CN115342408A - Public building geothermal energy collecting, filling, regulating, storing and heating system and operation method - Google Patents
Public building geothermal energy collecting, filling, regulating, storing and heating system and operation method Download PDFInfo
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- CN115342408A CN115342408A CN202210861343.1A CN202210861343A CN115342408A CN 115342408 A CN115342408 A CN 115342408A CN 202210861343 A CN202210861343 A CN 202210861343A CN 115342408 A CN115342408 A CN 115342408A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 113
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 169
- 238000003860 storage Methods 0.000 claims abstract description 68
- 238000005065 mining Methods 0.000 claims abstract description 5
- 238000005338 heat storage Methods 0.000 claims description 95
- 230000009471 action Effects 0.000 claims description 8
- 238000003973 irrigation Methods 0.000 claims description 8
- 230000002262 irrigation Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 235000020681 well water Nutrition 0.000 claims description 3
- 239000002349 well water Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 238000004146 energy storage Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000013486 operation strategy Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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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
- F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
- F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
- F24D11/0228—Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with conventional heater
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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
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
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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
- F24D3/18—Hot-water central heating systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/20—Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
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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
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Central Heating Systems (AREA)
Abstract
The invention relates to a geothermal mining, filling, regulating, storing and heating system for a public building, which comprises a geothermal well mining and filling system, a primary regulating, storing and heating system and a secondary regulating, storing and heating system, wherein high-temperature geothermal water extracted by a geothermal well is used for heating a user through the primary regulating, storing and heating system during the period of valley power utilization, the once-utilized warm water enters the secondary regulating, storing and heating system through an intermediate circulating pump to release heat for heating a user end, and then flows into a recharging water storage tank for recharging, so that the secondary utilization of geothermal water can be realized. The system is scientific and reasonable in design, adopts geothermal heating and energy storage coupling technology, realizes twice utilization of geothermal water by using a primary regulation and storage heating system and a secondary regulation and storage heating system, effectively reduces the temperature of geothermal tail water, improves the utilization rate of geothermal energy resources, reduces resource waste, and simultaneously stores energy for the system in a valley power utilization period according to a peak-valley power price operation strategy, thereby not only reducing power utilization load, but also reducing system operation cost, realizing low-cost heating, and improving system economic benefit and social benefit.
Description
Technical Field
The invention belongs to the technical field of geothermal engineering, relates to a geothermal heating-water energy storage coupling technology, and particularly relates to a geothermal pumping and irrigation regulation and storage heating system for a public building and an operation method.
Background
With the requirement of carbon peak reaching globalization, the demand of optimizing the energy structure in China is increasingly urgent, and the popularization and application of the geothermal heating technology provide important guarantee for the optimization of the energy structure in China, but with the continuous development of economy, the demand of social electricity utilization is also continuously improved, and the matching of the geothermal heating technology and electric power resources also becomes an important problem of the development of geothermal energy.
The geothermal heating technology and the energy storage coupling technology can match the geothermal heating technology with electric power resources, heat of geothermal water is stored by a medium in the valley period of power utilization, and the heat stored in the medium is released for heating in the peak period of power utilization, so that the peak shifting and valley filling of the electric power resources are realized, the shortage condition of the electric power resources is relieved, and clean and pollution-free heating is realized.
In the prior art, a multi-mining-irrigation heating mode of the traditional geothermal heating energy storage coupling technology is a direct geothermal water mining mode, geothermal water is recharged after being used for one time, and the temperature of the recharged geothermal tail water is high, the heat energy utilization rate is low, the geothermal water is not fully utilized, and the problem of resource waste exists.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a geothermal heating, mining and irrigation regulation and storage heating system for a public building.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a public building geothermal heating system adopting irrigation and regulation comprises a geothermal well heating system, a primary regulation and storage heating system and a secondary regulation and storage heating system, wherein the primary regulation and storage heating system comprises a primary heat storage pump, a primary heat storage water tank, a primary circulating pump, a primary plate heat exchanger and a primary heating pump; the secondary storage heating system comprises a secondary circulating pump, a secondary plate heat exchanger, an intermediate circulating pump, a heat pump unit, a secondary heat storage pump, a secondary heat storage water tank and a secondary heating pump, the geothermal well irrigation system is a single-well irrigation system and comprises a geothermal well and a recharge water storage tank, the primary heat storage water tank of the primary storage heating system is connected with the geothermal well through the primary heat storage pump, high-temperature geothermal water produced by the geothermal well enters the primary heat storage water tank through the primary heat storage pump, hot water in the water tank enters the primary plate heat exchanger through the primary circulating pump to transfer heat to circulating water on a user side through the primary heat supply pump so as to supply heat for users, warm water after being once utilized in the primary heat storage water tank in the primary storage heating system flows into the recharge water storage tank to be recharged after entering the secondary plate heat exchanger of the secondary storage heating system through the intermediate circulating pump to release heat, the circulating water absorbs heat through the secondary plate heat exchanger and then flows to the heat pump unit through the secondary circulating pump unit, and circulating water is stored in the secondary heat storage water storage tank through the secondary heat storage pump so as the user side through the secondary heating pump.
According to the water storage capacity of 100t/h, the first-stage heat storage pump works for 8-10 hours to meet the heating requirement of a user, and the volume of the first-stage heat storage water tank body is about 1000m 3 . When the primary regulation and storage heating system stores energy, the heat pump unit in the secondary regulation and storage heating system operates, the circulating water on the user side is heated through the working medium after the heat is absorbed by the secondary plate heat exchanger, and the heated circulating water enters the secondary heat storage water tank under the action of the secondary heat storage pump to store heat for the user to use.
A method for operating a geothermal production-irrigation regulation-storage heating system of a public building includes the steps of storing heat in a valley period of power utilization, enabling 70-80 ℃ high-temperature geothermal water extracted from a geothermal well to enter a primary heat storage water tank through a primary heat storage pump of a primary regulation-storage heating system for heat storage in the heat storage process, enabling the utilized 50-60 ℃ warm water in the water tank to flow through a secondary plate heat exchanger under the action of a secondary circulating pump of the secondary regulation-storage heating system and release heat, enabling the geothermal tail water with the temperature lower than 10 ℃ to flow into a recharge water storage tank, recharging the geothermal water to the ground through a geothermal well, enabling a heat pump unit to operate, enabling circulating water to flow to the heat pump unit after absorbing heat through the secondary plate heat exchanger, transmitting the heat to user side circulating water, and enabling the circulating water to enter the secondary heat storage water tank for heat storage and being used by users.
When a user has a heating demand, in the primary regulation and storage heating system, high-temperature geothermal water in the primary heat storage water tank flows through the primary plate heat exchanger through the primary circulating pump to release heat and then flows back to the primary heat storage water tank, and user side circulating water absorbs heat through the primary plate heat exchanger and then supplies heat to the user under the action of the primary heating pump; in the second-stage regulation and storage heating system, warm water in the second-stage heat storage water tank directly passes through the second-stage heating pump to supply heat for users.
And when the heat stored in the secondary heat storage water tank can not meet the requirement of a user, the user side circulating water in the primary storage heating system is divided.
And when the high-temperature geothermal water stored in the primary heat storage water tank cannot meet the heat load of a user, the geothermal well water production system is operated to stride over the primary heat storage water tank, so that the high-temperature geothermal water directly enters the primary plate heat exchanger to supply heat for the user.
The recharge water storage tank of the system is connected with the geothermal well, and the system adopts a mode of uninterruptedly and naturally recharging geothermal tail water for 24 hours. Because the geothermal tail water enters the recharge water storage tank only when the system stores heat and the recharge is continuously carried out, the volume of the needed recharge water storage tank is much smaller than that of the heat storage water tank, and the volume is 600m 3 The recharging requirement can be met, the cost of the recharging water storage tank is effectively reduced, and the number of recharging wells is also reduced.
The invention has the advantages and positive effects that:
1. in the primary regulation and storage heating system, the heat storage water tank is arranged in front and is not directly connected with a user, but the plate heat exchanger is used for heating the user, the heat storage water tank can store high-temperature geothermal water, the volume of the heat storage water tank can be reduced under the same heating load, the side water pressure of the user is not influenced by the water tank, and the hydraulic imbalance phenomenon is reduced.
2. The invention adopts a double-heat-source mode to store energy for the heat storage water tank, and one mode is that high-temperature geothermal water produced from a geothermal well directly enters a primary heat storage water tank to store heat; the other type is a heat pump system, when the first-stage heat storage water tank stores high-temperature geothermal water, the warm water after primary utilization enters the second-stage regulation and storage heating system, and then the heat is exchanged through the second-stage plate heat exchanger, and the heat is stored for the second-stage heat storage water tank through the heat pump unit.
3. The invention is provided with a standby scheme, and when the secondary heat storage water tank cannot meet the heating requirement of a user, in order to avoid the heat pump unit from running in a power utilization peak period, circulating water at the user side in the primary regulation and storage heating system is shunted to supply heat for the user of the secondary regulation and storage heating system. When user's heat load is too big, when one-level heat storage water tank also can't satisfy user's heating demand, can open one-level heat storage pump, adopt geothermal water directly to get into one-level plate heat exchanger for user's mode of heating. The heat storage mode of double heat sources or the standby scheme of the system are adopted, so that the heating capacity of the system is improved, and the user can be heated to the maximum extent.
4. The invention adopts a mode of continuously and naturally recharging the geothermal tail water for 24 hours and is provided with the recharging water storage tank, thereby improving the recharging capability of the system, reducing the number of recharging wells, reducing the cost to a certain extent and improving the feasibility of the system.
5. The geothermal heating system for the public building is scientific and reasonable in design, adopts the geothermal heating and energy storage coupling technology, realizes the twice utilization of geothermal water by utilizing the primary regulation and storage heating system and the secondary regulation and storage heating system, reduces the temperature of geothermal tail water, improves the utilization rate of geothermal energy resources, reduces the resource waste, and meanwhile, stores energy for the system in the valley power utilization period according to the operation strategy of peak-valley power price, thereby not only reducing the power load, but also reducing the operation cost of the system, realizing low-cost heating and improving the economic benefit and social benefit of the system.
Drawings
FIG. 1 is a schematic view of the geothermal heating system for public buildings according to the present invention,
in the figure: a geothermal well 1 first-stage heat storage pump 2 first-stage heat storage water tank 3 first-stage circulating pump 4 first-stage plate heat exchanger 5 first-stage heating pump 6 user 7 second-stage heating pump 8 second-stage heat storage pump 9 second-stage circulating pump 10 middle circulating pump 11 recharging storage water tank 12 second-stage plate heat exchanger 13 heat pump unit 14 second-stage heat storage water tank 15.
Detailed Description
The present invention is further illustrated by the following specific examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
A public building geothermal heating system with functions of heating, collecting and irrigating, regulating and storing comprises a geothermal well heating system, a primary regulating and storing heating system and a secondary regulating and storing heating system, wherein the primary regulating and storing heating system comprises a primary heat storage pump 2, a primary heat storage water tank 3, a primary circulating pump 4, a primary plate heat exchanger 5 and a primary heating pump 6; the second-stage regulation and storage heating system comprises a second-stage circulating pump 10, a second-stage plate heat exchanger 13, an intermediate circulating pump 11, a heat pump unit 14, a second-stage heat storage pump 9, a second-stage heat storage water tank 15 and a second-stage heating pump 8.
The geothermal well heating and irrigating system is a single-well heating and irrigating system and comprises a geothermal well 1 and a recharging water storage tank 12, a primary heat storage water tank is connected with the geothermal well through a primary heat storage pump, during off-peak electricity, high-temperature geothermal water produced by the geothermal well enters the primary heat storage water tank through the primary heat storage pump, hot water in the water tank enters a primary plate heat exchanger through a primary circulating pump to transfer heat to circulating water on a user side through the primary heat storage pump so as to supply heat for a user 7, warm water after primary utilization in the primary heat storage water tank enters a secondary plate heat exchanger through an intermediate circulating pump to release heat and then flows into the recharging water storage tank to recharge, the circulating water absorbs heat through the secondary plate heat exchanger and then flows to a heat pump unit through a secondary circulating pump, and the heat pump unit operates to store the circulating water in the secondary heat storage water tank through the secondary heat storage pump so as to supply heat for the user side through the secondary heating pump.
According to the water storage capacity of 100t/h, the heating requirement of a user can be met after the first-stage heat storage pump works for 8-10 hours, and the volume of the first-stage heat storage water tank body is about 1000m 3 . When the primary regulation and storage heating system stores energy, the heat pump unit in the secondary regulation and storage heating system operates, the circulating water on the user side is heated through the working medium after the heat is absorbed by the secondary plate heat exchanger, and the heated circulating water enters the secondary heat storage water tank under the action of the secondary heat storage pump to store heat for the user.
The recharge water storage tank of the system is connected with the geothermal well, and the system adopts a mode of uninterruptedly and naturally recharging geothermal tail water for 24 hours. Because the geothermal tail water enters the recharge water storage tank only when the system stores heat and the recharge is continuously carried out, the volume of the needed recharge water storage tank is much smaller than that of the heat storage water tank, and the volume is 600m 3 Thereby meeting the recharging requirement.
The working process and the working principle of the invention are as follows:
in order to reduce the electric load and the operating cost of the system, heat is stored in the electricity utilization valley period, and the heat storage process is carried out for 8-10 hours. High-temperature geothermal water (70-80 ℃) extracted from the geothermal well enters a primary heat storage water tank for heat storage through a primary heat storage pump, and meanwhile, the utilized warm water (about 50 ℃) in the water tank flows through a secondary plate heat exchanger under the action of a secondary circulating pump and releases heat to become low-temperature geothermal tail water (about 10 ℃) which flows into a recharge water storage tank and then is recharged to the underground through the geothermal well. And meanwhile, the heat pump unit operates, circulating water absorbs heat through the secondary plate heat exchanger and flows to the heat pump unit, and heat is transferred to the circulating water at the user side and enters the secondary heat storage water tank to store heat for users.
When a user has a heating demand, in the primary regulation and storage heating system, high-temperature geothermal water in the primary heat storage water tank flows through the primary plate heat exchanger through the primary circulating pump to release heat and then flows back to the primary heat storage water tank, and user side circulating water absorbs heat through the primary plate heat exchanger and then supplies heat to the user under the action of the primary heating pump; in the secondary regulation and storage heating system, warm water in the secondary heat storage water tank directly passes through the secondary heating pump to supply heat for users.
When the heat stored in the secondary heat storage water tank can not meet the requirements of users, one of the standby schemes can be started, namely the user side circulating water in the primary storage heating system is divided. When the high-temperature geothermal water stored in the first-stage heat storage water tank cannot meet the heat load of a user, the geothermal well water production system can be operated to stride over the first-stage heat storage water tank, so that the high-temperature geothermal water directly enters the first-stage plate heat exchanger to supply heat for the user.
Although the embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the embodiments disclosed.
Claims (5)
1. The utility model provides a public building geothermol power is adopted and is irritated regulation and storage heating system which characterized in that: the system comprises a geothermal well heating and irrigating system, a primary storage and heating system and a secondary storage and heating system, wherein the primary storage and heating system comprises a primary heat storage pump, a primary heat storage water tank, a primary circulating pump, a primary plate heat exchanger and a primary heating pump; the secondary storage and heating system comprises a secondary circulating pump, a secondary plate heat exchanger, a middle circulating pump, a heat pump unit, a secondary heat storage pump, a secondary heat storage water tank and a secondary heating pump, the geothermal well pumping and filling system is a single well pumping and filling system and comprises a geothermal well and a recharge water storage tank, the primary heat storage water tank of the primary storage and heating system is connected with the geothermal well through the primary heat storage pump, high-temperature geothermal water pumped by the geothermal well enters the primary heat storage water tank through the primary heat storage pump, hot water in the water tank enters the primary plate heat exchanger through the primary circulating pump to transfer heat to circulating water on a user side through the primary heat supply pump so as to heat a user, warm water subjected to primary utilization in the primary heat storage water tank of the primary storage and heating system flows into the recharge water storage tank through the middle circulating pump after entering the secondary plate heat exchanger of the secondary storage and heating system to release heat, the circulating water flows into the recharge water storage tank through the secondary plate heat exchanger and then flows to the heat pump unit through the secondary circulating pump unit, and the circulating water is stored in the secondary heat storage tank through the secondary heat storage water through the secondary heat storage pump unit, and then serves as a user side through the secondary heating pump.
2. An operation method of a geothermal mining, filling, regulating, storing and heating system of a public building is characterized in that: the system stores heat during the electricity consumption valley period, the heat storage process is carried out for 8-10 hours, high-temperature geothermal water at 70-80 ℃ extracted from a geothermal well enters a primary heat storage water tank for heat storage through a primary heat storage pump of a primary regulation and storage heating system, meanwhile, warm water at 50-60 ℃ utilized in the water tank flows through a secondary plate heat exchanger under the action of a secondary circulating pump of the secondary regulation and storage heating system and releases heat, low-temperature geothermal tail water below 10 ℃ flows into a recharge water storage tank and then is recharged underground through the geothermal well, meanwhile, the heat pump unit operates, circulating water absorbs heat through the secondary plate heat exchanger and then flows to the heat pump unit, and the heat is transferred to circulating water at a user side and enters the secondary heat storage water tank for heat storage for use by users.
3. The operation method of the utility building geothermal heating system for extraction, irrigation, regulation, storage and heating according to claim 2, characterized in that: when a user has a heating demand, in the primary regulation and storage heating system, high-temperature geothermal water in the primary heat storage water tank flows through the primary plate heat exchanger through the primary circulating pump to release heat and then flows back to the primary heat storage water tank, and user side circulating water absorbs heat through the primary plate heat exchanger and then supplies heat to the user under the action of the primary heating pump; in the second-stage regulation and storage heating system, warm water in the second-stage heat storage water tank directly passes through the second-stage heating pump to supply heat for users.
4. A method of operating a geothermal heating system for a utility building according to claim 2 or claim 3 wherein: and when the heat stored in the secondary heat storage water tank cannot meet the user requirement, circulating water on the user side in the primary regulation and storage heating system is divided.
5. A method of operating a geothermal heating system for a utility building according to claim 2 or claim 3 wherein: when the high-temperature geothermal water stored in the first-stage heat storage water tank cannot meet the heat load of a user, the geothermal well water production system is operated to stride over the first-stage heat storage water tank, so that the high-temperature geothermal water directly enters the first-stage plate heat exchanger to supply heat for the user, and the heating capacity of the system is improved.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210861343.1A CN115342408A (en) | 2022-07-22 | 2022-07-22 | Public building geothermal energy collecting, filling, regulating, storing and heating system and operation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210861343.1A CN115342408A (en) | 2022-07-22 | 2022-07-22 | Public building geothermal energy collecting, filling, regulating, storing and heating system and operation method |
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| CN115342408A true CN115342408A (en) | 2022-11-15 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204880311U (en) * | 2015-08-19 | 2015-12-16 | 天津城建大学 | Phase -change thermal peak regulation ground steam heat supply system |
| KR101834156B1 (en) * | 2017-05-24 | 2018-04-19 | 한국공조(주) | Cooling and heating system using terrestrial heat |
| CN208253697U (en) * | 2018-04-11 | 2018-12-18 | 天津市燃气热力规划设计研究院有限公司 | A kind of geothermal heating operating system of accumulation of heat and multistage terminal user's combined heat |
| CN210485875U (en) * | 2019-08-23 | 2020-05-08 | 中国科学院广州能源研究所 | Energy storage type geothermal heating system capable of consuming intermittent energy |
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2022
- 2022-07-22 CN CN202210861343.1A patent/CN115342408A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204880311U (en) * | 2015-08-19 | 2015-12-16 | 天津城建大学 | Phase -change thermal peak regulation ground steam heat supply system |
| KR101834156B1 (en) * | 2017-05-24 | 2018-04-19 | 한국공조(주) | Cooling and heating system using terrestrial heat |
| CN208253697U (en) * | 2018-04-11 | 2018-12-18 | 天津市燃气热力规划设计研究院有限公司 | A kind of geothermal heating operating system of accumulation of heat and multistage terminal user's combined heat |
| CN210485875U (en) * | 2019-08-23 | 2020-05-08 | 中国科学院广州能源研究所 | Energy storage type geothermal heating system capable of consuming intermittent energy |
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