Sealing structure
A technology of sealing structure and sealing ring, which is applied in the direction of pipes, pipes/pipe joints/fittings, mechanical equipment, etc. It can solve the problems of reduced corrosion resistance of steel metallographic structure, difficult maintenance and replacement of water tank equipment, and shortened service life of water tanks. , to achieve the effects of prolonging the service life, easy inspection and maintenance, and convenient implementation
Inactive Publication Date: 2015-05-13
JIANGMEN JUNSHENG IND
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Problems solved by technology
[0002] At present, the service life of the heat pump water heater is directly related to the water tank. In addition to being related to the water quality, the service life of the water tank is also directly related to the connection method between the external equipment and the water tank; all sealed water tanks require water inlets, outlets, and instrument installation ports. etc. The equipment installed on these openings are generally directly welded to the tank body. The tank body will be affected by high temperature during the welding process, and the metallographic structure of the steel near the weld will change and the corrosion resistance will decrease. Therefore, The welded seam is easily corroded by water than other parts, which shortens the service life of the water tank; in addition, the equipment welded on the water tank is not easy to repair and replace, and in some environments, it is not easy to implement the electric welding process
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[0014] Such as Figure 1-Figure 2 The sealing structure shown is suitable for sealing the interface between the water tank 1 of the heat pump water heater and the external equipment.
[0015] The sealing structure includes a conduit 2 and a connecting part. The cylindrical conduit 2 is arranged in the installation hole of the water tank 1 to communicate the inner cavity of the water tank 1 with the outside; the connecting part includes an external thread part 3, a nut 4, a sealing ring 5, a compression The end cap 6 and the compression nut 7; on the conduit 2, the external thread part 3, the sealing ring 5, the compression end cap 6 and the compression nut 7 are sequentially set from the inside of the water tank 1 to the outside, and the cylindrical external thread part 3 is set In the installation hole, one end inside the water tank 1 is provided with a protrusion 31, and the other end is located outside the water tank 1. The protrusion 31 and the nut 4 provided on the extern...
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The invention discloses a sealing structure. The sealing structure comprises a guide tube and a connecting component. The cylindrical guide tube is arranged in a mounting hole of a water tank, so that an inner cavity of the water tank is communicated with the outside. The connecting component comprises an external thread part, a nut, a seal ring, a compression end cover and a compression nut. The guide tube is sleeved with the external thread part, the seal ring, the compression end cover and the compression nut sequentially from the interior of the water tank to the outside. The cylindrical external thread part is arranged in the mounting hole, the end, located in the water tank, of the external thread part is provided with a protrusion, and the other end of the external thread part is located outside the water tank. The two sides of the cylindrical wall of the water tank are clamped by the protrusion and the nut arranged on the external thread part. The cylindrical compression nut is in threaded connection with the external thread part and enables the compression end cover, the seal ring and the external thread part to be connected in an abutting mode. The compression end cover is fixedly arranged on the guide tube, and the compression cover and the outer circle of the guide tube are sealed. The sealing structure has the advantages of being simple in mounting technology, convenient to inspect and maintain, capable of prolonging the service life of the water tank and the like.
Description
technical field [0001] The invention relates to a sealing structure, in particular to a sealing structure for a water tank of a heat pump water heater. Background technique [0002] At present, the service life of the heat pump water heater is directly related to the water tank. In addition to being related to the water quality, the service life of the water tank is also directly related to the connection method between the external equipment and the water tank; all sealed water tanks require water inlets, outlets, and instrument installation ports. etc. The equipment installed on these openings are generally directly welded to the tank body. The tank body will be affected by high temperature during the welding process, and the metallographic structure of the steel near the weld will change and the corrosion resistance will decrease. Therefore, The welding seam is easily corroded by water than other parts, which shortens the service life of the water tank; in addition, the e...
Claims
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IPC IPC(8): F16L5/06
CPCF16L5/06
Inventor 江友飞
Owner JIANGMEN JUNSHENG IND