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Special hydraulic station for function test of hydraulic reversing valve and test method thereof

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: 2022-05-24
CNOOC TIANJIN BRANCH +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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  • Special hydraulic station for function test of hydraulic reversing valve and test method thereof
  • Special hydraulic station for function test of hydraulic reversing valve and test method thereof
  • Special hydraulic station for function test of hydraulic reversing valve and test method thereof

Examples

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 dedicated 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 a 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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Abstract

The invention relates to a hydraulic station special for function testing of a hydraulic reversing valve and a testing method thereof, and the hydraulic station comprises an oil source control branch which is provided with an oil tank and a pneumatic pump, and the output end of the oil source control branch is connected with the input end of a downstream pressure control branch and the input end of a safety control branch; the output ends of the downstream pressure control branch and the safety control branch are respectively connected with the input ends of the hydraulic reversing valve test branch and the main oil return branch, and the output end of the main oil return branch is connected with the input port of the oil tank; the output end of the hydraulic reversing valve test branch is respectively connected with a pilot valve and a main valve of the hydraulic reversing valve to be tested, and oil return ports of the pilot valve and the main valve of the hydraulic reversing valve to be tested are connected with the input end of the main oil return branch through the test oil return branch to form a circulating system; the input end of the air source control branch is connected with the driving air source, the output end of the air source control branch is connected with the pneumatic pump, and the air source control branch is used for guaranteeing normal operation of the pneumatic pump. The method can be widely applied to 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 test stage. 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 operation....

Claims

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Application Information

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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 CNOOC TIANJIN BRANCH