CN104676904A - Heater - Google Patents

Heater Download PDF

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Publication number
CN104676904A
CN104676904A CN201510047799.4A CN201510047799A CN104676904A CN 104676904 A CN104676904 A CN 104676904A CN 201510047799 A CN201510047799 A CN 201510047799A CN 104676904 A CN104676904 A CN 104676904A
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CN
China
Prior art keywords
water
temperature
heat pump
frequency
warm water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510047799.4A
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Chinese (zh)
Inventor
孟照峰
王芳
赵亚乐
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Shanghai for Science and Technology filed Critical University of Shanghai for Science and Technology
Priority to CN201510047799.4A priority Critical patent/CN104676904A/en
Publication of CN104676904A publication Critical patent/CN104676904A/en
Pending legal-status Critical Current

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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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

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  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

Disclosed is a heater. Warm water is obtained by heating cool water through a solar energy portion, hot water is obtained by heating the warm water through a heat pump portion, and a control portion can control the heat pump portion to start and stop. The control portion controls the heat pump portion to start when the solar energy portion cannot heat the water into preset temperature, the warm water form the solar energy portion is heated, and problems that water temperature of the solar heater is lowered due to continuous cloudy days or too much water used and bathing of users cannot be met are solved; the heater adopt a combination of solar energy and a heat pump technology, the solar energy belongs to renewable green energy, a heat pump consumes a small part of power energy during operation, energy equivalent to 4-7 times of that of the consumed power energy can be extracted from environment media (water, air, soil and the like), and a great deal of high-grade energy sources can be saved.

Description

Water heater
Technical field
The invention belongs to field of water heaters, be specifically related to a kind of water heater carrying out cold water to add thermosetting hot water.
Background technology
Under the dual-pressure of energy crisis and environmental pollution, solar energy, as renewable green energy resource, causes people to pay close attention to widely, and country applies, quickening solar energy utilization technique as the development priority of New Energy Industry.
At present, China's solar energy industry scale ranks first in the world, and be the maximum country of global solar water heater output and use amount, but, solar water heater too relies on sunlight, and at successive cloudy days or use hot water amount too much, water temperature can decline, do not reach required temperature of having a bath, make troubles to user.And the solar water heater of charged auxiliary heating consumes electric energy completely when needs auxiliary heating, be unfavorable for saving high-grade energy.
Summary of the invention
The present invention carries out to solve above-mentioned problem, and object is that providing a kind of can utilize solar energy and do not carried out heating by cold water for a long time by weather restriction and can save the water heater of high-grade energy.
The invention provides a kind of water heater, for cold water is heated, it is characterized in that, comprising: solar energy portion, comprises: the first temperature sensing unit carrying out cold water to heat the solar units obtaining warm water and the warm water temperature gathering warm water; Heat pump portion, comprises: cold-producing medium, refrigerant compression become the restricting element of the frequency-changeable compressor of high temperature and high pressure steam, adjusting refrigerant flow rate, control the first switch, the second temperature sensing unit gathering environment temperature that frequency-changeable compressor opens and close and utilize high temperature and high pressure steam to be carried out by warm water heating the heat exchange unit obtaining hot water; And control part, the closed and disconnected of the first switch is controlled according to the warm water temperature signal of the first temperature sensing unit transmission, thus control frequency-changeable compressor startup and stop, and control the frequency of frequency-changeable compressor and the aperture of restricting element according to the ambient temperature signal that the second temperature sensing unit transmits.
In water heater provided by the invention, such feature can also be had: auxiliary electrical heater portion, heat pump portion hot water is out heated, auxiliary electrical heater portion comprises: gather the 3rd temperature sensing unit of the hot water temperature of hot water, hot water carried out the auxiliary electrical heater unit heated and the second switch controlling auxiliary electrical heater unit starting and stopping, second switch controls the startup of auxiliary electrical heater unit according to hot water temperature's signal that the 3rd temperature sensing unit transmits and closes.
In water heater provided by the invention, can also have such feature: wherein, heat pump portion also comprises four-way change-over valve, and frequency-changeable compressor is connected with heat exchange unit by four-way change-over valve, switches the flow direction that four-way change-over valve can change cold-producing medium.
In water heater provided by the invention, can also have such feature: wherein, heat pump portion also comprises heat-insulation unit, and heat-insulation unit covers the surface of indoor heat exchanger.
In water heater provided by the invention, can also have such feature: wherein, restricting element is electric expansion valve.
The effect of invention and effect
According to water heater of the present invention, because cold water is carried out heating by solar energy portion obtain warm water, warm water is carried out heating and obtains hot water by heat pump portion, and control part can control heat pump portion to be started and stop.When water can not be heated to predetermined temperature by solar energy portion, control part controls heat pump portion and starts, by from solar energy portion out warm water heating, therefore the water temperature reduction that solar water heater too much causes at successive cloudy days or water consumption is solved, the problem that user has a bath can not be met, and water heater of the present invention adopts solar energy and heat pump techniques to be used in conjunction, wherein solar energy belongs to renewable green energy resource, and during heat pump work, itself consume little a part of electric energy, but can from surrounding medium (water, air, soil etc.) in extract and be equivalent to consume electric energy 4-7 energy doubly, thus a large amount of high-grade energy can be saved.
Accompanying drawing explanation
Fig. 1 is the structural representation of solar water heater in embodiments of the invention.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reach object and effect is easy to understand, the detailed description of the invention of solar water heater of the present invention is described below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of solar water heater in embodiments of the invention.
As shown in Figure 1, water heater 100, for being heated by cold water, comprises solar energy portion 110, heat pump portion 120 and control part 130.
Solar energy portion 110 is for heating the cold water entered from cold water pipe, and solar energy portion 110 comprises: solar units 111 and the first temperature sensing unit 112.
Solar units 111 is for being undertaken adding thermosetting warm water by cold water, and the water inlet of solar units 111 is connected with cold water pipes, and the cold water entering solar energy equipment from cold water pipe is heated by solar units 111.First temperature sensing unit 112 is arranged on the delivery port of solar units 111, for gathering the warm water temperature from solar units 111 warm water out.
Heat pump portion 120 is for heating solar energy portion 110 warm water out, and heat pump portion 120 comprises: frequency-changeable compressor 121, heat exchange unit 127, electric expansion valve 123, four-way change-over valve 125, second temperature sensing unit 126, first switch (not shown) and cold-producing medium (not shown).
The closed and disconnected of the first switch can control unlatching and the stopping of frequency-changeable compressor 121.Frequency-changeable compressor 121, for low pressure refrigerant vapor compression is generated high temperature and high pressure steam, has three frequencies: high frequency, intermediate frequency and low frequency.
Heat exchange unit 127 utilizes high temperature and high pressure steam that warm water is carried out heating and obtains hot water, comprises: indoor heat exchanger 124 and outdoor heat exchanger 122.The steam of HTHP is discharged by frequency-changeable compressor 121, enters heat exchanger 127 by four-way change-over valve 125.Indoor heat exchanger 124 utilizes high temperature and high pressure steam to heat warm water, and its water inlet is connected with the delivery port in solar energy portion 110, and one end that cold-producing medium is imported and exported is connected with four-way change-over valve 125.Outdoor heat exchanger 122 is for absorbing the heat of external environment, and the liquid refrigerant of low-temp low-pressure is vaporized into low pressure refrigerant vapor in outdoor heat exchanger 122, and one end that its cold-producing medium is imported and exported is connected with four-way change-over valve 125.Low pressure refrigerant vapor enters frequency-changeable compressor 121 by four-way change-over valve 125.
Four-way change-over valve 125 can change the flow direction of the high pressure refrigerant vapor of discharging from frequency-changeable compressor 121.When after outdoor heat exchanger 122 frosting, switch the flow direction that four-way change-over valve 125 changes the high pressure refrigerant vapor that frequency-changeable compressor 121 is discharged, thus outdoor heat exchanger 122 is defrosted.
Electric expansion valve 123 is for regulating the flow of cold-producing medium, it comprises three apertures, large aperture, middle aperture and small guide vane, the other end that one end is imported and exported with indoor heat exchanger 124 cold-producing medium is connected, and the other end that the other end is imported and exported with outdoor heat exchanger 122 cold-producing medium is connected.
Second temperature sensor 126 can gather the environment temperature of outdoor environment.
Heat pump portion 120 also comprises heat-insulation unit (not shown), and the surface coverage of indoor heat exchanger 124 has heat-insulation unit, can reduce its thermal loss.
Control part 130 is for controlling the closed and disconnected of the first switch, thus control startup and the stopping in heat pump portion 120, the warm water temperature signal that control part 130 passes over according to the first temperature sensing unit 112 and the ambient temperature signal that the second temperature sensing unit 126 passes over control the frequency of frequency-changeable compressor 121 and the aperture of electric expansion valve 123, thus reach higher coefficient of refrigerating performance when heat pump portion 120 starts.
When the temperature of solar energy portion 110 delivery port is higher than 40 DEG C, the first switch is in off-state, and heat pump portion 120 does not start.
Summer, outdoor temperature was generally between 25 ~ 43 DEG C, when the warm water temperature of solar energy portion 110 delivery port is lower than 40 DEG C, control part 130 controls the first switch according to the warm water temperature signal that the first temperature sensing unit 112 transmits and closes, frequency-changeable compressor 121 starts, simultaneously, the ambient temperature signal that control part 130 transmits according to the second temperature sensor 126, control frequency-changeable compressor 121 low-frequency operation, electric expansion valve 123 opens large aperture.
Spring and autumn outdoor temperature is generally between 7 ~ 25 DEG C, and when the warm water temperature of solar energy portion 110 delivery port is lower than 40 DEG C, control part 130 controls the first switch according to the warm water temperature signal that the first temperature sensing unit 112 transmits and closes, and frequency-changeable compressor 121 starts.
When the warm water temperature of solar energy portion 110 delivery port is at 25 ~ 40 DEG C, the warm water temperature signal that control part 130 transmits according to the first temperature sensing unit 112 and the ambient temperature signal that the second temperature sensor 126 transmits, control frequency-changeable compressor 121 low-frequency operation, electric expansion valve 123 opens middle aperture.
When the warm water temperature of solar energy portion 110 delivery port is between 15 ~ 25 DEG C, the warm water temperature signal that control part 130 transmits according to the first temperature sensing unit 112 and the ambient temperature signal that the second temperature sensor 126 transmits, control frequency-changeable compressor 121 intermediate frequency to run, electric expansion valve 123 opens middle aperture.
When the warm water temperature of solar energy portion 110 delivery port is between 9 ~ 15 DEG C, the warm water temperature signal that control part 130 transmits according to the first temperature sensing unit 112 and the ambient temperature signal that the second temperature sensor 126 transmits, control frequency-changeable compressor 121 high frequency to run, electric expansion valve 123 opens small guide vane.
Winter, outdoor temperature was generally lower than 7 DEG C, and when the warm water temperature of solar energy portion 110 delivery port is lower than 40 DEG C, control part 130 controls the first switch according to the warm water temperature signal that the first temperature sensing unit 112 transmits and closes, and frequency-changeable compressor 121 starts.
When the warm water temperature of solar energy portion 110 delivery port is between 25 ~ 40 DEG C time, the warm water temperature signal that control part 130 transmits according to the first temperature sensing unit 112 and the ambient temperature signal that the second temperature sensor 126 transmits, control frequency-changeable compressor 121 low-frequency operation, electric expansion valve 123 opens middle aperture.
When the warm water temperature of solar energy portion 110 delivery port is between 15 ~ 25 DEG C, the warm water temperature signal that control part 130 transmits according to the first temperature sensing unit 112 and the ambient temperature signal that the second temperature sensor 126 transmits, control frequency-changeable compressor 121 intermediate frequency to run, electric expansion valve 123 small guide vane.
When the warm water temperature of solar energy portion 110 delivery port is between 5 ~ 15 DEG C, the warm water temperature signal that control part 130 transmits according to the first temperature sensing unit 112 and the ambient temperature signal that the second temperature sensor 126 transmits, control frequency-changeable compressor 121 high frequency to run, electric expansion valve 123 opens small guide vane.
Auxiliary electrical heater portion 140 is for heating heat pump portion 120 hot water out, and auxiliary electrical heater portion 140 comprises: auxiliary electrical heater unit 141, second switch (not shown) and the 3rd temperature sensing unit 142.
3rd temperature sensing unit 142 can gather the hot water temperature of hot water, is arranged on heat pump portion 120 delivery port.
Auxiliary electrical heater unit 141 is arranged on the downstream of the 3rd temperature sensing unit 142, for by from heat pump portion 120, hot water out heats.Hot water temperature's signal closes that second switch transmits according to the 3rd temperature sensing unit 142 and disconnection thus start and stop auxiliary electrical heater unit 141.
When outdoor temperature is too low, from solar energy portion 120, the temperature of water is out low too, and when frequency-changeable compressor 121 high frequency operates, when from heat pump portion 120, hot water temperature out still can not reach 40 DEG C, according to hot water temperature's signal that three-temperature sensor 142 transmits, second switch closes, thus auxiliary electrical heater unit 141 starts, to from heat pump portion 120, hot water out heats.
In addition, the pipeline of all current warps is all coated with heat-insulation layer, thus can reduce the heat loss of hot water.
The effect of embodiment and effect
According to the water heater of the present embodiment, obtain warm water, heat pump portion and warm water is carried out heating because cold water is carried out heating by solar energy portion and obtain hot water and control part and can control heat pump portion and start and stop.When water can not be heated to predetermined temperature by solar energy portion, control part controls heat pump portion and starts, by from solar energy portion out warm water heating, therefore the water temperature reduction that solar water heater too much causes at successive cloudy days or water consumption is solved, the problem that user has a bath can not be met, and water heater of the present invention adopts solar energy and heat pump techniques to be used in conjunction, wherein solar energy belongs to renewable green energy resource, and during heat pump work, itself consume little a part of electric energy, but can from surrounding medium (water, air, soil etc.) in extract and be equivalent to consume electric energy 4-7 energy doubly, thus a large amount of high-grade energy can be saved.
In the present embodiment, owing to also having auxiliary electrical heater portion, when water all can not be heated to predetermined temperature by solar energy portion and heat pump portion, auxiliary electrical heater portion starts, and continues to heat water.
In the present embodiment, due to heat pump, portion is also provided with four-way change-over valve, when after outdoor heat exchanger frosting, outdoor heat exchanger can be heated by switching four-way change-over valve, thus be melted by the frost of outdoor heat exchanger.
In the present embodiment, because the surface coverage of indoor heat exchanger has heat-insulation layer, the heat loss of hot water can therefore be reduced.
Certainly water heater involved in the present invention is not merely defined in structure in the above-described embodiments.Above content be only the present invention conceive under basic explanation, and according to any equivalent transformation that technical scheme of the present invention is done, all should protection scope of the present invention be belonged to.

Claims (5)

1. a water heater, for being heated by cold water, is characterized in that, comprising:
Solar energy portion, comprises: cold water is carried out the first temperature sensing unit heating the solar units obtaining warm water and the warm water temperature gathering described warm water;
Heat pump portion, comprises: cold-producing medium, described refrigerant compression is become the frequency-changeable compressor of high temperature and high pressure steam, regulate the restricting element of described refrigerant flow, control the first switch that described frequency-changeable compressor opens and close, gather the second temperature sensing unit of environment temperature and utilize described high temperature and high pressure steam to be carried out by described warm water heating the heat exchange unit obtaining hot water; And
Control part, according to the closed and disconnected of described first switch of warm water temperature signal control that described first temperature sensing unit transmits, thus control the startup of described frequency-changeable compressor and stop, and control the frequency of described frequency-changeable compressor and the aperture of described restricting element according to the ambient temperature signal of described second temperature sensing unit transmission.
2. water heater according to claim 1, is characterized in that, also comprises:
Auxiliary electrical heater portion, described heat pump portion hot water is out heated, described auxiliary electrical heater portion comprises: gather the 3rd temperature sensing unit of the hot water temperature of hot water, hot water is carried out the auxiliary electrical heater unit heated and the second switch controlling described auxiliary electrical heater unit starting and stopping
Described second switch controls the startup of described auxiliary electrical heater unit according to hot water temperature's signal of described 3rd temperature sensing unit transmission and closes.
3. water heater according to claim 1, is characterized in that:
Wherein, described heat pump portion also comprises four-way change-over valve, and described frequency-changeable compressor is connected with described heat exchange unit by described four-way change-over valve, switches the flow direction that described four-way change-over valve can change described cold-producing medium.
4. water heater according to claim 1, is characterized in that:
Wherein, described heat pump portion also comprises heat-insulation unit, and described heat-insulation unit covers the surface of described indoor heat exchanger.
5. water heater according to claim 1, is characterized in that:
Wherein, described restricting element is electric expansion valve.
CN201510047799.4A 2015-01-30 2015-01-30 Heater Pending CN104676904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510047799.4A CN104676904A (en) 2015-01-30 2015-01-30 Heater

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Application Number Priority Date Filing Date Title
CN201510047799.4A CN104676904A (en) 2015-01-30 2015-01-30 Heater

Publications (1)

Publication Number Publication Date
CN104676904A true CN104676904A (en) 2015-06-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108800269A (en) * 2018-05-28 2018-11-13 海宁欧乐威环境科技有限公司 A kind of Floor Heating System with Air Source Heat Pump
CN109073273A (en) * 2016-04-28 2018-12-21 大金工业株式会社 Hot-water supply system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007127291A (en) * 2005-11-01 2007-05-24 Matsushita Electric Ind Co Ltd Heat utilizing system
CN101957067A (en) * 2010-11-01 2011-01-26 江苏天舒电器有限公司 Frequency conversion control method for heat pump water heater
CN201866847U (en) * 2010-07-09 2011-06-15 山东京普太阳能科技有限公司 Integrated hot water system of solar heat pump
CN202432683U (en) * 2011-12-12 2012-09-12 惠州大华科技有限公司 Air source variable frequency heat pump water heater
CN203274280U (en) * 2013-05-24 2013-11-06 浙江地源能源科技有限公司 Efficient water heater with solar energy integrated with heat pump
CN203629057U (en) * 2013-11-20 2014-06-04 西安大昱光电科技有限公司 Air source heat pump auxiliary solar water heating system
CN103968440A (en) * 2013-02-01 2014-08-06 珠海格力电器股份有限公司 Multi-heat-source hot water system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007127291A (en) * 2005-11-01 2007-05-24 Matsushita Electric Ind Co Ltd Heat utilizing system
CN201866847U (en) * 2010-07-09 2011-06-15 山东京普太阳能科技有限公司 Integrated hot water system of solar heat pump
CN101957067A (en) * 2010-11-01 2011-01-26 江苏天舒电器有限公司 Frequency conversion control method for heat pump water heater
CN202432683U (en) * 2011-12-12 2012-09-12 惠州大华科技有限公司 Air source variable frequency heat pump water heater
CN103968440A (en) * 2013-02-01 2014-08-06 珠海格力电器股份有限公司 Multi-heat-source hot water system
CN203274280U (en) * 2013-05-24 2013-11-06 浙江地源能源科技有限公司 Efficient water heater with solar energy integrated with heat pump
CN203629057U (en) * 2013-11-20 2014-06-04 西安大昱光电科技有限公司 Air source heat pump auxiliary solar water heating system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109073273A (en) * 2016-04-28 2018-12-21 大金工业株式会社 Hot-water supply system
CN109073273B (en) * 2016-04-28 2022-12-20 大金工业株式会社 Hot water supply system
CN108800269A (en) * 2018-05-28 2018-11-13 海宁欧乐威环境科技有限公司 A kind of Floor Heating System with Air Source Heat Pump

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Application publication date: 20150603