Gas-liquid separation device for portable oxygen production equipment

Abstract

The utility model discloses a gas-liquid separation device for portable oxygen production equipment, which comprises a gas-liquid separation pipe, a gas pump, a first gas filter, a one-way check valve, a water pump and a controller, the gas-liquid separation pipe is provided with a partition plate, and the partition plate divides an inner cavity of the gas-liquid separation pipe into a U-shaped cavity; an inlet and an air outlet are formed in the upper portions of the two ends, located on the U-shaped cavity, of the gas-liquid separation pipe respectively, a liquid outlet is formed in the bottom, the inlet is connected with a gas-liquid outlet of an electrolysis water tank of the portable oxygen generation equipment, the air outlet is connected with a first gas filter through an air pump to output airflow, and the liquid outlet is sequentially connected with a one-way check valve and a water pump. An outlet of the water pump is connected to a liquid inlet of the electrolysis water tank, a semiconductor chilling plate is arranged on the partition plate, the refrigeration side of the semiconductor chilling plate faces the inlet side of the U-shaped cavity, the heat dissipation side of the semiconductor chilling plate faces the air outlet side of the U-shaped cavity, and the controller is used for controlling work of the air pump, the water pump and the semiconductor chilling plate. The gas-liquid separator is good in gas-liquid separation effect and stable in gas flow.

Description

Technical Field

[0001] The utility model relates to a gas-liquid separation device, in particular to a gas-liquid separation device used for portable oxygen production equipment. Background Art

[0002] In the process of water electrolysis to produce oxygen and hydrogen, there is a mixed output of oxygen, hydrogen, water vapor, electrolyte, liquid water, etc. If gas-liquid separation is not performed, a small amount of electrolyte may be carried in the gas output, and the electrolyte is corrosive to a certain extent, which will pose a potential risk to users, so this problem must be solved. Existing gas-liquid separation devices are mainly used for industrial electrolysis and are not suitable for portable devices. Equipment equipped with simple gas-liquid separators has poor separation effect and is prone to cause unstable airflow. Utility Model Content

[0003] In view of the above-mentioned defects of the prior art, the task of the utility model is to provide a gas-liquid separation device for a portable oxygen production equipment, the purpose of which is to perform gas-liquid separation on the output airflow and stabilize the airflow.

[0004] The technical scheme of the utility model is as follows: A gas-liquid separation device for a portable oxygen production equipment comprises a gas-liquid separation tube, an air pump, a first gas filter, a one-way check valve, a water pump and a controller, wherein the gas-liquid separation tube is provided with a partition, wherein the partition separates the inner cavity of the gas-liquid separation tube into a U-shaped cavity, wherein the gas-liquid separation tube is provided with an inlet and an air outlet at the upper parts of both ends of the U-shaped cavity, wherein the bottom of the U-shaped cavity is provided with a liquid outlet, wherein the inlet is connected to the gas-liquid outlet of the electrolytic water tank of the portable oxygen production equipment, wherein the air outlet is connected to the first gas filter through the air pump to output the air flow, wherein the liquid outlet is connected to the one-way check valve and the water pump in sequence, wherein the outlet of the water pump is connected to the liquid inlet of the electrolytic water tank, wherein a semiconductor refrigeration sheet is provided on the partition, wherein the refrigeration side of the semiconductor refrigeration sheet is arranged toward the inlet side of the U-shaped cavity, and the heat dissipation side of the semiconductor refrigeration sheet is arranged toward the air outlet side of the U-shaped cavity, wherein the controller is used to control the operation of the air pump, the water pump and the semiconductor refrigeration sheet.

[0005] Furthermore, a heat-conducting grid is provided between the cooling side of the semiconductor cooling sheet and the entrance of the U-shaped cavity, and the heat-conducting grid is connected to the cooling side of the semiconductor cooling sheet. The provision of the heat-conducting grid further increases the contact surface between the gas-liquid mixed flow and the cooling side of the semiconductor cooling sheet, and can quickly condense the electrolyte brought into the gas-liquid separation tube, thereby improving the separation efficiency.

[0006] Furthermore, the thermally conductive grid is formed by stacking multiple layers of metal mesh sheets.

[0007] Furthermore, a liquid level sensor is provided on the inner wall of the gas-liquid separation tube, and the liquid level sensor is electrically connected to the controller. When the liquid level sensor detects that the liquid level exceeds a limit, the controller controls the water pump to draw liquid from the U-shaped cavity.

[0008] Furthermore, a solenoid valve is provided at the outlet of the water pump, and the solenoid valve is electrically connected to the controller.

[0009] Furthermore, the gas-liquid separation tube is provided with a dumping sensor, and the dumping sensor is electrically connected to the controller. When the dumping sensor measures that the tilt angle exceeds a limit, the controller controls the water pump and the air pump to stop working.

[0010] Furthermore, a second gas filter is provided between the gas outlet of the U-shaped cavity and the air pump.

[0011] The advantages of the utility model compared with the prior art are:

[0012] The utility model adopts a U-shaped cavity structure to extend the gas-liquid flow path, promote the condensation and separation of the liquid, and at the same time, a semiconductor refrigeration sheet is set on the partition to further strengthen the condensation of the liquid. The heat dissipation side of the semiconductor refrigeration sheet can be used to heat the outlet airflow, reheat the airflow, and improve the gas-liquid separation effect. At the same time, no additional heating device is required to ensure the comfort of the output airflow. In addition, the stability of the output gas flow is effectively controlled by the air pump, and the flow rate will not drop due to the gas-liquid separator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the structure of a gas-liquid separation device for a portable oxygen production device according to an embodiment. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the embodiments, but is not intended to limit the present invention.

[0015] Please combine Figure 1 As shown, the present embodiment involves a gas-liquid separation device for a portable oxygen production device, comprising a gas-liquid separation tube 1, an air pump 2, a first gas filter 3, a one-way check valve 4, a water pump 5 and a controller 6. The gas-liquid separation tube 1 is a main device for gas-liquid separation, which is tubular. Two openings are relatively opened on the upper side wall of the gas-liquid separation tube 1, namely an inlet 101 and an outlet 102, wherein the inlet 101 is connected to the gas-liquid outlet 701 of the electrolytic water tank 7 of the portable oxygen production device through a pipeline or directly. Oxygen produced by electrolysis of electrolyte and the electrolyte that may be carried enter the gas-liquid separation tube 1 through the inlet 101. The outlet 102 of the gas-liquid separation tube 1 is connected to the inlet of the air pump 2, and the outlet of the air pump 2 is connected to the first gas filter 3, and gas is supplied to the outside through the first gas filter 3.

[0016] A partition 8 is provided in the gas-liquid separation tube 1 extending downward from the top of the gas-liquid separation tube, and the partition 8 divides the inner cavity of the gas-liquid separation tube 1 into a U-shaped cavity, that is, after the airflow enters the gas-liquid separation tube 1 at the inlet 101, it first flows downward and then flows upward and then is discharged from the outlet 102. Therefore, the inlet 101 and the outlet 102 of the gas-liquid separation tube 1 are respectively located at the two ends of the U-shaped cavity. The structure of the U-shaped cavity increases the flow path of the airflow, which is more conducive to the capture of droplets.

[0017] A semiconductor refrigeration sheet 9 is also provided on the partition 8, and the height position of the semiconductor refrigeration sheet 9 is equivalent to the position of the inlet 101 and the outlet 102 of the gas-liquid separation tube 1. The refrigeration side of the semiconductor refrigeration sheet 9 is arranged toward the inlet 101 of the U-shaped cavity, and the corresponding heat dissipation side of the semiconductor refrigeration sheet 9 is arranged toward the outlet 102 of the U-shaped cavity. The refrigeration side of the semiconductor refrigeration sheet 9 can promote the condensation of the vaporized electrolyte to achieve the effect of separation from oxygen. As a preferred embodiment, a heat-conducting grid 10 is provided between the refrigeration side of the semiconductor refrigeration sheet 9 and the inlet of the U-shaped cavity. The heat-conducting grid 10 is a stacked multi-layer metal mesh, which is connected to the refrigeration side of the semiconductor refrigeration sheet 9. On the one hand, the multi-layer metal mesh increases the contact surface with the airflow, which can better achieve condensation, and can also capture tiny droplets to improve separation efficiency.

[0018] The separated droplets fall into the bottom of the U-shaped cavity. A liquid outlet 103 is provided at the bottom of the U-shaped cavity, i.e., the bottom of the gas-liquid separation tube 1. The liquid outlet 103 is connected to the one-way check valve 4 and the water pump 5 in sequence. The outlet of the water pump 5 is provided with a solenoid valve 11 and then connected to the liquid inlet of the electrolytic water tank 7. The captured electrolyte can flow back to the electrolytic water tank 7.

[0019] The controller 6 is electrically connected to the air pump 2, the water pump 5, the semiconductor cooling sheet 9, and the electromagnetic valve 11 to control the operation of these components. When the gas-liquid separation device for portable oxygen production equipment is in operation, the semiconductor cooling sheet 9 works to separate the gas and liquid, and the separated oxygen is continuously pumped outward by the air pump 2. In addition, the water pump 5 is controlled to work in a timely manner to pump the captured electrolyte back to the electrolytic water tank 7, so as to achieve gas-liquid separation while ensuring the stability of the airflow.

[0020] As a preferred embodiment, in this embodiment, a second gas filter 12 is also provided between the gas outlet 102 of the U-shaped cavity and the air pump 2 to further improve the filtering effect of the gas outlet. In addition, a liquid level sensor 13 and a dumping sensor 14 are provided to improve the stability and reliability of the work. The specific liquid level sensor 13 is arranged on the inner wall of the gas-liquid separation tube 1, and the liquid level sensor 13 is electrically connected to the controller 6. The controller 6 controls the water pump 5 to suck liquid from the U-shaped cavity when the liquid level sensor 13 measures that the liquid level exceeds the limit. It is easy to understand that since the liquid level sensor 13 needs to detect the amount of liquid collected in the U-shaped cavity, when the liquid exceeds the bottom end of the partition 8, the two ends of the U-shaped cavity cannot be directly connected, so the limited liquid level should be lower than the bottom end of the partition 8. The dumping sensor 14 is also arranged on the gas-liquid separation tube 1, and the dumping sensor 14 is electrically connected to the controller 6. The controller 6 controls the water pump 5 and the air pump 2 to stop working when the dumping sensor 14 measures that the tilt angle exceeds the limit.

[0021] When the preferred embodiment is working, when the liquid at the bottom of the gas-liquid separation tube 1 reaches a certain amount, the liquid level sensor 13 detects that the liquid level exceeds the limit, and the controller 6 controls the water pump 5 and the electromagnetic valve 11 to open, and extracts the liquid stored in the gas-liquid separation tube 1. After the extraction is completed, the electromagnetic valve 11 and the water pump 5 are immediately closed to ensure the stability of the gas flow. When the tipping sensor 14 measures that the tilt angle of the equipment exceeds a certain degree, the air pump 2 can be controlled to stop working immediately, and the water pump 5 and the electromagnetic valve 11 can be controlled to be in a closed state, and continue to work after returning to normal, thereby improving work reliability.

Claims

1. A gas-liquid separation device for a portable oxygen production device, characterized in that: The portable oxygen generator comprises a gas-liquid separation tube, an air pump, a first gas filter, a one-way check valve, a water pump and a controller. The gas-liquid separation tube is provided with a partition, and the partition divides the inner cavity of the gas-liquid separation tube into a U-shaped cavity. An inlet and an air outlet are respectively provided at the upper parts of the two ends of the gas-liquid separation tube located at the U-shaped cavity. A liquid outlet is provided at the bottom of the U-shaped cavity. The inlet is connected to the gas-liquid outlet of the electrolytic water tank of the portable oxygen generator. The air outlet is connected to the first gas filter through the air pump to output the airflow. The liquid outlet is connected to the one-way check valve and the water pump in sequence. The outlet of the water pump is connected to the liquid inlet of the electrolytic water tank. A semiconductor refrigeration sheet is provided on the partition, and the cooling side of the semiconductor refrigeration sheet is arranged toward the inlet side of the U-shaped cavity, and the heat dissipation side of the semiconductor refrigeration sheet is arranged toward the air outlet side of the U-shaped cavity. The controller is used to control the operation of the air pump, the water pump and the semiconductor refrigeration sheet.

2. The gas-liquid separation device for portable oxygen production equipment according to claim 1, characterized in that: A heat-conducting grid is arranged between the cooling side of the semiconductor cooling plate and the entrance of the U-shaped cavity, and the heat-conducting grid is connected to the cooling side of the semiconductor cooling plate.

3. The gas-liquid separation device for portable oxygen production equipment according to claim 2, characterized in that: The heat-conducting grid is formed by stacking multiple layers of metal mesh sheets.

4. The gas-liquid separation device for portable oxygen production equipment according to claim 1, characterized in that: A liquid level sensor is provided on the inner wall of the gas-liquid separation tube. The liquid level sensor is electrically connected to the controller. When the liquid level sensor detects that the liquid level exceeds a limit, the controller controls the water pump to draw liquid from the U-shaped cavity.

5. The gas-liquid separation device for portable oxygen production equipment according to claim 1 or 4, characterized in that: The outlet of the water pump is provided with a solenoid valve, and the solenoid valve is electrically connected to the controller.

6. The gas-liquid separation device for portable oxygen production equipment according to claim 1, characterized in that: The gas-liquid separation tube is provided with a dumping sensor, and the dumping sensor is electrically connected to the controller. When the dumping sensor measures that the tilt angle exceeds a limit, the controller controls the water pump and the air pump to stop working.

7. The gas-liquid separation device for portable oxygen production equipment according to claim 1, characterized in that: A second gas filter is provided between the gas outlet of the U-shaped cavity and the gas pump.

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