Test device and test method for longitudinal air permeability performance of cable
A technology of test device and test method, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and can solve the problems of test device and test method that do not give performance detection
Inactive Publication Date: 2015-07-08
JIANGSU YUANYANG DONGZE CABLE
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Problems solved by technology
This requires corresponding test devices and test methods for testing, and the current relevant standards do not provide test devices and test methods for these performance tests
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[0011] The cable longitudinal airtight performance test device of the present invention comprises an air pressure test container 1 , an air pressure pump 3 and a water storage container 8 . The air pressure test container 1 is a closed cuboid structure, the top wall of the air pressure test container 1 is provided with an exhaust valve 2, and the center of one side of the air pressure test container 1 is provided with a cable sealing joint 1a, and one end of the cable 7 extends from the cable sealing joint. Into the air pressure test container 1, the outer end of the cable 7 is inserted in the water storage container 8 and is located below the water level line of the water storage container; The high-pressure air pipe 4 is connected to the high-pressure air pipe joint of the air pressure test container 1, and the air pressure control valve 5 is arranged on the high pressure air pipe 4 near the air pump 3, and the pressure gauge 6 is arranged near the air pressure test container...
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The invention relates to a test device and a test method for longitudinal air permeability performance of a cable. The test device is characterized in that an air pressure test container is of a sealed rectangular structure, the top wall of the air pressure test container is provided with an exhaust valve, the center of one side surface of the air pressure test container is provided with a cable sealing connector, one end of the cable stretches into the air pressure test container from the cable sealing connector, an outer end of the cable is inserted in a water storage container and is positioned under a water line of the water storage container, the front end surface of the air pressure test container is provided with a high-pressure air pipe connector, an outlet of an air pressure pump is connected with the high-pressure air pipe connector of the air pressure test container through a high-pressure air pipe, the position on the high-pressure air pipe close to the air pressure pump is provided with an air pressure control valve, and the position on the high-pressure air pipe close to the air pressure test container is provided with a pressure meter. The test method is characterized by opening the air pressure control valve after starting the air pressure pump, closing the air pressure control valve and keeping for a set time when the reading on the pressure meter reaches a set value, observing whether bubbles bubble at the outer end of the cable or not, and obtaining the displacement situation of each component of the cable relative to a protection sleeve. According to the test device and the test method, disclosed by the invention, the whole process is simple, convenient, fast, accurate and reliable.
Description
technical field [0001] The invention relates to a cable test device, in particular to a cable longitudinal airtight performance test device. The invention also relates to a method for testing the longitudinal airtight performance of cables. Background technique [0002] With the development of deep-sea energy exploitation and submerged ships, the supporting submerged cables are required to have longitudinal airtightness, longitudinal airtightness and longitudinal airtightness under high pressure. This requires corresponding test devices and test methods for testing, and the current relevant standards do not provide test devices and test methods for these performance tests. Contents of the invention [0003] The primary purpose of the present invention is to provide a cable longitudinal airtight performance test device, which can easily and quickly conduct longitudinal airtight performance tests on cables. [0004] In order to achieve the above purpose, a cable longitudin...
Claims
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IPC IPC(8): G01M3/02
Inventor 李永江陆云春
Owner JIANGSU YUANYANG DONGZE CABLE