Heat exchange mechanism for air source heat pump hot water unit
Technical Field
The utility model relates to an air source heat pump hot water unit technical field specifically is a heat transfer mechanism for air source heat pump hot water unit.
Background
The air source heat pump hot water unit is one energy saving and environment protecting hot water supply device capable of replacing boiler and producing hot water of over 50 deg.c. The air source heat pump hot water unit is suitable for places needing hot water heat sources such as indoor swimming pools, hotels, villas, hair salons, bath pedicure, factories, farms and the like. The air source heat pump hot water unit can be used for refrigerating in the heating process, and can also be installed in places which need cold quantity but have low requirements.
The heat exchange mechanism that current air source heat pump hot water unit used only twines the copper pipe on the water tank surface simply, and heat exchange efficiency is not high, and when the copper pipe heat had not transmitted completely to the water tank absorption yet simultaneously, it was not few just to have dissipated, can't guarantee the heat transfer effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air source heat pump heat transfer mechanism for hot water unit through installing radiating fin on the heat exchange tube, corresponds on the water tank and sets up the heat conduction groove, has increased radiating fin and water tank outer wall's area of contact, has improved heat exchange efficiency, establishes the mineral wool layer through inlaying in the cage is inside again, has reduced the heat speed of scattering and disappearing, has further guaranteed the heat transfer effect to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an air source heat pump heat transfer mechanism for hot water unit, includes cage and water tank, the inside mineral wool layer that is equipped with that inlays of cage, bottom welding in the pillar in water tank bottom four corners and the cage, the water tank outer wall is around being equipped with the heat exchange tube, install radiating fin on the heat exchange tube, it is provided with the heat-conducting groove to correspond on the water tank, radiating fin is located the heat-conducting groove, the heat exchange tube water inlet runs through the cage lateral wall and communicates with the compressor exit end, the heat exchange tube exit end runs through the cage lateral wall and communicates with the expansion valve.
Preferably, four corners of the bottom of the isolation cover are welded with fixing plates through support legs, and threaded holes are formed in the fixing plates.
Preferably, the top end of the threaded hole is communicated with a circular groove, and the bottom of the circular groove is glued with an elastic rubber gasket.
Preferably, the top of the water tank is communicated with a water inlet pipe, and the bottom of the water tank is communicated with a water outlet pipe.
Preferably, the heat exchange tube is a copper tube.
Preferably, the outer wall of the heat exchange tube is sleeved with a fixing sleeve, and the fixing sleeve is welded on the outer wall of the water tank.
Compared with the prior art, the beneficial effects of the utility model are that:
the water tank outer wall is provided with the heat exchange tube in a winding manner, the heat radiating fins are installed on the heat exchange tube, the heat conducting grooves are correspondingly formed in the water tank, the heat radiating fins are located in the heat conducting grooves, the contact area between the heat radiating fins and the water tank outer wall is increased, the heat exchange efficiency is improved, the mineral wool layer is embedded in the isolation cover, the heat dissipation rate is reduced, and the heat exchange effect is further guaranteed.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the water tank of the present invention;
fig. 3 is a sectional view of the fixing plate of the present invention.
In the figure: 1. an isolation cover; 2. a water tank; 3. a pillar; 4. a heat exchange pipe; 5. a heat dissipating fin; 6. a heat conducting groove; 7. a layer of mineral wool; 8. a compressor; 9. an expansion valve; 10. a support leg; 11. a fixing plate; 12. a threaded hole; 13. a circular groove; 14. an elastic rubber gasket; 15. a water inlet pipe; 16. a water outlet pipe; 17. and (4) fixing sleeves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a heat exchange mechanism for an air source heat pump hot water unit comprises an isolation cover 1 and a water tank 2, wherein a mineral cotton layer 7 is embedded in the isolation cover 1 to reduce heat loss, four corners of the bottom of the isolation cover 1 are welded with fixing plates 11 through supporting legs 10, the fixing plates 11 are provided with threaded holes 12 which are convenient to fix, the top ends of the threaded holes 12 are communicated with a circular groove 13, the bottom of the circular groove 13 is glued with an elastic rubber gasket 14, the elastic rubber gasket 14 is arranged to enhance bolt tightening strength, supporting columns 3 at four corners of the bottom of the water tank 2 are welded with the bottom of the isolation cover 1, an inner container of the water tank 2 is made of SUS304 chrome-nickel alloy stainless steel, the top of the water tank 2 is communicated with a water inlet pipe;
the heat exchange tube 4 is wound on the outer wall of the water tank 2, the heat exchange tube 4 is a copper tube, the outer wall of the heat exchange tube 4 is sleeved with the fixing sleeve 17, the fixing sleeve 17 is welded on the outer wall of the water tank 2 to assist in fixing the heat exchange tube 4, the heat exchange tube 4 is provided with the heat dissipation fins 5, the water tank 2 is correspondingly provided with the heat conduction grooves 6, the heat dissipation fins 5 are positioned in the heat conduction grooves 6, the contact area between the heat dissipation fins 5 and the outer wall of the water tank;
the water inlet of the heat exchange tube 4 penetrates through the side wall of the isolation cover 1 and is communicated with the outlet end of the compressor 8, and the outlet end of the heat exchange tube 4 penetrates through the side wall of the isolation cover 1 and is communicated with the expansion valve 9.
The working principle is as follows: the compressor 8 compresses the backflow low-pressure refrigerant and then discharges the compressed low-pressure refrigerant into high-temperature high-pressure gas, the high-temperature high-pressure refrigerant gas flows through the heat exchange tube 4 wound outside the water tank 2, heat is conducted into the water tank 2 through the heat exchange tube 4, the cooled refrigerant becomes liquid under the continuous action of pressure and enters the evaporator of the hot water unit through the expansion valve 9, and the liquid refrigerant is rapidly evaporated into gas at the evaporator due to the fact that the pressure of the evaporator is suddenly reduced, and a large amount of heat is absorbed. Meanwhile, under the action of the fan, a large amount of air flows through the outer surface of the evaporator, energy in the air is absorbed by the evaporator, the air temperature is rapidly reduced to become cold air to be discharged outside, and then the refrigerant absorbing certain energy flows back to the compressor 8 to enter the next cycle.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.