A special hydraulic station for functional testing of hydraulic reversing valve and its testing method

A technology for hydraulic reversing valve and function testing, which is used in mechanical valve testing, liquid/vacuum measurement for liquid tightness, valve device, etc. It can solve the problem that the hydraulic station cannot match the function test of the hydraulic reversing valve, etc. To achieve the effect of ensuring safety, ensuring cleanliness and ensuring stability

Active Publication Date: 2022-07-12
CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the oil return port of the existing hydraulic station cannot use back pressure to simulate the underwater environment, so common hydraulic stations on the market cannot be matched with hydraulic reversing valves for functional testing

Method used

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  • A special hydraulic station for functional testing of hydraulic reversing valve and its testing method
  • A special hydraulic station for functional testing of hydraulic reversing valve and its testing method
  • A special hydraulic station for functional testing of hydraulic reversing valve and its testing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] like figure 1 As shown, the present embodiment provides a special hydraulic station for the function test of the hydraulic reversing valve, which is especially suitable for an experimental device in which the back pressure of the oil return port simulates the underwater pressure environment and simultaneously tests the valve position switching function. Specifically, it includes: an oil source control branch 1 on which an oil tank 11 and a pneumatic pump 13 are arranged, and the output ends of the oil source control branch 1 are respectively connected to the inputs of the downstream pressure control branch 2 and the safety control branch 3 The output end of the downstream pressure control branch 2 is connected to the input end of the first hydraulic reversing valve test branch 4 and the second hydraulic reversing valve test branch 5, and the output end of the safety control branch 3 is connected to the total oil return branch The input end of the circuit 8, the output e...

Embodiment 2

[0068] Based on the special hydraulic station for the function test of the hydraulic reversing valve provided in Embodiment 1, the present embodiment provides a method for testing the function of the hydraulic reversing valve, which includes the following steps:

[0069] 1) Control and adjust the air source control branch, oil source control branch and downstream pressure control branch respectively to meet the internal pressure requirements of the underwater hydraulic reversing valve during operation or testing.

[0070] Specifically, open the air source stop valve on the air source control branch, so that the driving air source opens the pneumatic pump in the oil source control branch through the air source element; the pneumatic pump sends the hydraulic oil in the oil tank to the downstream pressure control branch; Observe the indication of the pressure gauge, and adjust the pressure reducing valve in the downstream pressure control branch to make the pressure in the pipelin...

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PUM

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Abstract

The invention relates to a special hydraulic station for testing the function of a hydraulic reversing valve and a testing method thereof, comprising: an oil source control branch, on which an oil tank and a pneumatic pump are arranged, and the output ends of the oil source control branch are respectively connected to downstream pressure control The input ends of the branch circuit and the safety control branch circuit; the output ends of the downstream pressure control branch circuit and the safety control branch circuit are respectively connected to the input ends of the hydraulic reversing valve test branch circuit and the total oil return branch circuit, and the output of the total oil return branch circuit The output end of the hydraulic reversing valve test branch is connected to the pilot valve and the main valve of the hydraulic reversing valve to be tested, and the pilot valve of the hydraulic reversing valve to be tested and the oil return port of the main valve are both After testing, the oil return branch is connected to the input end of the total oil return branch to form a circulation system; it also includes an air source control branch, the input end of the air source control branch is connected to the driving air source, and the output end is connected to the pneumatic pump. Used to ensure the normal operation of the air pump. The invention can be widely used in the field of underwater production control.

Description

technical field [0001] The invention relates to a special hydraulic station with a back pressure simulation function for functional testing of a hydraulic reversing valve and a testing method thereof, belonging to the field of underwater production control. Background technique [0002] The underwater hydraulic reversing valve is the core equipment of the underwater production control system. At present, the development and functional testing of the hydraulic reversing valve in China has been slow. (American Petroleum Institute, American Petroleum Institute Standard 17F, API 17F for short) requires functional testing. [0003] At present, the test of the underwater hydraulic reversing valve is in the final stage of testing. It is necessary to design a hydraulic station that matches the function of the underwater hydraulic reversing valve to ensure that the main valve and the pilot valve in the hydraulic reversing valve supply and return oil, and can carry out underwater oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02F15B1/02F15B21/041F15B21/048F16K31/36G01M3/02G01M13/003
CPCF15B13/02F15B1/02F15B21/041F15B21/048F16K31/36G01M3/02G01M13/003
Inventor 徐正海陈宏举安维峥马强吴露侯广信孙钦马麟
Owner CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD
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