CN211176992U - Air energy ground source heat pump concurrent heating system - Google Patents
Air energy ground source heat pump concurrent heating system Download PDFInfo
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- CN211176992U CN211176992U CN201921625607.3U CN201921625607U CN211176992U CN 211176992 U CN211176992 U CN 211176992U CN 201921625607 U CN201921625607 U CN 201921625607U CN 211176992 U CN211176992 U CN 211176992U
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- heat pump
- buried pipe
- source heat
- ground source
- heating
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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 relates to an air energy ground source heat pump concurrent heating system, which comprises an air energy heat pump host, a ground source heat pump host and a buried pipe which are connected in parallel in sequence; at least 2 ground pipe soil heat exchangers are connected in parallel on the ground pipes; the air source heat pump host, the ground source heat pump host and the buried pipe are connected through circulating pipes. The utility model discloses need not to reach the effect of "heat balance" of resuming the underground temperature field through refrigeration function, overcome traditional earth source heat pump system and must possess the defect that refrigerating system supplyed heat to soil simultaneously.
Description
Technical Field
The utility model mainly relates to an air can earth source heat pump concurrent heating system belongs to the heating and ventilation air conditioner field. The air energy heat pump not only realizes direct heating, but also is used as heat source equipment to supplement heat to soil through the buried pipe in non-heating seasons; the buried pipe system is not only a heat source of the ground source heat pump, but also an energy accumulator of the air energy heat supplementing system.
Background
The ground source heat pump heating system generally can ensure the cold and heat balance of the underground temperature field only by cold and heat supply so as to maintain long-term reliable and stable operation, so that a fan coil and other refrigeration terminals are required to be installed at the same time, and the investment of the refrigeration terminal system is huge. Some projects such as civil houses have high centralized cooling cost, and the civil houses generally use floor heating as a main part and are not provided with fan coils, so that forced popularization of refrigeration fan coil control needs additional investment at the tail end, and the difficulty is high, thereby being not beneficial to popularization and application of ground source heat pump heating systems. Heating is 'just needed' for common people, refrigeration of civil houses is generally solved through household air conditioners, so that a ground source heat pump system only provides heating for the civil houses, the problem of underground temperature field heat balance exists, and popularization and application are restricted. The temperature of shallow soil in severe cold regions is generally very low, for example, about 5 to 7 ℃ in Xinjiang in northeast, and heating by a ground source heat pump is difficult. If the air energy ground source heat pump is adopted for heat supplement, the heating problem of the ground source heat pump through refrigeration and the problem that the ground source heat pump realizes single heating in the region with low temperature in the severe cold region can be well solved, and the bottleneck problems that the ground source heat pump only supplies heat and the ground source heat pump is popularized and applied in the severe cold region in a heat balance mode are realized.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves: an air energy ground source heat pump concurrent heating system only meets the heating load requirement, utilizes 2 types of equipment of air energy and ground source heat pump for heating, and does not need to consider refrigeration to meet the soil heat balance requirement. The winter air energy heat pump is heating equipment in winter, can further save the investment of a buried pipe and ground source heat pump host equipment, and is heat storage equipment for soil in the buried pipe in transition seasons; the buried pipe system is not only a heat source of the ground source heat pump, but also a heat accumulator for supplying heat to soil by the air source heat pump in transition seasons.
The technical scheme of the utility model:
an air energy ground source heat pump concurrent heating system comprises an air energy heat pump host, a ground source heat pump host and a buried pipe which are connected in parallel in sequence; at least 2 ground pipe soil heat exchangers are connected in parallel on the ground pipes; the air source heat pump host, the ground source heat pump host and the buried pipe are connected through circulating pipes.
Preferably, the system also comprises a heating circulating pump, a buried pipe circulating pump, a first electric three-way valve, a second electric three-way valve, a heating water return point, a heating water supply point, a buried pipe water return point and a buried pipe water supply point;
the first electric three-way valve and the second electric three-way valve respectively comprise three ports, namely a port a, a port b and a port c;
the heating water return point is connected with a heating circulating pump; the heating circulating pump is respectively connected with the air energy heat pump host and the port a of the first electric three-way valve, and the port c of the first electric three-way valve is connected with the heating water inlet of the ground source heat pump host;
the heating water supply point is respectively connected with the heating water outlets of the air energy heat pump host and the ground source heat pump host;
one end of the water return point of the buried pipe is connected with a buried pipe circulating pump, the other end of the water return point of the buried pipe is connected with one end of a water outlet of the buried pipe, the other end of the buried pipe circulating pump is connected with an a port of a second electric three-way valve, and a c port of the second electric three-way valve is connected with a heat source water inlet of a ground source heat pump host; the port b of the second electric three-way valve is connected with the port b of the first electric three-way valve;
one end of the water supply point of the buried pipe is connected with one end of the water inlet of the buried pipe, and the other end of the water supply point of the buried pipe is connected with the water outlet of the heat source of the ground source heat pump host.
Preferably, the heating system further comprises a first valve, the heating water supply point is connected with one end of the first valve, and the other end of the first valve is respectively connected with the heating water outlets of the air energy heat pump host and the ground source heat pump host.
Preferably, the heating system further comprises a second valve, and the second valve is arranged between the heat source water outlet of the ground source heat pump host and the heating water outlet of the ground source heat pump host.
Preferably, the air energy heat pump host, the ground source heat pump host, the buried pipe, the heating circulating pump, the buried pipe circulating pump, the first electric three-way valve, the second electric three-way valve, and the first valve and the second valve are connected through circulating pipes.
The utility model provides heating in winter by using 2 sets of heat sources of the air energy heat pump and the ground source heat pump in the heating season; in spring, summer and autumn, the air-source heat pump is adopted to absorb a low-grade heat source from high-temperature air, low-temperature hot water is produced to store heat to soil through the buried pipe heat exchanger, the temperature of underground soil is improved and restored, the efficient operation of the ground source heat pump in winter is guaranteed, the refrigeration function of the ground source heat pump is not needed, and the purpose of maintaining the heat balance of the underground temperature is achieved.
The utility model has the advantages that:
the function of recovering the heat balance of the underground temperature field is achieved without a refrigeration function, and the defect that the traditional ground source heat pump system must be provided with a refrigeration system to supplement heat to the soil is overcome. The air energy heat pump is heating equipment in winter, can further save the investment of a buried pipe and ground source heat pump host equipment, and is heat storage equipment for soil in the buried pipe in excessive seasons; the buried pipe system not only is the heat source of ground source heat pump, and the heat accumulator that the air energy heat pump was supplemented heat to soil in excessive season has also been simultaneously practiced thrift working condition buried pipe in winter and ground source heat pump's investment etc. has good economic technology advantage to be the utility model discloses a core innovation point, specific advantage includes following several aspects:
1) the geothermal balance of the ground source heat pump can be realized without combined supply of cold and heat, only a single heating function is needed, the system configuration saves investment by about 50% compared with a ground source heat pump system taking account of cold and heat, and the air energy heat pump bears part of heating load, thereby further greatly reducing the equipment investment of a heating buried pipe and a ground source heat pump host machine and reducing the investment of the buried pipe for occupying area, distributing power, a machine room and a fan coil refrigerating terminal.
2) The function of supplementing heat to soil is realized by utilizing the air energy heat pump in spring, summer and autumn, and because the air energy heat pump equipment simultaneously realizes heating in winter, the investment of the heat supplementing equipment is not increased.
3) The air energy heat pump can not only realize heat supplement to soil in non-heating seasons, but also be used as heat source equipment for heating in winter, thereby greatly saving the investment of a ground source heat pump host and a buried pipe system.
4) The buried pipe heat exchange system is used as a heating heat source of the ground source heat pump in winter, can be used as a heat accumulator of the air energy heat pump heat compensation equipment in non-heating seasons, hot water with the temperature of about 25 ℃ generated by the operation of the air energy heat pump in high-temperature seasons is used for compensating heat for the soil of the buried pipe of the ground source heat pump, the energy efficiency is high, and the purpose of compensating heat is achieved by consuming very little electric energy. The hot water is produced in the high-temperature environment temperature time period, the evaporation temperature of the air energy heat pump is further improved, the condensation temperature is further reduced by low-temperature hot water heat compensation, and the air energy heat pump is extremely high in energy efficiency and power-saving. If in the time period of valley electricity, the cost of heat pump heat compensation can be greatly reduced, the compressor can not be started in summer with high temperature, the surface air cooler is adopted to directly utilize hot air to compensate heat for soil, and the cost is low.
5) Because the heat can be supplemented to the soil through the air in the excessive season, the ground source heat pump system can efficiently and stably operate in winter.
Drawings
Fig. 1 is a system configuration diagram of the present invention.
Fig. 2 is the heating heat exchange principle and the process flow chart of the air source heat pump system of the utility model.
Fig. 3 is the heat supplement principle and the process flow chart of the air energy in the season.
In the attached drawings, 1, an air energy heat pump host; 2. a ground source heat pump host; 3-1, a heating circulating pump; 3-2, a buried pipe circulating pump; 4-1, a first electric three-way valve; 4-2, a second electric three-way valve; 6. A buried pipe soil heat exchanger; 7. a circulation pipe; 8. a buried pipe;
v1: a first valve; v2: a second valve;
a, heating water return points; b, heating water supply points; c, a buried pipe water return point; d, buried pipe water supply points.
Detailed Description
As shown in fig. 1, the utility model is composed of 2 parts: heating heat exchange system and ground pipe laying circulation heat accumulation system.
The heating heat exchange system is mainly characterized in that a heating water return point A is connected with a heating circulating pump 3-1 through a circulating pipe 7, the heating circulating pump 3-1 is respectively connected with an air energy heat pump host 1 and a ground source heat pump host 2 through the circulating pipe 7, a heating water inlet pipe of the ground source heat pump host 1 is connected with a first electric three-way valve 4-1, an a port of the first electric three-way valve 4-1 is connected to a water outlet of the heating circulating pump 3-1, a c port is connected with a heating water inlet of the buried pipe host 2, and a b port is connected with a b port of a second electric three-way valve 4-2. The water outlet of the air energy heat pump 1 and the heating water outlet of the ground source heat pump 2 are parallelly combined through a circulating pipe 7 and then are connected to a heating water supply point B through a first valve V1. A ground heat exchanger 6 of a ground pipe is connected in parallel on a ground pipe 8, a water return point C of the ground pipe is connected with a water inlet of a ground pipe circulating pump 3-2, a second electric three-way valve 4-2 is connected between a heat source water inlet of the ground source heat pump host 2 and a water outlet of the ground pipe circulating pump 3-2, wherein an a port of the second electric three-way valve 4-2 is connected with a water outlet of the ground pipe circulating pump 3-2, a b port is connected with a b port of the electric three-way valve 4-1, and a C port is connected with a heat source water inlet of the ground source heat pump host 2. A second valve V2 is connected between the heat source water outlet of the ground source heat pump 2 and the heating water outlet of the ground source heat pump 2. The heat source water outlet of the ground source heat pump 2 is connected with the water supply point D of the buried pipe through the buried pipe 8.
The heating and heat exchange principle and the process flow of the air energy ground source heat pump system are shown in figure 2:
in the heating process flow, a first valve V1 is opened, and a second valve V2 is closed; the low-temperature return water for heating returns from a heating return water point A to a heating circulating pump 3-1, and under the pressurization of the heating circulating pump 3-1, the low-temperature return water for heating enters the air energy heat pump host 1 and the ground source heat pump host 2 through a circulating pipe 7 respectively (at the moment, an opening a and an opening c of a first electric three-way valve 4-1 are communicated, and an opening B is closed), and then the hot water for heating at about 55 ℃ enters a heating water supply pipe B to be heated to the building through the circulating pipe 7 and a first valve V1, so that the heating circulation is completed. Meanwhile, high-temperature cold water of the ground heat exchanger 6 returns to the ground circulating pump 3-2 through the ground return point C, under the pressurization of the ground circulating pump 3-2, the high-temperature cold water enters the ground heat pump host 2 through the circulating pipe 7 from the ground return point C under the pressurization of the ground heat pump host 2 (at the moment, the port a and the port C of the second electric three-way valve 4-2 are communicated, and the port b is closed) through the circulating pipe 7, the absorbed low-temperature cold water returns to the ground pipe 8 through the circulating pipe 7 and enters the ground water supply point D to be sent into the ground heat exchanger 6 to complete the heat absorption heat exchange process with the soil, and the heat extraction and heat exchange cycle of the ground pipe is completed.
The principle and process flow description of air energy seasonal heat compensation are shown in figure 3:
in the air energy transition season heat supplementing process, the first valve V1 is closed, and the second valve V2 is opened; the low-temperature backwater of the buried pipe returns to a heating circulating pump 3-1 from a buried pipe backwater point C, under the pressurization of the heating circulating pump 3-1, the low-temperature cold water backwater of the buried pipe enters into an air energy heat pump host 1 through a circulating pipe 7 and passes through a first electric three-way valve 4-1 and a second electric three-way valve 4-2 (an a port and a b port of the second electric three-way valve are communicated, and a C port is closed) to be heated to 25-30 ℃, then flows back to the buried pipe soil heat exchanger 6 through a second valve V2 in an open state, and simultaneously returns to the high-temperature backwater of the buried pipe soil heat exchanger 6 to return to the buried pipe circulating pump 3-2 through the buried pipe backwater point C, under the pressurization of the buried pipe circulating pump 3-2, enters into a ground source heat pump host 2 through the circulating pipe 7 (at the moment, the a port and the C port of the second electric three-way valve 4-2 are communicated, and the, and then entering a water supply point D of the buried pipe, absorbing heat in the soil heat exchanger 6 of the buried pipe, and finishing heat storage and exchange circulation of the buried pipe.
The above-mentioned examples are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to carry out the same, and the scope of the present invention should not be limited by the examples, i.e. the equivalent changes or modifications made in the spirit of the present invention are still within the scope of the present invention.
Claims (5)
1. An air energy ground source heat pump concurrent heating system is characterized by comprising an air energy heat pump host (1), a ground source heat pump host (2) and a buried pipe (8) which are connected in parallel in sequence; at least 2 ground buried pipe soil heat exchangers (6) are connected in parallel on the ground buried pipe (8); the air energy heat pump host (1), the ground source heat pump host (2) and the buried pipe (8) are connected through a circulating pipe (7).
2. The air energy ground source heat pump heat supplementing heating system according to claim 1, further comprising a heating circulating pump (3-1), a buried pipe circulating pump (3-2), a first electric three-way valve (4-1), a second electric three-way valve (4-2), a heating water return point (A), a heating water supply point (B), a buried pipe water return point (C) and a buried pipe water supply point (D);
the first electric three-way valve (4-1) and the second electric three-way valve (4-2) respectively comprise three ports, namely a port a, a port b and a port c;
the heating water return point (A) is connected with a heating circulating pump (3-1); the heating circulating pump (3-1) is respectively connected with the air energy heat pump host (1) and the port a of the first electric three-way valve (4-1), and the port c of the first electric three-way valve (4-1) is connected with the heating water inlet of the ground source heat pump host (2);
the heating water supply point (B) is respectively connected with the heating water outlets of the air energy heat pump host (1) and the ground source heat pump host (2);
one end of the buried pipe water return point (C) is connected with a buried pipe circulating pump (3-2), the other end of the buried pipe water return point (C) is connected with one end of a water outlet of a buried pipe (8), the other end of the buried pipe circulating pump (3-2) is connected with an a port of a second electric three-way valve (4-2), and a C port of the second electric three-way valve (4-2) is connected with a heat source water inlet of the ground source heat pump host (2); the port b of the second electric three-way valve (4-2) is connected with the port b of the first electric three-way valve (4-1);
one end of the buried pipe water supply point (D) is connected with one end of a water inlet of the buried pipe (8), and the other end of the buried pipe water supply point is connected with a heat source water outlet of the ground source heat pump host (2).
3. The air energy ground source heat pump concurrent heating system according to claim 2, further comprising a first valve (V1), wherein the heating water supply point (B) is connected to one end of the first valve (V1), and the other end of the first valve (V1) is connected to the heating water outlet of the air energy heat pump host (1) and the ground source heat pump host (2), respectively.
4. The air energy ground source heat pump concurrent heating system as claimed in claim 3, further comprising a second valve (V2), wherein the second valve (V2) is disposed between the heat source water outlet of the ground source heat pump host (2) and the heating water outlet of the ground source heat pump host (2).
5. The air energy ground source heat pump concurrent heating system according to claim 4, wherein the air energy heat pump host (1), the ground source heat pump host (2), the buried pipe (8), the heating circulating pump (3-1), the buried pipe circulating pump (3-2), the first electric three-way valve (4-1), the second electric three-way valve (4-2), the first valve (V1) and the second valve (V2) are connected through a circulating pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921625607.3U CN211176992U (en) | 2019-09-27 | 2019-09-27 | Air energy ground source heat pump concurrent heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921625607.3U CN211176992U (en) | 2019-09-27 | 2019-09-27 | Air energy ground source heat pump concurrent heating system |
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| Publication Number | Publication Date |
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| CN211176992U true CN211176992U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921625607.3U Expired - Fee Related CN211176992U (en) | 2019-09-27 | 2019-09-27 | Air energy ground source heat pump concurrent heating system |
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| CN (1) | CN211176992U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536706A (en) * | 2020-05-12 | 2020-08-14 | 河北省建筑科学研究院有限公司 | Soil temperature recovery device and method |
| CN112393312A (en) * | 2020-12-18 | 2021-02-23 | 冀中能源井陉矿业集团大有机电有限公司 | Season-crossing energy storage heating system using renewable energy |
-
2019
- 2019-09-27 CN CN201921625607.3U patent/CN211176992U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536706A (en) * | 2020-05-12 | 2020-08-14 | 河北省建筑科学研究院有限公司 | Soil temperature recovery device and method |
| CN112393312A (en) * | 2020-12-18 | 2021-02-23 | 冀中能源井陉矿业集团大有机电有限公司 | Season-crossing energy storage heating system using renewable energy |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 |