CN211739560U

CN211739560U - Heat pump evaporator with auxiliary heating

Info

Publication number: CN211739560U
Application number: CN202020131912.3U
Authority: CN
Inventors: 冯永坚; 李健仪; 罗志峰; 吴淑敏; 邱桂花
Original assignee: Foshan Guangteng New Energy Co ltd
Current assignee: Foshan Guangteng New Energy Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-10-23
Anticipated expiration: 2030-01-20

Abstract

The utility model provides a heat pump evaporator with auxiliary heating, its includes the evaporimeter shell, and cavity is provided with the evaporation chamber in the shell, and the evaporation intracavity is evenly covered with a plurality of evaporating pipes and radiating fin, and the radiating fin suit is on the evaporating pipe surface, the evaporation intracavity still be provided with auxiliary heating pipe, auxiliary heating pipe one end is passed through the inlet tube and is connected with the water pump, the other end passes through the wet return and is connected with the electromagnetic heating jar, the oral siphon and the electromagnetic heating jar of water pump are connected, electromagnetic heating jar and control system electricity federation, cold water gets into auxiliary heating pipe under the effect of water pump after the electromagnetic heating jar intensifies, heats the evaporimeter. The utility model has the advantages that: the electromagnetic heating water circulation is utilized to heat the evaporator, so that the defrosting effect on the steam generator is achieved, and the electromagnetic heating is utilized to supplement heat for the evaporator under the extreme environment, so that the heat pump can continue to work, and the use requirement under the extreme environment is met.

Description

Heat pump evaporator with auxiliary heating

Technical Field

The utility model relates to an evaporator, specifically a heat pump evaporator with auxiliary heating.

Background

The air source heat pump system has the advantages of energy conservation, environmental protection, space saving and the like, can give consideration to refrigeration and heating at the same time, has two purposes, meets the user requirements of cooling in summer and heating in winter, and has high equipment utilization rate. Based on the series of advantages, the air source heat pump is more and more favored and is rapidly developed. However, when the air source heat pump is operated under the meteorological conditions of-5 ℃ to 5 ℃ and the relative humidity of more than 70%, the surface of the outdoor heat exchanger is easy to frost, so that the unit is unstable in operation or poor in reliability. After the outdoor heat exchanger frosts, the frost layer is continuously thickened, so that the thermal resistance is increased, the air flow is blocked, the heat supply capacity and COP (coefficient of performance) of a unit are reduced, and the energy waste is caused.

Common defrosting methods include reverse cycle defrosting, hot gas bypass defrosting, and heat pump defrosting with an electric heating function. When the reverse circulation defrosting is performed, heat supply to the indoor space needs to be stopped, and meanwhile, the indoor heat is absorbed to defrost, so that the water supply temperature is reduced, and the comfort level of a human body is seriously influenced; in addition, the exhaust pressure during reverse circulation defrosting is small, and the system is easy to have a lot of impact on the system due to the reversing of the four-way valve, so that the stability of the system is influenced, and the defrosting time is long. Although hot gas bypass defrosting avoids absorbing heat in a room and the reduction range of the water supply temperature is small, the problems of high-load operation of a compressor, reliable operation of the compressor and the like exist during defrosting, and the defrosting time is long. The heat pump defrosting with the electric heating function is a defrosting mode which acts together with reverse cycle defrosting, can effectively prevent the problem that the fin heat exchanger climbs ice in a low-temperature environment and has a good defrosting effect, but has the same problem as reverse cycle defrosting and more complex control program.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming that prior art exists, providing a simple structure, the cost of manufacture is low, and convenience safe in utilization effectively carries out the heat pump evaporator with auxiliary heating who defrosts to the evaporimeter.

The utility model discloses the purpose is realized with following mode: the utility model provides a heat pump evaporator with auxiliary heating, its includes the evaporimeter shell, and cavity is provided with the evaporation chamber in the shell, and the evaporation intracavity is evenly covered with a plurality of evaporating pipes and radiating fin, and the radiating fin suit is on the evaporating pipe surface, and the air gets into the evaporation intracavity from shell front end entry, through shell back end export discharge, its characterized in that after evaporating pipe and radiating fin heat transfer: the evaporation intracavity still be provided with auxiliary heating pipe, auxiliary heating pipe one end is passed through the inlet tube and is connected with the water pump, and the other end passes through the wet return and is connected with the electromagnetic heating jar, the oral siphon and the electromagnetic heating jar of water pump are connected, the electromagnetic heating jar and control system electricity federation, cold water gets into auxiliary heating pipe under the effect of water pump after the electromagnetic heating jar intensifies, heats the evaporimeter.

The auxiliary heating pipe is a copper pipe, and the auxiliary heating pipe is connected with the evaporation pipe through a radiating fin.

And a temperature sensing device is also arranged in the electromagnetic heating tank and is connected with the control system.

The electromagnetic heating tank comprises a water tank body made of ferromagnetic materials, and the surface of the water tank body is wrapped with an electromagnetic heating coil and a heat insulation layer.

The utility model has the advantages that: 1. simple structure, low production cost and improved market competitiveness. 2. The electromagnetic heating water circulation is utilized to heat the evaporator, so that the defrosting effect on the steam generator is achieved, and the electromagnetic heating is utilized to supplement heat for the evaporator under the extreme environment, so that the heat pump can continue to work, and the use requirement under the extreme environment is met.

Drawings

Fig. 1 is the final assembly effect diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The utility model provides a heat pump evaporator with auxiliary heating, its includes evaporator shell 1, and cavity is provided with the evaporation chamber in the shell 1, and the evaporation intracavity is evenly covered with a plurality of evaporating tubes and radiating fin, and the radiating fin suit is on the evaporating tube surface, and the air gets into the evaporation intracavity from 1 front end entry of shell, through 1 back of the body end export discharge, its characterized in that of shell after evaporating tube and radiating fin heat transfer: the evaporation intracavity still be provided with

auxiliary heating pipe

2, 2 one end of auxiliary heating pipe is passed through inlet tube 3 and is connected with water pump 5, and the other end passes through wet return 4 and is connected with the electromagnetic heating jar, inlet tube 6 and the electromagnetic heating jar of water pump 5 are connected, the electromagnetic heating jar and the 11 electricity federation of control system, cold water passes through the electromagnetic heating jar after rising temperature, gets into auxiliary heating pipe 2 under the effect of water pump 5, heats the evaporimeter.

The auxiliary heating pipe 2 is a copper pipe, and the auxiliary heating pipe 2 is connected with the evaporating pipe through a radiating fin.

The electromagnetic heating tank is also internally provided with a temperature sensing device 10 connected with a control system 11.

Electromagnetic heating jar include the water pitcher body 7 by the preparation of ferromagnetism material, water pitcher body 7 surface winding cladding has electromagnetic heating coil 8 and heat preservation 9.

The working principle is as follows: an electromagnetic heating tank is arranged at the outer end of the evaporator, an auxiliary heating pipe is arranged in an evaporation cavity of the evaporator, and the auxiliary heating pipe is connected with the electromagnetic heating pipe. When the evaporator needs defrosting, the control system starts the electromagnetic heating tank, cold water enters the electromagnetic heating tank to be heated and heated to be hot water, the hot water enters the auxiliary heating pipe through the water inlet pipe under the action of the water pump, the auxiliary heating pipe is heated, and heat is transferred to the radiating fins to heat the radiating fins, so that the evaporator is heated, and the purpose of defrosting the evaporator is achieved.

After hot water flows through the auxiliary heating pipe, the hot water enters the electromagnetic heating pipe again through the water return pipe to be reheated, the hot water enters the water inlet pipe under the action of the water pump to heat the evaporator, the water can be recycled, water resources are saved, and waste is avoided.

Compare with traditional defrosting structure, utilize the water heating to defrost in the present case, with low costs, simple structure does not have potential safety hazards such as electric leakage, has guaranteed the normal use of evaporimeter, effectively defrosts the evaporimeter, prolongs its life. Besides, the auxiliary heating pipe is a copper pipe and is connected with the evaporating pipe through the radiating fins, so that the connection is simple, the heat conduction effect is good, and the heat efficiency is ensured.

Furthermore, the electromagnetic heating tank is also provided with a temperature sensing device connected with the control system, so that the temperature condition of the electromagnetic heating tank can be monitored at any time, the actual condition of the auxiliary heating pipe can be mastered in real time, and the defrosting control of a user is facilitated, so that the electromagnetic heating tank can be widely popularized. And under extreme environment, when the user need heat again, when the heat that absorbs in the follow air is not enough to heat supply, control system starts electromagnetic heating jar, utilizes the heat that electromagnetic heating jar produced to the evaporimeter heating to improve evaporimeter operating temperature, make the heat pump can continue to work, with the work requirement of coping with heat pump under the extreme environment.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a heat pump evaporator with auxiliary heating, its includes evaporator shell (1), and cavity is provided with the evaporation chamber in shell (1), and the evaporation intracavity is evenly covered with a plurality of evaporating pipes and radiating fin, and the radiating fin suit is on the evaporating pipe surface, and the air gets into the evaporation intracavity from shell (1) front end entry, through shell (1) back of the body end export discharge, its characterized in that after evaporating pipe and radiating fin heat transfer: the evaporation intracavity still be provided with auxiliary heating pipe (2), auxiliary heating pipe (2) one end is passed through inlet tube (3) and is connected with water pump (5), the other end passes through wet return (4) and is connected with the electromagnetic heating jar, oral siphon (6) and the electromagnetic heating jar of water pump (5) are connected, the electromagnetic heating jar with control system (11) electricity federation, cold water gets into auxiliary heating pipe (2) under the effect of water pump (5) through the electromagnetic heating jar back that heaies up, heats the evaporimeter.

2. A heat pump evaporator with auxiliary heating according to claim 1, characterized in that: the auxiliary heating pipe (2) is a copper pipe, and the auxiliary heating pipe (2) is connected with the evaporation pipe through a radiating fin.

3. A heat pump evaporator with auxiliary heating according to claim 1, characterized in that: the electromagnetic heating tank is also internally provided with a temperature sensing device (10) connected with a control system (11).

4. A heat pump evaporator with auxiliary heating according to claim 1, characterized in that: the electromagnetic heating tank comprises a water tank body (7) made of ferromagnetic materials, wherein the surface of the water tank body (7) is wrapped with an electromagnetic heating coil (8) and a heat preservation layer (9).