The multifunctional heat pump water heating machine that is easy to defrost
Technical field
The present invention relates to a kind of hot water machine, exactly is multifunctional heat pump water heating machine.
Background technology
Heat pump has tangible energy-saving benefit in domestic hot-water and heating are provided.Heat pump is a kind of refrigeration machine of reverse utilization, and it has only utilized condenser heat in the kind of refrigeration cycle, and the cold that refrigeration machine only utilizes evaporimeter to produce.If can utilize the heat of heat pump simultaneously in the condenser discharging, the cold that can utilize evaporimeter to produce again, heat pump just can obtain double approximately Energy Efficiency Ratio.But the demand of cold and the demand of heat are unmatched in annual Various Seasonal, and summer, refrigeration requirement was big and heat demand is few, and spring and autumn, the sky situation was opposite, and only needed heat winter, and this situation is also because of southern and northern different variant.The single-cycle heat pump in present single wind-heat source and single hydro-thermal source is difficult to accomplish to take into account cold and hot coupling, can satisfy throughout the year the different demands to heat again.On the other hand, well-known, when source pump was moved in the winter time, main problem was exactly frosting; The frosting meeting reduces unit performance, influences heating capacity.The existence of frosting problem has had a strong impact on the northerly promotion and application of this power-saving technology of heat pump.
Summary of the invention
Cold and hot coupling should be taken into account in order to solve the single-cycle heat pump in single wind-heat source and single hydro-thermal source, problem can be satisfied throughout the year again the different demands of heat, and the frosting problem, the invention provides a kind of multifunctional heat pump water heating machine that is easy to defrost.
Structural design scheme of the present invention is as follows:
The multifunctional heat pump water heating machine that is easy to defrost comprises finned air cooling heat exchanger 20 and double pipe heat exchanger A3, the double pipe heat exchanger B4 of refrigeration compressor 1, band blower fan;
The inlet side of described refrigeration compressor 1 gas-liquid separator 2 of connecting, the outlet side of the refrigeration compressor 1 cross valve A22 that connecting, second port of cross valve A22 is being communicated with cross valve B21, the 3rd port of cross valve A22 is being communicated with the import of gas-liquid separator 2, and the 4th port of cross valve A22 is being communicated with the import of double pipe heat exchanger B4;
Second port of cross valve B21 is being communicated with the finned air cooling heat exchanger 20 with blower fan, and the 3rd port of cross valve B21 is being communicated with the import of gas-liquid separator 2, and the 4th port of cross valve B21 is communicated with the import of double pipe heat exchanger A3;
The other end of the finned air cooling heat exchanger 20 of band blower fan is provided with three-way pipe, second port of three-way pipe is provided with check valve C19, the opposite side of check valve C19 is being communicated with reservoir 15, device for drying and filtering 14 and liquid-sighting glass 12 by pipeline, and the 3rd port of three-way pipe is being communicated with by pipeline and heats heating power expansion valve 18 and magnetic valve C17;
The other end of double pipe heat exchanger B4 is provided with three-way pipe, second port of three-way pipe is provided with check valve B11, the opposite side of check valve B11 is being communicated with reservoir 15 entrance points by pipeline, and the 3rd port of three-way pipe is being communicated with refrigeration heating power expansion valve 9 and magnetic valve B10 by pipeline; The inlet side of double pipe heat exchanger B4 is arranged air conditioner cold-heat water out 6, and its outlet side is arranged air conditioner cold-heat water inlet 7;
The other end of double pipe heat exchanger A3 is provided with three-way pipe, and second port of three-way pipe is provided with check valve A16, and the opposite side of check valve A16 is being communicated with reservoir 15 entrance points by pipeline, and the 3rd port of three-way pipe is being communicated with magnetic valve A13 by pipeline; The other end of magnetic valve A13 is provided with four-way pipe, and second port of four-way pipe connects the another port of liquid-sighting glass 12, and the 3rd port of four-way pipe connects the another port of magnetic valve C17, and the 4th port of four-way pipe connects the another port of magnetic valve B10; Double pipe heat exchanger A3; The inlet side of double pipe heat exchanger A3 arranges that the domestic hot-water exports 5, and its outlet side is arranged domestic hot-water's import 8.
The present invention can realize with the air being thermal source, only makes air conditioner cold water, i.e. refrigeration; With the air is thermal source, only makes air conditioning hot, promptly heats; With the air is thermal source, only makes the domestic hot-water; Four kinds of functions of refrigeration time system domestic hot-water; It is multi-functional to be that the present invention has.
When moving in the winter time, there are 2 requirementss of process to defrost, the one, only make domestic hot-water's flow process, the 2nd, only make the air conditioning hot flow process.The defrosting of these two kinds of functions all is directly to be passed in the finned heat exchange of frosting by the high-temperature high-pressure refrigerant steam that utilizes the refrigeration compressor exhaust to defrost, because phase transformation is arranged, has very high latent heat, and defrosting speed is very fast, can guarantee that also defrosting thoroughly.It is a kind of very effective Defrost method.
The present invention compares with solar water heater: 1. energy saving is suitable substantially, the energy-saving effect in air-conditioning area commonly used is better than solar water heater in south, its reason is that novel heat pump just can freely obtain hot water when overcast and rainy use air-conditioning, and solar water heater will use the auxiliary electrical heating; 2. floor space is little, and skyscraper uses the solar water heater area not enough; 3. water timeliness is flexible, can produce hot water at any time, and solar water heater need arrive usefulness at dusk, and is passive.
The present invention with single have heat the hold concurrently heat pump of refrigerating function of water and compare, the present invention can supply and the cold supply by autobalance hot water, after satisfying, hot water can freeze separately, satisfy and hot water can heat water separately when not enough at cold air, and singlely have that to heat the hold concurrently heat pump of refrigerating function of water be retrained by least load, cold is much of that just can not heat production water, and hot water is much of that can not to freeze again.Still can obtain an amount of cold supply when therefore heat pump of the present invention provides hot water after big hotel central air conditioning stops, making the dining room in hotel, public place of entertainment still have air-conditioning.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further described by embodiment.
Embodiment:
Referring to Fig. 1, the multifunctional heat pump water heating machine that is easy to defrost comprises finned air cooling heat exchanger 20 and double pipe heat exchanger A3, the double pipe heat exchanger B4 of refrigeration compressor 1, band blower fan;
The inlet side of described refrigeration compressor 1 gas-liquid separator 2 of connecting, the outlet side of the refrigeration compressor 1 cross valve A22 that connecting, second port of cross valve A22 is being communicated with cross valve B21, the 3rd port of cross valve A22 is being communicated with the import of gas-liquid separator 2, and the 4th port of cross valve A22 is being communicated with the import of double pipe heat exchanger B4;
Second port of cross valve B21 is being communicated with the finned air cooling heat exchanger 20 with blower fan, and the 3rd port of cross valve B21 is being communicated with the import of gas-liquid separator 2, and the 4th port of cross valve B21 is communicated with the hot water inlet of double pipe heat exchanger A3;
The other end of the finned air cooling heat exchanger 20 of band blower fan is provided with three-way pipe, second port of three-way pipe is provided with check valve C19, the opposite side of check valve C19 is being communicated with reservoir 15, device for drying and filtering 14 and liquid-sighting glass 12 by pipeline, and the 3rd port of three-way pipe is being communicated with by pipeline and heats heating power expansion valve 18 and magnetic valve C17;
The other end of double pipe heat exchanger B4 is provided with three-way pipe, second port of three-way pipe is provided with check valve B11, the opposite side of check valve B11 is being communicated with reservoir 15 entrance points by pipeline, and the 3rd port of three-way pipe is being communicated with refrigeration heating power expansion valve 9 and magnetic valve B10 by pipeline; The inlet side of double pipe heat exchanger B4 is arranged air conditioner cold-heat water out 6, and its outlet side is arranged air conditioner cold-heat water inlet 7;
The other end of double pipe heat exchanger A3 is provided with three-way pipe, and second port of three-way pipe is provided with check valve A16, and the opposite side of check valve A16 is being communicated with reservoir 15 entrance points by pipeline, and the 3rd port of three-way pipe is being communicated with magnetic valve A13 by pipeline; The other end of magnetic valve A13 is provided with four-way pipe, and second port of four-way pipe connects the another port of liquid-sighting glass 12, and the 3rd port of four-way pipe connects the another port of magnetic valve C17, and the 4th port of four-way pipe connects the another port of magnetic valve B10; The inlet side of double pipe heat exchanger A3 arranges that the domestic hot-water exports 5, and its outlet side is arranged domestic hot-water's import 8.
With the air is thermal source, and when only making air conditioner cold water (during refrigeration), system flow is as follows:
Refrigerant side (cold-producing medium circulation route): finned air cooling heat exchanger 20 → check valve C19 → reservoir 15 → device for drying and filtering 14 → liquid-sighting glass 12 → magnetic valve B10 → refrigeration heating power expansion valve 9 → double pipe heat exchanger B4 → cross valve A22 the 4th port → gas-liquid separator 2 → refrigeration compressor 1 (during this flow process, magnetic valve A13 and magnetic valve C17 close) of refrigeration compressor 1 → cross valve A22 → cross valve B21 → band blower fan.
With the air is thermal source, and when only making air conditioning hot (when heating), system flow is as follows:
Refrigerant side (cold-producing medium circulation route): refrigeration compressor 1 → cross valve A22 → double pipe heat exchanger B4 → check valve B11 → reservoir 15 → device for drying and filtering 14 → liquid-sighting glass 12 → magnetic valve C17 → heat finned air cooling heat exchanger 20 → cross valve B21 → gas-liquid separator 2 → refrigeration compressor 1 (during this flow process, magnetic valve A13 and magnetic valve B10 close) of heating power expansion valve 18 → band blower fan.
With the air is thermal source, and when only making the domestic hot-water, system flow is as follows:
Refrigerant side (cold-producing medium circulation route): refrigeration compressor 1 → cross valve A22 → cross valve B21 → double-tube heat exchanger A3 → check valve A16 → reservoir 15 → device for drying and filtering 14 → liquid-sighting glass 12 → magnetic valve C17 → heat finned air cooling heat exchanger 20 → cross valve B21 → gas-liquid separator 2 → refrigeration compressor 1 (during this flow process, magnetic valve A13 and magnetic valve B10 close) of heating power expansion valve 18 → band blower fan.
When making domestic hot-water's while and making air conditioner cold water, system flow is as follows:
Refrigerant side (cold-producing medium circulation route): refrigeration compressor 1 → cross valve A22 → cross valve B21 → double pipe heat exchanger A3 → check valve A16 → reservoir 15 → device for drying and filtering 14 → liquid-sighting glass 12 → magnetic valve B10 → refrigeration heating power expansion valve 9 → double pipe heat exchanger B4 → cross valve A22 → gas-liquid separator 2 → refrigeration compressor 1.(during this flow process, magnetic valve A13 and magnetic valve C17 close).
Defrosting flow process when only heating water function is as follows:
The circulation route of the high-temperature high-pressure refrigerant steam of refrigeration compressor exhaust: finned air cooling heat exchanger 20 → check valve C19 → reservoir 15 → device for drying and filtering 14 → liquid-sighting glass 12 → magnetic valve A13 → double-tube heat exchanger A3 → cross valve B21 → gas-liquid separator 2 → refrigeration compressor 1 (during this flow process, magnetic valve C17 and magnetic valve B10 close) of refrigeration compressor 1 → cross valve A22 → cross valve B21 → band blower fan.
Defrosting flow process when only making the air conditioning hot function is as follows:
The circulation route of the high-temperature high-pressure refrigerant steam of refrigeration compressor exhaust: finned air cooling heat exchanger 20 → check valve C19 → reservoir 15 → device for drying and filtering 14 → liquid-sighting glass 12 → magnetic valve B10 of refrigeration compressor 1 → cross valve A22 → cross valve B21 → band blower fan → refrigeration heating power expansion valve 9 → double pipe heat exchanger B 4 → cross valve A22 → gas-liquid separator 2 → refrigeration compressor 1 (during this flow process, magnetic valve C17 and magnetic valve A13 close).
The defrosting of these two kinds of functions all is directly to be passed in the finned heat exchange of frosting by the high-temperature high-pressure refrigerant steam that utilizes the refrigeration compressor exhaust to defrost, because phase transformation is arranged, has very high latent heat, defrosting speed is very fast, can guarantee that also defrosting thoroughly, is a kind of very effective Defrost method.