CN203216151U - Buried pipe for ground source heat pump - Google Patents
Buried pipe for ground source heat pump Download PDFInfo
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- CN203216151U CN203216151U CN 201320112388 CN201320112388U CN203216151U CN 203216151 U CN203216151 U CN 203216151U CN 201320112388 CN201320112388 CN 201320112388 CN 201320112388 U CN201320112388 U CN 201320112388U CN 203216151 U CN203216151 U CN 203216151U
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- pipe
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- heat pump
- heat
- thermal insulation
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Abstract
The utility model relates to a buried pipe for a ground source heat pump. The buried pipe comprises a main water inlet pipe, a main water return pipe and a plurality of U-shaped buried pipes for communicating a heat pump unit, wherein a water inlet pipe and a water return pipe are respectively arranged at the two ends of each U-shaped buried pipe, the plurality of U-shaped buried pipes are connected between the main water inlet pipe and the main water return pipe in parallel, the water inlet pipe of each U-shaped buried pipe is respectively communicated with the main water inlet pipe, the water return pipe of each U-shaped buried pipe is respectively communicated with the main water return pipe, and heat insulation sleeves are sheathed outside the water return pipes. The buried pipe for the ground source heat pump, disclosed by the utility model, has a simple structure, the water inlet pipes of the buried pipes are high in heat dissipation capability, and the heat insulation treatment is performed outside the water return pipes, so that the heat insulation capability is improved, heat dissipated from the water inlet pipes is not absorbed by the water return pipes, the whole heat dissipation capability of buried pipe wells is improved, the number of wells dug by the buried pipes can be effectively reduced, and the investment cost is reduced.
Description
Technical field
The utility model relates to the central air conditioner system technical field, especially a kind of used for geothermal heat pump ground pipe laying.
Background technology
Along with people constantly increase the demand of the energy, the development and use regenerative resource becomes the Critical policies that addresses this problem.Earth-source hot-pump system is as a kind of efficient, energy-conservation, joint money, both cooling and heating, flexible operation and free of contamination novel central air conditioner system, more and more be subjected to people's attention, earth-source hot-pump system utilizes underground normal temperature soil resource, by compressor assembly, finish the refrigeration or heat, need not any manual resource, traditional heating system and central air conditioner systems such as boiler or city planting ductwork have thoroughly been replaced, it does not discharge any waste gas, waste water, waste residue to the external world, making people away from dust, waste gas and mould, is a kind of ideal green air-conditioning technical.
As water by water pump can from lower hoist flow, heat pump can be delivered to energy the device systems of temperature height (high-grade energy) exactly from temperature low (low-grade energy).It is that to spend a part of high mass-energy be cost, obtains energy from natural environment, and together with the high mass-energy that spends to user's heat supply, thereby effectively utilized low-level heat energy.
Earth source heat pump is to have utilized solar energy resources that earth soil stores as Cooling and Heat Source, carries out the air-conditioning system of power conversion.Surface soil and water body are not only a huge solar thermal collector, collected 47% solar radiation energy, utilize human every year (underground water body is to accept solar radiation energy indirectly by soil) more than 500 times of energy, and be a huge dynamic power balance sysmte, the soil natural ground on the face of land keeps energy to accept and the relative equilibrium of dispersing.This makes and utilizes the intimate unlimited solar energy or the ground that are stored in wherein can become possibility.Thus, the earth source heat pump utilization is a kind of technology of the regenerative resource of cleaning.Main feature is as follows:
A, environmental protection
Do not have combustion process, avoided any flue dust of discharging and harmful substance, obvious social benefit.Freely use geothermal energy resources, both solved the thermal pollution problem, further improve Energy Efficiency Ratio again.The off-premises station that does not have conventional air-cooled heat pump air-conditioning can generation not make us uncomfortable tropical island effect.
B, energy-efficient
The temperature of ground energy or shallow surface geothermal energy resources is relatively stable throughout the year, winter is than ambient air temperature height, summer is lower than ambient air temperature, be good source heat pump heat and air conditioner energy source, this temperature characterisitic makes geothermal heat pump air-conditioner higher by 40% than traditional air-conditioning system operational efficiency, therefore wants energy-conservation and saves operating cost about 40%.In addition, energy temperature more constant characteristic in ground makes that the source pump operation is more reliable, and is stable, also guaranteed high efficiency and the economy of system.Estimate that according to the EPA of Environmental Protection Agency the earth source heat pump that design and installation is good can be saved the heat supply of user 30-40%, the operating cost of refrigeration air-conditioner on average.
C, water saving economize ground, flexible safety
Be the source body with soil, to its absorption or emit energy, consume water resources can not pollute it yet.Saved the boiler room, attached oil tank homalographic is saved the machine room space.
Really accomplish " a tractor serves several purposes ".Utilize the underground water heat pump to heat to building winter, summer is to the building cooling, improved usage ratio of equipment (in the building that domestic hot-water's demand is arranged, select for use the equipment of corresponding type to can be building the domestic hot-water is provided).Unit can be placed in Anywhere neatly, conserve space, and system's end also can be made multiple choices, health and potential safety hazards such as no coal storage, oil storage tank.The automaticity height need not the professional and controls.
D, stable and reliable operation
The temperature of underground is relatively stable throughout the year, the scope of its fluctuation is far smaller than the change of air, it is the cold source of air conditioning of good source heat pump heat, the operating condition of unit is stable, because heat radiation, heat-obtaining all rely on deep soil not to be subjected to the influence of variation of ambient temperature, even the winter heating's amount in cold can not decay yet, more there is not the consideration of frosting defrosting, the unit main parts size all adopts import equipment, safeguard that simply main frame service life can reach more than 20 years, unit compactness, saving space, automatic control degree height, but unmanned.
Can not produce cold decay, during common unit thermal extremes in summer heat radiation unfavorable, refrigeration descends.
Underground buried tube adopts the PE/PPR dedicated pipe, and acid and alkali resistance, anti-expansion, not aging are adopted hot melt to connect and need do not safeguarded that the life-span reached more than 50 years.
E, obvious environment benefit
The use electric energy of earth source heat pump, this energy as a kind of cleaning of electric energy, but when generating, consume primary energy and cause pollutant and discharge of carbon dioxide greenhouse gas.So the pollution of energy-conservation equipment itself is just little.Design the power consumption of good earth source heat pump unit, compare with air source heat pump, be equivalent to reduce more than 30%, compare with the electricity heating, be equivalent to reduce more than 70%.
F, a tractor serves several purposes, applied range
But earth-source hot-pump system can heating, air-conditioning, domestic hot-water supply also, a tractor serves several purposes, one cover system can be replaced two covering devices or the system that original boiler adds air-conditioning, can be applicable to buildings such as hotel, market, office building, be more suitable in heating, the air-conditioning of villa, dwelling house and the building that has the domestic hot-water to need.
In ground source heat pump technology, ground heat exchanger is a very important part wherein, and the U-shaped effective radiating tube of doing, but present data model are example with single U pipe, now often whole U-shaped pipeline, wait to change into a vertical tube, carry out the calculating of every meter heat exchange amount.
We are example with the summer, in actual condition, ground pipe laying heat exchange will make the temperature of periphery raise the formation temperature gradient, constantly toward peripheral diffusion, temperature around that is to say when originally moving is lower, and two pipes can outwards conduct heat, but after operation a period of time, temperature around water inlet pipe and the return pipe constantly rises, because there are certain temperature difference in water inlet pipe and return pipe, as intake-outlet, consider the intake-outlet section with underground two meters earlier.
The temperature of buried water inlet tube pipe is generally 35 ℃, and the temperature of return pipe is generally 30 ℃, and the temperature of surrounding soil is generally about 18 ℃, when originally moving, the temperature of water inlet pipe and return pipe all is higher than environment temperature, can effectively dispel the heat, but after operation a period of time, the temperature of surrounding soil constantly rises, temperature around the water inlet pipe will be near 35 ℃, expansion to the periphery successively then, and temperature reduces, arrive return pipe, also might be higher than 30 ℃.
Be higher than in 30 ℃ in the return pipe environment temperature, return pipe does not continue heat radiation, begins heat absorption on the contrary, and this is the temperature of rising backwater, and this is incongruent with present model, in this case, should take adiabatic measure, prevents that return pipe from absorbing heat.
Current flow in U-shaped pipe, constantly heat radiation, constantly reduce along its flow direction temperature, water inlet pipe and the temperature difference between the return pipe in U-shaped pipe bottom are not very big, water inlet pipe circumference soil, but the outer soil moisture of return pipe remains unchanged less than temperature in the return pipe, and return pipe still has thermolysis.
At above-mentioned phenomenon, we give ground pipe laying water return pipeline, and addition portion is divided thermal insulation casing, to improve the heat-sinking capability of ground pipe embedded well integral body.Ground pipe laying well-digging expense be in the earth-source hot-pump system expense than higher, and the ground pipe laying looses/the heat-obtaining ability, it is the key parameter that determines ground pipe laying quantity, pipe laying looses/the heat-obtaining ability intentinonally, to reduce the well-digging quantity of ground pipe laying, reduce investment cost, when heat-transfer capability increases by 30% exchange capability of heat, just can reduce by 30% well-digging quantity.
The utility model content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of used for geothermal heat pump ground pipe laying is provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of used for geothermal heat pump ground pipe laying, comprise for the main water inlet tube, main water return tube and a plurality of U-shaped ground pipe laying that are communicated with source pump, the two ends of each U-shaped ground pipe laying are respectively water inlet pipe and return pipe, a plurality of U-shaped ground pipe laying is connected between main water inlet tube and the main water return tube in parallel, the water inlet pipe of each U-shaped ground pipe laying is connected with main water inlet tube respectively, the return pipe of each U-shaped ground pipe laying is connected with main water return tube respectively, the outer thermal insulation casing that is arranged with of return pipe.
Further, water inlet pipe is the PE pipe of DN32, and return pipe is the PE pipe/PPR pipe of DN32, and thermal insulation casing is the PPR pipe of DN40.
Further, water inlet pipe is the PE pipe of DN32, and return pipe is the PE pipe/PPR pipe of DN32, and thermal insulation casing is the PPR pipe of DN50, and the two ends of thermal insulation casing are provided with seal plug.
Further, water inlet pipe is the PE pipe of DN32, and return pipe is the PE pipe/PPR pipe of DN25, and thermal insulation casing is the PPR pipe of DN32/DN40, and the two ends of thermal insulation casing are provided with seal plug.
Further, water inlet pipe is the PE pipe of DN32, and return pipe is the PPR pipe of DN32.
Further, be provided with polyurethane insulation coating between return pipe and the thermal insulation casing, its thermal insulation casing is the PPR pipe/PE pipe of DN40/DN50, and the two ends of thermal insulation casing are provided with seal plug.
The beneficial effects of the utility model are: the buried tubular construction of used for geothermal heat pump of the present utility model is simple, the water inlet pipe heat-sinking capability height of ground pipe laying, by return pipe is incubated processing outward, improved heat insulation capacity, the heat of avoiding water inlet pipe to shed is absorbed by return pipe, improve the heat-sinking capability of ground pipe embedded well integral body, can effectively reduce the well-digging quantity of ground pipe laying, reduce investment cost.
Description of drawings
Below in conjunction with drawings and embodiments the utility model is further specified.
Fig. 1 is refrigeration schematic diagram of the present utility model;
Fig. 2 is heating effect schematic diagram of the present utility model;
Fig. 3 is structural representation of the present utility model.
1. main water inlet tubes among the figure, 2. main water return tube, 3. water inlet pipe, 4. return pipe, 5. thermal insulation casing.
The specific embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
As Fig. 1, Fig. 2 and a kind of used for geothermal heat pump ground pipe laying shown in Figure 3, comprise for the main water inlet tube 1, main water return tube 2 and a plurality of U-shaped ground pipe laying that are communicated with source pump, the two ends of each U-shaped ground pipe laying are respectively water inlet pipe 3 and return pipe 4, a plurality of U-shaped ground pipe laying is connected between main water inlet tube 1 and the main water return tube 2 in parallel, the water inlet pipe 3 of each U-shaped ground pipe laying is connected with main water inlet tube 1 respectively, the return pipe 4 of each U-shaped ground pipe laying is connected with main water return tube 2 respectively, the outer thermal insulation casing 5 that is arranged with of return pipe 4.
Embodiment one:
In process of refrigerastion; in order to prevent the return pipe heat absorption; influence the heat-sinking capability of whole U-shaped pipe; we consider return pipe 0 to 50m(0 is arrived the 100m any number all in scope of patent protection) the interpolation thermal insulation casing; water inlet pipe 3 is the PE pipe of DN32; return pipe 4 is the PE pipe/PPR pipe of DN32, and thermal insulation casing 5 is the PPR pipe of DN40.
Embodiment two:
In process of refrigerastion; in order to prevent the return pipe heat absorption; influence the heat-sinking capability of whole U-shaped pipe; we consider return pipe 0 to 50m(0 is arrived the 100m any number all in scope of patent protection) the interpolation thermal insulation casing; water inlet pipe 3 is the PE pipe of DN32; return pipe 4 is the PE pipe/PPR pipe of DN32, and thermal insulation casing 5 is the PPR pipe of DN50, and the two ends of thermal insulation casing 5 are provided with seal plug.
Embodiment three:
In process of refrigerastion; in order to prevent the return pipe heat absorption; influence the heat-sinking capability of whole U-shaped pipe; we consider return pipe 0 to 50m(0 is arrived the 100m any number all in scope of patent protection) the interpolation thermal insulation casing; water inlet pipe 3 is the PE pipe of DN32; return pipe 4 is the PE pipe/PPR pipe of DN25, and thermal insulation casing 5 is the PPR pipe of DN32/DN40, and the two ends of thermal insulation casing 5 are provided with seal plug.
Embodiment four:
In process of refrigerastion, in order to prevent the return pipe heat absorption, influence the heat-sinking capability of whole U-shaped pipe, water inlet pipe 3 is the PE pipe of DN32, return pipe 4 is the PPR pipe of DN32.
Embodiment five:
In process of refrigerastion; in order to prevent the return pipe heat absorption; influence the heat-sinking capability of whole U-shaped pipe; we consider return pipe 0 to 50m(0 is arrived the 100m any number all in scope of patent protection) the interpolation thermal insulation casing; be provided with polyurethane insulation coating between return pipe 4 and the thermal insulation casing 5; PPR pipe/PE the pipe that its thermal insulation casing 5 is DN40/DN50, the two ends of thermal insulation casing 5 are provided with seal plug.
By above multiple implementation method, can in application process, improve the heat-sinking capability of water inlet pipe, reduce the heat absorption capacity of return pipe, the heat of avoiding water inlet pipe to shed is absorbed by return pipe, improve the heat-sinking capability of ground pipe embedded well integral body, can effectively reduce the well-digging quantity of ground pipe laying, reduce investment cost, satisfy the requirement of various fields of employment, have good promotion effect.
Be enlightenment with above-mentioned foundation desirable embodiment of the present utility model, by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (6)
1. used for geothermal heat pump ground pipe laying, comprise for the main water inlet tube (1) that is communicated with source pump, main water return tube (2) and a plurality of U-shaped ground pipe laying, the two ends of each U-shaped ground pipe laying are respectively water inlet pipe (3) and return pipe (4), it is characterized in that: a plurality of U-shaped ground pipe laying is connected between main water inlet tube (1) and the main water return tube (2) in parallel, the water inlet pipe of each U-shaped ground pipe laying (3) is connected with main water inlet tube (1) respectively, the return pipe of each U-shaped ground pipe laying (4) is connected with main water return tube (2) respectively, the outer thermal insulation casing (5) that is arranged with of described return pipe (4).
2. used for geothermal heat pump according to claim 1 ground pipe laying, it is characterized in that: described water inlet pipe (3) is the PE pipe of DN32, and return pipe (4) be that the PE pipe/PPR of DN32 manages, and described thermal insulation casing (5) is that the PPR of DN40 manages.
3. used for geothermal heat pump according to claim 1 ground pipe laying, it is characterized in that: described water inlet pipe (3) is the PE pipe of DN32, return pipe (4) is the PE pipe/PPR pipe of DN32, and described thermal insulation casing (5) is the PPR pipe of DN50, and the two ends of thermal insulation casing (5) are provided with seal plug.
4. used for geothermal heat pump according to claim 1 ground pipe laying, it is characterized in that: described water inlet pipe (3) is the PE pipe of DN32, return pipe (4) is the PE pipe/PPR pipe of DN25, and thermal insulation casing (5) is the PPR pipe of DN32/DN40, and the two ends of thermal insulation casing (5) are provided with seal plug.
5. used for geothermal heat pump according to claim 1 ground pipe laying, it is characterized in that: described water inlet pipe (3) is the PE pipe of DN32, described return pipe (4) be that the PPR of DN32 manages.
6. used for geothermal heat pump according to claim 1 ground pipe laying, it is characterized in that: be provided with polyurethane insulation coating between described return pipe (4) and the thermal insulation casing (5), its thermal insulation casing (5) is the PPR pipe/PE pipe of DN40/DN50, and the two ends of thermal insulation casing (5) are provided with seal plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112388 CN203216151U (en) | 2013-03-13 | 2013-03-13 | Buried pipe for ground source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112388 CN203216151U (en) | 2013-03-13 | 2013-03-13 | Buried pipe for ground source heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203216151U true CN203216151U (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320112388 Expired - Lifetime CN203216151U (en) | 2013-03-13 | 2013-03-13 | Buried pipe for ground source heat pump |
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| Country | Link |
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| CN (1) | CN203216151U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374121A (en) * | 2014-12-03 | 2015-02-25 | 北京中科华誉能源技术发展有限责任公司 | Large-diameter steel sleeve heat exchange device capable of extracting geothermal energy |
| CN105650944A (en) * | 2015-11-09 | 2016-06-08 | 吴伟佳 | Ground source recovery system and method |
| CN105865085A (en) * | 2016-03-28 | 2016-08-17 | 天津城建大学 | Coupled saline water layer forced convection well type ground-source heat pump system and operation method |
| CN109028623A (en) * | 2018-08-02 | 2018-12-18 | 王洁 | A kind of shallow layer geothermal energy underground buried tube system structure and application method |
-
2013
- 2013-03-13 CN CN 201320112388 patent/CN203216151U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374121A (en) * | 2014-12-03 | 2015-02-25 | 北京中科华誉能源技术发展有限责任公司 | Large-diameter steel sleeve heat exchange device capable of extracting geothermal energy |
| CN105650944A (en) * | 2015-11-09 | 2016-06-08 | 吴伟佳 | Ground source recovery system and method |
| CN105865085A (en) * | 2016-03-28 | 2016-08-17 | 天津城建大学 | Coupled saline water layer forced convection well type ground-source heat pump system and operation method |
| CN105865085B (en) * | 2016-03-28 | 2018-03-02 | 天津城建大学 | Couple salt water layer forced convertion well formula soil source heat pump system and operation method |
| CN109028623A (en) * | 2018-08-02 | 2018-12-18 | 王洁 | A kind of shallow layer geothermal energy underground buried tube system structure and application method |
| CN109028623B (en) * | 2018-08-02 | 2020-06-30 | 北京北控恒有源科技发展有限公司 | Shallow geothermal energy underground pipe laying system structure and using method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150929 Address after: Building No. 288 Hangzhou Conba Zhejiang province 310051 city of Binjiang District Jiangnan Road, room 1 1202-1 Patentee after: ZHEJIANG LUTE ENERGY TECHNOLOGY Co.,Ltd. Address before: Wujin District 213000 of Jiangsu province Changzhou City Yaoguan Town Village No. 101 South Lai. Patentee before: Wu Xueliang |
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| CX01 | Expiry of patent term |
Granted publication date: 20130925 |
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| CX01 | Expiry of patent term |