CN202813622U - Underground heat exchanging system - Google Patents
Underground heat exchanging system Download PDFInfo
- Publication number
- CN202813622U CN202813622U CN 201220478913 CN201220478913U CN202813622U CN 202813622 U CN202813622 U CN 202813622U CN 201220478913 CN201220478913 CN 201220478913 CN 201220478913 U CN201220478913 U CN 201220478913U CN 202813622 U CN202813622 U CN 202813622U
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- Prior art keywords
- underground heat
- pipeline
- water
- water injection
- soil
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- Expired - Fee Related
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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 discloses an underground heat exchanging system, which comprises an underground heat exchanger pipeline embedded in a tube well, wherein the underground heat exchanger pipeline is connected with a ground source heat pump. The underground heat exchanging system is characterized in that the tube well is also provided with a pressurized water injection pipeline which is used for injecting water to soil around the underground heat exchanger pipeline to increase soil moisture content; the pressurized water injection pipeline is provided with a plurality of water injection nozzles; and the pressurized water injection pipeline is connected with a pressurized water pump which is connected with a water injection controller. With the adoption of the underground heat exchanging system, the soil moisture content is detected, when the preset value is achieved, the periphery of an energy conversion pipeline is pressurized and is injected with water; through adding the soil moisture content, the purpose of increasing soil heat transfer coefficients is achieved; and meanwhile, an impervious bed is added in refilling, so that the injected water permeates into the soil around a heat exchanging tube along the side direction, and the injected water is prevented from only permeating downwards, thereby achieving the purpose of strengthening energy conversion.
Description
Technical field
The utility model belongs to the ground-source heat pump central air-conditioning field, specifically a kind of underground heat exchange system.
Background technology
In recent years, energy and environment have become the common topic of paying close attention in various countries, and energy-saving and emission-reduction also more and more become a vital task in the national development.In recent years along with China's economic development, to living and the requirement of the amenity of office etc. improves, but traditional be coal such as burning coal boiler room fuel, can produce a large amount of SO during burning
2, NO
XDeng pernicious gas and CO
2Isothermal chamber effect gas; The cold-producing medium that air-conditioning uses can damage atmospheric ozone layer.
Earth source heat pump is that the novel energy that utilizes superficial-layer geothermal energy to carry out heating and refrigerating utilizes technology, have energy-efficient, operating cost is low, obvious environment benefit, security of operation is stable, the advantages such as comfort level height.After the nineties in 20th century, China begins earth source heat pump research is started late in the world, uses also not extensively, but development is rapid, has a high potential.At present, construction and indoor heat-exchange system (earth source heat pump unit, water circuit system, electrical equipment robot control system(RCS), air path system etc.) technology are relatively ripe on the ground, and the problem that has restricted the universal development of ground source heat pump technology mainly concentrates on the initial investment of reduction system, alleviate the underground buried tube construction, guarantee on system's reliability service.
Earth source heat pump flows in closing pipe line by the circulation fluid (water or the anti-icing fluid take water as main component) that is embedded in the underground heat exchanger, Conversion of Energy between realization system and the earth is realized the effect of geothermal heat pump air-conditioning system again by heat-exchange system on the ground.It is perpendicularly buried pipe that ground heat exchanger arranges the most frequently used method of construction.But pipe laying depth is generally at 60-100 meters, and two hole spacings are between 4-6 rice.Reducing pipe laying depth, cost will be effectively saved in the effect of the underground transducer of performance under the prerequisite of increasing pipe laying distance, promote applying of earth source heat pump.
Summary of the invention
Goal of the invention of the present utility model is to overcome the deficiencies in the prior art and provides a kind of cost low, can take full advantage of the underground heat exchange system of geothermal energy.
The technical scheme in the invention for solving the technical problem is: comprise the ground heat exchanger pipeline that is embedded in the pipe well, the ground heat exchanger pipeline links to each other with earth source heat pump; It is characterized in that: also be provided with in the pipe well for to the water filling of ground heat exchanger pipeline surrounding soil to increase the pressure water injection pipeline of soil moisture content; The pressure water injection pipeline is provided with a plurality of water jets; The pressure water injection pipeline links to each other with pressure pump; Pressure pump links to each other with water filling controller.
Described water filling controller be arranged at pipe well in link to each other for detection of the Temperature Humidity Sensor of soil temperature and humidity.
Be provided with in the described pipe well and be used for more than one preventing that institute's water filling is to the impermeable stratum of pipe well bottom leaky.
Described pipe well bottom is provided with the impermeable stratum that prevents that moisture runs off downwards.
Described water jet peripheral hardware is useful on the ventilative mesh sponge that prevents that water jet from stopping up.
Because the moisture content of soil has affected heat conductivility, the moisture content of soil is directly proportional with thermal conductivity factor, thereby by changing soil moisture content, increasing specific heat capacity holds and the coefficient of conductivity, can increase the transducing effect of underground heat exchange pipeline, thereby improve the operating efficiency of earth-source hot-pump system, and then can reduce pipe laying depth, reach the purpose that reduces difficulty of construction, reduces investment outlay.
The utility model is by detecting soil moisture content, when reaching setting value around the transducing pipeline pressure water injection, by increasing soil moisture content, the purpose that increases to reach the soil heat transfer coefficient.Increase impermeable stratum during simultaneously backfill, institute's water filling is divided mainly along direction finding infiltrate soil around the heat exchanger tube, prevent from that institute's water filling from only dividing to infiltrate downwards, thereby reach the purpose of reinforcement transducing.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure, 1, pressure pump, 2, water filling controller, 3, Temperature Humidity Sensor, 4, the ground heat exchanger pipeline, 5, water jet, 6, impermeable stratum, 7, the pressure water injection pipeline, 8, backfilling material.
The specific embodiment
Among Fig. 1, near ground heat exchanger pipeline 4, be provided with the pressure water injection pipeline 7 of some water jets 5.Temperature Humidity Sensor 3 in being arranged in pipe well detects when reaching the soil temperature and humidity setting value, thereby automatic or manual is opened water filling controller 2 startup pressure pumps 1 as required, to the pressure water injection pipeline 7 that is arranged in pipe well central authorities with heat exchange manifold at a slow speed evenly water filling on every side.Can change soil moisture, strengthen the transducing effect of transducer.When preparing the applying ground source heat pump air-conditioning in two seasons of summer in winter, the pressurized control switch of water injecting pipeline can be opened in advance, the heat energy value can be when beginning to use, reached as early as possible.
According to the permeability of soil as can be known, after the beginning water filling, first infiltration downwards of the water that injects, finally accumulate in the pipe well bottom, do not reach the purpose that increases the transducing effect, thus, need to increase when well is buried in backfill some impermeable stratums 6, particularly shaft bottom, the thickening impermeable stratum is laid.8 is backfilling material.The height of two-layer impermeable stratum should determine according to the soil property of job location.The construction material of impermeable stratum can be selected according to actual conditions the material of the convenient constructions such as cement-base infiltration crystallization waterproof material or waterproof expansion portland cement.
The adding of pressure water injection pipeline there is no need vertically to bury well at each carries out, can be according to the geological conditions of Specific construction, and the certain distance in interval adds pipeline.
In order to prevent that water jet 5 from stopping up, can install ventilative mesh sponge additional at water jet 5, can effectively stop the obstruction mouths of pipe such as soil, this sponge good water permeability, little to resistance to water-flow.Use by this, can guarantee anti-foreign matters from being blocked pressure water injection pipeline water jet under the prerequisite of flood effectiveness.
Claims (5)
1. a underground heat exchange system comprises the ground heat exchanger pipeline (4) that is embedded in the pipe well, and ground heat exchanger pipeline (4) links to each other with earth source heat pump; It is characterized in that: also be provided with in the pipe well for to ground heat exchanger pipeline (4) surrounding soil water filling to increase the pressure water injection pipeline (7) of soil moisture content; Pressure water injection pipeline (7) is provided with a plurality of water jets (5); Pressure water injection pipeline (7) links to each other with pressure pump (1); Pressure pump (1) links to each other with water filling controller (2).
2. underground heat exchange system according to claim 1 is characterized in that: described water filling controller (2) be arranged at pipe well in link to each other for detection of the Temperature Humidity Sensor (3) of soil temperature and humidity.
3. underground heat exchange system according to claim 1 is characterized in that: be provided with in the described pipe well more than one for preventing that institute's water filling is to the impermeable stratum (6) of pipe well bottom leaky.
4. underground heat exchange system according to claim 1 is characterized in that: be provided with the impermeable stratum that prevents that moisture runs off downwards bottom the described pipe well.
5. underground heat exchange system according to claim 1 is characterized in that: described water jet (5) peripheral hardware is useful on the ventilative mesh sponge that prevents that water jet from stopping up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478913 CN202813622U (en) | 2012-09-19 | 2012-09-19 | Underground heat exchanging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478913 CN202813622U (en) | 2012-09-19 | 2012-09-19 | Underground heat exchanging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202813622U true CN202813622U (en) | 2013-03-20 |
Family
ID=47872485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220478913 Expired - Fee Related CN202813622U (en) | 2012-09-19 | 2012-09-19 | Underground heat exchanging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202813622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949667A (en) * | 2017-03-15 | 2017-07-14 | 西南科技大学 | A kind of efficient ground-source heat pump heat-exchanger rig for adjustably descending thermal and humidity environment |
| CN107014114A (en) * | 2017-03-15 | 2017-08-04 | 西南科技大学 | A kind of efficient underground heat-exchanger device of enclosed standing column well earth source heat pump |
-
2012
- 2012-09-19 CN CN 201220478913 patent/CN202813622U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949667A (en) * | 2017-03-15 | 2017-07-14 | 西南科技大学 | A kind of efficient ground-source heat pump heat-exchanger rig for adjustably descending thermal and humidity environment |
| CN107014114A (en) * | 2017-03-15 | 2017-08-04 | 西南科技大学 | A kind of efficient underground heat-exchanger device of enclosed standing column well earth source heat pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20130919 |