WO2011142531A2 - 태양열 시스템 - Google Patents
태양열 시스템 Download PDFInfo
- Publication number
- WO2011142531A2 WO2011142531A2 PCT/KR2011/001906 KR2011001906W WO2011142531A2 WO 2011142531 A2 WO2011142531 A2 WO 2011142531A2 KR 2011001906 W KR2011001906 W KR 2011001906W WO 2011142531 A2 WO2011142531 A2 WO 2011142531A2
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- WIPO (PCT)
- Prior art keywords
- heat
- heat storage
- heating
- hot water
- storage tank
- Prior art date
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- 238000005338 heat storage Methods 0.000 claims abstract description 119
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 238000010438 heat treatment Methods 0.000 claims abstract description 80
- 239000008236 heating water Substances 0.000 claims description 37
- 239000002609 medium Substances 0.000 claims description 26
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 239000012913 medium supplement Substances 0.000 claims description 6
- 239000013589 supplement Substances 0.000 claims description 2
- 230000001404 mediated effect Effects 0.000 claims 1
- 230000001502 supplementing effect Effects 0.000 abstract description 3
- 230000001172 regenerating effect Effects 0.000 abstract 6
- 230000007812 deficiency Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 238000013517 stratification Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/40—Arrangements for controlling solar heat collectors responsive to temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
- F24D11/004—Central heating systems using heat accumulated in storage masses water heating system with conventional supplementary heat source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/174—Supplying heated water with desired temperature or desired range of temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/223—Temperature of the water in the water storage tank
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/242—Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/246—Water level
- F24H15/248—Water level of water storage tanks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/25—Temperature of the heat-generating means in the heater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/335—Control of pumps, e.g. on-off control
- F24H15/34—Control of the speed of pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/395—Information to users, e.g. alarms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/30—Solar heat collectors using working fluids with means for exchanging heat between two or more working fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/0036—Domestic hot-water supply systems with combination of different kinds of heating means
- F24D17/0063—Domestic hot-water supply systems with combination of different kinds of heating means solar energy and conventional heaters
- F24D17/0068—Domestic hot-water supply systems with combination of different kinds of heating means solar energy and conventional heaters with accumulation of the heated water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/02—Photovoltaic energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/14—Solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/025—Check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/0278—Expansion vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/046—Pressure sensors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/048—Level sensors, e.g. water level sensors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/06—Heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2240/00—Characterizing positions, e.g. of sensors, inlets, outlets
- F24D2240/26—Vertically distributed at fixed positions, e.g. multiple sensors distributed over the height of a tank, or a vertical inlet distribution pipe having a plurality of orifices
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
- Y02E10/44—Heat exchange systems
Definitions
- the present invention relates to a solar system, and more particularly, to a solar system that improves system utilization efficiency, makes it possible to quickly use heat obtained from a heat collecting unit for heating and hot water loads, and enables stable system driving.
- the solar system is composed of a heat collecting portion, a heat storage portion, a utilization portion, the heat collected from the heat collection portion is a heat storage unit to the heat storage unit by a heat exchanger, and the heat accumulated in the use portion as a heating and hot water supply source.
- the auxiliary boiler may heat the water in the heat storage tank, and since heat exchange with the collector is heated under the heat storage tank, the water is sequentially heated. As a result of the slow speed, the overall system efficiency was low.
- the present invention has been invented to improve the above problems, by comparing the heating water temperature before and after the heating load is carried out to control the flow rate of the heating circulation flow rate to lower the heating return temperature as possible, inflow into the heat storage tank according to the heating return temperature
- the purpose of the present invention is to provide a solar system that can maximize the use of heating heat sources of heat accumulated by varying the formation of flow paths, thereby improving the system utilization efficiency.
- the present invention increases the heat medium temperature by controlling the flow rate of the heat collector circulation flow rate, and by forming a flow path for heat exchange with the heat medium in the bottom and the top of the heat storage tank, it is possible to quickly use the heat obtained from the heat collecting portion for heating and hot water load
- Another purpose is to provide a solar system that has been adapted.
- the present invention by installing a pressure sensor in the heat collecting unit and a check valve in the heat medium supplement water tank to inform the alarm of automatic heating and leakage of heat medium at a certain pressure or less, and install a low water level sensor in the heat medium supplement water tank By supplementing, it can prevent operation error, install a bypass line with mixing valve at hot water outlet and water inlet to supply hot water of proper temperature, and alarm when the temperature of upper storage tank is over a certain temperature.
- PV photovoltaic
- a solar collector which absorbs solar heat and heats the heat medium housed therein;
- the heat storage tank accommodates the heating water and is provided with a first heat storage heat exchanger and a second heat storage heat exchanger respectively connected to the solar heat collector via a heat storage pipe via the heat storage pipe, and have a diffuser configured to diffuse the heating water return therein. ;
- a circulation pump connected to the heat storage pipe and circulating the pressure sensor and the heat medium for sensing the pressure in the heat storage pipe;
- a heat medium supplement water tank connected through a pressure pump to supplement the heat medium lacking in the heat storage pipe;
- An auxiliary boiler having a heating export port connected to a heating water supply pipe of the heat storage tank via a three-way valve for heating water supply control, and a heating return port connected to a diffuser of the heat storage tank via a three-way valve for heating water return control;
- a check valve connected between the three-way valve for controlling the heating water supply and the heating return port of the auxiliary boiler;
- a heating load connected to the heating outlet of the auxiliary boiler and the three-way valve for controlling the return and return of heating.
- the diffuser is respectively installed in the middle and the bottom of the heat storage tank, the diffuser is installed in the middle and the bottom is respectively connected to the different outlet of the three-way valve inlet is connected to the heating return pipe, the three-way valve
- the temperature of the heat storage tank and the temperature of the heating return is compared is characterized in that the opening is controlled to be introduced into a portion higher than the heating return.
- a heat storage tank hot water heat exchanger in which a direct pipe is connected to an inlet is installed inside, and a hot water pipe connected to an outlet of the heat storage tank hot water heat exchanger is connected to a mixing valve via a hot water heat exchanger of the auxiliary boiler.
- One side of the mixing valve is connected to the water pipe, while a temperature sensor is installed at each of the hot water inlet side, the outlet side, and the water inlet side of the mixing valve, and the mixing valve senses the temperature sensor installed at the inlet and outlet of the mixing valve. Characterized in that the outlet water temperature is controlled based on the temperature.
- the upper temperature sensor, the middle temperature sensor and the lower temperature sensor for sensing the temperature at each position in the upper, middle and lower portions of the heat storage tank are installed, respectively, the inlet position of the heating return and the heat medium inlet position of the heat collecting pipe Characterized in that made to control.
- the radiator is connected to the upper side of the heat storage tank through a heat dissipation pipe so as to circulate the heat of the heating water in the heat storage tank to the outside, and a one-way valve and a circulation pump are connected to one end of the heat dissipation pipe, It is characterized in that the generator is connected to be driven by the power supplied from the solar generator.
- the present invention can reduce the heating return as much as possible through the control of the flow rate of the heating circulation flow, maximize the use of the heat source of heat accumulated heat, and have a quick response according to the heating and hot water load, thereby greatly improving the system efficiency.
- it can detect the lack of heat medium to notify the user to replenish, it can not only maintain the hot water temperature constant, but also reduce the power consumption and minimize the operation of the auxiliary boiler.
- FIG. 1 is a view showing an overall schematic diagram of a solar system according to the present invention
- FIG. 2 is a diagram showing a schematic diagram of a solar heat collecting system in FIG. 1;
- FIG. 3 is a diagram showing a schematic diagram of a solar heating system in FIG. 1;
- FIG. 4 is a diagram illustrating a system of a solar hot water supply system in FIG. 1.
- FIG. 1 is a view showing the overall schematic diagram of a solar system according to an embodiment of the present invention
- the present invention is a solar collector 10, the heat absorbed by the solar collector 10 is largely absorbed by the solar energy and converted to heat
- Heat medium supplement water tank (50) for replenishing the heat medium lacking in the heat storage pipe of the mixing valve (60) for supplying hot water at the set temperature, radiator for heat dissipation when the heat storage temperature of the heat storage tank 20 is above the set temperature ( 70) and a solar generator 80 that converts sunlight into electrical energy to supply driving power of the radiator 70.
- FIG. 2 shows a schematic diagram of a solar heat collecting system in FIG. 1.
- the first and second heat storage heat exchangers are installed between the heat collecting pipe 11 installed at the heat medium outlet side of the solar heat collector 10 installed outside the building and collecting the solar heat and the heat collecting pipe 12 installed at the heat medium inlet side.
- 21 and 22 are connected in series, wherein the first heat storage heat exchanger 21 is installed at the top in the heat storage tank 20 and the second heat storage heat exchanger 22 is installed at the bottom in the heat storage tank 20. have.
- the heat medium heated in the solar heat collector 10 is circulated to the first and second heat storage heat exchangers 21 and 22, whereby the heating water accommodated in the heat storage tank 20 is first and second heat storage. Heat exchange occurs in the heat exchangers 21 and 22 to be heated.
- a three-way valve (V1) is connected to the heat collecting pipe (11) connecting the solar heat collector (10) and the first heat storage heat exchanger (21) installed on the heat storage tank (20), and the three-way valve (V1). ) Forms the flow path of the heat collecting pipe 11 as the second heat storage heat exchanger 22 via the first heat storage heat exchanger 21 or the second heat storage heat exchanger 22 without passing through the first heat storage heat exchanger 21. It changes to form immediately. Accordingly, the heat medium flowing through the heat collecting pipe 11 in the solar heat collector 10 is circulated to the solar heat collector 10 through the first and second heat storage heat exchangers 21 and 22 or the first heat storage heat exchanger 21. After passing through the second heat storage heat exchanger 22 without passing through) may be circulated to the solar heat collector (10).
- the heat storage amount of the heat storage tank 20 is almost exhausted, that is, when the water temperature detected by the upper temperature sensor TC4 is below a predetermined temperature.
- the response speed to the demand of calories becomes faster.
- a temperature sensor TC1 for measuring the temperature of the solar collector 10 is connected to the heat collecting pipe 11, and a pressure sensor 13 for detecting the pressure in the heat collecting pipe 12 is connected to the heat collecting pipe 12.
- the circulation pump 14 for circulating the heat medium between the solar collector 10 and the heat storage tank 20 through the heat collecting pipes 11 and 12 is connected.
- the pressure sensor 13 is a controller for controlling the overall operation of the solar system by sensing the pressure in the heat collecting pipe 12 in order to prevent the pressure is higher than the set value when the temperature of the heat medium in the heat collecting pipe 12 is excessively increased ( (Not shown).
- the controller determines the amount of heat acquired by the solar collector 10 through the temperature sensor TC1, and when the amount of heat gained is large, increases the rotational speed of the circulation pump 14 to increase the flow rate, thereby increasing the heat storage heat amount, and the amount of heat gained.
- the rotation speed of the circulation pump 14 is reduced to reduce the flow rate, thereby preventing frequent on / off of the circulation pump 14, thereby increasing the water resistance of the circulation pump 14 and reducing power consumption.
- one end of the heat collecting pipe 12 is connected to the heat medium supplement water tank 50 for supplementing the heat medium circulating through the heat collecting pipe 12 through the pressure pump 15.
- the low water level sensor 51 is installed in the heat medium replenishing water tank 50 to transmit a detected signal to the controller, and the controller responds to the low water level detection signal received from the heat medium refilling water tank 50. Use to inform the user.
- an upper temperature sensor TC2, a middle temperature sensor TC3, and a lower temperature sensor TC4 are installed at upper, middle, and lower portions of the heat storage tank 20, respectively, and the heating water temperature in the heat storage tank 20 at each position. It is configured to detect and deliver to the controller.
- the radiator 70 is connected to the upper side of the heat storage tank 20 via a heat dissipation pipe, and a two-way valve 71 and a circulation pump 72 are connected to the middle of the heat dissipation pipe.
- the radiator 70 is connected to the solar generator 80 is configured to be driven by the power supplied from the photovoltaic generator 80, not commercial power.
- the controller when the upper temperature of the heat storage tank 20 is higher than a predetermined temperature by the upper temperature sensor TC2, the controller operates an alarm means and operates the radiator 70 and the circulation pump 72 installed on the heat storage tank 20. It is intended to dissipate the accumulated heat.
- the radiator 70 and the circulation pump 72 are configured to be driven by the power supplied from the photovoltaic generator 80 so as to reduce power costs without using commercial power.
- FIG. 3 shows a schematic diagram of a solar heating system in FIG. 1.
- a heating water supply pipe 41 is connected to an outlet side installed at an upper side of the heat storage tank 20, and the auxiliary boiler 30 is connected to the heating water supply pipe 41 through a three-way valve V4 for heating water supply control.
- the heating outlet of the connection is connected and one end of the heating load 40 is connected.
- the heating return pipe 42 of the auxiliary boiler 30 and the other end of the heating load 40 are connected to the heating return pipe 42 via a three-way valve V3, and the three-way valve for controlling the heating return water return V3.
- Heating return pipe 42 connected to the other end of the) is connected to the diffuser 23, 24 installed in the heat storage tank (20).
- the diffusers 23 and 24 are configured to rapidly heat exchange by spraying the returned water into the heat storage tank 20 so as to rapidly diffuse, and as shown, the diffuser 23 is a central portion of the heat storage tank 20. And the diffuser 24 may be installed in the lower portion of the heat storage tank 20, in this case the heating water returned through the heating return pipe 42 through the three-way valve (V2) according to the temperature of the central diffuser The flow path can be changed to be supplied to 23 or the lower diffuser 24.
- One end of the heating water supply pipe 41 or the heating return pipe 42 is provided with a circulation pump 44 for circulating the heating water.
- a circulation pump 44 for circulating the heating water.
- an example installed in the heating return pipe 42 is shown.
- the heating flow path according to the temperature difference between the temperature in the heat storage tank and the heating return in the heating system system having such a structure will be described.
- the controller determines that the temperature detected by each of the temperature sensors TC2 to TC4 in the heat storage tank 20 is higher than the heating temperature set by the user
- the three-way valve V4 is configured to heat the heating load 40 in the heat storage tank 20. While the flow path is controlled to be formed in the) direction, the three-way valve V3 is controlled to form the flow path in the direction of the heat storage tank 20 in the heating load 40. Accordingly, the heating water discharged through the heating water supply pipe 41 of the heat storage tank 20 is directly returned to the heat storage tank 20 via the heating load 40 and is heat exchanged again, and the circulation operation is repeated.
- the controller determines that the lower floor temperature is lower than the heating temperature set by the user and the upper floor temperature is higher than the heating temperature set by the user from the temperature detected by the temperature sensors TC2 to TC4 in the heat storage tank 20.
- Three-way valve (V4) is controlled to form a flow path in the direction of the heating load 40 in the heat storage tank 20, while the three-way valve (V3) is controlled to form a flow path in the direction of the heat storage tank 20 in the heating load 40.
- the three-way valve (V2) is controlled so that the flow path is formed in the direction of the central diffuser (23) from the three-way valve (V3). Accordingly, the heating water discharged through the heating water supply pipe 41 of the heat storage tank 20 is returned to the central position of the heat storage tank 20 through the heating load 40 and is heat exchanged again.
- the controller determines that the temperature detected by each of the temperature sensors TC2 to TC4 in the heat storage tank 20 is lower than the heating temperature set by the user
- the three-way valve V4 flows through the heat storage tank 20. While the flow path is controlled to be formed in the blocking direction, the three-way valve V3 is controlled to form the flow path in the direction of the auxiliary heat exchanger 30 from the heating load 40. Accordingly, the heating water heated by the heat exchange in the subsidiary heat exchanger 30 is returned to the subsidiary heat exchanger 30 through the heating load 40 again, and the circulation operation of the heat exchanged and discharged is repeated.
- the heat storage tank 20 has a higher stratification of the upper water layer and a lower stratification in the inner water temperature.
- the temperature passing through the heating load 40 and being returned and the temperature according to the height of the heat storage tank 20 are compared with each other.
- the internal heat amount of the heat storage tank 20 may be maximally utilized.
- the controller compares the heating water temperature before and after the heating load 40 through temperature sensors TC8 and TC9 installed at the front and rear ends of the heating load 40 to control the flow rate of the heating circulation flow rate, that is, the circulation pump operation accuracy (RPM). ).
- a check valve 43 is connected between the other flow path hole of the heating water supply control three-way valve V4 and the heating return port of the auxiliary boiler 30.
- the check valve 43 is supplied from the heat storage tank 20 to the auxiliary boiler 30 as needed by the heating water supplied through the heating water supply pipe 41 to enable heat exchange, but at this time, the heating load 40 and heating It is for preventing the heating water returned to the auxiliary boiler 30 through the three-way valve (V3) for receiving water to be introduced into the heating water supply pipe (41).
- FIG. 4 shows a system diagram of a solar hot water supply system in FIG. 1.
- the heat storage tank 20 has a heat storage tank hot water heat exchanger 25 in which a direct pipe 61 is connected to an inlet, and the other end of the hot water pipe 62 having one end connected to an outlet of the heat storage tank hot water heat exchanger 25.
- the mixing valve 60 is connected through a hot water heat exchanger 32 installed in the auxiliary boiler 30.
- the water pipe 61 is directly connected to the other side of the mixing valve 60 while the hot water valve 63 is connected to the other side.
- temperature sensors TC5, TC6, and TC7 are respectively installed at the hot water inlet side, the outlet side, and the direct water inlet side of the mixing valve 60 to sense the temperature of the hot water and the direct water at each position.
- the controller controls the opening degree of the mixing valve 60 by comparing the detected temperature of the temperature sensors TC5, TC6 and TC7 with the hot water temperature set by the user. That is, the mixing valve 60 adjusts the amount of hot water introduced through the hot water pipe 62 and the amount of direct water flowing through the direct water pipe 61 to supply hot water at a temperature set by the user. As a result, unexpected hot water discharge may be prevented to prevent burns.
- the direct water pipe 61 is always in an open state.
- the hot water heated in the heat storage tank 20 or the auxiliary boiler 30 receives hot water through the hot water pipe 62. It is supplied to the valve 63 and is discharged by the pressure of the direct water flowing through the straight pipe 61.
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Abstract
Description
Claims (7)
- 태양열을 흡수하여 내부에 수용된 열매체를 가열하는 태양열집열기;난방수가 수용됨과 아울러, 상기 태양열집열기에 축열배관을 매개로 연결되는 제1 축열 열교환기와 제2 축열 열교환기가 내측의 상부와 하부에 각각 설치되고, 난방환수를 내측에 확산시키는 디퓨저를 구비하고 있는 축열조;상기 축열배관에 연결되어 축열배관내의 압력을 감지하는 압력센서와 열매체를 압송하여 순환시키는 순환펌프;상기 축열배관에 부족한 열매체를 보충하기 위해 가압펌프를 매개로 연결된 열매체 보충수탱크;상기 축열조의 난방수공급배관에 난방수공급제어용 삼방향밸브를 매개로 난방수출구가 연결되고 상기 축열조의 디퓨저에 난방수환수제어용 삼방향밸브를 매개로 난방환수구가 연결되는 보조보일러;상기 난방수공급제어용 삼방향밸브와 상기 보조보일러의 난방환수구 사이에 연결되는 체크밸브;상기 보조보일러의 난방수출구와 상기 난방수환수제어용 삼방향밸브에 연결되는 난방부하;를 포함하여 이루어진 태양열 시스템.
- 제1항에 있어서, 디퓨저는 축열조의 중부와 하부에 각각 설치되고, 상기 중부 및 하부에 설치되는 디퓨저는 유입구가 난방환수배관에 연결되어 있는 삼방향밸브의 서로 다른 출구에 각각 연결되어, 상기 삼방향밸브는 축열조의 높이별 온도와 난방환수의 온도가 비교되어 난방환수보다 높은 부위로 유입되도록 유로가 제어되는 것을 특징으로 하는 태양열 시스템.
- 제1항 또는 제2항에 있어서, 상기 축열조에는 직수관이 입구에 연결되는 축열조 온수열교환기가 내측에 설치되고, 상기 축열조 온수열교환기의 출구에 연결되는 온수배관에는 상기 보조보일러의 온수열교환기를 매개로 믹싱밸브가 연결되며, 상기 믹싱밸브의 일측에는 상기 직수관이 연결되는 한편, 상기 믹싱밸브의 온수 입구측과 출구 측 및 직수유입구측에는 각각 온도센서가 설치되어, 상기 믹싱밸브에서는 믹싱밸브의 입출구에 설치된 온도센서의 감지온도에 의거 출수온도가 제어되도록 이루어진 것을 특징으로 하는 태양열 시스템.
- 제3항에 있어서, 상기 축열조의 상부와 중부 및 하부에 각 위치에서의 온도를 감지하는 상부온도센서, 중부온도센서 및 하부온도센서가 각각 설치되어, 난방환수의 유입위치와 집열배관의 열매체 유입위치를 제어하도록 이루어진 것을 특징으로 하는 태양열 시스템.
- 제3항에 있어서, 상기 축열조의 상측에는 축열조 내의 난방수를 외부로 순환시켜 방열시킬 수 있도록 방열배관을 매개로 방열기가 연결되고, 상기 방열배관의 일단에는 2방향밸브와 순환펌프가 연결되는 한편, 상기 방열기에는 태양광발전기가 연결되어 태양광발전기에서 공급되는 전원으로 구동되도록 이루어져, 태양열집열기의 출구측에 설치되는 온수온도감지센서의 감지온도가 사전에 설정된 온도보다 높은 경우 방열기로 순환시켜 과열을 방지하도록 이루어진 것을 특징으로 하는 태양열 시스템.
- 제1항에 있어서, 온수출구에 설치되는 믹싱밸브에는 직수관이 연결되어 온수출수온도를 제어할 수 있도록 이루어진 것을 특징으로 하는 태양열 시스템.
- 제1항에 있어서, 열매체 보충수 탱크에는 저수위센서가 설치되어, 열매체 자동보충과 누설 경보를 발생할 수 있도록 이루어진 것을 특징으로 하는 태양열 시스템.
Priority Applications (5)
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EP11780748.7A EP2570748A4 (en) | 2010-05-13 | 2011-03-20 | SOLAR THERMAL SYSTEM |
AU2011251139A AU2011251139B2 (en) | 2010-05-13 | 2011-03-20 | Solar thermal system |
JP2013510011A JP5427315B2 (ja) | 2010-05-13 | 2011-03-20 | 太陽熱システム |
US13/697,045 US9400122B2 (en) | 2010-05-13 | 2011-03-20 | Solar thermal system |
CN201180034174.4A CN102985763B (zh) | 2010-05-13 | 2011-03-20 | 太阳能热系统 |
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KR1020100045039A KR101105561B1 (ko) | 2010-05-13 | 2010-05-13 | 태양열 시스템 |
KR10-2010-0045039 | 2010-05-13 |
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WO2011142531A2 true WO2011142531A2 (ko) | 2011-11-17 |
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US (1) | US9400122B2 (ko) |
EP (1) | EP2570748A4 (ko) |
JP (1) | JP5427315B2 (ko) |
KR (1) | KR101105561B1 (ko) |
CN (1) | CN102985763B (ko) |
AU (1) | AU2011251139B2 (ko) |
WO (1) | WO2011142531A2 (ko) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105546836A (zh) * | 2016-01-29 | 2016-05-04 | 中国电建集团北京勘测设计研究院有限公司 | 采用非电辅助热源的太阳能集中间接热水系统 |
CN105588339A (zh) * | 2016-01-29 | 2016-05-18 | 中国电建集团北京勘测设计研究院有限公司 | 带有非电辅助热水源的太阳能集中集热热水系统 |
CN115046240A (zh) * | 2022-06-12 | 2022-09-13 | 湖北华辰九州能源有限公司 | 一种热电协同的长距离供热系统及其运行控制方法 |
Also Published As
Publication number | Publication date |
---|---|
CN102985763A (zh) | 2013-03-20 |
JP5427315B2 (ja) | 2014-02-26 |
KR101105561B1 (ko) | 2012-01-17 |
CN102985763B (zh) | 2015-02-11 |
WO2011142531A3 (ko) | 2012-01-19 |
US9400122B2 (en) | 2016-07-26 |
EP2570748A2 (en) | 2013-03-20 |
JP2013528775A (ja) | 2013-07-11 |
AU2011251139B2 (en) | 2013-10-17 |
US20130074827A1 (en) | 2013-03-28 |
AU2011251139A1 (en) | 2013-01-24 |
EP2570748A4 (en) | 2016-03-09 |
KR20110125485A (ko) | 2011-11-21 |
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