CN216744687U - System for meeting cold and hot demands of building by utilizing light energy to match heat storage device - Google Patents

System for meeting cold and hot demands of building by utilizing light energy to match heat storage device Download PDF

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CN216744687U
CN216744687U CN202123393659.2U CN202123393659U CN216744687U CN 216744687 U CN216744687 U CN 216744687U CN 202123393659 U CN202123393659 U CN 202123393659U CN 216744687 U CN216744687 U CN 216744687U
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heat
pipeline
conduction oil
storage device
communicated
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CN202123393659.2U
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李康康
王媛哲
许肖飞
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Suun Power Co ltd
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Suun Power Co ltd
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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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/272—Solar heating or cooling
    • 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
    • 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

Abstract

The utility model discloses a system for meeting the cold and heat requirements of a building by utilizing light energy to cooperate with a heat storage device, which comprises: the heat storage device is used for absorbing heat of a heat-conducting oil medium and supplying heat to the lithium bromide unit; the utility model fully utilizes illumination resources as main input energy, supplies heat for the lithium bromide unit through the pipeline, and then the lithium bromide unit supplies cold and heat for buildings, thereby reducing and avoiding a large amount of carbon emission caused by the use of other energy sources such as municipal electric power, gas, coal and the like.

Description

System for meeting cold and heat requirements of building by utilizing light energy to cooperate with heat storage device
Technical Field
The utility model belongs to the field of heating and ventilation systems, and particularly relates to a system for meeting the cold and heat requirements of a building by utilizing light energy to match with a heat storage device.
Background
With the falling of the national 'double-carbon' policy, great carbon reduction pressure is applied to various industries, and the utilization level of clean energy is urgently needed to be improved. The total energy consumption of Chinese buildings rises year by year, and accounts for nearly 30 percent of the total energy consumption, wherein the energy consumption of building heating and air conditioning accounts for 55 percent of the total energy consumption of buildings.
The illumination resource is the most extensive zero-carbon energy resource, and the solar energy is used as the main energy for building heating and air conditioning, so that the carbon emission in the building field can be obviously reduced, and the method has very important significance for realizing the double-carbon target in China. At present, the energy consumption of building cold supply and heat supply is high, most of the energy consumption is fossil energy or municipal electric power, and 70% of the electric power of a power grid is supplied by the fossil energy. The use of a large amount of fossil energy is bound to cause a large amount of carbon emission, and is not beneficial to the landing of the national double-carbon target.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a system for meeting the cold and heat requirements of a building by utilizing light energy and matching with a heat storage device, so as to solve the problem of large carbon emission caused by cold and heat supply of the building.
The utility model adopts the following technical scheme: a system for meeting cold and heat requirements of a building by utilizing light energy to cooperate with a heat storage device comprises:
the lithium bromide unit is communicated with the water supply side of the central air-conditioning main pipe network through a pipeline and is used for supplying heat or cold for buildings,
the inlet of the solar heat collector is communicated with the heat source outlet of the lithium bromide unit through a heat conduction oil return side pipeline, the solar heat collector is used for converting solar radiation energy into heat energy and heating a heat conduction oil medium by utilizing the heat energy so as to ensure that the heat conduction oil medium supplies heat to the lithium bromide unit,
the inlet of the heat storage device is communicated with the outlet of the solar heat collector through a heat conduction oil supply side pipeline, the outlet of the heat storage device is communicated with the heat source inlet of the lithium bromide unit through a pipeline, a first adjusting three-way valve is arranged on the heat conduction oil supply side pipeline and is also communicated with the heat source inlet of the lithium bromide unit through a heat conduction oil pipeline, and the heat storage device is used for absorbing heat of a heat conduction oil medium and supplying heat to the lithium bromide unit.
Further, a heat conduction oil circulating pump is installed on the heat conduction oil supply side pipeline.
Further, the outlet of the heat storage device is communicated with a secondary inlet on one side of the plate heat exchanger through a pipeline, a secondary outlet on one side of the plate heat exchanger is communicated with the inlet of the solar heat collector through a pipeline, secondary outlets on two sides of the plate heat exchanger are communicated with the water supply side of the central air-conditioning heat supply main pipe network through a pipeline, and secondary inlets on two sides of the plate heat exchanger are communicated with the water return side of the central air-conditioning heat supply main pipe network through a pipeline.
Furthermore, the pipeline that the export of heat-retaining device and one side of plate heat exchanger are linked together is the regulation pipeline, and the regulation pipeline still is linked together through pipeline and lithium bromide unit's heat source entry, installs the second on the regulation pipeline and adjusts the three-way valve of adjusting, and the second is adjusted the three-way valve and is used for adjusting the flow that gets into the heat source entry of lithium bromide unit and one side of plate heat exchanger secondary entry conduction oil.
Further, the solar heat collector comprises a heat conduction oil boiler, wherein the heat conduction oil boiler is located between the solar heat collector and the heat conduction oil circulating pump and used for starting the heat conduction oil boiler to supply heat and make up insufficient heat through a three-way valve of the heat conduction oil boiler when extreme weather occurs.
Further, the outlet of the secondary side of the plate heat exchanger is communicated with the domestic hot water supply side, and the inlet of the secondary side of the plate heat exchanger is communicated with a municipal tap water pipeline.
The utility model has the beneficial effects that: the utility model fully utilizes illumination resources as main input energy, supplies heat for the lithium bromide unit through the pipeline, and then the lithium bromide unit supplies cold and heat for buildings, thereby reducing and avoiding a large amount of carbon emission caused by the use of other energy sources such as municipal electric power, gas, coal and the like; the heat storage device is arranged, so that the output of the photo-thermal system can be adjusted, the output of the photo-thermal system is matched with the load of the energy utilization end, and meanwhile, the energy can still be supplied by the heat stored in the daytime when no light resource exists at night; the utility model can supply cold and heat, and can meet the cold and heat requirements of users through the standby of natural gas in extreme weather and without illumination for many days.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein: 1. a heat conducting oil return side pipeline; 2. a solar heat collector; 3. a heat storage device; 4. a first regulating three-way valve; 5. a heat transfer oil circulating pump; 6. a lithium bromide unit; 7. a heat transfer oil supply side pipeline; 8. the water supply side of the heat supply main pipe network; 9. the water return side of the cooling main pipe network; 10. a heat conductive oil pipeline; 11. a plate heat exchanger; 12. a second regulating three-way valve; 13. a domestic hot water supply side; 14. municipal tap water pipelines.
Detailed Description
The utility model is described in detail below with reference to the drawings and the detailed description.
The utility model discloses a system for meeting the cold and heat requirements of a building by utilizing light energy to match with a heat storage device, which comprises a lithium bromide unit 6, a solar heat collector 2 and the heat storage device 3, as shown in figure 1.
The lithium bromide unit 6 is communicated with the water supply side of the central air-conditioning main pipe network through a pipeline, the lithium bromide unit 6 is used for supplying heat or cooling for a building, the inlet of the solar heat collector 2 is communicated with the heat source outlet of the lithium bromide unit 6 through a heat conduction oil return side pipeline 1, the solar heat collector 2 is used for converting solar radiation energy into heat energy and heating a heat conduction oil medium by utilizing the heat energy, and then the heat conduction oil medium supplies heat to the lithium bromide unit 6.
The inlet of the heat storage device 3 is communicated with the outlet of the solar heat collector 2 through a heat conduction oil supply side pipeline 7, the outlet of the heat storage device 3 is communicated with the heat source inlet of the lithium bromide unit 6 through a pipeline, a first adjusting three-way valve 4 is arranged on the heat conduction oil supply side pipeline 7, the first adjusting three-way valve 4 is also communicated with the heat source inlet of the lithium bromide unit 6 through a heat conduction oil pipeline 10, and the heat storage device 3 is used for absorbing heat of a heat conduction oil medium and supplying heat to the lithium bromide unit 6.
The heat conduction oil supply side pipeline 7 is provided with a heat conduction oil circulating pump 5, the heat conduction oil circulating pump 5 can control the circulating flow rate thereof through frequency conversion, and the heat conduction oil circulating pump 5 provides power for the heat conduction oil in the heat conduction oil supply side pipeline 7, so that the heat conduction oil is continuously circulated.
The outlet of the heat storage device 3 is also communicated with a secondary inlet at one side of the plate heat exchanger 11 through a pipeline, a secondary outlet at one side of the plate heat exchanger 11 is communicated with the inlet of the solar heat collector 2 through a pipeline, secondary outlets at two sides of the plate heat exchanger 11 are communicated with a water supply side 8 of a central air-conditioning heat supply main pipe network through a pipeline, and secondary inlets at two sides of the plate heat exchanger 11 are communicated with a water return side 9 of the central air-conditioning heat supply main pipe network through a pipeline.
The outlet of the plate heat exchanger 11 on the secondary side is also communicated with a domestic hot water supply side 13, the inlet of the plate heat exchanger 11 on the secondary side is communicated with a municipal tap water pipeline 14, the plate heat exchanger 11 heats the municipal tap water by utilizing heat of heat transfer oil, and the plate heat exchanger 11 is used for meeting domestic hot water requirements such as bathing in buildings.
The pipeline that the export of heat-retaining device 3 and one side of plate heat exchanger 11 are linked together is the regulation pipeline, and the regulation pipeline still is linked together through pipeline and lithium bromide unit 6's heat source entry, installs second regulation three-way valve 12 on the regulation pipeline, and second regulation three-way valve 12 is used for adjusting the flow that gets into the heat source entry of lithium bromide unit 6 and the one side of plate heat exchanger 11 time entry the conduction oil.
The lithium bromide unit 6 can adopt a summer cooling mode in summer, and performs absorption refrigeration by utilizing the characteristics of a lithium bromide solution, so that circulating chilled water is cooled, and then the building is cooled by a tail end fan coil. The mode can be switched to a winter mode in winter, the heat of a heat conduction oil heat source is converted into circulating hot water in the heat exchange mode, and the water is heated and then is supplied with heat through the tail end fan coil.
The solar heat collector 2 is a trough type or tubular type heat collector, the solar heat collector 2 is used for heating heat conduction oil, and the heating temperature can reach 300 ℃. The heat storage device 3 adopts a solid heat-conducting oil heat storage device 3, and the working temperature can reach 400 ℃. The lithium bromide unit 6 mainly uses the conduction oil as the heat source, has the natural gas combustor simultaneously and can start the combustor and heat the cooling when the heat of conduction oil is not enough, and the changeable cooling heat supply mode of lithium bromide unit 6 passes through the lithium bromide absorption refrigeration during the cooling, and heat in the heat conduction oil is changed to in the heating hot water through the heat exchanger during the heating.
The output of the lithium bromide unit 6, namely the temperature of the chilled water for supplying and returning water, preferentially adjusts the electric first adjusting three-way valve 4, and when the quantity of the photo-thermal resources is large, part of heat-conducting oil flows through the heat storage device 3, and the heat is stored in the heat storage device 3; when the quantity of the photo-thermal resources is small, the heat conduction oil is heated by the heat storage device 3.
In the system operation process, the lithium bromide unit 6 can automatically adjust the output according to the cold and hot demands in the building, and under the cold supply working condition, the change of the heat supply load demand of the heat transfer oil is judged by controlling the chilled water outlet water temperature of the lithium bromide unit 6. Under the working condition of heat supply, the change of the heat supply requirement of the heat conduction oil is judged by controlling the hot water outlet temperature of the lithium bromide unit 6. The plate heat exchanger 11 judges the change of the heat demand of the heat conducting oil according to the temperature of the secondary side hot water outlet.
The regulation of the heat supply quantity of the heat conduction oil needs to be coordinated and regulated among the heat storage systems, and the regulation of the heat quantity of the heat conduction oil and the heat charging and discharging processes of the heat storage device are stated as follows:
when the heat end is required to reduce the heat input of the heat conducting oil, starting a heat charging process: at the moment, the temperature of heat conducting oil at the outlet of the solar heat collector 2 is higher than that of the heat storage device 3, the electric first adjusting three-way valve 4 is adjusted to enable part of high-temperature heat conducting oil to flow through the heat storage device 3, and when the temperature of the heat storage device 3 meets the requirement, the frequency of the heat conducting oil circulating pump 5 is reduced to reduce the circulating heat supply amount. When the heat end needs to reduce the heat supply of the heat conduction oil, the heat supply of the lithium bromide unit 6 is increased, the circulation flow of the heat conduction oil circulating pump 5 is increased at the moment, if the pump flow reaches the maximum, the electric first adjusting three-way valve 4 is adjusted, the heat supply of the heat conduction oil which is the heat storage device 3 is reduced, and if the heat supply of the heat conduction oil reaches the minimum, the heat demand can not be met. At this point, an exothermic process was initiated: at the moment, the temperature of the heat conducting oil outlet of the solar heat collector 2 is lower than that of the heat storage device 3, the electric first adjusting three-way valve 4 is adjusted, low-temperature heat conducting oil flows through the heat storage device 3 gradually, heat of the heat storage device 3 is taken out, high-temperature heat conducting oil is obtained, and heat is supplied through the lithium bromide unit 6.
The utility model also comprises a heat conduction oil boiler, wherein the heat conduction oil boiler is positioned between the solar heat collector 2 and the heat conduction oil circulating pump 5, and the heat conduction oil boiler is used for starting the heat conduction oil boiler to supply heat through a three-way valve when extreme weather occurs, so that the insufficient heat is made up.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A system for meeting cold and heat requirements of a building by utilizing light energy to cooperate with a heat storage device is characterized by comprising:
a lithium bromide unit (6) communicated with the water supply side of the central air-conditioning main pipe network through a pipeline and used for supplying heat or cold for buildings,
an inlet of the solar heat collector (2) is communicated with a heat source outlet of the lithium bromide unit (6) through a heat conduction oil return side pipeline (1), the solar heat collector (2) is used for converting solar radiation energy into heat energy and heating a heat conduction oil medium by utilizing the heat energy so that the heat conduction oil medium supplies heat to the lithium bromide unit (6),
the inlet of the heat storage device (3) is communicated with the outlet of the solar heat collector (2) through a heat conduction oil supply side pipeline (7), the outlet of the heat storage device is communicated with the heat source inlet of the lithium bromide unit (6) through a pipeline, a first adjusting three-way valve (4) is arranged on the heat conduction oil supply side pipeline (7), the first adjusting three-way valve (4) is further communicated with the heat source inlet of the lithium bromide unit (6) through a heat conduction oil pipeline (10), and the heat storage device (3) is used for absorbing heat of a heat conduction oil medium and supplying heat to the lithium bromide unit (6).
2. The system for meeting the cold and heat requirements of the building by using the light energy to match with the heat storage device as claimed in claim 1, wherein the heat conducting oil supply side pipeline (7) is provided with a heat conducting oil circulating pump (5).
3. The system for meeting the cold and heat demand of the building by using the light energy to match with the heat storage device is characterized in that the outlet of the heat storage device (3) is also communicated with a secondary inlet at one side of the plate heat exchanger (11) through a pipeline, the secondary outlet at one side of the plate heat exchanger (11) is communicated with the inlet of the solar heat collector (2) through a pipeline, the secondary outlets at two sides of the plate heat exchanger (11) are communicated with the water supply side (8) of the central air-conditioning heat supply main pipe network through a pipeline, and the secondary inlets at two sides of the plate heat exchanger (11) are communicated with the water return side (9) of the central air-conditioning heat supply main pipe network through a pipeline.
4. The system for meeting the cold and heat requirements of a building by utilizing the cooperation of light energy and heat storage devices is characterized in that a pipeline, which is communicated with a secondary inlet on one side of the plate heat exchanger (11), of an outlet of the heat storage device (3) is an adjusting pipeline, the adjusting pipeline is also communicated with a heat source inlet of the lithium bromide unit (6) through a pipeline, a second adjusting three-way valve (12) is installed on the adjusting pipeline, and the second adjusting three-way valve (12) is used for adjusting the flow of heat conduction oil entering the heat source inlet of the lithium bromide unit (6) and the secondary inlet on one side of the plate heat exchanger (11).
5. The system for meeting the cold and heat requirements of the building by using the light energy to match with the heat storage device is characterized by further comprising a heat conduction oil boiler, wherein the heat conduction oil boiler is located between the solar heat collector (2) and the heat conduction oil circulating pump (5) and used for starting the heat conduction oil boiler to supply heat through a three-way valve of the heat conduction oil boiler to make up for insufficient heat in extreme weather.
6. The system for meeting the cold and heat demand of the building by using the light energy and the heat storage device as the claims 5 is characterized in that the secondary side outlet of the plate heat exchanger (11) is also communicated with the domestic hot water supply side (13), and the secondary side inlet of the plate heat exchanger (11) is communicated with the municipal tap water pipeline (14).
CN202123393659.2U 2021-12-30 2021-12-30 System for meeting cold and hot demands of building by utilizing light energy to match heat storage device Active CN216744687U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123393659.2U CN216744687U (en) 2021-12-30 2021-12-30 System for meeting cold and hot demands of building by utilizing light energy to match heat storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123393659.2U CN216744687U (en) 2021-12-30 2021-12-30 System for meeting cold and hot demands of building by utilizing light energy to match heat storage device

Publications (1)

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CN216744687U true CN216744687U (en) 2022-06-14

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