CN210372880U

CN210372880U - Centralized argon supply device for nuclear island welding

Info

Publication number: CN210372880U
Application number: CN201921223957.7U
Authority: CN
Inventors: 黄超强; 梁业隆; 林涛; 汤顺意; 孟智佳; 侯建威; 王烈; 罗勇
Original assignee: China Energy Engineering Group Guangdong Power Engineering Co ltd
Current assignee: China Energy Engineering Group Guangdong Power Engineering Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-04-21
Anticipated expiration: 2029-07-31

Abstract

The utility model provides a nuclear island welded concentrates and supplies argon device, fixes liquid argon jar outside the nuclear island factory building, places the distributor in the nuclear island factory building, communicates distributor and each welding operation point through many gas-supply pipes, opens liquid argon jar and distributor, and liquid argon jar carries to the distributor through the gas-supply line after converting inside liquid argon to gaseous state argon, carries respectively to corresponding welding operation point in by many gas-supply pipes in by the distributor again to weld the activity. Because of the welding activity that a plurality of welding operation points just can be realized to single liquid argon jar, avoid using a plurality of argon gas cylinders, consequently effectively avoid the more problem of surplus accumulation in a plurality of argon gas cylinders, guarantee the consumption argon gas of at utmost, reduced the number of times of changing the argon gas cylinder, the rate of utilization of argon gas has been improved, the economic cost of argon gas loss has been reduced, and owing to realized liquid argon jar at present after the gas supply, consequently directly reduced the artifical input of transport argon gas cylinder, the cost of labor has been saved.

Description

Centralized argon supply device for nuclear island welding

Technical Field

The utility model relates to a concentrated argon supply device for nuclear island welding.

Background

At present, the welding activity in the nuclear island factory building all adopts the manual work to carry the argon gas cylinder to the construction site and fixes the ligature, communicates the argon gas cylinder with corresponding welding operation point through the gas-supply pipe afterwards to welding operation carries out. However, the welding activities in the existing nuclear island plants have disadvantages: 1. in the aspect of economy, according to the requirement of a welding process, in order to ensure the purity of each argon bottle, the argon in the argon bottle cannot be completely used up, the residual pressure which is more than or equal to 0.5MPa must be reserved, the welding operation points on a nuclear island are very many, the required argon amount is large, and a certain residual pressure needs to be reserved in each argon bottle, so that the argon residues of all the argon bottles are accumulated very much, which is a huge economic loss, and in addition, because the argon bottles need to be carried manually, a large number of argon bottles need to be provided with more carriers, so that the labor cost is high; 2. in the aspect of work efficiency, due to the fact that system pipelines in a nuclear island factory building are complex and complicated, and channels in rooms are narrow, when argon bottles are conveyed manually, actions are inconvenient, conveying efficiency is low, and the argon bottles are hard to move upstairs and downstairs, and the welding work efficiency is affected due to the fact that argon is not supplied timely due to the conveying problem; 3. in the aspect of safety, the argon bottle is manually carried in the nuclear island plant, so that the risks of collision, collapse of the gas bottle and gas leakage and suffocation of personnel in the same trip are increased, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can improve argon gas rate of utilization, reduce artifical input and avoid the concentrated argon supply device of nuclear island welded of potential safety hazard.

A nuclear island welded concentrates and supplies argon device, including liquid argon jar and the distributor that can convert liquid argon into gaseous state argon, liquid argon jar passes through gas-supply line and distributor intercommunication.

A nuclear island welded concentrates and supplies argon device, fix liquid argon jar outside the nuclear island factory building, place the distributor in the nuclear island factory building, through many gas-supply pipes with distributor and each welding operation point intercommunication, open liquid argon jar and distributor, liquid argon jar carries to the distributor through the gas-supply line after becoming gaseous state argon with inside liquid argon, carries respectively to corresponding welding operation point in by many gas-supply pipes by the distributor again to weld the activity. The welding activities of a plurality of welding operation points can be realized by a single liquid argon tank, and a plurality of argon bottles are avoided, so that the problem of more accumulated allowance in the plurality of argon bottles is effectively avoided, the argon is consumed to the maximum extent, the times of replacing the argon bottles are reduced, the utilization rate of the argon is improved, and the economic cost of argon loss is reduced; because the argon bottle is prevented from being carried manually, the problem of communication and coordination in conveying the argon bottle is reduced, a worker can immediately carry out welding operation only by communicating the argon bottle with the nearest distributor through the gas conveying pipe, and the welding efficiency is greatly improved; in addition, because the argon bottle is prevented from being manually carried, the manual safety is effectively ensured, and the potential safety hazard is avoided.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the schematic diagram of the structure of the buffer tank of the present invention.

Fig. 3 is a schematic view of the distributor of the present invention.

Detailed Description

The utility model provides a concentrated argon supply device of nuclear island welding, as shown in figure 1, includes liquid argon jar 1 and distributor 2 that can convert liquid argon into gaseous argon, liquid argon jar 1 passes through the gas line and communicates with distributor 2. The liquid argon tank 1 is in an ultrahigh pressure state, and after a valve on the liquid argon tank 1 is opened, liquid argon in the liquid argon tank 1 is changed into gaseous argon after passing through the valve due to the influence of gas pressure difference, and the gaseous argon is continuously transmitted in a form of the gaseous argon.

Still be provided with buffer tank 3 between liquid argon jar 1 and the distributor 2, all communicate through the gas line between buffer tank 3 and the liquid argon jar 1 and between buffer tank 3 and the distributor 2. Argon gas that comes out in the liquid argon jar 1 stores in buffer tank 3, by buffer tank 3 entering distributor 2 again, through setting up buffer tank 3, can satisfy the welding demand when changing liquid argon jar 1, through the argon gas of buffer tank 3 interior buffer memory, guarantees to weld normally going on, improves welding operation's efficiency.

As shown in fig. 2, the buffer tank 3 includes a buffer tank body 4, a threaded connector 5 communicated with the inside of the buffer tank body 4 is arranged on one end face of the buffer tank body 4, the threaded connector 5 is connected with the first valve 6 through threaded fit, and the first valve 6 is convenient to disassemble and assemble by arranging the threaded connector 5. The first valve 6 is a needle valve.

As shown in fig. 3, the distributor 2 includes a horizontally disposed distributor box 7, the distributor box 7 is provided with an air inlet 8 and a plurality of air outlets, and a second valve 9 is connected to the plurality of air outlets. The buffer tank 3 is communicated with an air inlet 8 on the distributor 2 through an air pipeline, a welding operation point is connected with a second valve 9 on the distributor 2 through the air pipeline, and after the second valve 9 is opened, air transmission can be realized to perform welding activities. The second valve 9 is a needle valve. The air inlet 8 may be provided at the bottom of the dispenser housing 7 and the plurality of air outlets may be provided at intervals at the top of the dispenser housing 7, as shown in this embodiment.

The distributor 2 further comprises a bearing frame 10 for supporting the distributor box 7 so that the distributor box 7 can be placed in the nuclear island building smoothly. The loading ledges 10 may be made of angle iron.

A ceiling 11 for shielding the distributor box 7 is also arranged above the distributor box 7, so that the distributor box is convenient to rain and sun. The ceiling 11 may be formed by bending a sheet iron or the like into a V shape.

Claims

1. A concentrated argon supply device for nuclear island welding is characterized in that: including liquid argon jar (1) and distributor (2) that can convert liquid argon into gaseous argon, liquid argon jar (1) passes through the gas line and communicates with distributor (2).

2. The concentrated argon supply device for nuclear island welding according to claim 1, wherein: still be provided with between liquid argon jar (1) and distributor (2) buffer memory jar (3), all communicate through the gas line between buffer memory jar (3) and liquid argon jar (1) and between buffer memory jar (3) and distributor (2).

3. The concentrated argon supply device for nuclear island welding according to claim 2, wherein: the buffer tank (3) comprises a buffer tank body (4), a threaded connector (5) communicated with the inside of the buffer tank body (4) is arranged on one end face of the buffer tank body (4), and the threaded connector (5) is connected with a first valve (6) in a threaded fit mode.

4. The concentrated argon supply device for nuclear island welding according to any one of claims 1 to 3, wherein: the distributor (2) comprises a distributor box body (7) which is horizontally arranged, an air inlet (8) and a plurality of air outlets are formed in the distributor box body (7), and second valves (9) are connected to the air outlets.

5. The concentrated argon supply device for nuclear island welding according to claim 4, wherein: the dispenser (2) further comprises a carrier (10) supporting the dispenser box (7).

6. The concentrated argon supply device for nuclear island welding according to claim 5, wherein: a ceiling (11) for shielding the distributor box body (7) is also arranged above the distributor box body (7).