Separation device for gas-liquid mixture and liquid suction separation system using same

Abstract

The utility model relates to a separation device for a gas-liquid mixture and a liquid suction separation system using the separation device. The separating device for the gas-liquid mixture comprises a sealing tank (6) and a bent pipe (5) arranged in the sealing tank, a feeding port (16) is formed in the side face of the sealing tank, a discharging port (17) is formed in the side face or the top face of the sealing tank, the horizontal position of the discharging port is higher than that of the feeding port, one end of the bent pipe is communicated with the discharging port, and the other end of the bent pipe is communicated with the sealing tank. The other end of the bent pipe is in a non-fixed free state and an open state, the horizontal position of the other end of the bent pipe is higher than the horizontal position of the feeding port, a liquid discharging port (18) is formed in the side face or the bottom face of the sealing tank, and the horizontal position of the liquid discharging port is lower than the horizontal position of the feeding port. The separation system comprises a liquid collecting and conveying device, the separation device for the gas-liquid mixture and a suction device, the collecting and conveying device is communicated with a feeding port of the sealing tank in a sealed mode, and the suction device is communicated with a discharging port of the sealing tank in a sealed mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of separation device for gas-liquid mixture and the liquid suction separation system using the separation device. BACKGROUND

[0002] There are various methods for separating gas-liquid mixture, such as gravity separation method, centrifugal separation method, mass separation method, etc., and various devices are used. Mass separation method separates gas and liquid according to the density difference under different conditions using a centrifuge, etc. These methods can be selected and used according to specific conditions and needs, and these methods can be used alone or in combination to achieve the purpose of separating gas and liquid.

[0003] Patent document CN213049965U discloses a gas-liquid mixture separation device, which includes a housing, a mixture inlet, a gas outlet and a liquid outlet, and a wire mesh layer built-in the housing. The gas outlet and the liquid outlet are arranged at opposite ends of the housing with the wire mesh layer located between them. The mixture inlet is arranged at a section of the housing between the wire mesh layer and the liquid outlet, allowing the mixture to enter the annular channel of the separation part in the housing radially. The annular channel has at least one gas outlet pipe connected to the lower space defined by the housing. The lower space is connected to the upper space defined by the housing with the wire mesh layer through the axial rising channel isolated from the annular channel. The technical concept of this patent document is to allow the gas-liquid mixture to enter the housing radially, set a gas guide plate at the inlet, and make the gas-liquid mixture flow inside the device to achieve the effect of one-time separation by fully colliding the gas flow with the channel wall. The separated liquid is guided to the lower space by the liquid outlet pipe on the lower sealing plate, and the separated gas rises again into the channel formed by the inner cylinder and the inverted cone from the gas outlet pipe on the lower sealing plate to achieve secondary separation. Although this separation device can sequentially perform one-time separation and secondary separation on the gas-liquid mixture, the device and related control process are relatively complex.

[0004] Currently widely used batteries, such as cylindrical batteries, due to the process characteristics in the preparation process, some finished batteries will have electrolyte leakage under special environment or conditions, which will cause the problem of battery surface rust. In order to solve this problem, it is necessary to remove the electrolyte remaining on the surface of the battery or the groove of the component during the production process of the battery. One effective method is to use vacuum negative pressure to absorb.

[0005] The existing vacuum negative pressure separation device of electrolyte residue on the surface of the battery or the groove of the component includes a suction nozzle for sucking the electrolyte residue, a vacuum suction device including a pump, a gas source, a gas pipe, etc., a vacuum flow meter, a vacuum pressure gauge, etc. The process is roughly as follows: the electrolyte residue is sucked by the suction effect of the vacuum negative pressure; the electrolyte sucked is mixed with the suction vacuum gas, and under the action of the negative pressure, the electrolyte enters the suction pipeline, corrodes and damages or pollutes the components and instruments on the pipeline, and also has an adverse effect on the quality of the vacuum gas source. The electrolyte crystallization often causes the suction nozzle to be blocked, that is, the electrolyte crystallization formed in the suction nozzle easily blocks the suction nozzle, resulting in poor electrolyte suction effect. Content of the utility model

[0006] In view of the above-mentioned prior art, the purpose of the utility model is to provide a separation device for gas-liquid mixture with simple structure, low cost and good stability, and a liquid suction separation system using the separation device, which can collect the liquid by suction, and separate and remove the liquid by primary separation or primary separation and secondary separation, so as to avoid the liquid entering the suction gas source of the suction device.

[0007] In order to achieve the above-mentioned purpose of the utility model, the inventors of the utility model have conducted deep research and obtained the following technical scheme.

[0008] (1) A separation device for gas-liquid mixture, characterized in that it comprises a sealed tank and a bend pipe arranged in the sealed tank, wherein

[0009] The side of the sealed tank is provided with an inlet, and the side or top of the sealed tank is provided with an outlet, the horizontal position of the outlet being higher than that of the inlet,

[0010] One end of the bend pipe is sealed and communicated to the outlet, the other end of the bend pipe being in a non-fixed free state and an open state, and the horizontal position of the other end being higher than that of the inlet,

[0011] The side or bottom of the sealed tank is provided with a liquid discharge port, and the horizontal position of the liquid discharge port is lower than that of the inlet.

[0012] (2) The separation device for gas-liquid mixture according to the above-mentioned (1), characterized in that the bend pipe is a U-shaped bend pipe or a spiral coil pipe.

[0013] (3) The separation device for gas-liquid mixture according to the above-mentioned (1) or (2), characterized in that the side of the sealed tank is provided with a lower liquid level meter and an upper liquid level meter.

[0014] (4) A liquid suction separation system, characterized in that it comprises

[0015] liquid collection and delivery device;

[0016] the gas-liquid mixture separation device according to any one of (1) to (3) above; and

[0017] suction device,

[0018] wherein the liquid collection and delivery device is in sealed communication with a feed inlet of a sealed tank of the gas-liquid mixture separation device,

[0019] the suction device is in sealed communication with a discharge outlet of the sealed tank.

[0020] (5) The liquid suction and separation system according to (4) above, characterized in that the liquid is battery electrolyte.

[0021] (6) The liquid suction and separation system according to (4) or (5) above, characterized in that the suction device comprises suction gas and a suction power device.

[0022] (7) The liquid suction and separation system according to (4) or (5) above, characterized in that the liquid collection and delivery device comprises a suction nozzle for sucking liquid, a first suction pipeline, a valve installed in the first suction pipeline, and a compressed gas device for cleaning the suction nozzle and its delivery pipeline, and a valve installed in the delivery pipeline.

[0023] (8) The liquid suction and separation system according to (4) or (5) above, characterized in that a delivery detection device is arranged between the separation device and the suction device.

[0024] (9) The liquid suction and separation system according to (8) above, characterized in that the delivery detection device comprises a second suction pipeline, and a flow meter and a pressure gauge installed in the second suction pipeline.

[0025] (10) The liquid suction and separation system according to (8) above, characterized in that a gas filter is arranged between the separation device and the delivery detection device.

[0026] Inventive effects

[0027] The gas-liquid mixture separation device and the liquid suction and separation system using the same can provide the advantages of simple structure, low cost, and good stability, can separate and remove the liquid after suction and collection, one-stage separation, or one-stage and two-stage separation, and thus avoid the liquid from entering the suction gas source of the suction device. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic configuration diagram showing one example of a separation device for a gas-liquid mixture according to a first embodiment of the present application.

[0029] Figure 2 is a schematic configuration diagram showing one example of a liquid suction separation system according to a second embodiment of the present application. DETAILED DESCRIPTION

[0030] The specific embodiments and examples of the present application will be described in detail below with reference to the accompanying drawings. The described embodiments and examples are merely illustrative, and various modifications can be made. In addition, the drawings disclosed in the present specification are schematic and not necessarily to scale. The dimensions of the drawings are not necessarily consistent with the actual dimensions.

[0031] (First Embodiment)

[0032] The first embodiment of the present application is a separation device for a gas-liquid mixture, characterized by comprising: a sealed tank, and a bend pipe provided in the sealed tank, wherein

[0033] The side surface of the sealed tank is provided with an inlet, and the side surface or the top surface of the sealed tank is provided with an outlet, the horizontal position of the outlet being higher than the horizontal position of the inlet,

[0034] One end of the bend pipe is sealed and communicated to the outlet, the other end of the bend pipe being in a non-fixed free state and an open state, and the horizontal position of the other end (hereinafter sometimes referred to as "free end") being higher than the horizontal position of the inlet,

[0035] The side surface or the bottom surface of the sealed tank is provided with a liquid discharge port, the horizontal position of the liquid discharge port being lower than the horizontal position of the inlet.

[0036] The sealed tank has the feature of being sealed without gas leakage. In the case where the sealed tank is filled with a gas-liquid mixture, since the gas and the liquid in the gas-liquid mixture have different densities, the density of the liquid is significantly higher than that of the gas, and therefore, after a period of standing, the liquid will settle to the bottom of the sealed tank based on the action of gravity, and the gas will be located in the internal space of the sealed tank above the upper surface of the liquid. In this way, the bottom of the sealed tank is filled with the liquid, and the internal space of the sealed tank above the upper surface of the liquid is filled with the gas. Moreover, the gas can enter the interior of the bend pipe through the opening of the free end of the bend pipe and flow to the outlet. In order to maintain the stability and gentleness of the gas flow, the bend pipe is, for example, a U-shaped bend pipe or a spiral coil, preferably a symmetrical U-shaped bend pipe or a spiral coil, etc.

[0037] The one end of the elbow pipe is usually sealed and communicated to the discharge port via a pipe connector, so that the elbow pipe and the pipe connector can be replaced respectively.

[0038] The material of the elbow pipe is not particularly limited, and can be, for example, stainless steel, high-strength plastic, or composite material, as long as it can resist acid solution, alkaline solution, or organic solvent, etc.

[0039] According to the actual needs of the feeding amount of the gas mixture and the discharge amount of the gas, the feeding port and the discharge port can be two or more, respectively.

[0040] The feeding port is used to introduce liquid into the sealed tank. The height of the feeding port can be adjusted according to the content ratio of the liquid and the gas in the gas-liquid mixture and the suction gas flow, etc., and can be arranged at a position at 2 / 3 or more and 4 / 5 or less of the height of the sealed tank.

[0041] Valves are installed on the outside of the feeding port, the outside of the discharge port, and the outside of the liquid discharge port. In the case of using the separation device for decompression suction or vacuum suction, the above-mentioned valves are preferably pneumatic valves.

[0042] In order to timely monitor the change of the amount of liquid in the sealed tank, lower and upper liquid level meters are preferably installed on the side of the sealed tank. When the liquid in the sealed tank accumulates to a certain extent, the upper liquid level meter is triggered, the valve at the liquid discharge port is opened, and the liquid in the sealed tank is discharged through the liquid discharge port. As the liquid is discharged, the liquid in the sealed tank decreases until the lower liquid level meter is triggered, the valve at the liquid discharge port is closed, and the liquid discharge is completed.

[0043] In order to make the liquid content in the gas flowing into the inside of the elbow pipe and to the discharge port as little as possible, the vertical distance between the feeding port and the opening of the free end of the elbow pipe is preferably 3 cm or more. The upper limit of the vertical distance is not particularly limited, as long as the size of the sealed tank can accommodate the elbow pipe, which can be, for example, 20 cm.

[0044] The shape of the sealed tank is not particularly limited, and can be, for example, a cylindrical container, a square container, or an irregularly shaped container, etc.

[0045] The material of the sealed tank is not particularly limited, and can be, for example, stainless steel, high-strength plastic, or composite material, as long as it can resist acid solution, alkaline solution, or organic solvent, etc. The sealed tank can also have a lining that can resist acid solution, alkaline solution, or organic solvent, etc.

[0046] The gas-liquid mixture separation device of the embodiment can be used to separate various gas-liquid mixtures, such as a gas-liquid mixture formed by an acidic solution, an alkaline solution or a neutral solution and an inert gas such as air or nitrogen.

[0047] Depending on the type and physical and chemical properties of the liquid, the material of the sealed tank, the bend, the conveying pipeline and the instrument, and / or the inner liner thereof needs to be selected accordingly to avoid corrosion or contamination by the liquid.

[0048] The gas-liquid mixture separation device of the embodiment can be used to separate a mixture of a battery electrolyte and air, i.e., used as a battery electrolyte separation device. The method of using the separation device is as follows: the electrolyte remaining on the surface of the battery or in the groove of the component is sucked by the suction nozzle through suction negative pressure, the gas-liquid mixture containing the sucked electrolyte enters the feeding section suction pipeline (hereinafter referred to as "first suction pipeline") and reaches the sealed tank through the feeding port, the gas-liquid mixture in the sealed tank is separated so that the separated liquid falls to the bottom of the tank body, the separated gas enters the discharging section suction pipeline (hereinafter referred to as "second suction pipeline") through the free end of the bend and the discharging port of the sealed tank, and the separated gas can also enter the gas filter through the free end of the bend and the discharging port of the sealed tank so that the liquid molecules in the gas are further filtered and then enter the second suction pipeline. In addition, after the electrolyte is sucked by the suction nozzle, the suction nozzle is preferably automatically cleaned by blowing the suction nozzle with compressed gas.

[0049] In addition, the above-mentioned battery can be a primary battery or a secondary battery. The secondary battery is not particularly limited and can be a lithium ion secondary battery, a nickel-hydrogen secondary battery, a nickel-cadmium secondary battery, a lead-acid secondary battery, etc.

[0050] Figure 1 is a schematic structural view showing one example of the gas-liquid mixture separation device of the first embodiment of the present application. As shown in Figure 1 The example separation device includes a sealed tank 6 and a bend 5 arranged in the sealed tank 6. The sealed tank 6 is provided with a lower liquid level meter and an upper liquid level meter, and is provided with a feeding port 16, a discharging port 17 and a liquid discharge port 18.

[0051] (Second Embodiment)

[0052] The second embodiment of the present application is a liquid suction separation system, characterized in that it includes: a liquid collecting and conveying device; the gas-liquid mixture separation device of the first embodiment; and a suction device, wherein the collecting and conveying device is in sealed communication with the feeding port of the sealed tank of the gas-liquid mixture separation device, and the suction device is in sealed communication with the discharging port of the sealed tank.

[0053] The liquid suction separation system can be used for an acidic solution, an alkaline solution or a neutral solution, such as a battery electrolyte. The battery electrolyte varies with the type of battery, such as an acidic electrolyte for a lead-acid battery, an alkaline solution for a nickel-cadmium battery, and an organic solvent for a lithium-ion battery.

[0054] Depending on the type and physical and chemical properties of the liquid, the material of the sealed tank, the elbow, the conveying pipeline, the instrument, and / or the inner liner thereof needs to be selected accordingly to avoid corrosion or contamination by the liquid.

[0055] The battery can be a primary battery or a secondary battery. The secondary battery is not particularly limited and can be a lithium-ion secondary battery, a nickel-hydrogen secondary battery, a nickel-cadmium secondary battery, a lead-acid secondary battery, or the like.

[0056] The battery is not particularly limited in shape and can be a cylindrical battery, a square battery, an irregularly shaped battery, or the like.

[0057] The liquid collection and conveying device generally comprises a suction nozzle for sucking the liquid, a first suction pipeline, a valve, such as a pneumatic valve, installed in the first suction pipeline, and preferably a compressed gas device for cleaning the suction nozzle and a conveying pipeline thereof, and a valve, such as a pneumatic valve, and a pressure regulating valve installed in the conveying pipeline. After the suction nozzle sucks the electrolyte and conveys it to the sealed tank of the gas-liquid mixture separation device via the first suction pipeline, the valve in the first suction pipeline is closed, the first suction pipeline to the suction nozzle is disconnected, and the liquid suction stops. Then, the compressed gas device is opened to blow the suction nozzle with compressed gas, and the suction nozzle is automatically cleaned. The compressed gas device comprises compressed gas and a power device, such as a vacuum pump or a negative pressure pump. The compressed gas can be air or an inert gas, such as nitrogen, and is generally air.

[0058] In the collection and conveying device, the valve in the first suction pipeline is opened, the suction nozzle sucks the liquid and the liquid is sucked into the first suction pipeline, and enters the sealed tank of the gas-liquid mixture separation device via the inlet of the sealed tank, and the liquid is separated by the gas-liquid mixture separation device, i.e., in the sealed tank, the liquid in the gas-liquid mixture is separated from the gas, and the separated liquid falls to the bottom of the sealed tank, and the internal space of the sealed tank above the upper surface of the liquid is filled with the separated gas.

[0059] In the collection and conveying device, the ratio of the liquid and the gas in the gas-liquid mixture is generally 1:1 to 1:4 by mass, and the ratio of the liquid and the gas in the gas-liquid mixture of the battery electrolyte and air is generally 1:2 to 1:4 by mass.

[0060] The details of the separation device for the gas-liquid mixture used in the liquid suction separation system are described in the first embodiment.

[0061] The suction device comprises a suction gas and a suction power device such as a vacuum pump, a negative pressure pump or a vacuum generator. The suction gas can be air or an inert gas such as nitrogen, and is usually air. The vacuum source of the vacuum generator is usually compressed air.

[0062] In the liquid suction separation system, a delivery detection device is arranged between the separation device and the suction device, which can comprise a second suction pipeline and a flow meter, a pressure gauge and / or a valve such as a pneumatic valve installed in the second suction pipeline. It is preferred that a gas filter is arranged between the separation device and the delivery detection device for secondary separation, i.e. in the case of a gas filter, the gas separated from the sealed tank enters the gas filter through the other end of the elbow and the discharge port of the sealed tank, so that the liquid molecules in the gas are further filtered, i.e. the liquid is subjected to secondary separation, to prevent residual electrolyte from being sucked into the subsequent second suction pipeline, thereby ensuring the cleanliness of the suction device and the gas source. The gas filter is preferably an air filter. The air filter can be an SMC air filter standard part, or other brands of air filters can be used instead.

[0063] When the liquid in the sealed tank accumulates to a certain extent, the upper liquid level meter is triggered, the valve at the liquid discharge port is opened, and the liquid in the sealed tank is discharged through the liquid discharge port. As the liquid is discharged, the liquid in the sealed tank decreases until the lower liquid level meter is triggered, the valve at the liquid discharge port is closed, and the liquid discharge is completed.

[0064] The flow meter and the pressure gauge in the second suction pipeline measure the flow and pressure of the suction gas such as air, and the valve or the flow meter in the second suction pipeline adjusts the flow and pressure of the suction gas.

[0065] According to the type and physical and chemical properties of the liquid, the parameters of the flow meter and the pressure gauge are respectively set within a certain range. When the actual value of the parameter is lower than the set value, the valve in the first suction pipeline is closed, the first suction pipeline is disconnected, and the liquid suction is stopped at this time. The valve in the delivery pipeline of the compressed gas device is opened, and the compressed gas device is started to blow compressed gas to the suction nozzle, so that the suction nozzle is automatically cleaned. In addition, the pressure regulating valve in the delivery pipeline of the compressed gas device can adjust the pressure of the compressed gas, so as to adjust the blowing intensity of the suction nozzle.

[0066] The suction effect of the liquid is related to the shape of the suction nozzle, the aperture of the suction nozzle, the position of the suction nozzle from the liquid surface, and is also closely related to the vacuum air flow, the vacuum pressure, and the vacuum degree used during suction, so the flow meter and the pressure gauge are arranged on the second suction pipeline to control the suction effect by detecting the vacuum air flow and the vacuum pressure.

[0067] Figure 2 is a schematic configuration diagram showing one example of the liquid suction separation system of the second embodiment of the present application. The liquid suction separation system of the example is configured to suction the electrolyte remaining on the surface of the battery or the groove of the member by vacuum negative pressure and separate the suctioned electrolyte from the vacuum air for suction through the sealed tank, the electrolyte is collected at the bottom of the sealed tank, and the air in the sealed tank is caused to flow into the air filter and the second suction pipeline through the elbow. The air filter used is a standard part of the air filter produced by SMC Company, and the air filter further filters the liquid molecules in the air separated from the gas-liquid mixture.

[0068] The electrolyte suction separation system of the example separates and collects the suctioned electrolyte, avoids the electrolyte from being sucked into the second suction pipeline, prevents the corrosion and damage of the components and instruments on the second suction pipeline, avoids the pollution of the vacuum air source, and ensures the cleanliness of the vacuum air source. In addition, the compressed air device is used to clean the suction nozzle with compressed air, which can prevent the suction nozzle from being blocked by electrolyte crystals, can automatically clean the suction nozzle, can prevent secondary pollution, and can ensure the liquid suction effect.

[0069] The electrolyte separation device of the example mainly includes a liquid suction nozzle, a compressed air device, a sealed tank, an air filter, a vacuum suction device, a vacuum flow meter, a vacuum pressure gauge, a valve, and the like. The vacuum suction is enabled or disconnected by the opening and closing of the valve or the flow meter arranged on the suction pipeline. The suction nozzle is automatically cleaned by the compressed air device using compressed air to blow the suction nozzle, and the compressed air is supplied or disconnected by the opening and closing of the valve.

[0070] (Embodiment)

[0071] As Figure 2As shown, the main components of the electrolyte suction separation system of the embodiment include: a suction nozzle 10, a first suction pipeline 21, a first pneumatic valve 7, a sealed tank 6, an elbow pipe 5, an air filter 4, a second suction pipeline 22, a vacuum flowmeter 3, a vacuum pressure gauge 2, a vacuum device 1, a compressed air device 12, a second pneumatic valve 9, a pressure regulating valve 11, and the like. The sealed tank 6 is provided with a lower liquid level gauge 14 and an upper liquid level gauge 15, and the sealed tank is provided with a feeding port 16, a discharging port 17, and a liquid discharging port 18. The air filter 4 is a standard part of the air filter produced by SMC Company. The blowing pipeline of the compressed air device 12 is connected with the first suction pipeline 21 through a three-way joint 8.

[0072] The working process of the electrolyte suction separation system is as follows: first, the vacuum device 1 is started, the first pneumatic valve 7 is opened, the residual electrolyte on the surface of the battery 19 or in the grooves of the components of the battery 19 is sucked into the first suction pipeline 21 through the suction nozzle 10, and after entering the sealed tank 6, the electrolyte is separated from the vacuum air, the separated electrolyte falls to the bottom of the sealed tank 6, and the vacuum air passes through the elbow pipe 5, the air filter 4, the second suction pipeline 22, the vacuum flowmeter 3, and the vacuum pressure gauge 2 in sequence.

[0073] When the electrolyte in the sealed tank 6 accumulates to a certain degree, the upper liquid level gauge 15 is triggered, the third pneumatic valve 13 is opened, and the electrolyte in the sealed tank 6 is discharged through the liquid discharging port 18. As the discharging proceeds, the electrolyte in the sealed tank 6 is reduced, and when the lower liquid level gauge 14 is triggered, the third pneumatic valve 13 is closed, and the discharging is completed.

[0074] The parameters of the vacuum flowmeter 3 and the vacuum pressure gauge 2 are respectively set within a certain range, when the actual values of the parameters are lower than the set values, the first pneumatic valve 7 is closed, the first suction pipeline 21 connected with the suction nozzle 10 is disconnected, at this time, the suction is stopped, and the second pneumatic valve 9 is opened, the compressed air device 12 is opened to blow the compressed air, so that the compressed air blows the suction nozzle 10 to clean the suction nozzle 10 automatically. The pressure regulating valve 11 can adjust the pressure of the compressed air from the compressed air device 12, so as to adjust the blowing strength of the suction nozzle 10.

[0075] In the embodiment, the sealed tank 6 is a first separation device, and the air filter 4 is a second separation device. The first separation and the second separation through the first separation device and the second separation device can reduce the content of the electrolyte in the second suction pipeline to below 1%.

[0076] Other advantages and improvements of the utility model will be easily thought by those skilled in the art, and thus the scope of the utility model is not limited by the above typical examples and specific details. Therefore, the utility model can be variously changed and improved without departing from the spirit or scope of the general inventive concept defined by the above description.

[0077] Industrial applicability

[0078] The liquid suction separation system can separate the liquid from the suction gas after collecting the liquid by suction and performing primary separation, or after performing primary separation and secondary separation, so that the liquid is prevented from entering the suction gas source of the suction device.

Claims

1. A separation device for gas-liquid mixtures, characterized in that, It includes: a sealed container, and a curved pipe disposed within the sealed container, wherein, The sealed container has a feed inlet on its side and a discharge outlet on its side or top. The discharge outlet is positioned horizontally higher than the feed inlet. One end of the bend is sealed and connected to the outlet, while the other end of the bend is in a free and open state, and its horizontal position is higher than that of the inlet. The sealed container has a drain port on its side or bottom, and the horizontal position of the drain port is lower than the horizontal position of the feed port.

2. The gas-liquid mixture separation device according to claim 1, characterized in that, The bend is either a U-shaped bend or a spiral coil.

3. The gas-liquid mixture separation device according to claim 1 or 2, characterized in that, The sealed container is equipped with a lower level gauge and an upper level gauge on its side.

4. A liquid suction and separation system, characterized in that, It includes: Liquid collection and transportation device; Separation apparatus for gas-liquid mixtures according to any one of claims 1 to 3; and Suction device, The collection and conveying device is sealed and connected to the inlet of the sealed tank of the gas-liquid mixture separator. The suction device is in sealed connection with the outlet of the sealed container.

5. The liquid suction and separation system according to claim 4, characterized in that, The liquid is a battery electrolyte.

6. The liquid suction and separation system according to claim 4 or 5, characterized in that, The suction device includes a suction gas and a suction power device.

7. The liquid suction and separation system according to claim 4 or 5, characterized in that, The collection and delivery device includes: a suction nozzle for absorbing liquid, a first suction line, a valve installed in the first suction line, a compressed gas device and its delivery line for cleaning the suction nozzle, and a valve installed in the delivery line.

8. The liquid suction and separation system according to claim 4 or 5, characterized in that, A conveying detection device is provided between the separation device and the suction device.

9. The liquid suction and separation system according to claim 8, characterized in that, The delivery detection device includes a second suction pipe and a flow meter and a pressure gauge installed in the second suction pipe.

10. The liquid suction and separation system according to claim 8, characterized in that, A gas filter is provided between the separation device and the conveying and detection device.

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