CN218237062U

CN218237062U - Helium recovery device and helium recovery system

Info

Publication number: CN218237062U
Application number: CN202222010898.3U
Authority: CN
Inventors: 来毅军
Original assignee: Sunwoda Electric Vehicle Battery Co Ltd
Current assignee: Xinwangda Power Technology Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-01-06
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a helium recovery device and helium recovery system, wherein the helium recovery device includes mixing element, returns helium subassembly and tonifying qi spare, the mixing element has the chamber of holding, the chamber of holding has first air inlet and second air inlet, first air inlet is suitable for with wait to retrieve the piece intercommunication; the helium receiving assembly comprises an air extracting piece, and the air extracting piece is arranged between the member to be recovered and the first air inlet; the gas supplementing piece is communicated with the second gas inlet and is suitable for supplementing helium gas into the accommodating cavity; the air extracting piece is provided with a recovery state for driving the helium in the piece to be recovered to be conveyed towards the accommodating cavity. In taking out the helium in with the battery through the piece of taking out gas and sending the mixing part, helium is carried for the mixing part to rethread tonifying qi piece for the helium concentration in the mixing part remains stable, makes things convenient for the helium in the mixing part to carry out reuse, avoids the helium directly to discharge, makes the helium repeatedly practical, has reduced the cost.

Description

Helium recovery device and helium recovery system

Technical Field

The utility model relates to a leakproofness detects technical field, concretely relates to helium recovery unit and helium recovery system.

Background

Helium, which is a rare gas, is a colorless and odorless inert gas, is chemically inert, and is difficult to react with other substances in a general state; helium has small molecular weight, strong diffusivity and high permeability, namely can pass through extremely small holes; the helium content in a normal air environment is very small, namely, the change of the helium concentration in the air is easy to detect.

In the production process of the square aluminum-shell battery, a helium leakage detection process is required, generally, helium is filled into the battery, a micro-leakage workpiece is detected through a helium mass spectrometer, and residual helium is exhausted to the outside through an exhaust pipeline after detection is finished.

Helium is a scarce strategic resource, the current main mode for producing helium is separation from natural gas, the extraction difficulty is high, the cost is high, and the helium is directly discharged outdoors after the helium detection is finished, so that great cost waste is caused.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem of the utility model is because among the prior art helium examines and directly discharges the helium to outdoor after accomplishing, leads to the extravagant defect of very big cost.

Therefore, the utility model provides a helium gas recovery device, include:

the mixing piece is provided with a containing cavity, the containing cavity is provided with a first air inlet and a second air inlet, and the first air inlet is suitable for being communicated with the piece to be recovered;

a helium return assembly comprising an exhaust member disposed between the member to be recovered and the first gas inlet;

the gas supplementing piece is communicated with the second gas inlet and is suitable for supplementing helium gas into the accommodating cavity;

the gas extraction piece is provided with a recovery state for driving the helium gas in the piece to be recovered to be conveyed towards the accommodating cavity.

Optionally, in the helium gas recovery apparatus, the helium recovery assembly further includes:

the vacuum tank is communicated with the piece to be recovered through a first pipeline;

retrieve the jar, retrieve the jar through the second pipeline with vacuum tank intercommunication, the piece setting of taking out gas is in on the second pipeline, it keeps away from to retrieve the jar one side of taking out gas piece pass through the third pipeline with first air inlet intercommunication.

Optionally, in the above helium recovery device, the helium recovery assembly further includes a first detection part, and the first detection part is disposed on the third pipeline and is adapted to detect a helium concentration in the mixing part.

Optionally, in the helium gas recovery device, the helium gas recovery assembly further includes a first switch member, and the first switch member is disposed on the first pipeline and is adapted to control on/off between the vacuum tank and the member to be recovered.

Optionally, the helium recovery device further includes a helium injection assembly including:

the accommodating cavity is provided with an air outlet, the pressure stabilizing tank is communicated with the first air outlet through a fourth pipeline, and one side of the pressure stabilizing tank, which is far away from the air outlet, is communicated with the piece to be recovered through a fifth pipeline;

a compressor disposed on the fourth conduit.

Optionally, in the helium recovery device, the helium injection assembly further includes a second detection part, and the second detection part is disposed on the fourth pipeline and is adapted to detect the concentration of the surge tank.

Optionally, in the helium gas recovery apparatus described above, the helium injection assembly further includes a second switch component, which is disposed on the fifth pipeline and is adapted to control the passage between the surge tank and the to-be-recovered component.

Optionally, in the helium gas recovery apparatus described above, the helium injection assembly further includes:

a sixth pipe having a third air inlet, one end of the sixth pipe communicating with the third air inlet, and the other end of the sixth pipe communicating with the surge tank;

a third switching part disposed on the sixth duct.

Optionally, the helium recovery device further includes:

one end of the seventh pipeline is communicated with the air supplementing piece, and the other end of the seventh pipeline is communicated with the first air inlet of the mixing piece;

a fourth switching piece disposed on the seventh pipe.

Optionally, the helium gas recovery device further comprises:

one end of the eighth pipeline is communicated with the piece to be recovered, and the other end of the eighth pipeline is communicated with the air supplementing piece;

a fifth switching element disposed on the eighth conduit.

The utility model provides a helium recovery system, including foretell helium recovery unit, it is the battery to treat the recovery piece.

The technical scheme provided by the utility model, following advantage has:

1. the utility model provides a helium recovery device, including mixing element, returning helium subassembly and tonifying qi spare, the mixing element has the chamber of holding, the chamber of holding has first air inlet and second air inlet, first air inlet is suitable for with wait to retrieve the piece intercommunication; the helium recovery assembly comprises an air extraction piece, and the air extraction piece is arranged between the member to be recovered and the first air inlet; the gas supplementing piece is communicated with the second gas inlet and is suitable for supplementing helium gas into the accommodating cavity; the air extracting piece is provided with a recovery state for driving the helium in the piece to be recovered to be conveyed towards the accommodating cavity.

The helium recovery device of this structure will treat that the helium in the piece of retrieving is taken out and is sent to the mixing part in through the piece of taking out gas, and the helium is carried for the mixing part to rethread tonifying qi piece for the helium concentration in the mixing part remains stable, makes things convenient for the helium in the mixing part to carry out reuse, avoids the helium direct emission, makes the helium repeatedly practical, has reduced the cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic illustration of a helium recovery system according to the present invention;

FIG. 2 is an enlarged view of a portion of circle A in FIG. 1;

description of the reference numerals:

1-a mixing part; 11-a first air inlet; 12-a second air inlet; 13-gas outlet; 14-a third air inlet;

21-a gas extraction member; 22-vacuum tank; 23-a first conduit; 24-a recovery tank; 25-a second conduit; 26-a third conduit; 27-a first detection member; 28-a first switch member;

3-a gas supplementing piece;

41-a surge tank; 42-a fourth conduit; 43-a fifth conduit; 44-a compressor; 45-a second detection member; 46-a second switching member; 47-a sixth conduit; 48-a third switching element;

5-a seventh conduit;

6-a fourth switching element;

7-an eighth conduit;

8-a fifth switching element;

9-battery.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The embodiment provides a helium recovery device, as shown in fig. 1 and fig. 2, which includes a mixing part 1, a helium returning component and an air supplementing part 3, where the mixing part 1 is a mixing tank, the mixing part 1 has a containing cavity, a first air inlet 11 is formed in the top of the containing cavity, the helium returning component includes an air pumping part 21, the air pumping part 21 is disposed between a part to be recovered and the first air inlet 11, the air supplementing part 3 is communicated with a second air inlet 12, when the concentration in the mixing tank is low, the air supplementing part 3 is used for supplementing helium to the mixing part 1, the air supplementing part is an air supplementing tank, and pure helium is provided in the air supplementing part; the gas-pumping part 21 is a vacuum pump, and the gas-pumping part 21 pumps out the gas in the part to be recovered and then conveys the gas into the mixing part 1. And recovering helium in the to-be-recovered piece, wherein the to-be-recovered piece is the battery 9 which is subjected to helium detection, and as an alternative embodiment, the to-be-recovered piece can also be a container with helium.

In practical application, will treat that the helium in the recovery piece is taken out and send to mixing element 1 in through piece 21 of taking out gas, rethread tonifying qi piece 3 carries the helium for mixing element 1 for the helium concentration in the mixing element 1 keeps stable, makes things convenient for the helium in the mixing element 1 to carry out reuse, avoids the direct emission of helium, makes the helium repeatedly practical, the cost is reduced.

As shown in fig. 1 and fig. 2, in the helium recovery device provided in this embodiment, the helium recovery assembly further includes a vacuum tank 22, a recovery tank 24, a first pipeline 23, a second pipeline 25, a third pipeline 26, a first detection piece 27 and a first switch piece 28, the vacuum tank 22 is communicated with the piece to be recovered through the first pipeline 23, the first pipeline 23 is provided with the first switch piece 28, the first switch piece 28 is an electromagnetic valve and is used for controlling on/off between the vacuum tank 22 and the piece to be recovered, the vacuum tank 22 is communicated with the recovery tank 24 through the second pipeline 25, the extraction piece 21 is disposed on the second pipeline 25, the recovery tank 24 is communicated with the mixing piece 1 through the third pipeline 26, when the extraction piece 21 is in operation, gas in the vacuum tank 22 is extracted and sent into the recovery tank 24, when the recovery tank 24 is full of gas, the gas enters the mixing piece 1, the first detection piece 27 is a concentration detector, and the first detection piece 27 is disposed on the third pipeline 26 and is used for detecting a concentration value of helium in the mixing piece.

As shown in fig. 1, the helium recovery apparatus provided in this embodiment further includes a helium injection assembly, which includes a surge tank 41, a compressor 44, a fourth pipeline 42, a fifth pipeline 43, a second detection piece 45, a second switch piece 46, a sixth pipeline 47 and a third switch piece 48, the accommodating chamber of the mixed piece 1 has an air outlet 13, the surge tank 41 is communicated with the air outlet 13 through the fourth pipeline 42, the compressor 44 is disposed on the fourth pipeline 42, the compressor 44 is used for pumping out and compressing the gas in the mixed piece 1 and then sending the gas into the surge tank 41, the second detection piece 45 is disposed on the fourth pipeline 42, the second detection piece 45 is a concentration detector and is used for detecting the concentration of helium in the surge tank 41, one side of the surge tank 41 away from the air outlet 13 is communicated with the piece to be recovered through the fifth pipeline 43, and the second switch is disposed on the fifth pipeline 43 and is used for controlling the connection and disconnection between the surge tank 41 and the piece to be recovered; the second switching member 46 is a check valve, when the concentration and pressure in the surge tank 41 reach the designated values, the second switching member 46 is opened, helium in the surge tank 41 is injected into the member to be recovered through the fifth pipe 43, the second switching member 46 can also prevent gas in the member to be recovered from flowing back into the surge tank 41, the mixing member 1 has a third air inlet 14, one end of a sixth pipe 47 is communicated with the third air inlet 14, the other end of the sixth pipe 47 is communicated with the surge tank 41, a third switching member 48 is arranged on the sixth pipe 47, and when the concentration in the surge tank 41 does not reach the set value, the third switching member is opened, so that helium in the surge tank 41 is re-input into the mixing member 1 until the concentration of helium in the surge tank 41 reaches the designated values. The helium gas of the surge tank 41 is used for the member to be recovered, and the third switching member 48 also serves to prevent the gas in the mixture member 1 from entering the surge tank 41.

In practical application, surge tank 41 communicates with gas outlet 13 through fourth pipeline 42, and compressor 44 sets up on fourth pipeline 42, compresses helium through compressor 44, further promotes the concentration of helium, and surge tank 41 communicates with third air inlet 14 through sixth pipeline 47, and when the concentration of helium does not satisfy the setting value, lets in the helium in surge tank 41 in the hybrid tank, until the helium concentration in surge tank 41 reaches the setting value, avoids influencing the accuracy that the helium detected because of the concentration is not enough.

As shown in fig. 1 and fig. 2, the helium recovery device provided in this embodiment further includes a seventh pipeline 5, a fourth switch 6, an eighth pipeline 7 and a fifth switch 8, one end of the seventh pipeline 5 is communicated with the gas supplementing member 3, the other end of the seventh pipeline 5 is communicated with the first gas inlet 11 of the mixing member 1, the fourth switch 6 is disposed on the seventh pipeline 5, the gas supplementing member 3 has pure helium therein for supplementing helium loss during the recovery process, so as to improve helium concentration in the mixing member 1, the fourth switch 6 is a one-way valve for preventing gas in the mixing member 1 from flowing back into the gas supplementing member 3, the mixing member 1 is used for mixing helium delivered by the recovery tank 24 with helium delivered by the gas supplementing member 3, one end of the eighth pipeline 7 is communicated with the member to be recovered, the other end of the eighth pipeline 7 is communicated with the gas supplementing member 3, the fifth switch 8 is disposed on the eighth pipeline 7, the fifth switch 8 is a one-way valve, when the helium recovery device is abnormal, the fifth switch 8 is opened, and the eighth switch 3 is directly injected into the helium recovering member 7 through the eighth pipeline 7.

In practical application, the two ends of the eighth pipeline 7 are respectively connected with the part to be recovered and the air supplementing part 3, the fifth switch 8 is arranged on the eighth pipeline 7, and when the helium recovery device is damaged, helium can be timely supplemented into the part to be recovered through the eighth pipeline 7, so that the leak detection work of the battery 9 can be normally operated.

The helium recovery device that this embodiment provided, through take out the helium in 21 with battery 9 and take out and send to mixing element 1 in, the rethread tonifying qi piece 3 carries the helium for mixing element 1 for the helium concentration in the mixing element 1 keeps stable, makes things convenient for the helium in the mixing element 1 to carry out reuse, avoids the direct emission of helium, makes the helium repeatedly practical, the cost is reduced.

Example 2

The present embodiment provides a helium recovery system, as shown in fig. 1 and fig. 2, including the helium recovery device of embodiment 1, and the member to be recovered is a battery 9.

The working process of the helium recovery system provided by the embodiment is as follows:

when the helium test of the battery 9 is completed, the operation of the air suction member 21 is started, the first switch member 28 is opened, the helium gas in the battery 9 returns to the flow direction to the vacuum tank 22 through the first pipe 23 due to the negative pressure, the air suction member 21 conveys the helium gas in the vacuum tank 22 into the recovery tank 24 through the second pipe 25, the helium gas enters the mixing member 1 through the third pipe 26 after the helium gas in the recovery tank 24 reaches a certain pressure, when the helium gas concentration detected by the first detection member 27 is lower than a set value, the fourth switch member 6 is opened, the helium gas in the air suction member 3 is injected into the mixing member 1 through the seventh pipe 5 until the helium gas concentration in the mixing member 1 reaches a specified value, then the fourth switch member 6 is closed, the compressor 44 starts to operate, the gas in the mixing member 1 is compressed and conveyed into the mixing tank 41 through the fourth pipe 42, when the helium gas concentration detected by the second detection member 45 does not reach the specified value, the third switch member 48 is opened, the helium gas in the pressure stabilizing tank 41 enters the mixing tank through the sixth pipe 47, the helium cycle is circulated to reach the specified value, the helium gas pressure stabilizing device is opened, the second switch 48, the helium recovery device is opened, the helium gas is returned to the helium gas to the second switch 9, the helium gas to be tested, and the helium test of the battery 9 is performed, and the helium test of the battery 9, and the battery 9 is performed, and the second switch 46, and the helium test is performed.

The battery 9 that this embodiment provided, surge tank 41 communicates with gas outlet 13 through fourth pipeline 42, compressor 44 sets up on fourth pipeline 42, compress the helium through compressor 44, further promote the concentration of helium, surge tank 41 communicates with third air inlet 14 through sixth pipeline 47, when the concentration of helium is unsatisfied the setting value, let in the helium in surge tank 41 in the hybrid tank, until the helium concentration in surge tank 41 reaches the setting value, avoid influencing the accuracy that the helium detected because of the concentration is not enough.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A helium recovery device, comprising:

a mixing element (1), the mixing element (1) having a housing chamber with a first inlet (11) and a second inlet (12), the first inlet (11) being adapted to communicate with an element to be recovered;

a helium return assembly comprising an extraction member (21), the extraction member (21) being arranged between the member to be recovered and the first gas inlet (11);

the gas supplementing piece (3), the gas supplementing piece (3) is communicated with the second gas inlet (12), and the gas supplementing piece (3) is suitable for supplementing helium to the accommodating cavity;

the gas extraction piece (21) is in a recovery state of driving helium in the piece to be recovered to be conveyed towards the accommodating cavity.

2. The helium recovery device of claim 1, wherein the helium return assembly further comprises:

a vacuum tank (22), wherein the vacuum tank (22) is communicated with the piece to be recovered through a first pipeline (23);

retrieve jar (24), retrieve jar (24) through second pipeline (25) with vacuum tank (22) intercommunication, take out gas spare (21) set up on second pipeline (25), retrieve jar (24) and keep away from one side of taking out gas spare (21) through third pipeline (26) with first air inlet (11) intercommunication.

3. Helium recovery device as in claim 2, characterized in that said helium recovery assembly further comprises a first detection member (27), said first detection member (27) being arranged on said third conduit (26) and being adapted to detect the concentration of helium inside said mixing member (1).

4. Helium recovery device as in claim 3, characterized in that said helium recovery assembly further comprises a first switching element (28), said first switching element (28) being arranged on said first duct (23) and being adapted to control the switching between said vacuum tank (22) and said element to be recovered.

5. The helium recovery device of claim 3, further comprising a helium injection assembly, the helium injection assembly comprising:

the pressure stabilizing tank (41) is provided with an air outlet (13), the pressure stabilizing tank (41) is communicated with the air outlet (13) through a fourth pipeline (42), and one side, away from the air outlet (13), of the pressure stabilizing tank (41) is communicated with the to-be-recovered part through a fifth pipeline (43);

a compressor (44), the compressor (44) being disposed on the fourth conduit (42).

6. Helium recovery device as in claim 5, characterized in that said helium injection assembly further comprises a second detection member (45), said second detection member (45) being arranged on said fourth duct (42) and being adapted to detect the concentration of said surge tank (41).

7. Helium recovery device as in claim 6, characterized in that said helium injection assembly further comprises a second switch (46), said second switch (46) being arranged on said fifth duct (43) and being adapted to control the passage of said surge tank (41) and said member to be recovered.

8. The helium recovery device of claim 7, wherein the helium injection assembly further comprises:

a sixth pipe (47), the mixing element (1) having a third air inlet (14), one end of the sixth pipe (47) being in communication with the third air inlet (14), the other end of the sixth pipe (47) being in communication with the surge tank (41);

a third switching member (48), the third switching member (48) being disposed on the sixth duct (47).

9. The helium recovery device of any of claims 1-8, further comprising:

one end of the seventh pipeline (5) is communicated with the air supplementing piece (3), and the other end of the seventh pipeline (5) is communicated with the first air inlet (11) of the mixing piece (1);

a fourth switching member (6), the fourth switching member (6) being disposed on the seventh pipe (5).

10. The helium recovery device of claim 9, further comprising:

one end of the eighth pipeline (7) is communicated with the to-be-recovered part, and the other end of the eighth pipeline (7) is communicated with the air supplementing part (3);

a fifth switching piece (8), the fifth switching piece (8) being arranged on the eighth duct (7).

11. A helium recovery system comprising a helium recovery device as claimed in any one of claims 1 to 10, the member to be recovered being a battery (9).