Argon recovery device of medium-pressure argon pump

Abstract

The utility model relates to the technical field of gas recovery, and discloses an argon recovery device of a medium-pressure argon pump. The argon recovery device of the medium-pressure argon pump comprises a fixing frame, a motor is fixedly installed in the fixing frame, a volute is fixedly installed on the left side of the motor, a connecting pipe is fixedly installed on the left side of the volute, a sealing ring is fixedly installed on the right side of the volute, and a sealing cover is fixedly installed on the right side of the sealing ring. An oil seal is fixedly installed in the center of the sealing cover, the impeller compresses argon towards the outer side of the volute, so that the gas is exhausted from an opening in the upper end of the volute, the gas enters the gas storage tank through the tee joint after passing through the electromagnetic valve, and the controller detects the gas pressure in the tee joint. After the air pressure in the air storage tank reaches a certain degree, the air pressure in the tee joint rises, and after the air pressure in the tee joint reaches a threshold value, the controller closes the motor and the electromagnetic valve to stop conveying argon, so that the pressure of the air storage tank is prevented from being too high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas recovery technical field, concretely is a medium pressure argon pump argon recovery device. BACKGROUND

[0002] Argon is a kind of colorless, odorless monatomic gas, the density of argon is 1.4 times of air, is 10 times of helium.Argon is a kind of inert gas, does not react with other substances at normal temperature, does not dissolve in liquid metal at high temperature, can show its superiority more when welding nonferrous metal.Can be used for bulb filling and the electric arc welding of stainless steel, magnesium, aluminum etc., that is " argon arc welding ".

[0003] The existing reference announcement number for: CN203463932U Chinese practical new type patent has disclosed a kind of argon recovery device, it includes liquid argon storage tank, recovery pipeline, buffer tank, vacuum pump, condensing equipment and liquid argon tank, liquid argon storage tank bottom is communicated with liquid argon output pipeline, valve is installed on the liquid argon output pipeline, recovery pipeline one end is communicated with the top of liquid argon storage tank, the other end of recovery pipeline is communicated with the liquid argon output pipeline, recovery valve is installed on the recovery pipeline, the inlet of vacuum pump is communicated with the buffer tank in the middle of recovery pipeline, the outlet of vacuum pump is communicated with the inlet of condensing equipment, the outlet of condensing equipment is communicated with the liquid argon tank.The argon recovery device is used for the recovery of argon gas to vehicle-mounted liquid argon storage tank, has the advantages of reasonable structure, convenient to use, cost saving and avoiding pollution.

[0004] The existing argon recovery device is generally transported by gas pump, which cannot quickly close the gas pump when the internal pressure of the storage tank approaches the limit, which may cause the internal pressure of the storage tank to be too high, and has certain safety hazards, and the existing argon recovery device may leak when replacing the storage tank. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] In view of the deficiencies of prior art, the utility model provides a kind of medium pressure argon pump argon recovery device, with the advantages of avoiding that the gas tank is too high, and can prevent gas leakage when replacing storage tank, solve the above technical problems.

[0007] (II) technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: A kind of medium-pressure argon pump argon recovery device, comprising: fixed frame, fixed mounting is equipped with motor in the fixed frame, the left side of the motor is fixedly installed volute, the left side of the volute is fixedly installed with connecting pipe, the right side of the volute is fixedly installed with sealing ring, the right side of the sealing ring is fixedly installed with cover, the center of the cover is fixedly installed with oil seal, the terminal of the motor rotating shaft is fixedly installed with impeller, the top of the volute is fixedly installed with electromagnetic valve, the top of the electromagnetic valve is fixedly installed with tee, the front side of the tee is fixedly installed with rubber ring, the center of the rubber ring is installed with connecting column, the center of the connecting column is fixedly installed with controller;The volute can limit the position of gas.

[0009] As a preferred technical scheme of the utility model, the motor is fixedly connected between the fixed frames, and the rotating shaft of the motor is rotatably connected between the oil seal and the cover.

[0010] As a preferred technical scheme of the utility model, the connecting pipe is fixedly connected between the volute through bolts, and the left end of the connecting pipe is provided with a flange structure.

[0011] As a preferred technical scheme of the utility model, the left side of the cover is provided with an annular groove, the sealing ring is located between the volute and the cover, and the sealing ring is connected with the volute through bolts.

[0012] As a preferred technical scheme of the utility model, the impeller is fixedly connected with the rotating shaft of the motor in a penetrating manner, the impeller is located in the interior of the volute, and the left end of the impeller is rotatably connected with the volute.

[0013] As a preferred technical scheme of the utility model, the electromagnetic valve is fixedly connected with the volute through the flange structure, the tee is fixedly connected with the electromagnetic valve through the flange structure, the tee is in the shape of a T, and the connecting column is penetratingly installed in the branch interior of the front side of the tee.

[0014] As a preferred technical scheme of the utility model, the rubber ring is located between the tee and the connecting column, and the probe of the controller is located in the center of the tee.

[0015] Compared with the prior art, the utility model provides a kind of medium-pressure argon pump argon recovery device, with the following beneficial effects:

[0016] 1. The utility model discloses a controller's setting, and the controller is fixedly connected with the three -way through the connecting column, and the probe of controller is located the center of three -way, when the motor drives the impeller rotation in the volute, the impeller will compress argon to the volute outside, thereby make gas discharge from the opening of volute upper end, and the gas will pass through three -way and enter the inside of gas storage tank after passing through solenoid valve, and the controller can detect the gas pressure in the three -way, and the gas pressure in the three -way will increase after the gas pressure in the gas storage tank reaches a certain degree, and the controller will close the motor and solenoid valve after the gas pressure in the three -way reaches threshold value, and the delivery of argon is stopped, thereby avoiding that the gas storage tank is too high.

[0017] 2. The utility model discloses a three -way's setting, and the three -way is fixedly installed above solenoid valve, and when recycling argon, solenoid valve opens, and the argon in the volute can normally pass through solenoid valve, and solenoid valve will be closed under the control of controller after the gas pressure in the gas storage tank reaches threshold value, thereby avoiding that the volute is communicated with the outside, and the gas storage tank is located the upper end of three -way, and after the gas storage tank is filled with argon, the gas valve of gas storage tank is closed, and then is replaced, and the argon in the connecting pipe can only stay in the inside of volute and can not diffuse outward, and this mode can avoid the condition of the massive leakage of argon when replacing the gas storage tank. ACCURACY OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the motor and volute connection structure schematic diagram of the utility model;

[0020] Figure 3 It is the volute cross section structure schematic diagram of the utility model;

[0021] Figure 4 It is the three -way cross section structure schematic diagram of the utility model;

[0022] Among them: 1, fixed frame;11, motor;12, volute;13, connecting pipe;14, sealing ring;15, cover;16, oil seal;17, impeller;18, solenoid valve;19, three -way;110, rubber ring;111, connecting column;112, controller. DETAILED DESCRIPTION

[0023] The embodiment of the utility model is further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0024] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected" and "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] Please refer to Figure 1 Figure 4 In the embodiment, a medium-pressure argon pump argon recovery device, comprising: fixed frame 1, the inside of fixed frame 1 is fixedly installed motor 11, the left side of motor 11 is fixedly installed volute 12, the left side of volute 12 is fixedly installed connecting pipe 13, the right side of volute 12 is fixedly installed sealing ring 14, the right side of sealing ring 14 is fixedly installed cover 15, the center of cover 15 is fixedly installed oil seal 16, the end of motor 11 rotating shaft is fixedly installed impeller 17, the top of volute 12 is fixedly installed electromagnetic valve 18, the top of electromagnetic valve 18 is fixedly installed tee 19, the front side of tee 19 is fixedly installed rubber ring 110, the center of rubber ring 110 is inserted and installed connecting column 111, the center of connecting column 111 is fixedly installed controller 112.

[0027] ​The motor 11 is fixedly connected between the fixing frames 1, the rotating shaft of the motor 11 is rotatably connected between the oil seal 16 and the cover 15, the connecting pipe 13 is fixedly connected between the bolt and the volute 12, the left end of the connecting pipe 13 is provided with a flange structure, the left side of the cover 15 is provided with an annular groove, the sealing ring 14 is located between the volute 12 and the cover 15, the sealing ring 14 is connected with the volute 12 through the bolt, the impeller 17 is fixedly connected with the rotating shaft of the motor 11 in a penetrating manner, the impeller 17 is located in the interior of the volute 12, and the left end of the impeller 17 is rotatably connected with the volute 12, the electromagnetic valve 18 is fixedly connected with the volute 12 through the flange structure, the three-way pipe 19 is fixedly connected with the electromagnetic valve 18 through the flange structure, the three-way pipe 19 is in a "T" shape structure, the connecting column 111 is penetratingly installed in the branch on the front side of the three-way pipe 19, the rubber ring 110 is located between the three-way pipe 19 and the connecting column 111, and the probe of the controller 112 is located in the center of the three-way pipe 19.

[0028] Specifically, the fixing frame 1 can limit the relative position between the motor 11 and the volute 12, the motor 11 can drive the impeller 17 to rotate, the volute 12 can limit the position of the gas, the connecting pipe 13 can facilitate the connection between the volute 12 and the argon pipeline, the sealing ring 14 can play a sealing role, the cover 15 can close the right side of the volute 12, the oil seal 16 can facilitate the rotating shaft of the motor 11 to pass through the cover 15, the impeller 17 can compress the gas, the electromagnetic valve 18 can facilitate the closing of the gas outlet end of the volute 12, the three-way pipe 19 can facilitate the installation of the controller 112, the rubber ring 110 can play a sealing role, the connecting column 111 can limit the position of the controller 112, and the controller 112 can close the electromagnetic valve 18 and the motor 11 according to the air pressure in the three-way pipe 19.

[0029] When in use, the controller 112 is fixedly connected to the tee 19 through the connecting column 111. The probe of the controller 112 is located at the center of the tee 19. When the motor 11 drives the impeller 17 inside the volute 12 to rotate, the impeller 17 will compress the argon gas to the outside of the volute 12, so that the gas is discharged from the opening at the upper end of the volute 12. After passing through the solenoid valve 18, the gas will enter the gas storage tank through the tee 19. The controller 112 will detect the air pressure inside the tee 19. After the air pressure inside the gas storage tank reaches a certain level, the air pressure inside the tee 19 will increase. After the air pressure inside the tee 19 reaches a threshold, the controller 112 will turn off the motor 11 and the solenoid valve 18, and stop the argon The gas is transported to avoid the gas tank pressure being too high. The tee 19 is fixedly installed above the solenoid valve 18. When the argon is recovered, the solenoid valve 18 is opened, and the argon inside the volute 12 can pass through the solenoid valve 18 normally. After the air pressure inside the gas tank reaches the threshold, the solenoid valve 18 will be closed under the control of the controller 112, thereby preventing the volute 12 from communicating with the outside world. The gas tank is located at the upper end of the tee 19. After the gas tank is filled with argon, the gas valve of the gas tank is closed and then replaced. The argon inside the connecting pipe 13 can only stay inside the volute 12 and cannot diffuse outward. This method can avoid large-scale leakage of argon when replacing the gas tank.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medium-pressure argon pump argon gas recovery device, characterized in that: include: A fixed frame (1) is provided, wherein a motor (11) is fixedly installed inside the fixed frame (1), a volute (12) is fixedly installed on the left side of the motor (11), a connecting pipe (13) is fixedly installed on the left side of the volute (12), a sealing ring (14) is fixedly installed on the right side of the volute (12), a sealing cover (15) is fixedly installed on the right side of the sealing ring (14), an oil seal (16) is fixedly installed at the center of the sealing cover (15), an impeller (17) is fixedly installed at the end of the rotating shaft of the motor (11), a solenoid valve (18) is fixedly installed at the top end of the volute (12), a three-way valve (19) is fixedly installed at the top end of the solenoid valve (18), a rubber ring (110) is fixedly installed on the front side of the three-way valve (19), a connecting column (111) is inserted and installed at the center of the rubber ring (110), and a controller (112) is fixedly installed at the center of the connecting column (111).

2. The medium-pressure argon pump argon recovery device according to claim 1, characterized in that: The motor (11) is fixedly connected to the fixing frame (1), and the rotating shaft of the motor (11) is rotatably connected to the cover (15) through the oil seal (16).

3. The medium-pressure argon pump argon recovery device according to claim 1, characterized in that: The connecting pipe (13) is fixedly connected to the volute (12) via bolts, and a flange structure is provided at the left end of the connecting pipe (13).

4. The medium-pressure argon pump argon recovery device according to claim 1, characterized in that: An annular groove is provided on the left side of the sealing cover (15), and the sealing ring (14) is located between the volute (12) and the sealing cover (15). The sealing ring (14) and the volute (12) are connected by bolts.

5. The medium-pressure argon pump argon recovery device according to claim 1, characterized in that: The impeller (17) is fixedly connected to the rotating shaft of the motor (11) in an interlaced manner. The impeller (17) is located inside the volute (12), and a rotation connection is formed between the left end of the impeller (17) and the volute (12).

6. The medium-pressure argon pump argon recovery device according to claim 1, characterized in that: The solenoid valve (18) is fixedly connected to the volute (12) via a flange structure, and the tee (19) is fixedly connected to the solenoid valve (18) via a flange structure. The tee (19) is in a T-shaped structure, and the connecting column (111) is inserted and installed inside the branch on the front side of the tee (19).

7. The medium-pressure argon pump argon recovery device according to claim 1, characterized in that: The rubber ring (110) is located between the tee (19) and the connecting column (111), and the probe of the controller (112) is located at the center of the tee (19).

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