Temperature control combination valve for air compressor

Abstract

The utility model belongs to the technical field of combination valve, concretely relates to a temperature control combination valve for air compressor, including combination valve body, the one side of combination valve body is shaped with cavity no.

Description

Technical Field

[0001] This utility model relates to the field of combined valve technology, and specifically to a temperature control combined valve for an air compressor. Background Technology

[0002] Air compressor combination valves refer to combined regulating valves used to control the air delivery of air compressors. Combination regulating valves are a type of regulating valve with a high efficiency mechanical transmission mechanism. The combination regulating valve series adopts a modular design, and can be combined into various types of self-operated regulating valves through assemblies. The advantage of combination regulating valves is that they can adapt to different needs and are multi-functional combination valves that can be combined as needed.

[0003] For example, Chinese Utility Model Patent No. CN201920952858.6 discloses a combined valve for an oil-injected screw compressor, including a cylinder body and a valve body. The cylinder body is fitted onto the lower end of the valve body. A pressure-holding spring is installed on the lower end of the cylinder body via a spring seat. A check valve core, a pressure-holding valve core, and a check spring are provided in the valve body. A pressure-holding valve core is provided at the lower end of the check valve core. A check spring is fitted onto the check valve core. An oil distribution pipe is installed at the upper end of the cylinder body. A combined valve inlet, a combined valve outlet, a secondary oil return interface, and a control vent are opened on the side of the valve body.

[0004] The existing combination valve has a complex structure and only has a check valve function, which is a single function. Therefore, its structure needs to be further improved. Utility Model Content

[0005] The purpose of this invention is to provide a temperature control combination valve for air compressors, which solves the problems of existing valves having single functions and complex structures through reasonable structural design.

[0006] The purpose of this utility model is achieved as follows: A temperature control combination valve for an air compressor includes a combination valve body. One side of the combination valve body has a cavity one, and the other end has a cavity two. An oil inlet channel is provided between cavity two and cavity one. An oil inlet hole is provided at the lower end of the oil inlet channel, and a safety valve mounting hole is provided on the upper side wall of the oil inlet channel. The upper end of the oil inlet channel is connected to the upper end of cavity one. An oil separator core is installed at the upper end of cavity one. A pressure relief port is provided on the lower side wall of cavity one. A flow channel one is formed at the lower end of cavity one, and a minimum pressure valve is installed within the flow channel one. The side wall of the flow channel one... A pressure sensor mounting hole is provided, and an exhaust port is provided on the other side wall of the flow channel one. An oil filter is installed at the upper end of the cavity two. A retaining ring is formed inside the cavity two, and a temperature control valve is movably arranged inside the retaining ring. An outlet is provided on the side wall of the temperature control valve. An oil suction port is provided at one end of the cavity two and is connected to the inlet of the temperature control valve. An oil inlet and an oil outlet of the radiator are respectively provided on the side wall of the other end of the cavity two. The oil inlet of the radiator is located on the side of the temperature control valve, and one end of the oil outlet of the radiator is connected to the oil filter. The oil outlet of the radiator is located in front of the temperature control valve, and the oil suction port is located in front of the temperature control valve.

[0007] Preferably, the temperature control valve includes a cylinder, a temperature control valve spring, a stop block, and a temperature control element. The outlet is provided on the side wall of the cylinder. The temperature control valve spring abuts against one end of the cylinder and the second cavity. A stop block is installed at the other end of the second cavity. A temperature control element is provided between the stop block and the cylinder.

[0008] Preferably, the lower end of the oil filter and the combined valve body are provided with an oil injection port.

[0009] Preferably, the minimum pressure valve includes a valve cap, a valve core, a valve core spring, a piston, and a piston spring. The valve cap is installed at one end of the flow channel. The piston is movably disposed inside the valve cap. The piston spring is disposed between the piston and the valve cap. The valve core is connected to the piston. The valve core spring is disposed between the valve core and the piston. The valve core is disposed at the outlet end of the flow channel.

[0010] Preferably, a sealing ring is provided between the valve core and the air outlet end of the flow channel.

[0011] Preferably, the oil separator core has an oil return port on its side.

[0012] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0013] This invention utilizes a temperature control valve design, where the valve core adjusts the oil passage between the valve body and the housing by extending and retracting according to the principle of thermal expansion and contraction. This controls the proportion of lubricating oil entering the oil cooler, thereby ensuring that the rotor temperature remains within a set range. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0016] Figure 3 This is a side view of the structure of this utility model.

[0017] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure at point AA.

[0018] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure at point BB.

[0019] Reference numerals in the attached diagram: 1-Combined valve body; 2-Cavity 1; 3-Cavity 2; 4-Oil inlet channel; 5-Oil inlet hole; 6-Safety valve mounting hole; 7-Oil separator core; 8-Pressure relief port; 9-Flow channel 1; 10-Minimum pressure valve; 11-Pressure sensor mounting hole; 12-Exhaust port; 13-Oil filter; 14-Steel retainer; 15-Thermostatic valve; 16-Outlet; 17-Oil suction port; 18-Radiator oil inlet hole; 19-Radiator oil outlet hole; 20-Cylinder body; 21-Thermostatic valve spring; 22-Steel retainer; 23-Thermostatic element; 24-Injector port; 25-Valve cap; 26-Valve core; 28-Piston; 30-Sealing ring; 31-Oil return port. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-5As shown, a temperature control combination valve for an air compressor includes a combination valve body 1. A cavity 2 is formed on one side of the combination valve body 1, and a cavity 3 is formed on the other end. An oil inlet channel 4 is provided between the cavity 3 and the cavity 2. An oil inlet hole 5 is provided at the lower end of the oil inlet channel 4, and a safety valve mounting hole 6 is provided on the upper side wall of the oil inlet channel 4. The upper end of the oil inlet channel 4 is connected to the upper end of the cavity 2. An oil separator core 7 is installed at the upper end of the cavity 2 for separating the mist-like oil-gas mixture in the compressed air. A pressure relief port 8 is provided on the lower side wall of the cavity 2, and a flow channel 9 is formed at the lower end of the cavity 2. A minimum pressure valve 10 is installed in the flow channel 9 to prevent excessively low internal pressure, thereby ensuring the oil-gas separation effect. The side wall of the flow channel 9... A pressure sensor mounting hole 11 is provided on the upper part of the cavity 9. An exhaust port 12 is provided on the other side wall of the flow channel 9. An oil filter 13 is installed at the upper end of the cavity 2 3. A retaining ring 14 is formed inside the cavity 2 3. A temperature control valve 15 is movably arranged inside the retaining ring 14. An outlet 16 is provided on the side wall of the temperature control valve 15. An oil suction port 17 is provided at one end of the cavity 2 3. The oil suction port 17 is connected to the inlet of the temperature control valve 15. An oil inlet port 18 and an oil outlet port 19 are provided on the other side wall of the cavity 2 3. The oil inlet port 18 is located on the side of the temperature control valve 15. One end of the oil outlet port 19 is connected to the oil filter 13. The oil outlet port 19 is located in front of the temperature control valve 15. The oil suction port 17 is located behind the temperature control valve 15.

[0022] This invention utilizes a temperature control valve design, where the valve core adjusts the oil passage between the valve body and the housing by extending and retracting according to the principle of thermal expansion and contraction. This controls the proportion of lubricating oil entering the oil cooler, thereby ensuring that the rotor temperature remains within a set range.

[0023] The temperature control valve 15 includes a cylinder 20, a temperature control valve spring 21, a stop block 22, and a temperature control element 23. The cylinder 20 has an outlet 16 on its side wall for oil to pass through. One end of the cylinder 20 is in contact with the second cavity 3, where the temperature control valve spring 21 is located. The other end of the second cavity 3 is equipped with a stop block 22. The temperature control element 23 is located between the stop block 22 and the cylinder 20. The temperature control element 23 is affected by temperature and will push the cylinder 20 to move, thereby connecting the outlet 16 with the radiator oil inlet 18 or the radiator oil outlet 19.

[0024] The lower end of the oil filter 13 and the combined valve body 1 are provided with an oil injection port 24.

[0025] The minimum pressure valve 10 includes a valve cap 25, a valve core 26, a valve core spring, a piston 28, and a piston spring. The valve cap 25 is installed at one end of the flow channel 9. The piston 28 is movably disposed inside the valve cap 25. The piston spring abuts against the piston 28 and the valve cap 25. The valve core 26 is connected to the piston 28. The valve core spring abuts against the valve core 26 and the piston 28. The valve core 26 abuts against the outlet end of the flow channel 9. This technical solution, through the design of the minimum pressure valve, ensures that when the pressure in the cavity 2 is lower than the set minimum value, the minimum pressure valve will close to prevent gas backflow in the system; when the pressure in the cavity 2 exceeds the set minimum value, the minimum pressure valve will open to allow gas to pass through and continue to flow to the subsequent system.

[0026] A sealing ring 30 is provided between the valve core 26 and the air outlet end of the flow channel 9 to improve the sealing performance.

[0027] The oil separator core 7 has an oil return port 31 on its side.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A temperature control combination valve for an air compressor, characterized in that, The system includes a combined valve body (1), one side of which is formed with a cavity one (2), and the other end of which is formed with a cavity two (3). An oil inlet channel (4) is provided between the cavity two (3) and the cavity one (2). An oil inlet hole (5) is provided at the lower end of the oil inlet channel (4). A safety valve mounting hole (6) is provided on the upper side wall of the oil inlet channel (4). The upper end of the oil inlet channel (4) is connected to the upper end of the cavity one (2). An oil separator core (7) is installed at the upper end of the cavity one (2). A pressure relief port (8) is provided on the lower side wall of the cavity one (2). A flow channel one (9) is formed at the lower end of the cavity one (2). A minimum pressure valve (10) is installed in the flow channel one (9). A pressure sensor mounting hole (11) is provided on the side wall of the flow channel one (9). A pressure sensor mounting hole (11) is provided on the other side wall of the flow channel one (9). An exhaust port (12) is provided. An oil filter (13) is installed at the upper end of the second cavity (3). A retaining ring (14) is formed inside the second cavity (3). A temperature control valve (15) is movably arranged inside the retaining ring (14). An outlet (16) is opened on the side wall of the temperature control valve (15). An oil suction port (17) is opened at one end of the second cavity (3). The oil suction port (17) is connected to the inlet of the temperature control valve (15). A radiator oil inlet hole (18) and a radiator oil outlet hole (19) are respectively opened on the side wall of the other end of the second cavity (3). The radiator oil inlet hole (18) is located on the side of the temperature control valve (15). One end of the radiator oil outlet hole (19) is connected to the oil filter (13). The radiator oil outlet hole (19) is located in front of the temperature control valve (15). The oil suction port (17) is located behind the temperature control valve (15).

2. The temperature control combination valve for an air compressor according to claim 1, characterized in that: The temperature control valve (15) includes a cylinder (20), a temperature control valve spring (21), a stop block (22), and a temperature control element (23). The outlet (16) is provided on the side wall of the cylinder (20). The temperature control valve spring (21) abuts against one end of the cylinder (20) and the second cavity (3). The stop block (22) is installed at the other end of the second cavity (3). The temperature control element (23) is provided between the stop block (22) and the cylinder (20).

3. The temperature control combination valve for an air compressor according to claim 1, characterized in that: The lower end of the oil filter (13) and the combined valve body (1) are provided with an oil injection port (24).

4. The temperature control combination valve for an air compressor according to claim 1, characterized in that: The minimum pressure valve (10) includes a valve cap (25), a valve core (26), a valve core spring, a piston (28), and a piston spring. The valve cap (25) is installed at one end of the flow channel (9). The piston (28) is movably disposed inside the valve cap (25). The piston spring is abutted between the piston (28) and the valve cap (25). The valve core (26) is connected to the piston (28). The valve core spring is abutted between the valve core (26) and the piston (28). The valve core (26) is abutted at the outlet end of the flow channel (9).

5. The temperature control combination valve for an air compressor according to claim 4, characterized in that: A sealing ring (30) is provided between the valve core (26) and the air outlet end of the flow channel (9).

6. The temperature control combination valve for an air compressor according to claim 1, characterized in that: The oil separator core (7) has an oil return port (31) on its side.

Images