Water ring vacuum pump

Abstract

The utility model relates to the technology of vacuum pumps, in particular to a water ring vacuum pump which comprises a sound insulation device and an air suction port, the sound insulation device is composed of a sound insulation plate, sound insulation cotton and a honeycomb sound absorption plate, the sound insulation device covers the water ring vacuum pump, the periphery of the bottom of the sound insulation device is fixed on a fixing seat through detachable bolts, and the fixing seat is fixed on the ground. An air suction port is formed in the polymerization reaction kettle, the air suction port is connected with a first vacuum pump through an air inlet pipe, the first vacuum pump is connected with a first motor, the first vacuum pump is connected with a vacuum buffer tank and a plate heat exchanger, and an exhaust port is formed in the upper portion of the vacuum buffer tank. The pumped gas enters the vacuum buffer tank along the gas inlet pipe, the vacuum buffer tank compresses the sucked gas and discharges the compressed gas through the gas outlet, the plate heat exchanger cools and replaces reaction heat, a liquid inlet pipe is installed on the vacuum buffer tank, a liquid supplementing opening is formed in the liquid inlet pipe, an emptying opening is connected to the lower portion of the vacuum buffer tank, and the emptying opening is connected with a filter box.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, and more specifically, particularly to a water ring vacuum pump. Background Art

[0002] Water ring vacuum pump is a kind of rough vacuum pump, which was originally used as a self-priming water pump, and then gradually used in many industrial sectors such as petroleum, chemical industry, machinery, light industry, medicine, etc. Water ring vacuum pump relies on the change of pump chamber volume to realize suction, compression and exhaust, and is a variable volume vacuum pump. Water ring pumps are widely used in many industrial production processes, such as vacuum filtration, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum resurgence and vacuum degassing. Due to the leapfrog development of vacuum application technology, water ring pumps have been valued by people in obtaining rough vacuum. Since the gas compression in the water ring pump is isothermal, it can remove flammable and explosive gases. In addition, it can also remove dusty and water-containing gases. Therefore, the application of water ring pumps is increasing.

[0003] The existing vacuum pump has a small exhaust volume per working circle and low working efficiency. It takes a long time and consumes a lot of power to evacuate the same space. The pump will generate noise pollution when working, and the water discharged from the water ring vacuum pump contains impurities, which will pollute the environment. Utility Model Content

[0004] The present application provides a water ring vacuum pump, which solves the problems that the existing vacuum pumps have a small exhaust volume per working circle, low working efficiency, take a long time and consume a lot of power to vacuum the same space, generate noise pollution when the pump is working, and the water discharged from the water ring vacuum pump contains impurities, which will pollute the environment.

[0005] The present application provides a water ring vacuum pump, including a sound insulation device and a suction port;

[0006] The sound insulation device is composed of a sound insulation board, sound insulation cotton and a honeycomb sound absorbing board. The sound insulation device covers the water ring vacuum pump. The bottom of the sound insulation device is fixed to a fixing seat with detachable bolts. The fixing seat is fixed to the ground.

[0007] The air intake port is connected to a first vacuum pump through an air intake pipe, the first vacuum pump is connected to a first motor, the first vacuum pump is connected to a vacuum buffer tank and a plate heat exchanger through a pipeline, the vacuum buffer tank is connected to the plate heat exchanger, an exhaust port is provided above the vacuum buffer tank, a liquid inlet pipe is installed on the vacuum buffer tank, a liquid replenishment port is provided at the port of the liquid inlet pipe, an exhaust pipe is connected below the vacuum buffer tank, an exhaust port is installed on the exhaust pipe, the exhaust port is connected to a filter box, and a water outlet is provided at the bottom of the filter box.

[0008] Preferably, the air intake port is connected to a second vacuum pump through the air intake pipe, the second vacuum pump is connected to a second motor, and the second vacuum pump is connected to the vacuum buffer tank and the plate heat exchanger through a pipeline.

[0009] Preferably, a filter screen is provided in the filter box, and an inspection port is provided on one side of the filter box, and the inspection port corresponds to the position of the filter screen.

[0010] Preferably, the plate heat exchanger is provided with a cooling water inlet and a cooling water outlet, and the cooling water inlet is connected to a cooling water inlet pipe.

[0011] Preferably, valves are installed on the exhaust pipe, the air inlet pipe, the cooling water inlet pipe and the liquid inlet pipe.

[0012] Preferably, a liquid level sensor is provided in the inner cavity of the vacuum buffer tank.

[0013] Preferably, a solenoid valve is installed on the liquid inlet pipe.

[0014] Preferably, support bases are installed under the first vacuum pump, the second vacuum pump, the first motor and the second motor.

[0015] It can be seen from the above technical scheme that the present application provides a water ring vacuum pump. When in use, the air intake port is connected to the polymerization reactor, the first motor and the first vacuum pump are started, the polymerization reactor is evacuated through the air inlet pipe to make it in a negative pressure state, and the extracted gas (containing water vapor) enters the vacuum buffer tank along the air inlet pipe. The vacuum buffer tank compresses the inhaled gas and discharges it through the exhaust port. Deionized water enters the vacuum buffer tank from the liquid replenishment port along the liquid inlet pipe. The deionized water is clean to ensure the service life of the machine seal and cool the machine seal. A liquid level sensor is provided in the vacuum buffer tank. The liquid level must be maintained within a normal range. An electromagnetic valve is installed on the liquid inlet pipe. The water level is controlled to adjust the liquid level of the vacuum buffer tank. If it is low, water is added from the replenishing port. If it is high, some water is discharged from the drain pipe. A filter box is set behind the drain port. Solid impurities contained in the water discharged from the drain port are filtered out by the filter in the filter box. The inspection port corresponds to the position of the filter. The filter can be cleaned or replaced regularly from the inspection port. The filtered water is discharged from the water outlet and then processed centrally to prevent environmental pollution. The device is equipped with two sets of parallel vacuum equipment. Only one set can be used for vacuum operation, or both sets can be used at the same time. Sound insulation equipment is covered on the device to prevent noise pollution caused by the operation of the motor and vacuum pump during operation.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model is provided with two sets of parallel vacuum pumping equipment, and only one set can be used for vacuum pumping operation, or both sets can be used at the same time, which has high working efficiency and low power consumption.

[0018] 2. The utility model installs sound insulation equipment to prevent noise pollution caused by noise generated during the working process.

[0019] 3. The utility model uses bolts to fix the sound insulation device on the fixing base, which is convenient for disassembly when the device is inspected or replaced.

[0020] 4. The utility model sets a filter box after the emptying port. Solid impurities contained in the water discharged from the emptying port are filtered out by the filter screen in the filter box. The inspection port corresponds to the position of the filter screen. The filter screen can be cleaned or replaced regularly from the inspection port. The filtered water is discharged from the water outlet and then processed centrally to prevent environmental pollution.

[0021] 5. The utility model has a simple structure, is easy to use, simple to maintain, and has high reliability, and can meet the liquid processing needs of different places of use.

[0022] In summary, a water ring vacuum pump is provided with two sets of parallel vacuuming equipment, only one set can be used for vacuuming operation, or both sets can be used at the same time, with high working efficiency and low power consumption, and the installed sound insulation equipment can prevent noise pollution caused by noise during the working process, and the sound insulation equipment is fixed to the fixing seat with bolts, which is convenient for disassembly when the equipment is inspected or replaced, and a filter box is provided after the emptying port, and the solid impurities contained in the water discharged from the emptying port are filtered out by the filter in the filter box, and the inspection port corresponds to the position of the filter, and the filter can be cleaned or replaced regularly from the inspection port, and the filtered water is discharged from the water outlet and then centrally processed to prevent environmental pollution, with simple structure, convenient use, simple maintenance, high reliability, and can meet the liquid processing needs of different places of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without inventiveness.

[0024] Figure 1 A schematic diagram of the front structure of a water ring vacuum pump provided by the utility model;

[0025] Figure 2 A schematic diagram of the top view of a water ring vacuum pump provided by the utility model;

[0026] Figure 3 A schematic diagram of the structure of a sound insulation device for a water ring vacuum pump provided by the utility model;

[0027] Figure 4 The present invention is a partial structural schematic diagram of a water ring vacuum pump provided by the utility model.

[0028] The reference numerals in the specific implementation manner are as follows:

[0029] 1. The first vacuum pump; 2. The second vacuum pump; 3. The vacuum buffer tank; 4. The first motor; 5. The second motor; 6. The air intake; 7. The air exhaust; 8. The liquid replenishment port; 9. The drain port; 10. The drain pipe; 11. The plate heat exchanger; 12. The cooling water inlet; 13. The cooling water outlet; 14. The valve; 15. The air inlet pipe; 16. The support seat; 17. The cooling water inlet pipe; 18. The liquid inlet pipe; 19. The liquid level sensor; 20. The solenoid valve; 21. The filter box; 22. The water outlet; 23. The filter screen; 24. The inspection port; 25. The sound insulation equipment; 26. The sound insulation board; 27. The sound insulation cotton; 28. The honeycomb sound-absorbing board; 29. ​​The fixing seat; 30. The bolt. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0031] See also Figure 1-4 , a water ring vacuum pump. In order to solve the problems that the existing vacuum pump has a small exhaust volume per working circle, low working efficiency, takes a long time and consumes a lot of power to vacuum the same space, the pump generates noise pollution when working, and the water discharged from the water ring vacuum pump contains impurities, which will pollute the environment, a water ring vacuum pump is proposed. The invention provides two sets of parallel vacuum pumping equipment, only one set can be used for vacuuming operation, or both sets can be used at the same time, with high working efficiency and low power consumption. The installed sound insulation equipment can prevent noise pollution caused by noise during operation. The sound insulation equipment is fixed to the fixing seat with bolts, which is convenient for disassembly when the equipment is inspected or replaced, and a filter box is arranged behind the emptying port. The solid impurities contained in the water discharged from the emptying port are filtered out by the filter screen in the filter box. The inspection port corresponds to the position of the filter screen, and the filter screen can be cleaned or replaced regularly from the inspection port. The filtered water is discharged from the water outlet and then centrally processed to prevent environmental pollution. The structure is simple, easy to use, simple to maintain, and highly reliable, and can meet the liquid treatment needs of different places of use. Specifically, a water ring vacuum pump includes a sound insulation device 25 and an air inlet 6; the sound insulation device is composed of a sound insulation board 26, a sound insulation cotton 27 and a honeycomb sound absorbing board 28, the sound insulation device 25 is covered on the water ring vacuum pump, and the bottom of the sound insulation device 25 is fixed to a fixing seat 29 with detachable bolts 30, and the fixing seat 29 is fixed to the ground. The installation of the sound insulation device 25 can prevent noise pollution caused by noise generated during the working process, and the sound insulation device 25 is fixed to the fixing seat 29 with bolts 30, which is convenient for disassembly when the equipment is inspected or replaced;

[0032] The air inlet 6 is connected to the first vacuum pump 1 through the air inlet pipe 15, the first vacuum pump 1 is connected to the first motor 4, the first vacuum pump 1 is connected to the vacuum buffer tank 3 and the plate heat exchanger 11 through a pipeline, the vacuum buffer tank 3 and the plate heat exchanger 11 are connected, the first motor 4 and the first vacuum pump 1 are started, the polymerization reactor is evacuated through the air inlet pipe 15 to make it in a negative pressure state, and the evacuated gas (containing water vapor) enters the vacuum buffer tank 3 along the air inlet pipe 15; the plate heat exchanger 11 is provided with a cooling water inlet 12 and a cooling water outlet 13, the cooling water inlet 12 is connected to the cooling water inlet pipe 17, the exhaust pipe 10, Valves 14 are installed on the air inlet pipe 15, the cooling water inlet pipe 17 and the liquid inlet pipe 18. The plate heat exchanger cools the displacement reaction heat. The cooling water inlet 12 and the cooling water outlet 13 can replace cold water at any time to keep the device within a certain temperature range and will not be affected by the excessively high reaction temperature. The valves 14 installed on the exhaust pipe 10, the air inlet pipe 15, the cooling water inlet pipe 17 and the liquid inlet pipe 18 are opened and closed as needed during the reaction process. An exhaust port 7 is provided above the vacuum buffer tank 3. The vacuum buffer tank 3 compresses the inhaled gas and discharges it through the exhaust port 7. A liquid level sensor is provided in the inner cavity of the vacuum buffer tank 3. Sensor 19, a liquid inlet pipe 18 is installed on the vacuum buffer tank 3, a liquid replenishment port 8 is arranged at the end of the liquid inlet pipe 18, a solenoid valve 20 is installed on the liquid inlet pipe 18, an emptying pipe 10 is connected to the bottom of the vacuum buffer tank 3, and an emptying port 9 is installed on the emptying pipe 10, deionized water enters the vacuum buffer tank 3 from the liquid replenishment port 8 along the liquid inlet pipe 18, the deionized water is clean, and the service life of the mechanical seal is ensured, and the mechanical seal is cooled, a liquid level sensor 19 is arranged in the vacuum buffer tank 3, and the liquid level should be kept within the normal range, and a solenoid valve 20 is installed on the liquid inlet pipe 18, and the liquid level of the vacuum buffer tank 3 is automatically controlled. When the liquid level is low, water is replenished from the liquid replenishment port 8 When the liquid level is high, some of it is discharged from the drain pipe 10. The drain port 9 is connected to a filter box 21. A filter screen 23 is arranged in the filter box 21. An inspection port 24 is arranged on one side of the filter box 21, and the inspection port 24 corresponds to the position of the filter screen 23. A water outlet 22 is arranged at the bottom of the filter box 21. The filter box 21 is arranged behind the drain port 9. Solid impurities contained in the water discharged from the drain port 9 are filtered out by the filter screen 23 in the filter box 21. The inspection port 24 corresponds to the position of the filter screen 23. The filter screen 23 can be cleaned or replaced regularly from the inspection port 24. The filtered water is discharged from the water outlet 22 and then centrally processed to prevent environmental pollution.

[0033] In some embodiments, the air intake port 6 is connected to the second vacuum pump 2 through the air inlet pipe 15, the second vacuum pump 2 is connected to the second motor 5, the second vacuum pump 2 is connected to the vacuum buffer tank 3 and the plate heat exchanger 11 through a pipeline, the second motor 5 and the second vacuum pump 2 are started, and the polymerization reactor is evacuated through the air inlet pipe 15 to make it in a negative pressure state, and the extracted gas (containing water vapor) enters the vacuum buffer tank 3 along the air inlet pipe 15, and the plate heat exchanger cools the displacement reaction heat to keep the device within a certain temperature range and will not be affected by the excessively high reaction temperature; the device is provided with two groups of parallel vacuum pumping equipment, one group is the first vacuum pump 1 and the first motor 4 connected to the vacuum buffer tank 3 and the plate heat exchanger 11 through the air inlet pipe 15, and the other group is the second vacuum pump 2 and the second motor 5 connected to the vacuum buffer tank 3 and the plate heat exchanger 11 through the air inlet pipe 15. When performing the vacuum operation, only one group can be used for the vacuum operation, or both groups can be used at the same time, with high working efficiency and low power consumption.

[0034] In some embodiments, a support base 16 is installed under the first vacuum pump 1, the second vacuum pump 2, the first motor 4 and the second motor 5. The support base 16 mainly plays a fixed supporting role for the first vacuum pump 1, the second vacuum pump 2, the first motor 4 and the second motor 5.

[0035] It can be seen from the above technical scheme that a water ring vacuum pump, when in use, the air intake port 6 is connected to the polymerization reactor, the first motor 4 and the first vacuum pump 1 are started, the polymerization reactor is evacuated through the air inlet pipe 15 to make it in a negative pressure state, the extracted gas (containing water vapor) enters the vacuum buffer tank 3 along the air inlet pipe 15, the vacuum buffer tank 3 compresses the inhaled gas and discharges it through the exhaust port 7, and the deionized water enters the vacuum buffer tank 3 from the liquid replenishing port 8 along the liquid inlet pipe 18. The deionized water is clean, which ensures the service life of the machine seal and cools the machine seal. A liquid level sensor 19 is provided in the vacuum buffer tank 3, and the liquid level must be kept within the normal range. The liquid inlet pipe 18 is installed with a solenoid valve 20, and the automatic water level adjustment The liquid level of the vacuum buffer tank 3 is regulated. If it is low, water is added from the liquid replenishing port 8. If it is high, some water is discharged from the drain pipe 10. A filter box 21 is set behind the drain port 9. Solid impurities contained in the water discharged from the drain port 9 are filtered out by the filter screen 23 in the filter box 21. The inspection port 24 corresponds to the position of the filter screen 23. The filter screen 23 can be cleaned or replaced regularly from the inspection port 24. The filtered water is discharged from the water outlet 22 and then processed centrally to prevent environmental pollution. The device is provided with two sets of parallel vacuum pumping equipment. Only one set can be used for vacuum pumping operation, or both sets can be used at the same time. The sound insulation equipment 25 is covered on the device to prevent noise pollution caused by the operation of the motor and the vacuum pump during operation.

[0036] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the application disclosed herein. The present invention is intended to cover any variation, use or adaptation of the present invention, which follows the general principles of the present invention and includes common knowledge or customary technical means in the art disclosed by the present invention. The specification and examples are to be regarded as exemplary only, and the true scope of the present invention is indicated by the claims.

[0037] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention.

Claims

1. A water ring vacuum pump, characterized in that: It includes a sound insulation device (25) and an air intake (6); The sound insulation device is composed of a sound insulation board (26), sound insulation cotton (27) and a honeycomb sound absorbing board (28). The sound insulation device (25) is covered on the water ring vacuum pump. The bottom of the sound insulation device (25) is fixed to a fixing seat (29) with detachable bolts (30) around the four sides. The fixing seat (29) is fixed to the ground. The air intake port (6) is connected to a first vacuum pump (1) through an air intake pipe (15), the first vacuum pump (1) is connected to a first motor (4), the first vacuum pump (1) is connected to a vacuum buffer tank (3) and a plate heat exchanger (11) through a pipeline, the vacuum buffer tank (3) and the plate heat exchanger (11) are connected, an exhaust port (7) is provided above the vacuum buffer tank (3), a liquid inlet pipe (18) is installed on the vacuum buffer tank (3), a liquid replenishing port (8) is provided at the end of the liquid inlet pipe (18), an exhaust pipe (10) is connected below the vacuum buffer tank (3), an exhaust port (9) is installed on the exhaust pipe (10), the exhaust port (9) is connected to a filter box (21), and a water outlet (22) is provided at the bottom of the filter box (21).

2. A water ring vacuum pump according to claim 1, characterized in that: The air intake port (6) is connected to a second vacuum pump (2) via the air inlet pipe (15), the second vacuum pump (2) is connected to a second motor (5), and the second vacuum pump (2) is connected to the vacuum buffer tank (3) and the plate heat exchanger (11) via a pipeline.

3. A water ring vacuum pump according to claim 1, characterized in that: A filter screen (23) is provided in the filter box (21), and an inspection port (24) is provided on one side of the filter box (21), and the inspection port (24) corresponds to the position of the filter screen (23).

4. A water ring vacuum pump according to claim 1, characterized in that: The plate heat exchanger (11) is provided with a cooling water inlet (12) and a cooling water outlet (13), and the cooling water inlet (12) is connected to a cooling water inlet pipe (17).

5. A water ring vacuum pump according to claim 4, characterized in that: Valves (14) are installed on the exhaust pipe (10), the air inlet pipe (15), the cooling water inlet pipe (17) and the liquid inlet pipe (18).

6. The water ring vacuum pump according to claim 1, characterized in that: A liquid level sensor (19) is provided in the inner cavity of the vacuum buffer tank (3).

7. The water ring vacuum pump according to claim 1, characterized in that: A solenoid valve (20) is installed on the liquid inlet pipe (18).

8. The water ring vacuum pump according to claim 2, characterized in that: Support bases (16) are installed below the first vacuum pump (1), the second vacuum pump (2), the first motor (4) and the second motor (5).

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