CN201318799Y

CN201318799Y - Air source heat water heater

Info

Publication number: CN201318799Y
Application number: CNU200820126483XU
Authority: CN
Inventors: 胡会东
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-30
Filing date: 2008-06-30
Publication date: 2009-09-30
Anticipated expiration: 2018-06-30

Abstract

The utility model discloses an air source heat water heater, which comprises a main machine, a thermal storage and heat preservation water tank and a controller; the main machine adopts a refrigerant thermal circulation system consisting of a fin tube type evaporating heat absorber, a compressor, a double-pipe heat exchanger, an electric expansion valve and a defrosting mechanism; the defrosting mechanism adopts the structure that the compressor is connected into the refrigerant thermal circulation system through a four-way reversing valve; a one-way valve and an electric expansion valve are arranged in sequence on a pipeline between the double-pipe heat exchanger and the fin tube type evaporating heat absorber; the lower part of an auxiliary defrosting heat exchanger is connected to the pipeline between the one-way valve and the electric expansion valve through a defrosting electromagnetic valve; a heat preservation water tank is provided with an upper-and-down circulating hot water pipe communicated with the double pipe heat interchanger; and a circulating water pump is mounted on the circulating hot water pipe. The water heater provided by the utility model has the advantages of wide application scope, energy conservation, environmental protection, convenient use and the like.

Description

A kind of air heat source water heater

Technical field

The utility model relates to a kind of water heater, relates in particular to a kind of with the heat pump water heater of air as thermal source, i.e. air source water heater.

Background technology

In the face of the situation that resource growing tension, environmental pollution are on the rise, air source water heater is being used widely aspect the productive life hot water with its advantages of energy saving and environmental protection.Air source water heater generally comprises water storage tank, source pump, heat exchanger, cooling-water temperature sensor, environment temperature sensor and controller etc. at present.Described controller is accepted the detectable signal from environment temperature sensor and cooling-water temperature sensor, whether the work of the temperature control source pump of surveying according to temperature sensor, major defect is no defrost function, and the suitable environment temperature range is little, the thermal efficiency is low, can't use in the environment of low temperature and high relative humidity.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming of prior art, adopts the heat pump of Carnot cycle, a kind of energy-saving and environmental protection is provided, convenient, the higher air source water heater of rate of heat exchange are installed.

The purpose of this utility model is to realize like this, a kind of air source water heater, it comprises main frame, heat storing and heat preserving water tank and controller, described main frame is a cold-producing medium heat circulating system that is coupled together by pipeline, and this refrigerant-cycle systems mainly comprises fin tube type evaporation heat dump, compressor, double-tube heat exchanger, electric expansion valve; Described attemperater has the circulating hot water pipe up and down who is communicated with double-tube heat exchanger, and the water inlet and the hot water outlet that are communicated with running water are arranged, and water circulating pump is installed on the circulating hot water pipe; It is characterized in that: be provided with defrost mechanism in the described main frame, it is that compressor is connected in the cold-producing medium heat circulating system by four-way change-over valve, the four-way change-over valve first via connects compressor high-voltage end, the second the tunnel connects double-tube heat exchanger top, Third Road connects auxiliary defrost heat exchanger and compressor low-pressure end simultaneously, the four the tunnel connects fin tube type evaporation heat dump top, to the pipeline of fin tube type evaporation heat dump, be disposed with check valve at double-tube heat exchanger, electric expansion valve, auxiliary defrost heat exchanger bottom is connected on the pipeline between check valve and the electric expansion valve by the defrost magnetic valve.

Described controller, it is made up of control mainboard and line control machine, mainboard and line control machine master chip all adopt Single-chip Controlling, the importation comprises environment temperature sensor, coil temperature sensor, water tank temperature sensor and water level switch, and output comprises and is used to control entering water electromagnetic valve, water circulating pump, compressor, blower fan, electric expansion valve, defrost magnetic valve.

In order to increase fin tube type evaporation heat dump endothermic effect, the utility model also comprises a blower fan that acts on the fin tube type evaporation heat dump.

Air source water heater of the present utility model compared with prior art, its advantage is: 1, owing to adopt defrost mechanism, guaranteed that Teat pump boiler can reliability service, defrosting timely and effectively in the low temperature and high relative humidity environment.2, the automation of being made up of singlechip controller, some sensors and control assembly detects control system, has realized Automatic Control, need not the special messenger and keeps an eye on, as long as you set supply water temperature and switching on and shutting down time, hot water can indiscriminately ad. as one wishes flow out.3, save the energy, import the 1kw electric energy, can carry the heat energy of 3～6kw, can also adopt the paddy electricity according to peak valley electricity policy to water tank, more economical.4, the component layouts of each in casing is reasonable, and compact conformation is easy to install, can be widely used in factory, office, school, hotel, swimming pool etc., and can obtain free cold air supply opening.

Description of drawings

Fig. 1 is the utility model structural representation.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described further.

As shown in Figure 1, a kind of air source water heater, it comprises main frame, heat storing and heat preserving water tank and controller, described main frame is a cold-producing medium heat circulating system that is coupled together by pipeline, and this refrigerant-cycle systems mainly comprises fin tube type evaporation heat dump 6, compressor 5, double-tube heat exchanger 3, electric expansion valve 8 and acts on blower fan 7 on the fin tube type evaporation heat dump; Described attemperater 1 has the circulating hot water pipe up and down 2 who is communicated with double-tube heat exchanger 3, and the water inlet and the entering water electromagnetic valve 14 that are communicated with running water are arranged, and hot water outlet 13 is arranged, and water circulating pump 12 is installed on the circulating hot water pipe; Be provided with defrost mechanism in the described main frame, it is that compressor is connected in the cold-producing medium heat circulating system by four-way change-over valve 4, four-way change-over valve 4 first via connect compressor 5 high-pressure sides, the second the tunnel connects double-tube heat exchanger 3 tops, Third Road connects auxiliary defrost heat exchanger 9 tops and compressor 5 low-pressure ends, the four the tunnel connects fin tube type evaporation heat dump 6 tops, to the pipeline of fin tube type evaporation heat dump 6, be disposed with check valve 11 at double-tube heat exchanger 3, electric expansion valve 8, auxiliary defrost heat exchanger 9 bottoms are connected on the pipeline between check valve 11 and the electric expansion valve 8 by defrost magnetic valve 10.Described controller, it is made up of control mainboard and line control machine, mainboard and line control machine master chip all adopt Single-chip Controlling, the importation comprises environment temperature sensor, coil temperature sensor, water tank temperature sensor and water level switch, and output comprises and is used to control entering water electromagnetic valve 14, water circulating pump 12, compressor 5, blower fan 7, electric expansion valve 8, defrost magnetic valve 10.

When normally heating water, cold-producing medium R22 cyclic process as shown in Figure 1, circulate along the solid arrow direction, the compressed machine 5 of cold-producing medium is compressed into high temperature and high pressure gas and enters double-tube heat exchanger 3 by four-way change-over valve 4, carrying out heat exchange with recirculated water in double-tube heat exchanger 3 heats water, refrigerant vapour is condensed into cryogenic high pressure liquid simultaneously, flow through behind the check valve 11, become low-temp low-pressure liquid to enter fin tube type evaporation heat dump 6 by electric expansion valve 8 throttlings, in fin tube type evaporation heat dump 6, carry out heat exchange and flash to low-temperature low-pressure refrigerant gas with compulsory air stream, pass through reversal valve 4 backflow compressors 5 at last again, form closed cooling cycle system, so again and again recirculated water is heated.

The winter in coastal high humidity area in south, the easy frosting of fin tube type evaporation heat dump, frosting influences the cold-producing medium heat absorption.After controller detects the frosting of fin tube type evaporation heat dump and acquires a certain degree, make entering of the system program of feeling well, as shown in Figure 1, circulate along the dotted arrow direction, the compressed machine 5 of cold-producing medium is compressed into high temperature and high pressure gas and enters fin tube type evaporation heat dump 6 by four-way change-over valve 4, refrigerant vapour is condensed into cryogenic high pressure liquid in to 6 defrostings of fin tube type evaporation heat dump, flash to low-temperature low-pressure refrigerant gas through electric expansion valve 8 and the auxiliary defrost heat exchanger 9 of defrost magnetic valve 10 inflows, at last again through being back to compressor 5 by four-way change-over valve 4, because the characteristic of check valve 11 reverse not conductings is freezed thereby stop cold-producing medium to flow into 4 pairs of recirculated waters of double-pipe condenser effectively.

Claims

1, a kind of air source water heater, it comprises main frame, heat storing and heat preserving water tank and controller, described main frame is a cold-producing medium heat circulating system that is coupled together by pipeline, and this refrigerant-cycle systems mainly comprises fin tube type evaporation heat dump (6), compressor (5), double-tube heat exchanger (3), electric expansion valve (8); Described attemperater (1) has the circulating hot water pipe up and down (2) who is communicated with double-tube heat exchanger (3), and the water inlet and the hot water outlet that are communicated with running water are arranged, and goes up circulating hot water pipe (2) water circulating pump (12) is installed; It is characterized in that: be provided with defrost mechanism in the described main frame, it is that compressor (5) is connected in the cold-producing medium heat circulating system by four-way change-over valve (4), four-way change-over valve (4) first via connects compressor (5) high-pressure side, the second the tunnel connects double-tube heat exchanger (3) top, Third Road connects auxiliary defrost heat exchanger (9) and compressor (5) low-pressure end simultaneously, the four the tunnel connects fin tube type evaporation heat dump (6) top, to the pipeline of fin tube type evaporation heat dump (6), be disposed with check valve (11) at double-tube heat exchanger (3), electric expansion valve (8), auxiliary defrost heat exchanger (9) bottom is connected on the pipeline between check valve (11) and the electric expansion valve (8) by defrost magnetic valve (10).

2, according to the described air source water heater of claim 1, it is characterized in that: described controller, it is made up of control mainboard and line control machine, mainboard and line control machine master chip all adopt Single-chip Controlling, the importation comprises environment temperature sensor, coil temperature sensor, water tank temperature sensor and water level switch, and output comprises and is used to control entering water electromagnetic valve (14), water circulating pump (12), compressor (5), blower fan (7), electric expansion valve (8), defrost magnetic valve (10).

3, according to claim 1 or 2 described air source water heaters, it is characterized in that: it also comprises a blower fan (7) that acts on the fin tube type evaporation heat dump (6).