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CN-224216234-U - Leakage detection device for low-temperature pump pipe body

CN224216234UCN 224216234 UCN224216234 UCN 224216234UCN-224216234-U

Abstract

The utility model relates to the technical field of pipe detection, in particular to a leakage detection device for a low-temperature pump pipe, which comprises a shell, wherein a pressurizing assembly is arranged on one side of the shell, two connecting shells are arranged on one side of the shell, connecting plates are arranged on the two connecting shells, connecting pipes are arranged on the two connecting plates through sealing bearings, external threads are arranged on the outer sides of one ends of the two connecting pipes, a pipe assembly is fixed between the two connecting pipes, a placement box is arranged on one side of the shell, vertical projections of the two connecting shells are positioned in the placement box, and the pipe assembly is positioned in the placement box. The device extrudes the inside air of casing through the pressurization subassembly after for the pressure of body subassembly department can rise, and when body subassembly had the gas leakage, the gaseous outside the body subassembly can get into and place inside the box, makes place can produce a plurality of bubbles etc. above the inside soapy water of box, thereby can judge fast that body subassembly has the condition of gas leakage.

Inventors

  • SUN WENJUN
  • LI LIANG
  • LUO HUAILIANG
  • FAN BO
  • LIU DONGSHENG

Assignees

  • 宁夏天利丰能源利用有限公司

Dates

Publication Date
20260508
Application Date
20250623

Claims (7)

  1. 1. The utility model provides a low temperature pump body detection device that leaks, includes casing (1), its characterized in that, casing (1) one side is provided with the pressurization subassembly, casing (1) one side is provided with two coupling shells (2), two all be provided with connecting plate (3) on coupling shells (2), two all be provided with connecting pipe (4) through sealed bearing on connecting plate (3), two connecting pipe (4) one end outside all is provided with external screw thread (5), casing (1) one side is provided with places box (7).
  2. 2. The leakage detection device for the cryopump tube body according to claim 1, wherein one side of the placement box (7) is inclined, and the top edge of the placement box (7) is opened in an arc shape.
  3. 3. The leakage detection device for the low-temperature pump pipe body according to claim 1, wherein limiting blocks (8) are arranged on the outer sides of the two connecting pipes (4), and a gap exists between each limiting block (8) on the two connecting pipes (4) and the external thread (5).
  4. 4. A cryopump tube leakage detection apparatus according to any one of claims 1 to 3, wherein one end of each of the two connecting tubes (4) is provided with a placement groove (9), and a sealing ring (10) is provided in each of the placement grooves (9).
  5. 5. The cryopump tube leakage detection apparatus according to claim 1, wherein the pressurizing assembly includes a piston plate (12) slidably disposed in the housing (1), a telescopic assembly (13) is disposed on one side of the piston plate (12), a fixing plate (14) is disposed on one side of the telescopic assembly (13), and the fixing plate (14) is fixed in the housing (1).
  6. 6. The cryopump tube leakage detection apparatus according to claim 5, wherein the inner wall of the housing (1) is provided with a wear resistant coating.
  7. 7. The cryopump tube leakage detection apparatus according to claim 1, wherein the placement box (7) bottom is arranged in alignment with the housing (1) bottom.

Description

Leakage detection device for low-temperature pump pipe body Technical Field The utility model relates to the technical field of pipe detection, in particular to a leakage detection device for a low-temperature pump pipe. Background The current operation method for detecting leakage of the connecting pipe body of the cryogenic pump is to use a filling leakage detection method, namely, after the cryogenic pump is stopped, the connecting pipe body is disassembled, then water is injected into the connecting pipe body until the pipe opening is full of water, and after standing for a period of time, the water level in which pipe body is checked to be reduced, so that which pipe body is leaked is judged. Because the pipe body of the low-temperature pump needs to be replaced after being damaged, the replaced pipe body also needs to be detected, the efficiency is low by adopting a water filling mode, and the leakage part can be found only after long-time standing (at least 30min starting), so that the quick maintenance of the pipe body of the low-temperature pump is not facilitated. Disclosure of utility model The utility model aims to solve the defects that a tube body of a low-temperature pump needs to be replaced after being damaged in the prior art, the efficiency of the replaced tube body is low by adopting a water filling mode, and a leakage part can be found after long-time standing. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a low temperature pump body detection device that leaks, includes the casing, casing one side is provided with the pressurization subassembly, casing one side is provided with two coupling shells, two all be provided with the connecting plate on the coupling shells, two all be provided with the connecting pipe through sealing bearing on the connecting plate, two the connecting pipe one end outside all is provided with the external screw thread, two be fixed with the body subassembly between the connecting pipe, casing one side is provided with places the box, two the vertical projection of coupling shells all is located places the box, the body subassembly is located places the box. Preferably, one side of the placement box is inclined, and the top edge of the placement box is provided with an arc shape. Preferably, two the connecting pipes are provided with limiting blocks on the outer sides, and spaces are reserved between the limiting blocks on the two connecting pipes and the external threads. Preferably, two connecting pipes one end all is provided with the standing groove, two all is provided with the sealing washer in the standing groove. Preferably, sealing gaskets are arranged at two ends of the pipe body assembly, and one sides of the two sealing gaskets are contacted with one sides of the two sealing rings. Preferably, the pressurizing assembly comprises a piston plate slidably arranged in the shell, a telescopic assembly is arranged on one side of the piston plate, a fixing plate is arranged on one side of the telescopic assembly, and the fixing plate is fixed in the shell. Preferably, the inner wall of the housing is provided with a wear-resistant coating. Preferably, the placement box bottom is arranged in alignment with the housing bottom. The leakage detection device for the low-temperature pump pipe body has the beneficial effects that after the leakage detection device for the low-temperature pump pipe body extrudes air in the shell through the pressurizing assembly, the pressure at the pipe body assembly can rise, when the pipe body assembly leaks air, the air outside the pipe body assembly can enter the placing box, so that a plurality of bubbles and the like can be generated on the soapy water in the placing box, and therefore, whether the pipe body assembly leaks air can be judged quickly, and the time for maintaining the pipe body of the low-temperature pump is shortened. Drawings Fig. 1 is a schematic structural diagram of a leakage detection device for a low-temperature pump tube body. Fig. 2 is a front view in cross section of a leakage detection device for a cryopump tube body according to the present utility model. Fig. 3 is a partial enlarged view of fig. 2 at a. Fig. 4 is a front view II of a cross-sectional view of a leakage detection device for a low-temperature pump tube body. Fig. 5 is a partial enlarged view of fig. 4 at B. In the figure, 1, a shell; 2, a connecting shell, 3, a connecting plate, 4, a connecting pipe, 5, external threads, 6, a pipe body component, 7, a placing box, 8, a limiting block, 9, a placing groove, 10, a sealing ring, 11, a sealing gasket, 12, a piston plate, 13, a telescopic component, 14 and a fixing plate. Detailed Description The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are onl