Vacuum pump with self-heating heat exchange function device

Abstract

The utility model relates to a vacuum pump with a self-heating heat exchange function device in the field of vacuum pumps, which comprises a cabinet, a first pump body and a second pump body, a controller is arranged on the side face of the cabinet, and a central heat exchanger is arranged in the cabinet. The first pump body and the second pump body communicate with the central heat exchanger through a first connecting pipe and a second connecting pipe correspondingly, a gas heat exchange assembly is arranged in the central heat exchanger, a heat exchange cooling area is formed in the central heat exchanger, a cooling circulation pipe is arranged on the side face of the central heat exchanger, and the cooling circulation pipe is connected with a first-stage heat exchanger. The first pump body is connected with a central heat exchanger, the second pump body is connected with a heat exchange silencer, a gas silencing heat exchange assembly is formed in the heat exchange silencer, a heat exchange circulating pipe is arranged on the side face of the heat exchange silencer, and the heat exchange circulating pipe is connected with a second-stage heat exchanger. And the energy utilization efficiency of the system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum pump field, concretely relates to a vacuum pump with self -heating heat exchange function device. BACKGROUND

[0002] As an important industrial equipment, vacuum pumps play a key role in many industries. They have a wide range of applications, including but not limited to the chemical industry, the semiconductor photovoltaic industry, the aerospace industry, the medical field, the metallurgical industry, environmental monitoring and control, and the papermaking industry. Vacuum pumps are widely used in vacuum drying, vacuum cooling, vacuum concentration, vacuum extraction and vacuum packaging. Vacuum pumps are used to create a vacuum environment to meet the high requirements for product purity and quality.

[0003] There are various types of vacuum pumps, including water ring vacuum pumps, rotary vane vacuum pumps, and Roots pumps. Water ring vacuum pumps use rotating impellers to throw water into the pump casing to form a water ring, thereby achieving gas suction and discharge. Rotary vane vacuum pumps are oil-sealed mechanical vacuum pumps that can be used alone or as a pre-pump for other high or ultra-high vacuum pumps. The working principle of a Roots pump is similar to that of a Roots blower. Gas is sucked into the space between the rotor and the pump casing through the continuous rotation of the rotor, and then discharged through the exhaust port.

[0004] However, despite the widespread application of existing vacuum pumps in various fields, they still have some defects. First, the high-temperature gas generated by the traditional vacuum pump during its vacuum compression is generally directly discharged into the external air, resulting in a higher temperature in the workshop environment, which affects the service life and working efficiency of the vacuum pump and pollutes the workshop environment. Second, the heat in the existing vacuum pump is not easily released, causing the temperature of the vacuum pump cavity to rise, which can cause the rotor and the inner wall of the cavity to rub or become stuck, thereby affecting the operation of the vacuum pump. In addition, the existing vacuum pump lacks a structure for recycling high-temperature gas, which affects the use of the vacuum pump and wastes heat resources, making it difficult to recover heat and limiting the structure and function of the vacuum pump.

[0005] In addition, the existing vacuum pump's heat exchange structure is relatively simple, resulting in low heat exchange efficiency and inaccurate heat exchange control, which often cannot meet the requirements. Therefore, there is an urgent need for a new type of vacuum pump with self-heating heat exchange function device to improve heat exchange efficiency, optimize heat recovery, and enhance control precision, thereby meeting the diverse needs of industrial production and scientific research. UTILITY MODEL CONTENT

[0006] The utility model discloses a kind of vacuum pumps with self-heating heat exchange function device, to solve the technical problem that the heat generated by the existing vacuum pump is not easy to recover, resulting in direct discharge of heat causing environmental pollution, affecting the working use of vacuum pump, and the heat recovery method of existing vacuum pump is inefficient, not easy to carry out stable and efficient heat recovery, thereby affecting the stable use of vacuum pump.

[0007] The utility model discloses a kind of vacuum pumps with self-heating heat exchange function device, to solve the technical problem that the heat generated by the existing vacuum pump is not easy to recover, resulting in direct discharge of heat causing environmental pollution, affecting the working use of vacuum pump, and the heat recovery method of existing vacuum pump is inefficient, not easy to carry out stable and efficient heat recovery, thereby affecting the stable use of vacuum pump.

[0008] A kind of vacuum pump with self-heating heat exchange function device, including cabinet, the first pump body and second pump body being set in cabinet, the side of cabinet is provided with controller, air inlet end is formed on the first pump body, central heat exchanger is provided in the cabinet, the first pump body and second pump body are installed on central heat exchanger, and the first pump body and second pump body are communicated with central heat exchanger by first connecting pipe and second connecting pipe respectively, the inside of central heat exchanger is provided with gas heat exchange assembly for communicating first connecting pipe and second connecting pipe, and the inside of central heat exchanger is formed with heat exchange cooling area for heat exchange cooling gas heat exchange assembly, the side of central heat exchanger is provided with cooling circulation pipe communicated with heat exchange cooling area, one end of cooling circulation pipe extends outward and is connected with primary heat exchanger, second pump body is connected with heat exchange silencer by air outlet end, gas silencing heat exchange assembly is formed in the inside of heat exchange silencer, and heat exchange silencer is provided with silencing air outlet communicated with gas silencing heat exchange assembly, heat exchange area for heat exchange gas silencing heat exchange assembly is formed in heat exchange silencer, the side of heat exchange silencer is provided with heat exchange circulation pipe communicated with heat exchange area, one end of heat exchange circulation pipe extends outward and is connected with secondary heat exchanger.

[0009] Further in the above description, the gas heat exchange assembly includes two sealing plates and a plurality of hollow condenser tubes connected to the two sealing plates, the two sealing plates are sealingly installed in the inside of the central heat exchanger, the heat exchange cooling area is sealingly formed between the two sealing plates, the inside of the central heat exchanger is sealingly spaced by the sealing plates to form two gas flow areas distributed at both ends of the heat exchange cooling area, the two ends of the condenser tubes are connected to the two sealing plates, and the end portions of the condenser tubes communicate with the gas flow areas through the sealing plates.

[0010] Further in the above description, the first pump body and the second pump body are communicated with one gas flow area through the first connecting pipe and the second connecting pipe, so that the gas generated by the driving of the first pump body enters one gas flow area in the central heat exchanger through the first connecting pipe, passes through the hollow condenser tubes and the other gas flow area in the central heat exchanger, and is guided into the second pump body through the second connecting pipe to form a double-stage vacuum.

[0011] Further in the above description, the cooling circulation pipe comprises a cooling liquid inlet pipe and a cooling liquid return pipe, one end of the cooling liquid inlet pipe extends to the primary heat exchanger and communicates with the primary heat exchanger, and the other end of the cooling liquid inlet pipe and the cooling liquid return pipe extends to the central heat exchanger and communicates with the heat exchange cooling area, and the cooling liquid inlet pipe is connected with the primary heat exchanger through the first water pump.

[0012] The cooling medium of the primary heat exchanger can continuously circulate into the heat exchange cooling area of the central heat exchanger to continuously take away the heat generated in the gas heat exchange process, ensure the persistence and stability of the cooling effect, and further improve the heat exchange effect of the high-temperature gas on the first pump body, so that the cooling and temperature reduction process can be carried out.

[0013] Further in the above description, the first pump body and the second pump body are provided with motor boxes and gear boxes, the cooling liquid inlet pipe is connected with a motor liquid inlet pipe and a gear liquid inlet pipe for heat exchange cooling of the motor boxes and the gear boxes through a connecting valve, and the cooling liquid return pipe is connected with a motor liquid return pipe and a gear liquid return pipe for liquid circulation communication with the motor boxes and the gear boxes through a mounting valve.

[0014] The motor liquid inlet pipe and the gear liquid inlet pipe can guide the cooling medium of the primary heat exchanger into the motor boxes and the gear boxes of the pump body, so that the heat exchange cooling of the parts in the motor boxes and the gear boxes can be carried out, the friction or jamming of the rotor in the pump body is further reduced, and the stability and reliability of the operation and use of the first pump body and the second pump body are enhanced.

[0015] Further in the above description, the heat exchange silencer is formed with a sound insulation air inlet communicating with a gas sound insulation and heat exchange assembly, the gas outlet end of the second pump body communicates with the sound insulation air inlet through an exhaust pipe, and the gas sound insulation and heat exchange assembly comprises two partitions and a plurality of hollow condensation sound insulation pipes, the two partitions are sealingly installed in the heat exchange silencer, a heat exchange area is sealingly formed between the two partitions, the heat exchange silencer is formed with two gas circulation areas distributed at two ends of the heat exchange area through the sealing spacing of the two partitions, the two ends of the condensation sound insulation pipe are connected with the two partitions, and the end of the condensation sound insulation pipe communicates with the gas circulation area through the partition.

[0016] The heat exchange silencer can carry out sound insulation treatment on the generated compressed air, the structure design of the condensation sound insulation pipe absorbs and blocks the sound, effectively reduces the noise generated by the gas flow, and improves the working environment.

[0017] The two partitions are installed in the heat exchange silencer to form the heat exchange area and the two gas circulation areas, and the two gas circulation areas are communicated through the condensation heat exchange pipe, so as to ensure the orderly flow and sufficient heat exchange of the gas in the heat exchange silencer, and improve the heat exchange efficiency and sound insulation effect.

[0018] Further in the above description, the heat exchange circulation pipe comprises a heat exchange liquid inlet pipe and a heat exchange liquid return pipe, one end of the heat exchange liquid inlet pipe and the heat exchange liquid return pipe extends to the heat exchange muffler and communicates with the heat exchange zone, and the other end of the heat exchange liquid inlet pipe and the heat exchange liquid return pipe extends to the secondary heat exchanger and communicates with the secondary heat exchanger, and the heat exchange liquid inlet pipe is connected with the secondary heat exchanger through the second water pump.

[0019] The secondary heat exchanger can store and preserve the heat absorbed in the heat exchange process, facilitating the subsequent use of the heat medium and improving the energy utilization rate.

[0020] Further in the above description, the primary heat exchanger is composed of a cooling tower or a heat energy storage tank.

[0021] Optionally, in some embodiments, the primary heat exchanger is composed of a cooling tower, which can enhance the heat exchange cooling of the first pump body and the second pump body, thereby realizing efficient cooling treatment and facilitating the stable use of the vacuum pump.

[0022] Optionally, in some embodiments, the primary heat exchanger is composed of a heat energy storage tank, which can store and preserve the heat absorbed in the heat exchange process, facilitating the subsequent use of the heat medium and improving the energy utilization rate.

[0023] The utility model discloses the beneficial effects of:

[0024] The first connecting pipe and the second connecting pipe are communicated with the central heat exchanger, the high-temperature gas generated by the first pump body is heat-exchanged and cooled through the gas heat exchange assembly in the central heat exchanger, the heat exchange and cooling zone can effectively heat-exchange and cool the gas heat exchange assembly through the communication of the cooling circulation pipe, the vacuum pump is prevented from being damaged by overheating, the connection between the cooling circulation pipe and the primary heat exchanger ensures the continuous supply of the cooling medium, the heat dissipation and cooling effect of the first pump body is further improved, the gas can smoothly enter the second pump body through the connection between the second connecting pipe and the second pump body, and the heat exchanger muffler is connected through the gas outlet end, the gas noise treatment is realized, the noise pollution is reduced, the heat is recovered through the internal gas noise heat exchange assembly, the heat exchange zone is connected with the secondary heat exchanger through the heat exchange circulation pipe, the heat generated by the pump body can be recycled, the heat generated in the heat exchange process can be stored through the primary heat exchanger and the secondary heat exchanger, and the energy utilization efficiency and the stable use of the vacuum pump are improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the whole structure perspective view of front view angle of this embodiment one;

[0026] Figure 2 It is the whole structure perspective view of rear view angle of this embodiment one;

[0027] Figure 3 is a schematic view of the internal structure of the cabinet in the embodiment;

[0028] Figure 4 is a schematic view of the mounting connection structure of the first pump body and the second pump body in the embodiment;

[0029] Figure 5 is a schematic view of the connection structure of the cooling circulation pipe in the embodiment;

[0030] Figure 6 is a perspective view of the central heat exchanger in the embodiment;

[0031] Figure 7 is a planar sectional view of the central heat exchanger in the embodiment;

[0032] Figure 8 is a schematic view of the internal structure of the central heat exchanger in the embodiment;

[0033] Figure 9 is a schematic view of the internal structure of the heat exchange silencer in the embodiment;

[0034] Figure 10 is a schematic view of the connection structure of the two cooling towers in the embodiment;

[0035] In the drawings, the reference numerals are as follows: 1-cabinet, 2-first pump body, 3-second pump body, 4-controller, 5-central heat exchanger, 6-first connecting pipe, 7-second connecting pipe, 8-gas heat exchange assembly, 81-sealing plate, 82-condensation pipe, 9-heat exchange cooling area, 10-cooling tower, 11-heat exchange silencer, 12-silencing air outlet, 13-heat exchange area, 14-two-stage heat exchanger, 15-gas flow area, 16-cooling liquid inlet pipe, 17-cooling liquid return pipe, 18-motor box, 19-gear box, 20-motor liquid inlet pipe, 21-gear liquid inlet pipe, 22-motor liquid return pipe, 23-gear liquid return pipe, 24-silencing air inlet, 25-exhaust pipe, 26-gas silencing heat exchange assembly, 261-baffle, 262-condensation silencing pipe, 27-gas circulation area, 28-baffle, 29-air inlet circulation area, 30-exhaust circulation area, 31-heat exchange liquid inlet pipe, 32-heat exchange liquid return pipe, 33-second water pump, 34-water return port, 35-hot water outlet. DETAILED DESCRIPTION

[0036] The utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0037] Embodiment one

[0038] In this embodiment, refer to Figures 1-9The specific implementation of the vacuum pump with the self-heating heat exchange function device comprises a cabinet 1, a first pump body 2 and a second pump body 3 arranged in the cabinet 1, a controller 4 arranged on the side of the cabinet 1, an air inlet end formed on the first pump body 2, a central heat exchanger 5 arranged in the cabinet 1, the first pump body 2 and the second pump body 3 being installed on the central heat exchanger 5 and being in communication with the central heat exchanger 5 through a first connecting pipe 6 and a second connecting pipe 7 respectively, a gas heat exchange assembly 8 arranged in the central heat exchanger 5 and used for communicating the first connecting pipe 6 and the second connecting pipe 7, a heat exchange and cooling area 9 formed in the central heat exchanger 5 and used for heat exchange and cooling of the gas heat exchange assembly 8, a cooling circulation pipe arranged on the side of the central heat exchanger 5 and in communication with the heat exchange and cooling area 9, a first heat exchanger 10 connected to an outer end of the cooling circulation pipe and used for storing and recycling heat conducted from the heat exchange and cooling area 9, a heat exchange silencer 11 connected to the air outlet end of the second pump body 3, a gas silencing and heat exchange assembly 26 formed in the heat exchange silencer 11, a silencing air outlet 12 arranged on the heat exchange silencer 11 and in communication with the gas silencing and heat exchange assembly 26, a heat exchange area 13 formed in the heat exchange silencer 11 and used for heat exchange of the gas silencing and heat exchange assembly 26, and a heat exchange circulation pipe arranged on the side of the heat exchange silencer 11 and in communication with the heat exchange area 13, a second heat exchanger 14 connected to an outer end of the heat exchange circulation pipe and used for storing and recycling heat conducted from the heat exchange area 13.

[0039] In the embodiment, with reference to Figures 6-8 The gas heat exchange assembly 8 comprises two sealing plates 81 and a plurality of hollow condensing pipes 82 connected to the two sealing plates 81, the two sealing plates 81 being sealingly installed in the central heat exchanger 5, the heat exchange and cooling area 9 being formed by sealing between the two sealing plates 81, two gas flow areas 15 being formed in the central heat exchanger 5 by the sealing spacing of the sealing plates 81 and being distributed at two ends of the heat exchange and cooling area 9, the two ends of the condensing pipes 82 being connected to the two sealing plates 81 respectively, and the end portions of the condensing pipes 82 being in communication with the gas flow areas 15 through the sealing plates 81.

[0040] Specifically, the central heat exchanger 5 is divided into the heat exchange and cooling area 9 and the two gas flow areas 15 by the two sealing plates 81, and the two gas flow areas 15 are communicated by the condensing pipes 82, so that the gas flow and cooling are effectively divided, the heat exchange efficiency is improved, the high-temperature gas can be fully contacted with the condensing pipes 82 during the flow process, heat exchange is performed, and thus the temperature of the high-temperature gas can be effectively reduced for the first pump body 2, and the use of the first pump body 2 is improved.

[0041] In the embodiment, with reference to Figures 6-8The first pump body 2 and the second pump body 3 are communicated with a gas flow area 15 through a first connecting pipe 6 and a second connecting pipe 7 respectively, so that the gas driven by the first pump body 2 enters the central heat exchanger 5 through the first connecting pipe 6, and then passes through the hollow condensing pipe 82 and the other gas flow area 15 of the central heat exchanger 5, and is guided into the second pump body 3 through the second connecting pipe 7 to form a double-stage vacuum. The high-temperature gas generated by the first pump body 2 is cooled by the central heat exchanger 5, and then enters the second pump body 3 through the second connecting pipe 7 to perform a subsequent compression action, thereby further improving the efficiency and stability of the vacuum pump.

[0042] In the embodiment, with reference to Figure 4 and Figure 5 , the cooling circulation pipe includes a cooling liquid inlet pipe 16 and a cooling liquid return pipe 17. One end of the cooling liquid inlet pipe 16 extends to the primary heat exchanger 10 and is communicated with the primary heat exchanger 10. The other end of the cooling liquid inlet pipe 16 and the cooling liquid return pipe 17 extends to the central heat exchanger 5 and is communicated with the heat exchange cooling area 9. The cooling liquid inlet pipe 16 is connected with the primary heat exchanger 10 through a first water pump 36.

[0043] Specifically, the cooling liquid inlet pipe 16 and the cooling liquid return pipe 17 communicate the primary heat exchanger 10 and the central heat exchanger 5, so that the cooling medium of the primary heat exchanger 10 can continuously circulate into the heat exchange cooling area 9 of the central heat exchanger 5 to continuously remove the heat generated in the gas heat exchange process, ensure the persistence and stability of the cooling effect, and further improve the heat exchange effect of the high-temperature gas of the first pump body 2, so that the cooling and temperature reduction process can be performed.

[0044] In the embodiment, with reference to Figure 4 and Figure 5 , the first pump body 2 and the second pump body 3 are respectively provided with a motor box 18 and a gear box 19. The cooling liquid inlet pipe 16 is connected with a motor liquid inlet pipe 20 and a gear liquid inlet pipe 21 for heat exchange and temperature reduction of the motor box 18 and the gear box 19 through a connecting valve. The cooling liquid return pipe 17 is connected with a motor liquid return pipe 22 and a gear liquid return pipe 23 for liquid circulation communication with the motor box 18 and the gear box 19 through a mounting valve.

[0045] Specifically, the motor liquid inlet pipe 20 and the gear liquid inlet pipe 21 can guide the cooling medium of the primary heat exchanger 10 into the motor box 18 and the gear box 19 of the pump body, so that the components in the motor box 18 and the gear box 19 can be heat exchanged and cooled, further reducing the friction or jamming phenomenon of the rotor inside the pump body, and enhancing the stability and reliability of the operation and use of the first pump body 2 and the second pump body 3.

[0046] In the embodiment, with reference to Figure 4 , Figure 5 and Figure 9The heat exchange muffler 11 is provided with a sound-eliminating air inlet 24 communicated with the gas sound-eliminating heat exchange assembly 26, and the outlet of the second pump body 3 is communicated with the sound-eliminating air inlet 24 through an exhaust pipeline 25. The gas sound-eliminating heat exchange assembly 26 comprises two partitions 261 and a plurality of hollow condensation sound-eliminating pipes 262. The two partitions 261 are sealingly installed in the heat exchange muffler 11, so that a heat exchange area 13 is formed between the two partitions 261. The heat exchange muffler 11 is sealingly spaced by the two partitions 261 to form two gas circulation areas 27 distributed at two ends of the heat exchange area 13. The two ends of the condensation sound-eliminating pipe 262 are connected with the two partitions 261 respectively, and the end of the condensation sound-eliminating pipe 262 is communicated with the gas circulation area 27 through the partition 261.

[0047] Specifically, the generated compressed air is sound-eliminated by the heat exchange muffler 11. The structure of the condensation sound-eliminating pipe 262 absorbs and blocks the sound, effectively reduces the noise generated by the gas flow, and improves the working environment. The two partitions 261 are installed in the heat exchange muffler 11 to form the heat exchange area 13 and the two gas circulation areas 27. The two gas circulation areas 27 are communicated through the condensation heat exchange pipe, so as to ensure the orderly flow and sufficient heat exchange of the gas in the heat exchange muffler 11, and improve the heat exchange efficiency and sound-eliminating effect.

[0048] In this embodiment, the heat exchange muffler 11 is provided with the sound-eliminating air inlet 24 and the sound-eliminating air outlet 12. Figure 9 The upper partition 261 is provided with a sealing baffle 28 connected with the top of the upper partition 261. The upper gas circulation area 27 is spaced to form an air inlet circulation area 29 and an air outlet circulation area 30. The sound-eliminating air inlet 24 is communicated with the air inlet circulation area 29, and the sound-eliminating air outlet 12 is communicated with the air outlet circulation area 30. Thus, the high-temperature gas generated by the second pump body 3 is subjected to secondary heat exchange, and the heat conduction effect of the condensation heat exchange pipe is improved.

[0049] Optionally, the condensation heat exchange pipe is provided with one or more support plates connected with the middle portion of the condensation heat exchange pipe. The support plate is provided with a through hole for communication. The support plate is installed in the heat exchange area 13, and the heat exchange area 13 is communicated through the through hole.

[0050] Optionally, in one embodiment, the sound-eliminating air inlet 24 and the sound-eliminating air outlet 12 are arranged at two ends of the heat exchange muffler 11 respectively, and are communicated with one gas circulation area 27 respectively. Thus, the interval of the baffle 28 can be reduced.

[0051] The heat exchange circulation pipe comprises a heat exchange liquid inlet pipe 31 and a heat exchange liquid return pipe 32, one end of the heat exchange liquid inlet pipe 31 and the heat exchange liquid return pipe 32 extends to the heat exchange muffler 11 and communicates with the heat exchange zone 13, and the other end of the heat exchange liquid inlet pipe 31 and the heat exchange liquid return pipe 32 extends to the secondary heat exchanger 14 and communicates with the secondary heat exchanger 14, and the heat exchange liquid inlet pipe 31 is connected with the secondary heat exchanger 14 through the second water pump 33.

[0052] Optionally, the secondary heat exchanger 14 is provided with a water return port 34 and a hot water outlet 35.

[0053] Specifically, the circulation flow of the heat exchange medium between the secondary heat exchanger 14 and the heat exchange muffler 11 is driven by the second water pump 33, so as to ensure the flow rate of the heat exchange medium and the heat exchange effect, and the secondary heat exchanger 14 can store and keep the heat absorbed in the heat exchange process, so as to facilitate the subsequent use of the heat medium and improve the energy utilization rate.

[0054] Specifically, in the embodiment, the primary heat exchanger 10 and the secondary heat exchanger 14 are both composed of a heat energy storage tank, so as to store and keep the heat absorbed in the heat exchange process, facilitate the subsequent use of the heat medium, and improve the energy utilization rate.

[0055] The vacuum pump self-heating heat exchange control method comprises the following steps:

[0056] Step one: using a vacuum pump with a self-heating heat exchange function device to perform heat exchange;

[0057] Step two: driving the operation of vacuumizing of the first pump body 2 and the second pump body 3 by the controller 4, and generating high-temperature gas under the driving compression of the first pump body 2 and the second pump body 3, so that the high-temperature gas passes through the gas flow area 15 at one end of the central heat exchanger 5, enters the gas flow area 15 at the other end through the condenser pipe 82, and performs heat exchange and cooling;

[0058] Step three: driving the first water pump 36 by the controller 4, so that the cooling medium in the primary heat exchanger 10 enters the heat exchange and cooling area 9 through the cooling circulation pipe to perform circulation heat exchange and cooling on the outer surface of the condenser pipe 82, so that the primary heat exchange treatment can be performed;

[0059] Step four: the cooling medium is transported to the first pump body 2 and the second pump body 3 through the motor liquid inlet pipe 20 and the gear liquid inlet pipe 21 on the cooling circulation pipe to perform heat exchange and cooling, and the cooling medium is circulated and discharged through the connected motor liquid return pipe 22 and the gear liquid return pipe 23;

[0060] Step five: the second pump body 3 is driven to run, and the high-temperature gas generated by the second pump body 3 enters the heat exchange silencer 11 through the communication of the gas outlet end of the second pump body 3 and the heat exchange silencer 11, and the high-temperature gas passes through the hollow condensation heat exchange pipe to conduct heat, and the heat exchange medium in the secondary heat exchanger 14 enters the heat exchange area 13 through the heat exchange circulation pipe to exchange heat with the heat on the condensation heat exchange pipe, so that the heat generated by the high-temperature gas is recovered to the secondary heat exchanger 14, thereby the secondary heat exchange treatment can be carried out.

[0061] The second pump body 3 transmits the high-temperature gas to the heat exchange silencer 11 through the exhaust pipe 25 and the sound-attenuating gas inlet 24, and the high-temperature gas passes through the hollow condensation heat exchange pipe from the sound-attenuating gas outlet 12 by the partition 261 arranged in the heat exchange silencer 11. The inner wall of the condensation pipe 82 and the condensation heat exchange pipe is provided with a plurality of fins. The fins further improve the heat conduction effect of the flowing high-temperature gas, thereby improving the heat exchange effect of the high-temperature gas.

[0062] The specific use principle in the embodiment is as follows:

[0063] The first pump body 2 is driven by the controller 4 to run, and the high-temperature gas generated by the first pump body 2 enters the gas flow area 15 at one end of the central heat exchanger 5 through the first connecting pipe 6, and enters the gas flow area 15 at the other end of the central heat exchanger 5 through the hollow condensation pipe 82, and the cooling medium such as water is guided into the heat exchange cooling area 9 in the central heat exchanger 5 by the first water pump 36 to absorb the heat of the condensation pipe 82, and is guided out to flow back to the heat energy storage tank through the cooling return pipe 17, thereby the condensation pipe 82 can be heat-exchanged and cooled, and the stability and efficiency of the first pump body 2 are further improved;

[0064] The high-temperature gas generated by the first pump body 2 is guided into the second pump body 3 through the central heat exchanger 5 after heat exchange and cooling, and the high-temperature gas generated by the second pump body 3 is guided into the heat exchange silencer 11 through the exhaust pipe 25 under the driving of the second pump body 3, and the generated compressed air is processed by the heat exchange silencer 11 to effectively reduce the noise generated by the gas flow, improve the working environment, and the two partition plates 261 are installed in the heat exchange silencer 11 to form the heat exchange area 13 and the two gas circulation areas 27, the condensation heat exchange pipe communicates the two gas circulation areas 27, ensures the orderly flow and sufficient heat exchange of the gas in the heat exchange silencer 11, and improves the heat exchange efficiency and the sound-attenuating effect;

[0065] The heat exchange medium in the secondary heat exchanger 14 is controlled by the second water pump 33 to flow into the heat exchange area 13 to exchange heat with the heat on the condensing heat exchange pipe, and then flows back to the secondary heat exchanger 14 through the heat exchange return pipe 32 to store heat, and then flows out of the secondary heat exchanger 14 through the water return port 34 and the hot water outlet 35 to provide heat source for other systems or devices, so as to realize energy recycling and energy saving effect, so as to realize efficient, stable and environmental protection heat exchange and heat recovery, improve the energy utilization efficiency of the system, and reduce environmental pollution and energy waste.

[0066] Embodiment two

[0067] In this embodiment, refer to Figure 10 The difference between this embodiment two and the embodiment one is only that the primary heat exchanger 10 is composed of a cooling tower, so that the heat exchange and cooling of the first pump body 2 and the second pump body 3 can be enhanced, so that efficient cooling treatment can be carried out, and the stable use of the vacuum pump is facilitated.

[0068] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above in the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application, and the equivalent embodiments with equivalent changes are equivalent. Any simple modification, equivalent change and modification of the above embodiments within the scope of the technical solution of the present application are within the scope of the present application.

Claims

1. A vacuum pump with self-heating heat exchange function device, comprising a cabinet, a first pump body and a second pump body arranged in the cabinet, and a controller arranged on the side of the cabinet, and an air inlet end formed on the first pump body, characterized in that: The cabinet is internally provided with a central heat exchanger, the first pump body and the second pump body are installed on the central heat exchanger, and the first pump body and the second pump body are communicated with the central heat exchanger through the first connecting pipe and the second connecting pipe respectively, the inside of the central heat exchanger is provided with a gas heat exchange assembly for communicating the first connecting pipe and the second connecting pipe, and the inside of the central heat exchanger forms a heat exchange cooling area for heat exchange cooling of the gas heat exchange assembly, the side of the central heat exchanger is provided with a cooling circulation pipe communicated with the heat exchange cooling area, one end of the cooling circulation pipe extends outward and is connected with a first-stage heat exchanger, the second pump body is connected with a heat exchange silencer through a gas outlet, the inside of the heat exchange silencer forms a heat exchange area for heat exchange of the gas heat exchange assembly, the side of the heat exchange silencer is provided with a heat exchange circulation pipe communicated with the heat exchange area, and one end of the heat exchange circulation pipe extends outward and is connected with a second-stage heat exchanger.

2. The vacuum pump with self-heating heat exchange function device according to claim 1, characterized in that: The gas heat exchange assembly comprises two sealing plates and a plurality of hollow condensing pipes connected to the two sealing plates, the two sealing plates are sealingly installed in the inside of the central heat exchanger, the heat exchange cooling area is sealingly formed between the two sealing plates, and the inside of the central heat exchanger is sealingly spaced by the sealing plates to form two gas flow areas distributed at two ends of the heat exchange cooling area, the two ends of the condensing pipe are connected with the two sealing plates respectively, and the end portion of the condensing pipe communicates with the gas flow areas through the sealing plates.

3. The vacuum pump with self-heating heat exchange function device according to claim 2, characterized in that: The first pump body and the second pump body are communicated with one gas flow area through the first connecting pipe and the second connecting pipe respectively, so that the gas generated by the first pump body drives the gas to enter one gas flow area in the central heat exchanger through the first connecting pipe, and the gas passes through the hollow condensing pipe and the other gas flow area of the central heat exchanger, and is guided into the second pump body through the second connecting pipe to form a double-stage vacuum.

4. The vacuum pump with self-heating heat exchange function device according to claim 2, characterized in that: The cooling circulation pipe comprises a cooling liquid inlet pipe and a cooling liquid return pipe, one end of the cooling liquid inlet pipe extends to the first-stage heat exchanger and communicates with the first-stage heat exchanger, the other end of the cooling liquid inlet pipe and the cooling liquid return pipe extends to the central heat exchanger and communicates with the heat exchange cooling area, and the cooling liquid inlet pipe is connected with the first-stage heat exchanger through the first water pump.

5. The vacuum pump with self-heating heat exchange function device according to claim 4, characterized in that: The first pump body and the second pump body are provided with motor boxes and gear boxes respectively, the cooling liquid inlet pipe is connected with a motor liquid inlet pipe and a gear liquid inlet pipe for heat exchange cooling of the motor boxes and the gear boxes through a connecting valve, and the cooling liquid return pipe is connected with a motor liquid return pipe and a gear liquid return pipe for liquid circulation communication with the motor boxes and the gear boxes through an installation valve.

6. The vacuum pump with self-heating heat exchange function device according to claim 1, characterized in that: The heat exchange muffler is formed with a sound-eliminating air inlet communicated with the gas sound-eliminating heat exchange assembly, the air outlet end of the second pump body is communicated with the sound-eliminating air inlet through an exhaust pipeline, the gas sound-eliminating heat exchange assembly comprises two partitions and a plurality of hollow condensation sound-eliminating pipes, the two partitions are sealingly installed in the interior of the heat exchange muffler, a heat exchange zone is sealingly formed between the two partitions, and the heat exchange muffler is formed with two gas circulation zones distributed at two ends of the heat exchange zone through the sealing spacing of the two partitions, the two ends of the condensation sound-eliminating pipes are connected with the two partitions respectively, and the end portions of the condensation sound-eliminating pipes are communicated with the gas circulation zones through the partitions.

7. The vacuum pump with self-heating heat exchange function device according to any one of claims 1-6, characterized in that: The heat exchange circulation pipe comprises a heat exchange liquid inlet pipe and a heat exchange liquid return pipe, one end of the heat exchange liquid inlet pipe and the heat exchange liquid return pipe extends to the heat exchange muffler and is communicated with the heat exchange zone, and the other end of the heat exchange liquid inlet pipe and the heat exchange liquid return pipe extends to the secondary heat exchanger and is communicated with the secondary heat exchanger, and the heat exchange liquid inlet pipe is connected with the secondary heat exchanger through the second water pump.

8. The vacuum pump with self-heating heat exchange function device according to any one of claims 1-6, characterized in that: The primary heat exchanger is composed of a cooling tower or a heat energy storage tank.

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