阅读说明：本技术 百万千瓦级核电站乏燃料转运容器吊装装置 (Hoisting device for spent fuel transfer container of million-kilowatt nuclear power station ) 是由 徐万年 刘省勇 任国平 魏学舟 李涛 张文利 刘登明 于 2019-08-30 设计创作，主要内容包括：本发明属于百万千瓦级核电站乏燃料转运容器吊装技术领域,尤其涉及一种百万千瓦级核电站乏燃料转运容器吊装装置,本发明的百万千瓦级核电站乏燃料转运容器吊装装置,通过设置吊梁、气动组件和吊臂,气动组件与吊臂连接且能够带动吊臂实现纵向的往复运动,这样,当需要对设置于水池内的乏燃料转运容器进行转运时,先下放吊钩至与吊耳平行处,再通过小角度的旋转吊臂,使得吊臂的吊钩能够插入到吊耳内,在实际使用过程中,减少了现场为适应不同容器接口频繁拆卸吊具,缩短了整体吊装时间,减少了工作量及人工操作失误的机率,提高了效率及安全性；同时也避免了长期频繁拆换导致的百万千瓦级核电站乏燃料转运容器吊装装置的磨损,提高了使用寿命。(The invention belongs to the technical field of hoisting of spent fuel transfer containers of million-kilowatt nuclear power stations, and particularly relates to a hoisting device of a million-kilowatt nuclear power station spent fuel transfer container, which is characterized in that a hoisting beam, a pneumatic assembly and a hoisting arm are arranged, the pneumatic assembly is connected with the hoisting arm and can drive the hoisting arm to longitudinally reciprocate, so that when a spent fuel transfer container arranged in a water pool needs to be transferred, a lifting hook is firstly put to a position parallel to a lifting lug, and then the lifting hook of the hoisting arm can be inserted into the lifting lug through a small-angle rotating hoisting arm, so that in the actual use process, frequent dismounting of the lifting appliance for adapting to different container interfaces on site is reduced, the integral hoisting time is shortened, the workload and the probability of manual operation errors are reduced, and the efficiency and the safety are improved; meanwhile, abrasion of the lifting device of the spent fuel transfer container of the million-kilowatt nuclear power station caused by long-term frequent disassembly and replacement is avoided, and the service life is prolonged.)

1. The utility model provides a container hoist device is transported to million kilowatt nuclear power station spent fuel for hoist and mount have the spent fuel of lug and transport container, its characterized in that: including the hanging beam, locate pneumatic assembly on the hanging beam and respectively with two sets of davits that pneumatic assembly connects, it is two sets of the davit is located respectively the hanging beam both ends, and two sets of the interval of davit with the interval of lug is the same, pneumatic assembly can drive davit longitudinal movement, and can with pneumatic assembly with the junction of davit rotates for the centre of a circle and predetermines the angle, every group along the department all to be equipped with from this davit to another the lifting hook that the davit extends for insert in the lug of spent fuel transportation container.

2. The lifting device of the spent fuel transfer container of the million-kilowatt nuclear power station according to claim 1, characterized in that: each suspension arm is also provided with a hook hole corresponding to the position of the lifting lug, and the lifting lug can be inserted and fixed in the hook hole.

3. The lifting device of the spent fuel transfer container of the million-kilowatt nuclear power station as claimed in claim 2, characterized in that: the lifting hook is characterized in that a rope fixing piece is further arranged in the lifting hook hole, one end of the rope fixing piece is connected with the lifting arm, and the rope fixing piece can be wound on the lifting lug when the lifting lug is fixedly connected in the lifting hook hole in an inserted mode.

4. the lifting device of the spent fuel transfer container of the million-kilowatt nuclear power station according to claim 1, characterized in that: the suspension arms are all steel structural members.

5. The lifting device of the spent fuel transfer container of the million-kilowatt nuclear power station according to claim 1, characterized in that: the hanging beam comprises two parallel clapboards, and a cushion block is fixedly arranged between the two clapboards.

6. The lifting device of the spent fuel transfer container of the million-kilowatt nuclear power station according to claim 5, characterized in that: the cushion block is in threaded connection with the two partition plates.

7. The lifting device of the spent fuel transfer container of the million-kilowatt nuclear power station according to claim 1, characterized in that: and the top of the hanging beam is also provided with a hanging rod for fixing the hanging beam, and the hanging rod is in pin connection with the hanging beam.

8. The lifting device of the spent fuel transfer container in the million-kilowatt nuclear power station according to claim 7, characterized in that: and the middle part of the suspender is provided with a slide hole for fixing the hoisting device of the spent fuel transfer container of the million-kilowatt nuclear power station.

9. The lifting device of the spent fuel transfer container of the million-kilowatt nuclear power station according to claim 6, characterized in that: the pneumatic assembly comprises a cylinder, a pipeline and a connector which are sequentially connected with one another, and each suspension arm is connected with one connector respectively.

10. The lifting device of the spent fuel transfer container in the million-kilowatt nuclear power station according to claim 9, characterized in that: the pipelines are all arranged on the partition board.

Technical Field

The invention belongs to the technical field of hoisting of spent fuel transfer containers of million-kilowatt nuclear power stations, and particularly relates to a hoisting device of a spent fuel transfer container of a million-kilowatt nuclear power station.

Background

Spent fuel is a nuclear fuel that has been irradiated with radiation and used, and is produced by a nuclear reactor in a nuclear power plant. Nuclear fuel after nuclear reactor reactions contains a large amount of radioactive elements and therefore has a large amount of radioactivity, which, if not properly disposed of, can seriously affect the environment and the health of the personnel in contact with them. Along with the service time of the nuclear power unit is prolonged, the spent fuel assemblies generated by operation are accumulated year by year and approach to reach the design capacity of a spent fuel pool, and the spent fuel is transported out of the spent fuel pool by considering the use of a transport container.

Because the spent fuel assembly has high radioactivity, the shielding cover of the storage container is selected to be opened under the water in the storage pool, and the operation is generally divided into two steps, namely, firstly hoisting and then taking the cover, the cover taking operation needs a manual operation lifting appliance to center, connect and lift the shielding cover under the deep water of nearly ten meters, time and labor are wasted, and certain operation risk exists, so that the conventional lifting appliance for lifting the spent fuel storage container has the technical problems of unreasonable structural design, lower lifting efficiency and operation risk.

Disclosure of Invention

The invention aims to provide a lifting device for a spent fuel transfer container of a million-kilowatt nuclear power station, and aims to solve the technical problems that a lifting appliance in the prior art is unreasonable in structural design, low in lifting efficiency and risky to operate.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a container hoist device is transported to million kilowatt-level nuclear power station spent fuel for hoist and mount spent fuel transportation container that has the lug, include the hanging beam, locate pneumatic subassembly on the hanging beam and respectively with two sets of davits that pneumatic subassembly is connected, it is two sets of the davit is located respectively the hanging beam both ends, and two sets of the interval of davit with the interval of lug is the same, pneumatic subassembly can drive davit longitudinal movement, and can with pneumatic subassembly with the junction of davit rotates for the centre of a circle and predetermines the angle, every group the lower border department of davit all is equipped with from this davit to another the lifting hook that the davit extends for insert in the lug of spent fuel transportation container.

Furthermore, each suspension arm is further provided with a hook hole corresponding to the position of the lifting lug, and the lifting lug can be inserted and fixed in the hook hole.

Furthermore, a rope fixing part with one end connected with the suspension arm is further arranged in the lifting hook hole, and the rope fixing part can be wound on the lifting lug when the lifting lug is fixedly inserted into the lifting hook hole.

Furthermore, the suspension arms are all steel structural members.

Furthermore, the hanging beam comprises two partition plates which are arranged in parallel, and a cushion block is fixedly arranged between the two partition plates.

Furthermore, the cushion block and the two partition plates are in threaded connection.

Furthermore, the top of the hanging beam is also provided with a hanging rod for fixing the hanging beam, and the hanging rod is in pin connection with the hanging beam.

Furthermore, the middle part of the suspender is provided with a slide hole for fixing the hoisting device of the spent fuel transfer container of the million-kilowatt nuclear power station.

Furthermore, the pneumatic assembly comprises a cylinder, a pipeline and a connector which are sequentially connected with each other, and each suspension arm is respectively connected with one connector.

Further, the pipelines are all arranged on the partition board.

The invention has the beneficial effects that: according to the lifting device for the spent fuel transfer container of the million-kilowatt nuclear power station, the lifting beam, the pneumatic assembly and the lifting arm are arranged, the pneumatic assembly is connected with the lifting arm and can drive the lifting arm to longitudinally reciprocate, so that when the spent fuel transfer container arranged in the water pool needs to be transferred, the lifting arm is firstly lowered to a position parallel to a lifting lug of the spent fuel transfer container through the pneumatic assembly, and then the lifting hook of the lifting arm can be inserted into the lifting lug through the small-angle rotating lifting arm, in the actual use process, due to the fact that the work of frequently disassembling the lifting appliance for adapting to different container interfaces on site is greatly reduced, the whole lifting time is shortened, the workload and the probability of manual operation errors are reduced, and the efficiency and the safety are improved; meanwhile, abrasion of the lifting device of the spent fuel transfer container of the million-kilowatt nuclear power station caused by long-term frequent disassembly and replacement is avoided, and the service life is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a first structural schematic diagram of a spent fuel transfer container hoisting device of a million-kilowatt nuclear power station provided by an embodiment of the invention;

Fig. 2 is a schematic structural diagram ii of the lifting device for the spent fuel transfer container of the million-kilowatt nuclear power station provided in the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-hanging beam; 11-a separator; 12-cushion block;

20 — a pneumatic assembly; 21-a pipeline;

30-a boom; 31-a hook; 32-hook hole;

40-a boom; 41-sliding hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-2 are exemplary and intended to be illustrative of the invention and should not be construed as limiting the invention.

in the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1-2, an embodiment of the invention provides a lifting device for a spent fuel transfer container of a million kilowatt nuclear power station, which is used for lifting a spent fuel transfer container with lifting lugs, and includes a lifting beam 10 and two sets of lifting arms 30 arranged on the lifting beam 10 and respectively connected with the pneumatic assembly 20, wherein the two sets of lifting arms 30 are respectively arranged at two ends of the lifting beam 10, the distance between the two sets of lifting arms is the same as that between the lifting lugs, the pneumatic assembly 20 can drive the lifting arms 30 to move longitudinally, and can rotate by a preset angle with the connection between the pneumatic assembly 20 and the lifting arms 30 as a circle center, and a lifting hook 31 extending from the lifting arm 30 to another lifting arm 30 is arranged at the lower edge of each set of lifting arms 30, so as to be inserted into the lifting lugs of the spent.

According to the lifting device for the spent fuel transfer container of the million-kilowatt nuclear power station, provided by the embodiment of the invention, the lifting beam 10, the pneumatic component 20 and the lifting arm 30 are arranged, the pneumatic component 20 is connected with the lifting arm 30 and can drive the lifting arm 30 to realize longitudinal reciprocating motion, so that when a spent fuel transfer container arranged in a water pool needs to be transferred, the lifting arm 30 is firstly put to the position parallel to a lifting lug of the spent fuel transfer container through the pneumatic component 20, and then the lifting hook 31 of the lifting arm 30 can be inserted into the lifting lug through the rotation of the lifting arm 30 at a small angle, in the actual use process, as the work of frequently disassembling the lifting appliance for adapting to different container interfaces on site is greatly reduced, the integral lifting time is shortened, the workload and the probability of manual operation errors are reduced, and the efficiency and the safety are improved; meanwhile, abrasion of the lifting device of the spent fuel transfer container of the million-kilowatt nuclear power station caused by long-term frequent disassembly and replacement is avoided, and the service life is prolonged.

further, in the present embodiment, as shown in fig. 1 to 2, each suspension arm 30 is further provided with a hook hole 32 corresponding to the position of the lifting lug, and the lifting lug can be inserted and fixed in the hook hole 32. The lifting hook holes 32 which can be fixedly inserted and connected are formed in the lifting lugs, so that the container can be fixed by adopting two connection modes respectively through the lifting device for the spent fuel transferring container of the million-kilowatt nuclear power station. When the suspension arm 30 and the spent fuel transfer container are connected in a manual mode, the suspension arm 30 needs to be directly pushed by manpower to realize the sleeving or separation of the suspension arm 30 and the lifting lug, at the moment, a trunnion stop block positioned at the bottom of the spent fuel transfer container generally needs to be installed, and the purpose of the trunnion stop block is to prevent the container from accidentally falling when moving or to protect the suspension arm 30 and other parts when the container collides with other obstacles; when the container is pneumatically installed or disassembled, the opening and closing of the suspension arms 30 are realized through the action of the pneumatic components 20 respectively connected to the two suspension arms 30, and a vertical baffle plate positioned at the outer side of the suspension arm 30 is installed on the suspension arm 30 to guide the suspension arm 30 and simultaneously prevent the shaking amplitude from being too large when the container is vertically lifted. Boom 30 is a steel structure. By arranging the suspension arm 30 as a steel structure, the rigidity and strength thereof are effectively ensured.

Further, in the present embodiment, as shown in fig. 1 to 2, a rope fixing member having one end connected to the suspension arm 30 is further disposed in the hook hole 32, and the rope fixing member can be wound around the lifting lug when the lifting lug is inserted and fixed in the hook hole 32. Through setting up the rope mounting, specifically, this rope mounting is stainless steel cable for realize the secondary fixation with the lug.

further, in the present embodiment, as shown in fig. 1 to 2, the suspension beam 10 includes two partition plates 11 arranged in parallel, and a cushion block 12 is fixedly disposed between the two partition plates 11. The cushion block 12 and the two partition plates 11 are in threaded connection. The cushion block 12 and the partition plate 11 which are connected in a detachable mode are arranged, so that the installation and the disassembly of the cushion block are facilitated, and the portability of transportation and storage of the cushion block is effectively improved.

Further, in the present embodiment, as shown in fig. 1 to 2, a suspension bar 40 for fixing the suspension beam 10 is further provided on the top of the suspension beam 10, and the suspension bar 40 is pin-connected to the suspension beam 10. Since the boom 30 can be rotated at a small angle around the connection of the pneumatic assembly 20 and the boom 30, a pin connection is used to reduce the wear on the boom 40 and the suspension beam 10 during rotation.

Further, in the present embodiment, as shown in fig. 1, the middle part of the hanger rod 40 is provided with a slide hole 41 for fixing a lifting device of a spent fuel transportation container of a million kilowatt nuclear power station. Through setting up slide opening 41 for can fix on outside slide bar, and can adjust this million kilowatt level nuclear power station spent fuel transportation container hoist device's position along with the user demand in the within range of slide bar, the actual construction of being convenient for.

Further, in the present embodiment, as shown in fig. 1, the pneumatic assembly 20 includes a cylinder, a pipeline 21 and a joint connected in sequence, each of the booms 30 is connected with a joint, and the pipeline 21 is disposed on the partition 11. By disposing the pipe 21 of the pneumatic module 20 on the partition 11, the boom 30 is effectively prevented from damaging the pneumatic module 20, and in addition, the mounting and dismounting of the pneumatic module 20 can be facilitated.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.