CN117404828A - Double-medium circulation ground buried pipe heating and refrigerating system - Google Patents
Double-medium circulation ground buried pipe heating and refrigerating system Download PDFInfo
- Publication number
- CN117404828A CN117404828A CN202311244476.5A CN202311244476A CN117404828A CN 117404828 A CN117404828 A CN 117404828A CN 202311244476 A CN202311244476 A CN 202311244476A CN 117404828 A CN117404828 A CN 117404828A
- Authority
- CN
- China
- Prior art keywords
- buried pipe
- pipeline
- medium circulation
- double
- pipe
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 230000009977 dual effect Effects 0.000 claims description 12
- 239000002689 soil Substances 0.000 abstract description 32
- 238000009825 accumulation Methods 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- 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
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-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
- F24T10/10—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
- F24T10/15—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 using bent tubes; using tubes assembled with connectors or with return headers
Abstract
The invention discloses a double-medium circulation buried pipe heating and refrigerating system, which relates to the field of energy application, wherein a control main station in the system is connected with a water collector; the water collector is arranged below the building; the buried pipe and the double-medium circulation buried pipe are respectively arranged below the empty ground at two sides of the building; the buried pipe is communicated with the water collector through a pipeline; the inside of the double-medium circulation buried pipe is of a concentric pipe structure; the concentric pipe structure is that an inner pipe is sleeved in an outer pipe; the diameter of the outer pipeline is larger than that of the inner pipeline; the inner side pipeline of the double-medium circulation buried pipe is communicated with the CO2 circulator; the outer side pipeline of the double-medium circulating buried pipe is communicated with the water collector; the flow direction of the medium in the inner pipeline is opposite to the flow direction of the medium in the outer pipeline; the CO2 circulator enables an inner pipeline to pass through the pipeline; the outlet end of the CO2 circulator is communicated with a storage point through a CO2 pipeline. The invention can greatly reduce the cold accumulation or the hot accumulation of the soil while taking heat and cooling the soil.
Description
Technical Field
The invention relates to the field of energy application, in particular to a double-medium circulation buried pipe heating and refrigerating system.
Background
In recent years, the demand of summer cooling or winter heating in different areas of China is large, and a large amount of energy is needed for heating or cooling. The ground source heat pump is a system which takes ground source energy as a heat pump, is used as a cooling source for refrigerating in summer and a low-temperature heat source for heating and supplying heat in winter, and simultaneously realizes heating, refrigerating and domestic hot water, has great energy-saving potential and is widely applied to building air conditioning systems. Compared with the traditional air conditioner for refrigerating and heating, the ground source heat pump has the following characteristics:
(1) Because the temperature change of the soil is small and stable throughout the year, the soil ground source heat pump using the buried pipe has higher working efficiency compared with the traditional air conditioning system.
(2) Due to the delay and decay of the temperature wave, the ground source heat pump has a low condensing temperature and a high evaporating temperature when extreme outdoor air temperatures occur. Under the same input power, the heating and refrigerating capacities are higher.
(3) The ground source heat pump is used for supplying cold and heat by the blocks, so that the supply efficiency is higher, the effect is better, the energy consumption is less, and compared with the traditional method, the energy can be saved by 3% -30%.
(4) For electric energy heating, the emission of pollutants can be reduced by more than 70% by using the ground source heat pump.
However, due to the unbalanced cooling and heating demands of cities in the various places, the heating demands of cities in the north are larger than those of the cities in the south, and the cooling demands of cities in the south are larger. Thus, the problem of soil heat balance is solved, and the phenomenon of cold accumulation or hot accumulation is easy to occur. For example, the heating in winter in cold and severe cities such as Harbin is far greater than the cooling in summer, so that the heat extraction of soil is greater than the heat extraction throughout the year, and the temperature of the soil is reduced; conversely, excessive refrigeration demands in the martial arts, shanghai, etc., often cause the soil temperature to rise. At present, a cooling tower is generally adopted as auxiliary heat dissipation equipment in engineering to solve the problems, but the combination and operation of the cooling tower and a ground source heat pump are not yet studied decisively, so that the problems of complex operation and high cost are caused.
Therefore, it is desirable to provide a dual medium circulation buried pipe that can significantly reduce the cold or hot accumulation of soil while simultaneously taking heat and cold from the soil.
Disclosure of Invention
The invention aims to provide a double-medium circulation buried pipe heating and refrigerating system which can be used for heating and cooling soil and greatly reducing the cold accumulation or the hot accumulation of the soil.
In order to achieve the above object, the present invention provides the following solutions:
a dual medium circulation buried pipe heating and cooling system comprising: the system comprises a buried pipe, a double-medium circulation buried pipe, a water collector, a control main station, a CO2 circulator and a storage point;
the control main station is connected with the water collector;
the water collector is arranged below a building;
the buried pipe and the double-medium circulation buried pipe are respectively arranged below empty lands at two sides of the building;
the buried pipe is communicated with the water collector through a pipeline;
the inside of the double-medium circulation buried pipe is of a concentric pipe structure; the concentric pipe structure is that an inner pipe is sleeved in an outer pipe; the diameter of the outer pipeline is larger than that of the inner pipeline;
the inner side pipeline of the double-medium circulation buried pipe is communicated with the CO2 circulator; the outer side pipeline of the double-medium circulating buried pipe is communicated with the water collector; the flow direction of the medium in the inner pipeline is opposite to the flow direction of the medium in the outer pipeline;
the CO2 circulator enables an inner pipeline to be connected with a pipeline; the outlet end of the CO2 circulator is communicated with a storage point through a CO2 pipeline.
Optionally, the buried pipe is a U-shaped buried pipe.
Alternatively, the buried pipes and the double-medium circulation buried pipes are arranged in parallel in a single row at fixed intervals.
Optionally, the buried pipe and the double-medium circulation buried pipe have a buried depth ranging from 5 meters to 10 meters.
Optionally, the storage point is an open place.
Optionally, the control head station is arranged in the center of the area to be controlled.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the double-medium circulation buried pipe heating and refrigerating system provided by the invention, the tail water can be treated through the double-medium circulation buried pipe, and the CO2 in the inner pipeline can be utilized to perform heat convection on the tail water in the outer pipeline, so that the temperature of the tail water is reduced or increased. Thereby reducing the temperature difference between the tail water and the soil and ensuring that the temperature of the soil has little change. The two pipelines of the buried pipe and the double-medium circulation buried pipe are utilized to work in quarters, so that the use burden of a single soil area is reduced, the same soil is used in the original two quarters, and one soil is used in the current quarter, so that the natural time of the soil is increased, the natural regulation capacity of the soil is enhanced, and the temperature accumulation of the soil is further reduced. Due to the heat island effect of the city and suburb, the city temperature is higher than suburb. Therefore, heat is transferred and stored in other places by utilizing CO2 circulation heat exchange, so that the temperature of the city can be reduced, and the livability of the city is improved. The CO2 is utilized to circulate in the buried pipe inner pipe due to other mediums, on one hand, the gas circulation is utilized, the required pumping power is lower, the consumed energy is less, and in addition, when the pipeline is smaller, the flow rate of the gas in unit time is higher than that of the liquid, and meanwhile, the pressure on the pipe wall is smaller and more stable. On the other hand, the physical and chemical properties of the CO2 are stable, the CO2 is not inflammable and explosive, and is difficult to react with other substances, and the specific heat capacity is high, so that the heat carried by the CO2 with the same volume is higher than that of other gases. Finally, CO2 is common gas in the atmosphere, and has simple manufacture and low cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed 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 other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a dual medium circulation buried pipe heating and cooling system according to the present invention;
FIG. 2 is a schematic view of a buried pipe structure;
FIG. 3 is a schematic illustration of a dual medium circulation buried pipe;
FIG. 4 is a schematic diagram of summer cooling;
fig. 5 is a schematic diagram of winter heating.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a double-medium circulation buried pipe heating and refrigerating system which can be used for heating and cooling soil and greatly reducing the cold accumulation or the hot accumulation of the soil.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, the present invention provides a dual-medium circulation ground heating and refrigerating system, comprising: the system comprises a buried pipe, a double-medium circulation buried pipe, a water collector, a control main station, a CO2 circulator and a storage point.
The control main station is connected with the water collector; the control head station is arranged in the center of the area to be controlled.
The water collector is arranged below the building.
The buried pipe and the double-medium circulation buried pipe are respectively arranged below the empty ground at two sides of the building.
The buried pipe is communicated with the water collector through a pipeline
The inside of the double-medium circulation buried pipe is of a concentric pipe structure; the concentric pipe structure is that an inner pipe is sleeved in an outer pipe; the diameter of the outer pipeline is larger than that of the inner pipeline;
the inner side pipeline of the double-medium circulation buried pipe is communicated with the CO2 circulator; the outer side pipeline of the double-medium circulating buried pipe is communicated with the water collector; the flow direction of the medium in the inner pipeline is opposite to the flow direction of the medium in the outer pipeline;
the CO2 circulator enables an inner pipeline to be connected with a pipeline; the outlet end of the CO2 circulator is communicated with a storage point through a CO2 pipeline.
Specifically, the buried pipe is a U-shaped buried pipe. As shown in figure 2, the U-shaped buried pipe is in a cylindrical shape as a whole, a U-shaped space is arranged in the center of the inside, and the rest parts are filled with filling materials.
As shown in fig. 3, the double-medium buried pipe is similar to the U-shaped buried pipe, except that the inside of the double-medium buried pipe is divided into an inner pipe and an outer pipe in a sleeve manner, the center of the double-medium buried pipe is provided with a double-U-shaped channel, and the rest part of the double-medium buried pipe is filled with medium.
And the buried pipes and the double-medium circulation buried pipes are arranged in parallel in a single row in a fixed interval mode.
The buried depth of the buried pipe and the double-medium circulation buried pipe ranges from 5 meters to 10 meters. The double-medium circulation buried pipe is characterized in that an outer pipeline is connected to a water collector by utilizing a pipeline to carry out circulation heat collection, an inner pipe is connected to a CO2 circulator by utilizing a pipeline to carry out another circulation, two mediums in the double-medium circulation pipe are in a mutual convection state, and circulating water of an outer pipeline not only exchanges heat with soil, but also circulates with CO2 in an inner pipeline.
The storage point is an open place. According to the situation of the periphery of the city, the thought of local conditions is fully reflected, for example, the northern city can take abandoned coal mine and oil well as storage points; coastal cities can select storage points as oceans, underground water and the like, and in some cities with underground karst cave, the karst cave can be used as the storage point, and even CO2 can be used as industrial raw materials. The CO2 after heat exchange is stored in a storage point through a CO2 circulator, the heat of the CO2 is sealed, and the CO2 can be taken out and supplied when the season is changed.
As shown in fig. 4, the summer cooling is mainly achieved by the following method:
the water collector is controlled by the control center to enable the water pump of each building area to work, so that water circulates in the buried pipe. The water is cooled from the soil through the U-shaped buried pipe and then is introduced into the building to cool the user. And starting the CO2 circulator to enable CO2 to circulate in the inner pipeline of the double-medium circulation buried pipe, and conveying the cooled height Wen Weishui into the double-medium buried pipe through the water pipe. On one hand, the tail water and CO2 are subjected to heat convection, the temperature of the tail water is reduced, and meanwhile, part of heat is stored in the soil by the tail water, and the temperature of the tail water is reduced after heat convection, so that the temperature of the soil is only slightly increased. The CO2 circulator is utilized to circulate and store the CO2 after heat exchange in a storage point, for example, a large or small karst cave exists under the ground of the surrounding area of the Wuhan, so that the high-temperature CO2 can be stored in the karst cave.
As shown in fig. 5, the winter heating of the present invention is mainly achieved by the following method:
firstly, whether the sealed CO2 is taken out is determined according to heating requirements, if a certain amount of heating is needed, the sealed CO2 is taken out by utilizing a CO2 circulator, and heat is exchanged to water by a double-medium circulation ground buried pipe. And then the high-temperature water after heat exchange is supplied to the building through a water pump.
If the heating requirement is smaller, CO2 circulation is not needed, and the water collector is used for collecting the heat of soil around the double-medium circulation buried pipe, and only one buried pipe is used. At this time, the temperature of the tail water after heating is lower, and the soil with the temperature increased due to cooling can be just reduced. In addition, the soil with the buried pipes laid on the other side can naturally adjust the restoration temperature.
According to the invention, the soil can be cooled by the buried pipe in summer and supplied for refrigerating by a user, and the circulated high Wen Weishui is circulated by the double-medium buried pipe, so that on one hand, a small amount of heat is stored in the soil, and on the other hand, a large amount of heat is transferred to the convective CO2 gas, so that the temperature of the soil is not greatly increased. Meanwhile, the CO2 after heat exchange is stored in a proper place outside the urban area by utilizing the CO2 circulator, so that on one hand, the carbon emission can be reduced, the urban temperature can be reduced, and the livability can be improved; on the other hand, heat may be stored to winter heating. Compared with the traditional air conditioning system, the operating system has the advantages of higher efficiency, less energy consumption, simple structure and low cost.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (6)
1. A dual medium circulation buried pipe heating and cooling system, comprising: the system comprises a buried pipe, a double-medium circulation buried pipe, a water collector, a control main station, a CO2 circulator and a storage point;
the control main station is connected with the water collector;
the water collector is arranged below a building;
the buried pipe and the double-medium circulation buried pipe are respectively arranged below empty lands at two sides of the building;
the buried pipe is communicated with the water collector through a pipeline;
the inside of the double-medium circulation buried pipe is of a concentric pipe structure; the concentric pipe structure is that an inner pipe is sleeved in an outer pipe; the diameter of the outer pipeline is larger than that of the inner pipeline;
the inner side pipeline of the double-medium circulation buried pipe is communicated with the CO2 circulator; the outer side pipeline of the double-medium circulating buried pipe is communicated with the water collector; the flow direction of the medium in the inner pipeline is opposite to the flow direction of the medium in the outer pipeline;
the CO2 circulator enables an inner pipeline to be connected with a pipeline; the outlet end of the CO2 circulator is communicated with a storage point through a CO2 pipeline.
2. A dual medium circulation buried pipe heating and cooling system according to claim 1, wherein said buried pipe is a U-shaped buried pipe.
3. A dual medium circulation buried pipe heating and cooling system according to claim 1, wherein said buried pipes and said dual medium circulation buried pipes are arranged in parallel in a single row with a fixed spacing therebetween.
4. A dual medium circulation buried pipe heating and cooling system according to claim 1, wherein the buried pipe and the dual medium circulation buried pipe have a buried depth in the range of 5 meters to 10 meters.
5. A dual medium circulation buried pipe heating and cooling system according to claim 1, wherein said storage point is an open site.
6. A dual medium circulation buried pipe heating and cooling system according to claim 1, wherein said control head station is arranged in the centre of the area to be controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311244476.5A CN117404828A (en) | 2023-09-25 | 2023-09-25 | Double-medium circulation ground buried pipe heating and refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311244476.5A CN117404828A (en) | 2023-09-25 | 2023-09-25 | Double-medium circulation ground buried pipe heating and refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117404828A true CN117404828A (en) | 2024-01-16 |
Family
ID=89487943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311244476.5A Pending CN117404828A (en) | 2023-09-25 | 2023-09-25 | Double-medium circulation ground buried pipe heating and refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117404828A (en) |
-
2023
- 2023-09-25 CN CN202311244476.5A patent/CN117404828A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8567482B2 (en) | Heat tube device utilizing cold energy and application thereof | |
| CN103925635B (en) | A kind of all-weather solar energy supplying system | |
| CN203657051U (en) | Direct condensation type air source heat pump floor heating system | |
| CN102278836B (en) | Separate hydraulic/geothermal energy cold and hot domestic hotwater integrated central air-conditioning unit | |
| CN107436055B (en) | Solar cross-season energy storage triple supply system | |
| CN201028893Y (en) | Ground source heat pump air conditioning system | |
| CN101769654B (en) | Heating system for compression heat pump and heating method thereof | |
| CN106482265A (en) | A kind of ground energy pipe laying constant temperature system of efficient energy-saving and emission-reducing | |
| CN202630513U (en) | Buried pipe heat exchanger for energy-saving ground source heat pump | |
| Zhai et al. | Experimental investigation and performance analysis of a ground-coupled heat pump system | |
| CN204987535U (en) | Energy storage formula air source heat pump unit | |
| CN201964551U (en) | Natural source air-conditioning system | |
| CN220871175U (en) | Double-medium circulation ground buried pipe heating and refrigerating system | |
| CN204227695U (en) | A kind of Split hot reclaims source pump | |
| CN117404828A (en) | Double-medium circulation ground buried pipe heating and refrigerating system | |
| CN102221251B (en) | Split depressurization water/ground energy cold and warm domestic hot water integrated central air conditioning unit | |
| CN104654623A (en) | Low-temperature solar energy underground heat accumulation system | |
| JP2000283597A (en) | Manufacture of heating-cooling combination facility of bulding | |
| KR20130058148A (en) | Heating and cooling system using space in abandoned mine | |
| CN106679016A (en) | Efficient, energy-saving and emission-reducing ground source constant-temperature device | |
| CN101813402B (en) | Heating station for implementing trans-season heat storage, cooling-storage adopting combined pump technology | |
| Urchueguia | Shallow geothermal and ambient heat technologies for renewable heating | |
| CN107726502A (en) | A kind of surface water using conduction oil as heat transfer medium ground source constant temperature system | |
| CN216790350U (en) | Heating and refrigerating system based on high mountain artesian well | |
| CN219980592U (en) | Shared drive device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |