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Built-in diaphragm type sleeve valve

A sleeve valve, diaphragm type technology, applied in valve details, safety valve, balance valve and other directions, can solve the problems of poor energy dissipation effect, poor anti-cavitation, poor anti-rubbish ability, etc., to achieve simple structure, sealing Good performance and cost reduction effect

Active Publication Date: 2016-06-08
SHANGHAI KARON VALVES MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The commonly used sleeve valve types in the water supply system are fixed cone type, multi-nozzle type, piston valve, curved neck type (Y type), etc. The opening and closing of these valves must be driven by external force (electric device or cylinder). Some products have complex structure and large installation space, and are expensive; some products have poor energy dissipation effect; some products have poor fluidity and poor cavitation resistance; some products have poor anti-garbage ability and are prone to failure; , but due to the need to rely on electric equipment to drive, and the larger the surface area, the higher the cost, and at the same time the current regulation is not linear

Method used

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Experimental program
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Effect test

Embodiment 1

[0041] The present invention can work in pressure relief valve mode, such as Figure 4 As shown, the working principle of the pressure reducing valve is:

[0042] The principle is that the pressure signal collected by the pressure sensor behind the valve is transmitted to the remote central control PLC, and then the main valve is controlled by the PLC. Once the downstream flow increases and the pressure drops, the sensor immediately sends a signal to the PLC, and the PLC immediately instructs to open the solenoid valves B and D, the opening of the main valve increases, and the pressure immediately recovers to the design value, and the solenoid valves B and D are closed; When the flow rate decreases and the pressure rises, the PLC will command to open the solenoid valves A and C, the opening of the main valve will decrease, and the pressure will return to the set value, and the solenoid valves A and C will be closed.

Embodiment 2

[0044] The present invention can work in pressure relief valve mode, such as Figure 5 As shown, the working principle of the pressure relief valve is:

[0045] The principle is to collect the pressure signal by the pressure sensor in front of the valve and transmit it to the remote central control PLC, and then the PLC controls the main valve. Once the system pressure exceeds the set pressure, the sensor immediately sends a signal to the PLC, and the PLC immediately commands to open the solenoid valves B and D, close the solenoid valves A and C, and the main valve immediately opens to release pressure; otherwise, the system pressure is lower than the set value , then the PLC commands to close solenoid valves B and D, open solenoid valves A and C, and the main valve is closed.

Embodiment 3

[0047] The present invention can work in flow control valve mode, such as Figure 6 As shown, the working principle of the flow control valve is:

[0048]Once the remote central control PLC sets the standard given flow rate, the signal detected by the flowmeter is immediately fed back to the PLC. If the flow rate exceeds the set value, the PLC sends a signal command to open the solenoid valves A and C (the solenoid valves B and D are closed ), the pressure in the front chamber of the diaphragm drops, the main valve acts to close the valve, and the flow rate decreases to the set value; if the flow rate is lower than the set value, the flowmeter feeds back the signal to the PLC, and the central control sends an instruction to open the solenoid valve B, D (solenoid valves A and C are closed), the pressure in the back chamber of the diaphragm drops, the main valve opens, and the supplementary flow reaches a given value.

[0049] Figure 7 The piping diagram for the pneumatic con...

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Abstract

The invention relates to a built-in diaphragm type sleeve valve. The built-in diaphragm type sleeve valve comprises a valve body, a sleeve gate arranged in the valve body, and a valve base mounted on a flange in an outlet of the valve body. The sleeve valve further comprises a control component, a movement component and a diaphragm cavity component; the control component is arranged above the valve body; the movement component and the diaphragm cavity component are arranged in the valve body; the back end of the movement component is connected with the control component through a distribution pipe, and the front end is connected with the sleeve gate by penetrating through the diaphragm cavity component; and when the sleeve valve performs an opening / closing action, the control component detects and controls pressure in the diaphragm cavity component through the distribution pipe so as to control the movement component to drive the sleeve gate to move so as to realize the opening / closing action of the valve. Compared with the prior art, the built-in diaphragm type sleeve valve has such advantages as simple structure, low cost, good fluid state, excellent energy dissipation and cavitation resistance, multiple driving modes, powerful functions, low opening / closing force and reduction of extension connecting cost.

Description

technical field [0001] The invention relates to a sleeve valve, in particular to a sleeve valve with a built-in diaphragm. Background technique [0002] The commonly used sleeve valve types in the water supply system are fixed cone type, multi-nozzle type, piston valve, curved neck type (Y type), etc. The opening and closing of these valves must be driven by external force (electric device or cylinder). Some products have complex structure and large installation space, and are expensive; some products have poor energy dissipation effect; some products have poor fluidity and poor cavitation resistance; some products have poor anti-garbage ability and are prone to failure; , but due to the need to rely on electric equipment to drive, and the larger the surface area, the higher the cost, and the current regulation is not linear. Contents of the invention [0003] The object of the present invention is to provide a simple structure, low cost, good flow state, good energy diss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/26F16K31/128F16K37/00F16K27/04
CPCF16K17/26F16K27/041F16K31/1266F16K31/128F16K37/0008
Inventor 李政宏
Owner SHANGHAI KARON VALVES MACHINERY
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