Apparatus for argon arc welding in a heat collecting tube

Abstract

The present application relates to argon protection chamber technical field, especially for a kind of argon arc welding argon protection chamber device in heat pipe, comprising: shell, shell is provided with working cavity;Gas regulating assembly, gas regulating assembly includes inflation mechanism and exhaust mechanism, inflation mechanism is used to fill argon into shell, exhaust mechanism is used to discharge argon from working cavity;Connecting assembly, connecting assembly includes adsorption mechanism and separation mechanism;The present application is fixed in heat pipe inner tube by adsorption mechanism when using through shell and the setting of separation mechanism in welding position forms a welding gas chamber with high concentration argon, can carry out high-quality welding to heat pipe damaged site without shaking;Simultaneously, waste gas recovery device is arranged, and waste gas after reaction is recycled, so that welder does not contact with argon in the whole process, and health diseases caused by long-term contact with argon will not be generated, and the concept of people-oriented is embodied.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of argon protection chamber, in particular to an argon arc welding argon protection chamber device in a heat collecting pipe. BACKGROUND

[0002] The photo-thermal power generation is to convert the light reflected by the mirror field into heat energy, which needs to be completed by the heat collecting pipe and the mirror field. After the heat collecting pipe is used for a long time, the cracks may occur in the pipe due to the long-term cold and hot alternation. At present, the artificial argon arc welding is usually used to weld and repair the cracks. In the argon arc welding, multiple people need to work together, and in order to ensure the welding repair quality of the heat collecting pipe, the flow rate of argon is usually increased, which may cause the health diseases such as silicosis and eye damage of the welder after long-term contact with argon. Therefore, it is very important to isolate the welder and argon from each other during the argon arc welding. SUMMARY

[0003] The present application aims to provide an argon arc welding argon protection chamber device in a heat collecting pipe to solve the problems in the background.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme.

[0005] An argon arc welding argon protection chamber device in a heat collecting pipe comprises:

[0006] A shell, which is provided with a working cavity;

[0007] A gas adjusting assembly, which comprises a gas filling mechanism and a gas discharging mechanism, the gas filling mechanism is used for filling argon into the shell, and the gas discharging mechanism is used for discharging argon from the working cavity; and

[0008] A connecting assembly, which comprises an adsorbing mechanism and a separating mechanism, the adsorbing mechanism is used for adsorbing the shell to the inner pipe of the heat collecting pipe, and the separating mechanism is used for separating the space on both sides of the welding torch after the shell is sealed by the adsorbing mechanism, so as to reduce the amount of argon filled by the gas filling mechanism.

[0009] Preferably, the shell is provided with a welding torch groove, which is used for connecting the working cavity with the outside.

[0010] Preferably, the gas filling mechanism comprises a connecting mouth, a one-way air valve and a position detector, the connecting mouth is arranged on the side wall of the shell, the one-way air valve is arranged on the connecting mouth, and the position detector is used for detecting the position of the welding torch.

[0011] Preferably, a plurality of connecting mouths are arranged, the one-way air valves are arranged correspondingly to the connecting mouths, and the position detector is used for detecting the position of the welding torch so as to open the corresponding one-way air valve.

[0012] Preferably, the exhaust mechanism comprises a partition plate, an exhaust pipe, an exhaust pump and a waste gas pipe, the partition plate is arranged inside the working cavity, the partition plate divides the working cavity into a welding cavity and an exhaust cavity, the exhaust pipe is connected to the shell and the partition plate at two ends respectively, the exhaust pump is connected to the exhaust pipe and the waste gas pipe at two ends respectively, and the waste gas pipe is connected to an external gas tank.

[0013] Preferably, the shell is provided with an adsorption cavity, the adsorption cavity is provided with an air outlet hole, the adsorption mechanism comprises a suction cup, a sealing block, a one-way air valve two and a spring, the suction cup is connected to the shell, one end of the suction cup is connected to the adsorption cavity, the sealing block is movably inserted into the adsorption cavity, the spring is connected to the adsorption cavity and the sealing block at two ends respectively, the one-way air valve two is connected to the sealing block, the sealing block is provided with a pressure relief hole, and the pressure relief hole is used to connect the inside of the suction cup and the outside when the sealing block is pulled.

[0014] Preferably, the partition mechanism comprises a sliding rail, a mounting block, a partition block, an air bag and an inflator, the sliding rail is arranged on both sides of the welding gun slot, the mounting block is connected to the sliding rail, the partition block is symmetrically arranged on both sides of the mounting block, the air bag is arranged inside the partition block, the air bag is used to expand to ensure the air tightness of the air chamber during welding, and the inflator is used to inflate the air bag.

[0015] Preferably, the partition block is provided with a through hole, and the through hole is used to limit the expansion direction of the air bag.

[0016] Preferably, the inner side of the mounting block is provided with a sealing sleeve, and the sealing sleeve is used to prevent the overflow of argon gas through the gap between the mounting block and the welding gun.

[0017] Preferably, the shell is provided with an observation window, and the observation window is used to observe the welding position during welding.

[0018] Compared with the prior art, the beneficial effects of the present application are that: in use, the shell is fixed in the inner tube of the heat collecting pipe through the adsorption mechanism, and a welding air chamber with high concentration of argon gas is formed at the welding position through the arrangement of the shell and the partition mechanism, so that high-quality welding can be performed on the damaged part of the heat collecting pipe without shaking; at the same time, the waste gas recovery device is arranged to recover the waste gas after reaction, so that the welder does not come into contact with argon gas in the whole process, and health diseases caused by long-term contact with argon gas are avoided, which embodies the people-oriented concept of the company. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a cross-sectional structure schematic view of the present application;

[0020] Figure 2 The internal structure diagram of the partition block of the present application;

[0021] Figure 3 The cross-sectional structure diagram of the present application (omitting the air bag, the hollow arrow in the figure is the gas flow direction);

[0022] Figure 4 The isometric structure diagram of the shell of the present application;

[0023] Figure 5 The front view structure diagram of the shell of the present application;

[0024] Figure 6 The Figure 5 The local enlarged structure diagram of the A area (the gap is enlarged in the figure to show the difference between the parts).

[0025] In the figure: 1 shell, 2 working cavity, 3 welding gun slot, 4 connecting nozzle, 5 one-way air valve I, 6 position detector, 7 partition plate, 8 exhaust pipe, 9 air pump, 10 exhaust pipe, 11 welding cavity, 12 exhaust cavity, 13 adsorption cavity, 14 air outlet, 15 suction cup, 16 sealing block, 17 one-way air valve II, 18 spring, 19 sliding rail, 20 mounting block, 21 partition block, 22 air bag, 23 inflator, 24 sealing sleeve, 25 observation window, 1601 pressure relief hole, 1501 sealing strip, 100 welding gun, 101 inner tube of heat collecting tube. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-6 , the present application provides a technical solution:

[0028] An argon arc welding argon protection chamber device for inner tube of heat collecting tube, as shown in the description attached Figure 1 , comprising:

[0029] The shell 1 is used for mounting other parts of the present application, and the shell 1 is provided with a working cavity 2 for preliminarily isolating the working environment from the outside air; the shell 1 is provided with a welding gun slot 3 for inserting a welding gun 100 for argon arc welding, and the welding gun slot 3 is also used for connecting the working cavity 2 with the outside;

[0030] The gas adjusting assembly comprises a gas charging mechanism and a gas discharging mechanism, the gas charging mechanism is used for charging argon into the shell 1, and the gas discharging mechanism is used for discharging argon from the working cavity 2;

[0031] The gas charging mechanism comprises a connecting nozzle 4, a one-way air valve 5 and a position detector 6, the connecting nozzle 4 is fixedly connected to the side wall of the shell 1, the connecting nozzle 4 is used for mounting the one-way air valve 5, the one-way air valve 5 is arranged on the connecting nozzle 4, the one-way air valve 5 is used for enabling the argon to only move into the working cavity 2, and the position detector 6 is used for detecting the position of the welding gun 100, the position detector 6 is symmetrically and equidistantly arranged on both sides of the welding gun groove 3, the position detector 6 is an XKC-KL200-V type infrared distance measuring sensor produced by Shenzhen Xingkechuang Technology Co., Ltd., and the corresponding one-way air valve 5 is opened after the position detector 6 detects that there is an obstruction; the connecting nozzle 4 is provided with a plurality of connecting nozzles, the one-way air valve 5 is correspondingly arranged with the connecting nozzle 4, the position detector 6 is used for detecting the position of the welding gun 100 to open the corresponding one-way air valve 5, the corresponding one-way air valve 5 is controlled to make the space between the baffles 7 full of argon after the position detector 6 detects the position of the baffle 7, and the one-way air valve 5 is longitudinally provided with two groups, the upper one-way air valve 5 is used for conveying compressed air into the working cavity 2 after the reaction to discharge the argon;

[0032] The gas discharging mechanism comprises a baffle 7, a gas discharge pipe 8, a gas suction pump 9 and a waste gas pipe 10, the baffle 7 is arranged in the working cavity 2, the baffle 7 is used for dividing the working cavity 2, the baffle 7 divides the working cavity 2 into a welding cavity 11 and a gas discharging cavity 12, the welding gun 100 and the separation mechanism are arranged in the welding cavity 11, and other parts of the gas discharging mechanism except the baffle 7 are arranged in the gas discharging cavity 12, the gas discharge pipe 8 is connected to the shell 1 and the baffle 7 at two ends respectively, the gas discharge pipe 8 is a hose, a pipeline is arranged in the baffle 7, and the gas discharge pipe 8 is arranged in the pipeline, the gas suction pump 9 is connected to one end of the gas discharge pipe 8, the gas suction pump 9 is connected to the gas discharge pipe 8 and the waste gas pipe 10 at two ends respectively, the waste gas pipe 10 is used for guiding the original gas in the working cavity 2 into a waste gas tank, the waste gas pipe 10 is connected to an external gas tank, and the waste gas pipe 10 is used for storing the argon after the reaction;

[0033] The connecting assembly comprises an adsorption mechanism and a separation mechanism, the adsorption mechanism is used for adsorbing the shell 1 to the inner tube 101 of the heat collecting pipe, and the separation mechanism is used for separating the space on both sides of the welding gun 100 after the adsorption mechanism seals the shell 1, so as to reduce the amount of argon charged by the gas charging mechanism;

[0034] The shell 1 is provided with an adsorption cavity 13, which is used to cooperate with an adsorption mechanism to adsorb the shell 1 to the inner tube 101 of the heat collecting pipe. The adsorption cavity is provided with an air outlet hole 14, which is used to communicate the adsorption cavity 13 with the outside. The adsorption mechanism comprises a suction cup 15, a sealing block 16, a one-way air valve 17 and a spring 18. The suction cup 15 is used to adsorb the shell 1 to the inner tube 101 of the heat collecting pipe. The suction cup 15 is connected to the shell 1 and is provided with a sealing strip 1501 on the outside, which is used to prevent the argon gas from leaking out of the working cavity 2. One end of the suction cup 15 is connected to the adsorption cavity 13, and the sealing block 16 is movably inserted into the adsorption cavity 13. The sealing block 16 is made of hard rubber material and has an "L" shape. When it is necessary to move the sealing block 16, the user only needs to pull the shorter end of the sealing block 16 to change the connection position of the sealing block 16 and the suction cup 15. The spring 18 is a compression spring and has two ends connected to the adsorption cavity 13 and the sealing block 16, respectively. When there is no external force, the one-way air valve 17 is in butt joint with the suction cup 15. The one-way air valve 17 is connected to the sealing block 16, which is provided with a pressure relief hole 1601 for communicating the inside of the suction cup 15 with the outside when the sealing block 16 is pulled.

[0035] The separation mechanism comprises a sliding rail 19, a mounting block 20, a separation block 21, an air bag 22 and an inflator 23. The sliding rail 19 is arranged on both sides of the welding gun slot 3 and is used for sliding of the mounting block 20. The mounting block 20 is connected to the sliding rail 19 and is used for connecting the welding gun 100 and the separation block 21. The separation block 21 is symmetrically arranged on both sides of the mounting block 20. The air bag 22 is arranged in the separation block 21 and is used for inflation during welding to ensure the air tightness of the air chamber. The inflator 23 is a part outside the scope of the description and is used for inflating the air bag 22. Figure 1 The separation block 21 is provided with a through hole, which is arranged in the side wall of the separation block 21 and is used for limiting the inflation direction of the air bag 22. The inner side of the mounting block 20 is provided with a sealing sleeve 24, which is used for preventing the argon gas from overflowing through the gap between the mounting block 20 and the welding gun 100 when the welding gun 100 is inserted into the sealing sleeve 24. The shell 1 is provided with an observation window 25, which is sealed by explosion-proof glass and is used for observing the welding position during welding.

[0036] Working principle: in use, the outer glass sleeve of the damaged inner tube 101 of the heat collecting tube is taken out, then the shell 1 matched with the inner tube 101 of the heat collecting tube is selected, the shell 1 is adsorbed to the position to be welded through the adsorption mechanism, the welding gun 100 is inserted into the mounting block 20 through the sealing sleeve 24, at this time the inflator 23 is started to inflate the air bag 22, the inflated air bag 22 will expand along the through hole direction to form a closure with the partition block 21, the partition plate 7 and the side wall of the working cavity 2, then the external air pump is started to pass argon into the working cavity 2, then the damaged inner tube 101 of the heat collecting tube is continuously welded in the direction of the slide rail 19, since at this time the weld and the exhaust cavity 12 can flow out and the argon continuously enters the working cavity 2, a working environment with sufficient argon concentration is formed, when the welding is finished, the air pump 9 and the external compressed air are opened at the same time to make the gas in the working cavity 2 flow, and the reacted waste gas is connected to the external gas cylinder.

[0037] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for an argon gas protective chamber for argon arc welding inside a heat collector tube, characterized in that, include: A housing, wherein the housing is provided with a working cavity; A gas conditioning assembly, comprising an inflation mechanism and an exhaust mechanism, wherein the inflation mechanism is used to fill the housing with argon gas and the exhaust mechanism is used to exhaust the argon gas from the working chamber; as well as A connecting assembly, comprising an adsorption mechanism and a separating mechanism, wherein the adsorption mechanism is used to adsorb the shell onto the inner tube of the heat collection tube, and the separating mechanism is used to separate the space on both sides of the welding torch after the adsorption mechanism seals the shell, thereby reducing the amount of argon gas charged by the gas filling mechanism. The inflation mechanism includes a connecting nozzle, a one-way air valve, and a position detector. The connecting nozzle is disposed on the side wall of the housing, the one-way air valve is disposed on the connecting nozzle, and the position detector is used to detect the position of the welding torch. The exhaust mechanism includes a partition, an exhaust pipe, a vacuum pump, and a waste gas pipe. The partition is disposed inside the working chamber and divides the working chamber into a welding chamber and an exhaust chamber. The housing is provided with a welding gun groove, which is used to connect the working chamber with the outside. The housing has an adsorption chamber with an air outlet. The adsorption mechanism includes a suction cup, a sealing block, a one-way air valve, and a spring. The separation mechanism includes a slide rail, a mounting block, a partition block, an airbag, and an inflator. The slide rail is disposed on both sides of the welding torch slot, the mounting block is connected to the slide rail, the partition blocks are symmetrically disposed on both sides of the mounting block, the airbag is disposed inside the partition block, the airbag is used to expand during welding to ensure the airtightness of the gas chamber, and the inflator is used to inflate the airbag. The partition block is provided with a through hole, which is used to restrict the inflation direction of the airbag; A sealing sleeve is provided on the inner side of the mounting block, which is used to prevent argon gas from leaking out through the gap between the mounting block and the welding torch. The airbag is inflated by starting the inflation machine. After inflation, the airbag expands along the through hole direction, thereby closing the partition block, the partition plate and the side wall of the working chamber. Then, the external air pump is started to introduce argon gas into the working chamber. Then, the damaged inner tube of the heat collection tube is continuously welded according to the slide rail direction.

2. The device for an argon gas protective chamber for argon arc welding inside a heat collector tube according to claim 1, characterized in that: The connection nozzle is provided in several ways, and the one-way air valve is provided in a corresponding manner to the connection nozzle. The position detector is used to detect the position of the welding torch and thus open the corresponding one-way air valve.

3. The device for an argon gas protective chamber for argon arc welding inside a heat collector tube according to claim 1, characterized in that: The exhaust pipe is connected to the housing and the partition at both ends, the air pump is connected to the exhaust pipe and the waste gas pipe at both ends, and the waste gas pipe is connected to an external gas tank.

4. The argon gas protective chamber device for argon arc welding inside a heat collector tube according to claim 1, characterized in that: The suction cup is connected to the housing, one end of the suction cup is connected to the adsorption chamber, the sealing block is movably inserted into the adsorption chamber, the two ends of the spring are respectively connected to the adsorption chamber and the sealing block, the one-way air valve is connected to the sealing block, and the sealing block is provided with a pressure relief hole, which is used to connect the inside of the suction cup with the outside when the sealing block is pulled.

5. The device for an argon gas protective chamber for argon arc welding inside a heat collector tube according to claim 1, characterized in that: The housing is provided with an observation window, which is used to observe the welding position during welding.

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