CN220119589U - Multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device - Google Patents
Multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device Download PDFInfo
- Publication number
- CN220119589U CN220119589U CN202321385905.6U CN202321385905U CN220119589U CN 220119589 U CN220119589 U CN 220119589U CN 202321385905 U CN202321385905 U CN 202321385905U CN 220119589 U CN220119589 U CN 220119589U
- Authority
- CN
- China
- Prior art keywords
- heat
- pump
- water
- water tank
- heat storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005338 heat storage Methods 0.000 title claims abstract description 50
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 188
- 230000006835 compression Effects 0.000 claims abstract description 19
- 238000007906 compression Methods 0.000 claims abstract description 19
- 238000010521 absorption reaction Methods 0.000 claims abstract description 8
- 238000010992 reflux Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 11
- 230000000295 complement effect Effects 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses a multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device which comprises a solar heat absorption plate, a heat storage water tank and a shallow geothermal heat exchanger. The solar heat absorption plate is connected with the heat storage water tank through a pipeline for water delivery; the heat storage water tank is connected with the shallow geothermal heat exchanger through a first branch of the water tank heat circulating water pump, and is connected with a building user for water supply through a second branch of the water tank heat circulating water pump and an electric compression heat pump; the heat storage water tank flows back to the solar heat absorbing plate through the solar hot water circulating water pump. The device firstly prepares hot water through the solar heat absorption plate and places the hot water in the heat storage water tank, and provides hot water at the heat source side for the heat pump in winter, so that the heat pump is ensured to operate in a high-efficiency state; the shallow geothermal heat exchanger provides heat source water in winter for the heat pump and forms a complementary mode in solar hot water; the shallow soil absorbs building heat converted by the heat pump in summer and provides cold for building users; meanwhile, the problem of unbalanced cold and hot is solved in the transition season.
Description
Technical Field
The utility model belongs to the field of clean energy supply, and is mainly applied to buildings or systems with cold and hot load demands in winter and summer, in particular to a multi-energy combined heat storage and release balanced type energy-saving low-carbon cold and hot supply device.
Background
With the adjustment of the energy structure in China, more and higher requirements are put forward for energy utilization systems in the building industry under the guidance of a double-carbon target, the running energy consumption of the national building accounts for more than 20% of the total energy consumption of the whole society, wherein the proportion of the building heating energy consumption in the building running energy consumption is more than 20%, so that the cold and hot demand building belongs to a key energy-saving object, and the energy-saving system also has the potential of low-carbon running. At present, the conversion of building energy mainly uses clean energy, and the traditional mode of adopting a boiler or a water chilling unit cannot meet the cleaning requirement on one hand, cannot realize the aim of low-carbon operation on the other hand, and is replaced by the clean energy step by step in specific practice. Along with the construction of energy-saving buildings, cleaning force is required to be increased in the aspect of building operation, a renewable energy system is preferentially selected, and a mature application road is explored in the aspects of building cooling and heating.
It is known that the current production and manufacture of the solar heat collection device have new breakthroughs, so that the input cost of the solar heat collection device is greatly reduced, and meanwhile, the efficiency of the heat collection device also reduces the area for the occupied area application of the solar heat collection device, so that more space is available for solar energy utilization. In addition, the geothermal resources in China are rich, and especially shallow geothermal has more application practices, and the shallow geothermal has popularization conditions after long-time project use. The temperature gradient of the existing detected geothermal heat is 3-5 ℃ for heating every hundred meters, the temperature difference of 3-5 ℃ meets the use condition of the heat pump for shallow geothermal heat, the maturation and the large-scale application of the heat pump technology provide favorable conditions for the use of the shallow geothermal heat, however, the unit heat extraction of the shallow geothermal heat is less, the required field occupation area is larger, and certain limitation is provided in the practical application, but the heat balance is the most critical stable precondition for the shallow geothermal heat.
The device uses solar energy as a main energy source, so that balance of shallow geothermal energy can be ensured, proper heat source water can be provided for the heat pump, the electric compression heat pump provides cold energy for a building in summer, heat is exchanged into shallow soil, heat is obtained from the soil through the heat pump in winter, and insufficient heat is obtained from the heat storage water tank. The device is popularized and used in a cold and hot supply system, and can achieve the application effect of cleaning low carbon.
Disclosure of Invention
The utility model aims to provide cold and heat service for buildings by utilizing solar heat collection, water storage and heat storage, heat pump and shallow geothermal technology, meets the application requirements of multi-energy combination, has the characteristic of clean low-carbon energy supply, can ensure heat storage and release balance in winter and summer, and belongs to an environment-friendly energy application system device.
The utility model relates to a multi-energy combined heat-accumulating and heat-releasing balance type energy-saving low-carbon cold and hot supply device which comprises a solar heat-absorbing plate 1 and a heat-accumulating water tank 4.
The solar heat absorbing plate 1 is connected with the heat storage water tank 4 through a pipeline for water delivery; the heat storage water tank 4 is connected with the shallow geothermal heat exchanger 8 through a first branch of the water tank heat circulating water pump 5, and is connected with a building user 14 through an electric compression heat pump 12 for water supply through a second branch of the water tank heat circulating water pump 5; the water return pipe of the building user 14 is connected with the heat storage water tank 4 through a user circulating water pump 13, an electric compression heat pump 12 and a heat pump heat source side circulating water pump 11; the heat storage water tank 4 flows back to the solar heat absorbing plate 1 through the solar hot water circulating water pump 2. The heat pump heat source side circulating water pump 11 and the water return pipeline of the heat storage water tank 4 are provided with a heat control valve 6 for the water tank. The water outlet end of the shallow geothermal heat exchanger 8 is communicated with the heat storage water tank 4 for backwater through a heat control valve 6 for the water tank.
Further, a hot water tank temperature transmitter 3 is arranged in the hot water tank 4.
Further, a shallow geothermal control valve 7 is arranged between the first branch of the thermal circulating water pump 5 and the shallow geothermal heat exchanger 8.
Further, a heat pump water inlet control valve 9 is arranged between the second branch of the heat circulating water pump 5 and the electric compression heat pump 12.
Further, a heat pump water outlet control valve 10 is provided on the heat pump heat source side water circulating pump 11 side.
Further, the solar hot water circulating water pump 2, the heat storage water tank temperature transmitter 3, the heat storage water tank heat circulating water pump 5, the water tank heat control valve 6, the shallow geothermal control valve 7, the heat pump water inlet control valve 9, the heat pump water outlet control valve 10, the heat pump heat source side circulating water pump 11 and the user circulating water pump 13 are all electrically connected with the centralized controller 15.
Further, the water delivery, water supply and backflow components are all pipelines.
Further, the number of the shallow geothermal heat exchangers 8 is plural, and the shallow geothermal heat exchangers 8 are arranged in parallel.
Compared with the prior art, the device firstly prepares hot water through the solar heat absorption plate and places the hot water in the heat storage water tank, and provides hot water at the heat source side for the heat pump in winter, so that the heat pump is ensured to operate in a high-efficiency state; on the other hand, the shallow geothermal heat exchanger can also provide heat source water in winter for the heat pump and form a complementary mode in solar hot water; in addition, the shallow soil absorbs building heat converted by the heat pump in summer and provides cold for building users; meanwhile, in transitional seasons, because more building users and large loads are needed in winter, the phenomenon of cold and heat unbalance occurs in shallow geothermal heat, and the hot water produced by the solar energy is used for circularly heating soil so as to solve the problem of cold and heat unbalance. The heat pump operates based on water temperature measured by a heat source, the heat storage water tank of solar energy is preferentially utilized, shallow geothermal energy is utilized when the requirement is not met, the heat pump equipment is ensured to operate under a higher performance index, electricity is saved, and energy efficiency is improved. In the process, the centralized controller is used for controlling the circulating water pump and the control valve to meet the operation requirement, so that the energy-saving low-carbon operation purpose of the device is achieved.
1)
Drawings
FIG. 1 is a schematic diagram of a multi-energy combined heat and storage balanced energy-saving low-carbon cold and hot supply device.
In the figure: 1-a solar absorber plate; 2-a solar hot water circulating water pump; 3-a heat storage water tank temperature transmitter;
4-a heat storage water tank; 5-a heat circulating water pump for the water tank; 6-a heat control valve for the water tank;
7-shallow geothermal control valve; 8-a shallow geothermal heat exchanger; 9-a heat pump water inlet control valve;
10-a heat pump water outlet control valve; 11-a heat pump heat source side circulating water pump; 12-an electric compression heat pump;
13-a user circulating water pump; 14-building users; 15-centralized controller.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and examples.
The technical scheme adopted by the utility model is that the multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device mainly uses solar energy, hot water is prepared through the solar heat absorption plate and is placed in the heat storage water tank, heat is respectively provided for shallow soil and a heat pump, and the cold and hot load supply of the heat pump to a building user is met. The method realizes the effective utilization of solar energy and achieves the aim of energy-saving and low-carbon operation. It should be understood by those skilled in the art that the body of the device of the present utility model is a structural whole, and in order to enable those skilled in the art to understand the operation of the device, relevant control procedure descriptions and corresponding adjustment strategies are cited, which are not included in the protective body and the necessary technical conditions of the device of the present utility model.
After the device is put into operation, through the centralized controller, whether the temperature of the heat storage water tank meets the requirement of the water inlet temperature of the heat pump is monitored, and meanwhile, the opening and the closing of different circulating water pumps and control valves are controlled, so that the preparation of solar hot water, the cold and hot load supply of a building user, the conversion of the refrigerating and heating energy of the heat pump and the guarantee of the shallow geothermal cold and hot balance circulation are completed. The hot water in the water tank is preferentially utilized in winter, the temperature is not lower than 15 ℃, and the heat pump is ensured to operate efficiently. The device introduces solar energy and geothermal energy into the system simultaneously as the source of system energy, so that the advantage of clean energy supply can be achieved, the basis can be provided for the comprehensive utilization of multiple energy, meanwhile, the problem of soil cold and heat balance is also considered, the resource environment is not influenced, and all the devices are associated together through the centralized control program, so that the purpose of integrated comprehensive management and control is achieved. Compared with the traditional boiler heating and cooling machine cooling, the device belongs to a clean low-carbonization technical route, and contributes to development and implementation of a novel energy supply mode.
Example 1
The implementation process of the device is as follows:
s1, collecting solar radiation heat by a solar heat absorbing plate 1, and circularly heating water in a heat storage water tank 4 by a solar hot water circulating water pump 2. In winter, solar energy is utilized to heat water to a certain temperature, the temperature change of the water is monitored by the heat storage water tank temperature transmitter 3, and the water is used as hot water for measuring the heat source of the electric compression heat pump 12 under the condition that the water temperature is not lower than 15 ℃.
S2, heat generated by a building user 14 in summer is exchanged into the shallow geothermal heat exchanger 8 through the electric compression heat pump 12, and the building heat is absorbed through the constant temperature effect of soil. In the process, the heat pump heat source side circulating water pump 11, the shallow geothermal control valve 7 and the heat pump water inlet control valve 9 are required to be opened simultaneously to complete the circulation of heat transfer, and the control of the control valve and the water pump is realized through the centralized controller 15.
S3, as the total heating load in winter is larger than the total cooling load in summer, the problem of unbalance in winter and summer with more heat and less cold is solved for shallow geothermal heat, and hot water is provided for the shallow geothermal heat exchanger 8 in transitional seasons through the hot water storage tank 4, the hot water circulating pump 5 for the water tank, the heat control valve 6 for the water tank and the shallow geothermal control valve 7 to restore the cold-heat balance of soil.
S4, the building user 14 provides cold energy and heat through the electric compression heat pump 12 in summer and winter, the user circulating water pump 13 bears cold and heat transmission and distribution of heat pump production, the load is continuously sent to the user, and the regulation and control of the circulating water pump are realized through the centralized controller 15, so that the user requirements are met.
Example 2
The method comprises the following steps:
s1, constructing a shallow geothermal heat exchanger 8 through shallow geothermal exploration and drilling technology, wherein the interval is not less than 3 meters. In summer, the condenser of the electric compression heat pump 12 is used for heat exchange, heat from a building user 13 is transferred to circulating water of the shallow geothermal heat exchanger 8, and at the moment, the heat pump heat source side circulating water pump 11, the shallow geothermal control valve 7 and the heat pump water inlet control valve 9 are opened, and other devices are closed at the same time, so that a summer cooling mode is realized, cooling capacity is provided for the building user 14, and cooling requirements are met.
S2, a solar heat absorbing plate 1 and a heat storage water tank 4 are arranged, circulating water tank water is continuously heated through a solar hot water circulating water pump 2, the heat storage water tank 4 has a water storage and heat preservation function, loss of acquired solar heat is reduced, and meanwhile water temperature is monitored by means of a heat storage water tank temperature transmitter 3. When the solar heat pump is operated in winter mode, the heat circulation water pump 5 for the water tank, the heat pump water inlet control valve 9, the heat pump water outlet control valve 10 and the heat control valve 6 for the water tank are opened, other equipment is closed, hot water in the water tank is conveyed to the evaporator of the electric compression heat pump 12, heat is transferred to a refrigerant medium, meanwhile, the water in the water tank is continuously released, the temperature is gradually reduced, and the process is used for effectively transferring and utilizing solar energy.
And S3, during winter operation, when the water temperature of the water tank does not meet the requirement of 15 ℃ of the water inlet temperature of the heat pump, particularly during night time in winter, according to the water tank temperature monitored by the centralized controller 15, starting the heat pump heat source side circulating water pump 11, the shallow geothermal control valve 7 and the heat pump water inlet control valve 9, closing other devices, acquiring heat from soil through the shallow geothermal heat exchanger 8, compensating the problem of insufficient solar heat in winter, and maximally meeting the winter load requirement of a building user 14.
S4, because the cold and hot loads are uneven due to different building areas in winter and summer, the winter load is larger than the summer load, and before the winter arrives after the summer, the heat circulation water pump 5 for the water tank, the heat control valve 6 for the water tank and the shallow geothermal control valve are opened through the centralized controller 15, and other devices are closed, so that the heat is supplemented for the shallow geothermal by utilizing the solar energy, and the heat taking requirement in winter is met.
S5, in summer, circulating water of a building user 14 enters an evaporator of the electric compression heat pump 12 to transfer heat to a refrigerant medium, and then the heat is transferred out through a condenser of the electric compression heat pump 12; in winter, the circulating water of the building user 14 enters the condenser of the electric compression heat pump 12, the refrigerant medium releases heat to the circulating water of the user, and the heat is obtained through the evaporator of the electric compression heat pump 12 at the heat source. The above process achieves the heat and cold transfer between the user's desired heat and cold load and the electric compression heat pump 12.
Through the implementation steps, the device solves the cold and heat loads for the building, realizes the comprehensive utilization of solar energy and geothermal energy, exerts the annual existence condition of solar energy, and solves the problem of soil cold and heat imbalance existing in the actual use of the current shallow geothermal energy. From the clean energy supply angle, the main energy sources of the device are solar energy and geothermal energy, which are renewable new energy sources which are developed and explored and used currently, so that the low-carbonization application of the energy system for the building is realized. From the angle of energy utilization, the solar energy collecting device on one hand makes up uneven heat and cold for shallow geothermal energy, provides certain domestic hot water in summer, meets the requirements of the domestic hot water in summer in a factory or a machine room where the solar energy collecting device is positioned, and improves the solar energy utilization rate; on the other hand, solar energy and geothermal energy are alternately powered in all weather during winter operation, and a multi-energy complementary energy supply system is displayed. The device also uses the centralized control regulator as a regulation basis to control the on-off and operation of each device, so that the dual effects of the combination of the intellectualization and the low carbonization are realized, the operation efficiency of the device can be improved, the intelligent control of the system can be embodied, and the device is also a necessary condition for pushing clean energy to explore and apply.
Claims (8)
1. The multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device is characterized by comprising a solar heat absorption plate (1), a heat storage water tank (4) and a shallow geothermal heat exchanger (8);
the solar heat absorption plate (1) is connected with the heat storage water tank (4) through a pipeline for water delivery; the heat storage water tank (4) is connected with the shallow geothermal heat exchanger (8) through a first branch of the water tank heat circulation water pump (5), and is connected with a building user (14) through an electric compression heat pump (12) through a second branch of the water tank heat circulation water pump (5); the water return pipe of the building user (14) is connected with the heat storage water tank (4) through the user circulating water pump (13), the electric compression heat pump (12) and the heat pump heat source side circulating water pump (11); the heat storage water tank (4) flows back to the solar heat absorption plate (1) through the solar hot water circulating water pump (2); a water tank heat control valve (6) is arranged on the water return pipeline of the heat pump heat source side circulating water pump (11) and the heat storage water tank (4); the water outlet end of the shallow geothermal heat exchanger (8) is communicated with the heat storage water tank (4) for backwater through a heat control valve (6) for the water tank.
2. The multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device according to claim 1, wherein a heat storage water tank temperature transmitter (3) is arranged in the heat storage water tank (4).
3. The multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device according to claim 2, wherein a shallow geothermal control valve (7) is arranged between a first branch of the thermal circulating water pump (5) and the shallow geothermal heat exchanger (8).
4. The multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device according to claim 3, wherein a heat pump water inlet control valve (9) is arranged between the second branch of the heat circulating water pump (5) and the electric compression heat pump (12).
5. The multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device according to claim 4, wherein a heat pump water outlet control valve (10) is arranged on the heat pump heat source side circulating water pump (11) side.
6. The multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device according to claim 5 is characterized in that a solar hot water circulating water pump (2), a heat storage water tank temperature transmitter (3), a water tank heat circulating water pump (5), a water tank heat control valve (6), a shallow geothermal control valve (7), a heat pump water inlet control valve (9), a heat pump water outlet control valve (10), a heat pump heat source side circulating water pump (11) and a user circulating water pump (13) are electrically connected with a centralized controller (15).
7. The multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device according to claim 1, wherein the water delivery, water supply and reflux components are all pipelines.
8. The multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device according to claim 1, wherein the number of the shallow geothermal heat exchangers (8) is multiple, and the shallow geothermal heat exchangers (8) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321385905.6U CN220119589U (en) | 2023-06-02 | 2023-06-02 | Multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321385905.6U CN220119589U (en) | 2023-06-02 | 2023-06-02 | Multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220119589U true CN220119589U (en) | 2023-12-01 |
Family
ID=88917073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321385905.6U Active CN220119589U (en) | 2023-06-02 | 2023-06-02 | Multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220119589U (en) |
-
2023
- 2023-06-02 CN CN202321385905.6U patent/CN220119589U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101650098B (en) | Solar energy-ground source heat pump self-balancing comprehensive application system | |
| CN202253940U (en) | Solar-soil source heat pump type composite energy system used in cold area | |
| CN201488394U (en) | Solar energy-ground source heat pump self-balancing integrated application system | |
| CN104315629B (en) | Buried pipe ground source heat pump system and method using peak power for assisting cold/heat storage | |
| CN101403521B (en) | Solar energy absorption type refrigeration and ground source heat pump coupling combined supplying system | |
| CN202485071U (en) | Solar phase change heat storage and capillary network radiant heating device | |
| CN104344603B (en) | Utilize buried pipe ground-source heat pump system and the method for paddy electricity auxiliary heat supplying/cooling | |
| CN101144632A (en) | Solar energy and integral composite energy system for architecture | |
| CN101893299A (en) | Solar adsorption type air-conditioning system based on phase change cold accumulation | |
| CN216716614U (en) | Wind-solar-electric-heat complementary cold-hot water dual-supply system | |
| CN103900287A (en) | Heat exchange system in combined operation of solar energy and geothermal energy | |
| CN110145796A (en) | A kind of micro- energy net of solar energy support | |
| CN201259282Y (en) | Complete thermal recovery energy accumulation type Geothermal pump central air-conditioning system | |
| CN106931674A (en) | A kind of solar energy combines the double heat source heat pump and across season energy-storage system of energy supply with soil source | |
| CN205919556U (en) | Solar energy earth source heat pump coupling energy supply system | |
| CN104482691B (en) | Ground-source heat pump system obtaining heat from environment and operation method thereof | |
| CN101776352A (en) | Ground source heat pump system applying system to recover heat and control method thereof | |
| CN103216895A (en) | Air source heat pump assisted solar comprehensive heating and air-conditioning system | |
| CN219103112U (en) | Multi-energy coupling low-carbon energy supply system for existing communities in cold regions | |
| CN211176992U (en) | Air energy ground source heat pump concurrent heating system | |
| CN220119589U (en) | Multi-energy combined heat storage and release balance type energy-saving low-carbon cold and hot supply device | |
| CN204345836U (en) | The geothermal heat pump air-conditioning system of high temperature retaining independent temperature-humidity control | |
| CN115751746A (en) | Zero-carbon energy supply system of shallow layer and middle and deep layer geothermal energy coupling light storage system | |
| CN216307947U (en) | Multi-energy complementary heat source system | |
| CN201662280U (en) | Earth source heat pump system using system heat recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |