CN215323334U - Wide static pressure regulator - Google Patents
Wide static pressure regulator Download PDFInfo
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- CN215323334U CN215323334U CN202120464645.6U CN202120464645U CN215323334U CN 215323334 U CN215323334 U CN 215323334U CN 202120464645 U CN202120464645 U CN 202120464645U CN 215323334 U CN215323334 U CN 215323334U
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Abstract
The utility model discloses a wide static pressure regulating device which comprises a testing pipeline, a first control valve, an air assembly, a pressure regulating piston rod and a pressure sensor, wherein one end of the testing pipeline is a testing end, the testing end is used for connecting a tested piece, the other end of the testing pipeline is a liquid inlet end and used for inputting liquid into the testing pipeline, the first control valve is arranged on the testing pipeline and is adjacent to the liquid inlet end, the air assembly comprises an air cavity and a second control valve, one end of the air cavity is connected with the position between the first control valve and the testing end on the testing pipeline, the second control valve is connected between the air cavity and the testing pipeline, a pressure regulating piston cylinder is connected with the position between the first control valve and the testing end on the testing pipeline, and the pressure sensor is used for detecting the pressure of the testing pipeline; the technical scheme of the utility model can realize large loading pressure range.
Description
Technical Field
The utility model relates to the technical field of airplane water system detection equipment, in particular to a wide static pressure regulating device.
Background
The static pressure loading is carried out on the tested piece by the maintenance and detection equipment for the aircraft water system, the loading pressure ranges from 0.25PSI to 400PSI, the loading pressure range is very large, if the pressure is regulated by the pressure sectional loading equipment, a plurality of sets of pressure regulating mechanisms are needed, and the structure is complex and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a wide static pressure regulating device, which can realize a large loading pressure range through a set of device.
In order to achieve the above object, the present invention provides a wide static pressure regulating device, comprising:
the device comprises a test pipeline, a liquid inlet pipeline and a liquid outlet pipeline, wherein one end of the test pipeline is a test end which is used for connecting a tested piece, and the other end of the test pipeline is a liquid inlet end which is used for inputting liquid into the test pipeline;
the first control valve is arranged on the testing pipeline and is adjacent to the liquid inlet end;
the air assembly comprises an air cavity and a second control valve, one end of the air cavity is connected with a position between the first control valve and the testing end on the testing pipeline, and the second control valve is connected between the air cavity and the testing pipeline;
the pressure regulating piston cylinder is connected to the position between the first control valve and the testing end on the testing pipeline; and the number of the first and second groups,
and the pressure sensor is used for detecting the pressure of the test pipeline.
Optionally, the first control valve is a high pressure on-off needle valve.
Optionally, the first control valve is a micro-pressure switch needle valve.
Optionally, the air assemblies are provided in plurality, and the volumes of the air cavities on the plurality of air assemblies are different.
Optionally, the volume of the air chamber is adjustably set.
Optionally, the air cavity comprises a first cavity and a second cavity in threaded sleeve connection with the first cavity, and one end of the second cavity is connected with the test pipeline.
The working process of the wide static pressure regulating device provided by the utility model is as follows:
during testing, the tested piece is connected to the testing end of the testing pipeline, the tested piece and the testing pipeline form a closed cavity filled with liquid, the air cavity is of a hollow structure, the interior of the air cavity is filled with air, and the air cavity is isolated by the second control valve;
installing a tested piece, closing the second control valve, filling the test pipeline and the tested piece with liquid, closing the first control valve, forming a closed pipeline space by the test pipeline, clockwise rotating the pressure regulating piston cylinder, reducing the inner volume of the test pipeline, compressing the liquid to increase the pressure, and regulating the static pressure under medium-pressure and high-pressure working conditions;
the first control valve is closed, the second control valve is opened, bubbles are contained in the closed pipeline space due to the fact that the air cavity is filled with air, the pressure regulating piston cylinder is rotated clockwise, pressure is slowly increased due to air compression, the pressure regulating resolution is greatly improved, and the pressure regulating piston cylinder is suitable for static pressure regulation under micro-pressure and low-pressure working conditions;
closing the first control valve, opening the second control valve, rotating the pressure regulating piston cylinder anticlockwise when the closed pipeline space contains bubbles due to the fact that the air cavity is filled with air, increasing the inner volume of the test pipeline at the moment, enabling the pressure in the pipeline to be negative due to the expansion of the volume of the air, and enabling the pressure to be suitable for static pressure regulation under the negative pressure working condition at the moment;
therefore, the wide static pressure regulating device can realize a large loading pressure range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of a pipeline connection of an embodiment of a wide static pressure regulating device provided by the present invention.
The embodiment of the utility model is illustrated by reference numerals:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Wide |
3 | Air cavity |
| 1 | |
4 | Second control valve |
| 11 | |
5 | Pressure regulating |
| 12 | Liquid inlet end | 6 | |
| 2 | First control valve |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a wide static pressure regulating device 100, which includes:
the device comprises a test pipeline 1, wherein one end of the test pipeline 1 is a test end 11, the test end 11 is used for connecting a tested piece, and the other end of the test pipeline 1 is a liquid inlet end 12 for inputting liquid into the test pipeline 1;
the first control valve 2 is arranged on the test pipeline 1 and is adjacent to the liquid inlet end 12;
the air assembly comprises an air cavity 3 and a second control valve 4, one end of the air cavity 3 is connected with a position between the first control valve 2 and the testing end 11 on the testing pipeline 1, and the second control valve 4 is connected between the air cavity 3 and the testing pipeline 1;
the pressure regulating piston cylinder 5 is connected to the position, between the first control valve 2 and the testing end 11, on the testing pipeline 1; and the number of the first and second groups,
and the pressure sensor 6 is used for detecting the pressure of the test pipeline 1.
The working process of the wide static pressure regulating device 100 provided by the utility model is as follows:
during testing, a tested piece is connected to the testing end 11 of the testing pipeline 1, the tested piece and the testing pipeline 1 form a closed cavity filled with liquid, the air cavity 3 is of a hollow structure, the interior of the air cavity is filled with air, and the air cavity is isolated by the second control valve 4;
installing a tested piece, closing a second control valve 4, filling the test pipeline 1 and the tested piece with liquid, closing a first control valve 2, forming a closed pipeline space by the test pipeline 1, rotating a pressure regulating piston cylinder 5 clockwise, reducing the volume in the test pipeline 1, compressing the liquid to increase the pressure, and regulating the static pressure under medium-pressure and high-pressure working conditions;
the first control valve 2 is closed, the second control valve 4 is opened, bubbles are contained in the closed pipeline space due to the fact that the air cavity 3 is filled with air at the moment, the pressure regulating piston cylinder 5 is rotated clockwise, pressure is slowly increased due to air compression, the pressure regulating resolution is greatly improved, and the static pressure regulating piston cylinder is suitable for static pressure regulation under the working conditions of micro pressure and low pressure at the moment;
closing the first control valve 2, opening the second control valve 4, rotating the pressure regulating piston cylinder 5 anticlockwise due to the fact that air bubbles are contained in the closed pipeline space because the air cavity 3 is filled with air, increasing the volume in the test pipeline 1, enabling the pressure in the pipeline to be negative due to expansion of the volume of the air, and enabling the pressure to be suitable for static pressure regulation under the negative pressure working condition;
after the test is finished, the tested piece is removed, the liquid entering the air cavity 3 can be released by opening the second control valve 4, and the air cavity is filled with air again.
Therefore, in the present invention, the wide static pressure regulating device 100 can realize a large loading pressure range.
In the present embodiment, the first control valve 2 is a high pressure switch needle valve. The first control valve 2 is a micro-pressure switch needle valve.
In one embodiment of the present invention, the air assemblies are provided in plurality, and the volumes of the air cavities 3 on the plurality of air assemblies are different. In yet another embodiment of the present invention, the volume of the air chamber 3 is adjustable, and specifically, the air chamber 3 includes a first chamber and a second chamber screwed with the first chamber, and one end of the second chamber is connected to the test pipeline 1. In this way, it is possible to achieve different volume sizes of the air chambers 3 connected into the test line 1.
Therefore, the first control valve 2 is closed, the second control valve 4 is opened, bubbles are contained in the closed pipeline space due to the fact that the air cavity 3 is filled with air at the moment, the pressure regulating piston cylinder 5 is rotated clockwise, pressure slowly rises due to air compression, pressure regulating resolution is greatly improved, static pressure regulation under micro-pressure and low-pressure working conditions is suitable, and the air cavity 3 with different volumes can adapt to regulating working conditions and regulating resolution of different micro-pressure and low-pressure regulating ranges according to measured conditions.
Close first control valve 2, open second control valve 4, closed pipeline space this moment contains the bubble because of being full of gas in the air cavity 3, anticlockwise rotation pressure regulating piston cylinder 5, the increase of volume in the test tube way 1 this moment, gas volume inflation makes pipeline internal pressure be the negative pressure, is fit for static pressure regulation under the negative pressure operating mode this moment, changes the air cavity 3 adaptable different negative pressure control range's of different volume regulation operating mode and control resolution ratio according to the measured condition.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A wide static pressure regulator, comprising:
the device comprises a test pipeline, a liquid inlet pipeline and a liquid outlet pipeline, wherein one end of the test pipeline is a test end which is used for connecting a tested piece, and the other end of the test pipeline is a liquid inlet end which is used for inputting liquid into the test pipeline;
the first control valve is arranged on the testing pipeline and is adjacent to the liquid inlet end;
the air assembly comprises an air cavity and a second control valve, one end of the air cavity is connected with a position between the first control valve and the testing end on the testing pipeline, and the second control valve is connected between the air cavity and the testing pipeline;
the pressure regulating piston cylinder is connected to the position between the first control valve and the testing end on the testing pipeline; and the number of the first and second groups,
and the pressure sensor is used for detecting the pressure of the test pipeline.
2. The wide range static pressure regulating device of claim 1 wherein said first control valve is a high pressure on-off needle valve.
3. The wide range static pressure regulating device of claim 1 wherein said first control valve is a micro-pressure switch needle valve.
4. The wide static pressure regulating device according to claim 1, wherein the air assemblies are provided in plurality, and the volumes of the air chambers on the plurality of air assemblies are different.
5. The wide format static pressure regulating device of claim 1 wherein the volume of the air chamber is adjustably set.
6. The wide static pressure regulating device according to claim 5, wherein the air chamber comprises a first chamber and a second chamber in threaded sleeve connection with the first chamber, and one end of the second chamber is connected with the test pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120464645.6U CN215323334U (en) | 2021-03-03 | 2021-03-03 | Wide static pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120464645.6U CN215323334U (en) | 2021-03-03 | 2021-03-03 | Wide static pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215323334U true CN215323334U (en) | 2021-12-28 |
Family
ID=79582734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120464645.6U Active CN215323334U (en) | 2021-03-03 | 2021-03-03 | Wide static pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215323334U (en) |
-
2021
- 2021-03-03 CN CN202120464645.6U patent/CN215323334U/en active Active
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