CN210602094U - Heat supply and air conditioning system for agricultural room - Google Patents
Heat supply and air conditioning system for agricultural room Download PDFInfo
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- CN210602094U CN210602094U CN201921845751.8U CN201921845751U CN210602094U CN 210602094 U CN210602094 U CN 210602094U CN 201921845751 U CN201921845751 U CN 201921845751U CN 210602094 U CN210602094 U CN 210602094U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 24
- 239000002689 soil Substances 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 abstract description 3
- 241000283984 Rodentia Species 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
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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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Abstract
The utility model provides a pair of heat supply and air conditioning system that can be used to rural power house, bury tuber pipe, outdoor side blast valve, indoor side blast valve, outdoor air intake, protection against rodents net, coarse filter and indoor return air inlet including rural power house, low ambient temperature air source heat pump air heater, tunnel wind send wind gap, tunnel wind send fan, well high-efficient filter, ground. Based on the shallow geothermal energy utilization technology, shallow geothermal energy resources are obtained through the underground air pipes, and when the cold and heat load is small, summer cold supply and winter heat supply of the farm houses are realized; when the cold and heat load is large, the precooling and preheating of the indoor fresh air are realized while the air source heat pump air heater with low environmental temperature supplies cold or heat, and the requirement of the fresh air of a human body is met. Rural land resources are abundant, and the buried air pipe is suitable for being arranged, and two forms of horizontal arrangement and vertical arrangement are provided for newly-built farmhouse and existing farmhouse transformation. The energy-saving device is good in overall energy-saving performance and suitable for being used in the farm houses with heat supply and cold supply requirements.
Description
Technical Field
The utility model belongs to the air conditioner field relates to air conditioning system, concretely relates to heat supply and air conditioning system that can be used to rural house.
Background
With the increasing living standard of farmers, the construction of rural residential buildings is rapidly updated, the energy consumption level of rural areas is continuously increased, especially in northern rural areas, the heat supply is a large energy consumption family, and the coal and firewood are still the main heat supply mode in rural areas at the present stage. In 2017, in 3 months, "architecture energy conservation and green architecture development" thirteen-five "planning" printed by Ministry of housing and construction definitely takes "actively promoting rural architecture energy conservation" as one of main tasks, on one hand, the requirement is tightly combined with rural practice, a rural soil green energy-saving technology meeting the practical requirement is summarized, a test-point demonstration is actively developed, energy-saving green farm house construction is guided, on the other hand, renewable energy sources such as solar energy and the like are required to be actively adopted to meet the energy utilization requirement of the farm houses, and the structure adjustment of the energy utilization of the rural architecture is actively promoted.
The rural areas have wide land and rich shallow geothermal energy resources, and the shallow geothermal energy utilization technology is vigorously developed, so that the heat supply and air conditioning energy consumption of the rural houses can be reduced, and the indoor thermal comfort of the rural houses is improved. The temperature of the shallow soil fluctuates little all the year round, and in summer, the temperature of the shallow soil is obviously lower than the outdoor air temperature; in winter, the temperature of shallow soil is obviously higher than that of outdoor air, so that the precooling or preheating of outdoor fresh air can be realized through the tunnel air cooling or heating technology, and the fresh air load is greatly reduced. Meanwhile, the traditional rural heat supply adopts firewood or coal-fired furnaces, the heat supply effect is poor and the environment is polluted, although the split air conditioner adopts clean energy for heat supply, the installation position of the indoor unit is higher, hot air is easy to gather on the ceiling of a room during heat supply in winter, cold air gathering is easy to form in the heat supply space close to the ground, the main activity space of a human body is in the middle and lower layer space of the room, the problems of 'head and feet are cool' and the like caused by poor air flow organization are solved, the heat supply effect is poor, and the thermal comfort of the human body is poor.
Disclosure of Invention
An object of the utility model is to provide a heat supply and air conditioning system that can be used to rural power house, this heat supply and air conditioning system are based on shallow geothermal energy utilization technique, bury the tuber pipe through ground and acquire shallow geothermal energy resource, realize the precooling and the preheating of summer cooling, winter heat supply and the new trend of rural power house, adopt low ambient temperature air source heat pump air heater to be supporting cold source and heat source simultaneously, realize good indoor thermal comfort and energy-conserving effect.
The utility model provides a heat supply and air conditioning system that can be used to rural power house which characterized in that: the device comprises a farm room, a low-environment-temperature air source heat pump air heater, a tunnel air supply port, a tunnel air supply fan, a medium-high efficiency filter, a buried air pipe, an outdoor side air valve, an indoor side air valve, an outdoor air inlet, a rat-proof net, a coarse-effect filter and an indoor air return port;
the low-environment-temperature air source heat pump air heater comprises an outdoor unit and an indoor unit, wherein the indoor unit also comprises a heat pump air return inlet, a heat pump air supply outlet, a heat pump air feeder and an indoor unit heat exchanger;
the underground air pipe comprises an outlet section, an inlet section and a heat exchange section, wherein the outlet section and the inlet section are positioned above the ground, and the heat exchange section is positioned in shallow soil below the ground;
the indoor air return openings are uniformly arranged on a ceiling of the farm room and are connected with indoor side air valves; the outdoor air inlet, the rat-proof net and the coarse filter are sequentially arranged and are positioned outside the room, and the coarse filter is connected with an outdoor air valve; the outdoor side air valve and the indoor side air valve are simultaneously connected with an inlet section of the underground air pipe, the inlet section is connected with a heat exchange section, and the heat exchange section is connected with an outlet section; the tunnel air supply port, the tunnel air blower and the medium-high efficiency filter are sequentially arranged and are positioned at the indoor side, the medium-high efficiency filter is connected with the outlet section of the buried air pipe, and all the parts are connected by the air pipe.
The outdoor unit of the low-environment-temperature air source heat pump air heater is installed on the outdoor side of the agricultural room, the indoor unit is installed on the lower portion of the indoor side of the agricultural room, and the distance between the indoor unit and the ground of the agricultural room is not more than 20 cm.
The heat exchange section of the underground air pipe is formed by connecting a plurality of U-shaped air pipes, and the heat exchange section is integrally and horizontally arranged in shallow soil and is completely contacted with the soil.
The heat exchange section of the underground air pipe consists of an inner air pipe and an outer air pipe, the inner air pipe is arranged in the outer air pipe, the bottom end of the outer air pipe is sealed, the top end of the outer air pipe is tightly contacted with the inner air pipe, and the whole heat exchange section is vertically arranged in shallow soil and is completely contacted with the soil.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a heat supply and air conditioning system that can be used to agricultural room, based on shallow geothermal energy utilization technique, acquire shallow geothermal energy resource through burying the tuber pipe with ground, realize the precooling and the preheating of summer cooling, winter heat supply and new trend of agricultural room, wherein, bury the heat transfer section of tuber pipe with ground and divide into horizontal arrangement and vertical arrangement, to newly-built agricultural room, can bury the heat transfer section horizontal arrangement of tuber pipe with ground when the agricultural room ground is handled, the construction degree of difficulty is low, investment cost is low; for the existing agricultural houses, the heat exchange sections of the underground air pipes can be vertically arranged, the feasibility of system transformation is high, practical operation is easy, the occupied land area is small, geothermal energy resources at deeper positions can be utilized, and the utilization rate of geothermal resources is high.
Further, an air source heat pump air heater with low ambient temperature is adopted as an auxiliary cold source and a heat source; the energy consumption of the agricultural room is mainly heat supply in winter, and during heat supply, the low-environment-temperature air source heat pump air heater can generate good hot air clusters in the middle and lower layer spaces of the agricultural room due to the fact that the installation position of the indoor unit is low and the air supply outlet is close to the ground, so that the thermal comfort of a human body is improved.
Drawings
Fig. 1 is a schematic view of a heating and air conditioning system for a farm room according to the present invention;
FIG. 2 is a schematic view of a first buried air pipe of the present invention, which can be used in a heating and air conditioning system of a farm room;
FIG. 3 is a schematic view of a second buried air pipe of the present invention, which can be used in a heating and air conditioning system of a farm room;
FIG. 4 is a schematic view showing the use of a first function of the heat supply and air conditioning system for agricultural houses according to the present invention;
FIG. 5 is a schematic view showing a second function of the heat supply and air conditioning system for agricultural houses according to the present invention;
wherein, 1 is a farm room, 2 is a low ambient temperature air source heat pump air heater, 201 is an outdoor unit, 202-1 is a heat pump return air inlet, 202-2 is a heat pump air supply outlet, 202-3 is a heat pump air supply machine, 202-4 is an indoor unit heat exchanger, 3 is a ground air supply outlet, 4 is a ground air supply machine, 5 is a high efficiency filter, 6 is a buried air pipe, 601 is an outlet section, 602 is an inlet section, 603 is a heat exchange section, 603-1 is an inner air pipe, 603-2 is an outer air pipe, 7 is an outdoor side air valve, 8 is an indoor side air valve, 9 is an outdoor air inlet, 10 is a rat-proof net, 11 is a coarse filter, and 12 is an indoor return air inlet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model discloses general idea is: a heat supply and air conditioning system for a farm room realizes partial cold supply and heat supply requirements of the farm room by utilizing shallow geothermal energy, and meets indoor heat comfort requirements of the farm room in all weather by combining a low-environment-temperature air source heat pump air heater.
For the purpose of illustrating the technical content and the construction and purpose of the present invention in detail, reference will now be made in detail to the accompanying drawings.
As shown in fig. 1 to 3, the utility model discloses a heat supply and air conditioning system that can be used to the agricultural room, its characterized in that: the device comprises a farm room 1, a low-environment-temperature air source heat pump air heater 2, a tunnel air supply port 3, a tunnel air supply fan 4, a medium-high efficiency filter 5, a buried air pipe 6, an outdoor side air valve 7, an indoor side air valve 8, an outdoor air inlet 9, a rat-proof net 10, a coarse-effect filter 11 and an indoor air return port 12.
The low-environment-temperature air source heat pump air heater 2 comprises an outdoor unit 201 and an indoor unit 202, wherein the indoor unit 202 further comprises a heat pump air return inlet 202-1, a heat pump air supply outlet 202-2, a heat pump air supply machine 202-3 and an indoor unit heat exchanger 202-4, when the air heater works in summer, the indoor unit heat exchanger 202-4 plays a role of an evaporator to cool the air, and when the air heater works in winter, the indoor unit heat exchanger 202-4 plays a role of a condenser to heat the air; an outdoor unit 201 of the low-environment-temperature air source heat pump air heater 2 is installed on the outdoor side of the agricultural room 1, an indoor unit 202 is installed on the lower portion of the indoor side of the agricultural room 1, and the distance between the indoor unit 202 and the ground of the agricultural room 1 is not more than 20 cm.
The buried air duct 6 comprises an outlet section 601, an inlet section 602 and a heat exchange section 603, wherein the outlet section 601 and the inlet section 602 are located above the ground, and the heat exchange section 603 is located in shallow soil below the ground.
A plurality of indoor air return ports 12 are uniformly arranged on the ceiling of the farm room 1, and the indoor air return ports 12 are connected with the indoor side air valve 8; the outdoor air inlet 9, the ratproof net 10 and the coarse filter 11 are arranged in sequence and are positioned outside the room, and the coarse filter 11 is connected with the outdoor air valve 7; the outdoor air valve 7 and the indoor air valve 8 are simultaneously connected with an inlet section 602 of the buried air pipe 6, the inlet section 602 is connected with a heat exchange section 603, and the heat exchange section 603 is connected with an outlet section 601; the tunnel air supply port 3, the tunnel air blower 4 and the medium-efficiency filter 5 are sequentially arranged and are positioned at the indoor side, the medium-efficiency filter 5 is connected with the outlet section 601 of the buried air pipe 6, and all the parts are connected by air pipes.
As can be seen from fig. 2, a first buried air duct structure of a heating and air conditioning system for a farm room is: the heat exchange section 603 of the underground air pipe 6 is formed by connecting a plurality of U-shaped air pipes, and the heat exchange section 603 is integrally and horizontally arranged in shallow soil and is completely contacted with the soil. The structure is suitable for newly-built agricultural houses, the heat exchange section 603 horizontal installation of the underground air pipe 6 can be carried out when the agricultural house foundation is treated, the construction difficulty is low, and the investment cost is low.
As can be seen from fig. 3, a second buried air duct structure of a heating and air conditioning system for a farm room is: the heat exchange section 603 of the underground air pipe 6 is composed of an inner air pipe 603-1 and an outer air pipe 603-2, the inner air pipe 603-1 is arranged in the outer air pipe 603-2, the bottom end of the outer air pipe 603-2 is sealed, the top end of the outer air pipe 603-2 is tightly contacted with the inner air pipe 603-1, and the whole heat exchange section 603 is vertically arranged in shallow soil and is completely contacted with the soil. This structure is applicable to existing rural power house, can carry out the vertical installation of heat transfer section 603 of buried air pipe 6, and the area of occupation land is little, and the feasibility of system transformation is higher, easily operates in existing building, and the geothermal energy resource of usable deep position department, geothermal resource utilization is higher.
A heat supply and air conditioning system for a farm house, which can realize the first function: cooling and heating by tunnel air; the second function that can be achieved is: the low ambient temperature air source heat pump air heater supplies cold and heat, and the tunnel wind precools and preheats the new trend, and concrete process is as follows:
(1) cooling and heating by tunnel wind
As can be known from FIG. 4, when the indoor temperature of the outdoor and agricultural houses 1 is high, the indoor cooling load is small, and the shallow soil temperature is low, the cooling needs to be supplied through the buried air pipe 6, and the function process is realized: the opening degree of the outdoor side air valve 7 and the opening degree of the indoor side air valve 8 are adjusted, different proportions of indoor return air and outdoor fresh air are achieved, then the tunnel air blower 4 is started, the outdoor fresh air enters the underground air pipe 6 through the outdoor air inlet 9, the rat-proof net 10, the coarse filter 11 and the outdoor side air valve 7 in sequence, the indoor return air enters the underground air pipe 6 through the indoor return air inlet 12 and the indoor side air valve 8 in sequence, the outdoor fresh air and the indoor return air are mixed and then enter the inlet section 602, the heat exchange section 603 and the outlet section 601 of the underground air pipe 6 in sequence, when the mixed air passes through the heat exchange section 603, the mixed air is cooled by shallow soil, and then the mixed air enters the farm room 1 through the medium-high efficiency filter 5, the tunnel air blower 4 and the tunnel air supply port 3 in sequence, the tunnel air cooling is achieved, and the fresh air demand.
When outdoor and 1 indoor temperature in peasant house are lower, and indoor heating load is less, and when shallow soil temperature is higher, need through the heat supply of tunnel wind, realize that the operation of this process is unanimous basically with the cooling of tunnel wind supply, the difference is, when outdoor new trend and indoor return air mix back through heat transfer section 603, realize the heat transfer with shallow soil, the mixed air is heated, then it is indoor to get into 1 of peasant house again, realize the heat supply of tunnel wind to satisfy indoor personnel's new trend demand.
(2) The low environment temperature air source heat pump air heater supplies cold and heat, the tunnel air pre-cools and pre-heats the fresh air
It can be known from fig. 5 that when outdoor and 1 indoor temperature in the agricultural room are higher, and indoor cooling load is great, when the ground way wind cooling ability is not enough, need through the cooling of low ambient temperature air source heat pump air heater 2, in order to satisfy the new trend demand simultaneously, adopt buried wind pipe 6 to the new trend precooling, realize that this functional process is: closing the indoor side air valve 8, adjusting the opening degree of the outdoor side air valve 7 to realize different fresh air volume control, and then opening the tunnel air blower 4 and the low-environment-temperature air source heat pump air heater 2; indoor return air enters the indoor unit 202 from the heat pump return air inlet 202-1 and is sent into the room through the indoor unit heat exchanger 202-4, the heat pump blower 202-3 and the heat pump return air inlet 202-1 in sequence, at the moment, the indoor unit heat exchanger 202-4 takes on the function of an evaporator, the indoor return air is cooled by the evaporator, and then the cooling is supplied to the agricultural room 1, and the cooling function of the low-environment-temperature air source heat pump air heater 2 is realized; outdoor fresh air enters the underground air pipe 6 through the outdoor air inlet 9, the rat-proof net 10, the coarse filter 11 and the outdoor side air valve 7 in sequence, the outdoor fresh air enters the inlet section 602, the heat exchange section 603 and the outlet section 601 of the underground air pipe 6 in sequence, when the outdoor fresh air passes through the heat exchange section 603, heat exchange is achieved with shallow soil, the outdoor fresh air is cooled and cooled, and then the fresh air enters the inside of the agricultural room 1 through the middle-high efficiency filter 5, the tunnel air blower 4 and the tunnel air supply opening 3 in sequence, so that the function of precooling the fresh air by the tunnel air is achieved, and the fresh air cooling load is reduced.
When the indoor temperature of the outdoor and the agricultural houses 1 is low, the indoor heat load is large, and the heat supply capacity of the tunnel wind is insufficient, heat is supplied through the low-environment-temperature air source heat pump air heater 2, meanwhile, in order to meet the fresh air demand, the buried air pipe 6 is adopted to preheat fresh air, the operation of the functional process is basically consistent with that of the above process, and the difference is that at the moment, the indoor machine heat exchanger 202-4 takes the function of a condenser, indoor return air is heated by the condenser to be heated, and then heat is supplied to the agricultural houses 1, and heat supply of the low-environment-temperature air source heat pump; when outdoor fresh air passes through the heat exchange section 603, the heat exchange with shallow soil is realized, the outdoor fresh air is heated and heated, and then the fresh air is sent into the farm house 1, so that the function of preheating the fresh air by tunnel wind is realized, and the heat load of the fresh air is reduced.
The rat-proof net 10 can prevent outdoor insects, rats and the like from entering the underground air pipe 6, the coarse filter 11 can filter large particle pollutants in outdoor air, and the medium-high efficiency filter 5 can filter small particle pollutants in outdoor air or outdoor air and indoor return air, so that the indoor air quality is improved.
Claims (4)
1. The utility model provides a heat supply and air conditioning system that can be used to rural power house which characterized in that: the device comprises a farm room (1), a low-environment-temperature air source heat pump air heater (2), a tunnel air supply port (3), a tunnel air supply fan (4), a medium-high efficiency filter (5), a buried air pipe (6), an outdoor side air valve (7), an indoor side air valve (8), an outdoor air inlet (9), a rat-proof net (10), a coarse-effect filter (11) and an indoor air return port (12);
the low-environment-temperature air source heat pump air heater (2) comprises an outdoor unit (201) and an indoor unit (202), wherein the indoor unit (202) further comprises a heat pump air return opening (202-1), a heat pump air supply opening (202-2), a heat pump air supply machine (202-3) and an indoor unit heat exchanger (202-4), the indoor unit heat exchanger (202-4) plays a role of an evaporator to cool air under the heating working condition in summer, and the indoor unit heat exchanger (202-4) plays a role of a condenser to heat air under the heating working condition in winter;
the underground air pipe (6) comprises an outlet section (601), an inlet section (602) and a heat exchange section (603), wherein the outlet section (601) and the inlet section (602) are positioned above the ground, and the heat exchange section (603) is positioned in shallow soil below the ground;
a plurality of indoor air return ports (12) are uniformly arranged on the ceiling of the farm room (1), and the indoor air return ports (12) are connected with an indoor side air valve (8); the outdoor air inlet (9), the rat-proof net (10) and the coarse filter (11) are sequentially arranged and are all positioned outside the room, and the coarse filter (11) is connected with the outdoor air valve (7); the outdoor air valve (7) and the indoor air valve (8) are simultaneously connected with an inlet section (602) of the buried air pipe (6), the inlet section (602) is connected with a heat exchange section (603), and the heat exchange section (603) is connected with an outlet section (601); the tunnel air supply port (3), the tunnel air blower (4) and the medium-high efficiency filter (5) are sequentially arranged and are positioned at the indoor side, the medium-high efficiency filter (5) is connected with an outlet section (601) of the buried air pipe (6), and all the parts are connected and are connected by the air pipe.
2. A heating and air conditioning system for agricultural rooms, according to claim 1, characterized in that: the outdoor unit (201) of the low-environment-temperature air source heat pump air heater (2) is installed on the outdoor side of the agricultural room (1), the indoor unit (202) is installed on the lower portion of the indoor side of the agricultural room (1), and the distance between the indoor unit (202) and the ground of the agricultural room (1) is not more than 20 cm.
3. A heating and air conditioning system for agricultural rooms, according to claim 1, characterized in that: the heat exchange section (603) of the underground air pipe (6) is formed by connecting a plurality of U-shaped air pipes, and the heat exchange section (603) is integrally and horizontally arranged in shallow soil and is completely contacted with the soil.
4. A heating and air conditioning system for agricultural rooms, according to claim 1, characterized in that: the heat exchange section (603) of the underground air pipe (6) is composed of an inner air pipe (603-1) and an outer air pipe (603-2), the inner air pipe (603-1) is arranged in the outer air pipe (603-2), the bottom end of the outer air pipe (603-2) is sealed, the top end of the outer air pipe (603-2) is tightly contacted with the inner air pipe (603-1), and the heat exchange section (603) is integrally and vertically arranged in shallow soil and is completely contacted with the soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921845751.8U CN210602094U (en) | 2019-10-30 | 2019-10-30 | Heat supply and air conditioning system for agricultural room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921845751.8U CN210602094U (en) | 2019-10-30 | 2019-10-30 | Heat supply and air conditioning system for agricultural room |
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| Publication Number | Publication Date |
|---|---|
| CN210602094U true CN210602094U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921845751.8U Expired - Fee Related CN210602094U (en) | 2019-10-30 | 2019-10-30 | Heat supply and air conditioning system for agricultural room |
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| CN (1) | CN210602094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777197A (en) * | 2022-04-29 | 2022-07-22 | 西安交通大学 | Underground gallery geothermal energy recycling air conditioning system and method |
-
2019
- 2019-10-30 CN CN201921845751.8U patent/CN210602094U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777197A (en) * | 2022-04-29 | 2022-07-22 | 西安交通大学 | Underground gallery geothermal energy recycling air conditioning system and method |
| CN114777197B (en) * | 2022-04-29 | 2024-03-26 | 西安交通大学 | Underground corridor geothermal energy recycling air conditioning system and method |
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