h+ stop length B_dThe length requirement of the trolley hoisting door leaf is met; the length L of the mounting platform is greater than or equal to the length L of the trolley track bent frame platform extending to the mounting platform₁+ minimum length L required for operation of temporary crane installation trolley_minThereby meeting the dual-purpose requirement of installing the gate and the trolley. When the elevation set at the bottom of the traffic hole is the same as the elevation of the trolley track bent frame platform, the installation platform is arranged at the end close to the traffic hole and is the same as the elevation of the bottom of the traffic hole, after the trolley is installed through the temporary crane, the door leaf is firstly placed on the locking beam at the top of the gate slot close to the installation platform through the temporary crane, and then the trolley is transported to the top of each gate slot to complete installation. When the tail water pressure regulating well gate is operated by a portal crane, the elevation of the portal crane track platform and the elevation of the bottom of the traffic hole are the same as the elevation of the rock ridge top platform, and the lift H on the portal crane track_gsThe distance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam is more than or equal to_y+ maximum height h of single-section door leaf during installation_maxThe use requirement that each section of the door leaf horizontally passes through the top of the rock ridge and is lifted to the top of the corresponding door slot to be locked and installed in an aligned mode is met; the gantry crane track platform is provided with a mounting platform close to the traffic hole end for mounting a gantry crane, and the gantry crane is mounted through a temporary crane. Two sets of lifting lug plates are symmetrically arranged at the top of each section of gate leaf of the tail water surge shaft gate, so that the tail water surge shaft gate is convenient to lift by a trolley, a gate machine or a temporary crane. In the electricityWhen the station normally operates, the tail water surge shaft gate adopts the maintenance platform between adjacent gate slots to set up beam-column combined locking device to be fixed or set up on the platform between adjacent gate slots to store up the gate slot and deposit fixedly to can effectively reduce the influence that the tail water surge shaft gate is thrown load production by the unit and gushes water, reduce the risk that the tail water surge shaft gate takes place to topple. The beam-column combined locking device comprises a fixed locking beam corresponding to the bottom plate of the door leaf side column and a steel column corresponding to the lifting lug plate of the lower door leaf and provided with a connecting device, when the tail water surge shaft gate is in a locking state, the bottom plate of the lower door leaf side column is supported on the fixed locking beam, the connecting device of the steel column comprises a connecting plate and a pin shaft, the lifting lug plate of the lower door leaf and the connecting plate of the steel column are fixed through the pin shaft, and the tail water surge shaft gate is fixed through the two sides of the bottom and the 4 sides of the front, so that the tail water surge shaft gate is firmly locked. When the tail water surge shaft gate is characterized in that the gate storage grooves are arranged on the platform between the adjacent gate grooves for storage and fixation and the operation is carried out by adopting a trolley, the height H of the gate storage grooves_cHeight H- (trolley hoisting head upper limit size H) from trolley track bent frame platform to maintenance platform_t+ distance h between upper and lower hanging head centers of hydraulic grabbing beam_y+ maximum height h from center of upper lifting lug of gate to bottom edge of bottom water seal_{Total max}) The requirement that the gate is integrally hoisted out of the gate storage slot by the trolley is met; when the tail water surge shaft gate is characterized in that the gate storage grooves are arranged on the platform between the adjacent gate grooves for storage and fixation and the gate machine is adopted for operation, the height H of the gate storage grooves_cEqual to or less than the upper lift H of the gantry crane rail_gs+ height H from gantry crane track surface to maintenance platform₂- (distance hy between upper and lower hanging head centers of hydraulic grabbing beam + maximum height h from center of lifting lug on gate to bottom edge of bottom water seal_{Total max}) The requirement that the gate machine integrally hoists the gate out of the gate storage groove is met; when every independent tail water surge-killing well sets up 2 tail water surge-killing well gates more than and, store up the gate slot and constitute by side slot and H type mesolot, set up the storage gate slot in independent side slot than the tradition, reducible perpendicular to rivers to the width that stores up the gate slot to maintenance platform perpendicular to rivers are to the width that reduces between the tail water surge-killing well gate slot, save the investment then.

By adopting the method, at least 1 tail water surge shaft gate is arranged on each independent tail water surge shaft, the central lines of gate slots of all tail water surge shaft gates are uniformly arranged on the same straight line, the connecting beam is cancelled in the middle of the bent frame of the independent tail water surge shaft along the water flow direction, the tail water surge shaft gate can be operated by adopting a movable opening and closing device without rock ridges to meet the maintenance requirements of a power station, and the installation, maintenance and storage of the gate and the opening and closing device can be realized at a smaller tail water surge shaft space height by adopting a method of component division, sectional lifting and assembly through the combined operation of a temporary crane and a trolley or a portal crane, and the lifting requirements of the gate and the opening and closing device with larger opening and closing capacity than that of the temporary lifting device adopted by a rock anchor lifting hook can be met, and the investment is saved; in addition, the tail water surge shaft gate adopts a method that a beam-column combined locking device is arranged on an overhaul platform between adjacent gate slots for fixation or a gate storage slot is arranged on a platform between the adjacent gate slots for storage and fixation, so that the risk that the gate is easily overturned under the repeated fluctuation impact of water burst generated by unit load shedding on the right upper part of the gate slot in the prior art is avoided, and the gate is firmly locked.

Based on the method, the arrangement and installation structure of the tail water surge shaft gate and the opening and closing equipment comprises a tail water surge chamber, wherein the tail water surge chamber is composed of 2 or more independent tail water surge shafts, and rock ridges are arranged between adjacent independent tail water surge shafts for separation. At least 1 tail water surge shaft gate is arranged on each independent tail water surge shaft, the central lines of gate slots of all tail water surge shaft gates are uniformly arranged on the same straight line, and the middle part of a bent frame of each independent tail water surge shaft is in the direction of water flow to cancel a connecting beam; the tail water surge shaft gate is operated by a trolley or a portal crane.

As a preferred scheme, when the tail water pressure regulating well gate is operated by a trolley, the height H of the trolley track bent frame platform from the top of the rock ridge₁Greater than the upper limit size h of the trolley hoisting head_t+ distance h between upper and lower hanging head centers of hydraulic grabbing beam_y+ maximum height h of single-section door leaf during installation_max。

As a preferred scheme, the tail water surge shaft gate and the trolley are transported to the installation platform through a traffic hole; the bottom of the traffic hole is provided withThe elevation can be the same as the elevation at the top of the rock ridge or the elevation of the trolley track bent platform; the elevation of the bottom of the traffic hole is the same as that of the platform at the top of the rock ridge, the installation platform is arranged at the end close to the traffic hole and is the same as that of the bottom of the traffic hole, and the length L of the trolley track bent platform extending to the installation platform₁Not less than the maximum width B of the door leaf_m+ trolley buffer distance B_h+ stop length B_dThe length L of the mounting platform is larger than or equal to the length L of the trolley track bent frame platform extending to the mounting platform₁+ minimum length L required for operation of temporary crane installation trolley_min(ii) a The elevation of the bottom of the traffic hole is the same as that of the trolley track bent frame platform, the mounting platform is arranged at the end close to the traffic hole and has the same elevation as that of the bottom of the traffic hole, and after the trolley is mounted through the temporary crane, the door leaf is firstly placed on the locking beam at the top of the gate slot close to the mounting platform through the temporary crane and then transferred to the top of each gate slot through the trolley to complete mounting; when the tail water pressure regulating well gate is operated by a portal crane, the elevation of the portal crane track platform and the elevation of the bottom of the traffic hole are the same as the elevation of the rock ridge top platform, and the lift H on the portal crane track_gsDistance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam_y+ maximum height h of single-section door leaf during installation_max。

As a preferred scheme, the gantry crane track platform is provided with a mounting platform by a traffic hole end for mounting a gantry crane, and the gantry crane is mounted by a temporary crane; two sets of lifting lug plates are symmetrically arranged at the top of each section of gate leaf of the tail water surge shaft gate, so that the tail water surge shaft gate is convenient to lift by a trolley, a gate machine or a temporary crane. When the tail water surge shaft gate operates normally in a power station, the maintenance platform between the adjacent gate slots is provided with the beam-column combined type locking device for fixation or the platform between the adjacent gate slots is provided with the gate storage slot for storage fixation.

As a preferred scheme, the beam-column combined locking device consists of a fixed locking beam corresponding to the bottom plate of the door leaf side column and a steel column corresponding to the lifting lug plate of the lower-section door leaf and provided with a connecting device; preferably, when the tail water surge-shaft gate is in a locked state, the bottom plate of the lower-section gate blade side column is supported by the fixed lock beam. The connecting device of the steel column consists of a connecting plate and a pin shaft, and the lower door leaf lifting lug plate is fixed with the connecting plate of the steel column through the pin shaft.

As a preferred scheme, when the tail water surge shaft gate is provided with the gate storage groove on the platform between the adjacent gate grooves for storage and fixation and is operated by a trolley, the height H of the gate storage groove_cHeight H- (trolley hoisting head upper limit size H) from trolley track bent frame platform to maintenance platform_t+ distance h between upper and lower hanging head centers of hydraulic grabbing beam_y+ maximum height h from center of upper lifting lug of gate to bottom edge of bottom water seal_{Total max})；

As a preferred scheme, when the tail water surge shaft gate is characterized in that the gate storage grooves are arranged on the platform between the adjacent gate grooves for storage and fixation and the gate machine is adopted for operation, the height H of the gate storage grooves_cEqual to or less than the upper lift H of the gantry crane rail_gs+ height H from gantry crane track surface to maintenance platform₂- (distance h between the centers of the upper and lower heads of the hydraulic gripping beam_y+ maximum height h from center of upper lifting lug of gate to bottom edge of bottom water seal_{Total max})；

As a preferable scheme, when each independent tail water surge shaft is provided with 2 or more tail water surge shaft gates, the gate storage groove consists of a side groove and an H-shaped middle groove.

Compared with the prior art, the invention has the following beneficial effects:

(1) each independent tail water pressure regulating well is provided with at least 1 tail water pressure regulating well gate, the central lines of gate slots of all tail water pressure regulating well gates are uniformly arranged on the same straight line, the middle part of a bent frame of the independent tail water pressure regulating well is provided with a connecting beam along the water flow direction, so that the tail water pressure regulating well gate can be operated by adopting movable opening and closing equipment to meet the maintenance requirement of a power station without a rock ridge, and the installation, maintenance and storage of the gate and the opening and closing equipment at a smaller tail water pressure regulating well space height can be realized by adopting a part-dividing, lifting and assembling method through the combined operation of a temporary crane and a trolley or a portal crane, and the investment is saved;

(2) the tail water surge shaft gate adopts a method that a beam-column combined locking device is arranged on an overhaul platform between adjacent gate slots for fixation or a gate storage slot is arranged on a platform between the adjacent gate slots for storage and fixation, so that the risk that water gushing generated by unit load shedding on the gate slot is easily overturned due to repeated fluctuation from top to bottom in the traditional method is avoided, and the gate is firmly locked;

(3) the opening and closing capacity of the temporary crane and the movable opening and closing equipment is larger than that of the rock anchor lifting hook, so that the lifting requirements of the gate and the opening and closing equipment with larger dead weight of the tail water surge shaft are met, and the investment is saved;

(4) when the tail water pressure regulating well gate is operated by the trolley, the height H of the trolley track bent frame platform from the top of the rock ridge₁Greater than the upper limit size h of the trolley hoisting head_t+ distance h between upper and lower hanging head centers of hydraulic grabbing beam_y+ maximum height h of single-section door leaf during installation_maxThe use requirement that each section of the door leaf horizontally passes through the top of the rock ridge and is lifted to the top of the corresponding door slot to be locked and installed in an aligned mode is met;

(5) the elevation of the bottom of the traffic hole is the same as that of the platform at the top of the rock ridge, the installation platform is arranged at the end close to the traffic hole and is the same as that of the bottom of the traffic hole, and the length L of the trolley track bent platform extending to the installation platform₁Not less than the maximum width B of the door leaf_m+ trolley buffer distance B_h+ stop length B_dThe length requirement of the lifting door leaf of the trolley is met, and the length L of the mounting platform is more than or equal to the length L of the trolley track bent platform extending to the mounting platform₁+ minimum length L required for operation of temporary crane installation trolley_minThe dual-purpose requirement of installing a gate and a trolley is met;

(6) when the tail water pressure regulating well gate is operated by a portal crane, the elevation of the portal crane track platform and the elevation of the bottom of the traffic hole are the same as the elevation of the rock ridge top platform, and the lift H on the portal crane track_gsDistance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam_y+ maximum height h of single-section door leaf during installation_maxThe use requirement that each section of the door leaf horizontally passes through the top of the rock ridge and is lifted to the top of the corresponding door slot to be locked and installed in an aligned mode is met;

(7) when the tail water surge shaft gate is characterized in that the gate storage grooves are arranged on the platform between the adjacent gate grooves for storage and fixation and the operation is carried out by adopting a trolley, the height H of the gate storage grooves_cHeight H- (trolley hoisting head upper limit size H) from trolley track bent frame platform to maintenance platform_t+ distance h between upper and lower hanging head centers of hydraulic grabbing beam_y+ maximum height h from center of upper lifting lug of gate to bottom edge of bottom water seal_{Total max}) The requirement that the gate is integrally hoisted out of the gate storage slot by the trolley is met;

(8) when the tail water surge shaft gate is characterized in that the gate storage grooves are arranged on the platform between the adjacent gate grooves for storage and fixation and the gate machine is adopted for operation, the height H of the gate storage grooves_cEqual to or less than the upper lift H of the gantry crane rail_gs+ height H from gantry crane track surface to maintenance platform₂- (distance h between the centers of the upper and lower heads of the hydraulic gripping beam_y+ maximum height h from center of upper lifting lug of gate to bottom edge of bottom water seal_{Total max}) The requirement that the gate machine integrally hoists the gate out of the gate storage groove is met;

(9) when every independent tail water surge-killing well sets up 2 tail water surge-killing well gates more than and, store up the gate slot and constitute by side slot and H type mesolot, set up the storage gate slot in independent side slot than the tradition, reducible perpendicular to rivers to the width that stores up the gate slot to maintenance platform perpendicular to rivers are to the width that reduces between the tail water surge-killing well gate slot, save the investment then.

Drawings

FIG. 1 is a schematic view of example 1 of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic view of example 2 of the present invention;

FIG. 4 is a cross-sectional view B-B of FIG. 3;

FIG. 5 is a schematic view of example 3 of the present invention;

FIG. 6 is a cross-sectional view C-C of FIG. 5;

FIG. 7 is a schematic structural view (side view of the unit) of a tail water surge shaft gate of the present invention;

FIG. 8 is a schematic structural view (tail water side view) of a tail water surge shaft gate of the present invention;

FIG. 9 is a schematic view showing the locked state of the tail water surge-shaft gate according to embodiments 1, 2 and 3 of the present invention in normal operation of the power station;

FIG. 10 is a cross-sectional view D-D of FIG. 9;

FIG. 11 is a schematic view of example 4 of the present invention;

FIG. 12 is a sectional view taken along line F-F of FIG. 11;

FIG. 13 is a schematic view of example 5 of the present invention;

FIG. 14 is a sectional view taken along line G-G of FIG. 13;

FIG. 15 is a schematic view of example 6 of the present invention;

FIG. 16 is a sectional view taken at H-H in FIG. 15;

FIG. 17 is a schematic view showing the locked state of the tail water surge-shaft gate according to embodiments 4, 5 and 6 of the present invention in normal operation of the power station;

FIG. 18 is a cross-sectional view I-I of FIG. 17;

FIG. 19 is a sectional view taken along line J-J of FIG. 18;

FIG. 20 is a schematic diagram showing the moving state of the gate of the tail water surge tank in embodiments 4 and 5 of the present invention;

FIG. 21 is a schematic view showing the state of the gate of the tail water surge tank according to embodiment 6 of the present invention;

fig. 22 is a schematic view of the raceway surface of the door operator of fig. 21.

The labels in the figures are: 1-tail water surge chamber, 2-independent tail water surge shaft, 3-rock ridge, 4-tail water surge shaft gate, 5-gate slot, 6-bent, 7-connecting beam, 8-trolley, 9-trolley track bent platform, 10-trolley hoisting head, 11-hydraulic grabbing beam, 12-door leaf, 13-communication hole, 14-installation platform, 15-rock ridge top platform, 16-blocking head, 17-temporary crane, 18-door leaf top, 19-lug plate, 20-maintenance platform, 21-beam column combined locking device, 22-door leaf side column bottom plate, 23-fixed locking beam, 24-connecting device, 25-steel column, 26-connecting plate, 27-pin shaft, 28-locking beam, 29-door machine, 30-gantry crane track platform, 31-gate storage groove, 32-gate upper lifting lug, 33-bottom water seal bottom edge, 34-gantry crane track surface, 35-side groove and 36-H type middle groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

as shown in the attached drawings 1, 2 and 7-10, in the embodiment, the tail water surge chamber 1 is composed of 2 independent tail water surge shaft 2, and rock ridges 3 are arranged between adjacent independent tail water surge shaft 2 for separation. Each independent tail water surge shaft 2 is provided with 2 tail water surge shaft gates 4, the central lines of gate slots 5 of all the tail water surge shaft gates 4 are uniformly arranged on the same straight line, and the middle parts of bent frames 6 of the independent tail water surge shafts 4 are in water flow direction to cancel connecting beams 7; the tail water surge shaft gate 4 is operated by a trolley 8; height H of trolley track bent frame platform 9 from rock ridge 3₁Greater than the upper limit size h of the trolley hoisting head 10_t+ distance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam 11_y+ installation single section door leaf 12 maximum height h_max(ii) a The tail water surge shaft gate 4 and the trolley 8 are transported to the installation platform 14 through the traffic hole 13.

The elevation of the bottom of the traffic hole 13 is the same as that of the platform 15 at the top of the rock ridge, the mounting platform 14 is arranged at the end close to the traffic hole 13 and is the same as that of the bottom of the traffic hole 13, and the trolley track bent platform 9 extends to the mounting platform 14 by the length L₁Not less than the maximum width B of the door leaf 12_m+ trolley 8 buffer distance B_h+ stop 16 length B_dThe length L of the mounting platform 14 is more than or equal to the length L of the trolley track bent frame platform 8 extending to the mounting platform 14₁+ minimum length L required for operation of temporary crane 17 mounting trolley 8_min。

Two sets of lifting lug plates 19 are symmetrically arranged on the top 18 of each section of gate leaf of the tail water surge shaft gate 4; when the tail water surge shaft gate 4 operates normally in a power station, a beam-column combined locking device 21 is arranged on an overhaul platform 20 between adjacent gate slots 5 for fixation; the beam-column combined locking device 21 consists of a fixed locking beam 23 corresponding to the position of the door leaf side column bottom plate 22 and a steel column 25 corresponding to the position of the lower section door leaf lifting lug plate 19 and provided with a connecting device 24; when the tail water surge shaft gate 4 is in a locked state, the lower section gate blade side column bottom plate 22 is supported on the fixed locking beam 23; the connecting device 24 of the steel column 25 consists of a connecting plate 26 and a pin 27, and the lower door leaf lifting lug plate 19 and the connecting plate 26 of the steel column 25 are fixed through the pin 27.

Example 2:

as shown in the attached drawings 3, 4 and 7-10, in the embodiment, the tail water surge chamber 1 is composed of 2 independent tail water surge suppression wells 2, and rock ridges 3 are arranged between adjacent independent tail water surge suppression wells 2 for separation. Each independent tail water surge shaft 2 is provided with 2 tail water surge shaft gates 4, the central lines of gate slots 5 of all the tail water surge shaft gates 4 are uniformly arranged on the same straight line, and the middle parts of bent frames 6 of the independent tail water surge shafts 4 are in water flow direction to cancel connecting beams 7; the tail water surge shaft gate 4 is operated by a trolley 8; height H between trolley track bent frame platform 9 and top of rock ridge 3₁Greater than the upper limit size h of the trolley hoisting head 10_t+ distance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam 11_y+ installation single section door leaf 12 maximum height h_max(ii) a The tail water surge shaft gate 4 and the trolley 8 are transported to the installation platform 14 through the traffic hole 13.

The bottom of the traffic hole 13 is provided with an elevation the same as that of the trolley track bent platform 9; the mounting platform 14 is arranged at the end part close to the traffic hole 13 and has the same elevation as the bottom of the traffic hole 13, after the trolley 14 is mounted through the temporary crane 17, the door leaf 12 is firstly placed on the locking beam 28 at the top of the gate slot 5 close to the mounting platform 14 through the temporary crane 17, and then transferred to the top of each gate slot 5 through the trolley 8 to complete mounting; two sets of lifting lug plates 19 are symmetrically arranged on the top 18 of each section of gate leaf of the tail water surge shaft gate 4; when the tail water surge shaft gate 4 operates normally in a power station, a beam-column combined locking device 21 is arranged on an overhaul platform 20 between adjacent gate slots 5 for fixation; the beam-column combined locking device 21 consists of a fixed locking beam 23 corresponding to the position of the door leaf side column bottom plate 22 and a steel column 25 corresponding to the position of the lower section door leaf lifting lug plate 19 and provided with a connecting device 24; when the tail water surge shaft gate 4 is in a locked state, the lower section gate blade side column bottom plate 22 is supported on the fixed locking beam 23; the connecting device 24 of the steel column 25 consists of a connecting plate 26 and a pin 27, and the lower door leaf lifting lug plate 19 and the connecting plate 26 of the steel column 25 are fixed through the pin 27.

Example 3:

as shown in fig. 5-10, in the present embodiment, the tail water surge chamber 1 is composed of 2 independent tail water surge shaft 2, and rock ridges 3 are arranged between adjacent independent tail water surge shaft 2 for separation. On each independent tail water surge shaft 22, arranging 2 tail water surge shaft gates 4, uniformly arranging the central lines of gate slots 5 of all the tail water surge shaft gates 4 on the same straight line, and canceling connecting beams 7 in the middle of bent frames 6 of the independent tail water surge shaft 4 along the water flow direction; the tail water pressure regulating well gate 2 is operated by a portal crane 29, the elevation of a portal crane track platform 30 and the elevation of the bottom of a traffic hole 13 are the same as the elevation of a ridge top platform 15, and the lift H on the portal crane 29 track_gsDistance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam 11_y+ installation single section door leaf 12 maximum height h_max。

The portal crane rail platform 30 is provided with a mounting platform 14 close to the traffic hole 13 for mounting a portal crane 29, and the portal crane 29 is mounted through a temporary crane 17; two sets of lifting lug plates 19 are symmetrically arranged on the top 18 of each section of gate leaf of the tail water surge shaft gate 4; when the tail water surge shaft gate 4 operates normally in a power station, a beam-column combined locking device 21 is arranged on an overhaul platform 20 between adjacent gate slots 5 for fixation; the beam-column combined locking device 21 consists of a fixed locking beam 23 corresponding to the position of the door leaf side column bottom plate 22 and a steel column 25 corresponding to the position of the lower section door leaf lifting lug plate 19 and provided with a connecting device 24; when the tail water surge shaft gate 4 is in a locked state, the lower section gate blade side column bottom plate 22 is supported on the fixed locking beam 23; the connecting device 24 of the steel column 25 consists of a connecting plate 26 and a pin 27, and the lower door leaf lifting lug plate 19 and the connecting plate 26 of the steel column 25 are fixed through the pin 27.

Example 4:

as shown in fig. 11-12 and fig. 17-20, in the present embodiment, the tail water surge chamber 1 is composed of 2 independent tail water surge shaft 2, and banks 3 are arranged between adjacent independent tail water surge shaft 2 for separation. Each independent tail water surge shaft 2 is provided with 2 tail water surge shaft gates 4, the central lines of gate slots 5 of all the tail water surge shaft gates 4 are uniformly arranged on the same straight line, and the middle parts of bent frames 6 of the independent tail water surge shafts 4 are in water flow direction to cancel connecting beams 7; the tail water surge shaft gate 4 is operated by a trolley 8; height H between trolley track bent frame platform 9 and top of rock ridge 3₁Greater than the upper limit size h of the trolley hoisting head 10_t+ distance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam 11_y+ installation single section door leaf 12 maximum height h_max。

Tail water pressure regulationThe well gate 4 and the trolley 8 are transported to the installation platform 14 through the traffic hole 13; the elevation of the bottom of the traffic hole 13 is the same as that of the platform 15 at the top of the rock ridge, the mounting platform 14 is arranged at the end close to the traffic hole 13 and is the same as that of the bottom of the traffic hole 13, and the trolley track bent platform 9 extends to the mounting platform 14 by the length L₁Not less than the maximum width B of the door leaf 12_m+ trolley 8 buffer distance B_h+ stop 16 length B_dThe length L of the mounting platform 14 is more than or equal to the length L of the trolley track bent frame platform 8 extending to the mounting platform 14₁+ minimum length L required for operation of temporary crane 17 mounting trolley 8_min。

Two sets of lifting lug plates 19 are symmetrically arranged on the top 18 of each section of gate leaf of the tail water surge shaft gate 4; when the tail water surge shaft gate 4 operates normally in a power station, a gate storage groove 31 is arranged on the maintenance platform 20 between the adjacent gate grooves 5 for storage and fixation; height H of door storage groove 31_cHeight H (the upper limit size H of the trolley hoisting head 10) from the trolley track bent frame platform 9 to the maintenance platform 20_t+ distance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam 11_y+ maximum height h from center of upper lifting lug 32 of gate to bottom edge 33 of bottom seal_{Total max})。

Each independent tail water pressure regulating 2-well is provided with 2 tail water pressure regulating well gates 4, and the gate storage groove 31 consists of a side groove 35 and an H-shaped middle groove 36.

Example 5:

as shown in fig. 13-14 and fig. 17-20, in the present embodiment, the tail water surge chamber 1 is composed of 2 independent tail water surge shaft 2, and banks 3 are arranged between adjacent independent tail water surge shaft 2 for separation. Each independent tail water surge shaft 2 is provided with 2 tail water surge shaft gates 4, the central lines of gate slots 5 of all the tail water surge shaft gates 4 are uniformly arranged on the same straight line, and the middle parts of bent frames 6 of the independent tail water surge shafts 4 are in water flow direction to cancel connecting beams 7; the tail water surge shaft gate 4 is operated by a trolley 8; height H between trolley track bent frame platform 9 and top of rock ridge 3₁Greater than the upper limit size h of the trolley hoisting head 10_t+ distance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam 11_y+ installation single section door leaf 12 maximum height h_max。

The tail water surge shaft gate 4 and the trolley 8 are transported to an installation platform 14 through a traffic hole 13; traffic hole13 the bottom is set to have the same elevation as that of the trolley track bent platform 9; the mounting platform 14 is arranged at the end part close to the traffic hole 13 and has the same elevation as the bottom of the traffic hole 13, after the trolley 14 is mounted through the temporary crane 17, the door leaf 12 is firstly placed on the locking beam 28 at the top of the gate slot 5 close to the mounting platform 14 through the temporary crane 17, and then transferred to the top of each gate slot 5 through the trolley 8 to complete mounting; two sets of lifting lug plates 19 are symmetrically arranged on the top 18 of each section of gate leaf of the tail water surge shaft gate 4; when the tail water surge shaft gate 4 operates normally in a power station, a gate storage groove 31 is arranged on the maintenance platform 20 between the adjacent gate grooves 5 for storage and fixation; height H of door storage groove 31_cHeight H (the upper limit size H of the trolley hoisting head 10) from the trolley track bent frame platform 9 to the maintenance platform 20_t+ distance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam 11_y+ maximum height h from center of upper lifting lug 32 of gate to bottom edge 33 of bottom seal_{Total max}). Each independent tail water pressure regulating 2-well is provided with 2 tail water pressure regulating well gates 4, and the gate storage groove 31 consists of a side groove 35 and an H-shaped middle groove 36.

Example 6:

as shown in fig. 15-16 and fig. 21-22, in the embodiment, the tail water surge chamber 1 is composed of 2 independent tail water surge shafts 2, and the adjacent independent tail water surge shafts 2 are separated by the formation ridge 3. Each independent tail water surge shaft 2 is provided with 2 tail water surge shaft gates 4, the central lines of gate slots 5 of all the tail water surge shaft gates 4 are uniformly arranged on the same straight line, and the middle parts of bent frames 6 of the independent tail water surge shafts 4 are in water flow direction to cancel connecting beams 7; the tail water pressure regulating well gate 2 is operated by a portal crane 29, the elevation of a portal crane track platform 30 and the elevation of the bottom of a traffic hole 13 are the same as the elevation of a ridge top platform 15, and the lift H on the portal crane 29 track_gsDistance h between the centers of the upper and lower hanging heads of the hydraulic grabbing beam 11_y+ installation single section door leaf 12 maximum height h_max(ii) a The portal crane rail platform 30 is provided with a mounting platform 14 close to the traffic hole 13 for mounting a portal crane 29, and the portal crane 29 is mounted through a temporary crane 17; two sets of lifting lug plates 19 are symmetrically arranged on the top 18 of each section of the gate leaf of the tail water surge shaft gate 4.

The tail water surge shaft gate 4 is characterized in that a gate storage groove 31 is formed in an overhauling platform 20 between adjacent gate grooves 5 for storage and fixation, and the height H of the gate storage groove 31_cLess than or equal to 29-rail upper lift H of gantry crane_gs+ height H from gantry crane track surface 34 to maintenance platform 20₂- (distance h between the centers of the upper and lower heads of the hydraulic gripping beam 11)_y+ maximum height h from center of upper lifting lug 32 of gate to bottom edge 33 of bottom seal_{Total max}) (ii) a Each independent tail water pressure regulating 2-well is provided with 2 tail water pressure regulating well gates 4, and the gate storage groove 31 consists of a side groove 35 and an H-shaped middle groove 36.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.