CN213954373U

CN213954373U - Gas proportion butterfly valve

Info

Publication number: CN213954373U
Application number: CN202022816265.2U
Authority: CN
Inventors: 朱宏亮; 马正光; 金诚
Original assignee: Wuxi Rich Intelligent Equipment Co Ltd
Current assignee: Wuxi Rich Intelligent Equipment Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-08-13
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to a control valve technical field specifically is a gas proportion butterfly valve, its simple structure, and is with low costs, and control is reliable and stable, and it includes the valve body, install rotatable valve plate in the valve body, drive arrangement is connected through the pivot to the valve plate, a serial communication port, drive arrangement is pneumatic actuator, the A port and the B port of tribit five-way valve are connected respectively to two gas connections of pneumatic actuator, the export of air-vent valve is connected through first choke valve to the P port of tribit five-way valve, compressed air is let in the import of air-vent valve, the A port of two three-position three-way valves is all connected to the R port and the S port of tribit five-way valve, the R port of two three-position three-way valves is connected through the second choke valve for gas vent, P port the export of air-vent valve.

Description

Gas proportion butterfly valve

Technical Field

The utility model relates to a control valve technical field specifically is a gas proportion butterfly valve.

Background

In the lithium battery processing field, the material business turn over material needs strict control flow, generally all adopts the butterfly valve to control, and driven butterfly valve control is accomplished by servo motor, and the cost is higher, and servo motor can realize the angular adjustment of higher accuracy, but the cost is higher, and the butterfly valve need often maintain a certain angle a period of time in addition, when the material is heavier or the flow is great, causes great impact to servo motor easily, influences servo motor life, and stability is relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the current butterfly valve control is with high costs, the utility model provides a gas proportion butterfly valve, its simple structure, it is with low costs, control reliable and stable.

The technical scheme is as follows: the utility model provides a gas proportion butterfly valve, its includes the valve body, install rotatable valve plate in the valve body, the valve plate passes through the pivot and connects drive arrangement, a serial communication port, drive arrangement is pneumatic actuator, the A port and the B port of three-position five-way valve are connected respectively to two gas receiving ports of pneumatic actuator, the export of air-vent valve is connected through first choke valve to the P port of three-position five-way valve, compressed air is let in to the import of air-vent valve, the A port of two three-position three-way valves is all connected to the R port and the S port of three-position five-way valve, the R port of two three-position three-way valves is gas vent, the P port passes through the second choke valve and connects the export of air-vent valve.

The silencer is further characterized in that a silencer is installed at the P port of the two-position three-way valve.

Adopt the utility model discloses afterwards, the valve plate of butterfly valve is controlled through pneumatics, adjusts target in place by the A port of tribit five-way valve and the admitting air and the exhaust control valve plate of B port, simple structure, and is with low costs, and the valve plate is adjusted and is died by the lock of tribit five-way valve after target in place, lets the valve plate locking at current position, and control is undetermined reliably.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the pneumatic control of the present invention.

Detailed Description

Referring to fig. 1 and 2, the gas proportional butterfly valve comprises a valve body 1, a rotatable valve plate 2 is installed in the valve body 1, the valve plate 2 is connected with a driving device through a rotating shaft, the driving device is a pneumatic actuator 3, two air receiving ports of the pneumatic actuator 3 are respectively connected with an A port and a B port of a three-position five-way valve 4, a P port of the three-position five-way valve 4 is connected with an outlet of a pressure regulating valve 6 through a first throttling valve 5, compressed air is introduced into an inlet of the pressure regulating valve 6, an R port and an S port of the three-position five-way valve 4 are both connected with an A port of a two-position three-way valve 7, an R port of the two-position three-way valve 7 is an air outlet, and the P port is connected with the outlet of the pressure regulating valve 6 through a second throttling valve 8.

In order to reduce noise during exhaust, a muffler 9 is mounted at the P port of the two-position three-way valve 7.

The working principle is as follows: compressed gas enters from a P port of the three-position five-way valve 4 through the pressure regulating valve and the first throttle valve, in order to realize the rotation of the valve plate 2, the A port and the B port need to be controlled to have one air inlet and one air outlet, the P port and the A port are communicated to inlet air and the B port is connected with the S port, the air is exhausted from an R port of the two-position three-way valve 7, when the target set value is approached, the two-position three-way valve is switched to the P port to inlet air and is connected with the three-position five-way S port, so that the left and right of the inner cavity of the butterfly valve actuator are balanced; when the valve plate 2 needs to rotate reversely, the port B is used for air intake, the port A is used for air exhaust, when the valve plate 2 rotates to the position, the three-position five-way valve 4 is locked, and the valve plate 2 is locked at the current position by air pressure balance; when the adjustment is over, the gas that the multirow was discharged flows back from second choke valve 8 and is makeed the tonifying qi, lets valve plate 2 reverse rotation to required position.

Claims

1. The utility model provides a gas proportion butterfly valve, its includes the valve body, install rotatable valve plate in the valve body, the valve plate passes through the pivot and connects drive arrangement, a serial communication port, drive arrangement is pneumatic actuator, the A port and the B port of three-position five-way valve are connected respectively to two gas receiving ports of pneumatic actuator, the export of air-vent valve is connected through first choke valve to the P port of three-position five-way valve, compressed air is let in to the import of air-vent valve, the A port of two three-position three-way valves is all connected to the R port and the S port of three-position five-way valve, the R port of two three-position three-way valves is gas vent, the P port passes through the second choke valve and connects the export of air-vent valve.

2. The gas proportional butterfly valve of claim 1, wherein a muffler is installed at a P-port of the two-position three-way valve.