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Eccentric compensation valve

A compensation valve and eccentric technology, applied in the field of eccentric compensation valve, can solve problems such as leakage and poor reliability of valve closing

Pending Publication Date: 2021-05-28
YANTAI JASON VALVE & PUMP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the present invention provides an eccentric compensation valve, which solves the problems of poor closing reliability of existing valves and easy leakage after use and wear.

Method used

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  • Eccentric compensation valve
  • Eccentric compensation valve
  • Eccentric compensation valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] see figure 1 with figure 2 , provide an eccentric compensation valve, including a valve body 1, the upper end of the valve body 1 is connected with an upper cover body 2, the lower end of the valve body 1 is connected with a lower cover body 3, and the side wall of the valve body 1 is provided with several channel, the inside of the valve body 1 is provided with a valve core 4; Off-centre position between plates 7;

[0034] The upper side of the upper baffle plate 6 is connected with an upper output shaft 8, and the lower side of the lower baffle plate 7 is connected with a lower output shaft 9, and the radial direction of the upper output shaft 8 and the lower output shaft 9 is provided with side pushing Positioning member 10; the upper output shaft 8 is provided with an upper bearing 11, and the lower output shaft 9 is provided with a lower bearing 12, and the upper bearing 11 and the lower bearing 12 are both located on the outside of the side push positioning mem...

Embodiment 2

[0042] see image 3 , to provide an eccentric compensation valve. On the basis of Embodiment 1, the drive shaft 15 passes through the top of the upper bearing cover 13, and a drive shaft 15 and the upper bearing cover 13 are provided with a transmission for pushing back and pressing thread; the top of the upper outlet shaft 8 is formed with a drive hole 16 , and the end of the drive shaft 15 is in the drive hole 16 . At the same time, a friction member 17 is provided inside the driving hole 16 , and the friction member 17 is in contact with the end of the drive shaft 15 ; an anti-rotation pin 18 is provided between the upper bearing cover 13 and the upper cover body 2 . A compression spring 19 is provided between the friction member 17 and the bottom of the driving hole 16 .

[0043] In this embodiment, the drive shaft 15 has an external thread, the upper bearing cap 13 has an internal thread at the matching part of the drive shaft 15, and the connection between the upper out...

Embodiment 3

[0048] see Figure 5 , Image 6 and Figure 7 , to provide an eccentric compensation valve. On the basis of Embodiment 1, an inner pressure sleeve 20 is provided between the upper bearing cover 13 and the upper cover body 2, and the drive shaft 15 passes through the center of the inner pressure sleeve 20; The outer periphery of the inner pressure sleeve 20 is provided with an outer pressure sleeve 21 , and the inner pressure sleeve 20 and the outer pressure sleeve 21 are threaded. The top of the upper outlet shaft 8 is formed with a driving hole 16, and the end of the driving shaft 15 is in the driving hole 16; the driving shaft 15 is provided with a ring groove 22 at the opening position of the driving hole 16, and the The top wall of the hole 16 is placed in said annular groove 22 . A compression spring 19 is provided between the lower end of the drive shaft 15 and the bottom of the drive hole 16 , and a compression spring 19 is also provided in the annular groove 22 . A...

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PUM

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Abstract

Provided is an eccentric compensation valve. A valve element comprises a middle partition plate, an upper baffle and a lower baffle, and the middle partition plate is located at the eccentric position between the upper baffle and the lower baffle; the upper side of the upper baffle is connected with an upper output shaft, the lower side of the lower baffle is connected with a lower output shaft, and side pushing positioning pieces are arranged in the radial direction of the upper output shaft and the lower output shaft; the upper output shaft is provided with an upper bearing, the lower output shaft is provided with a lower bearing, the upper bearing and the lower bearing are both located on the outer sides of the side pushing positioning pieces, and the side pushing positioning pieces enable the geometric circle center of the valve element and the rotating circle center of the valve element to be eccentric; an upper bearing cover is arranged on the outer side of the upper bearing, and the outer wall of the upper bearing cover is matched with the inner wall of a valve body; a lower bearing cover is arranged on the outer side of the lower bearing, and the outer wall of the lower bearing cover is matched with the inner wall of the valve body; and the upper output shaft is connected with a driving shaft which extends out of an upper cover body. According to the side pushing positioning pieces, pre-bias sealing can be conducted on the valve element, the shape of the valve element is changed, the internal leakage amount is greatly reduced, fluid resistance is reduced, and the operation reliability of the valve under the pressure difference and the temperature difference is enhanced.

Description

technical field [0001] The invention belongs to the technical field of valves, in particular to an eccentric compensation valve. Background technique [0002] At present, during the application of the valve, the wear of the valve is inevitable. After the valve is worn for a long time, if there is no compensation, the leakage will become larger and larger. [0003] For example, in the field of air-conditioning valves, if the valve leaks, it will cause refrigerant leakage and cause environmental pollution. In the field of ball valves, due to the use of spherical valve cores, the contact area between the drive rod and the valve core is small, the strength is low, and the service life is long. Short and fragile. Moreover, in some flammable and explosive places, as well as the use environment to prevent pollution, the scheme of valve plus actuator can no longer meet the requirements of high reliability. A kind of technical scheme that effectively prevents leakage is urgently ne...

Claims

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Application Information

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IPC IPC(8): F16K5/04F16K5/08F16K5/18F16K27/06F16K27/08
CPCF16K5/0407F16K5/0442F16K5/0464F16K5/0478F16K5/0485F16K5/08F16K5/18F16K27/065F16K27/08
Inventor 贾菁
Owner YANTAI JASON VALVE & PUMP CO LTD