Drainage device for intermediate cooler of magnetic suspension air compressor

Abstract

The invention belongs to the technical field of drainage devices, and discloses a drainage device for an intercooler of a magnetic suspension air compressor, which comprises an outer shell, a water storage cavity is arranged in the outer shell, a water inlet is arranged on one side of the outer shell, and the water inlet is communicated with the water storage cavity. A water storage cavity is formed in the outer shell, a detection assembly used for detecting the water level in the water storage cavity is arranged in the water storage cavity, a water outlet is formed in one side of the outer shell, a valve assembly used for controlling opening and closing of the water outlet is arranged at the water outlet, the detection assembly and the valve assembly are in linkage control, and after the detection assembly detects that the water level in the water storage cavity reaches the set water level, the valve assembly is opened and closed. The detection assembly sends out a control signal to control the valve body assembly to be opened, and water in the water storage cavity is discharged through the water outlet; when the liquid level of condensate water is detected to reach a set value, automatic drainage can be achieved, only drainage is achieved, exhaust is not needed, waste of compressed air is avoided, and the using effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of drainage devices, and in particular relates to a drainage device for an intercooler of a magnetic levitation air compressor. Background Art

[0002] The magnetic levitation air compressor will generate a lot of heat when working, causing the compressed gas temperature to rise, thereby reducing the compression efficiency; in order to reduce the gas temperature and improve the compression efficiency, the compressed gas of the magnetic levitation air compressor needs to flow through the intercooler for cooling; because the air contains moisture, the gas temperature and pressure increase significantly after being compressed by the magnetic levitation air compressor, and a large amount of condensed water will be produced after the gas is cooled by the intercooler.

[0003] At present, a drainage device needs to be installed on the intercooler of a magnetic levitation air compressor to discharge the condensed water in the intercooler. The patent application number is: CN201921458436.X, which discloses an automatic discharge device for condensed water of an interstage cooler of an air compressor, including an interstage cooler of an air compressor, an air inlet is fixedly provided at the top left side of the interstage cooler of the air compressor, an air outlet is fixedly provided at the top right side of the interstage cooler of the air compressor, the bottom left side of the interstage cooler of the air compressor is fixedly connected to one end of a water inlet pipe, the other end of the water inlet pipe is forked and connected to one end of a water inlet valve and one end of a drain valve, the other end of the drain valve is connected to a drainage pipe, and the other end of the water inlet valve is connected to a water collecting tank, the top right side of the water collecting tank is fixedly connected to one end of a return air pipe, and the other end of the return air pipe is fixedly connected to the outlet.

[0004] The above-mentioned existing intercoolers are equipped with a float trap for drainage; however, in actual use, the float trap is often unable to be completely closed due to unstable working conditions or aging, resulting in the compressed air and condensed water being discharged together, causing waste of compressed air and reducing the pressure of the compressed air; at the same time, blockage of the drainage pipe or filter can easily cause the float valve to be unable to drain water, reducing the use effect. Summary of the invention

[0005] The main technical problem to be solved by the present invention is to provide a drainage device for an intercooler of a magnetic levitation air compressor. When the drainage pipe of the intercooler of the magnetic levitation air compressor is connected to a capacitive sensor automatic drainage valve, it can detect that the liquid level of condensed water reaches a set value and automatically drain the water, thereby only draining water without exhausting air, avoiding waste of compressed air and improving the use effect.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A drainage device for an intercooler of a magnetic levitation air compressor comprises an outer shell, a water storage cavity is arranged in the outer shell, a water inlet is arranged on one side of the outer shell, the water inlet is communicated with the water storage cavity, a detection component for detecting the water level in the water storage cavity is arranged in the water storage cavity, a water outlet is opened on one side of the outer shell, a valve body component for controlling the water outlet switch is arranged at the water outlet, the detection component and the valve body component are controlled in linkage, after the detection component detects that the water level in the water storage cavity reaches the set water level, the detection component sends a control signal for controlling the valve body component to open, and at this time the water in the water storage cavity is discharged through the water outlet.

[0007] The following is a further optimization of the above technical solution by the present invention: The detection component comprises a capacitive sensor arranged on the top surface of the water storage cavity, and the detection end of the capacitive sensor is arranged downward and located at the highest liquid level position in the water storage cavity.

[0008] Further optimization: the valve body assembly includes a mounting block, a connecting cavity is opened below the mounting block, a partition plate is fixedly installed in the connecting cavity, and the upper end of the partition plate and the upper end surface of the connecting cavity are arranged at intervals.

[0009] Further optimization: a water inlet pipe cavity is provided on one side of the partition plate close to the water storage cavity, and one end of the water inlet pipe cavity is connected with the water storage cavity; a water outlet pipe cavity is provided on the other side of the partition plate, and the water inlet pipe cavity and the water outlet pipe cavity are connected with each other through the top of the partition plate; a water outlet channel is provided between one side of the water outlet pipe cavity and the water outlet.

[0010] Further optimization: a sealing cover is provided in the connecting cavity above the partition plate, and the lower end surface of the sealing cover is used to cover the connecting point between the water inlet pipe cavity and the water outlet pipe cavity.

[0011] Further optimization: a compression spring is arranged above the sealing cover, and the compression spring outputs elastic force to push the sealing cover downward, so that the sealing cover is used to seal the connection between the water inlet pipe cavity and the water outlet pipe cavity.

[0012] Further optimization: a groove is provided on the lower end surface of the sealing cover, and a sink is provided on the inner surface of the groove at a position corresponding to the upper ports of the water inlet pipe cavity and the water outlet pipe cavity, and the depth of the sink is greater than the depth of the groove; a water delivery cavity is provided between two adjacent sinks at the middle position of the groove, and the water delivery cavity is located directly above the partition plate.

[0013] Further optimization: the cross-sectional shape of the trough matches the outer surface shapes of the corresponding upper ports of the water inlet and outlet cavities, respectively.

[0014] Further optimization: a sealing plate is fixedly installed above the partition plate, and when the sealing cover covers the water inlet pipe cavity and the water outlet pipe cavity, the sealing plate is used to fill the water delivery cavity to achieve the encapsulation of the water delivery cavity.

[0015] Further optimization: an installation cavity is opened in the installation block, an electromagnetic valve is arranged in the installation cavity, the working end of the electromagnetic valve is arranged vertically downward, and a control rod is fixedly connected to the working end of the electromagnetic valve; a control handle is provided on the side of the sealing cover close to the control rod, and the end of the control handle away from the sealing cover is fixedly connected to the lower end of the control rod.

[0016] The present invention adopts the above-mentioned technical scheme, which has ingenious conception and reasonable structure. It can use a capacitive sensor to detect the water level in the water storage cavity in real time, and the capacitive sensor sends a control signal to control the opening of the valve body assembly to discharge the condensed water in the water storage cavity, and is combined with the main controller to realize regular and fixed water level active drainage, ensuring that the water level is always maintained within the optimal range, reducing the waste of compressed gas, and avoiding long-term accumulation of condensed water in the intercooler.

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a structural schematic diagram of the sealing cover in the embodiment of the present invention; Figure 3 It is a schematic diagram of the structure when the sealing cover is opened in an embodiment of the present invention; Figure 4 Schematic diagram of a control system in an embodiment of the present invention.

[0019] In the figure: 1. water inlet; 2. outer shell; 3. capacitive sensor; 4. solenoid valve; 5. sealing cover; 501. groove; 502. trough; 503. water delivery cavity; 6. water outlet; 7. water storage cavity; 8. mounting block; 9. connecting cavity; 10. partition plate; 101. sealing plate; 11. water inlet pipe cavity; 12. water outlet pipe cavity; 14. water outlet channel; 15. compression spring; 16. mounting cavity; 17. control rod; 19. control handle. DETAILED DESCRIPTION

[0020] like Figure 1-4As shown: a drainage device for an intercooler of a magnetic levitation air compressor, comprising an outer shell 2, a water storage cavity 7 is arranged in the outer shell 2, a detection component for detecting the water level in the water storage cavity 7 is arranged in the water storage cavity 7, a water outlet 6 is opened on one side of the outer shell 2, a valve body component for controlling the switch of the water outlet 6 is arranged at the water outlet 6, the detection component is linked to the valve body component for control, after the detection component detects that the water level in the water storage cavity 7 reaches the set water level, the detection component sends a control signal for controlling the valve body component to open, and at this time the water in the water storage cavity 7 is discharged through the water outlet 6.

[0021] A water inlet 1 is provided on one side of the outer shell 2 . The water inlet 1 is communicated with the water storage cavity 7 , and condensed water in the water inlet 1 enters the water storage cavity 7 .

[0022] With such a design, when in use, the drainage device of the magnetic levitation air compressor intercooler is arranged at the lowest point of the intercooler, and the water inlet 1 is connected to the intercooler, and the condensed water condensed in the intercooler enters the water storage cavity 7 through the water inlet 1.

[0023] The detection component includes a capacitive sensor 3 arranged on the top surface of the water storage cavity 7 , and the detection end of the capacitive sensor 3 is arranged downward and located at the highest liquid level position in the water storage cavity 7 .

[0024] In this design, the condensed water in the intercooler enters the water storage cavity 7 through the water inlet 1. When the water storage cavity 7 is filled with condensed water, the liquid level of the condensed water is higher than the detection end of the capacitive sensor 3. At this time, after the capacitive sensor 3 detects a signal, the drainage device for the intercooler of the magnetic levitation air compressor is immediately activated.

[0025] In this embodiment, the detection component adopts a capacitive sensor 3. The capacitive sensor 3 is suitable for use in a high temperature, high pressure environment and has a strong corrosion resistance.

[0026] The valve body assembly includes a mounting block 8 , a connecting cavity 9 is provided below the mounting block 8 , a partition plate 10 is fixedly installed in the connecting cavity 9 , and the upper end of the partition plate 10 is spaced apart from the upper end surface of the connecting cavity 9 .

[0027] A water inlet tube cavity 11 is disposed on one side of the partition plate 10 close to the water storage cavity 7 , and one end of the water inlet tube cavity 11 is communicated with the water storage cavity 7 ; condensed water in the water storage cavity 7 flows into the water inlet tube cavity 11 .

[0028] A water outlet cavity 12 is disposed on the other side of the partition plate 10 , and the water inlet cavity 11 and the water outlet cavity 12 are connected to each other through the top of the partition plate 10 .

[0029] A water outlet channel 14 is provided between one side of the water outlet tube cavity 12 and the water outlet 6 , and the water outlet tube cavity 12 is connected to the water outlet 6 through the water outlet channel 14 .

[0030] A sealing cover 5 is disposed above the partition plate 10 in the communicating cavity 9 , and a lower end surface of the sealing cover 5 is used to cover the communicating portion between the water inlet pipe cavity 11 and the water outlet pipe cavity 12 .

[0031] A compression spring 15 is arranged above the sealing cover 5 , and the compression spring 15 outputs elastic force to push the sealing cover 5 downward, so that the sealing cover 5 is used to seal the connection between the water inlet pipe cavity 11 and the water outlet pipe cavity 12 .

[0032] With such a design, in the initial state, the compression spring 15 outputs elastic force to push the sealing cover 5 downward, so that the sealing cover 5 is used to seal the connection between the water inlet pipe cavity 11 and the water outlet pipe cavity 12. At this time, the water inlet pipe cavity 11 and the water outlet pipe cavity 12 are no longer connected.

[0033] When the sealing cover 5 moves upward, the sealing cover 5 compresses the compression spring 15. At this time, the sealing cover 5 is used to open the connection between the water inlet pipe cavity 11 and the water outlet pipe cavity 12. At this time, the condensed water in the water inlet pipe cavity 11 flows into the water outlet pipe cavity 12 through the position of the sealing cover 5, and then is discharged through the water outlet channel 14 and the water outlet 6 for convenient use.

[0034] In this embodiment, a groove 501 is provided on the lower end surface of the sealing cover 5, and a sink 502 is provided on the inner surface of the groove 501 at a position corresponding to the upper ports of the water inlet pipe cavity 11 and the water outlet pipe cavity 12, and the depth of the sink 502 is greater than the depth of the groove 501.

[0035] A water delivery channel 503 is provided between two adjacent sinks 502 at the middle of the groove 501 , and the water delivery channel 503 is located directly above the partition plate 10 .

[0036] The cross-sectional shapes of the sink 502 match the outer surface shapes of the corresponding upper ports of the water inlet pipe cavity 11 and the water outlet pipe cavity 12 respectively.

[0037] With such a design, when the compression spring 15 outputs elastic force to push the sealing cover 5 onto the water inlet pipe cavity 11 and the water outlet pipe cavity 12, the upper ports of the water inlet pipe cavity 11 and the water outlet pipe cavity 12 are respectively located in the trough 502. At this time, the inner top surface of the trough 502 cooperates with the upper ports of the water inlet pipe cavity 11 and the water outlet pipe cavity 12 to seal the water inlet pipe cavity 11 and the water outlet pipe cavity 12 to prevent the water inlet pipe cavity 11 and the water outlet pipe cavity 12 from being connected.

[0038] When the sealing cover 5 moves upward by one end, the moving distance of the sealing cover 5 is greater than the opening depth of the groove 501 and less than the opening depth of the sink 502. At this time, the upper ports of the water inlet pipe cavity 11 and the water outlet pipe cavity 12 are still arranged in the groove 501, but the water delivery channel 503 located in the middle of the groove 501 between the two adjacent sinks 502 moves upward, so that the two adjacent sinks 502 are connected.

[0039] At this time, the water inlet lumen 11 and the water outlet lumen 12 are connected, so that the water in the water inlet lumen 11 flows into the water outlet lumen 12 .

[0040] In this embodiment, the upper projection shape of the water inlet tube cavity 11 and the water outlet tube cavity 12 is a cylindrical tube.

[0041] In this embodiment, a sealing plate 101 is fixedly installed above the partition plate 10 . When the sealing cover 5 covers the water inlet tube cavity 11 and the water outlet tube cavity 12 , the sealing plate 101 is used to fill the water delivery cavity 503 to achieve encapsulation of the water delivery cavity 503 .

[0042] The mounting block 8 has a mounting cavity 16 in which a solenoid valve 4 is disposed. The working end of the solenoid valve 4 is arranged vertically downward, and a control rod 17 is fixedly connected to the working end of the solenoid valve 4 .

[0043] A control handle 19 is disposed on one side of the sealing cover 5 close to the control rod 17 , and one end of the control handle 19 away from the sealing cover 5 is fixedly connected to the lower end of the control rod 17 .

[0044] The solenoid valve 4 is powered by an external power supply. When the solenoid valve 4 is powered on, its working end works. At this time, the working end of the solenoid valve 4 drives the control rod 17 to move. The movement of the control rod 17 drives the sealing cover 5 to move upward through the control handle 19, thereby opening the connection between the water inlet pipe cavity 11 and the water outlet pipe cavity 12.

[0045] When the electromagnetic valve 4 is powered off, the electromagnetic valve 4 stops working. At this time, the compression spring 15 outputs elastic force to push the sealing cover 5 downward, so that the sealing cover 5 is used to seal the connection between the water inlet pipe cavity 11 and the water outlet pipe cavity 12.

[0046] In this embodiment, when the condensed water fills the water storage cavity 7 and the liquid level of the condensed water is higher than the detection end of the capacitive sensor 3, the solenoid valve 4 is immediately activated. At this time, the solenoid valve 4 works to drive the sealing cover 5 to move upward through the control rod 17 and the control handle 19, thereby opening the connection between the water inlet pipe cavity 11 and the water outlet pipe cavity 12. At this time, the condensed water in the water storage cavity 7 flows into the water outlet pipe cavity 12 through the water inlet pipe cavity 11 and is discharged through the water outlet channel 14 and the water outlet 6.

[0047] When the water storage cavity 7 is empty or the liquid level does not reach the set value, the solenoid valve 4 is in a closed state. At this time, the compression spring 15 outputs elastic force to push the sealing cover 5 downward, so that the sealing cover 5 is used to seal the connection between the water inlet pipe cavity 11 and the water outlet pipe cavity 12, thereby avoiding the loss of compressed air.

[0048] In this embodiment, the output end of the capacitive sensor 3 is electrically connected to a main controller, and the output end of the main controller is electrically connected to a control end of the solenoid valve 4 .

[0049] With such a design, the capacitive sensor 3 works continuously and is used to detect the liquid level in the water storage cavity 7. The capacitive sensor 3 sends a detection signal to the main controller, and the main controller sends a control signal based on the detection signal of the capacitive sensor 3 to control the operation of the solenoid valve 4.

[0050] The output of the main controller is electrically connected to a timer, and the timer is used to time the working time and the stopping time of the solenoid valve 4.

[0051] The main controller is provided with a preset threshold value for the solenoid valve working time and a preset threshold value for the solenoid valve periodic start time.

[0052] The main controller sends a control signal to control the delayed operation of the solenoid valve 4, that is, the timer is used to time the working time of the solenoid valve 4. When the working time of the solenoid valve 4 reaches a preset threshold of the solenoid valve working time, the main controller sends a control signal to control the solenoid valve 4 to close, so that the solenoid valve 4 works for a period of time and then closes, thereby ensuring that the condensed water in the water storage cavity 7 can be completely discharged, thereby improving the use effect.

[0053] The timer is also used to time the stop time of the solenoid valve 4 and send it to the main controller. When the stop time of the solenoid valve 4 is equal to the preset threshold of the solenoid valve cycle start time, the main controller sends a control signal to control the operation of the solenoid valve 4.

[0054] With this design, the solenoid valve 4 can be controlled to achieve periodic start-up through the cooperation of the timer and the main controller. When the time since the last drainage is long enough and the air compressor is in a shutdown state, the main controller sends a control signal to control the solenoid valve 4 to open and perform drainage operations.

[0055] For those skilled in the art, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the protection scope of the present invention.

Claims

1. A drainage device for an intercooler of a magnetically suspended air compressor, comprising an outer shell (2), characterized in that: A water storage cavity (7) is provided in the outer shell (2), a water inlet (1) is provided on one side of the outer shell (2), the water inlet (1) is communicated with the water storage cavity (7), a detection component for detecting the water level in the water storage cavity (7) is provided in the water storage cavity (7), a water outlet (6) is provided on one side of the outer shell (2), a valve body component for controlling the opening and closing of the water outlet (6) is provided at the water outlet (6), the detection component and the valve body component are controlled in linkage, after the detection component detects that the water level in the water storage cavity (7) reaches a set water level, the detection component sends a control signal for controlling the valve body component to open, at which time the water in the water storage cavity (7) is discharged through the water outlet (6).

2. The drainage device for an intercooler of a magnetically suspended air compressor according to claim 1, characterized in that: The detection component comprises a capacitive sensor (3) arranged on the top surface of the water storage cavity (7), and a detection end of the capacitive sensor (3) is arranged downward and located at the highest liquid level position in the water storage cavity (7).

3. The drainage device for an intercooler of a magnetically suspended air compressor according to claim 2, characterized in that: The valve body assembly comprises a mounting block (8), a connecting cavity (9) is provided below the mounting block (8), a partition plate (10) is fixedly installed in the connecting cavity (9), and an upper end of the partition plate (10) is spaced apart from an upper end surface of the connecting cavity (9).

4. The drainage device for an intercooler of a magnetically suspended air compressor according to claim 3, characterized in that: A water inlet tube cavity (11) is provided on one side of the partition plate (10) close to the water storage cavity (7), and one end of the water inlet tube cavity (11) is in communication with the water storage cavity (7); a water outlet tube cavity (12) is provided on the other side of the partition plate (10), and the water inlet tube cavity (11) and the water outlet tube cavity (12) are in communication with each other through the top of the partition plate (10); and a water outlet channel (14) is provided between one side of the water outlet tube cavity (12) and the water outlet (6).

5. The drainage device for an intercooler of a magnetically suspended air compressor according to claim 4, characterized in that: A sealing cover (5) is provided in the communication cavity (9) above the partition plate (10), and the lower end surface of the sealing cover (5) is used to cover the connection between the water inlet pipe cavity (11) and the water outlet pipe cavity (12).

6. The drainage device for an intercooler of a magnetically suspended air compressor according to claim 5, characterized in that: A compression spring (15) is arranged above the sealing cover (5), and the compression spring (15) outputs elastic force to push the sealing cover (5) downward, so that the sealing cover (5) is used to seal the connection between the water inlet pipe cavity (11) and the water outlet pipe cavity (12).

7. The drainage device for an intercooler of a magnetically suspended air compressor according to claim 6, characterized in that: A groove (501) is provided on the lower end surface of the sealing cover (5); a sink groove (502) is provided on the inner surface of the groove (501) at a position corresponding to the upper ports of the water inlet pipe cavity (11) and the water outlet pipe cavity (12); the depth of the sink groove (502) is greater than the depth of the groove (501); a water delivery channel (503) is provided between two adjacent sink grooves (502) at the middle position of the groove (501); the water delivery channel (503) is located directly above the partition plate (10).

8. The drainage device for an intercooler of a magnetically suspended air compressor according to claim 7, characterized in that: The cross-sectional shape of the trough (502) matches the outer surface shapes of the upper ports of the corresponding water inlet pipe cavity (11) and water outlet pipe cavity (12).

9. The drainage device for an intercooler of a magnetically suspended air compressor according to claim 8, characterized in that: A sealing plate (101) is fixedly mounted above the partition plate (10); when the sealing cover (5) covers the water inlet tube cavity (11) and the water outlet tube cavity (12), the sealing plate (101) is used to fill the water delivery cavity (503) to achieve encapsulation of the water delivery cavity (503).

10. A drainage device for an intercooler of a magnetically suspended air compressor according to claim 9, characterized in that: The mounting block (8) is provided with a mounting cavity (16), a solenoid valve (4) is arranged in the mounting cavity (16), a working end of the solenoid valve (4) is arranged vertically downward, and a control rod (17) is fixedly connected to the working end of the solenoid valve (4); a control handle (19) is provided on a side of the sealing cover (5) close to the control rod (17), and an end of the control handle (19) away from the sealing cover (5) is fixedly connected to the lower end of the control rod (17).

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