CN204141896U - A kind of device improving ground heat exchanger performance - Google Patents
A kind of device improving ground heat exchanger performance Download PDFInfo
- Publication number
- CN204141896U CN204141896U CN201420095455.1U CN201420095455U CN204141896U CN 204141896 U CN204141896 U CN 204141896U CN 201420095455 U CN201420095455 U CN 201420095455U CN 204141896 U CN204141896 U CN 204141896U
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- China
- Prior art keywords
- heat exchanger
- water
- pipe
- ground heat
- moisturizing
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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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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a kind of device improving ground heat exchanger performance, this device comprises water supply tank (1), water purifier (2), filling pipe (6), underground buried tube vertical shaft (4) and ground heat exchanger water inlet pipe and water outlet pipe (5).The moisture of the utility model in backfilling material near the water in water supply tank (1) addedly pipe laying and initial soil, improves the heat exchange efficiency of ground heat exchanger.Open by-passing valve (7) when moisturizing water temperature is suitable, close control valve (8), a moisturizing; Ground heat exchanger generation heat history or moisturizing water temperature over-high or too low time, open control valve (8), turn down or close by-passing valve (7), cool or heat moisturizing, the long-term stability realizing ground heat exchanger is run.
Description
Technical field
The utility model relates to the buried tube heat exchanger of soil source heat pump system, is specifically related to a kind of device improving ground heat exchanger performance.
Background technology
Ground heat exchanger is as the critical component of soil source heat pump system, and pipe laying form has level and vertical two kinds of modes.Due to vertical buried tube have heat transfer effect stable, take up an area less, the advantage such as easy construction, use more extensive.The pipe laying form that vertical buried tube is conventional comprises U-shaped pipe, sleeve pipe, helix tube etc.
Ground heat exchanger belongs to the heat conduction that solid not close contacts due to wherein pipeline and surrounding backfilling material and the heat exchange of soil, and unit length heat-transfer capability is poor.If earth-source hot-pump system cooling and heating load is uneven, longtime running generation heat history, then can make the temperature of soil near underground pipe constantly raise, and water content declines, and heat transfer property is worsened further.
Thermal physical property parameter according to typical soil in " earth-source hot-pump system engineering legislation " (GB50366-2009) Appendix B is taken passages, the thermal conductivity factor of fine and close sand (water content 5%) is 2.1-2.3W/(mK), and the fine and close sand thermal conductivity factor of water content 15% rises to 2.8-3.8W/(mK), thermal conductivity factor increases 30%-65% along with the raising of water content.Research show [1], the coefficient of performance of the earth source heat pump of dry soil is lower than the COP of slowly drained soil by 35%, when soil moisture content lower than 15% time, along with the reduction of water content.The cycle performance coefficient of heat pump will decline rapidly.{[1]LeongWH,TarnawskiVR,AittomakiA.Effectofsoiltypeandmoisturecontentongroundheatpumpperformance[J].InternationalJournalofRefrigeration,1998,21(8):595-606}
Utility model content
In order to overcome the defect existed in prior art, the utility model provides a kind of device improving ground heat exchanger performance, the water content of backfilling material and soil near underground pipe is improved by moisturizing, improve its heat transfer effect, eliminate simultaneously or alleviate the heat history phenomenon of ground heat exchanger, to realize the Effec-tive Function steady in a long-term of earth-source hot-pump system.
Its technical scheme is as follows:
Improve a device for ground heat exchanger performance, be connected in sequence primarily of water supply tank 1, water purifier 2, heat exchanger 3, underground buried tube vertical shaft 4, water inlet pipe and water outlet pipe 5, filling pipe 6, by-passing valve 7 and control valve 8.
Preferably, filling pipe can be fixed together with underground pipe pipe fitting etc., and when in underground pipe construction, lower pipe enters underground pipe vertical shaft, filling pipe can as the aid of lower pipe.In addition, the heat exchange efficiency of ground heat exchanger can also be improved when filling pipe is the metallic conduits such as stainless steel.
The beneficial effects of the utility model: the device of the improvement ground heat exchanger performance that the utility model relates to is by the moisture of backfilling material near addedly pipe laying and soil, also improve the thermal conductivity factor of backfilling material and surrounding soil while improving its water content, obviously can improve the heat exchange efficiency of ground heat exchanger.
The utility model is owing to being provided with water purifier, moisturizing source can diversification, and both can be building rainwater, middle water even stain disease, also can be Reclaimed Municipal Wastewater, the adverse consequences such as this is conducive to the comprehensive utilization ratio improving water resource undoubtedly, the land subsidence that alleviation groundwater overdraft causes.
The utility model, owing to being provided with heat exchanger, can be eliminated by the moisturizing infiltrating irrigation underground pipe vertical shaft of appropriate water temperature or improve the heat history problem of ground heat exchanger; Meanwhile, also can be with moisturizing indirect utilization or the underground storage that heating agent realizes natural cooling and heating source and the industrial waste heats etc. such as solar energy.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model improves the device of ground heat exchanger performance.
Reference numeral: 1-water supply tank; 2-water purifier; 3-heat exchanger; 4-underground pipe vertical shaft; 5-ground heat exchanger water inlet pipe and water outlet pipe; 6-filling pipe; 7-by-passing valve; 8-control valve.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in more detail.
As shown in Figure 1, a kind of device improving ground heat exchanger performance, is connected in sequence primarily of water supply tank 1, water purifier 2, heat exchanger 3, underground buried tube vertical shaft 4, water inlet pipe and water outlet pipe 5, filling pipe 6, by-passing valve 7 and control valve 8.Filling pipe 6 can be fixed together with underground pipe pipe fitting etc., and when in underground pipe construction, lower pipe enters underground pipe vertical shaft, filling pipe can as the aid of lower pipe.In addition, the heat exchange efficiency of ground heat exchanger can also be improved when filling pipe is the metallic conduits such as stainless steel.
When moisturizing water temperature is between 10-30 DEG C, open by-passing valve 7, close control valve 8, the water in water supply tank 1 is made to flow through by-passing valve 7 and filling pipe 6 successively after water purifier 2 purifies, backfilling material in direct infiltrating irrigation underground pipe vertical shaft 4, thus the water content of maintenance backfilling material and surrounding soil is more than 15%, improve the performance heat exchange efficiency etc. of ground heat exchanger.
When moisturizing temperature is lower than 10 DEG C, opens control valve 8, turn down or close by-passing valve 7, making a part of moisturizing obtain heating heat through over-heat-exchanger 3 can from natural thermals source such as solar water heaters, raises moisturizing temperature between 10-30 DEG C; Correspondingly, when moisturizing temperature is higher than 30 DEG C, open control valve 8, making a part of moisturizing obtain cooling low-temperature receiver through over-heat-exchanger 3 can be phreatic water etc., reduces moisturizing temperature between 10-30 DEG C.
When ground heat exchanger generation heat history underground pipe vertical shaft mean temperature is higher than 30 DEG C or lower than 10 DEG C, open control valve 8, turn down or close by-passing valve 7, respectively water cooled or heat, regulate moisturizing water temperature between 10-30 DEG C, make underground pipe vertical shaft mean temperature be adjusted between 10-30 DEG C, the long-term stability maintaining ground heat exchanger is run.
The above; be only the utility model preferably detailed description of the invention; protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen in protection domain of the present utility model.
Claims (1)
1. one kind is improved the device of ground heat exchanger performance, it is characterized in that, be connected in sequence by water supply tank (1), water purifier (2), heat exchanger (3), underground buried tube vertical shaft (4), water inlet pipe and water outlet pipe (5), filling pipe (6), by-passing valve (7) and control valve (8); Filling pipe (6) and underground pipe pipe fitting are fixed together, and filling pipe (6) is stainless steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095455.1U CN204141896U (en) | 2014-03-04 | 2014-03-04 | A kind of device improving ground heat exchanger performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095455.1U CN204141896U (en) | 2014-03-04 | 2014-03-04 | A kind of device improving ground heat exchanger performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204141896U true CN204141896U (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420095455.1U Expired - Fee Related CN204141896U (en) | 2014-03-04 | 2014-03-04 | A kind of device improving ground heat exchanger performance |
Country Status (1)
| Country | Link |
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| CN (1) | CN204141896U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123631A (en) * | 2016-08-18 | 2016-11-16 | 山东省北斗制冷设备有限公司 | Underground tubulation multiply-connected formula heat abstractor |
| CN106989435A (en) * | 2017-03-21 | 2017-07-28 | 上海理工大学 | Primary heater combines hot water supply system and its control method with end superheater |
| CN109405128A (en) * | 2018-09-09 | 2019-03-01 | 广州市捷迅机电工程有限公司 | A kind of double air-out air cooler equipment of Integral mobile |
-
2014
- 2014-03-04 CN CN201420095455.1U patent/CN204141896U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123631A (en) * | 2016-08-18 | 2016-11-16 | 山东省北斗制冷设备有限公司 | Underground tubulation multiply-connected formula heat abstractor |
| CN106123631B (en) * | 2016-08-18 | 2018-08-07 | 山东省北斗制冷设备有限公司 | The multiply-connected formula radiator of underground tubulation |
| CN106989435A (en) * | 2017-03-21 | 2017-07-28 | 上海理工大学 | Primary heater combines hot water supply system and its control method with end superheater |
| CN106989435B (en) * | 2017-03-21 | 2019-10-29 | 上海理工大学 | Primary heater combines hot water supply system and its control method with end superheater |
| CN109405128A (en) * | 2018-09-09 | 2019-03-01 | 广州市捷迅机电工程有限公司 | A kind of double air-out air cooler equipment of Integral mobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20160304 |
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| CF01 | Termination of patent right due to non-payment of annual fee |