CN101986043B - Home heating system using domestic water as low-temperature heat source - Google Patents

Home heating system using domestic water as low-temperature heat source Download PDF

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Publication number
CN101986043B
CN101986043B CN2010105726562A CN201010572656A CN101986043B CN 101986043 B CN101986043 B CN 101986043B CN 2010105726562 A CN2010105726562 A CN 2010105726562A CN 201010572656 A CN201010572656 A CN 201010572656A CN 101986043 B CN101986043 B CN 101986043B
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China
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water
domestic
heat exchanger
inlet
temperature
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CN2010105726562A
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CN101986043A (en
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宁静红
刘圣春
严雷
苗惠
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Tianjin University of Commerce
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Tianjin University of Commerce
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12—Hot water central heating systems using heat pumps

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Abstract

本发明公开了一种利用生活用水作为低温热源的家庭供热系统，提供一种集供热和供应热水为一体的家庭供热系统。由供热循环、热水循环和生活用水循环组成。所述供热循环是利用CO2为工质的跨临界循环，包括压缩机、油分离器、壳管式热交换器、翅片管式热交换器、干燥过滤器、膨胀阀、蒸发盘管，热水循环包括热水箱、水泵、第三控制阀、壳管式热交换器。所述生活用水循环包括抽水马桶、用水储水箱、沐浴缸、洗脸盆、洗菜池。本发明充分利用生活中消耗的大量的仍具有较高温度的温水作为循环系统的低温热源，增大低温热源与蒸发温度间的温差，提高蒸发温度，降低了电能的消耗，节约了能源，降低了成本。

The invention discloses a family heating system using domestic water as a low-temperature heat source, and provides a family heating system integrating heat supply and hot water supply. It consists of heating cycle, hot water cycle and domestic water cycle. The heat supply cycle is a transcritical cycle using CO2 as a working medium, including a compressor, an oil separator, a shell-and-tube heat exchanger, a fin-and-tube heat exchanger, a dry filter, an expansion valve, and an evaporation coil , The hot water cycle includes a hot water tank, a water pump, a third control valve, and a shell-and-tube heat exchanger. The domestic water cycle includes a flush toilet, a water storage tank, a bathtub, a washbasin, and a vegetable sink. The present invention makes full use of a large amount of warm water still having a relatively high temperature consumed in daily life as the low-temperature heat source of the circulation system, increases the temperature difference between the low-temperature heat source and the evaporation temperature, increases the evaporation temperature, reduces the consumption of electric energy, saves energy, and reduces costs.

Description

Utilize the domestic heat system of domestic water as low-temperature heat source
Technical field
The present invention relates to a kind of domestic heat system that utilizes domestic water as low-temperature heat source.
Background technology
Along with the raising of living standards of the people, Home Heating and hot water supply have become an indispensable part in modern's habitat environment, particularly China northeast, Tibet and the higher mountain and forest region of most of height above sea level; Need to consume a large amount of domestic hot-waters, winter, most autumn and spring, that is have 2/3rds weather to need heating in 1 year; Basically do not need cooling summer, and some area does not have the condition of central heating again, is that low-temperature heat source adopts outdoor atmosphere if use the air source heat pump system heating; The performance of system changes obviously with outdoor climate, and along with the reduction of outdoor temperature, its evaporating temperature also decreases; The evaporator surface temperature descends thereupon; Even be lower than 0 ℃, when outdoor air is flowed through evaporimeter when being cooled, its contained moisture will separate out and depend on evaporator surface and form the frost layer; When outside air temperature is lower than-10～-15 ℃, the source pump cisco unity malfunction.The performance that has a strong impact on system is used with normal, brings inconvenience.If but adopt the low-temperature heat source of water source as the heat pump heating, and will consume great amount of water resources, do not meet the demand of sustainable development.And water heater mostly is the hot water supply system as independent thermal source such as electric heater, gas heater.Therefore, the energy problem and the environmental pollution that bring of the electric energy of Home Heating and hot water consumption should cause concern.In recent years, the researcher has done some relevant work, but concrete embodiment all is not provided.
Summary of the invention
The present invention is in order to overcome weak point of the prior art, to provide a kind of domestic water that utilizes as low-temperature heat source, and is simple in structure, easy to operate, the protection environment, and the collection heat supply of energy savings and hot-water supply are the domestic heat system of one.
The present invention realizes through following technical proposals:
A kind of domestic heat system that utilizes domestic water as low-temperature heat source is characterized in that, is made up of heat supply circulation, hot water circuit and domestic water circulation; Said heat supply circulation is to utilize CO 2The critical cycle of striding for working medium; Comprise compressor, oil eliminator, shell and tube heat exchanger, fin tube type heat exchanger, device for drying and filtering, expansion valve, evaporation coil; The exhaust outlet of compressor is connected with the inlet of oil eliminator; The gas vent of oil eliminator is divided into two-way, and first control valve of leading up to is connected with the pipe side entrance of shell and tube heat exchanger, and another road is connected with the inlet of fin-tube heat exchanger through second control valve; The pipe side outlet of shell and tube heat exchanger is connected with the inlet of fin tube type heat exchanger; The outlet of fin tube type heat exchanger is connected with the inlet of evaporation coil with device for drying and filtering, expansion valve successively, and the outlet of evaporation coil is connected with the inlet of compressor, and the lubricating oil outlet of oil eliminator is connected with the oil return of compressor inlet; Said hot water circuit comprises boiler, water pump, the 3rd control valve, shell and tube heat exchanger; The inlet of said water pump is connected with the cooling water outlet of boiler; The outlet of water pump is connected with the shell-side of shell and tube heat exchanger inlet; The shell-side outlet of shell and tube heat exchanger is connected with the hot water inlet of boiler through the 3rd control valve, and the filler of boiler is connected additional required cold water with running water pipe; Said domestic water circulation comprises water closet, water storage tank, shower cylinder, washbowl, vegetable sink; The hot water outlet of boiler is connected in parallel through the inlet of separately stop valve and washbowl, shower cylinder, vegetable sink respectively; The outlet of washbowl, shower cylinder, vegetable sink is parallel-connected to the water inlet of water storage tank; The delivery port of water storage tank is connected with the water injection valve of water closet, and the water storage tank is provided with discharge outlet.
Said boiler is surrounded by the insulation layer outward.
Be provided with the water temperature sensor in the boiler, the water temperature sensor is connected with the water temperature display panel of boiler outer surface.
Said water storage tank hot water inlet is provided with screen pack.
Be provided with electrical auxiliary heater in the said boiler, the control element of electrical auxiliary heater is connected with the water temperature sensor.
In the said water storage tank ball-cock assembly is installed.
The present invention has following technique effect:
1, the present invention utilizes domestic water to utilize a large amount of bath waters, vegetable washing water and the face washing water etc. that consume in the life still to have the low-temperature heat source of the warm water of higher temperature as the circulatory system as the domestic heat system of low-temperature heat source; Increase the temperature difference between low-temperature heat source and evaporating temperature; Improve evaporating temperature, reduce the pressure ratio of compressor suction, exhaust, reduce the mechanical power that compressor consumes; Reduce the consumption of electric energy, energy savings.
2, heating system of the present invention adopts green natural refrigerant CO 2For the critical cycle of striding of working medium, utilize CO 2Variations in temperature bigger in the gas cooled process heats the domestic hot-water; A kind of multi-functional environmental protection that heat supply and heat supply water are one, energy-saving domestic heat system of collecting is provided; Avoid the waste of the energy and water resource, reduced cost greatly, satisfied the requirement of environmental protection and low carbon development.
3, the domestic water that utilizes of the present invention is simple, easy to operate as the domestic heat system architecture of low-temperature heat source, environmental protection and energy saving, and convenient control, safe and reliable.
Description of drawings
Fig. 1 utilizes the sketch map of domestic water as the domestic heat system of low-temperature heat source for the present invention.
Fig. 2 is the adapter sketch map of water storage tank.
Fig. 3 is the adapter sketch map of boiler.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment to the detailed description of the invention.
Fig. 1 to Fig. 3 is the sketch map that utilizes domestic water as the domestic heat system of low-temperature heat source of the present invention, is made up of heat supply circulation, hot water circuit and domestic water circulation.Said heat supply circulation is to utilize CO 2The critical cycle of striding for working medium; Comprise compressor 1, oil eliminator 2, shell and tube heat exchanger 3, fin tube type heat exchanger 4, device for drying and filtering 20, expansion valve 15, evaporation coil 14; The exhaust outlet of compressor 1 is connected with the inlet of oil eliminator 2; The gas vent of oil eliminator 2 is divided into two-way, and first control valve 31 of leading up to is connected with the pipe side entrance of shell-tube type heat exchange 3 devices, and another road is connected with the inlet of fin-tube heat exchanger 4 through second control valve 30; The pipe side outlet of shell and tube heat exchanger 3 is connected with the inlet of fin tube type heat exchanger 4; The outlet of fin tube type heat exchanger 4 is connected with the inlet 25 of evaporation coil 14 with device for drying and filtering 20, expansion valve 15 successively, and the outlet 21 of evaporation coil 14 is connected with the inlet of compressor 1, and the lubricating oil outlet of oil eliminator 2 is connected with the oil return inlet of compressor 1.Said hot water circuit comprises boiler 6, water pump 5, the 3rd control valve 8, shell and tube heat exchanger 3; The inlet of water pump 5 is connected with the cooling water outlet 27 of boiler 6; The outlet of water pump 5 is connected with the shell-side inlet of shell and tube heat exchanger 3; The shell-side outlet of shell and tube heat exchanger 3 is connected with the hot water inlet 26 of boiler 6 through the 3rd control valve 8, and the filler 28 of boiler is connected additional required cold water with running water pipe.Said domestic water circulation comprises water closet 12, water storage tank 16, shower cylinder 17, washbowl 18, vegetable sink 19; The hot water outlet 29 of boiler 6 is connected in parallel with the inlet of washbowl, shower cylinder, vegetable sink through stop valve 9, stop valve 10, stop valve 11 respectively; The outlet of washbowl, shower cylinder, vegetable sink is parallel-connected to the water inlet 22 of water storage tank; The delivery port 23 of water storage tank is connected with the water injection valve 13 of water closet, and the water storage tank is provided with discharge outlet 24.
In the said water storage tank ball-cock assembly is installed.
Be provided with electrical auxiliary heater 7 in the said boiler.
Said boiler 6 is outer to be surrounded by the insulation layer, and the heat that prevents hot water distributes and causes heat loss, causes the waste of the energy.Be provided with the water temperature in the water temperature sensor sensing water tank in the boiler 6; Said water temperature sensor is connected with the water temperature display panel of boiler 6 outer surfaces and the control element of electrical auxiliary heater 7; And through the automatic displays temperature of water temperature display panel; When water temperature can not meet the demands, connect 7 pairs of water of electrical auxiliary heater automatically and heat.Said water storage tank 16 hot water inlets 22 are provided with screen pack, filter foreign material and cleaning regularly.
When the room need heat, start compressor and open the 3rd control valve 8 automatically and start water pump 5 simultaneously, the CO of the HTHP that compressor 1 is discharged 2Entering fin tube type heat exchanger 4 after gas is isolated in oil eliminator 2 and got into the water that flows between shell and tube heat exchanger 3 and pipe shell pipe behind the lubricating oil of carrying secretly and carry out heat exchange and emit heat; With the air heat exchange in the room; For the room provides thermal source; Through device for drying and filtering 20 dry filters, become the fluid of low-temp low-pressure to get into evaporation coil 14 through expansion valve 15 throttling step-downs, the heat of vaporization that absorbs water storage tank 16 becomes the CO of low-temp low-pressure 2Gas is got back to compressor.For guaranteeing the lubricants capacity of compressor, isolated lubricating oil returns compressor in time in the oil eliminator 2.
Water in the said boiler 6 is transported to the shell-side space and the CO that manages interior HTHP of shell and tube heat exchanger 3 by water pump 5 2The gas heat exchange; Absorb and get back in the boiler 6 after the heat temperature raises; Get into washbowl 18, shower cylinder 17, vegetable sink 19 respectively through stop valve 9, stop valve 10, stop valve 11 and supply different uses, the warm water that washbowl 18, shower cylinder 17, vegetable sink 19 flow out get in the water storage tank 16 with evaporation coil 14 pipes in the CO of low-temp low-pressure 2After heat is emitted in the gas heat exchange, get in the tank of water closets 12 through the water injection valve of water closet 12 13.Water level in the water storage tank 16 is controlled by ball-cock assembly, when water level surpasses maximum height limit, automatically discharges through discharge outlet 24.
Boiler 6 is provided with temperature and shows and temperature sensor, and when the hot water large usage quantity, the water temperature in the boiler 6 reduces, if can't satisfy the demand, then launches electrical auxiliary heater 7 assistant heating automatically.Less when the hot water consumption, water temperature raises, and then closes first control valve 31 automatically, opens second control valve 30, closes the 3rd control valve 8 and water pump 5 simultaneously.Make the CO of the HTHP of compressor discharge 2Gas does not get into shell and tube heat exchanger 3, and gets into fin tube type heat exchanger 4, and for the room provides thermal source, when the temperature in room reached requiring of setting, heat supply circulation autostop was realized the automatic adjusting of energy.
Although relate to a kind of domestic water that utilizes and carried out special description disclosed as the domestic heat system of low-temperature heat source with reference to embodiment; The embodiment that more than describes is illustrative rather than restrictive; Under the situation that does not break away from the spirit and scope of the present invention, all variations and modification are all within scope of the present invention.

Claims (6)

1. a domestic heat system that utilizes domestic water as low-temperature heat source is characterized in that, is made up of heat supply circulation, hot water circuit and domestic water circulation; Said heat supply circulation is to utilize CO 2The critical cycle of striding for working medium; Comprise compressor, oil eliminator, shell and tube heat exchanger, fin tube type heat exchanger, device for drying and filtering, expansion valve, evaporation coil; The exhaust outlet of compressor is connected with the inlet of oil eliminator; The gas vent of oil eliminator is divided into two-way, and first control valve of leading up to is connected with the pipe side entrance of shell and tube heat exchanger, and another road is connected with the inlet of fin-tube heat exchanger through second control valve; The pipe side outlet of shell and tube heat exchanger is connected with the inlet of fin tube type heat exchanger; The outlet of fin tube type heat exchanger is connected with the inlet of evaporation coil with device for drying and filtering, expansion valve successively, and the outlet of evaporation coil is connected with the inlet of compressor, and the lubricating oil outlet of oil eliminator is connected with the oil return of compressor inlet; Said hot water circuit comprises boiler, water pump, the 3rd control valve, shell and tube heat exchanger; The inlet of said water pump is connected with the cooling water outlet of boiler; The outlet of water pump is connected with the shell-side of shell and tube heat exchanger inlet; The shell-side outlet of shell and tube heat exchanger is connected with the hot water inlet of boiler through the 3rd control valve, and the filler of boiler is connected additional required cold water with running water pipe; Said domestic water circulation comprises water closet, water storage tank, shower cylinder, washbowl, vegetable sink; The hot water outlet of boiler is connected in parallel through the inlet of separately stop valve and washbowl, shower cylinder, vegetable sink respectively; The outlet of washbowl, shower cylinder, vegetable sink is parallel-connected to the water inlet of water storage tank; The delivery port of water storage tank is connected with the water injection valve of water closet, and the water storage tank is provided with discharge outlet.
2. the domestic heat system that utilizes domestic water as low-temperature heat source according to claim 1 is characterized in that said boiler is surrounded by the insulation layer outward.
3. the domestic heat system that utilizes domestic water as low-temperature heat source according to claim 1 is characterized in that, is provided with the water temperature sensor in the boiler, and the water temperature sensor is connected with the water temperature display panel of boiler outer surface.
4. the domestic heat system that utilizes domestic water as low-temperature heat source according to claim 1 is characterized in that said water storage tank hot water inlet is provided with screen pack.
5. the domestic heat system that utilizes domestic water as low-temperature heat source according to claim 1 is characterized in that be provided with electrical auxiliary heater in the said boiler, the control element of electrical auxiliary heater is connected with the water temperature sensor.
6. the domestic heat system that utilizes domestic water as low-temperature heat source according to claim 1 is characterized in that, in the said water storage tank ball-cock assembly is installed.
CN2010105726562A 2010-12-03 2010-12-03 Home heating system using domestic water as low-temperature heat source Expired - Fee Related CN101986043B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244986A (en) * 2013-04-03 2013-08-14 哈尔滨工程大学 Sewage energy and biogas energy combined heat pump heating system
CN105276665B (en) * 2015-11-09 2017-12-26 天津商业大学 Sanitary wastewater waste heat recovery domestic heating system
CN106766107B (en) * 2017-02-28 2022-03-18 广东万和新电气股份有限公司 Intelligent bathing system with plate heat exchanger and control method thereof

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Publication number Priority date Publication date Assignee Title
EP1484559A1 (en) * 2002-01-29 2004-12-08 Daikin Industries, Ltd. Heat pump type water heater
CN201909383U (en) * 2010-12-03 2011-07-27 天津商业大学 Water and energy-saving device supplying heat and hot water

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Publication number Priority date Publication date Assignee Title
CN101909383B (en) * 2009-06-02 2013-04-17 海洋王照明科技股份有限公司 Over-voltage locking protection circuit and power drive circuit using same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1484559A1 (en) * 2002-01-29 2004-12-08 Daikin Industries, Ltd. Heat pump type water heater
CN201909383U (en) * 2010-12-03 2011-07-27 天津商业大学 Water and energy-saving device supplying heat and hot water

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