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CN-224216262-U - Watertight cable detects with open end hydrostatic test device

CN224216262UCN 224216262 UCN224216262 UCN 224216262UCN-224216262-U

Abstract

The utility model discloses an open-end hydraulic test device for watertight cable detection, which comprises a pressure source, a sealing test cavity, a control system and a data acquisition module, wherein a recovery disc at the top of the sealing cavity can collect water carried out in the exhaust process and guide the water into a water tank for recycling, so that water resource consumption is reduced, a filtering component continuously purifies a circulating medium, the pollution risk to the environment is reduced, the device conforms to the green manufacturing concept, the whole device adopts a modularized design, the layout of each functional component is reasonable, the occupied area is small, the control system is integrated in a PLC or a microprocessor, an operation interface is concise, the functions of one-key starting, automatic pressure maintaining, pressure releasing and the like are supported, and the labor intensity of operators is remarkably reduced.

Inventors

  • CHENG LI
  • LUO WENJUN

Assignees

  • 北京海思智源科技有限公司

Dates

Publication Date
20260508
Application Date
20250716

Claims (10)

  1. 1. The open-end hydraulic test device for watertight cable detection comprises a pressure source (1), a sealing test cavity (2), a control system (3) and a data acquisition module (4), and is characterized in that the pressure source (1) is connected to the sealing test cavity (2) and is used for applying water pressure to the test cavity, the sealing test cavity (2) is provided with a cable inlet (201) and is used for fixing the open end of a cable (5), the control system (3) is connected with the pressure source (1) and the data acquisition module (4) and is used for controlling the pressure to apply and record test data, a drain pipe (6) is arranged at the bottom of the sealing test cavity (2), a drain valve (601) is arranged on the drain pipe (6) and a filter assembly (8) is arranged between the drain pipe and the water tank (7), and the filter assembly (8) comprises a filter cartridge (802), a rotating shaft, arc-shaped blades, a cleaning scraper and a filter screen (806) and is used for filtering impurities in a circulating medium.
  2. 2. The device according to claim 1, characterized in that the sealing test chamber (2) is made of a corrosion-resistant material, an adjustable sealing assembly (9) is arranged at the cable inlet (201), the sealing assembly (9) comprises a conical sealing plug (901) and a rubber plug (902), and sealing fixation of cables (5) with different specifications is realized by extruding nuts.
  3. 3. The device according to claim 1, wherein the pressure source (1) is a hydraulic pump or a pneumatic pump and is connected with the sealing test cavity (2) through a water inlet pipe (10), and the water inlet pipe (10) is provided with a water inlet stop valve (1001) and a one-way valve (1002) in sequence for controlling the water flow direction and the pressure.
  4. 4. The device according to claim 1, wherein the data acquisition module (4) comprises a pressure sensor (401) and a temperature sensor (402), monitors pressure and temperature data in the sealed test chamber (2) in real time, and transmits the data to a remote upper computer through a communication interface.
  5. 5. The device according to claim 1, characterized in that the control system (3) is a Programmable Logic Controller (PLC) or a microprocessor, preset with a pressure threshold, and when a pressure anomaly is detected, an audible and visual alarm is issued by means of an alarm module (12).
  6. 6. The device according to claim 1, characterized in that an inner partition plate and a water filtering plate (808) are arranged inside the filter cartridge (802) of the filter assembly (8), a blanking cavity is formed between the inner partition plate and the inner wall of the filter cartridge (802), and the cleaning scraping plate is attached to the surface of the filter screen (806) and used for scraping impurities and guiding the impurities into a collecting frame in the blanking cavity.
  7. 7. The device according to claim 1, characterized in that the top of the sealed test chamber (2) is provided with an exhaust valve (13) and a recovery disc (14), the recovery disc (14) is communicated with the water tank (7) and is used for collecting and recycling moisture carried out in the exhaust process.
  8. 8. The device according to claim 1, further comprising an insulation resistance tester connected to the core wire of the cable (5) for detecting in real time the electrical performance of the cable under water pressure and storing the test results to the data storage module (16).
  9. 9. The device according to claim 1, characterized in that the outside of the sealed test chamber (2) is provided with a slip detection mechanism (17) comprising a detection shutter (1701) and a displacement detector (1702) for monitoring the axial displacement of the cable (5) under pressure.
  10. 10. The device according to claim 1, characterized in that a proportional relief valve (18) and a pressure sensor (401) are arranged between the pressure source (1) and the sealing test chamber (2), and precise regulation and stable maintenance of the water pressure is achieved by closed-loop control.

Description

Watertight cable detects with open end hydrostatic test device Technical Field The utility model relates to the technical field of cables, in particular to an open-end hydrostatic test device for watertight cable detection. Background In the field of cable water tightness detection, the traditional open-end hydrostatic test device has the following technical bottlenecks: 1. The existing device adopts a sealing structure with fixed specification, is difficult to rapidly adapt to cables with different diameters or cross-sectional shapes, and needs to frequently replace a die or realize sealing through complex processes such as glue injection, heat shrinkage and the like, so that the operation is complex and the efficiency is low. 2. Part of the devices rely on a gas cylinder or an air compressor to directly supply gas, the pressure fluctuation is large, the high-pressure environment such as deep sea cannot be stably simulated, and a closed loop feedback regulation mechanism is lacked, so that test data deviation is easy to cause. 3. The drainage system is not provided with an effective filtering component, impurities in the circulating water are easy to block a pipeline or a valve, the testing stability is affected, and meanwhile, the water carried out in the exhaust process is not recovered, so that the resource waste is caused. 4. The traditional device can only monitor pressure parameters, lacks the real-time detection of key indexes such as cable electrical performance (such as insulation resistance), axial displacement and the like, and cannot comprehensively evaluate the comprehensive reliability of the cable under water pressure. 5. Part of the devices are not provided with pressure relief valves or displacement monitoring mechanisms, explosion risks can be possibly caused when the pressure is abnormal, and the axial sliding of the cable under high pressure cannot be early-warned in time, so that the testing safety is affected. Disclosure of utility model In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide an open-end hydrostatic test device for watertight cable detection. One of the purposes of the utility model is realized by adopting the following technical scheme: The open end hydraulic test device for watertight cable detection comprises a pressure source, a sealing test cavity, a control system and a data acquisition module, wherein the pressure source is connected to the sealing test cavity and used for applying water pressure into the test cavity, the sealing test cavity is provided with a cable inlet and used for fixing the open end of a cable, the control system is connected with the pressure source and the data acquisition module and used for controlling pressure application and recording test data, a drain pipe is arranged at the bottom of the sealing test cavity, a drain valve is arranged on the drain pipe, and a filter assembly is arranged between the drain pipe and a water tank and comprises a filter cartridge, a rotating shaft, arc-shaped blades, a cleaning scraper and a filter screen and is used for filtering impurities in a circulating medium. Further, the seal test cavity is made of corrosion-resistant materials, an adjustable seal assembly is arranged at the cable inlet, the seal assembly comprises a conical sealing plug and a rubber plug, and sealing fixation of cables with different specifications is achieved through extrusion nuts. Further, the pressure source is a hydraulic pump or a pneumatic pump and is connected with the sealing test cavity through a water inlet pipe, and a water inlet stop valve and a one-way valve are sequentially arranged on the water inlet pipe and used for controlling the water flow direction and the pressure. Further, the data acquisition module comprises a pressure sensor and a temperature sensor, monitors pressure and temperature data in the sealing test cavity in real time, and transmits the data to a remote upper computer through a communication interface. Further, the control system is a Programmable Logic Controller (PLC) or a microprocessor, a pressure threshold value is preset, and when the pressure abnormality is detected, an audible and visual alarm is sent out through the alarm module. Further, filter cartridge inside of filter assembly is equipped with interior baffle and drainage board, form the blanking chamber between interior baffle and the cartridge filter inner wall, clearance scraper blade laminating filter screen surface for strike off impurity and guide to the collection frame in the blanking intracavity. Further, the top of the sealing test cavity is provided with an exhaust valve and a recovery disc, and the recovery disc is communicated with the water tank and is used for collecting water carried out in the exhaust process and recycling the water. Further, the cable is characterized by further comprising an insulation resistance tester, wherein the insulation resistance tester