An adjustable small flow throttle valve for compressor lubricating oil pipeline

Abstract

The utility model discloses an adjustable small flow throttle valve for the lubricating oil pipeline of a compressor, comprising a valve body, a valve core, a valve seat, a fastening screw and a spring; a mounting hole is provided at the top of the valve body, the bottom of the mounting hole is communicated with a vertical circular hole below it, a horizontal inlet and an outlet are provided at the bottom of the valve body and are located on both sides of the vertical circular hole, and the inlet, outlet and vertical circular hole are cross-connected; the lower part of the valve seat is installed in the mounting hole of the valve body, the valve seat is provided with a central through hole and the through hole is coaxially opposite to the vertical circular hole; the valve core is arranged in the lower part of the through hole and in the vertical circular hole, the valve core comprises an upper threaded section and a lower cylindrical section, the upper part of the threaded section is threadedly connected with the lower part of the through hole of the valve seat, and a straight groove is provided at the top of the threaded section to adjust the vertical position of the valve core; the fastening screw is threadedly connected to the upper part of the through hole, and the spring is pressed between the fastening screw and the valve core. The utility model can realize the small flow regulation required by lubricating oil-using equipment.

Description

Technical Field

[0001] The utility model relates to an adjustable small flow throttle valve for a compressor lubricating oil pipeline. Background Art

[0002] In the oil pipeline of the compressor device, a throttle valve is generally installed on each branch pipe of the oil-consuming equipment to adjust the oil consumption and pressure of the oil-consuming equipment. Figure 1 As shown in the figure. Some oil-using equipment uses a small amount of oil and has a low pressure, and has very high requirements for the throttle valve to adjust the small flow rate. The throttle valves of this type of structure commonly used at present are insufficient in their ability to adjust the small flow rate. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an adjustable small-flow throttle valve for a compressor lubricating oil pipeline, so as to solve the deficiencies in the small-flow regulation of the throttle valve for the lubricating oil pipeline of the existing compressor device, meet the small-flow regulation function, and realize the small-flow regulation needs of the lubricating oil-using equipment.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An adjustable small flow throttle valve for a compressor lubricating oil pipeline comprises a valve body, a valve core, a valve seat, a fastening screw and a spring;

[0006] The top of the valve body is provided with a mounting hole, the bottom center of the mounting hole is connected to the vertical circular hole below it, the lower part of the valve body is provided with an inlet and an outlet located on both sides of the vertical circular hole, and the inlet, outlet and vertical circular hole are connected in a cross shape;

[0007] The lower part of the valve seat is installed in the installation hole, and the valve seat is provided with a central through hole and the through hole is coaxially opposite to the vertical circular hole;

[0008] The valve core is arranged in the lower part of the through hole and the vertical circular hole, and the valve core includes an upper threaded section and a lower cylindrical section, the upper part of the threaded section is threadedly connected with the lower part of the through hole, and a straight groove is arranged at the top of the threaded section to adjust the vertical position of the valve core;

[0009] The fastening screw is threadedly connected to the upper part of the through hole, and the spring is located in the through hole and pressed between the fastening screw and the valve core.

[0010] The utility model also includes the following technical features:

[0011] Specifically, the mounting hole is a circular threaded hole, the valve seat is threadedly connected to the mounting hole, and a sealing gasket is provided at the connection between the valve seat and the mounting hole.

[0012] Specifically, a sealing gasket is provided at the connection between the fastening screw and the through hole.

[0013] Specifically, the inner wall of the mounting hole is an M24 thread.

[0014] Specifically, the through hole has a thread of M8×1; the vertical circular hole at the bottom of the valve body is a hole of φ9.

[0015] Specifically, the threaded section of the valve core is an M8×1 thread, and the diameter of the cylindrical section is

[0016] Specifically, the cylindrical section of the valve core is located in the vertical circular hole, and the flow rate of the outlet can be controlled by rotating the valve core to adjust the vertical position of the valve core; the length of the valve core is 41 mm, and the length of the cylindrical section is 20 mm.

[0017] Specifically, the groove width of the straight groove is 2 mm and the groove depth is 4 mm.

[0018] Specifically, the inner diameter of the inlet and the outlet is φ27.5, the depth of the inlet and the outlet is 10 mm, and the inlet and the outlet are connected to the vertical circular hole through a connecting hole of φ9 respectively.

[0019] Specifically, the height of the valve body is 60 mm, and the distance between the central axis of the connecting hole and the bottom surface of the valve body is 22 mm.

[0020] Compared with the prior art, the utility model has the following technical effects:

[0021] The utility model throttle valve is improved in particular on the valve core, has low manufacturing cost, can meet the use of adjusting the amount of lubricating oil used in the turbine unit, can be converted into a universal throttle valve, mass-produced, and can be promoted and used in various turbine manufacturers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the oil pipeline for the compressor device and the throttle valves on the branches of each oil-consuming equipment.

[0023] Figure 2 This is a schematic diagram of the structure of the throttle valve of the utility model.

[0024] Figure 3 This is a schematic diagram of the valve core structure of the utility model.

[0025] The meaning of each number in the figure is:

[0026] 1. Valve body, 2. Valve core, 3. Valve seat, 4. Fastening screws, 5. Spring, 6. Sealing gasket; 11. Mounting hole, 12. Vertical round hole, 13. Inlet, 14. Outlet, 15. Connecting hole; 21. Threaded section, 22. Cylindrical section, 23. Slotted groove; 31. Through hole. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of the present application fall within the protection scope of the present invention.

[0028] Embodiment 1:

[0029] like Figure 2 and Figure 3 As shown, this embodiment provides an adjustable small flow throttle valve for a compressor lubricating oil pipeline, comprising a valve body 1, a valve core 2, a valve seat 3, a fastening screw 4 and a spring 5.

[0030] A mounting hole 11 is provided on the top of the valve body 1, and the bottom center of the mounting hole 11 is connected to a vertical circular hole 12 below it. An inlet 13 and an outlet 14 are provided at the lower part of the valve body 1 and are located on both sides of the vertical circular hole 12. The inlet 13, the outlet 14 and the vertical circular hole 12 are connected in a cross shape.

[0031] The lower part of the valve seat 3 is installed in the installation hole 11 . The valve seat 3 is provided with a central through hole 31 , and the through hole 31 is coaxially opposite to the vertical circular hole 12 .

[0032] The valve core 2 is arranged in the lower part of the through hole 31 and the vertical circular hole 12. The valve core 2 includes an upper threaded section 21 and a lower cylindrical section 22. The upper part of the threaded section 21 is threadedly connected to the lower part of the through hole 31. A straight groove 23 is provided at the top of the threaded section 21 to adjust the vertical position of the valve core 2.

[0033] The fastening screw 4 is threadedly connected to the upper portion of the through hole 31 , and the spring 5 is located in the through hole 31 and pressed between the fastening screw 4 and the valve core 2 .

[0034] The mounting hole 11 is a circular threaded hole, the valve seat 3 is threadedly connected to the mounting hole 11 , and a sealing gasket 6 is provided at the connection between the valve seat 3 and the mounting hole 11 .

[0035] A sealing gasket 6 is provided at the connection between the fastening screw 4 and the through hole 31 .

[0036] The inner wall of the mounting hole 11 is a M24 thread.

[0037] The through hole 31 has a thread of M8×1; the vertical circular hole 12 is a hole of φ9.

[0038] The threaded section 21 of the valve core 2 is a M8×1 thread, and the diameter of the cylindrical section 22 is

[0039] The cylindrical section 22 of the valve core 2 is located in the vertical circular hole 12. The flow rate of the outlet 14 can be controlled by rotating the valve core 2 to adjust the vertical position of the valve core 2. The length of the valve core 2 is 41 mm, and the length of the cylindrical section 22 is 20 mm.

[0040] The slot width of the slot 23 is 2 mm, and the slot depth is 4 mm.

[0041] The inner diameter of the inlet 13 and the outlet 14 is φ27.5, the depth of the inlet 13 and the outlet 14 is 10 mm, and the inlet 13 and the outlet 14 are connected to the vertical circular hole 12 through a connecting hole 15 of φ9 respectively.

[0042] The height of the valve body 1 is 60 mm, and the distance between the central axis of the connecting hole 15 and the bottom surface of the valve body 1 is 22 mm.

[0043] During use, the utility model can adjust the overlapping length of the cylindrical section of the valve core and the vertical circular hole by rotating the valve core, thereby controlling the flow area of ​​the φ8 hole and realizing small flow regulation.

[0044] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications (such as size, shape), and these simple modifications all belong to the protection scope of the present invention.

[0045] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0046] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. An adjustable small flow throttle valve for a compressor lubricating oil pipeline, characterized in that: It comprises a valve body (1), a valve core (2), a valve seat (3), a fastening screw (4) and a spring (5); The valve body (1) is provided with a mounting hole (11) at the top, the bottom center of the mounting hole (11) is connected to a vertical circular hole (12) below the mounting hole, and the lower part of the valve body (1) is provided with an inlet (13) and an outlet (14) located on both sides of the vertical circular hole (12), and the inlet (13), the outlet (14) and the vertical circular hole (12) are connected in a cross shape; The lower part of the valve seat (3) is installed in the installation hole (11), and the valve seat (3) is provided with a central through hole (31), and the through hole (31) is coaxially opposite to the vertical circular hole (12); The valve core (2) is arranged in the lower part of the through hole (31) and in the vertical circular hole (12), the valve core (2) comprises an upper threaded section (21) and a lower cylindrical section (22), the upper part of the threaded section (21) is threadedly connected to the lower part of the through hole (31), and a straight groove (23) is provided at the top of the threaded section (21) to adjust the vertical position of the valve core (2); The fastening screw (4) is threadedly connected to the upper part of the through hole (31), and the spring (5) is located in the through hole (31) and pressed between the fastening screw (4) and the valve core (2).

2. The adjustable small flow throttle valve for the compressor lubricating oil pipeline according to claim 1, characterized in that: The mounting hole (11) is a circular threaded hole, the valve seat (3) is threadedly connected to the mounting hole (11), and a sealing gasket (6) is provided at the connection between the valve seat (3) and the mounting hole (11).

3. The adjustable small flow throttle valve for the compressor lubricating oil pipeline according to claim 1, characterized in that: A sealing gasket (6) is provided at the connection between the fastening screw (4) and the through hole (31).

4. The adjustable small flow throttle valve for the compressor lubricating oil pipeline according to claim 1, characterized in that: The inner wall of the mounting hole (11) is an M24 thread.

5. The adjustable small flow throttle valve for the compressor lubricating oil pipeline according to claim 1, characterized in that: The through hole (31) has an M8×1 thread inside; the vertical circular hole (12) at the bottom of the valve body (1) is a φ9 hole.

6. The adjustable small flow throttle valve for the compressor lubricating oil pipeline according to claim 1, characterized in that: The threaded section (21) of the valve core (2) is an M8×1 thread, and the diameter of the cylindrical section (22) is .

7. The adjustable small flow throttle valve for the compressor lubricating oil pipeline according to claim 1, characterized in that: The cylindrical section (22) of the valve core (2) is located in the vertical circular hole (12), and the flow rate of the outlet (14) can be controlled by rotating the valve core (2) to adjust the vertical position of the valve core (2); the length of the valve core (2) is 41 mm, and the length of the cylindrical section (22) is 20 mm.

8. The adjustable small flow throttle valve for the compressor lubricating oil pipeline according to claim 1, characterized in that: The groove width of the straight groove (23) is 2 mm, and the groove depth is 4 mm.

9. The adjustable small flow throttle valve for the compressor lubricating oil pipeline according to claim 1, characterized in that: The inner diameter of the inlet (13) and the outlet (14) is φ27.5, the depth of the inlet (13) and the outlet (14) is 10 mm, and the inlet (13) and the outlet (14) are connected to the vertical circular hole (12) through a connecting hole (15) of φ9 respectively.

10. The adjustable small flow throttle valve for the compressor lubricating oil pipeline according to claim 9, characterized in that: The height of the valve body (1) is 60 mm, and the distance between the central axis of the connecting hole (15) and the bottom surface of the valve body (1) is 22 mm.

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