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CN-121994420-A - Ship sealing door internal and external pressure testing system

CN121994420ACN 121994420 ACN121994420 ACN 121994420ACN-121994420-A

Abstract

The invention discloses an internal and external pressure testing system for a ship sealing door, which belongs to the technical field of sealing door testing and comprises a detection base used for testing the sealing door to be tested, wherein a liquid pressurizing module is arranged in the detection base, and a testing assembly consisting of a testing cabin, a cabin cover, an installation partition board, a permeation assembly and an air pressure testing assembly is arranged on the detection base. According to the invention, through the synergistic effect of the permeation tube, the annular cold guide plate and the thermoelectric refrigerating sheet, liquid can be conveyed to a gap of the sealing door to be detected and can be quickly frozen, the phenomenon of micro ice seepage damage is actively manufactured, the simulation of the water seepage freezing working condition of the sealing door of the ship under the polar environment is realized, the simulation is cooperated with an air pressure testing pipeline capable of flexibly switching the mixed air of pure nitrogen and helium and nitrogen by an electric control three-way valve through arranging an independent testing cavity and a lower testing cavity, and in one-time clamping, the detection of two working conditions of the leakage from the inside of the door to the outside of the ship and the pressure from the outside of the ship to the ship can be respectively completed through changing the air medium and the pressure of the cavities at two sides.

Inventors

  • GAN XIAOHUA
  • WANG KUN

Assignees

  • 南京晶云船舶配件有限公司

Dates

Publication Date
20260508
Application Date
20260312

Claims (9)

  1. 1. The utility model provides a ship sealing door internal and external pressure test system, includes detection base (1) that is used for carrying out the test to the sealing door that awaits measuring (23), its characterized in that, be equipped with liquid pressurization module (2) in detection base (1), be equipped with test assembly on detection base (1), test assembly includes test bin (3), the top of test bin (3) is equipped with the hatch cover, test bin (3) inside is equipped with installation baffle (4), the through-hole has been seted up to installation baffle (4) inboard, the through-hole inside wall is equipped with infiltration subassembly, installation baffle (4) top constitutes upper test chamber (301), installation baffle (4) below constitutes lower test chamber (302), the lateral wall of upper test chamber (301) and lower test chamber (302) all is equipped with atmospheric pressure test assembly; The infiltration assembly comprises a door body installation frame (5), a sealing door (23) to be measured is placed on the upper surface of the door body installation frame (5), a liquid infiltration channel (6) is arranged inside the door body installation frame (5), an installation groove (501) is formed in the surface of the door body installation frame (5), an annular cold guide plate (7) is installed in the installation groove (501), a plurality of thermoelectric cooling plates (8) are arranged at the bottom of the annular cold guide plate (7), and distributed temperature sensors (9) installed on the door body installation frame (5) are arranged among the thermoelectric cooling plates (8); the air pressure testing assembly comprises two premixed trace gas storage tanks (10) and two air pressure testing pipelines, wherein the premixed trace gas storage tanks (10) and the two air pressure testing pipelines are arranged in the detection base (1), the two air pressure testing pipelines are respectively communicated with the upper testing cavity (301) and the lower testing cavity (302), and the air pressure testing pipelines comprise an air inlet pipe (11) and an air outlet pipe (12).
  2. 2. The ship sealing door internal and external pressure testing system according to claim 1, wherein one end of the liquid permeation channel (6) facing the air pressure testing pipeline is provided with a water inlet pipe (13) communicated with the liquid pressurizing module (2) and a water outlet pipe (14) communicated with an external waste liquid pool, and one side of the liquid permeation channel (6) facing the sealing door (23) to be tested is provided with a plurality of permeation pipes (15).
  3. 3. A ship seal door internal and external pressure testing system according to claim 2, characterized in that the output end of the permeate tube (15) is aligned with the slit of the sealing gasket in the seal door (23) to be tested.
  4. 4. The ship sealing door internal and external pressure testing system according to claim 1, wherein the input end of the air inlet pipe (11) is provided with a metering valve (16) and an electric control three-way valve (17) in sequence towards the outer side, two input ends of the electric control three-way valve (17) are respectively connected with a pure nitrogen input pipe (18) and a premixed gas input pipe (19), the pure nitrogen input pipe (18) is communicated with an external nitrogen source, and the premixed gas input pipe (19) is communicated with the output end of the premixed trace gas storage tank (10).
  5. 5. The ship sealing door internal and external pressure testing system according to claim 1, wherein an output end of the air outlet pipe (12) is sequentially provided with an electric control single-pass valve and a detection exhaust pipe (20), and the detection exhaust pipe (20) is communicated with an input end of an external helium mass spectrometer.
  6. 6. The ship sealing door internal and external pressure testing system according to claim 1, wherein a plurality of heat dissipation substrates (21) matched with thermoelectric cooling fins (8) are installed at the bottom in the installation groove (501), and heat dissipation fins are arranged below the heat dissipation substrates (21) and located in the lower testing cavity (302).
  7. 7. The ship sealing door internal and external pressure testing system according to claim 6, wherein the size of the annular cold guide plate (7) is matched with that of the sealing gasket, and a heat insulation cushion layer (22) is arranged between the bottom surface of the annular cold guide plate (7) and the upper surface of the mounting groove (501).
  8. 8. The ship sealing door internal and external pressure testing system according to claim 7, wherein a plurality of thermoelectric cooling fins (8) are uniformly arranged in an array form and are arranged at the bottom of the mounting groove (501), the cold ends of the thermoelectric cooling fins (8) are tightly attached to the annular cold guide plate (7), and the hot ends of the thermoelectric cooling fins (8) are tightly attached to the heat dissipation substrate (21).
  9. 9. The ship seal door internal and external pressure test system according to claim 1, wherein the gas filled in the premixed trace gas storage tank (10) is a premixed gas of helium and nitrogen, and the volume concentration of the helium is 20%.

Description

Ship sealing door internal and external pressure testing system Technical Field The invention relates to the technical field of sealing door testing, in particular to a ship sealing door internal and external pressure testing system. Background The ship sealing door is a facility for guaranteeing the water tightness and cabin safety of the ship, and for the ship sailing in polar regions, the sealing door is required to bear the conventional wind and wave pressure, and is more challenged by extremely severe environments such as low temperature, sea water spray leakage, instant freezing and the like, the formation and expansion of an ice layer in a sealing gap are one of the main hidden troubles of sealing failure and leakage initiation, and the prior art adopts a differential pressure method or trace gas to detect microscopic leakage for the air tightness test of the ship sealing door; However, when the existing test system performs watertight test, the extremely specific trace seawater infiltration and rapid freezing progressive damage process cannot be actively simulated at the sealing contact interface, so that the microcosmic action mechanism of ice damage on the sealing material and the long-term influence of ice damage on the sealing performance are difficult to study; meanwhile, the existing airtight test system is single in function, most of the airtight test system can only perform one-way pressurization test, and a test method for the bidirectional sealing performance of the inner side leakage prevention and the outer side compression resistance of the sealing door is lacked; therefore, a ship sealing door internal and external pressure testing system is provided to solve the problems. Disclosure of Invention The invention aims to solve the problems that in the prior art, a sealing failure mechanism of a sealing door test is difficult to recover in a polar environment and the bidirectional sealing performance cannot be independently tested, and provides a ship sealing door internal and external pressure testing system. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a ship sealing door internal and external pressure test system, includes the detection base that is used for testing to the sealing door that awaits measuring, be equipped with the liquid pressurization module in the detection base, be equipped with the test assembly on the detection base, the test assembly includes the test storehouse, the top of test storehouse is equipped with the cabin cover, the inside installation baffle that is equipped with of test storehouse, the installation baffle inboard is equipped with the through-hole, the through-hole inside wall is equipped with the infiltration subassembly, constitute the upper test chamber above the installation baffle, constitute down the test chamber below the installation baffle, the lateral wall of upper test chamber and lower test chamber all is equipped with atmospheric pressure test assembly; The infiltration assembly comprises a door body installation frame, a sealing door to be measured is placed on the upper surface of the door body installation frame, a liquid infiltration channel is arranged in the door body installation frame, an installation groove is formed in the surface of the door body installation frame, an annular cold guide plate is installed in the installation groove, a plurality of thermoelectric cooling plates are arranged at the bottom of the annular cold guide plate, and a distributed temperature sensor installed on the door body installation frame is arranged among the thermoelectric cooling plates; The air pressure testing assembly comprises two premixed trace gas storage tanks and two air pressure testing pipelines, wherein the premixed trace gas storage tanks and the two air pressure testing pipelines are arranged in the detection base, the two air pressure testing pipelines are respectively communicated with the upper testing cavity and the lower testing cavity, and the air pressure testing pipelines comprise an air inlet pipe and an air outlet pipe. Preferably, one end of the liquid permeation channel facing the air pressure test pipeline is provided with a water inlet pipe communicated with the liquid pressurizing module and a water outlet pipe communicated with an external waste liquid pool, and one side of the liquid permeation channel facing the sealing door to be tested is provided with a plurality of permeation pipes. Preferably, the output end of the permeate tube is aligned with the slit of the sealing gasket in the sealing door to be tested. Preferably, the input end of the air inlet pipe is provided with a metering valve and an electric control three-way valve in sequence towards the outer side, two input ends of the electric control three-way valve are respectively connected with a pure nitrogen input pipe and a premixed gas input pipe, the pure nitrogen input pip