CN210718214U - Ground ring water source heat pump system without pumping underground water - Google Patents
Ground ring water source heat pump system without pumping underground water Download PDFInfo
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- CN210718214U CN210718214U CN201921726273.9U CN201921726273U CN210718214U CN 210718214 U CN210718214 U CN 210718214U CN 201921726273 U CN201921726273 U CN 201921726273U CN 210718214 U CN210718214 U CN 210718214U
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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
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- 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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Abstract
The utility model relates to a ground ring water source heat pump system of not extracting groundwater comprises heat transfer well, ground buried pipe group, heat pump host computer, the heat transfer well is the deep well that passes the underground aquifer, reachs the underground basement stratum, ground buried pipe group comprises a heat transfer well wet return in the middle, four delivery pipes on every side, connects four delivery pipes through special-shaped five-way at heat transfer well wet return bottom, the heat pump inlet tube connects in parallel four delivery pipes of ground buried pipe group, and sets up the pipeline circulating pump on the heat pump inlet tube; the four openings of the special-shaped five-way are respectively connected with the elbows at the tail ends of the four water supply pipes; the special-shaped five-way pipe is connected with the water supply and return pipe in a hot melting mode. The utility model discloses adopt and need not extract groundwater and can realize heat transfer purpose, heat exchange efficiency height, simple structure are stable, the unblocked stability of water route circulation, be applicable to the area that groundwater resources is abundant, the basement rock is darker.
Description
Technical Field
The utility model relates to a new forms of energy utilization and building technical field, concretely relates to ground ring water source heat pump system of not extracting groundwater.
Background
With the continuous progress of new energy technology, the heat energy or cold energy of underground aquifers is assisted to regulate the cold and heat supply of buildings through a water source heat pump, and the application is wider and wider. The working principle of the water source heat pump unit is that heat in a building is transferred to a groundwater source in summer; in winter, energy is extracted from a water source with relatively constant temperature, and the water is used as a secondary refrigerant to raise the temperature by utilizing the heat pump principle and then is sent to a building. Usually, the water source heat pump consumes 1kW of energy, and a user can obtain heat or cold with a power of more than 4 kW. The water source heat pump overcomes the defect that the outdoor heat exchanger of the air source heat pump frosts in winter, has high operation reliability and heating efficiency, and is widely applied in China in recent years.
However, as the environmental protection in our country is continuously strengthened, the underground water pumping mode is not approved in many areas, and in practice, the problem that the pumped underground water is not completely recycled does occur. In addition, another usage of the heat pump unit is that a buried pipe mode is adopted, water is used as a medium, and heat or cold in soil of the ground is exchanged to assist the building air conditioning system, but the buried pipe mode has high requirements on the whole field, can be implemented only by large empty land, and is not suitable for cities with large and small amount of soil.
SUMMERY OF THE UTILITY MODEL
To solve the above problems, the utility model provides a ground ring water source heat pump system of not extracting groundwater.
The utility model discloses a ground ring water source heat pump system without pumping groundwater, which comprises a heat exchange well, a buried pipe group and a heat pump host, wherein the heat exchange well is a deep well which passes through an underground aquifer and reaches an underground bedrock layer, and the wall of the well adopts a PVC pipe with a gap opening; the buried pipe group consists of a heat exchange well water return pipe in the middle and four water supply pipes on the periphery, and the bottom of the heat exchange well water return pipe is connected with the four water supply pipes through a special-shaped five-way pipe; the heat pump main machine is connected with a building through a building water inlet pipe and a building water return pipe to form a circulating water path; the heat pump host is connected with the buried pipe group through a heat pump water inlet pipe and a heat pump water return pipe to form another circulating water path; the heat pump water inlet pipe is connected with four water supply pipes of the buried pipe group in parallel, and a pipeline circulating pump is arranged on the heat pump water inlet pipe; the heat pump water return pipe is directly connected with a heat exchange well water return pipe of the buried pipe group; the bottom of the water return pipe of the heat exchange well is directly connected with the special-shaped five-way pipe; the four openings of the special-shaped five-way are respectively connected with the elbows at the tail ends of the four water supply pipes; the special-shaped five-way pipe is connected with the water supply and return pipe in a hot melting mode.
Preferably, the well wall is made of a PVC pipe with the outer diameter of 315mm, the inner diameter of 300mm and the pressure resistance of 1.6MPa, and the pipeline is provided with a plurality of longitudinal slots.
Preferably, the four water supply pipes of the buried pipe group adopt PVC pipes with the external diameter of 63mm and the thickness of 4.7mm and the pressure resistance of 1.6 Mpa.
Preferably, the heat exchange well return water pipe of the buried pipe group adopts a PVC pipe with the outer diameter of 110mm and the thickness of 6.6mm and the pressure resistance of 1.6 Mpa.
Further, the heat exchange well is a single well or a plurality of wells.
Furthermore, when the heat exchange well is a single-hole well, no other heat exchange pipeline or facility exists within the range of 3.6 meters of the peripheral radius of the well wall.
Further, when the heat exchange well is a plurality of wells, the well spacing is more than 20 meters.
The utility model discloses a ground ring water source heat pump system of not extracting groundwater is applicable to and is used for the abundant, darker area of basement rock of groundwater resource.
The utility model has the advantages that:
1. the purpose of exchanging the heat/cold of the underground water can be realized without pumping the underground water: the utility model discloses a single well inner loop mode in water route of return water pipe of four delivery pipes, and the heat transfer well is for reaching the deep well of basement rock stratum deeply, and general degree of depth is about 200 meters, and heat pump set's water route and groundwater have sufficient heat transfer area of contact, consequently need not extract groundwater and can realize the heat transfer purpose, have saved the approval procedure of extraction groundwater.
And the heat exchange efficiency is high: the utility model discloses a supply wet return all to adopt the PVC tubular product that heat exchange efficiency is extremely high, use Beijing as an example, general groundwater constant temperature is 15 ℃, this system ground buries 5 PVC pipes's of nest of tubes heat transfer area be the 193 square meter, can the heat transfer difference in temperature can reach 8 ℃, in summer, can reduce the temperature that buries in the nest of tubes to 25 by 33 ℃, the temperature that gets into heat pump set is 25 ℃, in winter, will bury the temperature that buries in the nest of tubes and rise to 10 by 2 ℃, the temperature that gets into heat pump set is 10 ℃.
The structure is simple and stable: the utility model discloses a ground ring water source heat pump system, well head diameter only are 315mm, and the degree of depth is confirmed according to each local hydrogeological parameter, and the basement stratum can both be reachd about general degree of depth 200 meters, because the well is long and narrow structure, the structure is more stable, and the wall of a well adopts the PVC tubular product of compressive capacity 1.6MPa can satisfy stable condition, and many places set up vertically to crack on the pipe wall, and the groundwater of being convenient for gets into the internal portion of well.
The waterway circulation is smooth and stable: the water supply and return pipe is connected with the bottom of the well by a specially-made special-shaped five-way pipe, and the water inlet pipe of the heat pump is provided with a pipeline circulating pump, so that the circulation smoothness of the heat exchange waterway is ensured.
Drawings
FIG. 1 is the schematic view of the sectional structure of the ground-ring water source heat pump system of the present invention
FIG. 2 is a top view of the bottom structure of the buried pipe set of the present invention
FIG. 3 is a schematic view of the structure of the special-shaped five-way joint of the present invention
The various reference numbers in the figures are listed below:
1. a building; 2. a heat pump host; 3. a building water intake pipe; 4. a building return pipe; 5. a heat pump water inlet pipe; 6. a heat pump water return pipe; 7. a pipeline circulation pump; 8. a heat exchange well; 9. a well wall; 10. a water supply pipe; 11. water return pipe of heat exchange well
10-1, a water supply pipe 1; 10-2, a water supply pipe 2; 10-3, a water supply pipe 3; 10-4, water supply pipe 4
A-special-shaped five-way; b-elbow at end of water supply pipe
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
A ground ring water source heat pump system without pumping underground water is composed of a heat exchange well 8, a buried pipe group and a heat pump host machine 2, wherein the heat exchange well 8 is a deep well penetrating through an underground aquifer 13 and reaching an underground basement layer 14, and a well wall 9 is made of a PVC pipe with a gap and an opening; the underground pipe group consists of a heat exchange well water return pipe 11 in the middle and four water supply pipes 10 on the periphery, and the bottom of the heat exchange well water return pipe 11 is connected with the four water supply pipes 10 through a special-shaped five-way A; the heat pump host 2 is connected with the building 1 through a building water inlet pipe 3 and a building water return pipe 4 to form a circulating water path; the heat pump host 2 is connected with a buried pipe group through a heat pump water inlet pipe 5 and a heat pump water return pipe 6 to form another circulating water path; the heat pump water inlet pipe 5 is connected with four water supply pipes 10 of the buried pipe group in parallel, and a pipeline circulating pump 7 is arranged on the heat pump water inlet pipe 5; the heat pump water return pipe 6 is directly connected with a heat exchange well water return pipe 11 of the buried pipe group; the bottom of the heat exchange well water return pipe 11 is directly connected with a special-shaped five-way valve A; the four openings of the special-shaped five-way pipe A are respectively connected with the elbows B at the tail ends of the four water supply pipes 10; the special-shaped five-way pipe A is connected with the water supply and return pipe in a hot melting mode. The model of the heat pump host is Kelly 61 XW-A2-130A.
The well wall 9 is made of PVC pipes with the outer diameter of 315mm, the inner diameter of 300mm and the pressure resistance of 1.6MPa, and a plurality of longitudinal slots are formed in the pipes. The well wall mainly has the function of preventing objects such as soil, stones and the like from falling into the well to cause the blockage in the well, and the longitudinal slit is formed in the well wall to facilitate the water containing layer to flow into the well.
Four water supply pipes 10 of the buried pipe group adopt PVC pipes with the external diameter of 63mm and the thickness of 4.7mm and the pressure resistance of 1.6 Mpa; the heat exchange well water return pipe 11 of the buried pipe group is made of PVC pipes with the outer diameter of 110mm and the thickness of 6.6mm and the pressure resistance of 1.6 Mpa. Water flows out from heat pump set 2, gets into heat transfer well wet return 11, and the subdividing is 4 ways after reacing the bottom, gets into the heat pump host computer along 4 delivery pipes, and the water pressure of heat transfer well wet return 11 is greater than the delivery pipe, and consequently the diameter ratio delivery pipe of heat transfer well wet return 11 is big, and thickness is thicker than the delivery pipe.
The heat exchange well 8 is a single well, and no other heat exchange pipeline or facility exists within the range of the peripheral radius of the well wall of 3.6 meters, so that the underground heat exchange area of the system can reach 40 square meters, and the heat exchange efficiency is ensured.
However, if the heat exchange well is a plurality of wells, the well spacing needs to be more than 20 meters to prevent the formation of hot and cold communication between the groundwater surrounding the wells in summer and in winter.
Use Beijing as an example, adopt the utility model discloses a not extract ground ring water source heat pump system of groundwater, the heat transfer well degree of depth is 200 meters, and heat pump set is: kaili 61XW-A2-130A, refrigeration condition: the refrigerating capacity is 782.4kW, the input power is 74kW, and the COP (coefficient of performance) of the refrigeration is 10.57; heating working conditions are as follows: the heating capacity is 820.8kW, the input power is 109kW, and the heating COP is 7.53.
The temperature of the underground water in Beijing is generally constant at 15 ℃, 5 PVC pipes are adopted in the buried pipe group of the system, the heat exchange area is 193 square meters, compared with two PVC pipes with the same outer diameter of 110mm, the heat exchange efficiency is improved by 1.6 times, and the heat exchange temperature difference can reach 8 ℃. For example, in summer, after the temperature of the underground pipe group is changed by the system, the temperature of water in the underground pipe group is reduced to 25 ℃ from 33 ℃, and the temperature of water entering the heat pump host from the heat pump water inlet pipe 5 is 25 ℃; in winter, after the temperature of the underground pipe group is changed by the system, the temperature of water in the underground pipe group is increased from 2 ℃ to 10 ℃, and the temperature of water entering the heat pump main machine from the heat pump water inlet pipe 5 is 10 ℃. Through the utility model discloses a low section of thick bamboo of ground ring water source heat pump can be when not extracting groundwater, and the ground heat energy/cold energy of steadily continuously utilizing has saved heat pump set's power consumption.
The ground-ring water source heat pump system provided by the present invention does not pump groundwater is described in detail above. The principles and embodiments of the present invention have been explained herein in terms of specific embodiments, the above description being only intended to facilitate the understanding of the method and its core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (7)
1. A ground ring water source heat pump system without pumping underground water is characterized by comprising a heat exchange well (8), an underground pipe group and a heat pump host (2), wherein the heat exchange well (8) is a deep well penetrating through an underground aquifer (13) and reaching an underground basement layer (14), and a well wall (9) is made of porous pipeline materials; the underground pipe group consists of a heat exchange well water return pipe (11) in the middle and four water supply pipes (10) on the periphery, and the bottom of the heat exchange well water return pipe (11) is connected with the four water supply pipes (10) through a special-shaped five-way pipe (A); the heat pump main machine (2) is connected with the building (1) through a building water inlet pipe (3) and a building water return pipe (4) to form a circulating water path; the heat pump main machine (2) is connected with a heat pump water return pipe (6) through a heat pump water inlet pipe (5) to form a buried pipe group to form another circulating water path; the heat pump water inlet pipe (5) is connected with four water supply pipes (10) of the buried pipe group in parallel, and a pipeline circulating pump (7) is arranged on the heat pump water inlet pipe (5); the heat pump water return pipe (6) is directly connected with a heat exchange well water return pipe (11) of the buried pipe group; the bottom of the heat exchange well water return pipe (11) is directly connected with a special-shaped five-way pipe (A); the four openings of the special-shaped five-way pipe (A) are respectively connected with elbows (B) at the tail ends of the four water supply pipes (10); the special-shaped five-way pipe (A) is connected with the water supply and return pipe in a hot melting mode.
2. The ground-ring water source heat pump system without pumping underground water as claimed in claim 1, wherein the well wall (9) is made of PVC pipe with 315mm outer diameter, 300mm inner diameter and 1.6MPa pressure resistance, and the pipe is provided with a plurality of holes.
3. The ground-ring water source heat pump system without pumping underground water as claimed in claim 1, wherein the four water supply pipes (10) of the buried pipe group are PVC pipes with an external diameter of 63mm and a thickness of 4.7mm and a pressure resistance of 1.6 MPa.
4. The ground-ring water source heat pump system without pumping underground water as claimed in claim 1, wherein the heat exchange well return pipe (11) of the buried pipe group is made of PVC pipe material with the external diameter of 110mm and the thickness of 6.6mm and the pressure resistance of 1.6 MPa.
5. Ground-ring water source heat pump system without pumping ground water according to claim 1, characterized in that the heat exchange well (8) is a single well or a plurality of wells.
6. The ground-ring water source heat pump system without pumping underground water as claimed in claim 5, characterized in that when the heat exchange well (8) is a single well, no other heat exchange pipeline and facility exist within the range of 3.6 meters of the peripheral radius of the well wall.
7. Ground-ring water source heat pump system without ground water extraction according to claim 5, characterized in that the heat exchange wells (8) are multiple wells with well spacing larger than 20 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921726273.9U CN210718214U (en) | 2019-10-15 | 2019-10-15 | Ground ring water source heat pump system without pumping underground water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921726273.9U CN210718214U (en) | 2019-10-15 | 2019-10-15 | Ground ring water source heat pump system without pumping underground water |
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| CN210718214U true CN210718214U (en) | 2020-06-09 |
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| CN201921726273.9U Active CN210718214U (en) | 2019-10-15 | 2019-10-15 | Ground ring water source heat pump system without pumping underground water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383330A (en) * | 2021-12-02 | 2022-04-22 | 安徽建筑大学设计研究总院有限公司 | Three-pipe double-loop ground heat exchanger |
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2019
- 2019-10-15 CN CN201921726273.9U patent/CN210718214U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383330A (en) * | 2021-12-02 | 2022-04-22 | 安徽建筑大学设计研究总院有限公司 | Three-pipe double-loop ground heat exchanger |
| CN114383330B (en) * | 2021-12-02 | 2024-04-05 | 安徽建筑大学设计研究总院有限公司 | Three-pipe double-loop ground buried pipe heat exchanger |
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