阅读说明：本技术 一种用于反应堆厂房临时顶盖的升降装置 (Lifting device for be used for interim top cap of reactor factory building ) 是由 江祥 柳胜华 张瑞 杨世峰 卢强 张晓春 纪腾飞 于 2020-06-10 设计创作，主要内容包括：本发明的目的在于公开一种用于反应堆厂房临时顶盖的升降装置,它包括竖向支撑、升降平台和环向轨道,环向轨道分别安装在地面和反应堆安全壳临时顶盖上,竖向支撑的顶端与反应堆安全壳临时顶盖上的环向轨道相连接,竖向支撑的底端与地面上的环向轨道相连接,升降平台安装在竖向支撑的侧面并沿竖向支撑上下运动；采用可伸缩平台板以应对安全壳内表面加劲肋等突起部分对运行的影响,高度调整方便,结构简易稳固,设有安全防护机构以及超重报警器,环状结构方便对安全壳进行建造或维修操作,有利于保障施工人员的人身安全；设有物料储存盒,防止施工过程中物料坠落；既可以用于安全壳建造时期,也可用于建造完成后的检修阶段,实现本发明的目的。(The invention aims to disclose a lifting device for a temporary top cover of a reactor plant, which comprises a vertical support, a lifting platform and a circumferential rail, wherein the circumferential rail is respectively arranged on the ground and the temporary top cover of a containment vessel; the telescopic platform plate is adopted to deal with the influence of the raised parts such as stiffening ribs and the like on the inner surface of the containment vessel on the operation, the height adjustment is convenient, the structure is simple and stable, the safety protection mechanism and the overweight alarm are arranged, the annular structure is convenient for the construction or maintenance operation of the containment vessel, and the personal safety of constructors is favorably ensured; the material storage box is arranged to prevent the falling of materials in the construction process; the method can be used for the construction period of the containment and the overhaul stage after the construction is finished, and the purpose of the invention is realized.)

1. The utility model provides a elevating gear for temporary top cap of reactor factory building, its characterized in that, it includes vertical braces, lift platform and hoop track, the hoop track is installed respectively on ground and the temporary top cap of reactor containment, the top of vertical braces is connected with the hoop track on the temporary top cap of reactor containment, the bottom of vertical braces is connected with subaerial hoop track, lift platform installs vertical braces's side and along vertical braces up-and-down motion.

2. The lifting device for the temporary roof of the reactor building as claimed in claim 1, wherein the lifting platform comprises a retractable platform plate, a safety barrier and a safety protection belt, the safety barrier is arranged at the edge of the retractable platform plate, one end of the safety protection belt is sleeved on the safety barrier, and the other end of the safety protection belt is tied between the waist of a constructor.

3. The lifting device for the temporary roof of the reactor plant as claimed in claim 2, wherein a collar is provided at one end of the safety guard band, and the collar is sleeved on the safety guard rail.

4. The lifting device for the temporary top cover of the reactor plant as claimed in claim 1, wherein the vertical support is a steel wire rope structure, the vertical support is vertically installed, rotating motors are respectively arranged at the bottom and the top of the vertical support, and a circumferential movement motor for driving the vertical support to circumferentially move along the circumferential rail is respectively arranged at the joint of the vertical support and the circumferential rail.

5. The lifting device for temporary roofs of reactor buildings according to claim 1, characterized in that the top of said vertical supports is provided with sensors for the travel limit of the lifting platform.

6. The lift device for temporary roofs of reactor buildings according to claim 1, wherein an overload alarm is provided on said lift platform.

7. The lifting device for temporary roofs of reactor buildings according to claim 1, wherein said lifting platform is provided with a material storage box.

Technical Field

The invention relates to a lifting device for a temporary top cover of a factory building, in particular to a lifting device for a temporary top cover of a reactor factory building.

Background

At present, a new generation of nuclear power stations in China adopt an open-top construction mode, so that civil construction and equipment installation can be well and synchronously carried out, and the construction period is shortened; the reactor building is always in a state of opening the top before the containment vessel head (CVTH) is in place. The top-opening construction mode improves the construction and safety efficiency, but also causes the safety problems of increasing the risks of falling of personnel, falling of objects from high altitude, electric shock and the like in severe weather; rain and snow weather aggravate the corrosion of equipment/pipelines/steel bars, and cause the quality problems of paint reworking and concrete soaking cracking; the construction activities such as welding, painting, pouring, measuring and the like are interrupted in severe weather, the construction continuity is influenced, the progress of the construction period is influenced, and the like.

Although adopted interim top cap structure in the work progress, but there is supporting elevating gear, in order to develop the needs of operations such as containment internal weld and spray paint, can only satisfy operating personnel's construction requirement through setting up a large amount of scaffolds, not only construction cost is very high, set up the in-process and need spend a large amount of time, and there is huge potential safety hazard, in the operating personnel work progress, the article takes place when the condition that falls, to the working face, the safety construction, civilized construction has caused very big influence, and the incident that interim top cap membrane face ponding pounded the scaffold takes place easily.

Therefore, there is a particular need for a lifting device for temporary roofs of reactor buildings to solve the above-mentioned existing problems.

Disclosure of Invention

The invention aims to provide a lifting device for a temporary top cover of a reactor factory building, which adopts a telescopic platform plate form to deal with the influence of a raised part such as a stiffening rib on the inner surface of a containment shell and the like, thereby not only improving the construction operation efficiency, but also reducing the operation risk.

The technical problem solved by the invention can be realized by adopting the following technical scheme:

the utility model provides a elevating gear for temporary top cap of reactor factory building, its characterized in that, it includes vertical braces, lift platform and hoop track, the hoop track is installed respectively on ground and the temporary top cap of reactor containment, the top of vertical braces is connected with the hoop track on the temporary top cap of reactor containment, the bottom of vertical braces is connected with subaerial hoop track, lift platform installs vertical braces's side and along vertical braces up-and-down motion.

In one embodiment of the invention, the lifting platform comprises a telescopic platform plate, a safety guardrail and a safety protection belt, wherein the safety guardrail is arranged at the edge of the telescopic platform plate, one end of the safety protection belt is sleeved on the safety guardrail, and the other end of the safety protection belt is tied to the waist of a constructor.

Further, one end of the safety protection belt is provided with a lantern ring, and the lantern ring is sleeved on the safety guardrail.

In one embodiment of the invention, the vertical supports are of a steel wire rope structure, the vertical supports are vertically arranged, rotating motors are respectively arranged at the bottoms and the top ends of the vertical supports, and circumferential motion motors for driving the vertical supports to circumferentially move along the circumferential tracks are respectively arranged at the joints of the vertical supports and the circumferential tracks.

In one embodiment of the invention, a sensor for limiting the stroke of the lifting platform is arranged at the top of the vertical support.

In one embodiment of the invention, an overweight alarm is arranged on the lifting platform.

In one embodiment of the invention, a material storage box is arranged on the lifting platform.

Compared with the prior art, the lifting device for the temporary top cover of the reactor plant adopts the telescopic platform plate to deal with the influence of the raised parts such as stiffening ribs on the inner surface of the containment vessel on the operation, has convenient height adjustment and simple and stable structure, is provided with the safety protection mechanism and the overweight alarm, has the annular structure to facilitate the construction or maintenance operation of the containment vessel, and is beneficial to ensuring the personal safety of constructors; the material storage box is arranged to prevent the falling of materials in the construction process; the method can be used for the construction period of the containment and the overhaul stage after the construction is finished, and the purpose of the invention is realized.

The features of the present invention will be apparent from the accompanying drawings and from the detailed description of the preferred embodiments which follows.

Drawings

FIG. 1 is a schematic structural diagram of a lifting device for a temporary roof of a reactor building according to the present invention;

FIG. 2 is a schematic structural diagram of the elevating platform of the present invention;

fig. 3 is a schematic position diagram of the lifting device for the temporary roof of the reactor building of the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.