CN102679434A - Solar phase change heat storage and capillary network radiation heating system - Google Patents
Solar phase change heat storage and capillary network radiation heating system Download PDFInfo
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- CN102679434A CN102679434A CN2012100194633A CN201210019463A CN102679434A CN 102679434 A CN102679434 A CN 102679434A CN 2012100194633 A CN2012100194633 A CN 2012100194633A CN 201210019463 A CN201210019463 A CN 201210019463A CN 102679434 A CN102679434 A CN 102679434A
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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
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Abstract
The invention belongs to the field of application of heating ventilation air conditioning technologies, relates to an indoor thermal comfort regulating and system energy saving process and particularly relates to a solar phase change heat storage and capillary network radiation heating system. The solar phase change heat storage and capillary network radiation heating system consists of a solar heat collecting module (I), a phase change heat storage module (II), a capillary network radiation heating module (III) and other auxiliary devices, wherein the solar heat collecting module (I) includes a solar heat collector (1); the phase change heat storage module (II) includes a phase change heat storage and release device (2); the capillary network radiation heating module (III) includes a capillary network low-temperature radiation heating network (7); and other auxiliary devices comprise an auxiliary heater box (6), a heat-insulating water storage tank (8), a circulating water pump (9), a pipeline tee joint (10), a pipeline tee joint (14), a pipeline tee joint (15), a cut-off valve (3), a cut-off valve (4), a cut-off valve (5), a cut-off valve (11), a cut-off valve (12), a cut-off valve (13) and the like; and the functions of saving energy and raising the thermal comfort of an indoor environment are achieved by fully utilizing solar resources.
Description
Technical field
The invention belongs to the HVAC technical applications, relate to indoor hot comfort and regulate and the energy saving of system process particularly a kind of solar heat-preservation and capillary network panel type heating system.
Background technology
Energy shortage and environmental pollution are the matters of utmost importance of 21st century face of mankind; Greatly developing energy-conserving and emission-cutting technology in each field, seek the only way that the alternative day by day exhausted traditional fossil energy of clean reproducible energy is considered to Future Social Development, also is one of technique direction of giving priority in the National Program for Medium-to Long-term Scientific and Technological Development.This has comprised two layers of meaning, and the one, the power-saving technology and the system of development traditional energy, the 2nd, seek new forms of energy and make full use of regenerative resource.Building energy consumption is the important component part of entire society's energy consumption link, and is that the energy consumption of representative accounts for about 50% of building total energy consumption with the heating air conditioning.Heating equipment not only consumes fossil energies such as a large amount of coal, natural gas, fuel oil every year, and can produce serious environmental pollution and the concentrated problem that exceeds standard of carbon emission.The development energy-saving building technology is to the energy resource consumption that reduces entire society and reduce carbon emission gentle to separate environmental pollution pressure most important.The means of development building energy conservation are started with from two aspects equally; The one, development reduces the method for the consumption (like wall thermal insulating, glass heat-proof, building structure rationally etc.) of the energy, and two are to use regenerative resource and reduce the consumption (like solar energy utilization, earth source heat pump, water resource heat pump, air source heat pump etc.) to traditional fossil energy.
The north China solar radiation distributes very abundant.With Xi'an is example, and Xi'an is in the south of cold district in thermal technology's subregion, the coldest monthly mean temperature 0～-10 ℃, and the heating phase has four months, and the energy consumption that heating consumed accounts for 50% of whole building energy consumption.Per day total radiation between heating period can reach 5-10MJ/m
2, solar energy has important value.Yet solar energy is a kind of unsettled energy, in use receives factor affecting such as season, meteorology, region bigger, especially night, sufficient with lasting energy supply can't be provided.The biggest obstacle of solar energy scale heat utilization at present is that obtaining of solar energy is limited by climatic factor, and can not round-the-clock stable heating.The phase-transition heat-storage of solar heat-preservation techniques make use heat-storing material can effectively reduce the required volume of energy accumulation, can realize fully utilizing with continual and steady of solar energy, is the good approach that addresses this problem.
Capillary network radiation refrigeration technology has progressively obtained application in high-end residential and public building; And be about to become one of the important way of summer cooling and direction of development, and the idle investment that also can bring problems and increase air-conditioning system greatly of capillary network in the winter time.Low-temp radiation heating technological borrowing radiation cooling technology and floor heating technology; With surface or the dark plastic material capillary network that applies is the radiation end equipment; Rely on capillary network that bigger radiation heat transfer area and uniform wall surface temperature is provided, reach the comfortable heating effect of no blowing feeling.Another distinguishing feature of capillary network is that pipeline medium flow velocity is low, and the heat transfer temperature difference of import and export is less, generally has only 2-4 ℃; According to China's heating design standard; Winter, the indoor heating design temperature was 18-20 ℃, and therefore, the temperature of heating medium can be between 30-35 ℃ in the capillary network; Greatly reduce requirement, for the utilization of low-grade energy provides feasibility to the heating medium temperature.
To above present situation; The present invention proposes the design of heating system mode that the solar heat-preservation system combines with the terminal low-temp radiation heating of capillary network system; Through heat storage technology solar energy is made full use of and stores on the one hand; Effectively utilize this renewable and clean energy resource of solar energy, realize the heating requirement of round-the-clock ground; On the other hand, in conjunction with the little heat transfer temperature difference in the capillary network low-temp radiation heating, improve the whole system energy utilization rate.
Patent " utilizing the capillary network heat pump of solar energy " (number of patent application: 201010509782.3) disclose a kind of capillary network heat pump that utilizes solar energy; Be applicable to central air conditioner system; This system utilizes heat pump to improve water when climatic environment is abominable in the winter time temperature (28-32 ℃) is delivered to the capillary network system; This system receives climatic influences easily, and source pump can be affected in lower its efficient of area of northern environment temperature.Patent " the compound hot water heating refrigerating plant of solar energy, heat pump and capillary network " (number of patent application: 201010611919.6; Utility application number: 201020687271.6) disclose the compound hot water heating refrigerating plant of a kind of solar energy, heat pump and capillary network; This device adopts heat storage water tank to store the energy of solar energy, when water tank temperature is not enough, utilizes water resource heat pump to promote the temperature of water tank; This device belongs to the sensible heat storage for the storage of solar energy; The volume of heat storage water tank is bigger, can cause system huge, should not effectively promote.Patent " utilizing the indoor geothermal heating structure of capillary network and phase change heat storage material " (number of patent application: 201110190676.8) disclose a kind of indoor geothermal heating structure of utilizing capillary network and phase change heat storage material; This structure is laid on phase change heat storage material and capillary network equipment under the user floor, and it is expanding with heat and contract with cold to the destruction on user floor and the inconvenient maintenance of bringing of heat-storing material that this structure is laid on the potential hazard that is brought under the user floor with phase change heat storage material.201120081136.1), patent " a kind of energy-saving comfortable air-conditioning system and method for work thereof " (number of patent application: 201110160980.8) and patent " capillary network terminal water resource heat pump central air conditioner system " (number of patent application: 201010509781.9 patent " a kind of independent new forms of energy building energy conservation integral system " (number of patent application:; Utility model application number: 201020564714.2) all proposed the heating system that earth source heat pump or water source heat pump system cooperate with solar energy, capillary network system; Though this frame mode has also utilized solar energy; Come makeup energy but still must open heat pump, and systematic comparison is complicated in the time period at night.Patent " a kind of novel earth source heat pump capillary top board air-conditioning system " (number of patent application: 200920350744.0) announced a kind of novel earth source heat pump capillary top board air-conditioning system based on solution dehumidification; This system directly utilizes earth source heat pump to be thermal source, does not use this clean energy resource of solar energy.
In order effectively to utilize this clean energy resource of solar energy, increase the hot comfort of indoor environment, must obtain from energy elementary, the intermediate storage of energy and the end of energy use three links to solve.
Summary of the invention
The present invention is directed in order effectively to utilize this clean energy resource of solar energy, from energy elementary obtain, the intermediate storage of energy and the end of energy use three links to design.And make full use of the less demanding this advantage of capillary network low temperature radiation heating to heat source temperature, and make full use of solar energy resources, realize function energy-conservation and raising indoor environment hot comfort.
A kind of solar energy phase transition heat accumulation and capillary network panel type heating system, this system is made up of solar energy heat collecting module I, phase-transition heat-storage module ii, capillary network radiant heating module ii I and other auxiliary equipment.Said solar energy heat collecting module I contains solar thermal collector 1; Said phase-transition heat-storage module ii contains phase-transition heat-storage, phase transformation radiator 2; Said capillary network radiant heating module ii I contains capillary network low-temp radiation heating network 7; Said other auxiliary equipment comprise auxiliary heater case 6, heat preservation storage water tank 8, water circulating pump 9, pipeline threeway 10,14,15, stop valve 3,4,5,11,12,13 etc.
Under solar radiation on the daytime adequate condition, system can heat and heat accumulation function, and the switch situation of stop valve is: stop valve 3,4,12,13 is opened, and stop valve 11,5 is closed; Auxiliary heater 6 is not opened.Concrete flow process is: the hot water of solar thermal collector 1 outlet gets into threeway 15; The stop valve 4 of leading up to gets into auxiliary heater 6; Get into capillary network low-temp radiation heating network 7 then and carry out getting into heat preservation storage water tank 8 after the low-temp radiating heat exchange, get into threeway 10 through water circulating pump 9 backs then, get into stop valve 12 again; Get back in the solar thermal collector 1 after flowing into threeway 14, realize the function that heats daytime.Another road gets in phase-transition heat-storage, the phase transformation radiator 2 through stop valve 3 backs carries out accumulation of heat, gets into stop valve 13 after the completion accumulation of heat and flows into threeways 14, returns in the solar thermal collector 1, realizes heat accumulation function.
If do not need heating daytime, when only carrying out heat accumulation function, stop valve 4,12 is closed, and other flow processs are identical with above-mentioned flow process.
Night, stop valve 3,4,12,13 was closed when heating, and stop valve 11,5 is opened.Concrete flow process is: the water from heat preservation storage water tank 8 gets into threeway 10 through water circulating pump 9 backs; Get into stop valve 11 again; Get into and carry out the heat exchange intensification in phase-transition heat-storage, the phase transformation radiator 2; Flow through stop valve 5 then and get in the auxiliary heater 6, get into capillary network low-temp radiation heating network 7 then and carry out getting into heat preservation storage water tank 8 after the heat exchange, accomplish the heating function at night.
If daytime, solar radiation was in poor shape, when system fails to accomplish enough accumulation of heats, opens auxiliary heater 6 when heat night and carry out the assistant heating heating.Its flow process is identical with the flow process of heating at night.
Wherein, phase-transition heat-storage, phase transformation radiator 2 adopt hot-water line and the staggered mode of cold water pipe to be distributed in phase-transition heat-storage, the phase transformation radiator 2.
The present invention utilizes existing ripe solar water heater technology; Under existing solar energy heating actuator temperature; Utilize the low-temp radiating characteristic of phase-transition heat-storage technology and capillary network to realize the cascade utilization of low-grade heat source and the secondary distribution of energy, improve the utilization ratio of heat.
Description of drawings
Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are done further explain:
Fig. 1 is a structure principle chart of the present invention.
Among the figure: 1, solar thermal collector; 2, phase transformation radiator; 3,4,5,11,12,13, stop valve; 6, auxiliary heater; 7, heating network; 8, heat preservation storage water tank; 9, water circulating pump; 10,14,15 threeways.
The specific embodiment
With reference to Fig. 1, principle of the present invention is:
Under solar radiation on the daytime adequate condition, system can heat and heat accumulation function, and the switch situation of stop valve is: stop valve 3,4,12,13 is opened, and stop valve 11,5 is closed; Auxiliary heater 6 is not opened.Concrete flow process is: the hot water of solar thermal collector 1 outlet gets into threeway 15; The stop valve 4 of leading up to gets into auxiliary heater 6; Get into capillary network low-temp radiation heating network 7 then and carry out getting into heat preservation storage water tank 8 after the low-temp radiating heat exchange, get into threeway 10 through water circulating pump 9 backs then, get into stop valve 12 again; Get back in the solar thermal collector 1 after flowing into threeway 14, realize the function that heats daytime.Another road gets in phase-transition heat-storage, the phase transformation radiator 2 through stop valve 3 backs carries out accumulation of heat, gets into stop valve 13 after the completion accumulation of heat and flows into threeways 14, returns in the solar thermal collector 1, realizes heat accumulation function.
If do not need heating daytime, when only carrying out heat accumulation function, stop valve 4,12 is closed, and other flow processs are identical with above-mentioned flow process.
Night, stop valve 3,4,12,13 was closed when heating, and stop valve 11,5 is opened.Concrete flow process is: the water from heat preservation storage water tank 8 gets into threeway 10 through water circulating pump 9 backs; Get into stop valve 11 again; Get into and carry out the heat exchange intensification in phase-transition heat-storage, the phase transformation radiator 2; Flow through stop valve 5 then and get in the auxiliary heater 6, get into capillary network low-temp radiation heating network 7 then and carry out getting into heat preservation storage water tank 8 after the heat exchange, accomplish the heating function at night.
If daytime, solar radiation was in poor shape, when system fails to accomplish enough accumulation of heats, opens auxiliary heater 6 when heat night and carry out the assistant heating heating.Its flow process is identical with the flow process of heating at night.
Wherein, phase-transition heat-storage, phase transformation radiator 2 adopt hot-water line and the staggered mode of cold water pipe to be distributed in phase-transition heat-storage, the phase transformation radiator 2, and purpose is in order to improve heat exchange efficiency.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention; When the method for above-mentioned announcement capable of using and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from technical scheme of the present invention, to any simple modification, equivalent variations and modification that above embodiment did, still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (2)
1. solar energy phase transition heat accumulation and capillary network panel type heating system, it is characterized in that: this system is made up of solar energy heat collecting module (I), phase-transition heat-storage module (II), capillary network radiant heating module (III) and other auxiliary equipment; Said solar energy heat collecting module (I) contains solar thermal collector (1); Said phase-transition heat-storage module (II) contains phase-transition heat-storage, phase transformation radiator (2); Said capillary network radiant heating module (III) contains capillary network low-temp radiation heating network (7); Said other auxiliary equipment comprise auxiliary heater case (6), heat preservation storage water tank (8), water circulating pump (9), pipeline threeway (10), (14), (15), stop valve (3), (4), (5), (11), (12), (13) etc.;
Under solar radiation on the daytime adequate condition, system can heat and heat accumulation function, and the switch situation of stop valve is: open stop valve (3), (4), (12), (13), and stop valve (11), (5) are closed; Auxiliary heater (6) is not opened; Concrete flow process is: the hot water of solar thermal collector (1) outlet gets into threeway (15); The stop valve (4) of leading up to gets into auxiliary heater (6); Get into capillary network low-temp radiation heating network (7) then and carry out getting into heat preservation storage water tank (8) after the low-temp radiating heat exchange, pass through water circulating pump (9) back then and get into threeway (10), get into stop valve (12) again; Get back in the solar thermal collector (1) after flowing into threeway (14), realize the function that heats daytime; Lead up to that stop valve (3) back gets into phase-transition heat-storage, the phase transformation radiator carries out accumulation of heat in (2), accomplish getting into stop valve (13) after the accumulation of heat and flow into threeway (14), return in the solar thermal collector (1), realize heat accumulation function;
If do not need heating daytime, when only carrying out heat accumulation function, stop valve (4), (12) are closed, and other flow processs are identical with above-mentioned flow process;
Night, stop valve (3), (4), (12), (13) were closed when heating, and open stop valve (11), (5); Concrete flow process is: the water from heat preservation storage water tank (8) gets into threeway (10) through water circulating pump (9) back; Get into stop valve (11) again; Get into and carry out the heat exchange intensification in phase-transition heat-storage, the phase transformation radiator (2); Flow through stop valve (5) then and get in the auxiliary heater (6), get into capillary network low-temp radiation heating network (7) then and carry out getting into heat preservation storage water tank (8) after the heat exchange, accomplish the heating function at night;
If daytime, solar radiation was in poor shape, when system fails to accomplish enough accumulation of heats, opens auxiliary heater (6) when heat night and carry out the assistant heating heating; Its flow process is identical with the flow process of heating at night.
2. a kind of solar energy phase transition heat accumulation according to claim 1 and capillary network panel type heating system is characterized in that: phase-transition heat-storage, phase transformation radiator (2) adopt hot-water line and the staggered mode of cold water pipe to be distributed in phase-transition heat-storage, the phase transformation radiator (2).
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| CN103216895A (en) * | 2013-04-17 | 2013-07-24 | 华北科技学院 | Air source heat pump assisted solar comprehensive heating and air-conditioning system |
| CN103453581A (en) * | 2013-09-06 | 2013-12-18 | 程宁 | Heat supply switching control device for solar heating system |
| CN103712255A (en) * | 2014-01-20 | 2014-04-09 | 华北电力大学 | Seasonal solar energy-phase change energy accumulation graded energy-releasing heating system and method |
| CN103925635A (en) * | 2014-04-28 | 2014-07-16 | 中国建筑西北设计研究院有限公司 | All-weather solar energy supply system |
| CN103953987A (en) * | 2014-04-28 | 2014-07-30 | 西安交通大学 | Solar solid humidity-adjusting system in winter and summer |
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