Copper-pipe-penetrated air pressure difference space sealing structure for haulage motor air conditioner
A technology of locomotive air conditioning and sealing structure, which is applied in the direction of pipes, mechanical equipment, railway car body parts, etc., can solve the problems of sticky putty, which has a great influence on viscosity and hardness, poor sealing, and easy flow of putty, so as to prevent sealing. bad effect
Inactive Publication Date: 2015-05-13
CRRC DALIAN INST CO LTD
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AI Technical Summary
Problems solved by technology
However, the ambient temperature has a great influence on the viscosity and hardness of the non-drying putty
When the temperature is low, the non-drying putty will harden and shrink, resulting in poor sealing and poor operability; when the temperature is high, the putty will easily become soft and flow, which will also cause poor sealing
Method used
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[0012] The present invention will be further described below in conjunction with accompanying drawing.
[0013] Such as figure 2 As shown, the present invention adopts a tightening part structure and is applied to the occasion where there is an air pressure difference when the copper pipe passes through. The material of the tightening part can be nylon or brass with nickel plating to ensure the reliability of the copper tube seal.
[0014] The structure of the present invention firstly opens holes of suitable specifications on the partition plate 6, and fixes the tightening member main body 7 to the partition plate 6 through the flat nut 5, so as to realize the sealing between the tightening member main body 7 and the partition plate 6;
[0015] The copper tube 2 passes through the middle of the main body 7 of the tightening part, and at the outer end of the tightening part, that is, on the side of the condensation chamber 22, a certain torque is applied to the tube nut 8 to ...
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The invention discloses a copper-pipe-penetrated air pressure difference space sealing structure for a haulage motor air conditioner. The two sides of a partition plate are an evaporation cavity and a condensation cavity respectively. A through hole is formed in the partition plate. A copper pipe penetrates through the partition plate through the through hole. The through hole in the partition plate is provided with a screwing piece main body. The copper pipe penetrates through the interior of the screwing piece main body. The portion, located on one side of the evaporation cavity, of the screwing piece main body is provided with a slab nut. The screwing piece main body and the partition plate are sealed through the slab nut. The portion, located on one side of the condensation cavity, of the screwing piece main body is provided with a pipe nut. A rubber ring is arranged on the inner side of the pipe nut to achieve sealing of the pipe nut and the copper pipe. By means of the copper-pipe-penetrated air pressure difference space sealing structure, the airtightness is more reliable, and the waterproof sealing and supporting and fastening functions can be achieved at the same time.
Description
technical field [0001] The invention relates to a sealing structure, belonging to a pipeline system sealing device for a locomotive air-conditioning unit. Background technique [0002] At present, most locomotive air-conditioning units are installed in the open air, and rainwater will fall into the outdoor condensation chamber of the air-conditioning unit. The indoor evaporation chamber and the outdoor condensation chamber are connected by high-pressure pipes and low-pressure pipes. [0003] When the air conditioning unit is in cooling or ventilating operation, the air pressure in the evaporating chamber will be lower than the atmospheric pressure in the condensing chamber, and it will be in a negative pressure vacuum state. Under the action of the air pressure difference between the two chambers, the rainwater will pass through the gaps around the copper pipe and be sucked into the indoor evaporation side from the outdoor condensation side, causing damage to the heat insula...
Claims
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Login to View More IPC IPC(8): F16L5/06
CPCF16L5/06B61D27/0018
Inventor 卢文军白刚鞠盈子
Owner CRRC DALIAN INST CO LTD