Automatic water and oil drainage device of air compressor

Abstract

The utility model belongs to the technical field of fluid, and discloses an automatic water and oil drainage device of an air compressor, which is mainly applied to intelligent transformation projects of small air compressors and mainly used for separating particulate matters after oil-water atomization in compressed air through an improved oil-water separator. When the oil-water liquid level is higher than the liquid level of the sensor, the drainage electromagnetic valve is automatically switched on, and when the oil-water liquid level is lower than the liquid level of the drainage electromagnetic valve, the drainage electromagnetic valve is switched off automatically under the action of the spring. The design can be applied to an outlet of a gas conveying pipeline of an air compressor, the device effectively reduces human intervention, and compared with an existing oil and water discharging device, the oil and water of the oil and water separator can be discharged without shutdown or manual operation. Oil and water can be discharged in time, human intervention is reduced, potential risks of equipment use are reduced, and it is guaranteed that gas equipment cannot be damaged due to the fact that compressed air contains oil and water impurities.

Description

Technical Field

[0001] The utility model relates to fluid technology, in particular to an automatic water and oil discharge device for an air compressor. Background Art

[0002] When air compressors pass through an oil-water separator, oil and water are separated. Over time, this mixture accumulates. Conventional oil-water separators require this to be drained when the compressor is shut down. As the air pressure decreases, a spring springs open the valve to release the mixture. However, in actual production, equipment typically does not shut down to ensure continuous operation, requiring operators to manually drain the fluid. Oversight or untimely drainage can lead to excessively high fluid levels, impairing the oil-water separation process and impacting the normal operation of gas-using equipment. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model provides an automatic water and oil discharge device for an air compressor, which drives the valve core to move downward through the solenoid valve, opens the drain port, and automatically discharges the oil-water mixture.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] The automatic water and oil drainage device of the air compressor includes an electromagnetic actuator located below the liquid storage tank. The electromagnetic actuator includes an oil and water drainage sealing ring, a return spring base, a return spring, a solenoid valve, and a valve core. One end of the valve core penetrates into the hole of the solenoid valve coil and moves back and forth, and the other end passes through the return spring and is connected to the oil and water drainage sealing ring. The return spring is provided with a return spring base.

[0006] As a further solution of the present invention, the end face of the valve core in contact with the oil and water drainage sealing ring is provided with an elliptical convex head with a central protrusion, and a layer of sealing material is provided on the convex head. The oil and water drainage sealing ring is provided with a layer of O-type flanged sealing ring. The O-type flanged sealing ring and the convex head sealing material are tightly pressed together under the pressure of the return spring; when draining oil and water, the solenoid valve is energized and the compressed air pressure in the tank pushes the valve core downward, thereby draining water and oil.

[0007] As a further solution of the present invention, the valve core is located inside the return spring.

[0008] As a further solution of the present invention, a solenoid valve fixing base is provided at the lower end of the solenoid valve.

[0009] As a further solution of the present invention, the liquid storage tank is provided with a liquid level switch and a power supply. One end of the liquid level switch is connected to the positive pole of the power supply, and the other end is connected to the positive pole of the solenoid valve. The negative pole of the solenoid valve is connected to the negative pole of the power supply. When the liquid level switch is turned on, the solenoid valve is energized, driving the mechanism to complete the corresponding execution action.

[0010] As a further solution of the present invention, the power supply is connected to a power connector and a low-battery warning light.

[0011] As a further solution of the present invention, the liquid storage tank is provided with an air inlet and outlet flange, and a filter element located on the inner side.

[0012] The utility model has the following beneficial effects:

[0013] The utility model enables the electromagnetic valve to move downward, the drain port to open, and the oil-water mixture to be automatically discharged.

[0014] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the automatic water and oil discharge device for an air compressor of the utility model;

[0016] Figure 2 This is the electrical schematic diagram of the utility model. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and relevant knowledge, and described clearly and completely. Obviously, the applications described are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Reference Figure 1-Figure 2 As shown, the present invention's automatic water and oil drainage device for an air compressor includes an electromagnetic actuator located below the liquid storage tank. The electromagnetic actuator comprises an oil and water drainage seal ring 11, a return spring base 3, a return spring 4, a solenoid valve 5, and a valve core 6. One end of the valve core 6 reciprocates through the hole in the solenoid valve coil, while the other end passes through the return spring 4 and connects to the oil and water drainage seal ring 11. The return spring 4 is provided with a return spring base 3 to limit the lateral movement of the return spring 4. When drainage is required, the present invention uses the solenoid valve to drive the valve core downward, opening the drainage port and automatically discharging the oil-water mixture.

[0019] Specifically: the end face of the valve core 6 that contacts the oil and water drainage sealing ring 11 is provided with an elliptical convex head with a central protrusion, and a layer of sealing material is provided on the convex head. The oil and water drainage sealing ring 11 is provided with a layer of O-type flanged sealing ring. The O-type flanged sealing ring and the convex head sealing material are tightly pressed together under the pressure of the reset spring. This structure is similar to that of a plug. The O-type flanged sealing ring is tightly plugged by the elliptical convex head. When not working, the elliptical convex head is supported by the reset spring to achieve sealing. When draining oil and water, the solenoid valve is energized and the compressed air pressure in the tank pushes the valve core downward to drain water and oil. When resetting, the O-type flanged sealing ring is tightly plugged by the elliptical convex head.

[0020] In the present invention, the valve core 6 is located inside the reset spring 4, and a solenoid valve fixed base 12 is provided at the lower end of the solenoid valve 5. The reset spring 4 is used to reset the elliptical protrusion and support the seal between the elliptical protrusion and the O-shaped flange sealing ring.

[0021] Reference Figure 1 、 Figure 2 As shown, in the present invention, the liquid storage tank is provided with a liquid level switch 7 and a power supply 9. One end of the liquid level switch 7 is connected to the positive electrode of the power supply 9, and the other end is connected to the positive electrode of the solenoid valve 5. The negative electrode of the solenoid valve 5 is connected to the negative electrode of the power supply 9. When the liquid level switch 7 is turned on, the solenoid valve 5 is energized, driving the mechanism to complete the corresponding execution action. The solenoid valve 5 of the present invention is directly controlled by the liquid level switch 7. When the liquid level in the liquid storage tank rises and reaches the discharge height, the liquid level switch is turned on, and the solenoid valve 5 drives the valve core 6 to move downward, the discharge port is opened, and the oil-water mixture is automatically discharged. When the discharge is complete, the liquid level switch is disconnected, and the valve core 6 and the oil-water sealing ring 11 close the discharge port under the action of the reset spring 4. It should be noted in the present invention that the solenoid valve drives the valve core to move downward, and a normal power supply method can also be used. Automatic discharge requires observing the liquid level.

[0022] Furthermore, when the oil and water level stored in the tank rises above the sensor level, the drain solenoid valve 5 is automatically energized. When it falls below the drain level, the solenoid valve 5 is de-energized, and the drain seal 11 and valve core 6 automatically close due to the force of the return spring. This design can be used at the outlet of the air compressor gas pipeline, effectively reducing human intervention. Compared to existing oil and water drainage devices, this device does not require shutdown or manual operation to drain the oil and water from the oil-water separator. This allows for more timely drainage of oil and water, minimizing human intervention and reducing potential risks associated with equipment use, ensuring that gas-using equipment is not damaged by oil and water impurities in the compressed air.

[0023] As a further solution of the present invention, the power supply is connected with a power connector and a low-battery warning light. When the battery is too low, the indicator light flashes to remind the operator to replace the battery.

[0024] As a further solution of the present invention, the liquid storage tank is provided with an air inlet and outlet flange 1, and a filter element 2 located inside. When compressed air enters the oil-water separator tank, the compressed air is filtered through the filter element 2 and the oil and water are separated at the same time. The separated oil and water are stored at the bottom of the tank body. There is an oil-water drainage seal ring at the bottom. When there is little oil and water, this position is pressed by the return spring 4 to prevent air leakage and leakage of the oil-water mixture. The return spring 4 is stuck in the return spring base 3. When the liquid level reaches a certain level, the liquid level switch 7 senses it, the liquid level switch closes, the solenoid valve 5 is powered on, pushing the valve core 6 downward to open the drain port, and the oil-water mixture is discharged along the drain port. When the liquid level reaches the lower limit position of the liquid level switch 7, the liquid level switch is de-energized, and the valve core 6 and the oil-water drainage seal ring 11 close the drain port under the drive of the return spring 4 to complete the drainage action.

[0025] This new utility model can discharge the oil-water mixture in a timely manner, regardless of the equipment's operating status or human factors, greatly reducing the workload of equipment maintenance personnel, effectively protecting gas-using equipment and preventing damage to gas-using equipment, reducing downtime and achieving good economic benefits. This utility model optimizes and innovates the overall design and internal structure, adopts advanced design concepts to simplify the control method, reduce human intervention, reduce labor stress, and improve economic benefits.

[0026] The technical principles of the present invention have been described above in conjunction with specific embodiments, which are only preferred embodiments of the present invention. It should be understood that although this specification describes the embodiments, not each embodiment contains only one independent technical solution. This description is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the various embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art, all of which fall within the scope of protection of the present invention.

Claims

1. Automatic water and oil discharge device for air compressor, characterized by: It includes an electromagnetic actuator located below the liquid storage tank, which includes an oil and water drain sealing ring, a return spring base, a return spring, a solenoid valve, and a valve core; one end of the valve core penetrates into the hole of the solenoid valve coil to perform reciprocating motion, and the other end passes through the return spring and is connected to the oil and water drain sealing ring, and the return spring is provided with a return spring base.

2. The automatic water and oil discharge device for an air compressor according to claim 1, characterized in that: The end surface of the valve core that contacts the oil and water drainage sealing ring is provided with an elliptical convex head with a central protrusion, and a layer of sealing material is provided on the convex head. The oil and water drainage sealing ring is provided with a layer of O-type flanged sealing ring. The O-type flanged sealing ring and the convex head sealing material are tightly pressed together under the pressure of the return spring. When draining oil and water, the solenoid valve is energized and the compressed air pressure in the tank pushes the valve core downward, thereby draining water and oil.

3. The automatic water and oil discharge device for an air compressor according to claim 1, characterized in that: The valve core is located inside the return spring.

4. The automatic water and oil discharge device for an air compressor according to claim 1, characterized in that: A solenoid valve fixing base is provided at the lower end of the solenoid valve.

5. The automatic water and oil discharge device for an air compressor according to claim 1, characterized in that: The liquid storage tank is provided with a liquid level switch and a power supply. One end of the liquid level switch is connected to the positive pole of the power supply, and the other end is connected to the positive pole of the solenoid valve. The negative pole of the solenoid valve is connected to the negative pole of the power supply. When the liquid level switch is turned on, the solenoid valve is energized, driving the mechanism to complete the corresponding execution action.

6. The automatic water and oil discharge device for an air compressor according to claim 5, characterized in that: The power supply is connected with a power connector and a low-battery warning light.

7. The automatic water and oil discharge device for an air compressor according to claim 1, characterized in that: The liquid storage tank is provided with an air inlet and outlet flange, and a filter element located inside.

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