Electric pressurization recovery system

Abstract

The utility model relates to an electric pressurization recovery system and relates to the technical field of compressors, the recovery system comprises an air inlet pipe connected with a first-stage leakage air pipeline and a pressurization mechanism used for pressurizing leakage air to a specified air pressure value, and the leakage air pressurized by the pressurization mechanism is discharged into an inlet of a compressor through an exhaust pipe; the pressurizing device is used for pressurizing leaked gas in the gas inlet pipe and exhausting the pressurized gas into the exhaust pipe; and the adjusting assembly is arranged on the air inlet pipe and electrically connected with the electric booster pump, and the adjusting assembly adjusts the opening degree of the electric booster pump according to the air pressure value in the air inlet pipe and increases the air pressure value of the leaked air to a specified value. The leakage gas in the first-stage leakage gas pipeline enters the gas inlet pipe, the pressure value in the gas inlet pipe is detected through the adjusting assembly, and the opening degree of the electric booster pump is controlled, so that the pressure value of the leakage gas is increased to a specified range, and the stability of the pressure value of the leakage gas discharged into the compressor again is improved.

Description

Technical Field

[0001] This application relates to the technical field of compressors, and more particularly to an electric supercharging recovery system. Background Art

[0002] With the rapid development of China's economy, the demand in the refrigeration industry is also increasing continuously. In the refrigeration industry, the refrigerant compressor is the core component of refrigeration equipment. During the use of the refrigerant compressor, it is easy to cause leakage of the refrigerant medium. For some refrigerants with very expensive raw materials, even a small amount of refrigerant medium leaking into the air will cause a considerable degree of waste of resources.

[0003] Currently, in order to reduce the waste caused by the leakage of the refrigerant medium in the refrigerant compressor, the leaked gas of the compressor airtight system is usually collected, pressurized by a booster pump and then re-introduced into the inlet of the compressor to achieve the recycling of the refrigerant medium.

[0004] However, since the pressure value of the leaked gas discharged from the primary leaked gas is unstable, the air pressure value of the leaked gas usually fluctuates within a large range, and the conventional booster pump can only increase the gas pressure by a certain air pressure value, resulting in a large fluctuation in the air pressure value re-introduced into the compressor, and even unable to reach the minimum required air pressure value, causing the repaired leaked gas to not be able to be discharged back into the compressor. Utility Model Content

[0005] In order to improve the stability of the air pressure value of the leaked gas re-introduced into the compressor, this application provides an electric supercharging recovery system.

[0006] The electric supercharging recovery system provided by this application adopts the following technical solutions:

[0007] The electric supercharging recovery system includes an intake pipe connected to the primary leaked gas pipeline. A supercharging mechanism is provided on the intake pipe for supercharging the leaked gas to a specified air pressure value. The leaked gas supercharged by the supercharging mechanism is discharged into the compressor inlet through a discharge pipe. The supercharging mechanism includes:

[0008] An electric booster pump, which is arranged on the intake pipe and is used to supercharge the leaked gas in the intake pipe and then discharge it into the discharge pipe;

[0009] An adjustment component, which is arranged on the intake pipe and is electrically connected to the electric booster pump. The adjustment component adjusts the opening degree of the electric booster pump according to the air pressure value in the intake pipe and increases the air pressure value of the leaked gas to a specified size.

[0010] By adopting the above technical solution, the leaked gas in the primary leakage gas pipeline enters the intake pipe. The regulating component detects the pressure value in the intake pipe and controls the opening degree of the electric booster pump, so as to boost the pressure value of the leaked gas to the specified range, improving the stability of the air pressure value of the leaked gas re-discharged into the compressor.

[0011] Furthermore, the regulating component includes:

[0012] A pressure transmitter, which is arranged on the intake pipe and used to detect the pressure value at the inlet of the electric booster pump and convert it into a signal value;

[0013] A frequency converter, which is arranged on the electric booster pump and electrically connected to the pressure transmitter. The frequency converter adjusts the opening degree of the electric booster pump according to the signal value of the pressure transmitter.

[0014] By adopting the above technical solution, the pressure transmitter converts the detected pressure value into a signal value, and then the signal value is transmitted to the frequency converter. The frequency converter adjusts the opening degree of the electric booster pump according to the signal value, so as to boost the pressure value in the intake pipe to the specified magnitude.

[0015] Furthermore, a circulation mechanism is arranged on the intake pipe. The circulation mechanism cooperates with the boosting mechanism and boosts the leaked gas multiple times. The circulation mechanism includes:

[0016] A circulation pipe, one end of which is arranged on the intake pipe and the other end is arranged on the discharge pipe. The circulation pipe is used to re-discharge the leaked gas in the discharge pipe into the intake pipe and perform secondary boosting through the boosting mechanism;

[0017] A circulation control component, which is arranged on the discharge pipe and detects the air pressure value of the leaked gas in the discharge pipe and discharges the leaked gas whose value has not reached the set value into the circulation pipe.

[0018] By adopting the above technical solution, since the boosting range of the electric booster pump is limited, when the single boosting cannot reach the set value, the circulation control component discharges the leaked gas in the discharge pipe into the circulation pipe. The circulation pipe discharges the leaked gas into the intake pipe for secondary boosting, so as to realize multiple boosting of the leaked gas.

[0019] Furthermore, the circulation control component includes:

[0020] A second pressure gauge, which is arranged on the discharge pipe and used to detect the air pressure value of the leaked gas in the discharge pipe;

[0021] A first control valve, which is arranged on the discharge pipe and used to control the connection or disconnection between the discharge pipe and the compressor inlet;

[0022] A second control valve, which is arranged on the circulation pipe and used to control the opening or closing of the circulation pipe;

[0023] A controller, which is arranged on the second pressure gauge and controls the start and stop of the controller according to the air pressure value of the second pressure gauge. The controller is used to control the opening or closing of the first control valve and the second control valve, and the states of the first control valve and the second control valve are opposite.

[0024] By adopting the above technical solution, when the pressure value of the leaked gas in the discharge pipe is less than the set value of the second pressure gauge, the controller closes the first control valve and simultaneously opens the second control valve, so as to discharge the leaked gas in the discharge pipe into the intake pipe machinery through the circulation pipe for re-boosting.

[0025] Furthermore, a pressure alarm is arranged on the pressure transmitter. The pressure alarm is used to judge the pressure value detected by the pressure transmitter and issue an alarm when the pressure value exceeds the set range.

[0026] By adopting the above technical solution, when the signal value of the pressure transmitter exceeds the set safety range value of the pressure alarm, the pressure alarm issues an alarm, so as to facilitate the staff to carry out timely maintenance and repair.

[0027] Furthermore, a back pressure valve is arranged on one end of the intake pipe close to the first-stage leakage gas pipeline. The back pressure valve is used to preliminarily stabilize the pressure of the leaked gas discharged from the first-stage leakage gas pipeline.

[0028] By adopting the above technical solution, the back pressure valve preliminarily stabilizes the leaked gas discharged from the first-stage leakage gas pipeline, which is convenient for the electric booster pump to carry out boosting treatment.

[0029] Furthermore, a first pressure gauge is arranged on the intake pipe between the back pressure valve and the first-stage leakage gas pipeline. The first pressure gauge is used to detect the air pressure value between the back pressure valve and the first-stage leakage gas pipeline.

[0030] By adopting the above technical solution, the first pressure gauge is convenient for detecting the air pressure value of the leaked gas discharged from the first-stage leakage gas pipeline, and is also convenient for judging the working state of the back pressure valve.

[0031] Furthermore, a buffer assembly is arranged on the intake pipe. The buffer assembly includes:

[0032] A buffer tank, which is arranged on the intake pipe. The leaked gas discharged from the intake pipe and the circulation pipe is discharged into the buffer tank for temporary storage and buffering. The discharge end of the buffer tank is communicated with the boosting mechanism. The leaked gas discharged from the buffer tank is detected by the pressure transmitter and then discharged into the electric booster pump for boosting;

[0033] A bypass pipe, both ends of the bypass pipe are respectively communicated with the inlet end and the discharge end of the buffer tank, and the bypass pipe is used to enable the leakage gas in the intake pipe and the circulation pipe to directly enter the pressurizing mechanism without passing through the buffer tank;

[0034] A buffer valve, the buffer valve is arranged on the bypass pipe and is used to control the flow rate in the bypass pipe.

[0035] By adopting the above technical solution, the buffer valve controls the opening and closing of the bypass pipe and thus controls the usage state of the buffer tank. When the buffer tank closes the bypass pipe, the leakage gas in the intake pipe and the circulation pipe enters the buffer tank, and the leakage gas is temporarily stored and buffered by the buffer tank and then discharged into the pressurizing mechanism. After being pressurized by the pressurizing mechanism, it enters the discharge pipe, so as to realize the buffering before pressurizing the leakage gas and improve the pressurizing effect on the leakage gas.

[0036] Furthermore, a radiator is arranged on the circulation pipe, and the radiator is used to dissipate heat from the leakage gas passing through the circulation pipe.

[0037] By adopting the above technical solution, since the leakage gas is pressurized multiple times, the temperature of the leakage gas rises. The radiator dissipates heat from the leakage gas in the circulation pipe, thereby reducing the damage probability of the electric supercharger due to the too high temperature of the leakage gas.

[0038] In summary, the present application includes at least one of the following beneficial technical effects:

[0039] 1. The leakage gas in the primary leakage gas pipeline enters the intake pipe after the pressure is stabilized by the back pressure valve. The pressure value in the intake pipe is detected by the pressure transmitter and the opening degree of the electric supercharger is controlled by the frequency converter, so as to pressurize the leakage gas pressure value to the specified range. At the same time, when the electric supercharger fails to reach the set range value of the leakage gas in a single pressurization, the pressurized leakage gas is discharged back into the intake pipe through the circulation pipe and is pressurized again by the electric supercharger, so as to pressurize the leakage gas pressure value to the specified range, improving the stability of the leakage gas pressure value re-entering the compressor.

[0040] 2. When the buffer valve is closed, the leakage gas in the intake pipe and the circulation pipe enters the buffer tank. The leakage gas is temporarily stored and buffered by the buffer tank and then discharged into the pressure transmitter. After being detected by the pressure transmitter, it is discharged into the electric supercharger. After being pressurized by the electric supercharger, it enters the discharge pipe, so as to realize the buffering before pressurizing the leakage gas and improve the pressurizing effect on the leakage gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic structural diagram of the recovery system of Embodiment 1 of the present application;

[0042] Figure 2 is a schematic structural diagram of the recovery system of Embodiment 2 of the present application.

[0043] Reference numerals: 1, primary leakage gas pipeline; 2, intake pipe; 21, first pressure gauge; 22, back pressure valve; 3, discharge pipe; 4, boosting mechanism; 41, electric boosting pump; 42, regulating assembly; 421, pressure transmitter; 422, frequency converter; 43, pressure alarm; 5, circulation mechanism; 51, circulation pipe; 52, circulation control assembly; 521, second pressure gauge; 522, first control valve; 523, second control valve; 6, buffer assembly; 61, buffer tank; 62, bypass pipe; 63, buffer valve; 7, compressor. Detailed implementation manners

[0044] The following further describes the present application in detail in conjunction with the attached Figure 1-2 drawings.

[0045] The embodiment of the present application discloses an electric boosting recovery system.

[0046] Embodiment 1

[0047] Referring to Figure 1 , the electric boosting recovery system includes an intake pipe 2 connected to the primary leakage gas pipeline 1, and a boosting mechanism 4 for boosting the leakage gas to a specified pressure value is provided on the intake pipe 2. The leakage gas boosted by the boosting mechanism 4 is discharged into the inlet of the compressor 7 through the discharge pipe 3.

[0048] Referring to Figure 1 , the primary leakage gas pipeline 1 discharges the leaked leakage gas into the intake pipe 2. A back pressure valve 22 is fixedly installed at one end of the intake pipe 2 close to the primary leakage gas pipeline 1. The back pressure valve 22 is used for preliminarily stabilizing the pressure of the leakage gas discharged from the primary leakage gas pipeline 1. The set value of the back pressure valve 22 in this embodiment is 0.05 MPaG, and when the pressure value in the intake pipe 2 exceeds the set value of the back pressure valve 22, it is discharged into the rear end.

[0049] Referring to Figure 1 , a first pressure gauge 21 is also fixedly installed on the intake pipe 2. The first pressure gauge 21 is located between the back pressure valve 22 and the primary leakage gas pipeline 1. The first pressure gauge 21 is used for detecting the air pressure value between the back pressure valve 22 and the primary leakage gas pipeline 1, so as to facilitate detecting the air pressure value of the leakage gas discharged from the primary leakage gas pipeline 1, and at the same time, it is also convenient to judge the working state of the back pressure valve 22.

[0050] Referring to Figure 1, the supercharging mechanism 4 includes an electric supercharger pump 41 and an adjustment component 42. The electric supercharger pump 41 is fixedly installed on the intake pipe 2. The intake pipe 2 leads the leaked gas to the inlet of the electric supercharger pump 41, and after being supercharged by the electric supercharger pump 41, it is discharged into the discharge pipe 3. The opening degree of the electric supercharger pump 41 can be adjusted, thereby changing the supercharging magnitude of the leaked gas by the electric supercharger pump 41; the adjustment component 42 is arranged on the intake pipe 2, the adjustment component 42 is electrically connected to the electric supercharger pump 41, and the adjustment component 42 adjusts the opening degree of the electric supercharger pump 41 according to the air pressure value in the intake pipe 2, so as to increase the air pressure value of the leaked gas to a specified magnitude.

[0051] Refer to Figure 1 , the adjustment component 42 includes a pressure transmitter 421 and a frequency converter 422. The pressure transmitter 421 is fixedly installed on the intake pipe 2. The pressure transmitter 421 is used to detect the pressure value at the inlet of the pressure transmitter 421 and convert the detected pressure value into a signal value; the frequency converter 422 is fixedly installed on the electric supercharger pump 41. The frequency converter 422 is electrically connected to the pressure transmitter 421. The frequency converter 422 controls the opening degree of the electric supercharger pump 41 according to the signal value of the pressure transmitter 421, so as to supercharge the leaked gas in the intake pipe 2 to within a specified pressure value range.

[0052] Refer to Figure 1 , a pressure alarm 43 is also fixedly installed on the pressure transmitter 421. The pressure alarm 43 is electrically connected to the pressure transmitter 421. The pressure alarm 43 is set with a safety range value. When the signal value of the pressure transmitter 421 exceeds the set safety range value of the pressure alarm 43, the pressure alarm 43 gives an alarm; the set value of the pressure alarm 43 in this embodiment is 0.05 MPaG. When the signal value uploaded by the pressure transmitter 421 is lower than 0.05 MPaG, the pressure alarm 43 gives an alarm, so as to facilitate the staff to carry out timely maintenance and repair.

[0053] Refer to Figure 1 , a circulation mechanism 5 is arranged on the intake pipe 2. The circulation mechanism 5 cooperates with the supercharging mechanism 4 and supercharges the leaked gas multiple times. Since the supercharging range of the electric supercharger pump 41 is limited, when the air pressure value of the leaked gas stabilized by the back pressure valve 22 is too different from the air pressure value required at the inlet of the compressor 7, the single supercharging of the electric supercharger pump 41 cannot supercharge the pressure value of the leaked gas to the specified value. Therefore, it is necessary to cooperate the circulation mechanism 5 and the supercharging mechanism 4 to supercharge the leaked gas multiple times.

[0054] Refer to Figure 1, the recycling mechanism 5 includes a recycling pipe 51 and a recycling control component 52. One end of the recycling pipe 51 is fixedly installed on the intake pipe 2 and is in internal communication with the intake pipe 2. The other end of the recycling pipe 51 is fixedly installed on the discharge pipe 3 and is in internal communication with the discharge pipe 3. The recycling pipe 51 is used to re-discharge the leaked gas in the discharge pipe 3 into the intake pipe 2, so as to enable the leaked gas to be pressurized again by the pressurizing mechanism 4; the recycling control component 52 is arranged on the discharge pipe 3. The recycling control component 52 detects the air pressure value of the leaked gas in the discharge pipe 3 and is used to discharge the leaked gas that has not reached the set value into the recycling pipe 51, so as to pressurize the leaked gas again.

[0055] Refer to Figure 1 , the recycling control component 52 includes a second pressure gauge 521, a first control valve 522, a second control valve 523 and a controller. The second pressure gauge 521 is fixedly installed on the discharge pipe 3 and is used to detect the air pressure value of the leaked gas in the discharge pipe 3; the first control valve 522 is fixedly installed on the discharge pipe 3 and is used to control the connection or disconnection between the discharge pipe 3 and the inlet of the compressor 7; the second control valve 523 is fixedly installed on the recycling pipe 51 and is used to control the opening or closing of the recycling pipe 51; the controller is fixedly installed on the second pressure gauge 521 and controls the start and stop of the controller according to the air pressure value of the second pressure gauge 521. The controller is used to control the opening or closing of the first control valve 522 and the second control valve 523, where the states of the first control valve 522 and the second control valve 523 are opposite; when in normal use, the first control valve 522 is open and the second control valve 523 is closed.

[0056] Refer to Figure 1 , specifically, when the electric booster pump 41 pressurizes the leaked gas and discharges it into the discharge pipe 3, the second pressure gauge 521 detects the air pressure value in the discharge pipe 3. When the air pressure value detected by the second pressure gauge 521 is less than the set value, the controller starts, so as to close the first control valve 522 and at the same time open the second control valve 523, so that the leaked gas pressurized by the booster pump returns to the intake pipe 2 through the recycling pipe 51 and is pressurized again by the electric booster pump 41 until the air pressure value detected by the second pressure gauge 521 is greater than the set value, then the controller is closed, so that the first control valve 522 is opened and the second control valve 523 is closed at the same time, so that the pressurized leaked gas is discharged into the inlet of the compressor 7 for recycling again.

[0057] Refer to Figure 1, since the electric booster pump 41 boosts the leakage gas, the pressure value of the leakage gas increases and the temperature of the leakage gas also rises. When the leakage gas needs to be boosted multiple times, it is easy to cause the temperature of the leakage gas to be too high. A radiator is fixedly installed on the circulation pipe 51, and the radiator cools the leakage gas passing through the circulation pipe 51, thereby reducing the temperature of the leakage gas after multiple boosts, and further reducing the damage probability of the leakage gas to the electric booster pump 41.

[0058] The working principle of Embodiment 1 of the present application is as follows:

[0059] The leakage gas in the primary leakage gas pipeline 1 enters the intake pipe 2 after the pressure is stabilized by the back pressure valve 22. The pressure value in the intake pipe 2 is detected by the pressure transmitter 421, and the opening degree of the electric booster pump 41 is controlled by the frequency converter 422, so as to boost the pressure value of the leakage gas to the specified range. At the same time, when the electric booster pump 41 fails to reach the set range value of the leakage gas during a single boost, the boosted leakage gas is discharged back to the intake pipe 2 through the circulation pipe 51 and is boosted again by the electric booster pump 41, so as to boost the pressure value of the leakage gas to the specified range, improving the stability of the air pressure value of the leakage gas re-entering the compressor 7.

[0060] Embodiment 2

[0061] Refer to Figure 2 , the difference between this embodiment and Embodiment 1 is that a buffer assembly 6 is provided on the intake pipe 2. The buffer assembly 6 includes a buffer tank 61, a bypass pipe 62 and a buffer valve 63. The buffer tank 61 is fixedly installed on the workbench, and the buffer tank 61 is used to temporarily store the leakage gas discharged from the intake pipe 2 and the circulation pipe 51, thereby achieving the buffering effect on the leakage gas; the inlet end of the buffer tank 61 is communicated with the intake pipe 2. During use, the leakage gas discharged from the intake pipe 2 and the circulation pipe 51 both enter the buffer tank 61 through the inlet end of the buffer tank 61. The discharge end of the buffer tank 61 is communicated with the intake pipe 2, and the discharge end of the buffer tank 61 is communicated with the boosting mechanism 4. The leakage gas discharged from the buffer tank 61 is detected by the pressure transmitter 421 and then discharged into the electric booster pump 41 for boosting.

[0062] Refer to Figure 2 , both ends of the bypass pipe 62 are respectively communicated with the inlet end and the discharge end of the buffer tank 61. The bypass pipe 62 is used to directly discharge the leakage gas in the intake pipe 2 and the circulation pipe 51 into the pressure transmitter 421 without passing through the buffer tank 61, and then into the electric booster pump 41; the buffer valve 63 is fixedly installed on the bypass pipe 62, and the buffer valve 63 is used to control the flow rate in the bypass pipe 62, thereby controlling the flow rate of the leakage gas entering the buffer tank 61.

[0063] Refer to Figure 2, when the buffer valve 63 is closed, the leaked gas in the intake pipe 2 and the circulation pipe 51 is discharged into the buffer tank 61. After being temporarily stored in the buffer tank 61, it is then discharged into the electric booster pump 41 through the detection of the pressure transmitter 421, and enters the discharge pipe 3 after being boosted by the electric booster pump 41; when the buffer valve 63 is opened, the leaked gas in the intake pipe 2 and the circulation pipe 51 enters the pressure transmitter 421 through the bypass pipe 62, and is discharged into the electric booster pump 41 through the detection of the pressure transmitter 421, and enters the discharge pipe 3 after being boosted by the electric booster pump 41.

[0064] The working principle of Embodiment 2 of this application is as follows:

[0065] When the buffer valve 63 is closed, the leaked gas in the intake pipe 2 and the circulation pipe 51 enters the buffer tank 61. The buffer tank 61 temporarily stores and buffers the leaked gas and then discharges it into the pressure transmitter 421. After being detected by the pressure transmitter 421, it is discharged into the electric booster pump 41 and enters the discharge pipe 3 after being boosted by the electric booster pump 41, so as to buffer the leaked gas before boosting and improve the boosting effect on the leaked gas.

[0066] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. Electric supercharging recovery system, characterized in that: It includes an intake pipe (2) connected to a primary leakage gas pipeline (1). A pressurizing mechanism (4) for pressurizing the leakage gas to a specified pressure value is provided on the intake pipe (2). The leakage gas pressurized by the pressurizing mechanism (4) is discharged into the inlet of a compressor (7) through a discharge pipe (3). The pressurizing mechanism (4) includes: An electric booster pump (41) which is arranged on the intake pipe (2) and is used for pressurizing the leakage gas in the intake pipe (2) and then discharging it into the discharge pipe (3); An adjustment component (42) which is arranged on the intake pipe (2) and is electrically connected to the electric booster pump (41). The adjustment component (42) adjusts the opening degree of the electric booster pump (41) according to the air pressure value in the intake pipe (2) and increases the air pressure value of the leakage gas to a specified size.

2. The electric supercharger recovery system according to claim 1, wherein: The adjustment component (42) includes: A pressure transmitter (421) which is arranged on the intake pipe (2) and is used for detecting the pressure value at the inlet of the electric booster pump (41) and converting it into a signal value; A frequency converter (422) which is arranged on the electric booster pump (41) and is electrically connected to the pressure transmitter (421). The frequency converter (422) adjusts the opening degree of the electric booster pump (41) according to the signal value of the pressure transmitter (421).

3. The electric supercharger recovery system according to claim 2, characterized in that: A circulation mechanism (5) is provided on the intake pipe (2). The circulation mechanism (5) cooperates with the pressurizing mechanism (4) to pressurize the leakage gas multiple times. The circulation mechanism (5) includes: A circulation pipe (51) with one end arranged on the intake pipe (2) and the other end arranged on the discharge pipe (3). The circulation pipe (51) is used for re-discharging the leakage gas in the discharge pipe (3) into the intake pipe (2) and performing secondary pressurization through the pressurizing mechanism (4); A circulation control component (52) which is arranged on the discharge pipe (3). The circulation control component (52) detects the air pressure value of the leakage gas in the discharge pipe (3) and discharges the leakage gas that has not reached the set value into the circulation pipe (51).

4. The electric supercharger recovery system according to claim 3, wherein: The circulation control component (52) includes: A second pressure gauge (521) which is arranged on the discharge pipe (3) and is used for detecting the air pressure value of the leakage gas in the discharge pipe (3); A first control valve (522) which is arranged on the discharge pipe (3) and is used for controlling the connection or closing between the discharge pipe (3) and the inlet of the compressor (7); A second control valve (523) which is arranged on the circulation pipe (51) and is used for controlling the opening or closing of the circulation pipe (51); A controller which is arranged on the second pressure gauge (521) and controls the start and stop of the controller according to the air pressure value of the second pressure gauge (521). The controller is used for controlling the opening or closing of the first control valve (522) and the second control valve (523), and the states of the first control valve (522) and the second control valve (523) are opposite.

5. The electric supercharger recovery system according to claim 2, wherein: A pressure alarm (43) is provided on the pressure transmitter (421). The pressure alarm (43) is used to judge the pressure value detected by the pressure transmitter (421) and issue an alarm when the pressure value exceeds the set range.

6. The electric supercharger recovery system according to claim 1, wherein: A backpressure valve (22) is provided at one end of the intake pipe (2) close to the primary leakage gas pipeline (1). The backpressure valve (22) is used to preliminarily stabilize the pressure of the leakage gas discharged from the primary leakage gas pipeline (1).

7. The electric supercharger recovery system according to claim 6, characterized in that: A first pressure gauge (21) is provided on the intake pipe (2) between the backpressure valve (22) and the primary leakage gas pipeline (1). The first pressure gauge (21) is used to detect the air pressure value between the backpressure valve (22) and the primary leakage gas pipeline (1).

8. The electric supercharger recovery system according to claim 3, wherein: A buffer assembly (6) is provided on the intake pipe (2). The buffer assembly (6) includes: A buffer tank (61) is provided on the intake pipe (2). The leakage gas discharged from the intake pipe (2) and the circulation pipe (51) is discharged into the buffer tank (61) for temporary buffering. The discharge end of the buffer tank (61) is communicated with the pressurizing mechanism (4). The leakage gas discharged from the buffer tank (61) is detected by the pressure transmitter (421) and then discharged into the electric booster pump (41) for pressurization. A bypass pipe (62) has both ends respectively communicated with the inlet end and the discharge end of the buffer tank (61). The bypass pipe (62) is used to enable the leakage gas in the intake pipe (2) and the circulation pipe (51) to directly enter the pressurizing mechanism (4) without passing through the buffer tank (61). A buffer valve (63) is provided on the bypass pipe (62) and is used to control the flow rate in the bypass pipe (62).

9. The electric supercharger recovery system according to claim 3, characterized in that: A radiator is provided on the circulation pipe (51). The radiator is used to cool down the leakage gas passing through the circulation pipe (51).

Images