CN204757399U - Compound heat pump heating water system of many heats source of waste heat recovery formula - Google Patents

Compound heat pump heating water system of many heats source of waste heat recovery formula Download PDF

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Publication number
CN204757399U
CN204757399U CN201520313415.4U CN201520313415U CN204757399U CN 204757399 U CN204757399 U CN 204757399U CN 201520313415 U CN201520313415 U CN 201520313415U CN 204757399 U CN204757399 U CN 204757399U
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China
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heat
water
solar energy
heat pump
waste heat
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董凯军
陈照杰
胡涛
周群
管海凤
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Guangzhou Institute of Energy Conversion of CAS
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Guangzhou Institute of Energy Conversion of CAS
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

Abstract

The utility model discloses a compound heat pump heating water system of many heats source of waste heat recovery formula, including solar energy collection water supply system, waste heat auxiliary system, three big subsystems of air source heat pump water supply system, solar energy collection water supply system contains vacuum tubular heat collector at least, the urine case constitutes straight water supply main pipe way, constitute the boosting return circuit with finned plate heat exchanger again, the defrosting of realization heat exchanger, the waste heat auxiliary system double pipe heat exchanger that establishes ties at least, preheat heat pump system work, increase the suction port of compressor temperature, provide compressor work efficiency, constitute the defrosting return circuit with finned plate heat exchanger again, under no light conditions such as night or cloudy day, the defrosting of realization heat exchanger. Air source heat pump water supply system includes compressor, condenser, reservoir, drier -filter, expansion valve, fin type heat exchanger, double pipe heat exchanger, vapour and liquid separator at least, absorbs the air ability, heating cold water, direct -furnish user. Opening and close of system's each subsystem of valve control, implementation system do not have in all weather and restrict the reliability service season, and operating temperature is low to - 10 DEG C.

Description

The compound heat pump hot water supply system of a kind of afterheat recovery type multi-heat source
Technical field
The utility model relates to the compound heat pump hot water supply system of a kind of afterheat recovery type multi-heat source.
Background technology
Resource utilization is low at present in China, and carbon emission amount is along with the rising of economic development straight line, and the problem of environmental pollution and shortage of resources highlights.In the face of day by day serious energy problem, in country " 12 " planning, propose the thinking of development of the energy, emphasize Green Development, Resources for construction economizing type and friendly environment society.The renewable energy comprehensives such as solar energy utilize technical research and associated equipment research and development, are the Important Actions realizing energy-saving and cost-reducing target.Effective collection solar radiant energy, for the generating in room, heating or refrigeration, will be extremely considerable to the energy consumption reducing building.Simultaneously the resource of industrial exhaust heat is very abundant, and the potentiality of utilization are very large, and distribution is also very wide, and the higher and thermophore stability of flow of many waste heat supply temperatures, has and utilize condition preferably.So the utilization of heat of low-temperature heat source has very large realistic meaning.Solar energy industry is pushed to foreground as the main force of New Energy Industry, and developing regenerative resource-solar energy has had new development in the world.Especially, in solar energy heat utilization, solar energy and low temperature exhaust heat (useless cigarette, waste gas, waste water) become the developing direction that Chinese energy utilizes, and have achieved good energy-saving effect.Air source heat pump has seasonality, cannot successfully manage complex working condition, thus adopts the multiple means complementations such as solar energy, waste heat, air source heat pump to solve the problem of single utilization heat pump hot-water supply deficiency.
At present, the major way of known production hot water comprises solar energy hot-water supply, air source heat pump hot-water supply, electric heating hot water hot-water supply, the principles such as gas heater hot-water supply.Solar energy hot-water supply mainly adopts photovoltaic heat collector to collect solar radiant energy, heating jug cold water, supply user, but which is limited to solar irradiation time and intensity, could better can only run on fine daytime, configure water pot simultaneously and be used for hot-water supply at night, for the situation that water usage at night is comparatively large and intensity of sunshine is poor, device result of use is limited; Air source heat pump mainly utilizes inverse Carnot's principle, with few electric energy, absorb low temperature heat energies a large amount of in air, become high temperature heat by the compression of compressor, transfer to water tank, heat hot water, but be limited to seasonal climate, when particularly winter air temperature is lower, evaporimeter frosting takes place frequently, influential system runs, and even causes heat pump to operate; Electric heating hot water adopts the direct heat hot water of electric energy, and efficiency is high, but consumes electric energy, particularly peak times of power consumption, easily cause region electric energy unbalanced supply, and when flow system flow is larger, heating effect is limited; The heat that gas heater directly utilizes the burning of natural gas, coal gas equal energy source to produce carrys out heating cold water, and device starts rapidly, convenient and swift, but gas-firing consumes primary energy, discharges great amount of carbon dioxide simultaneously, increases the weight of greenhouse effects.Comparatively successful hot-water supply device, adopts solar energy and air source heat pump hybrid system at present, although when better can meet illumination deficiency, realizes user and supplies water, for winter low temperature condition as at outdoor temperature-10 DEG C, still can not effectively run.
Utility model content
Poor in order to overcome existing hot-water supply device seasonal adaptation, working temperature is limited in scope, lower outdoor temperature in winter can not be adapted to, the utility model provides a kind of afterheat recovery type multi-heat source compound heat pump hot water supply system, this system adopts solar energy, waste heat and air source heat pump complementary, can realize round-the-clock without restriction operation in season, even if operating temperature is low to moderate-10 DEG C, also can ensure that system high efficiency runs.
For realizing above object, the utility model takes following technical scheme: the compound heat pump hot water supply system of a kind of afterheat recovery type multi-heat source, comprise solar energy heating water system, waste heat accessory system and air source heat pump water system, waste heat accessory system is in parallel with air source heat pump water system, it realizes the preheating of heat pump working medium for utilizing residual heat resources, simultaneously, waste heat accessory system is by residual heat system collateral branch pipe valve, realize heat pump heat exchanger defrosting effect, solar energy heating water system can direct-furnish hot water or be connected in parallel in air source heat pump water system separately, heat pump heat exchanger is defrosted.
Air source heat pump water system at least comprises the gas-liquid separator, compressor, condenser, reservoir, device for drying and filtering, expansion valve, the finned heat exchanger containing defrost passage, the double pipe heat exchanger that are sequentially connected in series, series connection forms heat supply major loop, and the heat pump water system cooling water inlet on condenser is communicated with described reservoir.
Solar energy heating water system has two pipelines, article one, pipeline is by water circulating pump, the direct-furnish water main line that vacuum tube type heat collector and water tank are followed in series to form, another management is by vacuum tube type heat collector, water tank, containing the finned heat exchanger of defrost passage, solar energy heating water system two bypass conduits valve connect successively formed collateral branch's pipeline, collateral branch's pipeline is connected in parallel on described direct-furnish water main line, the pipeline at water circulating pump place is also connected with solar energy heating water system major cycle pipeline valve in turn, solar energy heating water system hot-water outlet conduits, solar energy heating water system Firsthand Users hot water pipeline valve, heat pump water system hot water outlet on described condenser is connected with solar energy heating water system Firsthand Users hot water pipeline valve, solar energy heating water system cooling water inlet pipeline is also connected with between solar energy heating water system major cycle pipeline valve and water circulating pump.
Waste heat accessory system has two pipelines, article one, pipeline is at least connected described double pipe heat exchanger, preheating is realized to heat pump working medium, another pipeline, an at least series connection waste heat accessory system two bypass conduits valve and the finned heat exchanger containing defrost passage, for realizing the defrosting of double pipe heat exchanger, waste heat medium entrance is connected to by waste heat accessory system major cycle pipeline valve at an input of described waste heat accessory system major cycle pipeline valve, one output of waste heat accessory system major cycle pipeline valve is connected to waste heat media outlet, one end of described waste heat accessory system two bypass conduits valve is connected between waste heat medium entrance and waste heat accessory system major cycle pipeline valve.
The main method of operation of the compound heat pump hot water supply system of afterheat recovery type multi-heat source is as follows:
When fine, when illumination is sufficient, only open solar energy heating water system, adopt vacuum pipe solar water heater to collect heat, heating cold water to 55 DEG C, directly supplies user;
When weather is poor, intensity of illumination is lower, only when solar energy heating water system can not be met consumers' demand, open solar energy heating water system, air source heat pump water system and waste heat accessory system simultaneously, heat pump water system utilizes compressor heat cycles working medium, working medium is at condenser and cold water heat-shift subsequently, and make the water in water tank reach outlet water temperature and require (55 DEG C), solar energy also can provide the hot water of part simultaneously.When in running during evaporimeter frosting, system feedback regulates, and opens the valve of the collateral branch of solar pipe, allows the current direction evaporimeter that remaining temperature in solar energy is not too high, defrosts to the fin of evaporimeter.When evaporimeter does not have frosting, then do not need the valve opening defrosting.Waste heat accessory system circulation main valve is opened, collateral branch's pipe valve is closed, and utilizes residual heat resources (as industrial exhaust heat, cooling water of thermoelectric plant etc.) preheating heat pump major circulatory system backflow working medium, improves the suction temperature of compressor, the pressure ratio of compressor is reduced, and running efficiency of system is higher.
When unglazed photograph, open air source heat pump water system and waste heat accessory system, close solar energy heating water system, heat pump water system is running as usual, heating water tank cold water, and waste heat accessory system is the working medium that flows out of ON cycle main valve residual evaporator then, when in heat pump running during evaporimeter frosting, open residual heat system collateral branch pipe valve, waste heat medium enters the defrost of evaporimeter defrost passage, ensures system cloud gray model.
The utility model compared with prior art, tool has the following advantages: the beneficial effects of the utility model are, while guarantee system supply hot water, adapt to complex working condition, especially when solar energy is restricted, adopt solar energy, waste heat and air source heat pump complementary, round-the-clock without limiting operational system season, operating temperature reaches-10 DEG C.
Accompanying drawing explanation
Fig. 1 is system schematic of the present utility model;
Description of reference numerals: 1-vacuum tube type heat collector, 2-water tank, 3-waste heat medium entrance, 4-waste heat accessory system two bypass conduits valve, 5-waste heat media outlet, 6-waste heat accessory system major cycle pipeline valve, 7-double pipe heat exchanger, 8-gas-liquid separator, 9-compressor, 10-heat pump water system hot water outlet, 11-heat pump water system cooling water inlet, 12-condenser, 13-reservoir, 14-device for drying and filtering, 15-expansion valve, 16-is containing the finned heat exchanger of defrost passage, 17-solar energy heating water system two bypass conduits valve, 18-solar energy heating water system Firsthand Users hot water pipeline valve, 19-solar energy heating water system hot-water outlet conduits, 20-solar energy heating water system major cycle pipeline valve, 21-solar energy heating water system cooling water inlet pipeline, 22-water circulating pump, 23-solar energy heating water system loop valve.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, content of the present utility model is described in further details.
Embodiment:
In FIG, the compound heat pump hot water supply system of a kind of afterheat recovery type multi-heat source is made up of three large subsystems altogether, be respectively solar energy heating water system, waste heat accessory system, air source heat pump water system, waste heat accessory system is in parallel with air source heat pump water system, it realizes the preheating of heat pump working medium for utilizing residual heat resources, simultaneously, waste heat accessory system is by residual heat system collateral branch pipe valve, realize heat pump heat exchanger defrosting effect, solar energy heating water system can direct-furnish hot water or be connected in parallel in air source heat pump water system separately, heat pump heat exchanger is defrosted, above-mentioned three concrete annexations of subsystem are:
Air source heat pump water system comprises the gas-liquid separator 8, compressor 9, condenser 12, reservoir 13, device for drying and filtering 14, expansion valve 15, the finned heat exchanger 16 containing defrost passage, the double pipe heat exchanger 7 that are sequentially connected in series, series connection forms heat supply major loop, and the heat pump water system cooling water inlet 11 on condenser 12 is communicated with reservoir 13;
Solar energy heating water system has two pipelines, article one, pipeline is by water circulating pump 22, the direct-furnish water main line that vacuum tube type heat collector 1 and water tank 2 are followed in series to form, another management is by vacuum tube type heat collector 1, water tank 2, containing the finned heat exchanger 16 of defrost passage, solar energy heating water system two bypass conduits valve 17 connect successively formed collateral branch's pipeline, collateral branch's pipeline is connected in parallel on direct-furnish water main line, the pipeline at water circulating pump 22 place is also connected with solar energy heating water system major cycle pipeline valve 20 in turn, solar energy heating water system hot-water outlet conduits 19, solar energy heating water system Firsthand Users hot water pipeline valve 18, heat pump water system hot water outlet 10 on described condenser 12 is connected with solar energy heating water system Firsthand Users hot water pipeline valve 18, solar energy heating water system cooling water inlet pipeline 21 is also connected with between solar energy heating water system major cycle pipeline valve 20 and water circulating pump 22.
Waste heat accessory system has two pipelines, article one, pipeline is at least connected double pipe heat exchanger 7, preheating is realized to heat pump working medium, another pipeline, an at least series connection waste heat accessory system two bypass conduits valve 4 and the finned heat exchanger 16 containing defrost passage, for realizing the defrosting of double pipe heat exchanger 7, waste heat medium entrance 3 is connected to by waste heat accessory system major cycle pipeline valve 6 at an input of described waste heat accessory system major cycle pipeline valve 7, one output of waste heat accessory system major cycle pipeline valve 7 is connected to waste heat media outlet 5, one end of waste heat accessory system two bypass conduits valve 4 is connected between waste heat medium entrance 3 and waste heat accessory system major cycle pipeline valve 6.
Be below the mode of operation of subsystems:
Solar energy heating water system comprises the following two kinds mode of operation:
Direct-furnish hot water mode of operation: solar energy heating water system Firsthand Users hot water pipeline valve 18 is opened, and solar energy heating water system major cycle pipeline valve 20 is opened, and solar energy heating water system loop valve 23 is opened, all the other valve closings; Cold water is flowed into by solar energy heating water system cooling water inlet pipeline 21, flow through water circulating pump 22, suitable temperature is heated to through vacuum tube type heat collector 1, flow into water tank 2 successively again, solar energy heating water system hot-water outlet conduits 19 and solar energy heating water system Firsthand Users hot water pipeline valve 18, form solar energy heating water system main line, finally for direct hot-water supply.
Defrost mode of operation: containing finned heat exchanger 16, the solar energy heating water system two bypass conduits valve 17 of defrost passage, solar energy heating water system collateral branch in series loop, be connected in parallel on solar energy heating water system major loop, during for finned heat exchanger 16 frosting, solar energy heating water system two bypass conduits valve 17 is opened, solar energy heating water system major cycle pipeline valve 20, part hot water flows into defrost passage and plays defrosting effect.
Waste heat accessory system comprises following mode of operation:
Warm operation pattern: waste heat accessory system major cycle pipeline valve 6 is opened, waste heat medium flows into from waste heat medium entrance 3, through waste heat accessory system major cycle pipeline valve 6, with the heat exchange of air source heat pump water system working medium in double pipe heat exchanger 7, flowed out by waste heat media outlet 5 again, complete waste heat accessory system major loop, Main Function is the heat pump working medium that preheating finned heat exchanger 16 exports.
Defrost mode of operation: waste heat accessory system two bypass conduits valve 4 is opened, cannot heat supply in solar energy heating water system, and during finned heat exchanger 16 frosting, waste heat medium flows into from waste heat medium entrance 3, through waste heat accessory system two bypass conduits valve 4, flows in the defrost passage of finned heat exchanger 16 and realizes defrosting, flow out through waste heat media outlet 5 again, be connected into collateral branch loop, be connected in parallel on waste heat accessory system major loop, this loop Main Function is the defrosting for finned heat exchanger 16.
Air source heat pump water system: first air source heat pump water system working medium flow through from gas-liquid separator 8, after gas-liquid separation, gas enters compressor 9 and realizes compression and heat, then flows into condenser 12, with the heat exchange of condenser inner cold water, working medium after cooling successively through superheated water reservoir 13, device for drying and filtering 14, expansion valve 15 realizes throttling refrigeration, recover normal pressure, flow through finned heat exchanger 16 again, double pipe heat exchanger 7 realizes working medium preheating, finally gets back to gas-liquid separator 8 and completes circulation.Cold water then enters from heat pump water system cooling water inlet 11, is heated in condenser 12, then is flowed out by heat pump water system hot water outlet 10, directly supplies user.
Solar energy heating water system, waste heat accessory system, air source heat pump water system are opened and closed by the control system of each valve, realize the combined running of three digest journals, and guarantee system is round-the-clock without limiting reliability service season, and operating temperature is low to moderate-10 DEG C.
Above-listed detailed description is illustrating for the utility model utility model possible embodiments, this embodiment is also not used to limit the scope of the claims of the present utility model, allly do not depart from the equivalence that the utility model does and implement or change, all should be contained in the scope of the claims of this case.

Claims (4)

1. the compound heat pump hot water supply system of afterheat recovery type multi-heat source, it is characterized in that: comprise the solar energy heating water system for defrosting to heat pump heat exchanger, utilize residual heat resources to realize waste heat accessory system, air source heat pump water system that the preheating of heat pump working medium realizes heat pump heat exchanger defrosting effect simultaneously, waste heat accessory system is in parallel with air source heat pump water system, and solar energy heating water system can direct-furnish hot water or be connected in parallel in air source heat pump water system separately.
2. the compound heat pump hot water supply system of a kind of afterheat recovery type multi-heat source according to claim 1, it is characterized in that: air source heat pump water system at least comprises the gas-liquid separator, compressor, condenser, reservoir, device for drying and filtering, expansion valve, the finned heat exchanger containing defrost passage, the double pipe heat exchanger series connection formation heat supply major loop that are sequentially connected in series, and the heat pump water system cooling water inlet on condenser is communicated with described reservoir.
3. the compound heat pump hot water supply system of a kind of afterheat recovery type multi-heat source according to claim 2, it is characterized in that: solar energy heating water system has two pipelines, article one, pipeline is by water circulating pump, the direct-furnish water main line that vacuum tube type heat collector and water tank are followed in series to form, another management is by vacuum tube type heat collector, water tank, containing the finned heat exchanger of defrost passage, solar energy heating water system two bypass conduits valve connect successively formed collateral branch's pipeline, collateral branch's pipeline is connected in parallel on described direct-furnish water main line, the pipeline at water circulating pump place is also connected with solar energy heating water system major cycle pipeline valve in turn, solar energy heating water system hot-water outlet conduits, solar energy heating water system Firsthand Users hot water pipeline valve, heat pump water system hot water outlet on described condenser is connected with solar energy heating water system Firsthand Users hot water pipeline valve, solar energy heating water system cooling water inlet pipeline is also connected with between solar energy heating water system major cycle pipeline valve and water circulating pump.
4. the compound heat pump hot water supply system of a kind of afterheat recovery type multi-heat source according to claim 3, it is characterized in that: waste heat accessory system has two pipelines, article one, pipeline is at least connected described double pipe heat exchanger, preheating is realized to heat pump working medium, another pipeline, an at least series connection waste heat accessory system two bypass conduits valve and the finned heat exchanger containing defrost passage, for realizing the defrosting of double pipe heat exchanger, waste heat medium entrance is connected to by waste heat accessory system major cycle pipeline valve at an input of described waste heat accessory system major cycle pipeline valve, one output of waste heat accessory system major cycle pipeline valve is connected to waste heat media outlet, one end of described waste heat accessory system two bypass conduits valve is connected between waste heat medium entrance and waste heat accessory system major cycle pipeline valve.
CN201520313415.4U 2015-05-14 2015-05-14 Compound heat pump heating water system of many heats source of waste heat recovery formula Active CN204757399U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104833109A (en) * 2015-05-14 2015-08-12 中国科学院广州能源研究所 Waste heat recovery multiple-heat-source composite type heat pump hot water supply system
CN112013449A (en) * 2020-09-01 2020-12-01 江苏星亚新能源科技有限公司 Solar hot water heating system capable of recycling waste heat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104833109A (en) * 2015-05-14 2015-08-12 中国科学院广州能源研究所 Waste heat recovery multiple-heat-source composite type heat pump hot water supply system
CN112013449A (en) * 2020-09-01 2020-12-01 江苏星亚新能源科技有限公司 Solar hot water heating system capable of recycling waste heat

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