CN112066499B - A hot and cold water unit with complementary and composite utilization of air source and multiple energy sources and its working method - Google Patents
A hot and cold water unit with complementary and composite utilization of air source and multiple energy sources and its working method Download PDFInfo
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- CN112066499B CN112066499B CN202011062977.8A CN202011062977A CN112066499B CN 112066499 B CN112066499 B CN 112066499B CN 202011062977 A CN202011062977 A CN 202011062977A CN 112066499 B CN112066499 B CN 112066499B
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- heat exchanger
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- air source
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 230000000295 complement effect Effects 0.000 title claims abstract description 102
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000005192 partition Methods 0.000 claims abstract description 4
- 239000003507 refrigerant Substances 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000005057 refrigeration Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000004781 supercooling Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 239000002609 medium Substances 0.000 description 27
- 238000005265 energy consumption Methods 0.000 description 4
- 239000012736 aqueous medium Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
本发明提供了一种空气源与多能源互补复合利用的冷热水机组，壳体内设置有隔板，将壳体内空间分为机组上部空间和机组下部空间；机组上部空间中自左到右设置有空气进口、空气源换热盘管、风机及空气出口；机组下部空间中设置有压缩机，互补能源换热器一、互补能源换热器二及使用侧换热器；同时，本发明还提供了上述空气源与多能源互补复合利用的冷热水机组的工作方法，本发明中，利用方便适宜的多种能源，以其低品位水的形式，与稳定的空气源互补复合，直接参与机组系统运行，改善空气源热泵的工况，使机组不但在通常的气候条件下具有节能胜，而且在夏季里高热天气或是冬季里高严寒的低温环境也表现出它的工作稳定性和节能性。
The present invention provides a hot and cold water unit with complementary and composite utilization of air source and multiple energy sources. A partition is arranged in the shell to divide the space in the shell into the upper space of the unit and the lower space of the unit; an air inlet, an air source heat exchange coil, a fan and an air outlet are arranged from left to right in the upper space of the unit; a compressor, a complementary energy heat exchanger 1, a complementary energy heat exchanger 2 and a user-side heat exchanger are arranged in the lower space of the unit; at the same time, the present invention also provides a working method of the hot and cold water unit with complementary and composite utilization of air source and multiple energy sources. In the present invention, convenient and suitable multiple energy sources are utilized in the form of low-grade water to complement and composite with a stable air source, directly participate in the operation of the unit system, improve the working conditions of the air source heat pump, and make the unit not only energy-saving under normal climatic conditions, but also show its working stability and energy-saving performance in the hot weather in summer or the low temperature environment in winter.
Description
Technical Field
The invention relates to the technical field of cold and warm air conditioners, in particular to a cold and hot water unit with complementary and composite utilization of air sources and multiple energy sources and a working method thereof.
Background
The development and utilization of renewable clean energy become an important way for solving the problems of world energy and environment, and along with the improvement of the living standard of people in China, the proportion of building cold-warm energy consumption in the total energy consumption of society is gradually increased, and the development and utilization of new energy for solving the problem of building energy consumption is urgent.
At present, a mode of using cold water and hot water as heat transfer media to cool and heat a building is the most common application form, and unit equipment for providing the cold water and the hot water currently takes an air source heat pump product as a main stream. With the iterative upgrade of the technology, especially the breakthrough of the ultralow temperature technology application of the air source heat pump, the air source heat pump product has better application prospect. However, the utilization of air energy cannot avoid the high-heat weather in summer and the severe cold low-temperature environment in winter, and in the environments, the operation of the air source heat pump has the defects of low energy efficiency and high energy consumption.
In the application of renewable new energy, solar energy is taken as basic energy, and has the inexhaustible advantages, but also has the defects of intermittence and instability, so that single solar energy cannot be applied to the actual heating process and needs to be complementarily applied with other stable energy.
The geothermal energy has great development potential, the applied product is a water ground source heat pump, and the underground constant ground source temperature is utilized throughout the year, and the system has the characteristics of great energy conservation in refrigeration and heating, but underground collection of the ground source energy is not separated, and the existing collection mode has the defect of high system cost in the application of the geothermal energy. Such as river and lake water sources, sewage sources and industrial heat recovery, the grade of the energy sources is low, and the heat pump is required to be used for lifting, so that the cost is high.
Disclosure of Invention
The invention provides a cold and hot water unit with complementary and composite utilization of air sources and multiple energy sources, which utilizes a plurality of clean low-grade energy source composite air source heat pump systems to directly participate in the operation of a cold supply and heating system, improves the operation condition of the air source heat pump systems and improves the energy efficiency, and achieves the purposes of saving energy and realizing all-weather high-quality cold supply and heating by radiating cold and heat through terminal equipment while the unit generates cold and hot water to be supplied to a building.
The aim of the invention is realized by the following technical scheme:
A cold and hot water unit with complementary and composite utilization of air sources and multiple energy sources comprises a shell, and is characterized in that a partition plate is arranged in the shell to divide a space in the shell into an upper space and a lower space of the unit, wherein an air inlet, an air source heat exchange coil, a fan and an air outlet are arranged in the upper space of the unit from left to right;
the shell is provided with a complementary energy water inlet and a complementary energy water outlet, the complementary energy water inlet is connected with a pipeline to the complementary energy heat exchanger I and the complementary energy heat exchanger II, and the complementary energy water outlet is connected with the pipeline to the complementary energy water outlet;
A unit cold and hot water outlet and a unit cold and hot water inlet are formed in the shell, a pipeline is connected from the unit cold and hot water inlet to the using side heat exchanger, and a pipeline is connected from the using side heat exchanger to the unit cold and hot water outlet;
a four-way valve is connected in a refrigerant pipeline of the compressor, a first complementary energy heat exchanger, an air source heat exchange coil, a second complementary energy heat exchanger and a use side heat exchanger are sequentially connected from the four-way valve, the four-way valve is connected from the use side heat exchanger to form a refrigerant working medium circulation loop, and a throttling expansion valve is arranged in a pipeline between the second complementary energy heat exchanger and the use side heat exchanger.
Further, the fan is an axial flow fan.
Further, the air source heat exchanger coil is in a fin-tube type.
Furthermore, the complementary energy water inlet and the complementary energy water outlet are respectively arranged at one position, and the water medium pipelines of the first complementary energy heat exchanger and the second complementary energy heat exchanger are connected in parallel.
Meanwhile, the invention also provides a working method of the cold and hot water unit with complementary and composite utilization of the air source and the multiple energy sources, which comprises the following steps:
When in refrigeration use, the refrigerant working medium compressed by the compressor is high-temperature high-pressure gas, enters one side of the refrigerant working medium of the first complementary energy heat exchanger through the four-way valve, exchanges heat with complementary energy water at the other side, reduces the temperature, then enters the upper end of the air source heat exchange coil, exchanges heat with the air source pulled by the fan at the air source heat exchange coil, is cooled and condensed again to form a high-pressure low-temperature liquid state working medium, enters one side of the refrigerant working medium of the second complementary energy heat exchanger, exchanges heat with complementary energy water at the other side, realizes supercooling degree, enters one side of the refrigerant working medium of the second complementary energy heat exchanger into the refrigerant working medium of the using side heat exchanger through the throttling expansion valve, exchanges heat with an aqueous medium entering through the cold and hot water inlet of the unit, and the low-temperature cold water output by the cold and hot water outlet of the unit is input into heat dissipation equipment at the tail end of a building, realizes refrigeration;
When the four-way valve is used for heating, the high-temperature high-pressure gaseous refrigerant working medium entering the heat exchanger at the use side releases heat through the switching of the four-way valve, the other side is heated by the water medium entering from the cold and hot water inlet of the unit and the cold and hot water outlet of the unit, and the water medium is used for heating buildings or living hot water for hot water; meanwhile, the refrigerant working medium giving off heat is condensed into a high-pressure low-temperature liquid state, enters the second complementary energy heat exchanger through the throttling expansion valve, absorbs heat of the complementary energy water at the other side, rises in temperature, enters the lower end of the air source heat exchange coil, continues to evaporate, and enters the first complementary energy heat exchanger after heat exchange and heat absorption of the air source drawn by the fan and the air source heat exchange coil, the refrigerant working medium becomes low-temperature low-pressure gas, absorbs heat of the complementary energy water at the other side, and after rising in temperature and enthalpy, is sucked into the compressor through the four-way valve, works through the compressor, compresses into high-temperature high-pressure gas, and then is conveyed to the upper end of the heat exchanger at the use side through the four-way valve, continues to give off heat, and the whole cycle is completed.
The invention has the beneficial effects that:
In the refrigeration using and running process, the complementary energy water in the first complementary energy heat exchanger and the second complementary energy heat exchanger can be groundwater, river lake water, various energy low-grade cold water such as cooling water and the like through direct evaporation of a cooling tower, and the complementary energy water is a low-grade water source with higher temperature than the environment, and can be shallow surface water, river lake water, and complementary energy water formed by various energy sources such as solar energy heat collecting and water exchanging.
The air source heat pump unit has the advantages that various convenient and suitable energy sources are utilized, the low-grade water is complementarily compounded with a stable air source, the air source heat pump unit directly participates in the operation of a unit system, the working condition of the air source heat pump is improved, the unit not only has energy conservation effect under the common climatic conditions, but also has the working stability and energy conservation effect under the high-heat air in summer or the high-cold low-temperature environment in winter, the four-way valve is used for switching the working medium flowing direction of the preparation, the conversion of the refrigerating and heating working conditions is realized, the cold and hot water is generated, the unit can reliably and stably operate under various environments, and the high-efficiency energy-saving cooling and heating purposes of a building are realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
In the figure, a shell, a2 air source heat exchange coil, a3 fan, a 4 air inlet, a 5 air outlet, a 6 compressor, a 7 using side heat exchanger, a 8 unit cold and hot water outlet, a 9 unit cold and hot water inlet, a10 throttle expansion valve, a11 complementary energy source water inlet, a 12 complementary energy source water outlet, a13 four-way valve, a 14, a partition plate, a 15 complementary energy source heat exchanger I, a 16 complementary energy source heat exchanger II, an A unit upper space, a B unit lower space.
Detailed Description
The technical scheme of the invention is further explained by the specific embodiments.
Example 1
The cold and hot water unit with complementary and composite utilization of air source and multiple energy sources comprises a shell 1, and is characterized in that,
The air source heat exchanger coil 2 is a fin pipeline type fin for exchanging heat with air, and a refrigerant working medium flows in the pipeline, the fan 3 is an axial flow fan, and the lower space is provided with a compressor 6, a first complementary energy heat exchanger 15, a second complementary energy heat exchanger 16 and a use side heat exchanger 7;
The first complementary energy heat exchanger 15, the second complementary energy heat exchanger 16 and the use side heat exchanger 7 are in the form of heat exchange between an aqueous medium on one side and a refrigerant working medium on the other side, wherein the aqueous medium on one side of the use side heat exchanger 7 is cold water and hot water finally generated by a unit, and the cold water and the hot water are communicated with the indoor tail end for application;
The shell is provided with a complementary energy water inlet 11 and a complementary energy water outlet 12, a pipeline is connected from the complementary energy water inlet 11 to the first complementary energy heat exchanger 15 and the second complementary energy heat exchanger 16, and the pipeline is connected from the first complementary energy heat exchanger 15 and the second complementary energy heat exchanger 16 to the complementary energy water outlet 12, the complementary energy water inlet 11 is arranged at a position lower than the complementary energy water outlet 12, the complementary energy water inlet 11 and the complementary energy water outlet 12 are respectively arranged at one position, and the water medium pipelines of the first complementary energy heat exchanger 15 and the second complementary energy heat exchanger 16 are connected in parallel;
The shell is provided with a unit cold and hot water outlet 8 and a unit cold and hot water inlet 9, a pipeline is connected from the unit cold and hot water inlet 9 to the using side heat exchanger 7, and the pipeline is connected from the using side heat exchanger 7 to the unit cold and hot water outlet 8, wherein the unit cold and hot water outlet 8 is arranged at a position higher than the unit cold and hot water inlet 9;
A four-way valve 13 is connected in a refrigerant pipeline of the compressor 6, a first complementary energy heat exchanger 15, an air source heat exchange coil 2, a second complementary energy heat exchanger 16 and a use side heat exchanger 7 are sequentially connected from the four-way valve 13, the four-way valve 13 is connected from the use side heat exchanger 7 to form a refrigerant working medium circulation loop, and a throttling expansion valve 10 is arranged in a pipeline between the second complementary energy heat exchanger 16 and the use side heat exchanger 7.
Example 2
The working method of the cold and hot water unit with complementary and composite utilization of the air source and the multiple energy sources in the embodiment 1 comprises the following steps:
When in refrigeration use, the refrigerant working medium compressed by the compressor 6 is high-temperature high-pressure gas, enters one side of the refrigerant working medium of the first complementary energy heat exchanger 15 through the four-way valve 13, exchanges heat with complementary energy water at the other side, reduces the temperature, then enters the upper end of the air source heat exchange coil 2, exchanges heat with the air source pulled by the fan 3 through the air source heat exchange coil 2, is cooled and condensed again to form a high-pressure low-temperature liquid state working medium, enters one side of the refrigerant working medium of the second complementary energy heat exchanger 16, exchanges heat with complementary energy water at the other side, realizes supercooling degree, enters one side of the refrigerant working medium of the second complementary energy heat exchanger 7 through the throttle expansion valve 10, exchanges heat with water medium entering through the cold water inlet 9 of the unit, and enters low-temperature cold water output by the cold water outlet 8 of the unit to the building terminal heat dissipation equipment, and realizes the refrigeration purpose;
When the air conditioner is used for heating, the high-temperature high-pressure gaseous refrigerant working medium in the heat exchanger 7 at the use side is switched by the four-way valve 13 to release heat, the other side is heated by the water medium discharged from the cold water inlet 9 of the unit, the cold water outlet 8 of the unit forms hot water for heating or living hot water of a building, meanwhile, the refrigerant working medium which releases heat is condensed into a high-temperature low-temperature liquid state, enters the heat exchanger II 16 at the complementary energy source through the throttling expansion valve 10, absorbs the heat of the water at the complementary energy source at the other side, has the temperature increased, then enters the lower end of the heat exchange coil 2 at the air source, continues to evaporate, and enters the heat exchanger I15 at the complementary energy source after heat exchange and heat absorption of the air source pulled by the fan 3, absorbs the heat of the water at the complementary energy source at the other side, has the enthalpy increased through the four-way valve 13, is sucked into the compressor 6, is acted through the compressor 6, compressed into the high-temperature high-pressure gas, and then is conveyed to the upper end of the heat exchanger 7 at the use side through the four-way valve, and the whole circulation is continued to release heat.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062977.8A CN112066499B (en) | 2020-09-30 | 2020-09-30 | A hot and cold water unit with complementary and composite utilization of air source and multiple energy sources and its working method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062977.8A CN112066499B (en) | 2020-09-30 | 2020-09-30 | A hot and cold water unit with complementary and composite utilization of air source and multiple energy sources and its working method |
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| Publication Number | Publication Date |
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| CN112066499A CN112066499A (en) | 2020-12-11 |
| CN112066499B true CN112066499B (en) | 2025-03-25 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819569A (en) * | 2015-05-12 | 2015-08-05 | 广东今泉节能设备有限公司 | Air source heat pump heating type water heater device |
| CN105258389A (en) * | 2015-11-24 | 2016-01-20 | 广东申菱环境系统股份有限公司 | Compensation type dual-source heat pump cold and hot water unit |
| CN212227304U (en) * | 2020-09-30 | 2020-12-25 | 艾科尔新能源科技有限公司 | Cold and hot water unit with air source and multi-energy source complementary and compound utilization |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040049037A (en) * | 2002-12-03 | 2004-06-11 | 주식회사 센추리 | Heat pump system suppliable hot water instantaneously and operating method thereof |
| JP5042262B2 (en) * | 2009-03-31 | 2012-10-03 | 三菱電機株式会社 | Air conditioning and hot water supply complex system |
| CN105333480B (en) * | 2015-11-30 | 2020-01-21 | 佛山欧思丹热能科技有限公司 | Multi-energy composite heating system |
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- 2020-09-30 CN CN202011062977.8A patent/CN112066499B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819569A (en) * | 2015-05-12 | 2015-08-05 | 广东今泉节能设备有限公司 | Air source heat pump heating type water heater device |
| CN105258389A (en) * | 2015-11-24 | 2016-01-20 | 广东申菱环境系统股份有限公司 | Compensation type dual-source heat pump cold and hot water unit |
| CN212227304U (en) * | 2020-09-30 | 2020-12-25 | 艾科尔新能源科技有限公司 | Cold and hot water unit with air source and multi-energy source complementary and compound utilization |
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