Redundancy gas supply system for pneumatic valve execution mechanism
An actuator, pneumatic valve technology, applied in engine components, valve operation/release devices, valve details, etc., can solve problems such as increased cost, production continuity impact, long maintenance operation time, etc., and achieve the effect of preventing normal control.
Active Publication Date: 2017-01-04
BAOSHAN IRON & STEEL CO LTD
View PDF10 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Therefore, the failure of the solenoid valve is often sudden. In the process of troubleshooting, due to the start and stop of the electric and gas media, the maintenance work takes a long time, which has a great impact on the continuity of production and also improves the production efficiency. the cost of
[0006] Pneumatic valve is an important equipment in modern industrial automatic control system, and its working status will directly affect the normal and stability of the whole production system. Therefore, a redundant air supply system for pneumatic valve actuators is needed, which can effectively avoid Production system shutdown due to abnormality of air source control components
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The redundant air supply system for pneumatic valve actuators of the present invention will be described in further detail below in conjunction with the drawings and specific embodiments, but it is not intended to limit the present invention.
[0016] refer to Figure 1-2 , The redundant air supply system for pneumatic valve actuators of the present invention includes first and second solenoid valves SV1, SV2, pneumatic reversing valve HXV, delay relay RT, relay R0, and control / alarm devices.
[0017] Among them, the input ends of the first and second solenoid valves SV1 and SV2 are connected to the gas source P.S. (the output port of the gas source P.S. can be connected with a pressure reducing valve so as to adjust the output gas pressure), the first and the second The output ends of the solenoid valves SV1 and SV2 are respectively connected to the first and second inlet ports 1 and 2 of the pneumatic reversing valve HXV, and the outlet port 3 of the pneumatic reversi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a redundancy gas supply system for a pneumatic valve execution mechanism. Input ends of a first solenoid valve and a second solenoid valve are both connected with a gas source; output ends of the first solenoid valve and the second solenoid valve are respectively connected with a first gas inlet end and a second gas inlet end of a pneumatic reversing valve; a gas outlet end of the pneumatic reversing valve is connected with the pneumatic valve execution mechanism; a control / alarm device is used for outputting a control signal to control a relay to excite and eliminate magnetism; coils of the first solenoid valve and the second solenoid valve are connected with a power supply through a normal opening connecting point of the relay; a time delay relay is further connected in series between the coil of the second solenoid valve and the relay; a reset connecting point of the time delay relay is connected with the power supply through a normal closed connecting point of the relay; a start connecting point of the time delay relay is connected with the power supply through the normal opening connecting point of the relay. By adopting the redundancy gas supply system for the pneumatic valve execution mechanism, the situation that normal operation of a system is damaged by solenoid valve faults can be prevented.
Description
technical field [0001] The invention relates to a redundant air supply system for pneumatic valve actuators. Background technique [0002] The pneumatic valve is composed of an actuator (film mechanism or cylinder mechanism) and a valve body. The purpose of driving and controlling the valve switch or valve position opening is achieved through the actuator and the supporting pneumatic components. Pneumatic valves are widely used in control systems of various process media due to their fast response, large load capacity and no electrical contacts. The control methods of pneumatic valves include regulating valves with continuous opening changes and on / off two-position control switch valves. For the pneumatic valves of important control circuits, solenoid valves are equipped as interlocking conditions for operation control, and mandatory in emergency situations. Safety valve position control. [0003] In the chain control system of pneumatic valves of various important process...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F16K11/24F16K37/00F16K31/06F16K31/12
CPCF16K11/24F16K31/0603F16K31/0675F16K31/12F16K37/0025
Inventor 胡建平卢殿阁邓加华
Owner BAOSHAN IRON & STEEL CO LTD