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Fluid on-off method and fluid on-off device

A fluid, on-off technology, applied in valve devices, marine engineering, coastline protection, etc., can solve problems such as automatic dredging and decompression, and achieve the effect of small energy loss

Active Publication Date: 2013-06-19
叶晓丰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Another object of the present invention is to solve the problem that the prior art fluid on-off method and fluid on-off device cannot realize automatic dredging and decompression when the pressure difference between the high-pressure end and the low-pressure end exceeds the safe range after the interception, and provides a Fluid on-off method and fluid on-off device capable of automatically dredging and reducing pressure to ensure safety

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0034] A fluid on-off method, suitable for fluid on-off occasions with high and low liquid level differences, comprising the following steps:

[0035] a. Make a pipe into an up and down shape, and connect its two ends to the high liquid level end and the low liquid level end respectively.

[0036] b. Let the fluid flow into the fluid on-off device, push the air at the lower end of the undulating section of the pipe, and seal part of the air at the upper end of the undulating section in the undulating wave crest to form an air seal section 4, so that the lower end of the undulating section is fluid and the upper end is air fluid breaker.

[0037] c. Open the filling and exhausting port on the top of the undulating section, open the filling and exhausting port to exhaust when the flow is open, so that the space occupied by the air seal section 4 is reduced to the point where the fluid cannot be sealed and the filling and exhausting port is closed. At this time, the upper end of ...

Embodiment 2

[0040] A fluid on-off method, suitable for fluid on-off occasions with high and low liquid level differences, comprising the following steps:

[0041] a. Make a pipe into a shape of ups and downs, and connect the two ends to the high liquid level end and the low liquid level end respectively.

[0042] b. Let the fluid flow into the fluid on-off device, push the air at the lower end of the undulating section of the pipe, and seal part of the air at the upper end of the undulating section in the undulating wave crest to form an air seal section 4, so that the lower end of each undulating section is fluid and the upper end A fluid on-off device for air.

[0043] c. Open the filling and exhausting port on the top of the undulating section, open the filling and exhausting port to exhaust when the flow is open, so that the space occupied by the air seal section 4 is reduced to the point where the fluid cannot be sealed and the filling and exhausting port is closed. At this time, the...

Embodiment 3

[0048] A fluid on-off method, suitable for fluid on-off occasions with high and low liquid level differences, comprising the following steps:

[0049] d. Make a pipe into a shape that undulates up and down in sequence, and connect the two ends to the high liquid level end and the low liquid level end respectively.

[0050] e. Let the fluid flow into the fluid on-off device, push the air at the lower end of the undulating section of the pipe, and seal part of the air at the upper end of the undulating section in the undulating wave crest to form an air seal section 4, so that the lower end of each undulating section is fluid and the upper end A fluid on-off device for air.

[0051] f. Open the filling and exhausting port on the top of the undulating section, and open the filling and exhausting port to exhaust when the flow is open, so that the space occupied by the air seal section 4 is reduced to the point where the fluid cannot be sealed and the filling and exhausting port is...

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PUM

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Abstract

The invention discloses a fluid on-off method and a fluid on-off device which are good in safety and stability. Due to the adoption of the fluid on-off method and the fluid on-off device, cutoff is conducted through the whole device, and main pressure is not borne by a single place. The fluid on-off method and the fluid on-off device overcome the defects that the prior fluid on-off device needs to use a closure member which is easy to damage. The fluid on-off device comprises a high liquid level connector and a lower liquid level connector. At least one cavity is placed between the high liquid level connector and the lower liquid level connector. Cavities are sequentially communicated. Fluid which is closured is filled in the cavities. Each cavity further comprises an air seal section which separates the fluid in the cavities into front fluid sections and rear fluid sections. The heights of the front fluid sections are larger than those of the rear fluid sections. Air-charging and air-discharging openings are placed on the top of the cavities. The fluid on-off method and the fluid on-off device are suitable for applicative occasions of the prior fluid on-off device, and have the advantages of being capable of automatically dredging and reducing pressure, high in safety and stability and the like.

Description

[0001] technical field [0002] The invention relates to the field of fluid control, in particular to a fluid on-off method and a fluid on-off device. [0003] Background technique [0004] In production and life, it is often necessary to cut off the flow of the fluid and make it circulate. The flow characteristic of the fluid under the influence of no external force is to flow from the high liquid level end to the low liquid level end. The existing method of controlling the flow of the fluid is basically to use the interceptor to cut off and open the flow, that is, to use the interceptor to cut off the high liquid level when the flow is cut off. The passage between the liquid level end and the low liquid level end. When the flow is opened, the throttle is released to open the passage between the high liquid level end and the low liquid level end. Common valves use this principle to realize fluid interception and opening, and the interceptor in the valve is also the spool....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K13/08
CPCF16K13/00E02B7/18
Inventor 叶晓丰
Owner 叶晓丰