CN210624669U - Multifunctional complementary integrated energy system - Google Patents
Multifunctional complementary integrated energy system Download PDFInfo
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- CN210624669U CN210624669U CN201921127328.4U CN201921127328U CN210624669U CN 210624669 U CN210624669 U CN 210624669U CN 201921127328 U CN201921127328 U CN 201921127328U CN 210624669 U CN210624669 U CN 210624669U
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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
- Y02B10/40—Geothermal heat-pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- 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
- Y02E10/10—Geothermal energy
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model discloses a complementary integration energy system of multipotency, the system divide into life hot water system, cooling system in summer and heating system in winter. The domestic hot water system is characterized in that hot water is extracted from a geothermal well through a submersible pump to provide energy for a primary heat exchanger, and domestic hot water is provided for users after energy exchange is carried out by the primary heat exchanger. The summer cooling system is characterized in that the heat pump provides cooling base load for the user end all day. Starting a refrigerating unit, storing cold in the phase change energy storage device, and simultaneously ensuring indoor cold supply; and closing the refrigerating unit, and starting the phase change energy storage device and the heat pump to jointly supply cold. The winter heating system is characterized in that geothermal well resources are utilized to provide base load heat load for heat users. After the geothermal water is subjected to gradient utilization, the geothermal water is sent back to the recharging well; and when the heat load is insufficient, the phase change energy storage device is utilized for supplementing: starting the electric boiler, storing energy by the phase change energy storage device, and simultaneously ensuring indoor heating; and (4) closing the electric boiler and heating by using the phase change energy storage device.
Description
Technical Field
The utility model relates to a phase change energy storage system field especially relates to a multi-functional complementary integration energy system.
Background
With the development of the times, more and more building projects are gradually changed from the single demand of energy to the diversified demand of energy. However, each energy system (such as a heating system, a cooling system, etc.) is independent and cannot utilize resources to the maximum extent, which causes waste of resources. Therefore, various energy systems are urgently needed to be integrated so as to meet the requirements of environmental protection, energy conservation, economy, reasonability, safety and reliability and realize scientific construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects in the prior art and providing a multifunctional complementary integrated energy system, which reduces the geothermal recharging temperature by fully utilizing geothermal resources, realizes the stepped utilization of geothermal energy and improves the geothermal utilization rate; meanwhile, the phase change energy storage device and the heat pump have different use functions in winter and summer, so that a summer cooling system and a winter heating system can be shared to realize multi-energy complementation; on the premise of guaranteeing the indoor temperature, the integrated energy system of geothermy, heat storage and cold storage for automatically adjusting energy supply is realized.
The utility model aims at realizing through the following technical scheme:
a multifunctional complementary integrated energy system is divided into a domestic hot water system, a summer cooling system and a winter heating system;
the domestic hot water system comprises a geothermal well, a submersible pump, a sand remover, a primary heat exchanger and a first circulating pump; the domestic hot water system is divided into a water outlet pipeline and a water return pipeline, and the water outlet pipeline is formed by sequentially connecting the geothermal well, the submersible pump, the desander, the primary heat exchanger and the user side; the water return pipeline is connected with the user side, the first circulating pump, the primary heat exchanger and the secondary heat exchanger of the summer cooling system in sequence;
the summer cooling system comprises a secondary heat exchanger, a second circulating pump, a heat pump, a cooling tower, a refrigerating unit, a first cooling water pump, a second cooling water pump, a phase change energy storage device, a fourth circulating pump, a heat exchanger and a fifth circulating pump; the summer cooling system includes eight pipelines, wherein:
the first pipeline is formed by sequentially connecting a second circulating pump of the secondary heat exchanger, a heat pump and a user side;
the second pipeline is formed by sequentially connecting a user side, a heat pump and a secondary heat exchanger;
the third pipeline is formed by leading out a second circulating pump and a heat pump in the first pipeline and then sequentially connecting the second circulating pump and the heat pump with a cooling tower, a first cooling water pump, a refrigerating unit, a second cooling water pump and a phase change energy storage device;
the fourth pipeline is formed by sequentially connecting the phase change energy storage device, the refrigerating unit, the cooling tower, the heat pump and second pipelines between the second-stage heat exchanger;
the fifth pipeline is formed by leading out the water outlet end of the heat pump in the first pipeline and connecting with a third pipeline between the second cooling water pump and the phase change energy storage device;
the sixth pipeline is formed by leading out a water return end of the heat pump and connecting with a fourth pipeline between the refrigerating unit and the phase change energy storage device;
the seventh pipeline is formed by sequentially connecting a phase change energy storage device, a fourth circulating pump, a heat exchanger, a fifth circulating pump and a fifth pipeline;
the eighth pipeline is formed by leading out a sixth pipeline and then sequentially connecting the sixth pipeline with the heat exchanger and the phase change energy storage device;
winter heating system includes one-level heat exchanger, second grade heat exchanger, second circulating pump, heat pump, recharge well, electric boiler, phase change energy memory and third circulating pump, and winter heating system divide into three heat supply pipelines altogether, wherein:
the first heat supply pipeline is formed by mutually connecting a primary heat exchanger, a secondary heat exchanger, a second circulating pump, a heat pump and a user side;
the second heat supply pipe is formed by sequentially connecting a user side, a heat pump, a secondary heat exchanger recharging pump and a recharging well;
the third heat supply pipeline is formed by leading out a water return end of the heat pump and then sequentially connecting the water return end of the heat pump with the electric boiler, the third circulating pump, the phase change energy storage device and a water outlet end of the heat pump.
Furthermore, the return water temperature of the geothermal well heat source is changed into temperature after passing through the primary heat exchanger and the secondary heat exchanger, and is sent back to the recharge well through a recharge pump; the heat exchanged by the primary heat exchanger provides life hot water all year round for the user side, and the heat exchanged by the secondary heat exchanger is supplemented by the heat pump to provide base load heat load for the user side.
Further, the phase change energy storage device is a heat pool.
Furthermore, a phase-change energy storage material is arranged in the phase-change energy storage device, latent heat of the phase-change energy storage material is utilized to store heat, the electric boiler provides energy, and the phase-change energy storage material absorbs heat and changes from a solid state to a liquid state; at the tail end heat supply position, the phase change energy storage device transmits heat to tail end equipment, and the phase change energy storage material releases heat and changes from a liquid state to a solid state.
Compared with the prior art, the utility model discloses a beneficial effect that technical scheme brought is:
1. the cascade utilization of geothermal energy is realized, and the utilization rate of resources is improved.
2. The phase change energy storage device can be used in winter and summer, is efficient and reliable, and organically integrates cold accumulation and heat accumulation in one system.
3. The heat pump can be used in winter and summer, the low-temperature section of the terrestrial heat is fully utilized to provide heat in winter, and the low-temperature section is switched to the cooling tower in summer to provide refrigeration base load.
4. In winter and summer, the heat pump and the refrigerating unit are used for bearing base load, and the phase change energy storage device is used for bearing peak load, so that the social benefit of energy peak clipping and valley filling is realized, and considerable economic benefit is obtained through peak-valley electricity price difference. The whole system equipment has high automation degree under different working conditions, is fully utilized, is environment-friendly, energy-saving, economical, reasonable, safe and reliable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of a domestic hot water system.
Fig. 3 is a schematic view of a summer cooling system.
Fig. 4 is a schematic view of a winter heating system.
Reference numerals: 1-geothermal well, 2-submersible pump, 3-desander, 4-primary heat exchanger, 5-circulating pump, 6-secondary heat exchanger, 7-circulating pump, 8-heat pump, 9-recharge pump, 10-recharge well, 11-cooling tower, 12-electric boiler, 13-circulating pump, 14-refrigerating unit, 15-cooling water pump, 16-cooling water pump, 17-phase change energy storage device, 18-circulating pump, 19-heat exchanger, 20-circulating pump
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in figures 1 to 4, the utility model provides a complementary integration energy system of multipotency, the essential part includes geothermal well 1 and the heat cascade utilization of heat pump 8, the joint cooling of heat pump 8 and phase change energy memory 17, the joint heat supply of heat pump 8 and phase change energy memory 17, heat pump 8 and refrigerating unit 14 sharing cooling tower and summer, dual-purpose phase change energy memory 17 in winter, this integration energy system divide into annual life hot water system ①, summer cooling system ② and winter heating system ③.
The annual domestic hot water system ① comprises a geothermal well 1, a submersible pump 2, a desander 3, a primary heat exchanger 4 and a circulating pump 5, wherein the geothermal well 1, the submersible pump 2, the desander 3 and the primary heat exchanger 4 are arranged on the side of the geothermal well 1, the hot water system is operated under the condition that hot water is extracted from the geothermal well 1 through the submersible pump 2, the desander 3 removes sand and provides energy with the water supply temperature of 60 ℃ and the water return temperature of 45 ℃ for the primary heat exchanger 4, and the primary heat exchanger 4 and the circulating pump 5 are used for providing kinetic energy for circulating water through the circulating pump 5 after energy exchange is carried out by the primary heat exchanger 4 and provides domestic hot water with the water supply temperature of 55 ℃ and the water return temperature of 40 ℃ for users.
The equipment used by the summer cooling supply system ② is a secondary heat exchanger 6, a circulating pump 7, a heat pump 8, a cooling tower 11, a refrigerating unit 14, a cooling water pump 15, a cooling water pump 16, a phase change energy storage device 17, a circulating pump 18, a heat exchanger 19 and a circulating pump 20, wherein the operation working condition of the cooling supply system is that the cooling tower 11 is connected with the secondary heat exchanger 6 and the heat pump 8 on pipelines, a three-way valve is adopted as a connector, the cooling supply closes the side of the three-way valve secondary heat exchanger 6 in summer, the cooling tower 11 is connected with the heat pump 8, and the heat pump 8 provides cooling base load with water supply temperature of 7 ℃ and water return temperature of;
the connection side of the heat pump 8 and the cooling water pump 15 with the cooling tower 11: the heat pump 8 and the refrigerating unit 14 share the cooling tower 11, the refrigerating unit 14 is started, the cooling water pump 15 provides kinetic energy for circulating water, and the circulating water cooled by the cooling tower 11 returns to the refrigerating unit 14. The refrigeration unit 14, the cooling water pump 16, and the phase change energy storage device 17 side: kinetic energy is provided by the cooling water pump 16, phase change cold accumulation is carried out by the phase change material in the phase change energy storage device 17, and the circulating water returns to the refrigerating unit 14 after energy exchange;
phase change energy storage device 17, circulation pump 18, and heat exchanger 19 side: the refrigerating unit 14 is closed, the phase change energy storage device 17 is started, the circulating pump 18 is used for providing kinetic energy for circulating water, and the circulating water returns to the phase change energy storage device 17 after energy exchange is carried out through the heat exchanger 19; the circulating water is then supplied with kinetic energy by the user side circulation pump 20 to supply cooling to the user. Meanwhile, the heat pump 8 also provides a cooling base load, and performs combined cooling with the water supply temperature of 7 ℃ and the water return temperature of 12 ℃.
The equipment used by the winter heating system ③ comprises a secondary heat exchanger 6, a circulating pump 7, a heat pump 8, a recharge pump 9, a recharge well 10, an electric boiler 12, a phase change energy storage device 17 and a circulating pump 13, wherein the secondary heat exchanger 6, the recharge pump 9 and the recharge well 10 are arranged on the sides of the heating system, namely, the operation working condition of the heating system is that hot water with the temperature of 45 ℃ after cascade utilization is subjected to heat exchange by the secondary heat exchanger 6 to form low-energy hot water with the temperature of 20 ℃ and the low-energy hot water is sent back to the recharge well 10 by;
the secondary heat exchanger 6, the circulating pump 7 and the heat pump 8 side: the circulating water exchanged out by the secondary heat exchanger provides kinetic energy through a circulating pump 7, heat energy with the water supply temperature of 42 ℃ and the water return temperature of 17 ℃ is provided for the heat pump 8, then the circulating water returns to the secondary heat exchanger 6, the heat pump 8 provides heat energy for hot water, and a base load heat load with the water supply temperature of 55 ℃ and the water return temperature of 40 ℃ is provided for a user;
The system according to the description in 1 is characterized in that: the temperature of the outlet water of the heat source of the geothermal well 1 is 60 ℃, the temperature is changed into 20 ℃ after passing through the primary plate heat exchanger 4 and the secondary plate heat exchanger 6, and the outlet water is sent back to the recharge well 10 through the recharge pump 9. The heat exchanged by the first-stage plate heat exchanger 4 provides life hot water all year round for users, and the heat exchanged by the second-stage plate heat exchanger 6 is supplemented by the heat pump 8 to provide base load heat load for users.
Specifically, since the phase change energy storage device 17 plays a role in cold storage in summer and plays a role in heat storage after the phase change material is inserted in winter, the phase change energy storage device 17 can be used in common in summer and winter. The heat pump 8 provides partial base load cooling load for users after the heat pump 8 acts with the cooling tower 11 in summer, and provides base load heating load for users when the energy supplement is carried out on the secondary plate heat exchanger in winter, so that the heat pump 8 can be shared in summer and winter.
The phase-change energy storage device 17 is filled with a phase-change energy storage material, latent heat of the phase-change material is used for storing heat, the electric boiler provides energy, and the phase-change material absorbs heat and changes from a solid state to a liquid state; at the end supply, the phase change energy storage device 17 delivers heat to the end device, and the phase change material releases heat and changes from a liquid state to a solid state. The system operates at normal pressure, and is safe and reliable.
The cost of the heat source from the geothermal well is 2 yuan/ton calculated by taking the real life as an example. 30 yuan/ton of raw live hot water charge, the cost of the geothermal water is 4 yuan/ton after the energy system is adopted, the transportation cost is 0.7 yuan/ton, and the total cost is 4.7 yuan/ton which is 16 percent of the original cost; after the geothermal water is used in a gradient way, heat is supplied by a heat pump, the original municipal charging area is 40 yuan/square meter, and the heating cost after the energy system is adopted is 14.2 yuan/square meter which is 36 percent of the original cost; the cooling charge is 80 yuan/square meter, the cooling cost after the energy system of the utility model is 22 yuan/square meter, which is 27.5 percent of the original cost. Compare in conventional energy system, the utility model discloses integration energy system energy is with low costs, and the operation is stable, and it is little to take up an area of, and is high to the utilization ratio of the energy to very big increase commercial value.
The present invention is not limited to the above-described embodiments. The above description of the embodiments is intended to describe and illustrate the technical solutions of the present invention, and the above embodiments are merely illustrative and not restrictive. Without departing from the spirit of the invention and the scope of the appended claims, the person skilled in the art can make many changes in form and detail within the teaching of the invention.
Claims (4)
1. A multifunctional complementary integrated energy system is characterized in that the integrated energy system is divided into a domestic hot water system, a summer cooling system and a winter heating system;
the domestic hot water system comprises a geothermal well (1), a submersible pump (2), a sand remover (3), a primary heat exchanger (4) and a first circulating pump (5); the domestic hot water system is divided into a water outlet pipeline and a water return pipeline, and the water outlet pipeline is formed by sequentially connecting the geothermal well (1), the submersible pump (2), the desander (3), the primary heat exchanger (4) and a user side; the water return pipeline is connected with a user side, a first circulating pump (5), a primary heat exchanger (4) and a secondary heat exchanger (6) of the summer cooling system in sequence;
the summer cooling system comprises a secondary heat exchanger (6), a second circulating pump (7), a heat pump (8), a cooling tower (11), a refrigerating unit (14), a first cooling water pump (15), a second cooling water pump (16), a phase change energy storage device (17), a fourth circulating pump (18), a heat exchanger (19) and a fifth circulating pump (20); the summer cooling system includes eight pipelines, wherein:
the first pipeline is formed by sequentially connecting a second heat exchanger (6), a second circulating pump (7), a heat pump (8) and a user side;
the second pipeline is formed by sequentially connecting a user side, a heat pump (8) and a secondary heat exchanger (6);
the third pipeline is formed by leading out a second circulating pump (7) and a heat pump (8) in the first pipeline and then sequentially connecting the second circulating pump with a cooling tower (11), a first cooling water pump (15), a refrigerating unit (14), a second cooling water pump (16) and a phase change energy storage device (17);
the fourth pipeline is formed by sequentially connecting a phase change energy storage device (17), a refrigerating unit (14), a cooling tower (11), a heat pump (8) and second pipelines between the secondary heat exchangers (6);
the fifth pipeline is formed by leading out the water outlet end of the heat pump (8) in the first pipeline and connecting with a third pipeline between the second cooling water pump (16) and the phase change energy storage device (17);
the sixth pipeline is formed by leading out a water return end of the heat pump (8) and connecting with a fourth pipeline between the refrigerating unit (14) and the phase change energy storage device (17);
the seventh pipeline is formed by sequentially connecting a phase change energy storage device (17), a fourth circulating pump (18), a heat exchanger (19), a fifth circulating pump (20) and a fifth pipeline;
the eighth pipeline is formed by leading out a sixth pipeline and then sequentially connecting the sixth pipeline with a heat exchanger (19) and a phase change energy storage device (17);
winter heating system includes one-level heat exchanger (4), second grade heat exchanger (6), second circulating pump (7), heat pump (8), recharge pump (9), recharge well (10), electric boiler (12), phase change energy memory (17) and third circulating pump (13), and winter heating system divide into three heat supply pipelines altogether, wherein:
the first heat supply pipeline is formed by mutually connecting a primary heat exchanger (4), a secondary heat exchanger (6), a second circulating pump (7), a heat pump (8) and a user side;
the second heat supply pipeline is formed by sequentially connecting a user side, a heat pump (8), a secondary heat exchanger (6), a recharge pump (9) and a recharge well (10);
the third heat supply pipeline is formed by leading out a water return end of the heat pump (8) and then sequentially connecting the water return end of the heat pump with the electric boiler (12), the third circulating pump (13), the phase change energy storage device (17) and a water outlet end of the heat pump (8).
2. The multifunctional complementary integrated energy system according to claim 1, wherein the geothermal well (1) has a return water temperature of 60 degrees from the heat source, and the return water temperature is changed to 20 degrees after passing through the primary heat exchanger (4) and the secondary heat exchanger (6), and is returned to the recharging well (10) through the recharging pump (9); the heat exchanged by the primary heat exchanger (4) provides life hot water all the year around for the user side, and the heat exchanged by the secondary heat exchanger (6) is supplemented by the heat pump (8) to provide base load heat load for the user side.
3. The multifunctional complementary integrated energy system according to claim 1, wherein the phase change energy storage device (17) is a cold and heat storage energy storage device for winter and summer.
4. The multifunctional complementary integrated energy system according to claim 1, wherein a phase-change energy storage material is arranged in the phase-change energy storage device (17), the latent heat of the phase-change energy storage material is utilized to store heat, the electric boiler provides energy, and the phase-change energy storage material absorbs heat and changes from a solid state to a liquid state; at the end heat supply, the phase change energy storage device (17) delivers heat to the end equipment, and the phase change energy storage material releases heat and changes from a liquid state to a solid state.
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| CN201921127328.4U CN210624669U (en) | 2019-07-18 | 2019-07-18 | Multifunctional complementary integrated energy system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432175A (en) * | 2021-06-21 | 2021-09-24 | 中国科学院电工研究所 | Compact composite building heat and cold storage system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432175A (en) * | 2021-06-21 | 2021-09-24 | 中国科学院电工研究所 | Compact composite building heat and cold storage system |
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Granted publication date: 20200526 Termination date: 20210718 |