Structure for sealing condenser and internal bladder of heat pump water heater

Abstract

The utility model relates to a sealing structure of a condenser and an inner tank of a heat pump water heater, which belongs to the technical field of heating devices. It includes an inner tank, a condenser accommodated in the cavity of the inner tank, and a tight fitting for sealing and fixing a pair of inlet and outlet pipe ends of the condenser on the condenser inlet and outlet tube holes preset on the inner tank. Firmware, characterized in that: a pair of inlet and outlet pipe ends of the condenser are respectively provided with a connecting part for connecting the fastener, and the connecting part is located in the cavity where the inlet and outlet pipe ends are located in the inner container On the position, the sealing ring is placed on the corresponding part. Advantages: The outer fasteners and the inner fittings cooperate to realize the sealing and fixing of the inlet and outlet pipe ends at the inlet and outlet pipe holes of the condenser; it can completely avoid the occurrence of leakage; it can effectively prevent the collapse of teeth Damage to the inlet and outlet pipe ends of the condenser occurs.

Description

technical field [0001] The invention relates to a sealing structure of a condenser and an inner container of a heat pump water heater, and belongs to the technical field of heating devices. Background technique [0002] Heat pump water heater is no longer unfamiliar to people. It is an energy-saving technology that uses the heat exchange principle of air conditioners to obtain heat energy. Specifically, it is composed of a compressor, a condenser, a throttle valve, and an evaporator connected in sequence through a conduit. Its working principle is: the refrigerant comes out of the compressor to form a high-temperature and high-pressure gas, which is introduced into the water heater (heat pump water heater) by the conduit. ) the condenser in the water storage tank (liner); after heat exchange between the condenser and the water in the water heater storage tank, the high-temperature and high-pressure gas becomes a low-temperature and high-pressure liquid; , that is, it become...

AI Technical Summary

Problems solved by technology

After the applicant explored, it was found that the reason for the leakage was that a pair of nuts did not have a good positioning effect on the pair of tube ends of the condenser, that is to say, the tube ends of the condenser could not be clamped on the inner tank to form an excellent clamping effect. The positioning effect, coupled with the unsatisfactory mating resistance of the screw teeth processed at the end of a pair of tubes of the condenser whose wall thickness is objectively limited, and used to be screwed with the nuts used as fasteners, it is difficult to Withstand the direct mating strength with the nut, and the sealing ring is located outside the inner tank, directly contacting the nut, and the sealing ring is clamped on the outer wall of the inner tank by the tightening force of the nut, resulting in three situations, One is that if the nut cannot be fully screwed in place, the tightness of the sealing ring will be poor and the sealing effect will not be achieved; the other is that if the nut is tightened too much, the thread on the tube end of the condenser will be damaged. The third is that the sealing ring is placed outside the inner tank, which belongs to the passive sealing of subsequent settings, and it is difficult to achieve a positive sealing effect; the above reasons have always plagued the manufacturers of heat pump water heaters, although the industry is committed to finding solutions. Ways and countermeasures, but so far no related reports or successful cases have been heard

Images