CN115218555B - Double-heat-source coupling type heat pump system - Google Patents

Double-heat-source coupling type heat pump system Download PDF

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CN115218555B
CN115218555B CN202211118305.3A CN202211118305A CN115218555B CN 115218555 B CN115218555 B CN 115218555B CN 202211118305 A CN202211118305 A CN 202211118305A CN 115218555 B CN115218555 B CN 115218555B
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main control
control valve
electric main
valve
manual valve
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CN115218555A (en
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肖伟召
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Hebei Kunchang New Energy Technology Co ltd
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Hebei Kunchang New Energy Technology Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/06Heat pumps characterised by the source of low potential heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1006Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1039Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00Hot-water central heating systems
    • F24D3/02Hot-water central heating systems with forced circulation, e.g. by pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00Hot-water central heating systems
    • F24D3/18Hot-water central heating systems using heat pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00Geothermal collectors
    • F24T10/10Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T50/00Geothermal systems 
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The invention discloses a double-heat-source coupled heat pump system, which comprises a plurality of soil-source underground well heat exchangers, a plurality of heat pump host evaporators, a plurality of heat pump host condensers and a plurality of air source heat pump hosts, wherein the water return ends and the water supply ends of the soil-source underground well heat exchangers are respectively connected with an underground well heat exchange water collector and an underground well heat exchange water separator through pipelines, the water inlet end of the underground well heat exchange water collector is connected with a ground-source-side water return subsystem, the water inlet end of the ground-source-side water return subsystem is connected with the water outlet ends of the heat pump host evaporators, the water outlet end of the underground well heat exchange water separator is connected with a ground-source-side water supply subsystem, and the water outlet end of the ground-source-side water supply subsystem is connected with the water inlet ends of the heat pump host evaporators.

Description

Double-heat-source coupling type heat pump system
Technical Field
The invention relates to the technical field of coupled heat pump systems, in particular to a double-heat-source coupled heat pump system.
Background
With the development of economy and the increasing standard of living, heating and cooling air conditioners for public buildings and houses have become a common demand. At present, the energy consumption of building heating and refrigerating air conditioners accounts for about 25% -30% of the total social energy consumption. With the rapid development of the building industry in China, the requirement of building energy conservation is higher and higher. The reduction of energy consumption and energy saving of an air conditioning system are targets which are constantly pursued by building energy-saving and heating ventilation air-conditioning workers, and for most buildings, particularly high-grade hotels and restaurants, large-scale shopping malls, high-grade office buildings, large public buildings and the like, the average power consumption of air conditioners and hot water is about 50% -60% of the energy consumption of the buildings. Therefore, the operation energy saving can not only stay at the oral position, but also is a big matter of the real gold and silver.
On day 7 of 6/2014, the office of the State department has printed "action plan for energy development strategy (2014-2020) at State office [ 2014 ] 31. One of the main tasks of action planning is to optimize the energy structure. Clean energy such as natural gas, nuclear power, renewable energy and the like is actively developed, the specific gravity of coal consumption is reduced, and the continuous optimization of an energy structure is promoted. The renewable energy is developed quickly according to the principle that the output and the local consumption and utilization are combined, and the development is centralized and distributed. By 2020, non-fossil energy accounts for 15% of primary energy consumption. Geothermal energy, biomass energy and ocean energy are actively developed. The method has the advantages of insisting on overall consideration, policies of taking into account local conditions and multi-element development, developing geothermal energy and ocean energy resources in general in order, making development and utilization plans of biomass energy and geothermal energy, actively promoting clean and efficient utilization of geothermal energy, biomass and ocean energy, popularizing biomass energy and geothermal heat supply, and developing demonstration projects of geothermal power generation and ocean energy power generation.
In the 4 th month in 2021, the national energy agency's several opinions on promoting the development and utilization of geothermal energy' pointed out that by 2025, the heating (cooling) area of geothermal energy is increased by 50% compared with 2020; by the year 2035, the area of geothermal energy heating (cooling) is doubled compared with that of 2025. The key tasks are as follows: according to the resource condition and the market demand, the underground water heating is greatly promoted, and the popularization of a geothermal energy + multifunctional complementary heating form is encouraged. The safeguard measures are as follows: the energy departments at all levels compile geothermal energy development and utilization plans and make connection; and (3) encouraging governments at all levels and affiliated departments to leave prices, financial policies and the like which are favorable for geothermal energy development and utilization, making clear the responsibility division of each functional department, and creating a policy environment which is favorable for geothermal energy development and utilization.
The notice about the heating work of renewable energy sources according to local conditions (No. 2021, 3) issued by the national energy agency on 1 month, 27 days in 2021 puts the development and utilization of geothermal energy to a more important position, and requires the emphasis of propelling the heating of geothermal energy, implementing total amount control, and carrying out regional classified management, and propelling the heating of geothermal energy in a manner of combining concentration and dispersion.
Currently, the development of low-carbon clean energy has become a trend of energy transformation. By 2019, the proportion of non-fossil energy in the total energy consumption of China reaches 15.3%, and the target task that the proportion of non-fossil energy in the energy reaches 15% in 2020 has been completed in advance. When the Paris agreement is signed for 5 weeks in 12 months in 2020, china announces that the total domestic production carbon dioxide emission of China units is reduced by more than 65% compared with 2005 by 2030 years, and the proportion of non-fossil energy to primary energy consumption is about 25%. Underground water heating (refrigeration) is vigorously implemented to replace the traditional fossil energy, the use ratio of the fossil energy is reduced, and the method has great significance for improving the energy structure of our province and developing a high-quality new road in an ecological priority and green manner.
Ground source heat pumps and air source heat pumps are distinguished in the form of heating and cooling as emerging as spring shoots after rain, but still have many disadvantages.
The ground source heat pump system has the following defects in utilization:
limiting the heat exchanger field of the soil source buried well: the heat exchange of the ground source heat pump is carried out underground, heat transmission can be carried out only by drilling a well, and the whole process cannot be completed completely if the site is not large enough. Therefore, energy exchange cannot be realized without enough sites, and therefore, the use is limited by the sites.
The heat exchange water collector of the underground well has high investment price: the ground source heat pump has high one-time investment price, the figure of the ground source heat pump is frequent in high-grade commodities, the grade of the ground source heat pump central air conditioner is much higher than that of a common central air conditioner, the energy-saving efficiency of the ground source heat pump central air conditioner can reach more than forty percent, and the investment is just the opposite, and is forty percent higher than that of the common air conditioner.
The buried well heat exchange water separator is not balanced by soil heat: the biggest technical defect of the ground source heat pump is the problem of cold and hot unbalance. Southern areas are mainly used for cooling and require heat to be transferred to the ground. In northern areas, the heating requirement in winter is high, and heat needs to be absorbed from soil. After the operation is carried out for 5 to 7 years, the ground surface of the shallow layer of the facility is unbalanced in cold and hot use, so that the underground energy storage is slightly cold or hot. In the area with large refrigerating capacity all the year round, the underground energy storage temperature is higher. In areas with high heating utilization rate, the energy storage temperature is low. Thereby leading to small temperature difference of the system and reduced heat exchange efficiency. Thereby reducing the efficiency of the plant while affecting the surrounding ecological structure.
Deficiencies in air source heat pump system utilization:
the air source heat pump takes outdoor air as a heat source or a cold source, takes the outdoor air as low-temperature heat under the working condition of heat supply, absorbs heat from the outdoor air, and raises the temperature through the heat pump to send the heat into the room for heat supply. Therefore, the efficiency of the heat pump is greatly reduced when the air source heat pump is used in summer and in winter in cold weather. Moreover, the amount of heating decreases as the outdoor air temperature decreases, which is the opposite of the thermal load demand of the building. Therefore, when the outdoor air temperature is lower than the equilibrium point temperature of the heat pump operation, the air needs to be heated by electricity or other auxiliary heat sources, and in addition, the evaporator of the air source heat pump is seriously frosted under the heating working condition, and the defrosting needs to be regularly and periodically carried out, so that a large amount of energy is consumed. The frosting of the heat pump evaporator is a major technical obstacle in cold regions and high humidity regions, and in summer high temperature weather, the system may not work normally due to the fact that the refrigerating capacity of the heat pump evaporator is reduced along with the temperature rise of outdoor air, and therefore, the application is greatly limited.
Disclosure of Invention
The present invention is directed to a dual heat source coupled heat pump system, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a double-heat-source coupling heat pump system comprises a plurality of soil-source underground well heat exchangers, a plurality of heat pump host evaporators 6, a plurality of heat pump host condensers 7 and a plurality of air source heat pump host 14, wherein the water return ends and the water supply ends of the soil-source underground well heat exchangers are respectively connected with an underground well heat exchange water collector and an underground well heat exchange water distributor through pipelines, the water inlet end of the buried well heat exchange water collector is connected with a ground source side water return subsystem, the water inlet end of the ground source side water return subsystem is connected with the water outlet ends of the evaporators of the plurality of heat pump main units, the water outlet end of the buried well heat exchange water separator is connected with a ground source side water supply subsystem, the water outlet end of the ground source side water supply subsystem is connected with the water inlet ends of a plurality of heat pump host evaporators, the other side of the heat pump host evaporator is provided with a heat pump host condenser, the input ends of a plurality of the heat pump host condensers are all connected with the output end of the user side water supply subsystem, the output ends of a plurality of the heat pump host condensers are all connected with the input end of the user side water return subsystem, the input end of the user side water supply subsystem and the output end of the user side water return subsystem are respectively connected with the output end and the input end of the user side tail end radiator, the water replenishing end of the user side water returning subsystem is connected with the constant pressure water replenishing subsystem, the connecting end of the ground side water returning subsystem and the connecting end of the user side water supplying subsystem are combined into one path to be connected with the air source water supplying subsystem, the connecting end of the ground source side water supply subsystem and the connecting end of the user side water return subsystem are combined into one path to be connected with the air source water return subsystem, the output end of the air source water supply subsystem is connected with the input end of the air source heat pump host, and the input end of the air source water return subsystem is connected with the output end of the air source heat pump host.
Preferably, the ground source side water return subsystem comprises a buried side water separator, a water outlet end of the buried side water separator is connected with a manual valve V78, one end of the manual valve V78 is communicated with an electric main control valve V77 through a pipeline, one end of the electric main control valve V77 is communicated with a manual valve V112 through a pipeline, and the bottom of the manual valve V112 is communicated with a water inlet end of the buried well heat exchange water collector.
Preferably, the input end of the buried side water divider is connected with a manual valve V79, one end of the manual valve V79 is connected with an electric main control valve V17 through a pipeline, one end of the electric main control valve V17 is divided into two paths through a pipeline and is respectively connected with an electric main control valve V15 and a manual valve V6, one end of the electric main control valve V15 is connected with a manual valve V2 through a pipeline, and the bottom of the buried side water divider is connected with a drain valve V80.
Preferably, the ground source side water supply subsystem comprises a buried side water collector and a buried side variable frequency circulating pump, a water outlet end of the buried side water collector is connected with a manual valve V72, one end of the manual valve V72 is divided into six paths by a pipeline and is respectively connected with an electric main control valve V51, an electric main control valve V43, an electric main control valve V26, a manual valve V69, an electric main control valve V25 and a manual valve V57, one end of the electric main control valve V51, one end of the electric main control valve V43 and one end of the electric main control valve V26 are respectively connected with a manual valve V52, a manual valve V44 and a manual valve V27 by pipelines, one end of the manual valve V52, one end of the manual valve V44 and one end of the manual valve V27 are all connected with a buried side variable frequency circulating pump by pipelines, one end of the three buried side variable frequency circulating pumps are respectively connected with a manual valve V53, a manual valve V45 and a manual valve V28 by pipelines, one end of the manual valve V53, one end of the manual valve V45 and one end of the electric main control valve V54 and one end of the electric main control valve V29 are respectively connected with an electric main control valve V70 and an electric main control valve V71, one end of the main control valve V54 and an electric main control valve V5 are respectively connected with an electric main control valve V18 and an evaporation valve V5 by a main control valve V71, one end of the manual valve V57 is connected with a manual valve V58 through a pipeline.
Preferably, a balance valve V73 and a manual valve V74 are sequentially connected to a water inlet end of the underground side water collector, one end of the manual valve V74 is sequentially connected with an electric main control valve V76 and a manual valve V111 through a pipeline, and the bottom of the manual valve V111 is connected with an output end of the underground well heat exchange water separator through a pipeline.
Preferably, the user-side water supply subsystem comprises a user-side water divider, an input end of the user-side water divider is connected with a manual valve V19, one end of the manual valve V19 is sequentially connected with a manual valve V9, an electric main control valve V11 and an electric main control valve V13 through pipelines, two sides of the electric main control valve V13 are respectively connected with the manual valve V4 and the manual valve V8 through pipelines, and one end of the manual valve V4 and one end of the manual valve V8 are respectively connected with output ends of the condensers of the heat pump main unit.
Preferably, the output end of the user-side water divider is sequentially connected with a manual valve V20 and an electric main control valve V60 through a pipeline, and the bottom of the user-side water divider is connected with a drain valve V67 through a pipeline.
Preferably, the user side water return subsystem comprises a user side water collector, the output end of the user side water collector is connected with a manual valve V64 through a pipeline, one end of the manual valve V64 is divided into four paths through a pipeline and is respectively connected with the electric main control valve V113, the electric main control valve V50, the electric main control valve V42 and the electric main control valve V24, one end of the electric main control valve V50 is connected with a manual valve V49 through a pipeline, one end of the electric main control valve V42 is connected with a manual valve V41 through a pipeline, one end of the electric main control valve V24 is connected with a manual valve V23 through a pipeline, one end of the manual valve V49, one end of the manual valve V41 and one end of the manual valve V23 are respectively connected with a user-side variable frequency circulating pump through pipelines, one ends of the three user-side variable frequency circulating pumps are respectively connected with a manual valve V48, a manual valve V40 and a manual valve V22 through pipelines, one end of the manual valve V48, one end of the manual valve V40 and one end of the manual valve V22 are respectively connected with an electric main control valve V47, an electric main control valve V39 and an electric main control valve V21 through pipelines, one end of the electric main control valve V47, one end of the electric main control valve V39 and one end of the electric main control valve V21 are combined into a whole through a pipeline and connected with a manual valve V10, one end of the manual valve V10 is divided into two paths through a pipeline and is respectively connected with an electric main control valve V12 and an electric main control valve V14, one end of the electric main control valve V12 and one end of the electric main control valve V14 are respectively connected with a manual valve V3 and a manual valve V7 through pipelines, one end of the manual valve V3 and one end of the manual valve V7 are respectively connected with the input ends of the condensers of the heat pump main units through pipelines, one end of the electric main control valve V113 is sequentially connected with a manual valve V55 and a manual valve V56 through pipelines.
Preferably, the input end of the user-side water collector is connected with a manual valve V65, one end of the manual valve V65 is divided into two paths by a pipeline and is respectively connected with an electric main control valve V59 and a manual valve V61, one end of the manual valve V61 is connected with a manual valve V62 by a pipeline, the opposite sides of the manual valve V61 and the manual valve V62 are connected with a manual valve V63 by a pipeline, and the bottom of the user-side water collector is connected with a manual valve V66.
Preferably, the constant-pressure water replenishing system comprises an electric main control valve V81, one end of the electric main control valve V81 is divided into two paths through a pipeline and is respectively connected with an electric main control valve V82 and a full-automatic water softening device, one end of the full-automatic water softening device is connected with an electric main control valve V83 through a pipeline, one end of the electric main control valve V82 and one end of the electric main control valve V83 are connected with an electric main control valve V84 through pipelines, one end of the electric main control valve V84 is connected with a stainless steel water storage tank, the output end of the stainless steel water storage tank is connected with a user side constant-pressure water replenishing system through a pipeline, the input end of the stainless steel water storage tank is divided into two paths through a pipeline and is connected with an electric main control valve V91 and an electric main control valve V90, one end of the electric main control valve V91 and one end of the electric main control valve V90 are respectively connected with two ends of a ground source side water replenishing system, the bottom of the stainless steel water storage tank is connected with a drain valve V92 through a pipeline, one end of the ground side water replenishing system is communicated with a ground source side water replenishing system, and the user side constant-pressure water replenishing system is communicated with a user side water returning system.
Preferably, user side constant pressure water charging system includes two user side constant pressure water charging pumps and electronic main control valve V85 and electronic main control valve V86, two user side constant pressure water charging pump's one end is connected with electronic main control valve V85 and electronic main control valve V86 respectively through the pipeline, and electronic main control valve V85's one end and electronic main control valve V86's one end pass through the pipe connection, bury side water charging system including two bury side constant pressure water charging pumps, two bury side constant pressure water charging pump and be connected with electronic main control valve V87 and electronic main control valve V88 respectively through the pipeline, the one end of electronic main control valve V87 and the one end of electronic main control valve V88 are joined in marriage through the pipeline and are connected with electronic main control valve V89 all the way, the one end and the steady voltage expansion tank of electronic main control valve V89 are connected.
Preferably, the air source water supply subsystem comprises an electric main control valve V31, one end of the electric main control valve V31 is connected with a manual valve V35 through a pipeline, one end of the manual valve V35 is connected with a manual valve V38 and an electric main control valve V34 through pipelines, the other end of the manual valve V35 is sequentially connected with an electric main control valve V94, an electric main control valve V98, an electric main control valve V102 (0102), an electric main control valve V106 (0106), an electric main control valve V110, an electric main control valve V95, an electric main control valve V99, an electric main control valve V103 and an electric main control valve V107 through pipelines, the air source water return subsystem comprises an electric main control valve V32, one end of the electric main control valve V32 is connected with a manual valve V36 through a pipeline, one end of the manual valve V36 is connected with a manual valve V37 through a pipeline, one end of the manual valve V37 is sequentially connected with an electric main control valve V33 and an electric main control valve V30 through a pipeline, the other end of the manual valve V37 is sequentially connected with an electric main control valve V93, an electric main control valve V96, an electric main control valve V97, an electric main control valve V100, an electric main control valve V101, an electric main control valve V104, an electric main control valve V105, an electric main control valve V108 and an electric main control valve V109 through pipelines, one end of the electric main control valve V94, one end of the electric main control valve V95, one end of the electric main control valve V98, one end of the electric main control valve V99, one end of the electric main control valve V102, one end of the electric main control valve V103, one end of the electric main control valve V106, one end of the electric main control valve V107, one end of the electric main control valve V110, one end of the electric main control valve V93, one end of the electric main control valve V96, one end of the electric main control valve V97, one end of the electric main control valve V100, one end of the electric main control valve V101, one end of the electric main control valve V104, one end of the electric main control valve V105, one end of the electric main control valve V95, one end of the electric main control valve V108 and one end of the electric main control valve V109 are both connected with an air source heat pump host.
Compared with the prior art, the invention has the beneficial effects that:
by matching the soil source underground well heat exchanger with the air source heat pump host, the problems of soil heat accumulation, cold accumulation, temperature imbalance and ground temperature attenuation caused by unbalanced heating and refrigeration are solved, and the problems of ground source heat pump systems and underground heat exchanger site limitation are solved; the problem of high initial investment price of a ground source heat pump system is solved; the problem that the energy efficiency of an air source heat pump system is limited is solved; the problems of frequent frosting and defrosting of an air source heat pump system are solved; the problems of complex operation and misoperation of valve switching in summer, winter and transition seasons are solved; the problem of the waste of ground source heat pump system, air source heat pump system utilization ratio is solved.
Drawings
FIG. 1 is a system diagram of the present invention;
FIG. 2 is an enlarged view of portion A of the present invention;
FIG. 3 is a diagram of a ground source side water return subsystem of the present invention;
FIG. 4 is a diagram of the ground source side water supply subsystem of the present invention;
FIG. 5 is a diagram of a user side water supply subsystem of the present invention;
FIG. 6 is a diagram of a user side water return subsystem of the present invention;
FIG. 7 is a diagram of a constant pressure water supplement subsystem of the present invention;
FIG. 8 is a diagram of an air source water supply subsystem and an air source water return subsystem of the present invention.
In the figure: 1. a soil source buried well heat exchanger; 2. a heat exchange water collector of the underground well; 3. a buried well heat exchange water separator; 4. a ground source side water return subsystem; 5. a ground source side water supply subsystem; 6. a heat pump host evaporator; 7. a heat pump host condenser; 8. a user side water supply subsystem; 9. a user side end heat sink; 10. a user side water return subsystem; 11. a constant pressure water replenishing subsystem; 12. an air source water supply subsystem; 13. an air source water return subsystem; 14. an air source heat pump host; 15. a buried side water divider; 16. a buried side water collector; 17. an underground side variable frequency circulating pump; 18. a user side water divider; 19. a user side water collector; 20. a user side variable frequency circulating pump; 21. a full-automatic water softening processor; 22. a stainless steel water storage tank; 23. a pressure-stabilizing expansion tank; 24. a user side constant pressure water replenishing pump; 25. a buried side constant pressure water replenishing pump; 001. a manual valve V1; 002. a manual valve V2; 003. a manual valve V3; 004. a manual valve V4; 005. a manual valve V5; 006. a manual valve V6; 007. a manual valve V7; 008. a manual valve V8; 009. a manual valve V9; 010. a manual valve V10; 011. an electric main control valve V11; 012. an electric main control valve V12; 013. an electric main control valve V13; 014. an electric main control valve V14; 015. an electric main control valve V15; 016. an electric main control valve V16; 017. an electric main control valve V17; 018. an electric main control valve V18; 019. a manual valve V19; 020. a manual valve V20; 021. an electric main control valve V21; 022. a manual valve V22; 023. a manual valve V23; 024. an electric main control valve V24; 025. an electric main control valve V25; 026. an electric main control valve V26; 027. a manual valve V27; 028. a manual valve V28; 029. an electric main control valve V29; 030. an electric main control valve V30; 031. an electric main control valve V31; 032. an electric main control valve V32; 033. an electric main control valve V33; 034. an electric main control valve V34; 035. a manual valve V35; 036. a manual valve V36; 037. a manual valve V37; 038. a manual valve V38; 039. an electric main control valve V39; 040. a manual valve V40; 041. a manual valve V41; 042. an electric main control valve V42; 043. an electric main control valve V43; 044. a manual valve V44; 045. a manual valve V45; 046. an electric main control valve V46; 047. an electric main control valve V47; 048. a manual valve V48; 049. a manual valve V49; 050. an electric main control valve V50; 051. an electric main control valve V51; 052. a manual valve V52; 053. a manual valve V53; 054. an electric main control valve V54; 055. a manual valve V55; 056. a manual valve V56; 057. a manual valve V57; 058. a manual valve V58; 059. an electric main control valve V59; 060. an electric main control valve V60; 061. a manual valve V61; 062. a manual valve V62; 063. a manual valve V63; 064. a manual valve V64; 065. a manual valve V65; 066. a manual valve V66; 067. a drain valve V67; 068. an electric main control valve V68; 069. a manual valve V69; 070. a manual valve V70; 071. a manual valve V71; 072. a manual valve V72; 073. a balancing valve V73; 074. a manual valve V74; 075. a drain valve V75; 076. an electric main control valve V76; 077. an electric main control valve V77; 078. a manual valve V78; 079. a manual valve V79; 080. a drain valve V80; 081. an electric main control valve V81; 082. an electric main control valve V82; 083. an electric main control valve V83; 084. an electric main control valve V84; 085. an electric main control valve V85; 086. an electric main control valve V86; 087. an electric main control valve V87; 088. an electric main control valve V88; 089. an electric main control valve V89; 090. an electric main control valve V90; 091. an electric main control valve V91; 092. a drain valve V92; 093. an electric main control valve V93; 094. an electric main control valve V94; 095. an electric main control valve V95; 096. an electric main control valve V96; 097. an electric main control valve V97; 098. an electric main control valve V98; 099. an electric main control valve V99; 100. an electric main control valve V100; 101. an electric main control valve V101; 102. an electric main control valve V102; 103. an electric main control valve V103; 104. an electric main control valve V104; 105. an electric main control valve V105; 106. an electric main control valve V106; 107. an electric main control valve V107; 108. an electric main control valve V108; 109. an electric main control valve V109; 110. an electric main control valve V110; 111. a manual valve V111; 112. a manual valve V112; 113. electric master valve V113.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a dual heat source coupling heat pump system, which comprises a plurality of soil source underground well heat exchangers 1, a plurality of heat pump host evaporators 6, a plurality of heat pump host condensers 7 and a plurality of air source heat pump hosts 14, wherein the water return ends and the water supply ends of the plurality of soil source underground well heat exchangers 1 are respectively connected with an underground well heat exchange water collector 2 and an underground well heat exchange water distributor 3 through pipelines, the water inlet end of the underground well heat exchange water collector 2 is connected with a ground source side water return subsystem 4, the water inlet end of the ground source side water return subsystem 4 is connected with the water outlet ends of the plurality of heat pump host evaporators 6, the water outlet end of the underground well heat exchange water collector 3 is connected with a ground source side water supply subsystem 5, the water outlet end of the ground source side water supply subsystem 5 is connected with the water inlet ends of the plurality of heat pump host evaporators 6, the other side of the heat pump host evaporators 6 is provided with the heat pump host condensers 7, the input ends of a plurality of heat pump host condensers 7 are all connected with the output end of a user side water supply subsystem 8, the output ends of the plurality of heat pump host condensers 7 are all connected with the input end of a user side water return subsystem 10, the input end of the user side water supply subsystem 8 and the output end of the user side water return subsystem 10 are respectively connected with the output end and the input end of a user side end radiator 9, the water replenishing end of the user side water return subsystem 10 is connected with a constant pressure water replenishing subsystem 11, the connecting end of a ground source side water return subsystem 4 and the connecting end of the user side water supply subsystem 8 are combined into a whole and connected with an air source water supply subsystem 12, the connecting end of a ground source side water supply subsystem 5 and the connecting end of the user side water return subsystem 10 are combined into a whole and connected with an air source water return subsystem 13, and the output end of the air source water supply subsystem 12 is connected with the input end of an air source heat pump host 14, the input end of the air source water return subsystem 13 is connected with the output end of the air source heat pump host 14.
The ground source side water return subsystem 4 comprises a buried side water distributor 15, a water outlet end of the buried side water distributor 15 is connected with a manual valve V78078, one end of the manual valve V78078 is communicated with an electric main control valve V77077 through a pipeline, one end of the electric main control valve V77077 is communicated with a manual valve V112112 through a pipeline, and the bottom of the manual valve V112112 is communicated with a water inlet end of the buried well heat exchange water collector 2.
The input end of the buried side water divider 15 is connected with a manual valve V79079, one end of the manual valve V79079 is connected with an electric main control valve V17017 through a pipeline, one end of the electric main control valve V17017 is divided into two paths through a pipeline and is respectively connected with an electric main control valve V15015 and a manual valve V6006, one end of the electric main control valve V15015 is connected with a manual valve V2002 through a pipeline, and the bottom of the buried side water divider 15 is connected with a drain valve V80080.
The ground source side water supply subsystem 5 comprises a buried side water collector 16 and a buried side variable frequency circulating pump 17, the water outlet end of the buried side water collector 16 is connected with a manual valve V72072, one end of the manual valve V72072 is divided into six paths through pipelines to be respectively connected with an electric main control valve V51051, an electric main control valve V43043, an electric main control valve V26026, a manual valve V69069, an electric main control valve V57057, one end of the electric main control valve V51051, one end of the electric main control valve V43043 and one end of the electric main control valve V26026 are respectively connected with a manual valve V52052, a manual valve V44044 and a manual valve V27027 through pipelines, one end of the main control valve V51052, one end of the manual valve V44044 and one end of the electric main control valve V27027 are respectively connected with a buried side variable frequency circulating pump 17 through pipelines, one end of the manual valve V53053, one end of the main control valve V53053 and one end of the electric main control valve V2809 are respectively connected with an electric main control valve V46016, one end of the electric main control valve V46016 and an electric main control valve V46016 through pipelines, one end of the electric main control valve V059 and an electric main control valve V2809 through pipelines, one end of the electric main control valve V2809 and an electric main control valve V2809, one end of the electric main control valve V2806 are respectively connected with a water pump V675 and an electric main control valve V4606 through pipelines, one end of the electric main control valve V675 and an electric main control valve V4606, and the manual valve V69069 is connected with the manual valve V70070 through a manual valve V71071, and one end of the manual valve V57057 is connected with the manual valve V58058 through a pipeline.
The water inlet end of the underground side water collector 16 is sequentially connected with a balance valve V73073 and a manual valve V74074, one end of the manual valve V74074 is sequentially connected with an electric main control valve V76076 and a manual valve V111111 through pipelines, and the bottom of the manual valve V111 is connected with the output end of the underground well heat exchange water distributor 3 through a pipeline.
The user side water supply subsystem 8 comprises a user side water divider 18, the input end of the user side water divider 18 is connected with a manual valve V19019, one end of the manual valve V19019 is sequentially connected with a manual valve V9009, an electric main control valve V11011 and an electric main control valve V13013 through pipelines, two sides of the electric main control valve V13013 are respectively connected with the manual valve V4004 and the manual valve V8008 through pipelines, and one end of the manual valve V4004 and one end of the manual valve V8008 are respectively connected with the output ends of the plurality of heat pump host condensers 7.
The output end of the user side water divider 18 is sequentially connected with a manual valve V20020 and an electric main control valve V60 through pipelines, and the bottom of the user side water divider 18 is connected with a drain valve V67067 through a pipeline.
The user side water return subsystem 10 comprises a user side water collector 19, the output end of the user side water collector 19 is connected with a manual valve V64064 through a pipeline, one end of the manual valve V64064 is divided into four paths through a pipeline and is respectively connected with an electric main control valve V113113, an electric main control valve V50050, an electric main control valve V42042 and an electric main control valve V24024, one end of the electric main control valve V50050 is connected with a manual valve V49049 through a pipeline, one end of the electric main control valve V42042 is connected with a manual valve V41041 through a pipeline, one end of the electric main control valve V24024 is connected with a manual valve V23023 through a pipeline, one end of the manual valve V49049, one end of the manual valve V41041 and one end of the manual valve V23023 are respectively connected with a user side variable frequency circulating pump 20 through pipelines, one end of the three user side variable frequency circulating pumps 20 is connected with a manual valve V48048, one end of the manual valve V40040 and one end of the electric main control valve V39021 through a pipeline, one end of the electric main control valve V10012 and one end of the electric main control valve V1009 and is connected with a main control valve V1009, one end of the electric main control valve V1009 and one end of the electric main control valve V4105 through a main control valve V1009 and a main control valve V21 respectively, one end of the electric main control valve V1009 and the electric main control valve V10010, one end of the electric main control valve V10010 are connected with a manual valve V1009 and one end of the electric main control valve V4105 respectively connected with a manual valve V4105 through a manual valve V475 and one end of the electric main control valve V10010 through a manual valve V1009 and one end of the electric main control valve V21 respectively, one end of the electric main control valve V21 respectively connected with a manual valve V10010 respectively, one electric main control valve V10010 respectively through a manual valve V10010 through a main control valve V1009 and one electric main control valve V475, one electric main control valve V10010 respectively, one electric main control valve V475, one electric main control valve V21 and one electric main valve V21 respectively connected with a main control valve V1009 and one electric main valve V21 respectively connected with a main valve V21 respectively through a main valve V475 and one electric main valve V1009 and one electric main valve V21 respectively, one end of the electric main valve V475 through a manual valve V475, one electric main valve V475 through a main valve V1009 and one electric main control valve V21 respectively, one electric main control valve V21 respectively connected with a main valve V475, one electric main valve V475 and one electric main valve V475.
The input end of the user side water collector 19 is connected with a manual valve V65065, one end of the manual valve V65065 is divided into two paths through a pipeline and is respectively connected with an electric main control valve V59059 and a manual valve V61061, one end of the manual valve V61061 is connected with a manual valve V62062 through a pipeline, the opposite sides of the manual valve V61061 and the manual valve V62062 are connected with a manual valve V63063 through a pipeline, and the bottom of the user side water collector 19 is connected with a manual valve V66066.
The constant-pressure water replenishing subsystem 11 comprises an electric main control valve V81081, one end of the electric main control valve V81081 is divided into two paths through a pipeline and is respectively connected with an electric main control valve V82082 and a full-automatic water softening treatment device 21, one end of the full-automatic water softening treatment device 21 is connected with an electric main control valve V83083 through a pipeline, one end of the electric main control valve V82082 and one end of the electric main control valve V83083 are connected with an electric main control valve V84084 through a pipeline, one end of the electric main control valve V84084 is connected with a stainless steel water storage tank 22, the output end of the stainless steel water storage tank 22 is connected with a user side constant-pressure water replenishing system through a pipeline, the input end of the stainless steel water storage tank 22 is divided into two paths through a pipeline and is connected with an electric main control valve V91091 and an electric main control valve V90090, one end of the electric main control valve V91091 and one end of the electric main control valve V90090 are respectively connected with two ends of a buried side water replenishing system, the bottom of the stainless steel water storage tank 22 is connected with a drain valve V92092 through a pipeline, one end of the buried side water replenishing system is communicated with a ground side water replenishing subsystem 5, and the user side water replenishing subsystem is communicated with a user side water supply constant-pressure water replenishing subsystem 10.
The user side constant pressure water replenishing system comprises two user side constant pressure water replenishing pumps 24, an electric main control valve V85085 and an electric main control valve V86086, one ends of the two user side constant pressure water replenishing pumps 24 are respectively connected with the electric main control valve V85085 and the electric main control valve V86086 through pipelines, one end of the electric main control valve V85085 is connected with one end of the electric main control valve V86086 through a pipeline, the buried side water replenishing system comprises two buried side constant pressure water replenishing pumps 25, the two buried side constant pressure water replenishing pumps 25 are respectively connected with the electric main control valve V87087 and the electric main control valve V88088 through pipelines, one end of the electric main control valve V08877 and one end of the electric main control valve V88088 are connected with an electric main control valve V89089 through a pipeline, and one end of the electric main control valve V89089 is connected with a pressure stabilizing expansion tank 23.
The air source water supply subsystem 12 comprises an electric main control valve V31031, one end of the electric main control valve V31031 is connected with a manual valve V35035 through a pipeline, one end of the manual valve V35035 is connected with a manual valve V38038 and an electric main control valve V34034 through a pipeline, the other end of the manual valve V35035 is sequentially connected with an electric main control valve V94094, an electric main control valve V98098, an electric main control valve V1020102, an electric main control valve V1060106, an electric main control valve V110110, an electric main control valve V95095, an electric main control valve V99099, an electric main control valve V03 and an electric main control valve V107107 through a pipeline, the air source water return subsystem 13 comprises an electric main control valve V32032, one end of the electric main control valve V32032 is connected with a manual valve V36036 through a pipeline, one end of the electric valve V36036 is connected with a manual valve V37037 through a pipeline, one end of the manual valve V37037 is sequentially connected with an electric main control valve V33033 and an electric main control valve V33030 and an electric main control valve V1031104, the main control valve V10809105, the electric main control valve V10010, the other end of the electric main control valve V10010 and the electric main control valve V10010 are sequentially connected with a main control valve V10010, the main control valve V1089, the main control valve V10010 and the electric main control valve V10010, the main control valve V1089 and the electric main control valve V10010, one end of the electric main control valve V94094, one end of the electric main control valve V95095, one end of the electric main control valve V9898, one end of the electric main control valve V99099, one end of the electric main control valve V102102, one end of the electric main control valve V103103, one end of the electric main control valve V106106, one end of the electric main control valve V107107, one end of the electric main control valve V110110, one end of the electric main control valve V93093, one end of the electric main control valve V96096, one end of the electric main control valve V97097, one end of the electric main control valve V100100, one end of the electric main control valve V101101, one end of the electric main control valve V104104, one end of the electric main control valve V105105, one end of the electric main control valve V108108, and one end of the electric main control valve V109109 are connected to the heat pump air source host 14.
When the circulating pump is used specifically, the circulating pump is circulated to a hot water return system: the controller selectively starts the user side variable frequency circulating pump 20 according to the water temperature difference, the water flow and the heat return condition of the underground well from 5 months 1 to 6 months 15 days in each year. The secondary refrigerant is guided by a radiator 9 at the tail end of the user side and flows through an electric main control valve V59059, at the moment, the electric main control valve V59059 is automatically opened under the control of the controller, the secondary refrigerant is converged into a water collector 19 at the user side and then enters an inlet of a variable-frequency circulating pump 20 at the user side, and at the moment, the electric main control valve V50050, the electric main control valve V42042, the electric main control valve V24024, the electric main control valve V47047, the electric main control valve V39039 and the electric main control valve V21021 are automatically opened under the control of the controller. The secondary refrigerant is discharged from an outlet of the user side variable frequency circulating pump 20 and flows through the electric main control valve V30030, at the moment, the electric main control valve V30030 is automatically opened under the control of the controller, the secondary refrigerant passes through the electric main control valve V77077 and is converged into the water distributor 3 of the underground well heat exchanger through the underground side water distributor 15, the secondary refrigerant is collected and discharged by the underground well heat exchange water collector 2 after being fully exchanged heat in the soil source underground well heat exchanger 1 and flows through the electric main control valve V76076, at the moment, the electric main control valve V76076 is automatically opened under the control of the controller and is converged into the underground side water collector 16 and then flows to the user side water distributor 18 through the electric main control valve V25025, the secondary refrigerant reenters the user side end radiator 9 through the electric main control valve V60060 by the user side water distributor 18, and at the moment, the user side variable frequency circulating water pump 20 completes the whole circulation process for the underground well heat recovery system.
For the air source heat pump main machine 14 hot water return system cycle: the principle of air source heat regeneration is seasonal heat regeneration, which is completed from 6 months and 16 days to 7 months and 31 days each year. The specific operation flow is as follows:
the controller selectively starts the user side variable frequency circulating pump 20 according to the water temperature difference, the water flow and the heat return condition of the underground well from 16 days to 31 days in 6 months in each year, and the secondary refrigerant is heated by the air source heat pump host 14 and then pushed into the soil source underground well heat exchanger 1. The secondary refrigerant is supplied from the outlet of the air source heat pump host 14 and flows through the electric main control valve V31031, at this time, the electric main control valve V31031 is automatically opened under the control of the controller, and the electric main control valve V17017, the electric main control valve V18018, the electric main control valve V30030, the electric main control valve V32032 and the electric main control valve V34034 are automatically closed under the control of the controller. The secondary refrigerant enters the buried side water separator 15, the electric main control valve V77077 is automatically opened under the control of the controller, and the secondary refrigerant enters the soil source buried well heat exchanger 1 through the buried well heat exchange water separator 3. After the secondary refrigerant is fully exchanged heat in the soil source underground well heat exchanger 1, the secondary refrigerant is discharged through the underground well heat exchange water collector 2 and enters the underground well water collector 16, and at the moment, the electric main control valve V76076 is automatically opened under the control of the controller. Then the coolant passes through the electric main control valve V113113, at this time, the electric main control valve V113113 is automatically opened under the control of the controller, and enters the user side variable frequency circulating pump 20. At this time, the electric main control valve V24024, the electric main control valve V42042, the electric main control valve V50050, the electric main control valve V21021, the electric main control valve V39039, and the electric main control valve V47047 are automatically opened, and the electric main control valve V11011 and the electric main control valve V12012 are closed. The secondary refrigerant circularly works by the user side variable frequency circulating pump 20 and returns to the air source heat pump host 14 again through the electric main control valve V33033, and the air source heat pump regenerates heat for the underground well at the moment to complete the whole circulation process.
For an air source heat pump hot water supply system cycle: and selecting a time period with the highest heat supply energy efficiency of an air source in winter to perform winter heating operation, and starting the air source heat pump host 14 from 11 months and 15 days to 12 months and 10 days-2 months and 26 days to 3 months and 16 days in each year. The specific operation flow is as follows: the number of the air source heat pump host 14 and the user side variable frequency circulating pump 20 are selectively started according to specific data conditions such as ambient temperature, ambient humidity, wind speed, water temperature difference, water flow and the like in 11 months 15 to 12 months 10 days and 2 months 26 to 3 months 16 days every year, secondary refrigerant is heated by the air source heat pump host 14 and then is supplied from an outlet of the air source heat pump host 14, at the moment, the electric main control valve V34034 is automatically opened under the control of the controller and is supplied to the user side water divider 18 through the electric main control valve V34034, at the moment, the electric main control valve V11011, the electric main control valve V12012, the electric main control valve V25025, the electric main control valve V17017, the electric main control valve V18018, the electric main control valve V30030, the electric main control valve V31031 and the electric main control valve V32032 are automatically closed under the control of the controller, after the secondary refrigerant enters the user side water divider 18, the electric main control valve V60060 is automatically opened, and the secondary refrigerant enters the user side end radiator 9. (in this case, the manual valves V19019, V20020 are normally open valves, and the manual valves V61061, V62062, V63063, and V67067 are normally closed valves). The secondary refrigerant is fully radiated by the radiator 9 at the end of the user side and then enters the water collector 19 at the end of the user side through the electric main control valve V59, at the moment, the electric main control valve V59059 is automatically opened under the intelligent drive, and the manual valve V64064 and the manual valve V65065 are normally opened valves. And then, the secondary refrigerant enters the user side variable-frequency circulating pump 20, at the moment, the electric main control valve V113113 is automatically closed, the electric main control valve V24024, the electric main control valve V42042, the electric main control valve V50050, the electric main control valve V21021, the electric main control valve V39039 and the electric main control valve V47047 are automatically opened, the user side variable-frequency circulating pump 20 performs speed regulation and work under intelligent control, and returns to the air source heat pump host 14 through the electric main control valve V33033, and at the moment, the air source heat pump supplies heat to the end user to complete the whole circulating process.
For the cycle of a ground source heat pump hot water supply system: the time control node of the ground source heat pump supplies heat from 12 months and 11 days to 1 month and 15 days to 2 months and 1 day to 2 months and 25 days. The specific operation flow is as follows:
heat pump host evaporator 6 side (chilled water)
The intelligent automatic control system of the soil source underground well heat exchanger 1 is characterized in that the intelligent automatic control system of the soil source underground well heat exchanger 1 is used for selectively opening the underground side variable-frequency circulating pump 17 and the number of the soil source underground well heat exchangers 1 according to specific data conditions such as ambient temperature, ambient humidity, wind speed, water temperature difference, water flow and the like under the control of a controller, an electric main control valve V17017 is automatically opened under the control of the controller, chilled water is supplied from an outlet of a heat pump host evaporator 6 and flows into an underground side water collector 16, and at the moment, the electric main control valve V77077 is automatically opened under the control of the controller. And the manual valve V78078, the manual valve V79079, the manual valve V112112 and the manual valve V111111 are normally open valves, and the chilled water is converged into the underground well heat exchange water collector 2. The chilled water is fully exchanged heat in the soil source buried well heat exchanger 1 (a 'heat extraction' process), and then is supplied out from the buried well heat exchange water separator 3 and enters the buried side water collector 16. At the moment, the electric main control valve V76076 is opened, the manual valve V72072, the balance valve V73073 and the manual valve V74074 are normally open valves, and the drain valve V75075 is a drain valve which is in a normally closed state. The electric main control valve V68068, the manual valve V69069, the manual valve V70070 and the manual valve V71071 are normally closed valves. At the moment, the electric main control valve V25025 and the electric main control valve V113113 are closed, the manual valve V57057 and the manual valve V58058 are normally closed valves, and the chilled water enters the underground side variable frequency circulating pump 17. At the moment, the electric main control valve V18018 is automatically opened, and the underground side variable frequency circulating pump 17 intelligently adjusts and works to discharge the frozen water into the water inlet of the evaporator 6 of the heat pump host. At the moment, under the condition of heating of the ground source heat pump, the evaporation side (chilled water) completes the whole cycle process.
Heat pump host condenser 7 side (Cooling water)
The soil source underground heat exchangers 1 are selectively opened from 11 days in 12 months to 15 days in 1 month and from 1 day in 2 months to 25 days in 2 months in each year according to specific data conditions such as ambient temperature, ambient humidity, wind speed, water temperature difference, water flow and the like, a user side variable frequency circulating pump 20 and 1 number of soil source underground heat exchangers are selectively opened, an electric main control valve V11011 is automatically opened under the control of a controller, cooling water is supplied from an outlet of a condenser 7 of a heat pump host machine and is collected into a user side water distributor 18, at the moment, the electric main control valve V60060 is automatically opened under the control of the controller, and a manual valve V19019 and a manual valve V20020 are normally opened valves. The cooling water enters the user side end radiator 9, the cooling water returns to the user side water collector 19 after fully exchanging heat in the user side end radiator 9 (which is a 'heat release' process), at the moment, the electric main control valve V59059 is opened, and the manual valve V64064 and the manual valve V65065 are normally open valves. And then the cooling water enters a user side variable frequency circulation 20 pump, at the moment, the electric main control valve V25025 and the electric main control valve V113113 are closed, and the electric main control valve V24024, the electric main control valve V42042, the electric main control valve V50050, the electric main control valve V21021, the electric main control valve V39039 and the electric main control valve V47047 are opened. The electric main control valve V12012 and the electric main control valve V14014 are automatically opened, and the cooling water enters the condenser 7. At the moment, under the condition of heating of the ground source heat pump, the condenser 7 (cooling water) of the heat pump main unit completes the normal circulation process.
For the hot water system circulation of the ground source heat pump and the air source heat pump main machine 14: the time control node for the heat supply of the ground source heat pump and the air source heat pump host 14 supplies heat for 1 month and 6 days to 1 month and 31 days. The specific operation flow is as follows:
heat pump host evaporator 6 side (chilled water)
The ground source heat pump and air source heat pump host 14 selectively starts the variable frequency circulating pump 17 at the underground side and 1 number of the soil source underground heat exchangers according to the specific data conditions of ambient temperature, ambient humidity, wind speed, water temperature difference, water flow and the like within 1 month and 6 days to 1 month and 31 days in each year, the electric main control valve V17017 is automatically started under the control of the controller, the chilled water (the electric main control valve V15015 is selectively started) is supplied from the outlet of the evaporator 6 of the heat pump host and flows into the water collector 16 at the underground side, and at the moment, the electric main control valve V77077 is automatically started under the control of the controller. And a manual valve V78078, a manual valve V79079, a manual valve V112112 and a manual valve V111111 are normally open valves, and the chilled water is converged into the underground well heat exchange water collector 2. The chilled water is fully exchanged heat in the soil source buried well heat exchanger 1 (a 'heat extraction' process), and then is supplied out from the buried well heat exchange water separator 3 and enters the buried side water collector 16. At the moment, the electric main control valve V76076 is opened, the manual valve V72072, the balance valve V73073 and the manual valve V74074 are normally open valves, and the drain valve V75075 is a drain valve which is in a normally closed state. The electric main control valve V68068, the manual valve V69069, the manual valve V70070 and the manual valve V71071 are normally closed valves. At this time, the electric main control valve V25025 and the electric main control valve V113113 are closed, the manual valve V57057 and the manual valve V58058 are normally closed valves, and the chilled water enters the underground side variable frequency circulating pump 17. At the moment, the electric main control valve V18018 is automatically opened, and the underground side variable frequency circulating pump 17 discharges the frozen water into the water inlet of the evaporator 6 after adjusting to do work. At the moment, under the condition of heating of the ground source heat pump, the evaporation side (chilled water) completes the whole cycle process.
Heat pump host evaporator 6 side (chilled water)
The number of the user side variable frequency circulating pumps 20 and the number of the ground source heat pump host machines 14 are selectively started according to specific data conditions such as ambient temperature, ambient humidity, wind speed, water temperature difference, water flow and the like from 1 month 6 to 1 month 31 every year, the electric main control valve V11011 and the electric main control valve V13013 are automatically started under the control of the controller, cooling water is supplied from an outlet of the condenser 7 and flows into the user side water distributor 18, the electric main control valve V60060 is automatically started under the control of the controller, and the manual valve V19019 and the manual valve V20020 are normally opened valves. The cooling water enters the user side end radiator 9, the cooling water returns to the user side water collector 19 after fully exchanging heat in the user side end radiator 9 (which is a 'heat release' process), at this time, the electric main control valve V59059 is opened, and the manual valve V64064 and the manual valve V65065 are normally open valves. And then the cooling water enters the user side variable frequency circulating pump 20, the electric main control valve V25025 and the electric main control valve V113113 are closed at the moment, and the electric main control valve V24024, the electric main control valve V42042, the electric main control valve V50050, the electric main control valve V21021, the electric main control valve V39039 and the electric main control valve V47047 are opened. And the electric main control valve V12012 and the electric main control valve V14014 are automatically opened, and the cooling water enters the condenser 7 of the heat pump main machine. The opening and the number of the air source heat pump main machines 14 are converted along with the outdoor environment temperature, the environment humidity, the wind speed, the water temperature difference of cooling water, the water flow and the heat difference of the heat supply required at present, and the air source heat pump main machines are selectively and purposely opened; the cooling water is heated by the air source heat pump host 14 and then is supplied from the outlet, at this time, the electric main control valve V34034 is automatically opened under the control of the controller, the cooling water is supplied to the end user side water distributor 18 through the electric main control valve V34034, at this time, the electric main control valve V25025/electric main control valve V30030, the electric main control valve V31031, the electric main control valve V32032 and the electric main control valve V113113 are automatically closed under the control of the controller, the secondary refrigerant enters the end user side water distributor 18 and then is automatically opened through the electric main control valve V60060, and the secondary refrigerant enters the end radiator 9 at the user side. At the moment, the manual valve V19019 and the manual valve V20020 are normally open valves, and the manual valve V61061, the manual valve V62062, the manual valve V63063, the manual valve V66066 and the drain valve V67067 are normally closed valves. The cooling water enters the end user water collector 19 through the electric main control valve V59059 after being fully radiated by the heat radiating equipment at the tail end, at the moment, the electric main control valve V59059 is opened, and the manual valve V64064/the manual valve V65065 are normally opened valves. Then, cooling water enters the user side variable frequency circulating pump 20, the electric main control valve V24024, the electric main control valve V42042, the electric main control valve V50050, the electric main control valve V21021, the electric main control valve V39039 and the electric main control valve V47047 are in an automatic opening state, the user side variable frequency circulating pump 20 performs speed regulation and work, and returns to the air source heat pump host 14 through the electric main control valve V33033, and at the moment, under the condition that the ground source heat pump and the air source heat pump host 14 perform heating, the condenser 7 (cooling water) completes the whole work circulation process.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (4)

1. The utility model provides a two heat source manifold type heat pump system, includes that a plurality of soil sources bury well heat exchanger (1), a plurality of heat pump host computer evaporimeters 6, a plurality of heat pump host computer condensers 7 and a plurality of air source heat pump host computer 14, its characterized in that: the water return ends and the water supply ends of a plurality of soil source buried well heat exchangers (1) are respectively connected with a buried well heat exchange water collector (2) and a buried well heat exchange water distributor (3) through pipelines, the water inlet end of the buried well heat exchange water collector (2) is connected with a ground source side water supply subsystem (4), the water inlet end of the ground source side water return subsystem (4) is connected with the water outlet ends of a plurality of heat pump host evaporators (6), the water outlet end of the buried well heat exchange water distributor (3) is connected with a ground source side water supply subsystem (5), the water outlet end of the ground source side water supply subsystem (5) is connected with the water inlet ends of a plurality of heat pump host evaporators (6), the other side of the heat pump host evaporators (6) is provided with a heat pump host condenser (7), the input ends of a plurality of the heat pump host condensers (7) are all connected with the output end of a user side water supply subsystem (8), the output ends of the heat pump host condensers (7) are all connected with the input end of a user side water return subsystem (10), the input end of the user side water supply subsystem (8) and the water supply subsystem (10) are respectively connected with the water supply subsystem (10), and the water supply subsystem (12) and the water supply subsystem (10) are connected with the water supply subsystem at the terminal of the user side water supply subsystem (4) and the user side water supply subsystem (10) and the user side water supply subsystem (12) and the user water supply subsystem, the connecting end of the ground source side water supply subsystem (5) and the connecting end of the user side water return subsystem (10) are combined into one path and connected with the air source water return subsystem (13), the output end of the air source water supply subsystem (12) is connected with the input end of the air source heat pump host (14), and the input end of the air source water return subsystem (13) is connected with the output end of the air source heat pump host (14);
the ground source side water return subsystem (4) comprises a buried side water divider (15), the water outlet end of the buried side water divider (15) is connected with a manual valve V78 (078), one end of the manual valve V78 (078) is communicated with an electric main control valve V77 (077) through a pipeline, one end of the electric main control valve V77 (077) is communicated with a manual valve V112 (112) through a pipeline, and the bottom of the manual valve V112 (112) is communicated with the water inlet end of the buried well heat exchange water collector (2);
the input end of the buried side water divider (15) is connected with a manual valve V79 (079), one end of the manual valve V79 (079) is connected with an electric main control valve V17 (017) through a pipeline, one end of the electric main control valve V17 (017) is divided into two paths through a pipeline and is respectively connected with an electric main control valve V15 (015) and a manual valve V6 (006), one end of the electric main control valve V15 (015) is connected with a manual valve V2 (002) through a pipeline, and the bottom of the buried side water divider (15) is connected with a drain valve V80 (080);
the ground source side water supply subsystem (5) comprises a buried side water collector (16) and a buried side frequency conversion circulating pump (17), the water outlet end of the buried side water collector (16) is connected with a manual valve V72 (072), one end of the manual valve V72 (072) is divided into six paths through a pipeline and is respectively connected with an electric main control valve V51 (051), an electric main control valve V43 (043), an electric main control valve V26 (026), a manual valve V69 (069), an electric main control valve V25 (025) and a manual valve V57 (057), one end of the electric main control valve V51 (051), one end of the electric main control valve V43 (043) and one end of the electric main control valve V26 (026) are respectively connected with a manual valve V52 (052), one end of the manual valve V44 (044) and one end of the manual valve V27 (027) through pipelines, one end of the manual valve V52, one end of the manual valve V44 (044) and one end of the manual valve V27 (027) are respectively connected with a ground side frequency conversion circulating pump V28 through pipelines, the buried side water collector V28 and the electric main control valve V28, the buried side water collector V28 is respectively connected with the electric main control valve V52 (028) through a frequency conversion circulating pump V52, the manual valve V28 and the electric main control valve V28, the electric main control valve V28 and the electric main control valve V28 (028, one end of the manual valve V28 and the electric main control valve V26 (028, the buried side of the manual valve V28, one end of the electric main control valve V54 (054), one end of the electric main control valve V46 (046) and one end of the electric main control valve V29 (029) are combined into one path through a pipeline and are connected with the electric main control valve V18 (018), the electric main control valve V18 (018) is divided into two paths through a pipeline and the electric main control valve V16 (016) and is respectively connected with the manual valve V1 (001) and the manual valve V5 (005), the manual valve V1 (001) and the manual valve V5 (005) are respectively connected with the water inlet ends of the heat pump host evaporators (6) through pipelines, the bottom of the buried side water collector (16) is connected with a drain valve V75 (075), one end of the manual valve V69 (069) is connected with the electric main control valve V68 (068) and the manual valve V70 (070) through a pipeline, the manual valve V69 (069) is connected with the manual valve V70 (070) through a manual valve V71 (070), and one end of the manual valve V57V (057) is connected with the manual valve V58 through a pipeline;
the user side water supply subsystem (8) comprises a user side water distributor (18), the input end of the user side water distributor (18) is connected with a manual valve V19 (019), one end of the manual valve V19 (019) is sequentially connected with a manual valve V9 (009), an electric main control valve V11 (011) and an electric main control valve V13 (013) through pipelines, two sides of the electric main control valve V13 (013) are respectively connected with a manual valve V4 (004) and a manual valve V8 (008) through pipelines, and one end of the manual valve V4 (004) and one end of the manual valve V8 (008) are respectively connected with the output ends of the plurality of heat pump main machine condensers (7);
the user-side water return subsystem (10) comprises a user-side water collector (19), the output end of the user-side water collector (19) is connected with a manual valve V64 (064) through a pipeline, one end of the manual valve V64 (064) is divided into four paths through a pipeline and is respectively connected with an electric main control valve V113 (113), an electric main control valve V50 (050), an electric main control valve V42 (042) and an electric main control valve V24 (024), one end of the electric main control valve V50 (050) is connected with a manual valve V49 (049) through a pipeline, one end of the electric main control valve V42 (042) is connected with a manual valve V41 (041) through a pipeline, one end of the electric main control valve V24 (024) is connected with a manual valve V23 (023) through a pipeline, one end of the manual valve V49 (049), one end of the manual valve V41 (041) and one end of the electric main control valve V23 (023) are respectively connected with a user-side frequency conversion main control valve V20 through a pipeline, one end of the manual valve V048 and one end of the electric main control valve V038, one end of the manual valve V038 are respectively connected with a manual valve V038, one main control valve V038, one end of the manual valve V038, one manual main control valve V22 and the electric main control valve V22 (040) through a pipeline, one manual valve V8, one manual valve V038, one end of the electric main control valve V038, one manual valve V22 (024), one manual valve V8, one manual valve V22, one end of the electric main control valve V22 and the electric main control valve V8, the manual valve V8, the three user-V8, the main control valve V22 (024) are respectively connected with the electric main control valve V8, and the electric main control valve V8, the three main control valve V22, one end of the electric main control valve V47 (047), one end of the electric main control valve V39 (039) and one end of the electric main control valve V21 (021) are combined into one path through pipelines to be connected with a manual valve V10 (010), one end of the manual valve V10 (010) is divided into two paths through a pipeline and is respectively connected with an electric main control valve V12 (012) and an electric main control valve V14 (014), one end of the electric main control valve V12 (012) and one end of the electric main control valve V14 (014) are respectively connected with a manual valve V3 (003) and a manual valve V7 (007) through pipelines, one end of the manual valve V3 (003) and one end of the manual valve V7 (007) are respectively connected with the input ends of the plurality of heat pump main machine condensers (7) through pipelines, one end of the electric main control valve V113 (113) is sequentially connected with a manual valve V55 (55) and a manual valve V56 (56) through a pipeline, the input end of the user side water collector (19) is connected with a manual valve V65 (065), one end of the manual valve V65 (065) is divided into two paths through a pipeline and is respectively connected with an electric main control valve V59 (059) and a manual valve V61 (061), one end of the manual valve V61 (061) is connected with a manual valve V62 (062) through a pipeline, the opposite sides of the manual valve V61 (061) and the manual valve V62 (062) are connected with a manual valve V63 (063) through a pipeline, the bottom of the user side water collector (19) is connected with a manual valve V66 (066);
air source water supply subsystem (12) is including electronic main control valve V31 (031), the one end of electronic main control valve V31 (031) has manual valve V35 (035) through the pipe connection, the one end of manual valve V35 (035) has manual valve V38 (038) and electronic main control valve V34 (034) through the pipe connection, the other end of manual valve V35 (035) has connected gradually electronic main control valve V94 (094), electronic main control valve V98 (098), electronic main control valve V102 (0102), electronic main control valve V106 (0106), electronic main control valve V110 (110), electronic main control valve V95 (095), electronic main control valve V99 (099), electronic main control valve V103 (103) and electronic main control valve V107 (107) through the pipeline connection, return water subsystem (13) is including electronic main control valve V32 (032), the one end of electronic main control valve V32 (032) has manual valve V36 (036) through the pipe connection, the one end of electronic main control valve V36 (097) has connected gradually manual valve V0337), electronic main control valve V30 (037) through manual valve V037), electronic main control valve V30 (097) and electronic main control valve V30 (037), electronic main control valve V30 (097) through the main control valve V30 (037), the electronic main control valve V30 (097) and the electronic main control valve V30 (097) through the main control valve V30 (037) in proper order, the main control valve V30 (097) and the main control valve V7, electric main control valve V101 (101), electric main control valve V104 (104), electric main control valve V105 (105), electric main control valve V108 (108) and electric main control valve V109 (109), electric main control valve V94 (094)
One end of (1), one end of electric main control valve V95 (095), one end of electric main control valve V98 (98), one end of electric main control valve V99 (099), one end of electric main control valve V102 (102), one end of electric main control valve V103 (103), one end of electric main control valve V106 (106), one end of electric main control valve V107 (107) and one end of electric main control valve V110 (110), one end of electric main control valve V93 (093), one end of electric main control valve V96 (096), one end of electric main control valve V97 (097), one end of electric main control valve V100 (100), one end of electric main control valve V101 (101), one end of electric main control valve V104 (104), one end of electric main control valve V105 (105), one end of electric main control valve V108 (108) and one end of electric main control valve V109 (109) are all connected with a heat pump air source host (14).
2. A dual heat source coupled heat pump system of claim 1, wherein: the water inlet end of the underground side water collector (16) is sequentially connected with a balance valve V73 (073) and a manual valve V74 (074), one end of the manual valve V74 (074) is sequentially connected with an electric main control valve V76 (076) and a manual valve V111 (111) through a pipeline, and the bottom of the manual valve V111 is connected with the output end of the underground well heat exchange water distributor (3) through a pipeline.
3. A dual heat source coupled heat pump system according to claim 1, wherein: the output end of the user side water divider (18) is sequentially connected with a manual valve V20 (020) and an electric main control valve V60 through a pipeline, and the bottom of the user side water divider (18) is connected with a drain valve V67 (067) through a pipeline.
4. A dual heat source coupled heat pump system according to claim 1, wherein: the constant-pressure water supplementing subsystem (11) comprises an electric main control valve V81 (081), one end of the electric main control valve V81 (081) is divided into two paths through a pipeline and is respectively connected with an electric main control valve V82 (082) and a full-automatic water softening treatment device (21), one end of the full-automatic water softening treatment device (21) is connected with an electric main control valve V83 (083) through a pipeline, one end of the electric main control valve V82 (082) and one end of the electric main control valve V83 (083) are connected with an electric main control valve V84 (084) through a pipeline, one end of the electric main control valve V84 (084) is connected with a stainless steel water storage tank (22), and the output end of the stainless steel water storage tank (22) is connected with a user side constant-pressure water supplementing system through a pipeline, the input end of the stainless steel water storage tank (22) is divided into two paths through a pipeline and is connected with an electric main control valve V91 (091) and an electric main control valve V90 (090), one end of the electric main control valve V91 (091) and one end of the electric main control valve V90 (090) are respectively connected with two ends of a water replenishing system on the underground side, the bottom of the stainless steel water storage tank (22) is connected with a drain valve V92 (092) through a pipeline, one end of the water replenishing system on the underground side is communicated with a water supplying subsystem (5) on the ground source side, a constant pressure water replenishing system on the user side is communicated with a water returning subsystem (10) on the user side, the constant pressure water replenishing system on the user side comprises two constant pressure water replenishing pumps (24) on the user side, an electric main control valve V85 (085) and an electric main control valve V86 (086), two the one end of user side constant pressure moisturizing pump (24) is connected with electronic main control valve V85 (085) and electronic main control valve V86 (086) respectively through the pipeline, and the one end of electronic main control valve V85 (085) and the one end of electronic main control valve V86 (086) pass through the pipe connection, bury the side moisturizing system and include two and bury side constant pressure moisturizing pump (25), two bury side constant pressure moisturizing pump (25) and be connected with electronic main control valve V87 (087) and electronic main control valve V88 (088) respectively through the pipeline, the one end of electronic main control valve V87 (087) and the one end of electronic main control valve V88 (088) are joined into all the way through the pipeline and are connected with electronic main control valve V89 (089), the one end of electronic main control valve V89 (089) is connected with steady voltage expansion tank (23).
CN202211118305.3A 2022-09-15 2022-09-15 Double-heat-source coupling type heat pump system Active CN115218555B (en)

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CN111457614A (en) * 2020-05-20 2020-07-28 刘长志 Air source solar ground source heat pump unit system
CN211977002U (en) * 2019-12-11 2020-11-20 中国煤炭地质总局水文地质局 Single heating ground source heat pump system
CN214581407U (en) * 2021-04-15 2021-11-02 江苏通亚住宅产业化技术有限公司 Air source heat pump auxiliary soil source heat pump cooling and heating system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202274678U (en) * 2011-05-03 2012-06-13 神华集团有限责任公司 Heat pump system
US20130091883A1 (en) * 2011-09-26 2013-04-18 Lennox Industries Inc. Controller, method of operating a water source heat pump and a water source heat pump
US20150121913A1 (en) * 2012-05-18 2015-05-07 Mitsubishi Electric Corporation Heat pump device
CN103912938A (en) * 2013-01-08 2014-07-09 珠海格力电器股份有限公司 Air-conditioning system
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