CN210033829U - Electric efficient energy-saving oil ring type vacuum pump unit - Google Patents

Electric efficient energy-saving oil ring type vacuum pump unit Download PDF

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Publication number
CN210033829U
CN210033829U CN201920494831.7U CN201920494831U CN210033829U CN 210033829 U CN210033829 U CN 210033829U CN 201920494831 U CN201920494831 U CN 201920494831U CN 210033829 U CN210033829 U CN 210033829U
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oil
ball valve
vacuum pump
pipeline
oil ring
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王有志
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Hangzhou Feiyao Vacuum Pump Co Ltd
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Hangzhou Feiyao Vacuum Pump Co Ltd
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Abstract

The utility model discloses an energy-efficient oil ring formula vacuum pump unit of electric power, including induction port, gas vent, oil filler hole, cooling water outlet, drain, cooling water inlet, first motor, second motor, first oil ring vacuum pump, second oil ring vacuum pump, vapour and liquid separator, level gauge, oil and gas separator, shell and tube heat exchanger, oil water separator, plate heat exchanger, first normally open ball valve, first normally closed ball valve, second normally open ball valve, second normally closed ball valve, first vacuum check valve, third normally open ball valve, fourth normally open ball valve, third normally closed ball valve. The utility model discloses not only efficient, the energy consumption is also very low, and 40% -80% can be practiced thrift to the water ring pump and the jetting pump of its consumption than former use, and the water consumption is 0, has thoroughly solved the consumption of water resource, and energy-conserving effect is very showing to work vacuum ratio originally adopts water ring pump and jetting pump to have very big improvement, and the vacuum improvement of work directly can improve the generated energy of power plant.

Description

Electric efficient energy-saving oil ring type vacuum pump unit
Technical Field
The utility model relates to a vacuum pump technical field specifically is an energy-efficient oil ring formula vacuum pump unit of electric power.
Background
Reducing the exhaust pressure (vacuum) of a steam turbine is one of the important means for improving the cycle thermal efficiency of a power plant. There are two effective paths for maintaining the turbine back pressure (vacuum): firstly, sealing is strengthened, and air leakage is reduced; the other is to rely on a proper air pumping device. At present, the equipment adopted by the vacuum pumping system of the steam turbine generator unit of the power plant comprises a water jet air extractor and a water ring vacuum pump. Both of the above have significant disadvantages in maintaining the vacuum phase.
1. High energy consumption
The water ring vacuum pump needs water as working liquid, so that part of energy consumption of the motor is used as a pump impeller to throw water in a pump cavity to the periphery to form a water ring, so that the power consumption is high, the efficiency is low, generally about 30%, and better can reach 50%. And the air extraction amount is reduced obviously under high vacuum, and the energy consumption is not reduced.
The water jet steam extractor is an air extractor which is used for extracting gas in a condenser by using a water jet pump to provide high-flow-rate water to form a certain vacuum in an ejector, and the water jet pump is low in efficiency and high in energy consumption because the flow rate of the water is required to be high, the pipe resistance is inevitably large (the pipe resistance is in direct proportion to the cubic power of the flow rate), and a large part of work done by the water jet pump is consumed on the pipeline loss.
2. Large water consumption
The water injection steam extractor adopts water extracted from the water injection pool to circulate, the mixed gas of air and steam is extracted from the condenser and is used for solving the problem that a lot of steam is suspected to cause water to enter the water injection pool, so that the water temperature in the water injection pool is increased, and the water temperature in the water injection pool plays a role in determining the air extraction effect of the water injection sprayer, so that the lower water temperature of the water injection pool can be kept only by adding cold water into the water injection pool periodically and discharging hot water.
The water ring vacuum pump needs water as working fluid, and the larger the pump type is, the larger the water consumption is. The water circulation can generate heat, so that the higher the water temperature is, the worse the vacuum degree is, and the higher the water temperature is, the worse the air extraction efficiency of the vacuum pump is, especially in high-temperature weather in summer, many power plants have the phenomenon that the vacuum degree cannot meet the requirement in the high-temperature weather, and therefore the water tank of the water supply ring vacuum pump used for regular water supply in many power plants is used for replacing fresh cold water to enter, so that the air extraction capacity and the vacuum degree of the water ring vacuum pump are ensured. But the waste of water resources is serious, especially for a large water ring vacuum pump.
3. High vacuum degree low steam extraction efficiency
The vacuum degree of the water ring vacuum pump is low not only because of the structural limitation, but also more importantly because of the limitation of the saturated vapor pressure of the working fluid. 15-degree water is used as working liquid, and the limiting pressure can only reach 3000 Pa.
The water jet ejector is an equal-mass air extractor, and although air extraction has certain effect under the condition of low vacuum air density, the water jet ejector has limited vacuum extraction capability and unstable operation due to thin air and uneven flow rate when the vacuum degree is high.
4. Occupies large space
The water jet steam extractor device comprises a water jet pool, a water jet pump ejector and pipelines thereof, and the arrangement space of the water jet steam extractor device usually reaches an operation platform from zero meters of a steam engine room, so that the water jet steam extractor device occupies a large space and is not attractive.
Therefore, an electric efficient energy-saving oil ring type vacuum pump unit is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an energy-efficient oil ring formula vacuum pump unit of electric power to solve the problem that proposes in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: an electric efficient energy-saving oil ring type vacuum pump unit comprises an air suction port, an air exhaust port, an oil filling port, a cooling water outlet, a sewage discharge port, a cooling water inlet, a first motor, a second motor, a first oil ring vacuum pump, a second oil ring vacuum pump, a vapor-liquid separator, a liquid level meter, an oil-gas separator, a tube heat exchanger, an oil-water separator, a plate heat exchanger, a first normally open ball valve, a first normally closed ball valve, a second normally open ball valve, a second normally closed ball valve, a first vacuum check valve, a third normally open ball valve, a fourth normally open ball valve, a third normally closed ball valve, a fifth normally open ball valve, a first thermometer, a second thermometer, a sixth normally open ball valve, a first air suction connecting pipe, a second air suction pipe, a first exhaust pipe, a second vacuum check valve, a cavitation protection pipe, a first oil supply pipe, a second oil supply pipe, a working fluid pipeline, The gas suction device comprises a liquid discharge pipeline, an overflow pipeline and a cooling water pipeline, wherein the output end of a gas suction port is fixedly communicated with a first gas suction connecting pipe, one end of the first gas suction connecting pipe is fixedly communicated with a third normally-open ball valve and a sixth normally-open ball valve through the first gas suction pipeline, one ends, far away from the first gas suction pipeline, of the third normally-open ball valve and the sixth normally-open ball valve are fixedly communicated with a second vacuum check valve and a first vacuum check valve through a second gas suction pipeline, one ends, far away from the second gas suction pipeline, of the second vacuum check valve and the first vacuum check valve are fixedly communicated with a second oil ring vacuum pump and a first oil ring vacuum pump, one ends, far away from the second gas suction pipeline, of the first oil ring vacuum pump and one end of a gas-liquid separator are fixedly connected with a first motor and a second motor respectively, one end of the first oil ring vacuum pump is fixedly communicated with one end of the gas-liquid separator One end of the top of the gas-liquid separator is fixedly communicated with an exhaust port through the oil-gas separator, the input end of the gas-liquid separator is fixedly communicated with an oil filling port, the output ends of the first oil ring vacuum pump and the second oil ring vacuum pump are respectively provided with a first normally closed ball valve and a second normally closed ball valve, the joint of the first normally closed ball valve and the second normally closed ball valve is fixedly communicated with one end of the gas-liquid separator through a cavitation protection pipeline, the output ends of the first oil ring vacuum pump and the second oil ring vacuum pump are fixedly communicated with a first normally open ball valve and a second normally open ball valve, one ends of the first normally open ball valve and the second normally open ball valve, which are far away from the first oil ring vacuum pump and the second oil ring vacuum pump, are respectively fixedly communicated with a first oil supply pipeline and a second oil supply pipeline, one end of the first thermometer is communicated with the plate heat exchanger, and the input end, one end of the gas-liquid separator is fixedly communicated with the tube still heat exchanger through a liquid discharge pipeline, the output end of the liquid discharge pipeline is fixedly communicated with the cooling water outlet, the bottom of the tube still heat exchanger is fixedly communicated with an oil-water separator, the bottom of the oil-water separator is fixedly communicated with a sewage discharge outlet through a third normally closed ball valve, one end of the plate heat exchanger is fixedly communicated with one end of the tube heat exchanger through a working liquid pipeline, a second thermometer is arranged on the surface of the working liquid pipeline, a fourth normally open ball valve is arranged on the working liquid pipeline at the mutual connection part of the plate heat exchanger and the tube heat exchanger, one end of the plate heat exchanger is fixedly communicated with one end of the tube heat exchanger through a cooling water pipeline, and a fifth normally-open ball valve is arranged on the surface of the cooling water pipeline, and the output end of the gas-liquid separator is fixedly communicated with a sewage draining outlet through an overflow pipeline.
Preferably, one side of the vapor-liquid separator is provided with a liquid level meter.
Preferably, the oil is used as the working fluid and can be recycled, and the saturation vapor pressure of the oil used as the working fluid is higher than that of water at the same temperature, so that the ultimate vacuum degree of the vacuum pump is improved by 2000PA absolute pressure.
Preferably, the inside of the gas-liquid separator is provided with two baffles and an exhaust elbow.
Preferably, the oil-gas separator is internally provided with a plurality of layers of clapboards, so that oil mist carried along with exhaust airflow can be effectively separated to reduce oil loss, and the gas is exhausted through the exhaust port after passing through the plurality of layers of clapboards.
Preferably, the tubular heat exchanger is internally provided with a heat exchange tube and a baffle plate, and oil is primarily cooled in the tubular heat exchanger and is subjected to oil-water separation under the action of the baffle plate.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the vacuum degree is improved by 2000PA, and the generating capacity is increased;
2. the water consumption is 0: because the oil is used as the working fluid and is recycled, the water is used 0, a large amount of water resources are saved, and the production cost is saved;
3. the efficiency is high under high vacuum;
4. the gas-liquid separator has obvious separation effect and reduces the exhaust pressure: two baffles and exhaust elbows are additionally arranged in the gas-liquid separator, so that the separation effect can be improved, and the exhaust resistance can be reduced, thereby reducing the working current during operation;
5. the loss of oil is reduced, and the generation of exhaust oil stains is reduced;
6. oil-water effective separation: the oil and water can be effectively separated through the special structures of the tubular heat exchanger and the oil-water separator, so that the emulsification of the oil is reduced, and a foundation is laid for providing vacuum degree and air extraction efficiency;
7. the working fluid can be cooled to the most reasonable temperature through the two cooling of the tube heat exchanger and the plate heat exchanger, so that the efficiency of the vacuum pump can exert the maximum value;
8. the noise is low: the cavitation noise generated under high vacuum due to the saturated vapor pressure of the liquid can be eliminated by opening the valve of the cavitation protection pipeline;
9. small, simple to operate: the machine set supplies materials for the whole set of equipment, and the field dark turning is simple and convenient;
10. the utility model discloses not only efficient, the energy consumption is also very low, and 40% -80% can be practiced thrift than former water ring pump and the jetting pump of using to its consumption, and the water consumption is 0, has thoroughly solved the consumption of water resource, and energy-conserving effect is very showing. And the working vacuum is greatly improved compared with the original water ring pump and water jet pump, and the improvement of the working vacuum can directly improve the generating capacity of a power plant.
Drawings
Fig. 1 is a schematic view of the front view structure of the present invention.
In the figure: 1 air suction port, 2 air exhaust ports, 3 oil filling ports, 4 cooling water outlets, 5 sewage outlets, 6 cooling water inlets, 7 first motors, 8 second motors, 9 first oil ring vacuum pumps, 10 second oil ring vacuum pumps, 11 vapor-liquid separators, 12 liquid level meters, 13 oil-gas separators, 14 tube-in-tube heat exchangers, 15 oil-water separators, 16 plate heat exchangers, 17 first normally-open ball valves, 18 first normally-closed ball valves, 19 second normally-open ball valves, 20 second normally-closed ball valves, 21 first vacuum check valves, 22 third normally-open ball valves, 23 fourth normally-open ball valves, 24 third normally-closed ball valves, 25 fifth normally-open ball valves, 26 first thermometers, 27 second thermometers, 28 sixth normally-open ball valves, 29 first air suction pipelines, 30 first air suction communicating tubes, 31 second air suction pipelines, 32 first air discharge pipelines, 33 second air discharge pipelines, 34 second vacuum check valves, 35 cavitation protection pipelines, 36 a first oil supply line, 37 a second oil supply line, 38 a working fluid line, 39 a drain line, 40 an overflow line, 41 a cooling water line.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: an electric efficient energy-saving oil ring type vacuum pump unit comprises an air suction port 1, an air exhaust port 2, an oil filling port 3, a cooling water outlet 4, a sewage discharge port 5, a cooling water inlet 6, a first motor 7, a second motor 8, a first oil ring vacuum pump 9, a second oil ring vacuum pump 10, a vapor-liquid separator 11, a liquid level meter 12, an oil-gas separator 13, a tube heat exchanger 14, an oil-water separator 15, a plate heat exchanger 16, a first normally open ball valve 17, a first normally closed ball valve 18, a second normally open ball valve 19, a second normally closed ball valve 20, a first vacuum check valve 21, a third normally open ball valve 22, a fourth normally open ball valve 23, a third normally closed ball valve 24, a fifth normally open ball valve 25, a first thermometer 26, a second thermometer 27, a sixth thermometer 28, a first air suction pipeline 29, a first air suction connecting pipe 30, a second air suction pipeline 31, a first exhaust pipeline 32, a second exhaust pipeline 33, a first, A second vacuum check valve 34, a cavitation protection pipeline 35, a first oil supply pipeline 36, a second oil supply pipeline 37, a working fluid pipeline 38, a liquid discharge pipeline 39, an overflow pipeline 40 and a cooling water pipeline 41, wherein the output end of the air suction port 1 is fixedly communicated with the first air suction connecting pipe 30, one end of the first air suction connecting pipe 30 is respectively and fixedly communicated with a third normally open ball valve 22 and a sixth normally open ball valve 28 through a first air suction pipeline 29, one ends of the third normally open ball valve 22 and the sixth normally open ball valve 28, which are far away from the first air suction pipeline 29, are respectively and fixedly communicated with a second vacuum check valve 34 and a first vacuum check valve 21 through a second air suction pipeline 31, one ends of the second vacuum check valve 34 and the first vacuum check valve 21, which are far away from the second air suction pipeline 31, are fixedly communicated with a second oil ring vacuum pump 10 and a first oil ring vacuum pump 9, one ends of the first oil ring vacuum pump 9 and the second oil ring vacuum pump 10 are respectively and fixedly connected with, one end of the first oil ring vacuum pump 9 is fixedly communicated with one end of a gas-liquid separator 11 through a first exhaust pipeline 32, one side of the gas-liquid separator 11 is provided with a liquid level meter 12, two baffles and exhaust elbows are arranged inside the gas-liquid separator 11, the baffles and the elbows are mainly used for effectively flowing liquid to areas on two sides of the gas-liquid separator 11 so as to be beneficial to oil and gas separation, oil and gas are primarily separated in the gas-liquid separator 11, the separated oil is precipitated in the gas-liquid separator 11, the gas enters the oil-gas separator 13 through exhaust gas flow, one end of the second oil ring vacuum pump 10 is fixedly communicated with one end of the gas-liquid separator 11 through a second exhaust pipeline 33, one end of the top of the gas-liquid separator 11 is fixedly communicated with an exhaust port 2 through the oil-gas separator 13, and the input end of the gas-liquid separator 11 is fixedly communicated with an, the output ends of the first oil ring vacuum pump 9 and the second oil ring vacuum pump 10 are respectively provided with a first normally closed ball valve 18 and a second normally closed ball valve 20, the joint of the first normally closed ball valve 18 and the second normally closed ball valve 20 is fixedly communicated with one end of the vapor-liquid separator 11 through a cavitation protection pipeline 35, the output ends of the first oil ring vacuum pump 9 and the second oil ring vacuum pump 10 are fixedly communicated with a first normally open ball valve 17 and a second normally open ball valve 19, one ends of the first normally open ball valve 17 and the second normally open ball valve 19, which are far away from the first oil ring vacuum pump 9 and the second oil ring vacuum pump 10, are respectively and fixedly communicated with a first thermometer 26 through a first oil supply pipeline 36 and a second oil supply pipeline 37, one end of the first thermometer 26 is mutually communicated with the plate heat exchanger 16, the input end of the plate heat exchanger 16 is fixedly communicated with the cooling water inlet 6, one end of the vapor-liquid separator 11 is fixedly communicated with the tube heat, the output end of the drainage pipeline 39 is fixedly communicated with the cooling water outlet 4, the bottom of the tubular heat exchanger 14 is fixedly communicated with the oil-water separator 15, the bottom of the oil-water separator 15 is fixedly communicated with the sewage discharge outlet 5 through the third normally-closed ball valve 24, one end of the plate heat exchanger 16 is fixedly communicated with one end of the tubular heat exchanger 14 through the working liquid pipeline 38, the surface of the working liquid pipeline 38 is provided with the second thermometer 27, the working liquid pipeline 38 at the interconnection position of the plate heat exchanger 16 and the tubular heat exchanger 14 is provided with the fourth normally-open ball valve 23, one end of the plate heat exchanger 16 is fixedly communicated with one end of the tubular heat exchanger 14 through the cooling water pipeline 41, the surface of the cooling water pipeline 41 is provided with the fifth normally-open ball valve 25, a multilayer partition plate is arranged in the oil-water separator 13, and oil mist entrained along with exhaust airflow can be effectively separated so as to reduce oil loss, gas rethread gas vent 2 discharges behind the multilayer baffle, the inside of oil process drainage pipe way 39 entering shell and tube heat exchanger 14 after the sediment, and there are heat exchange tube and baffling board in the shell and tube heat exchanger 14, oil carries out primary cooling and carries out oil water separation under the effect of baffling board in the shell and tube heat exchanger 14, because the density of water is higher than oil, so the water after the separation deposits to oil water separator 15's bottom so that discharge through opening first normally closed ball valve 18 and second normally closed ball valve 20 through drain 5, the output of vapour and liquid separator 11 passes through overflow pipeline 40 and the fixed intercommunication of drain 5, oil is as the working solution and can recycle in this application, utilizes the saturated vapor pressure that oil is as the working solution to be higher than the saturated pressure of water so the absolute pressure of 2000PA of the extreme vacuum degree limit of this application under equal temperature.
When in use, firstly, before operation, a proper amount of vacuum pump oil or No. 46 turbine oil is added into the gas-liquid separator 11, then the first oil ring vacuum pump 9 and the second oil ring vacuum pump 10 are started, the pumped gas is sucked into the first gas suction communicating pipe 30 through the gas suction port 1, and then enters the first oil ring vacuum pump 9 and the second oil ring vacuum pump 10 through the second gas suction pipeline 31; the first vacuum check valve 21 and the second vacuum check valve 34 are used for preventing the vacuum in the system from sucking the oil in the first oil ring vacuum pump 9 and the second oil ring vacuum pump 10 back into the system when the system is stopped, and the first motor 7 and the second motor 8 provide driving force for the first oil ring vacuum pump 9 and the second oil ring vacuum pump 10; the gas pumped in is compressed in the first oil ring vacuum pump 9 and the second oil ring vacuum pump 10 and then is discharged to the interior of the gas-liquid separator 11 through the first exhaust pipeline 32 and the second exhaust pipeline 33, the side surface of the gas-liquid separator 11 is provided with the liquid level meter 12, the liquid level meter 12 is used for indicating the liquid level position in the gas-liquid separator 11, when the liquid level is too low, oil is added through the oil adding port 3, and when the liquid level is too high, the liquid is automatically discharged through the overflow pipeline 40, and two baffles and exhaust elbows are arranged in the gas-liquid separator 11, the baffles and the exhaust elbows are arranged in the gas-liquid separator 11, the main functions of the baffles and the elbows are that the liquid effectively flows to the two side areas of the gas-liquid separator 11, the oil and the gas are separated primarily in the gas-liquid separator 11, the separated oil is deposited in the gas-liquid separator 11, and the gas enters the interior of the oil-gas separator 13, the oil-gas separator 13 is internally provided with a plurality of layers of clapboards, oil mist carried along with exhaust airflow can be effectively separated to reduce oil loss, the gas is discharged through the exhaust port 2 after passing through the plurality of layers of clapboards, precipitated oil enters the inside of the tubular heat exchanger 14 through the liquid discharge pipeline 39, the tubular heat exchanger 14 is internally provided with a heat exchange pipe and a baffle plate, the oil is preliminarily cooled in the tubular heat exchanger 14 and is subjected to oil-water separation under the action of the baffle plate, the density of the water is higher than that of the oil, the separated water is precipitated to the bottom of the oil-water separator 15 so as to be discharged through the drain outlet 5 by opening the first normally closed ball valve 18 and the second normally closed ball valve 20, the oil enters the plate heat exchanger 16 through the working liquid pipeline 38 for cooling again, the first thermometer 26 and the second thermometer 27 are used for displaying the temperature of the working liquid before and after cooling, the oil is sucked into the first oil ring 9 and the second oil ring 37 through the first oil supply pipeline 36 and the second oil supply The ring vacuum pump 10 is repeatedly operated. When the vacuum level is too high, cavitation noise is generated, and the cavitation protection circuit 35 may be opened to eliminate the cavitation noise.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an energy-efficient oil ring formula vacuum pump unit of electric power, including induction port (1), gas vent (2), oil filler (3), cooling water outlet (4), drain (5), cooling water inlet (6), first motor (7), second motor (8), first oil ring vacuum pump (9), second oil ring vacuum pump (10), vapour and liquid separator (11), level gauge (12), oil and gas separator (13), shell and tube heat exchanger (14), oil-water separator (15), plate heat exchanger (16), first normally open ball valve (17), first normally closed ball valve (18), second normally open ball valve (19), second normally closed ball valve (20), first vacuum check valve (21), third normally open ball valve (22), fourth normally open ball valve (23), third normally open ball valve (24), fifth normally open ball valve (25), first thermometer (26), Second thermometer (27), sixth normally open ball valve (28), first air suction pipeline (29), first connecting pipe (30) of breathing in, second air suction pipeline (31), first exhaust pipeline (32), second exhaust pipeline (33), second vacuum check valve (34), cavitation protection pipeline (35), first oil supply pipeline (36), second oil supply pipeline (37), working fluid pipeline (38), fluid-discharge pipeline (39), overflow pipeline (40) and cooling water pipeline (41), its characterized in that: the output end of the air suction port (1) is fixedly communicated with a first air suction connecting pipe (30), one end of the first air suction connecting pipe (30) is respectively and fixedly communicated with a third normally-open ball valve (22) and a sixth normally-open ball valve (28) through a first air suction pipeline (29), one ends, far away from the first air suction pipeline (29), of the third normally-open ball valve (22) and the sixth normally-open ball valve (28) are respectively and fixedly communicated with a second vacuum check valve (34) and a first vacuum check valve (21) through a second air suction pipeline (31), one ends, far away from the second air suction pipeline (31), of the second vacuum check valve (34) and the first vacuum check valve (21) are respectively and fixedly communicated with a second oil ring vacuum pump (10) and a first oil ring vacuum pump (9), one ends of the first oil ring vacuum pump (9) and the second oil ring vacuum pump (10) are respectively and fixedly connected with a first motor (7) and a second motor (8), one end of the first oil ring vacuum pump (9) is fixedly communicated with one end of the gas-liquid separator (11) through a first exhaust pipeline (32), one end of the second oil ring vacuum pump (10) is fixedly communicated with one end of the gas-liquid separator (11) through a second exhaust pipeline (33), one end of the top of the gas-liquid separator (11) is fixedly communicated with the exhaust port (2) through an oil-gas separator (13), the input end of the gas-liquid separator (11) is fixedly communicated with the oil filling port (3), the output ends of the first oil ring vacuum pump (9) and the second oil ring vacuum pump (10) are respectively provided with a first normally closed ball valve (18) and a second normally closed ball valve (20), the joint of the first normally closed ball valve (18) and the second normally closed ball valve (20) is fixedly communicated with one end of the gas-liquid separator (11) through a cavitation protection pipeline (35), and the output ends of the first oil ring vacuum pump (9) and the second oil ring vacuum pump (10) are fixedly communicated with a first The oil-water separator comprises a ball opening valve (17) and a second normally-open ball valve (19), wherein one ends of the first normally-open ball valve (17) and the second normally-open ball valve (19), which are far away from a first oil ring vacuum pump (9) and a second oil ring vacuum pump (10), are fixedly communicated with a first thermometer (26) through a first oil supply pipeline (36) and a second oil supply pipeline (37) respectively, one end of the first thermometer (26) is communicated with a plate heat exchanger (16) in a penetrating manner, the input end of the plate heat exchanger (16) is fixedly communicated with a cooling water inlet (6), one end of a gas-liquid separator (11) is fixedly communicated with a tubular heat exchanger (14) through a liquid discharge pipeline (39), the output end of the liquid discharge pipeline (39) is fixedly communicated with a cooling water outlet (4), the bottom of the tubular heat exchanger (14) is fixedly communicated with an oil-water separator (15), and the bottom of the oil-water separator (15) is fixedly communicated with a sewage drain outlet (5) through a third ball valve (24, the one end of plate heat exchanger (16) is passed through the fixed intercommunication of one end of working solution pipeline (38) and shell and tube heat exchanger (14), the surface of working solution pipeline (38) is provided with second thermometer (27), working solution pipeline (38) of plate heat exchanger (16) and shell and tube heat exchanger (14) interconnect department are provided with fourth normally open ball valve (23), the one end of plate heat exchanger (16) is passed through the fixed intercommunication of one end of condenser tube way (41) and shell and tube heat exchanger (14), the surface of condenser tube way (41) is provided with fifth normally open ball valve (25), the output of vapour and liquid separator (11) passes through overflow pipeline (40) and the fixed intercommunication of drain (5).
2. An electric efficient energy-saving oil ring type vacuum pump unit as claimed in claim 1, characterized in that: and a liquid level meter (12) is arranged on one side of the vapor-liquid separator (11).
3. An electric efficient energy-saving oil ring type vacuum pump unit as claimed in claim 1, characterized in that: two baffles and an exhaust elbow are arranged inside the gas-liquid separator (11).
4. An electric efficient energy-saving oil ring type vacuum pump unit as claimed in claim 1, characterized in that: the oil-gas separator (13) is internally provided with a plurality of layers of clapboards, so that oil mist carried along with exhaust airflow can be effectively separated to reduce oil loss, and the gas is exhausted through the exhaust port (2) after passing through the plurality of layers of clapboards.
5. An electric efficient energy-saving oil ring type vacuum pump unit as claimed in claim 1, characterized in that: the tubular heat exchanger (14) is internally provided with a heat exchange tube and a baffle plate, and oil is primarily cooled in the tubular heat exchanger (14) and is subjected to oil-water separation under the action of the baffle plate.
CN201920494831.7U 2019-04-12 2019-04-12 Electric efficient energy-saving oil ring type vacuum pump unit Active CN210033829U (en)

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Application Number Priority Date Filing Date Title
CN201920494831.7U CN210033829U (en) 2019-04-12 2019-04-12 Electric efficient energy-saving oil ring type vacuum pump unit

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Application Number Priority Date Filing Date Title
CN201920494831.7U CN210033829U (en) 2019-04-12 2019-04-12 Electric efficient energy-saving oil ring type vacuum pump unit

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CN210033829U true CN210033829U (en) 2020-02-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112344215A (en) * 2020-09-18 2021-02-09 南通新金丰皮革机械有限公司 Vacuum system liquid feeding device for leather

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112344215A (en) * 2020-09-18 2021-02-09 南通新金丰皮革机械有限公司 Vacuum system liquid feeding device for leather

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