Two-section pneumatic control system with any opening degree adjustable

A pneumatic control system, two-stage technology, applied in the direction of engine components, valve details, valve operation/release devices, etc., can solve the problems of complex control system, large energy consumption, large size, etc., to reduce production costs, Simple structure and fewer parts

Pending Publication Date: 2019-02-01
CHAODA VALVE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the control system of the original solution is not only complicated, but also has a huge size and a large energy consumption. Once there is a new quantitative requirement beyond the adjustable range of ±5%, a new controller and control system must be replaced

Method used

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  • Two-section pneumatic control system with any opening degree adjustable
  • Two-section pneumatic control system with any opening degree adjustable
  • Two-section pneumatic control system with any opening degree adjustable

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] refer to figure 1 , figure 2 and image 3 , a two-stage pneumatic control system with adjustable opening, including a pneumatic actuator 1 and a valve 11, the pneumatic actuator 1 includes a cylinder head 1-1, a piston 1-2, a cylinder body 1-3 and an output shaft 1 -4, the cylinder head 1-1 is set on the cylinder body 1-3, the piston 1-2 is engaged with the output shaft 1-4 for transmission, and the driving piston 1-2 is arranged between the piston 1-2 and the cylinder head 1-1. The spring 1-5 that moves the center position of the cylinder body 1-3, the output shaft 1-4 is linked with the valve 11 and used to control the opening and closing of the valve 11, the pneumatic actuator 1 is an existing mature technology, and in this embodiment the pneumatic actuator The device 1 adopts a common type 90° angular stroke single cylinder spring return type p...

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Abstract

The invention discloses a two-section pneumatic control system with any opening degree adjustable. The two-section pneumatic control system comprises a pneumatic actuator, a valve, a power source, a main solenoid valve, an auxiliary solenoid valve, a gas source, a set switch, a controller, an opening-position limiting switch and a closing-position limiting switch. The gas source is in gas transportation connection with the main solenoid valve, and the main solenoid valve and the auxiliary solenoid valve are both two-position three-way solenoid valves. The pneumatic actuator, the main solenoidvalve and the auxiliary solenoid valve are sequentially connected and achieve gas interaction, and the opening-position limiting switch and the closing-position limiting switch are both arranged on the pneumatic actuator to detect the fully-opened state and the fully-closed state of the vales and feed back corresponding fully-opened signals and fully-closed signals to the controller. The set switch is arranged between the auxiliary solenoid valve and an auxiliary power source in series, and when the set switch is turned on, the gas interaction between the main solenoid valve and the auxiliarysolenoid valve can be cut off. The two-section pneumatic control system with any opening degree adjustable has the following advantages and beneficial effects of being concise in structure, convenientto operate, capable of saving energy and adjustable in any opening degree.

Description

technical field [0001] The invention relates to the field of valve control systems, in particular to a two-stage pneumatic control system with adjustable opening. Background technique [0002] At present, with the rapid development of industry, the control requirements for valves are not only more and more, but also higher and higher. For example, in the oil quantitative output system, ordinary on-off ball valves or butterfly valves are used, but often There are various opening requirements such as half-open and half-close, 30% opening, or 70% opening, etc., but this kind of valve is different from a regulating valve, and it does not need to automatically adjust the opening at any time, but needs a long time. A certain opening angle is fixed in time to obtain a fixed flow output, but the size of the opening angle needs to be determined according to the fixed flow requirement. [0003] In the past, the solution to this demand was to design and manufacture a special two-stage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/02F16K31/122F16K31/06
CPCF16K31/02F16K31/06F16K31/122
Inventor 叶建中邱晓来王汉洲胡高攀黄硕程
Owner CHAODA VALVE GRP
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