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Valve brake method

A force and preset technology, applied in the field of valve actuation, can solve the problems of inability to achieve valve sealing and valve sealing, etc.

Active Publication Date: 2019-10-18
HUIZHOU KINGLY MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, especially when the valve is closed, because the valve will be subject to fluid pressure, the valve cannot be sealed only by the position control valve; at the same time, due to a certain tolerance error in the manufacture of the valve, the valve is moved to Closed position does not achieve valve tightness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see figure 2 , figure 2 It is a cross-sectional view of the valve actuator of this embodiment. As shown in the figure, the valve actuating device includes a driving part 1, a jacking part 2, an elastic part 3, a valve body 4 and a valve seat 5, the driving part 1 is connected with the jacking part 2, and the elastic part 3 is arranged on the jacking part 2 Between the valve body 4 and between the elastic member 3 and the jacking member 2, a stress gauge 6 is provided. The valve body 4 is arranged in the valve seat 5 and protrudes from the top of the valve seat 5. When the valve actuating device in this embodiment is used to close the valve, the driver 1 and the stress strain gauge 6 of the valve actuating device in this embodiment are connected to the control system, and a plurality of preset closing tightnesses are stored in the control system. force.

[0030] The implementation of the valve actuation method specifically includes:

[0031] The control system obta...

Embodiment 2

[0036] see image 3 , image 3 It is a cross-sectional view of the valve actuator of this embodiment. As shown in the figure, the valve actuating device includes a driving part 1, a lifting part 2, an elastic part 3, a valve body 4, a valve seat 5 and a Hall sensor 7, the driving part 1 is connected with the lifting part 2, and the elastic part 3 is set Between the jacking member 2 and the valve body 4 , the elastic member 3 is a magnetic spring, the valve body 4 is set in the valve seat 5 and protrudes from the top of the valve seat 5 , and the Hall sensor 7 is set on the valve seat 5 . When the valve actuating device in this embodiment is used to close the valve, the driver 1 and the Hall sensor 7 of the valve actuating device in this embodiment are connected to the control system, and a plurality of preset closing and tightening devices are stored in the control system. force.

[0037] The implementation of the valve actuation method specifically includes:

[0038] The ...

Embodiment 3

[0044] see Figure 4 , Figure 4It is a cross-sectional view of the valve actuator of this embodiment. As shown in the figure, the valve actuating device includes a driving part 1, a lifting part 2, an elastic part 3, a valve body 4, a valve seat 5, a photoelectric sensor 8 and a photoelectric sensor 9, the driving part 1 is connected with the lifting part 2, The elastic part 3 is set between the lifting part 2 and the valve body 4, the valve body 4 is set in the valve seat 5 and protrudes from the top of the valve seat 5, the photoelectric sensor 8 is set on the lifting part 2, and the photoelectric sensor 9 is set on the valve body 4. When the valve actuator in this embodiment is used to close the valve, the driver 1, the photoelectric sensor 8 and the photoelectric sensor 9 of the valve actuator in this embodiment are connected to the control system, and there are preset values ​​stored in the control system. Set the closing force.

[0045] The implementation of the val...

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Abstract

The invention discloses a valve brake method. The valve brake method comprises the following steps: detecting whether acting force which is applied onto a valve for closing the valve is greater than preset closing force or not; and closing the valve under the acting force if the acting force is greater than the preset closing force. Compared with the prior art, the valve brake method disclosed bythe invention controls closing of the valve by detecting the size of acting force which is applied onto the valve for closing the valve, and the valve is closed when acting force which is applied ontothe valve for closing the valve is greater than preset closing force; and force control replaces position control in the prior art, so that the valve is kept in a sealed state after being closed.

Description

technical field [0001] The present invention relates to the technical field of control valves, in particular to a method for actuating a valve. Background technique [0002] The sealing of the valve is usually realized by the method of position control, and the closing of the valve is realized by driving the valve to move manually or by a driver. However, in practical applications, especially when the valve is closed, because the valve will be subjected to fluid pressure, the valve cannot be sealed only by the position control valve; at the same time, due to the certain tolerance type error in the valve manufacturing, the valve is moved to The closed position does not achieve a tight seal of the valve. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in the prior art, and to provide a method for actuating a valve, which includes the following steps: [0004] Detect whether the force applied to the valve to close th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/44F16K31/50
CPCF16K31/44F16K31/50
Inventor 王玉昌王巧军黎冬阳
Owner HUIZHOU KINGLY MOTOR CO LTD
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