阅读说明：本技术 一种汽包安装装置及其使用方法 (Steam pocket installation device and using method thereof ) 是由 陈恭 靳文远 卢磊 李亚鹏 吴建国 蒋鸣明 于 2021-10-19 设计创作，主要内容包括：本发明公开了一种汽包安装装置及其使用方法,该装置包括钢架,钢架最外侧相对的两立柱底端分别安装左下定滑轮和右下定滑轮,左下定滑轮和右下定滑轮正上方的横梁上对应安装左上定滑轮和右上定滑轮,二者之间安装起吊定滑轮一和起吊定滑轮二,起吊定滑轮一和起吊定滑轮二下方分别设有动滑轮一和动滑轮二,动滑轮一和动滑轮二下方设有吊索；拉绳一端固定连接起吊定滑轮一,另一端分别依次连接动滑轮一、起吊定滑轮一、左上定滑轮、左下定滑轮后连接卷扬机,卷扬机固定设置在地面位于左下定滑轮和右下定滑轮的一端,另一侧拉绳同样设置。本发明根据实际场地设计,解决目前的锅炉汽包吊装装置受到场地限制,无法满足高空吊装需求的问题。(The invention discloses a steam pocket installation device and a using method thereof, the device comprises a steel frame, the bottom ends of two opposite upright posts at the outermost side of the steel frame are respectively provided with a left lower fixed pulley and a right lower fixed pulley, a cross beam right above the left lower fixed pulley and the right lower fixed pulley is correspondingly provided with a left upper fixed pulley and a right upper fixed pulley, a first hoisting fixed pulley and a second hoisting fixed pulley are arranged between the left lower fixed pulley and the right upper fixed pulley, a first movable pulley and a second movable pulley are respectively arranged below the first hoisting fixed pulley and the second hoisting fixed pulley, and slings are arranged below the first movable pulley and the second movable pulley; one end of the pull rope is fixedly connected with a first hoisting fixed pulley, the other end of the pull rope is connected with a winch after being sequentially connected with a first movable pulley, a first hoisting fixed pulley, an upper left fixed pulley and a lower left fixed pulley respectively, the winch is fixedly arranged at one end, located on the ground, of the lower left fixed pulley and the lower right fixed pulley, and the pull rope on the other side is arranged similarly. The invention is designed according to the actual field, and solves the problem that the conventional boiler drum hoisting device is limited by the field and cannot meet the requirement of high-altitude hoisting.)

1. A steam pocket installation device is characterized by comprising a steel frame (9), a winch (10), a pull rope (11), a pulley block and a sling (12), wherein the steel frame (9) is a factory building frame formed by connecting a plurality of cross beams (901) and upright columns (902), the bottom ends of two opposite outermost side columns (2) are respectively provided with a left lower fixed pulley (1) and a right lower fixed pulley (2), the cross beams (901) right above the left lower fixed pulley (1) and the right lower fixed pulley (2) are respectively and correspondingly provided with a left upper fixed pulley (3) and a right upper fixed pulley (4), a hoisting fixed pulley I (5) and a hoisting fixed pulley II (6) are arranged between the left upper fixed pulley (3) and the right upper fixed pulley (4), the movable pulley I (7) and the movable pulley II (8) are respectively arranged below the hoisting fixed pulley I (5) and the hoisting fixed pulley II (6), the sling (12) is arranged below the movable pulley I (7) and the movable pulley II (8), is used for connecting the steam drum; one end of a pull rope (11) is fixedly connected with a first hoisting fixed pulley (5), the other end of the pull rope is respectively and sequentially connected with a first movable pulley (7), a first hoisting fixed pulley (5), an upper left fixed pulley (3) and a lower left fixed pulley (1) and then connected with a winch (10), one end of the other pull rope (11) is fixedly connected with a second hoisting fixed pulley (6), the other end of the pull rope is sequentially connected with a second movable pulley (8), a second hoisting fixed pulley (6), an upper right fixed pulley (4) and a lower right fixed pulley (2) and then connected with another winch (10), and the two winches (10) are respectively and fixedly arranged at one end, which is far away from the lower left fixed pulley (1) and the lower right fixed pulley (2), on the ground.

2. The steam drum installation device according to claim 1, wherein the first hoisting fixed pulley (5) and the second hoisting fixed pulley (6) are connected with the cross beam (901) through a pull rod (13), the top end of the pull rod (13) is connected with a guide rail (14) in a sliding manner, and the guide rail (14) is fixedly arranged on the bottom end face of the cross beam (901).

3. The steam pocket installation device as claimed in claim 2, wherein the cross section of the guide rail (14) is a semi-enclosed hollow cavity with an opening at the bottom end, the top end of the pull rod (13) is T-shaped and extends into the cavity of the guide rail (14) to move along the length direction of the guide rail (14), positioning parts (15) are respectively arranged at two sides of the pull rod (13), and the positioning parts (15) are detachably and fixedly connected with the guide rail (14) and used for limiting the position of the pull rod (13).

4. A steam drum mounting device according to claim 3, characterized in that the positioning member (15) comprises an upper clamping plate (1501) and a lower clamping plate (1502), the upper clamping plate (1501) is located in the cavity of the guide rail (14), the lower clamping plate (1502) is located outside the cavity of the guide rail (14), the upper clamping plate (1501) and the lower clamping plate (1502) are connected through a screw (1503), and the positioning member (15) and the guide rail (14) are fastened by screwing the lower clamping plate (1502).

5. A steam pocket installation device according to claim 1, characterized in that the bottom ends of the first movable pulley (7) and the second movable pulley (8) are provided with a grommet (16), and the sling (12) is fixedly connected with the grommet (16) in a detachable manner.

6. The steam drum installation device according to claim 1, wherein the winch (10) is fixed to the steel frame (9) at a position 6-8m away from the left lower fixed pulley (1) and the right lower fixed pulley (2) by angle steel welding, and the two pull ropes (11) are connected with the winch (10) in a crossed manner.

7. A steam drum mounting device according to claim 1, characterized in that the left lower fixed pulley (1) and the right lower fixed pulley (2) are fixed inside the bottom end of the upright post (902) by means of chain links.

8. Use of a steam drum mounting device according to any of claims 1-7, characterized in that the method is: the steam drum hoisting device is characterized in that two slings (12) are fastened at two ends of the steam drum after separately surrounding the steam drum, the positions of a first hoisting pulley (5) and a second hoisting pulley (6) are adjusted through a pull rod (13) to be respectively corresponding to the slings (12), the slings (12) are fixed on corresponding cable rings (16), a winch (10) is slowly started firstly, a pull rope (11) is tightened, the pull rope (11) is transversely and vertically adjusted through the position of the pull rod (13), the pull rod (13) is fixed through a positioning piece (15), the two winches (10) are started simultaneously, and the steam drum is hoisted.

Technical Field

The invention belongs to the technical field of hoisting and installing equipment, and particularly relates to a boiler drum installing device and a using method thereof.

Background

The steam drum is the most important compression element in the natural circulation boiler and is mainly used in the sub-high pressure subcritical boiler in the power production. Water becomes qualified superheated steam in the boiler, the three processes of heating, vaporization and superheating are carried out, the steam drum is a connection junction of the three processes, normal water circulation of the boiler is ensured, and a steam-water separation device and a continuous sewage discharge device are arranged in the steam drum, so that the steam quality of the boiler is ensured.

Boiler drums often need to be installed by using hoisting equipment when being installed. Chinese patent with publication number CN 210064970U discloses a hoist device for installation of boiler drum, which comprises a support base, a fixed support rod, a rotation support rod, a hoisting crossbeam slide rail, a hoisting electric hoist assembly, a steel wire lifting rope fixed support assembly, a rotation motor support seat, a rotation motor gear, a rotation shaft seat, a rotation bearing, a rotation gear ring and a controller, wherein the fixed support rod is arranged on the support base and is fixedly connected with the support base, the rotation shaft seat is arranged at the top of the fixed support rod and is fixedly connected with the fixed support rod, the rotation shaft seat is provided with the rotation bearing, the lower part of the rotation support rod is arranged on the rotation bearing outer ring and is connected with the rotation bearing. When the device hoists the boiler drum, accurate position hoisting can be carried out, the hoisting position is stable, and the hoisted stress is uniform.

Chinese patent with publication number CN 203922434U discloses a boiler drum hoisting device based on pulley blocks, which comprises a left hoisting rod arranged on the left side of a hoisted boiler drum, a right hoisting rod arranged on the right side of the boiler drum, and a left hoisting device and a right hoisting device which are positioned above the left side and the right side of the drum, wherein the left hoisting rod is connected with the left hoisting device through a left pulley block, and the right hoisting rod is connected with the right hoisting device through a right pulley block; the left suspender and the right suspender are U-shaped suspenders sleeved on the boiler drum from bottom to top, the left hoisting device and the right hoisting device are hoists, the left hoisting device is fixed on the left supporting frame, the right hoisting device is fixed on the right supporting frame, and the left supporting frame and the right supporting frame are both installed on a completed boiler steel frame.

The hoist device of above-mentioned two kinds of boiler steam drums can both be fast, hoist the operation to the boiler steam drum portably, but in practical application, utilize the boiler steam drum installation of the large-scale boiler of biomass power generation like this project, boiler steam drum hoist and mount are in large quantity, require to hoist the boiler steam drum to specific mounted position, and hoist and mount height and reach forty more meters, receive the place restriction, adopt two kinds of above-mentioned boiler steam drum hoist device installation difficulties itself, there is the potential safety hazard, and a boiler steam drum hoist device based on the assembly pulley is difficult to hoist the boiler steam drum to required particular position. Based on the above, in the current electric power construction industry, the boiler drum installation device is often designed temporarily to perform boiler drum hoisting work according to the type of the boiler and different field environments, so as to meet the requirement of high-altitude operation of the project.

Disclosure of Invention

The invention aims to solve the problems that the existing boiler steam drum hoisting device is limited by places, is difficult to operate and use and cannot meet the requirement of high-altitude hoisting.

The invention adopts the technical scheme that the steam pocket installation device comprises a steel frame, a winch, a pull rope, a pulley block and a sling, wherein the steel frame is a plant frame formed by connecting a plurality of stand columns and a cross beam, the bottom ends of two stand columns opposite to each other at the outermost side are respectively provided with a left lower fixed pulley and a right lower fixed pulley, the cross beam right above the left lower fixed pulley and the right lower fixed pulley is respectively and correspondingly provided with a left upper fixed pulley and a right upper fixed pulley, a first hoisting fixed pulley and a second hoisting fixed pulley are arranged between the left upper fixed pulley and the right upper fixed pulley, a first movable pulley and a second movable pulley are respectively arranged below the first hoisting fixed pulley and the second hoisting fixed pulley, and the sling is arranged below the first movable pulley and the second movable pulley and is used for connecting a steam pocket; one end of each pull rope is fixedly connected with a first lifting fixed pulley, the other end of each pull rope is connected with a winch after being sequentially connected with a first movable pulley, a first lifting fixed pulley, an upper left fixed pulley and a lower left fixed pulley respectively, one end of the other pull rope is fixedly connected with a second lifting fixed pulley, the other end of each pull rope is connected with a winch after being sequentially connected with a second movable pulley, a second lifting fixed pulley, an upper right fixed pulley and a lower right fixed pulley, and the two winches are fixedly arranged at one ends of the lower left fixed pulley and the lower right fixed pulley respectively on the ground.

Preferably, the first hoisting fixed pulley and the second hoisting fixed pulley are connected with the cross beam through pull rods, the top ends of the pull rods are connected with guide rails in a sliding mode, and the guide rails are fixedly arranged on the bottom end face of the cross beam.

Preferably, the cross-section of the guide rail is a semi-enclosed hollow cavity with an opening at the bottom end, the top end of the pull rod is T-shaped and extends into the guide rail cavity to move along the length direction of the guide rail, positioning pieces are respectively arranged on two sides of the pull rod, and the positioning pieces are detachably and fixedly connected with the guide rail and used for limiting the position of the pull rod.

Preferably, the locating piece includes punch holder and lower plate, and the punch holder is located the guide rail cavity, and the lower plate is located the guide rail cavity outside, is connected through the lead screw between punch holder and the lower plate, through twisting lower plate fastening setting piece and guide rail.

Preferably, the bottom ends of the first movable pulley and the second movable pulley are provided with grommets, and the sling is fixedly connected with the grommets in a detachable mode.

Preferably, the winch is fixed on the position, 6-8m away from the left lower fixed pulley and the right lower fixed pulley, of the steel frame through angle steel in a welding mode, and the two pull ropes are connected with the winch in a crossed mode.

Preferably, the left lower fixed pulley and the right lower fixed pulley are fixed on the inner side of the bottom end of the upright post through a chain.

A use method of a steam pocket installation device comprises the following steps: the method comprises the steps of separately surrounding a steam drum with two slings and then fastening the slings at two ends of the steam drum, adjusting the positions of a first hoisting pulley and a second hoisting pulley through a pull rod to enable the slings to correspond to the slings respectively, fixing the slings on corresponding cable rings, slowly starting a winch to enable the pull rope to be tight, finally adjusting the position of the pull rod to enable the pull rope to be flat and vertical, fixing the pull rod through a positioning piece, and simultaneously starting the two winches to hoist the steam drum.

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

1) according to the design of an actual field, the winch is arranged on the ground and fixed through a steel frame, the direction of force is changed and labor is saved by combining a plurality of fixed pulleys and movable pulleys, and the steam drum is hoisted at the high altitude by forty meters, so that the problems that the conventional boiler steam drum hoisting device is limited by the field, is difficult to operate and use and cannot meet the requirement of high altitude hoisting are solved;

2) according to the steam drum lifting device, the guide rails are arranged on the cross beam and are connected with the first lifting fixed pulley and the second lifting fixed pulley in a sliding manner, so that the positions of the first lifting fixed pulley and the second lifting fixed pulley can be adjusted to adapt to installation of different steam drums, the lifting requirements of a plurality of steam drums are met, and the positions of the first lifting fixed pulley and the second lifting fixed pulley are fixed through the positioning piece, so that the safety, reliability, stability and firmness in the lifting process are ensured;

3) the cable rings are arranged below the first movable pulley and the second movable pulley and detachably connected with the slings, so that the slings can be flexibly used for connecting the steam pocket, and the portability is higher;

4) the distance between the winch and the left lower fixed pulley and the distance between the winch and the right lower fixed pulley are 6-8m, so that sufficient torque is ensured, and the balance and the stability of the whole device are enhanced;

5) the left lower fixed pulley and the right lower fixed pulley are fixed through the chain, so that the movable steam drum has certain mobility, and the position of the movable steam drum can be adjusted to adapt to the direction of pulling force along with the movement of the pulling rope for hoisting different steam drums.

Drawings

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

FIG. 2 is a cross-sectional view of the guide rail of the present invention;

FIG. 3 is a schematic view of a positioning member according to the present invention;

the labels in the figure are: 1. the lifting device comprises a left lower fixed pulley, 2, a right lower fixed pulley, 3, a left upper fixed pulley, 4, a right upper fixed pulley, 5, a first lifting fixed pulley, 6, a second lifting fixed pulley, 7, a first movable pulley, 8, a second movable pulley, 9, a steel frame, 901, a cross beam, 902, an upright post, 10, a winch, 11, a pull rope, 12, a sling, 13, a pull rod, 14, a guide rail, 15, a positioning piece, 1501, an upper clamping plate, 1502, a lower clamping plate, 1503, a lead screw, 1504, a baffle, 16 and a grommet.

Detailed Description

The invention will be further explained in conjunction with the drawings attached to the specification in order to facilitate better understanding by those skilled in the art.

Example 1

As shown in fig. 1-3, a steam pocket installation device comprises a steel frame 9, a winch 10, a pull rope 11, a pulley block and a sling 12, wherein the pulley block comprises a left lower fixed pulley 1, a right lower fixed pulley 2, a left upper fixed pulley 3, a right upper fixed pulley 4, a first hoisting fixed pulley 5, a second hoisting fixed pulley 6, a first movable pulley 7 and a second movable pulley 8.

The steel frame 9 is a factory building frame formed by connecting a plurality of cross beams 901 and upright columns 902, a left lower fixed pulley 1 and a right lower fixed pulley 2 are respectively and symmetrically arranged at the bottom ends of two opposite upright columns 902 at the outermost side of the steel frame 9, a left upper fixed pulley 3 and a right upper fixed pulley 4 are respectively and correspondingly arranged on the cross beams 901 right above the left lower fixed pulley 1 and the right lower fixed pulley 2, a hoisting fixed pulley I5 and a hoisting fixed pulley II 6 are arranged between the left upper fixed pulley 3 and the right upper fixed pulley 4, and the left upper fixed pulley 3, the right upper fixed pulley 4, the hoisting fixed pulley I5 and the hoisting fixed pulley II 6 are positioned on the same horizontal line, so that the tension loss is avoided; a movable pulley I7 and a movable pulley II 8 are respectively arranged below the hoisting fixed pulley I5 and the hoisting fixed pulley II 6, and a sling 12 is arranged below the movable pulley I7 and the movable pulley II 8 and is used for connecting a steam drum; one end of a pulling rope 11 is fixedly connected with a first hoisting fixed pulley 5, the other end of the pulling rope is respectively and sequentially connected with a first movable pulley 7, a first hoisting fixed pulley 5, an upper left fixed pulley 3 and a lower left fixed pulley 1 and then connected with a winch 10, one end of another pulling rope 11 is fixedly connected with a second hoisting fixed pulley 6, the other end of the pulling rope is sequentially connected with a second movable pulley 8, a second hoisting fixed pulley 6, an upper right fixed pulley 4 and a lower right fixed pulley 2 and then connected with another winch 10, and the two winches 10 are respectively and fixedly arranged at one ends, far away from the lower left fixed pulley 1 and the lower right fixed pulley 2, of the ground.

Preferably, the first hoisting fixed pulley 5 and the second hoisting fixed pulley 6 are connected with the cross beam 901 through pull rods 13, the top ends of the pull rods 13 are connected with guide rails 14 in a sliding manner, the guide rails 14 are fixedly arranged on the bottom end face of the cross beam 901, and the position adjustment of the first hoisting pulley 5 and the second hoisting pulley 6 is realized by moving the pull rods 13, so that the first hoisting pulley and the second hoisting pulley correspond to the lower sling 12, and the steam drum hoisting at different positions is met.

Preferably, the cross section of the guide rail 14 is a semi-enclosed hollow cavity with an opening at the bottom end, the top end of the pull rod 13 is T-shaped, and the pull rod 13 can move along the length direction of the guide rail 14 after extending into the cavity of the guide rail 14, so that the structure is convenient for directly moving the pull rod 13, time and labor are saved, and the operation is simplified; positioning parts 15 are respectively arranged on two sides of the pull rod 13, and the positioning parts 15 are detachably and fixedly connected with the guide rail 14 and used for limiting the position of the pull rod 13. The positioning part 15 is detached when the pull rod 13 is moved, the positioning part 15 is fixed after the position of the pull rod 13 is determined, the position of the pull rod 13 is fixed, the stable operation of the hoisting process is ensured, and safety and reliability are realized.

Preferably, the positioning member 15 comprises an upper clamp plate 1501 and a lower clamp plate 1502, the upper clamp plate 1501 is located in the cavity of the guide rail 14, the lower clamp plate 1502 is located outside the cavity of the guide rail 14, the upper clamp plate 1501 is connected with the lower clamp plate 1502 through a screw 1503, the lower clamp plate 1502 is far away from or close to the upper clamp plate 1501 through screwing the lower clamp plate 1502, and the positioning member 15 and the guide rail 14 are fastened through screwing the lower clamp plate 1502 upwards; in addition, in order to improve the safety factor, a baffle 1504 is arranged at the bottom end of the screw 1503 to prevent the lower clamping plate 1502 from falling off.

Preferably, the bottom ends of the first movable pulley 7 and the second movable pulley 8 are provided with the grommets 16, the slings 12 are detachably and fixedly connected with the grommets 16, the slings 12 can be flexibly used to be fixed with the grommets 16 after being connected with the steam pocket, the portability is improved, the tightness of connection with the steam pocket is enhanced, and the stability of the hoisting process is facilitated.

Preferably, the winch 10 is arranged at a position 26-8 m away from the left lower fixed pulley 1 and the right lower fixed pulley to ensure enough moment; and through angle steel welding back and the stand 902 fixed connection of steelframe 9, adopt the angle steel to enclose around stand 902 welding formation fixed frame promptly, fixed frame passes through the bolt and is connected with hoist engine 10 frame again, through the fixed hoist engine 10 of steelframe 9, effectively guarantees hoist engine 10's stability, prevents to be dragged by reaction force, influences the hoist and mount. In order to increase the moment, two pull ropes 11 are connected to the hoist 10 across.

Preferably, the left lower fixed pulley 1 and the right lower fixed pulley 2 are fixed inside the bottom end of the upright post 902 through a chain. Through chain fixing, the lower left fixed pulley 1 and the lower right fixed pulley 2 have certain mobility, and aiming at hoisting of different steam drums, the lower left fixed pulley 1 and the lower right fixed pulley 2 can move along with the pull rope 11 to adjust the direction of self position adaptive tension.

Example 2

A use method of a steam pocket installation device comprises the following steps: according to the method, a pull rope 11 is respectively connected with a winch 10 on the right side of a steel frame 9, a left lower fixed pulley 1, a left upper fixed pulley 3, a first hoisting fixed pulley 5 and a first movable pulley 7, the other pull rope 11 is respectively connected with the winch 10 on the left side of the steel frame 9, a right lower fixed pulley 2, a right upper fixed pulley 4, a second hoisting fixed pulley 6 and a second movable pulley 8, two slings 12 are separately wound around a steam drum and then fastened at two ends of the steam drum, a pull rod 13 is moved along a guide rail 14, the positions of the first hoisting pulley 5 and the second hoisting pulley 6 are adjusted through the pull rod 13 to respectively correspond to the two slings 12 below, the slings 12 are fixed on cable rings 16 of the corresponding first movable pulley 7 or second movable pulley 8, the winch 10 is slowly started to tighten the pull rope 11, the pull rope 13 is finally adjusted to enable the pull rope 11 to be horizontally and vertically horizontal, positioning parts 15 are adopted to fix the two winches 13 on two sides of the pull rod 13 to limit the movement, and the two winches 10 are started simultaneously, and hoisting the steam drum.

According to the design of an actual field, the winch 10 is installed on the ground and fixed through the steel frame 9, dragging by reaction force is prevented, safety is guaranteed, the combination of the fixed pulleys and the movable pulleys is utilized, the direction of a force is changed, labor is saved, in addition, the arrangement of the first lifting fixed pulley 5 and the second lifting fixed pulley 6 is adjusted, steam drum lifting at different positions is met, the direction of the stay cord 11 is kept horizontal and vertical, a forty-meter high-altitude stable steam drum lifting is realized, and the problems that the existing boiler steam drum lifting device is limited by the field, is difficult to operate and use and cannot meet the high-altitude lifting requirement are solved.

The above-described examples are merely illustrative of preferred embodiments of the present invention and do not limit the scope of the present invention. Various modifications and alterations of this invention will become apparent to those skilled in the art without departing from the spirit and principles of this invention, and it is intended to cover such modifications and alterations in the invention as fall within the true spirit and scope of the appended claims.