CN112050489A - Air source heat exchange system - Google Patents
Air source heat exchange system Download PDFInfo
- Publication number
- CN112050489A CN112050489A CN202010973624.7A CN202010973624A CN112050489A CN 112050489 A CN112050489 A CN 112050489A CN 202010973624 A CN202010973624 A CN 202010973624A CN 112050489 A CN112050489 A CN 112050489A
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- Prior art keywords
- air
- heat exchange
- heat exchanger
- exchange system
- well
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000000605 extraction Methods 0.000 claims abstract description 14
- 239000002689 soil Substances 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000005192 partition Methods 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 11
- 238000009825 accumulation Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002352 surface water Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T50/00—Geothermal systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
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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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Central Air Conditioning (AREA)
Abstract
The invention relates to an air source heat exchange system. The air source heat exchange system comprises: the underground heat exchanger comprises an underground pipe, a heat exchanger and an air extraction device, wherein the heat exchanger and the air extraction device are arranged in a heat exchange well which is positioned underground; the water inlet of the heat exchanger is communicated with the water outlet of the buried pipe, and the water outlet of the heat exchanger is communicated with the water inlet of the buried pipe; the exhaust port of the air exhaust device is communicated with a building to be heated through an exhaust pipeline; the buried pipe is used for absorbing energy in surrounding soil to change the temperature of internal fluid; the heat exchanger is used for changing the temperature of air entering through a wellhead of the heat exchange well to form suitable temperature air; the air extraction device is used for extracting the air with the proper temperature into the building to be heated so as to change the temperature inside the building to be heated.
Description
Technical Field
The invention relates to the field of heating and ventilation industry, in particular to an air source heat exchange system.
Background
The superficial layer surface heat energy is a general term of energy in surface water, underground water and soil, and is called as an energy-saving and environment-friendly technology with the greatest development prospect in the 21 st century. At present, the development and utilization mode of shallow geothermal energy is mainly heat pump technology.
However, in the heat pump technology, heat is continuously absorbed from the indoor to the underground in summer, and heat is continuously stored in soil, and heat of soil is continuously extracted in winter to realize indoor heating, and heat is absorbed from soil. When the heat quantity accumulatively released to the underground in summer by the heat pump technology is larger than the heat quantity accumulatively absorbed from the underground in winter, heat accumulation is formed in the underground, the temperature of an underground constant-temperature zone is gradually increased, and the cooling efficiency of the heat pump technology is annualized; when the heat pump technology releases condensation heat to the underground in an accumulated manner in summer and is smaller than heat absorbed from the underground in winter, the temperature of an underground constant-temperature zone is lowered year by year to form so-called cold accumulation, the heat supply efficiency of the heat pump technology is lowered year by year, on the other hand, the heat pump technology essentially has high-grade energy input and consumption (about 1/3-1/2 of the air conditioning technology), and the development and utilization of superficial layer surface heat energy are greatly limited by integrating the overall benefits of initial investment and service life maintenance, although the ground source heat pump technology has the advantages of energy conservation and environmental protection, the advantages are not obvious, and in addition, the invisible cost caused by ecological environment pollution is added.
Therefore, how to design an equipment system for shallow ground surface heat energy utilization, which reduces the high-grade energy consumption and simultaneously reduces the influence and pollution on the ecological environment of the shallow ground surface to the maximum extent is a technical problem to be solved urgently in the current shallow ground surface heat energy utilization field.
Disclosure of Invention
The invention aims to provide an air source heat exchange system, which aims to reduce the influence and pollution on the ecological environment of shallow earth surface to the maximum extent while reducing the high-grade energy consumption.
In order to achieve the purpose, the invention provides the following scheme:
an air source heat exchange system comprising: the underground heat exchanger comprises an underground pipe, a heat exchanger and an air extraction device, wherein the heat exchanger and the air extraction device are arranged in a heat exchange well which is positioned underground;
the water inlet of the heat exchanger is communicated with the water outlet of the buried pipe, and the water outlet of the heat exchanger is communicated with the water inlet of the buried pipe; the exhaust port of the air exhaust device is communicated with a building to be heated through an exhaust pipeline; the buried pipe is used for absorbing energy in surrounding soil to change the temperature of internal fluid; the heat exchanger is used for changing the temperature of air entering through a wellhead of the heat exchange well to form suitable temperature air; the air extraction device is used for extracting the air with the proper temperature into the building to be heated so as to change the temperature inside the building to be heated.
Optionally, the air source heat exchange system further includes: and the air filter element is arranged at the wellhead of the heat exchange well.
Optionally, the air source heat exchange system further includes: and the air inlet of the air collecting device is arranged at the air outlet end of the heat exchanger, the air outlet of the air collecting device is connected with the air inlet of the air extracting device, and the air collecting device is used for collecting the air with the proper temperature.
Optionally, the air source heat exchange system further includes: a layered partition plate provided with a ventilation through hole; the heat exchanger is arranged on the layered partition plate; the air exhaust device is arranged corresponding to the ventilation through hole; the layered partition plate is used for supporting and fixing the heat exchanger; the air extractor is used for extracting the air with proper temperature passing through the ventilation through hole into the building to be heated.
Optionally, the air source heat exchange system further comprises an equipment well, and the air outlet pipeline is arranged in the equipment well.
Optionally, the air source heat exchange system further includes: the sealing door is used for isolating the equipment well from the heat exchange well so as to prevent air in the equipment well from entering the heat exchange well.
Optionally, the heat exchanger is multiple.
Optionally, the air source heat exchange system further includes: a packing material for spacing the plurality of heat exchangers.
Optionally, the number of the well heads of the heat exchange well is multiple; and each wellhead is correspondingly provided with one heat exchanger.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the invention provides cold water for the heat exchanger by arranging the buried pipe, does not need a heat pump technology, avoids cold and heat accumulation, and reduces the influence and pollution to the ecological environment of the shallow ground surface to the maximum extent while reducing the high-grade energy consumption.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a longitudinal cross-sectional view of an air source heat exchange system of the present invention at a first angle;
fig. 2 is a longitudinal cross-sectional view of the air source heat exchange system of the present invention at a second angle.
Description of the symbols: 1-buried pipe, 2-heat exchanger, 3-air filter element, 4-gas collecting device, 5-air extractor, 6-filtered air channel, 7-filling material, 8-layered partition board, 9-earth surface, 10-building to be heat-exchanged, 11-equipment well, 12-ladder stand, 13-well mouth of equipment well and 14-gas outlet pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 and 2, an air source heat exchange system includes: the system comprises a buried pipe 1, a heat exchanger 2 and an air extraction device 5, wherein the heat exchanger 2 and the air extraction device 5 are arranged in a heat exchange well located underground. The water inlet of the heat exchanger 2 is communicated with the water outlet of the buried pipe 1, and the water outlet of the heat exchanger 2 is communicated with the water inlet of the buried pipe 1; the air exhaust port of the air exhaust device 5 is arranged at the air outlet end of the heat exchanger 2, and the air exhaust port of the air exhaust device 5 is communicated with the building 10 to be heated through an air outlet pipeline 14; the buried pipe 1 is used to absorb energy in the surrounding soil to change (lower or raise) the temperature of the internal fluid; the heat exchanger 2 is used for changing (reducing or increasing) the temperature of air entering through a wellhead of the heat exchange well to form temperature-suitable air; the air extractor 5 is used for extracting the air with proper temperature into the building 10 to be heat exchanged so as to change (reduce or increase) the temperature inside the building 10 to be heat exchanged.
When the building to be heated needs to be cooled, the buried pipe 1 is used for absorbing energy in surrounding soil to reduce the temperature of internal fluid (the temperature of the soil is lower at the moment); the heat exchanger 2 is used for reducing the temperature of air entering through a wellhead of the heat exchange well to form low-temperature air; the air extractor 5 is used for extracting the low-temperature air into the building 10 to be heat-exchanged so as to reduce the temperature inside the building 10 to be heat-exchanged.
When the building to be heated needs to be heated, the buried pipe 1 is used for absorbing energy in surrounding soil to raise the temperature of internal fluid (the soil temperature is high at the moment); the heat exchanger 2 is used for raising the temperature of air entering through the wellhead of the heat exchange well to form hot air; the air extractor 5 is used for extracting the hot air into the interior of the building 10 to be heat exchanged so as to raise the temperature of the interior of the building 10 to be heat exchanged.
The fluid flow within the buried pipe 1 is driven by density differences due to temperature differences of the fluid, similar to the flow heating of water within solar energy: the hot water has low density and the cold water has high density.
As an optional embodiment, the air source heat exchange system further includes: and the air filter element 3 is arranged at the wellhead of the heat exchange well, is positioned on the earth surface 9 and is convenient to replace, and no dust source exists in the nearby space and is used for shading treatment.
As an optional embodiment, the air source heat exchange system further includes: the air inlet of the air collecting device 4 is arranged at the air outlet end of the heat exchanger 2, the air outlet of the air collecting device 4 is connected with the air inlet of the air extracting device 5, and the air collecting device 4 is used for collecting the air with the proper temperature.
As an optional embodiment, the air source heat exchange system further includes: a layered partition plate 8 provided with a ventilation through hole; the heat exchanger 2 is arranged on the layered partition 8; the air extracting device 5 is arranged corresponding to the ventilation through hole; the layered partition 8 is used for supporting and fixing the heat exchanger 2; the air extractor 5 is used for extracting the air with proper temperature passing through the ventilation through hole into the building 10 to be heat-exchanged.
As an optional implementation mode, the air source heat exchange system further comprises an equipment well 11, the air outlet pipeline 14 is arranged in the equipment well 11, and a ladder stand 12 is further arranged in the equipment well 11 and used for workers to enter and exit the equipment well 11 through a well mouth 13 of the equipment well.
As an optional embodiment, the air source heat exchange system further includes: and the sealing door is used for isolating the equipment well 11 from the heat exchange well so as to prevent air in the equipment well 11 from entering the heat exchange well.
As an alternative embodiment, the heat exchanger 2 is provided in plurality, the number of the ground buried pipes 1 is equal to that of the heat exchanger 2, and the ground buried pipes 1 and the heat exchanger 2 are arranged in a group.
As an optional embodiment, the air source heat exchange system further includes: a packing material 7, wherein the packing material 7 is used for separating a plurality of heat exchangers 2 and ensuring that filtered air can only enter the air extraction device 5 through the heat exchangers 2.
As an alternative embodiment, the air extraction device 5 is a fan.
As an alternative embodiment, the heat exchange well has a plurality of wellheads; the heat exchanger 2 is correspondingly arranged at the wellhead of each heat exchange well, a filtered air channel 6 is further arranged at the wellhead of each heat exchange well, and hot air reaches the surface of the heat exchanger 2 through the filtered air channel 6.
As an alternative, the heat exchanger 2 is buried 2 meters below the ground surface 9, and the heat exchanger 2 can be placed in a soil layer with relatively stable temperature, so as to ensure the temperature stability of the environment where the heat exchanger 2 is located to the maximum extent.
As an alternative embodiment, the heat exchanger 2 may be of plate, disc or mesh type.
Compared with the prior art, the invention has the following beneficial effects:
1. the fixed medium in the buried pipe conducts heat, and has no pollution to underground water and surface water resources.
2. The buried pipe is used for heat extraction, is not limited by underground water and surface water resources, has good adaptability and is convenient to popularize and apply.
3. And high-grade energy consumption equipment such as a compressor, an evaporator and the like is not needed, and energy is saved.
4. The temperature difference of media in the underground pipe before and after heat exchange is small, and the phenomena of shallow surface heat accumulation and cold accumulation are not obvious.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. An air source heat exchange system, comprising: the underground heat exchanger comprises an underground pipe, a heat exchanger and an air extraction device, wherein the heat exchanger and the air extraction device are arranged in a heat exchange well which is positioned underground;
the water inlet of the heat exchanger is communicated with the water outlet of the buried pipe, and the water outlet of the heat exchanger is communicated with the water inlet of the buried pipe; the exhaust port of the air exhaust device is communicated with a building to be heated through an exhaust pipeline; the buried pipe is used for absorbing energy in surrounding soil to change the temperature of internal fluid; the heat exchanger is used for changing the temperature of air entering through a wellhead of the heat exchange well to form suitable temperature air; the air extraction device is used for extracting the air with the proper temperature into the building to be heated so as to change the temperature inside the building to be heated.
2. The air source heat exchange system of claim 1, further comprising: and the air filter element is arranged at the wellhead of the heat exchange well.
3. The air source heat exchange system of claim 1, further comprising: and the air inlet of the air collecting device is arranged at the air outlet end of the heat exchanger, the air outlet of the air collecting device is connected with the air inlet of the air extracting device, and the air collecting device is used for collecting the air with the proper temperature.
4. The air source heat exchange system of claim 1, further comprising: a layered partition plate provided with a ventilation through hole; the heat exchanger is arranged on the layered partition plate; the air exhaust device is arranged corresponding to the ventilation through hole; the layered partition plate is used for supporting and fixing the heat exchanger; the air extractor is used for extracting the air with proper temperature passing through the ventilation through hole into the building to be heated.
5. The air source heat exchange system of claim 1, further comprising an equipment well, wherein the outlet pipe is disposed within the equipment well.
6. The air source heat exchange system of claim 5, further comprising: the sealing door is used for isolating the equipment well from the heat exchange well so as to prevent air in the equipment well from entering the heat exchange well.
7. The air source heat exchange system of claim 1, wherein the heat exchanger is plural.
8. The air source heat exchange system of claim 7, further comprising: a packing material for spacing the plurality of heat exchangers.
9. The air source heat exchange system of claim 7, wherein the heat exchange well comprises a plurality of wellheads; and each wellhead is correspondingly provided with one heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010973624.7A CN112050489B (en) | 2020-09-16 | 2020-09-16 | Air source heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010973624.7A CN112050489B (en) | 2020-09-16 | 2020-09-16 | Air source heat exchange system |
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| Publication Number | Publication Date |
|---|---|
| CN112050489A true CN112050489A (en) | 2020-12-08 |
| CN112050489B CN112050489B (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010973624.7A Active CN112050489B (en) | 2020-09-16 | 2020-09-16 | Air source heat exchange system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702082A (en) * | 2021-08-30 | 2021-11-26 | 苏州西热节能环保技术有限公司 | Experimental device and method for researching convection heat transfer characteristics of buried pipe in dense-phase region of fluidized bed |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2446434Y (en) * | 2000-08-10 | 2001-09-05 | 王敬雷 | Air conditioner able to utilize ground temp for refrigeration |
| CN1321859A (en) * | 2000-04-28 | 2001-11-14 | 吕脉玉 | Method for regulating room temperature by using underground water and its special-purpose equipment |
| CN103759361A (en) * | 2014-01-21 | 2014-04-30 | 吴刚 | Ground source central air conditioning system |
| CN204202085U (en) * | 2014-10-28 | 2015-03-11 | 浙江中节能绿建环保科技有限公司 | Room natural ventilation system during underground pipe is auxiliary |
| CN104567503A (en) * | 2013-10-14 | 2015-04-29 | 李延魁 | Air source and ground source combination heat storage device |
| US20180195746A1 (en) * | 2015-09-18 | 2018-07-12 | Nanjing Canatal Data-Centre Environmental Tech. Co., Ltd. | Gravity-assisted heat pipe cooling source cold storage system and chiller set |
| CN208025735U (en) * | 2018-02-06 | 2018-10-30 | 娄永琪 | A kind of buried pipe ventilation device |
-
2020
- 2020-09-16 CN CN202010973624.7A patent/CN112050489B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321859A (en) * | 2000-04-28 | 2001-11-14 | 吕脉玉 | Method for regulating room temperature by using underground water and its special-purpose equipment |
| CN2446434Y (en) * | 2000-08-10 | 2001-09-05 | 王敬雷 | Air conditioner able to utilize ground temp for refrigeration |
| CN104567503A (en) * | 2013-10-14 | 2015-04-29 | 李延魁 | Air source and ground source combination heat storage device |
| CN103759361A (en) * | 2014-01-21 | 2014-04-30 | 吴刚 | Ground source central air conditioning system |
| CN204202085U (en) * | 2014-10-28 | 2015-03-11 | 浙江中节能绿建环保科技有限公司 | Room natural ventilation system during underground pipe is auxiliary |
| US20180195746A1 (en) * | 2015-09-18 | 2018-07-12 | Nanjing Canatal Data-Centre Environmental Tech. Co., Ltd. | Gravity-assisted heat pipe cooling source cold storage system and chiller set |
| CN208025735U (en) * | 2018-02-06 | 2018-10-30 | 娄永琪 | A kind of buried pipe ventilation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702082A (en) * | 2021-08-30 | 2021-11-26 | 苏州西热节能环保技术有限公司 | Experimental device and method for researching convection heat transfer characteristics of buried pipe in dense-phase region of fluidized bed |
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| Publication number | Publication date |
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| CN112050489B (en) | 2021-11-16 |
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