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Pendulum-type flap reversing valve

A pendulum type, reversing valve technology, used in valve devices, multi-port valves, mechanical equipment, etc., can solve the problems of small rotor channel and flow channel interface, large friction resistance between valve core and valve body, and large angle change range. , to achieve the effect of reducing the range of motion, improving operating efficiency, and improving sealing performance

Inactive Publication Date: 2012-01-11
NANTONG CELLULOSE FIBERS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the rotation angle of the spool (valve plate) in this patent is not large, the interface between the rotor channel and the flow channel is small, and the material flow is not smooth.
[0004] The document with the patent No. 200610154462.4 discloses a "three-way valve". The valve core has a crescent-shaped cross-section against a cylindrical valve body. Larger, slower reversing speed, greater energy consumption of the drive mechanism

Method used

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  • Pendulum-type flap reversing valve
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  • Pendulum-type flap reversing valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: The angle at which the outer side 16 of the valve plate can rotate around the rotating shaft 7 is 30°; the included angle between the axis of the through hole B6 and the axis of the through hole C9 is 30°. The sealing strip 12 is polytetrafluoroethylene. The valve casing 3 corresponding to the sealing strip 12 is connected with a locking screw 11 , and by rotating the locking screw 11 , the gap between the valve casing 3 , the sealing strip 12 and the rotating shaft 7 can be adjusted. The valve plate 10 is rectangular, the cross-sectional shape of the valve cavity is similar to the valve plate 10, and the maximum gap between the valve plate 10 and the valve housing is <0.2mm. The driving form of the driving device 1 is pneumatic driving or manual driving.

Embodiment 2

[0028] Embodiment 2: The angle at which the outer side 16 of the valve plate can be rotated is 30°-45°; the included angle between the axis line of the through hole B6 and the axis line of the through hole C9 is 45°. The sealing strip 12 is silica gel. The valve casing 3 corresponding to the sealing strip 12 is connected with a locking screw 11 , and by rotating the locking screw 11 , the gap between the valve casing 3 , the sealing strip 12 and the rotating shaft 7 can be adjusted. The valve plate 10 is trapezoidal, the cross-sectional shape of the valve cavity is similar to the valve plate 10, and the maximum gap between the valve plate 10 and the valve housing 3 is <0.5mm. The driving form of the driving device 1 is electric driving or manual driving. The valve plate 10 is made of alloy steel. One end of the rotating shaft 7 can be connected with a sensor, the signal line of the sensor is connected to the console 17, the sensor can transmit the position signal of the valv...

Embodiment 3

[0029] Embodiment 3: The angle at which the outer side 16 of the valve plate can rotate is 45°; the included angle between the axis of the through hole B6 and the axis of the through hole C9 is 30°-60°. The sealing strip 12 is ceramic. The valve casing 3 corresponding to the sealing strip 12 is connected with a locking screw 11 , and by rotating the locking screw 11 , the gap between the valve casing 3 , the sealing strip 12 and the rotating shaft 7 can be adjusted. The valve plate 10 is drum-shaped, the cross-sectional shape of the valve chamber is similar to the valve plate 10, and the maximum gap between the valve plate 10 and the valve housing 3 is <1mm. The drive forms of the drive device 1 are hydraulic drive and manual drive. The valve plate 10 is made of plastic. One end of the rotating shaft 7 can be connected with a sensor, the signal line of the sensor is connected to the console 17, the sensor can transmit the position signal of the valve plate 10 to the console ...

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PUM

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Abstract

The invention provides a pendulum-type flap reversing valve which comprises a valve casing, a valve cavity, a valve plate, a rotary shaft, a shaft seat, three through holes, a valve end cover, a connecting rod and a driving device; and additionally, a console is connected with the reversing valve; the rotary shaft is arranged in the valve cavity, and tightly close to the valve casing through a gasket of a sealing strip; the driving device is connected with the connecting rod, the connecting rod is connected with the rotary shaft, the rotary shaft is fixedly connected to the inside of the valve plate, and the valve plate can rotate around the rotary shaft; the outside of the valve plate moves between a position X and a position Y, and correspondingly, a communication between a through hole A and a through hole B is converted into a communication between the through hole and a through hole C, thereby realizing the reversing of material flow; the rotating angle of the outside of the valve plate is preferably 30-45 degrees; the valve plate is rectangular or ladder-shaped or in the shape of a waist drum, and the shape of the cross section of the valve cavity is similar to that of the valve plate; and the driving forms of the driving device comprise: a pneumatic driving form, an electric driving form, a hydraulic driving form or a manual driving form. The pendulum-type flap reversing valve provided by the invention has the characteristics that the rotating angle of the valve plate is small, the area of friction between the valve plate and the valve casing is small, the failure rate is low when in use, and the flowability of materials is good.

Description

technical field [0001] The invention relates to a three-way reversing valve, in particular to a pendulum type flap reversing valve which can realize the reversing function by rotating a valve core (valve plate) at a small angle. Background technique [0002] We know that in the production of cellulose acetate raw material sheets, particles or powders and other sheets, particles, powders, fluids, etc., the products are transported to the silo through the wind pressure or hydraulic pressure in the pipeline, and the pipeline in the pipeline The flow direction of the material is switched by the reversing valve, which can realize the distribution of the material to different silos. For a long time, the plate type rotary directional valve has been widely used in the transmission pipeline. Its working principle is: through the rotation of the valve core, the output port of the valve is in different states of open / closed, so as to switch the flow direction. Due to the large rotatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/044
Inventor 黄建昌刘峰冯展高春红杨占平陆书明
Owner NANTONG CELLULOSE FIBERS CO LTD