A liquid injection compressor anti-liquid accumulation system

Abstract

This application relates to the technical field of liquid injection compressors, and more particularly to a liquid injection compressor anti-liquid accumulation system, which includes a compressor and a gas-liquid separator. The compressor is provided with a main unit exhaust port and a main unit liquid discharge port. The main unit exhaust port is connected to the gas-liquid separator, and an exhaust check valve is provided between the main unit exhaust port and the gas-liquid separator. The main unit liquid discharge port is connected to a one-way valve, which is connected to the gas-liquid separator through the exhaust check valve. When the compressor stops working, the one-way valve is in the open state; when the compressor is working, the one-way valve closes under the gas pressure of the main unit exhaust port. This application has the effect of allowing the liquid accumulated in the compressor to be discharged in a timely manner when the compressor stops.

Description

Technical Field

[0001] This application relates to the technical field of liquid injection compressors, and more particularly to a liquid injection compressor anti-liquid accumulation system. Background Technology

[0002] Liquid injection compressors and gas injection compressors are two types of compressors. When working, a liquid injection compressor uses liquid as the working medium for compression. The liquid injection compressor includes a compression chamber and a nozzle. The nozzle is the inlet for the liquid to enter the compression chamber. The liquid first enters the nozzle and then enters the compression chamber through the nozzle. After entering the compression chamber, the liquid partially evaporates to form a gas-liquid mixture. The pressure of the mixed gas-liquid mixture will increase. During the mixing process, the compression chamber will further compress the gas, further increasing the pressure. The compressed gas-liquid mixture is then discharged from the outlet of the compression chamber. Liquid injection compressors can achieve higher pressures.

[0003] In related technologies, when a liquid injection compressor stops, some liquid may accumulate inside the compressor. Alternatively, liquid may accumulate inside the compressor due to untimely closure or leakage of the injection valve. When there is too much liquid inside the compressor, the space inside the compression chamber decreases when the compressor restarts. When the amount of liquid exceeds the minimum space of the compression chamber, liquid slugging will occur during the liquid compression process. Liquid slugging is caused by the inability of the liquid to be further compressed, resulting in damage to the moving parts of the compressor. Therefore, to reduce the occurrence of liquid slugging, a pump is connected to the part that needs to drain the liquid. After liquid accumulation occurs, the liquid is discharged through the pump.

[0004] However, due to the pump not working in time, the liquid may still accumulate in the compressor, resulting in liquid slugging. Summary of the Invention

[0005] In order to ensure that the liquid accumulated in the compressor can be discharged in a timely manner when the compressor stops, this application provides a liquid injection compressor anti-liquid accumulation system.

[0006] This application provides a liquid injection compressor anti-liquid accumulation system, which adopts the following technical solution:

[0007] A liquid injection compressor anti-liquid accumulation system includes a compressor and a gas-liquid separator. The compressor is provided with a main exhaust port and a main liquid discharge port. The main exhaust port is connected to the gas-liquid separator, and an exhaust check valve is provided between the main exhaust port and the gas-liquid separator. The main liquid discharge port is connected to a one-way valve, which is connected to the gas-liquid separator through the exhaust check valve. When the compressor stops working, the one-way valve is in the open state. When the compressor is working, the one-way valve is closed under the gas pressure of the main exhaust port.

[0008] By adopting the above technical solution, when the compressor is working, the high-pressure gas generated at the main unit's exhaust port enters the gas-liquid separator through the exhaust check valve. Gas-liquid separation occurs in the gas-liquid separator. Since the pressure at the main exhaust port is greater than the pressure at the main unit's drain port, the one-way valve is prevented from opening, reducing the pressure at the main unit's exhaust port from flowing towards the main unit's drain port. At the same time, when the compressor stops, the pressure at the main unit's exhaust port decreases, and the accumulated liquid at the main unit's drain port flows from the one-way valve to the exhaust check valve and then to the gas-liquid separator through the opening of the one-way valve. This allows the accumulated liquid inside the compressor to be discharged in a timely manner when the compressor stops, reducing the possibility of liquid slugging damage to the compressor.

[0009] Preferably, the gas-liquid separator includes an outer tank, a gas inlet pipe, and a gas outlet pipe. The gas inlet pipe is connected to one end of the outer tank and is used to connect to an exhaust check valve. The gas outlet pipe is connected to the end of the outer tank away from the gas inlet pipe. The outer tank is elongated and placed horizontally.

[0010] By adopting the above technical solution, a gas inlet pipe is set at one end of the outer tank. The gas-liquid mixture enters the outer tank through the gas inlet pipe. When the gas passes through the long outer tank, the liquid and gas can be separated, thereby reducing the discharge of liquid and improving the efficiency of the compressor.

[0011] Preferably, the outer tank is provided with a partition plate, one side of which is a liquid collection chamber and the other side is a liquid evaporation chamber. The liquid collection chamber is used to connect to a gas inlet pipe, and the liquid evaporation chamber is used to connect to a gas outlet pipe. The gas inlet pipe is connected to the lower part of the liquid collection chamber, and a communication port is provided on the upper part of the partition plate.

[0012] By adopting the above technical solution, a liquid collection chamber and a liquid evaporation chamber are formed inside the outer tank by setting a partition plate. When the gas-liquid mixture enters the liquid collection chamber through the gas inlet pipe, a large amount of liquid can be removed through the liquid in the liquid collection chamber, so that the gas-liquid mixture can be initially separated.

[0013] Preferably, the connection port is provided with a one-way control valve for closing the connection port when the compressor stops working, and a connecting pipe is provided inside the outer tank for connecting the liquid collection chamber and the liquid evaporation chamber. A control valve is installed on the connecting pipe, and the control valve opens the connecting pipe when the compressor stops working.

[0014] By adopting the above technical solution, the one-way control valve is connected to the connection port. When the compressor stops working, the one-way control valve closes the connection port, and at the same time the control valve on the connecting pipe opens, so that the connecting pipe can discharge the liquid in the liquid collection chamber into the liquid evaporation chamber, further reducing the pressure in the liquid collection chamber, making it easier for the accumulated liquid in the drain port to flow into the liquid collection chamber, which facilitates the arrangement of the gas-liquid separator.

[0015] Preferably, a centrifugal dehydration plate is provided inside the liquid evaporation chamber. The centrifugal dehydration plate includes an arc-shaped part one and an arc-shaped part two. The arc-shaped part one is fixed at one end to the upper part of the outer tank. The arc-shaped part one is directly opposite the connecting port. The arc-shaped part one curves in an arc shape away from the connecting port. The arc-shaped part two is connected to the lower part of the arc-shaped part one, and the end of the arc-shaped part two away from the arc-shaped part one gradually extends upward and is set below the connecting port.

[0016] By adopting the above technical solution, the first arc-shaped part is set directly opposite the connecting port, so that when the gas flowing out of the connecting port passes through the first arc-shaped part, it will be guided by the first arc-shaped part to rotate downwards, and the liquid droplets still mixed in the gas will stick to the first arc-shaped part. Furthermore, by further turning the gas quickly at the connection between the second arc-shaped part and the first arc-shaped part, the smaller liquid particles can be collected.

[0017] Preferably, an arc-shaped connecting part is provided between the first arc-shaped part and the second arc-shaped part. The arc-shaped connecting part is a downwardly concave arc, and a downwardly extending drain pipe is connected to the lowest position of the arc-shaped connecting part.

[0018] By adopting the above technical solution, the arc-shaped connecting part can guide the gas through a transition, allowing the gas to smoothly pass through arc-shaped part one and reach arc-shaped part two. At the same time, the liquid collected at the arc-shaped connecting part is discharged through the drain pipe to prevent the liquid from flowing with the gas.

[0019] Preferably, a wire mesh plate is provided on the side of the centrifugal dehydration plate away from the communication port, and the wire mesh plate is filled in the outer tank and is positioned directly opposite the gas outlet pipe.

[0020] By adopting the above technical solution, the gas flows from the bottom to the top of the wire mesh plate due to the setting of the centrifugal dehydration plate. As a result, the gas further contacts and adheres to the wire mesh plate, thereby improving the gas-liquid separation effect.

[0021] Preferably, the control valve is a pneumatic diaphragm valve, which is located inside the liquid collection chamber and the pneumatic control part of the control valve is higher than the lowest position of the connecting port.

[0022] By adopting the above technical solution, the pneumatic diaphragm valve is located in the liquid collection chamber, which can open when the pressure in the liquid collection chamber decreases and close when the compressor is working, thereby automatically controlling the opening or closing of the connecting pipe. Furthermore, during the liquid discharge process of the liquid collection chamber, the pneumatic diaphragm valve can ensure that the connecting pipe is in the open state.

[0023] Preferably, the one-way control valve includes a valve body and a valve plate. The valve body has a rectangular cross-section and a column in the middle. Two valve plates are symmetrically arranged about the center of the column. The valve plates are rotatably connected to the valve body near the inner wall of the valve body. A torsion spring is provided between the valve plate and the valve body to abut the valve plate against the column.

[0024] By adopting the above technical solution, two valve plates are installed in the valve body. The two valve plates are opened by air pressure near the column, making it easier for the valve plates to rotate.

[0025] Preferably, the main unit's drain port is connected to a three-way pipe, with one end of the three-way pipe away from the main unit's drain port used to connect to an exhaust check valve, and the other end connected to a normally closed ball valve.

[0026] By adopting the above technical solution, one end of the three-way pipe is connected to the exhaust check valve, and the other end is connected to the normally closed ball valve. When it is necessary to manually drain the liquid accumulated at the drain port of the main unit, the normally closed ball valve can be opened so that the liquid can flow directly out of the three-way pipe through the normally closed ball valve.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. When the compressor stops, the pressure at the exhaust port of the main unit decreases. The liquid accumulated at the drain port of the main unit can flow from the check valve to the exhaust check valve and then to the gas-liquid separator through the opening of the check valve. This allows the liquid inside to be discharged in time when the compressor stops, reducing the possibility of liquid slugging damage to the compressor.

[0029] 2. By opening the control valve on the connecting pipe, the liquid in the liquid collection chamber can be discharged into the liquid evaporation chamber, further reducing the pressure in the liquid collection chamber and making it easier for the accumulated liquid in the drain port to flow into the liquid collection chamber.

[0030] 3. By setting the arc-shaped part one directly opposite the communication port, the gas flowing out of the communication port will be guided by the arc-shaped part one to rotate downwards, and the liquid droplets still mixed in the gas will stick to the arc-shaped part one. Furthermore, by further turning the gas quickly at the connection between the arc-shaped part two and the arc-shaped part one, the smaller liquid particles can be collected. Attached Figure Description

[0031] Figure 1 This is an overall schematic diagram of an embodiment of this application;

[0032] Figure 2 This is an internal structural diagram of the outer tank in an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of the installation of the one-way control valve in an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Compressor; 11. Main unit air inlet; 12. Main unit exhaust port; 13. Main unit liquid outlet; 14. Air inlet pipe; 2. Gas-liquid separator; 21. Outer tank; 22. Gas inlet pipe; 23. Gas outlet pipe; 24. Divider plate; 241. Connecting port; 25. Liquid collection chamber; 26. Liquid evaporation chamber; 3. Exhaust check valve; 4. Gas outlet pipe; 5. T-connector; 51. Normally closed ball valve; 6. One-way valve; 7. One-way control valve; 71. Valve body; 72. Valve plate; 73. Torsion spring; 8. Connecting pipe; 81. Control valve; 9. Centrifugal dehydration plate; 91. Arc-shaped part one; 92. Arc-shaped part two; 93. Arc-shaped connecting part; 94. Liquid outlet pipe; 10. Wire mesh plate. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0036] This application discloses an anti-liquid accumulation system for a liquid spray compressor 1, referencing... Figure 1The system includes a compressor 1, which has a main unit air inlet 11, a main unit exhaust port 12, and a main unit liquid drain port 13. The main unit liquid drain port 13 is used to drain the liquid accumulated in the compressor 1. The main unit air inlet 11 is connected to an air inlet pipe 14, and the main unit exhaust port 12 is connected to a gas-liquid separator 2. An exhaust check valve 3 is installed between the gas-liquid separator 2 and the main unit exhaust port 12. When the compressor 1 is working, pressurized gas flows out from the main unit exhaust port 12, passes through the exhaust check valve 3, and enters the gas-liquid separator 2. The gas-liquid separator 2 is connected to an exhaust pipe 4. The gas-liquid mixture enters the gas-liquid separator 2 to filter out the liquid, and then the pressurized gas is discharged through the exhaust pipe 4 for operation. At the same time, a three-way pipe 5 is connected to the main unit liquid drain port 13. One-way valve 6 is connected to one end of the three-way pipe 5 away from the main unit liquid drain port 13, and normally closed ball valve 51 is connected to the other end. The normally closed ball valve 51 is used to manually open for liquid drainage, and the unit valve is connected to the gas-liquid separator 2 via the exhaust check valve 3. During installation, the height of compressor 1 can be higher than the height of gas-liquid separator 2. When compressor 1 is working, the pressure of the gas flowing out of the main exhaust port 12 of compressor 1 is higher than the pressure at the main drain port 13, so the one-way valve 6 is in a closed state, which can prevent pressurized gas from flowing back to the low-pressure area. However, after compressor 1 stops, the pressure at the main exhaust port 12 decreases, so the liquid accumulated at the drain port can open the one-way valve 6 under the action of gravity, allowing the liquid to enter the gas-liquid separator 2 through the one-way valve 6 and the exhaust check valve 3. This can reduce the excessive liquid accumulation inside compressor 1 after shutdown and reduce the damage to compressor 1 caused by liquid slugging when it is started up again.

[0037] refer to Figure 2 The gas-liquid separator 2 includes an outer tank 21, a gas inlet pipe 22, and a gas outlet pipe 23. The gas inlet pipe 22 is located at one end of the outer tank 21. The outer tank 21 is a long, cylindrical shape, and its axis is horizontal. The gas inlet pipe 22 is connected to the lower part of the outer tank 21. The gas outlet pipe 23 is connected to the end of the outer tank 21 away from the gas inlet pipe 22, connecting the gas outlet pipe 23 to the upper part of the outer tank 21. The gas inlet pipe 22 is used to connect to an exhaust check valve 3, and the gas outlet pipe 23 is connected to an outlet pipe 4 via a flange. When the gas-liquid mixture enters the gas-liquid separator 2 through the gas inlet pipe 22, the liquid remains in the outer tank 21, and the gas is then discharged from the outer tank 21 through the gas outlet pipe 23.

[0038] refer to Figure 2A partition plate 24 is provided inside the outer tank 21, dividing the outer tank 21 into a liquid collection chamber 25 and a liquid evaporation chamber 26. The liquid collection chamber 25 is located at one end of the outer tank 21 connected to the gas inlet pipe 22, and the gas inlet pipe 22 is connected to the liquid collection chamber 25, while the gas outlet pipe 23 is connected to the liquid evaporation chamber 26. The liquid in the liquid collection chamber 25 can bury the gas inlet pipe 22 in the lower part of the liquid. During operation, the gas-liquid mixture enters the liquid collection chamber 25. As the gas-liquid mixture passes through the liquid in the liquid collection chamber 25, large liquid particles are collected by the liquid in the liquid collection chamber 25, thus continuously collecting the liquid in the gas-liquid mixture in the liquid collection chamber 25. The liquid in the liquid evaporation chamber 26 will naturally evaporate after being collected and will be lost with the gas. As a result, the liquid in the liquid collection chamber 25 will increase due to the operation of the compressor 1, while the liquid in the liquid evaporation chamber 26 will decrease due to the operation of the compressor 1.

[0039] refer to Figure 2 A connecting port 241 is provided in the upper part of the partition plate 24, which is used to connect the liquid collection chamber 25 and the liquid evaporation chamber 26. The gas filtered by the liquid collection chamber 25 will enter the liquid evaporation chamber 26 through the connecting port 241. At the same time, the liquid in the liquid collection chamber 25 gradually increases. After the compressor 1 has been working for a period of time, there is a lot of liquid in the liquid collection chamber 25. The liquid in the liquid collection chamber 25 will overflow from the connecting port 241 into the liquid evaporation chamber 26, so that the gas-liquid separator 2 maintains the normal gas-liquid separation working state.

[0040] refer to Figure 2A one-way control valve 7 is installed directly opposite the partition plate 24 and the connecting port 241. The one-way control valve 7 can be an electrically controlled valve. It allows gas to flow from the liquid collection chamber 25 to the liquid evaporation chamber 26. While the compressor 1 is operating, the one-way control valve 7 allows normal gas flow. When the compressor 1 stops operating, the one-way control valve 7 automatically closes, preventing gas from flowing from the liquid evaporation chamber 26 to the liquid collection chamber 25. A connecting pipe 8 is installed inside the outer tank 21. One end of the connecting pipe 8 is connected to the liquid collection chamber 25, and the other end is connected to the liquid evaporation chamber 26. Both ends of the connecting pipe 8 extend downwards into the liquids within the liquid collection chamber 25 and the liquid evaporation chamber 26, respectively. A control valve 81 is installed on the connecting pipe 8. The control valve 81 can be a solenoid valve or a pneumatic diaphragm valve. When a pneumatic diaphragm valve is used, the control valve 81 is installed inside the liquid collection chamber 25. Control valve 81 is used to open or disconnect the connecting pipe 8. Control valve 81 is open when compressor 1 stops working, and closed when compressor 1 is working. The highest point of the connecting pipe 8 is located below the connecting port 241, so that when the connecting pipe 8 is open, liquid in the liquid collection chamber 25 can flow from the connecting pipe 8 to the liquid evaporation chamber 26. When the pneumatic diaphragm valve is used as control valve 81, control valve 81 is open when the pressure in the liquid collection chamber 25 decreases. Therefore, during operation, when the compressor 1 is working, due to the high pressure in the liquid collection chamber 25 and the liquid evaporation chamber 26, the control valve 81 will also be closed due to the pressure, thus disconnecting the connecting pipe 8. When the compressor 1 stops working, the control valve 81 opens due to the pressure drop at its location. The pneumatic control part of the control valve 81 is higher than the lowest position of the connecting port 241. The liquid in the liquid collection chamber 25 flows into the liquid evaporation chamber 26 through the connecting pipe 8, further reducing the pressure in the liquid collection chamber 25 and keeping the pneumatic diaphragm valve as the open state of the control valve 81. In addition, due to the pressure drop in the liquid collection chamber 25, the one-way valve 6 can be opened, allowing the accumulated liquid in the compressor 1 to flow quickly into the liquid collection chamber 25. Even if the installation height of the gas-liquid separator 2 is the same as the height of the compressor 1, it can still enter the drain.

[0041] refer to Figure 2A centrifugal dehydration plate 9 is provided inside the outer tank 21. The centrifugal dehydration plate 9 includes an arc-shaped portion 91 and an arc-shaped portion 92. One end of the arc-shaped portion 91 is fixed to the upper part of the outer tank 21 and sealed to the upper part of the outer tank 21. The arc-shaped portion 92 is connected to the arc-shaped portion 91. The arc-shaped portion 91 is located in the liquid evaporation chamber 26 and is positioned directly opposite the connecting port 241. When gas enters the liquid evaporation chamber 26 through the connecting port 241, the gas impacts the arc-shaped portion 91. The arc-shaped portion 91 arches away from the connecting port 241, causing the gas to move downward along the arc-shaped portion 91 and rotate under the action of the arc-shaped portion 91. This causes the smaller liquid particles still mixed in with the gas to adhere to the arc-shaped portion 91. One end of the arc-shaped section 92 is connected to the arc-shaped section 92, forming a downwardly concave arc-shaped connecting section 93. The arc-shaped section 92 gradually extends upward from the side away from the arc-shaped section 91 and is lower than the lowest position of the connecting port 241, so that the gas flows through the arc-shaped section 91, the arc-shaped connecting section 93 and the arc-shaped section 92 in sequence. The change in gas flow velocity direction is greatest at the position of the arc-shaped connecting section 93, which makes the separation of smaller particles better. A downwardly extending drain pipe 94 is connected to the lowest point of the arc-shaped connecting section 93, and the drain pipe 94 flows the liquid collected in the arc-shaped connecting section 93 to the bottom of the liquid evaporation chamber 26. After the gas passes through the centrifugal dehydration plate 9, it flows from the bottom of the centrifugal dehydration plate 9 in a direction away from the partition plate 24. The gas outlet pipe 23 is located on the side of the centrifugal dehydration plate 9 away from the partition plate 24.

[0042] refer to Figure 2 A wire mesh plate 10 is provided directly below the gas outlet pipe 23. The wire mesh plate 10 is a porous structure made of metal wire or plastic wire. The wire mesh plate 10 is filled in the outer tank 21 and is located at the position of the gas outlet pipe 23. After the gas passes through the centrifugal deliquencing plate 9, it enters the interior of the wire mesh plate 10 and passes through the tiny holes of the wire mesh plate 10. At this time, the tiny liquid droplets contained in the gas will stick to the wire mesh plate 10 again, further improving the gas-liquid separation effect.

[0043] refer to Figure 3 The one-way control valve 7 may include a valve body 71 and a valve plate 72. The valve body 71 may have a rectangular or square cross-section. The valve plate 72 is rotatably connected inside the valve body 71, and a column for positioning the valve plate 72 may be provided in the middle of the valve body 71. One end of the valve plate 72 is rotatably connected to the valve body 71 near the inner wall of the valve body 71, and the other end is used to abut against the column. Two valve plates 72 are symmetrically arranged about the center line of the column. The valve plate 72 can rotate away from the partition plate 24 to open the passage inside the valve body 71. A torsion spring 73 is connected to the valve plate 72. One end of the torsion spring 73 is rotatably connected to the valve plate 72, and the other end is rotatably connected to the inner wall of the valve body 71, so that the valve plate 72 can be in an automatically closed state under the force of the torsion spring 73.

[0044] The working process of this embodiment:

[0045] When compressor 1 is working, pressurized gas enters the liquid collection chamber 25 of the outer tank 21 from the main unit exhaust port 12 via the exhaust check valve 3. From the liquid collection chamber 25, the one-way control valve 7 opens through the connecting port 241 and enters the liquid evaporation chamber 26. It then undergoes further liquid removal on the centrifugal dehydration plate 9, and then enters the lower part of the wire mesh plate 10 below the centrifugal dehydration plate 9, gradually rising and undergoing further separation within the wire mesh plate 10. Finally, it is discharged through the gas outlet pipe 23 for use. When compressor 1 stops working, the pressure inside the outer tank 21 decreases. The one-way control valve 7 closes the connecting port 241, and simultaneously the control valve 81 opens the connecting pipe 8. The connecting pipe 8 directs the liquid from the liquid collection chamber 25 into the liquid evaporation chamber 26, reducing the pressure inside the liquid collection chamber 25. This causes the one-way valve 6 to open, allowing the accumulated liquid in compressor 1 to enter the gas-liquid separator 2 from the main unit drain port 13 via the one-way valve 6 and the exhaust check valve 3.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A liquid injection compressor anti-liquid accumulation system, comprising a compressor (1) and a gas-liquid separator (2), wherein the compressor (1) is provided with a main unit exhaust port (12) and a main unit liquid discharge port (13), characterized in that: The main exhaust port (12) is connected to the gas-liquid separator (2), and an exhaust check valve (3) is provided between the main exhaust port (12) and the gas-liquid separator (2). The main drain port (13) is connected to a one-way valve (6). The one-way valve (6) is connected to the gas-liquid separator (2) through the exhaust check valve (3). When the compressor (1) stops working, the one-way valve (6) is in the open state. When the compressor (1) is working, the one-way valve (6) is closed under the gas pressure of the main exhaust port (12). The gas-liquid separator (2) includes an outer tank (21), a gas inlet pipe (22), and a gas outlet pipe (23). The gas inlet pipe (22) is connected to one side of the outer tank (21). The end is used to connect to the exhaust check valve (3). The gas outlet pipe (23) is connected to the end of the outer tank (21) away from the gas inlet pipe (22). The outer tank (21) is long and horizontal. A partition plate (24) is provided inside the outer tank (21). One side of the partition plate (24) is a liquid collection chamber (25), and the other side is a liquid evaporation chamber (26). The liquid collection chamber (25) is used to connect to the gas inlet pipe (22), and the liquid evaporation chamber (26) is used to connect to the gas outlet pipe (23). The gas inlet pipe (22) is connected to the lower part of the liquid collection chamber (25). A communication port (241) is opened on the upper part of the partition plate (24). The liquid evaporation chamber (26) is provided with a centrifugal dehydration plate (9). The centrifugal dehydration plate (9) includes an arc-shaped part one (91) and an arc-shaped part two (92). One end of the arc-shaped part one (91) is fixed to the upper part of the outer tank (21). The arc-shaped part one (91) is directly opposite to the connecting port (241). The arc-shaped part one (91) curves away from the connecting port (241). The arc-shaped part two (92) is connected to the lower part of the arc-shaped part one (91). The end of the arc-shaped part two (92) away from the arc-shaped part one (91) gradually extends upward and is set below the connecting port (241).

2. The anti-liquid accumulation system for a liquid spray compressor according to claim 1, characterized in that: A one-way control valve (7) is provided at the connection port (241) for shutting off the connection port (241) when the compressor (1) stops working. A connecting pipe (8) is provided inside the outer tank (21). The connecting pipe (8) is used to connect the liquid collection chamber (25) and the liquid evaporation chamber (26). A control valve (81) is installed on the connecting pipe (8). When the compressor (1) stops working, the control valve (81) opens the connecting pipe (8).

3. The anti-liquid accumulation system for a liquid spray compressor according to claim 1, characterized in that: An arc-shaped connecting part (93) is provided between the arc-shaped part one (91) and the arc-shaped part two (92). The arc-shaped connecting part (93) is a downward concave arc shape, and a downwardly extending drain pipe (94) is connected to the lowest position of the arc-shaped connecting part (93).

4. The anti-liquid accumulation system for a liquid injection compressor according to claim 1, characterized in that: The centrifugal dehydration plate (9) is provided with a wire mesh plate (10) on the side away from the connecting port (241). The wire mesh plate (10) is filled in the outer tank (21) and is positioned directly opposite the gas outlet pipe (23).

5. The anti-liquid accumulation system for a liquid spray compressor according to claim 2, characterized in that: The control valve (81) is a pneumatic diaphragm valve. The control valve (81) is located inside the liquid collection chamber (25), and the pneumatic control part of the control valve (81) is higher than the lowest position of the connecting port (241).

6. The anti-liquid accumulation system for a liquid spray compressor according to claim 2, characterized in that: The one-way control valve (7) includes a valve body (71) and a valve plate (72). The valve body (71) has a rectangular cross-section. A column is provided in the middle of the valve body (71). Two valve plates (72) are symmetrically arranged about the center of the column. The valve plates (72) are rotatably connected to the valve body (71) near the inner wall of the valve body (71). A torsion spring (73) is provided between the valve plate (72) and the valve body (71) to abut the valve plate (72) against the column.

7. The anti-liquid accumulation system for a liquid injection compressor according to claim 1, characterized in that: The main unit drain port (13) is connected to a three-way pipe (5). One end of the three-way pipe (5) away from the main unit drain port (13) is used to connect to the exhaust check valve (3), and the other end is connected to a normally closed ball valve (51).

Images