CN110307669A - A kind of solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation - Google Patents
A kind of solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation Download PDFInfo
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- CN110307669A CN110307669A CN201910545372.5A CN201910545372A CN110307669A CN 110307669 A CN110307669 A CN 110307669A CN 201910545372 A CN201910545372 A CN 201910545372A CN 110307669 A CN110307669 A CN 110307669A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/005—Machines, plants or systems, using particular sources of energy using solar energy in compression type systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- General Engineering & Computer Science (AREA)
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- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
A kind of solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation of the present invention, belongs to technical field of heat pumps；Provide the solar energy synergy multi-mode heating combined equipment of a kind of utilization rate for improving solar energy and the adaptability significantlyd change to outdoor temperature；A kind of technical solution are as follows: solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation, including solar thermal collector, evaporator, low-pressure stage compressor, three double-tube heat exchangers, low-pressure stage throttle valve, high pressure stage compressor, condenser, hiigh pressure stage throttle valve, first to the 6th switching valve, the present apparatus can be divided into one stage of compression heat pump heating system, two stages of compression heat pump heating system, solar thermal collector and the heat pump united heating system of one stage of compression, solar thermal collector and the heat pump united heating system of two stages of compression by operational mode；It the composite can be widely applied to heating field.
Description
Technical field
A kind of solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation of the present invention, belongs to heat supply process neck
Domain.
Background technique
Solar utilization technique comparative maturity, using the sun can be carried out heating also obtained it is commonly used.Solar energy
When abundance, solar thermal collector area are enough, building orientation heat preservation is met the requirements, solar energy hot system independent heat supply can meet
User requires, wherein and solar thermal collector area, building orientation heat preservation etc. do not change over time and change after determining, but too
It is positive can variation have the characteristics that unstability and intermittent, therefore solar energy hot system independent heat supply is difficult to meet user's need
It asks.
By the literature search discovery to the prior art, the common heating structure that solves the above problems is: using auxiliary heat
Combine heating system with solar thermal collector in source.The patent of invention of Publication No. CN 106322833A discloses a kind of " superposition type
Ultra-low temperature air source heat pump and its heating method ", the device is by solar thermal collector heating system and air source heat pump heating system
System composition, under normal circumstances using solar thermal collector heating system and air source heat pump heating system overlapping operational mode；When
When solar irradiation enriches, using solar thermal collector heating system direct heating mode；When solar irradiation deficiency, using air
Source heat pump heating system direct heating mode.The utility model patent of Publication No. CN 204648741U discloses a kind of " sun
Can spray and spray compression joint heat pump system with photovoltaic steam ", which is divided into cooling condition and heating condition；Refrigeration
Operating condition, when no solar radiation, system uses air energy twin-stage both vapor compression auxiliary system circularly cooling, when collection solar energy not
When sufficient, system is freezed simultaneously using cascade cycle and air energy twin-stage both vapor compression auxiliary system circulation, when the sun of collection
When being able to satisfy refrigeration demand, system is freezed using cascade cycle；Heating condition, when being collected into enough solar energy,
Using solar energy jetting and photovoltaic vapour injection compressibility heat supply, it be not collected into enough solar energy situations
Under, only with the steam compressed auxiliary system heat supply of air energy twin-stage.The patent of invention of Publication No. CN 102778079B discloses
A kind of " solar energy jetting combines heat pump system with Two-stage Compression ", the device is in the case where solar energy abundance, using solar energy
The cascade cycle scheme of spraying system and level-one steam compression system；The case where solar energy cannot fully meet system operation
Under, cascade cycle and outdoor-side double-stage the both vapor compression auxiliary using solar energy jetting system and level-one steam compression system are
System while operating scheme；In the case where no solar energy, using outdoor-side double-stage both vapor compression auxiliary system operating scheme.
However, in the present invention as stated above, the invention of Publication No. CN 106322833A is heated using solar thermal collector
Under system and air source heat pump heating system overlapping operational mode, heat exchanger is in parallel with surface air cooler, since the two temperature difference is larger, fortune
Pressure imbalance problem between heat exchanger and surface air cooler is easy to appear during row；Publication No. CN 204648741U's is practical
Structure is complicated for new patent, is unfavorable for running mode switching in actual mechanical process, and simultaneity factor includes two injectors, two
Compressor, investment of equipment are larger；The invention solar energy jetting system of Publication No. CN 102778079B is under high heat-collecting temperature
It could drive, and high heat-collecting temperature reduces collecting efficiency, it is unfavorable to Solar use.In conclusion above-mentioned technical proposal pair
The utilization efficiency of solar energy is not high enough, and there are also rooms for promotion, while adaptability when significantling change to outdoor temperature also needs to be mentioned
It is high.
Summary of the invention
A kind of solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation of the present invention, overcomes the prior art and deposits
Deficiency, provide it is a kind of improve solar energy utilization rate and the adaptability that outdoor temperature is significantlyd change solar energy synergy
Multi-mode heating combined equipment.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of to be recycled too based on compressing hot pump
Positive energy synergy multi-mode heating combined equipment, including solar thermal collector, evaporator, low-pressure stage compressor, three double-tube heat exchangers, low pressure
Grade throttle valve, high pressure stage compressor, condenser, hiigh pressure stage throttle valve and the first to the 6th switching valve；
Low-pressure stage throttle valve, evaporator and low are sequentially passed through by pipeline in the outlet in the first annular channel in three double-tube heat exchangers
It arbitrarily downgrades and is connected after compressor with the entrance in first annular channel；
High pressure stage compressor, condenser and hiigh pressure stage are sequentially passed through by pipeline in the outlet of inner layer sleeve in three double-tube heat exchangers
It is connected after throttle valve with the entrance of inner layer sleeve；
The outlet of the second circular passage in three double-tube heat exchangers is connected after the 4th switching valve with water feed inlet by pipeline
It is logical；The entrance of the second circular passage in three double-tube heat exchangers is connected after third switching valve with backwater outlet by pipeline
It is logical；
The outlet of condenser is connected after the 6th switching valve with water feed inlet by pipeline；The entrance of condenser passes through pipeline
It is connected after the 5th switching valve with backwater outlet；
The outlet of solar thermal collector is connected after the second switching valve with water feed inlet by pipeline；Solar thermal collector
Entrance is connected after the first switching valve with backwater outlet by pipeline.
Further, it in the triple channel double-tube heat exchanger, is formed between inner layer sleeve and middle casing described first annular
Channel forms second circular passage between middle casing and outer layer sleeve, circulation hiigh pressure stage refrigeration in the inner layer sleeve
Agent, circulate in the first annular channel low-pressure stage refrigerant, and circulate hot water in second circular passage.
Further, the triple channel double-tube heat exchanger is using parallel arrangement or snakelike arrangement.
Further, in the triple channel double-tube heat exchanger of the parallel arrangement, the quantity for the triple channel casing being parallel to each other is 2
It is more than root.
Further, in the triple channel double-tube heat exchanger of the snakelike arrangement, triple channel casing using an inflection arrange or
The structure of multiple inflection arrangement.
The present invention has the advantages that compared with prior art.
1. no matter solar radiation is strong or weak, present system can make full use of the heat of solar energy, insufficient section again
It is supplemented with compressing hot pump, meanwhile, as the reduction of outdoor temperature and heating load increase, this system is by one stage of compression heat pump
The method of operation is switched to two stages of compression operation of heat pump mode, can save electric energy to the greatest extent.I.e. this system can be according to difference
Outdoor temperature, intensity of solar radiation select different operational modes to make full use of the sun while meeting indoor heat load demand
It can resource.
2. low-temperature water heating circuit, high-temperature-hot-water circuit and solar heat water loop are parallel with one another in present system,
In cold season, even if system component malfunction, it still can guarantee that system for user's heating, improves the stabilization of system
Property.
Detailed description of the invention
Fig. 1 is a kind of solar energy synergy multi-mode heating combined equipment figure based on compressing hot pump circulation of the invention.
Fig. 2 is structural schematic diagram of the embodiment of the present invention under the first operational mode.
Fig. 3 is structural schematic diagram of the embodiment of the present invention under second of operational mode.
Fig. 4 is structural schematic diagram of the embodiment of the present invention under the third operational mode.
Fig. 5 is structural schematic diagram of the embodiment of the present invention under the 4th kind of operational mode.
Fig. 6 is the schematic diagram for the parallel tee road double-tube heat exchanger that the embodiment of the present invention one provides.
Fig. 7 is the schematic diagram of snakelike triple channel double-tube heat exchanger provided by Embodiment 2 of the present invention.
Fig. 8 is the A-A cross-sectional view in Fig. 6, Fig. 7.
In figure, 1- solar thermal collector, 2- evaporator, 3- low-pressure stage compressor, tri- double-tube heat exchanger of 4-, 5- low-pressure stage section
Flow valve, 6- high pressure stage compressor, 7- condenser, 8- hiigh pressure stage throttle valve, the first switching valve of 9-, the second switching valve of 10-, 11- the
Three switching valves, the 4th switching valve of 12-, the 5th switching valve of 13-, the 6th switching valve of 14-, 15- heating end, 120- hiigh pressure stage refrigeration
Agent inlet pipeline, 121- hiigh pressure stage refrigerant outlet pipeline, 122- low-pressure stage refrigerant outlet pipeline, 123- low-pressure stage refrigerant
Inlet duct, 124- hot water inlet's pipeline, 125- hot-water outlet conduits, 126- middle casing, the second circular passage 127-, 128-
Outer layer sleeve, 129- inner layer sleeve, the first annular channel 130-, the first connecting tube of 131-, the second connecting tube of 132-, 133- third
Connecting tube, the 4th connecting tube of 134-, the 5th connecting tube of 135-, the 6th connecting tube of 136-.
Specific embodiment
Following further describes the present invention with reference to the drawings.
Embodiment one
As shown in Fig. 1, Fig. 8, a kind of solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation of the present invention, including too
It is positive can heat collector 1, evaporator 2, low-pressure stage compressor 3, three double-tube heat exchangers 4, low-pressure stage throttle valve 5, high pressure stage compressor 6,
Condenser 7, hiigh pressure stage throttle valve 8, the first to the 6th switching valve 9-14.
The outlet in the first annular channel 130 in three double-tube heat exchangers 4 by pipeline sequentially pass through low-pressure stage throttle valve 5,
It is connected after evaporator 2 and low-pressure stage compressor 3 with the entrance in first annular channel 130, constitutes low-pressure refrigerant loops.
Third switching valve 11, three double-tube heat exchangers 4 and the 4th switching valve are sequentially passed through by pipeline in the outlet of water return pipeline
It is connected after 12 with the entrance of water supply pipe, constitutes low-temperature water heating circuit.
High pressure stage compressor 6, condensation are sequentially passed through by pipeline in the outlet of inner layer sleeve 129 in three double-tube heat exchangers 4
It is connected after device 7 and hiigh pressure stage throttle valve 8 with the entrance of inner layer sleeve 129, constitutes high-pressure refrigerant circuit.
The outlet of water return pipeline by pipeline sequentially after the 5th switching valve 13, condenser 7 and the 6th switching valve 14 with
The entrance of water supply pipe is connected, and constitutes high-temperature-hot-water circuit.
The outlet of the second circular passage 127 in three double-tube heat exchangers 4 by pipeline after the 4th switching valve 12 with confession
Water inlet is connected；The entrance of the second circular passage 127 in three double-tube heat exchangers 4 is by pipeline after third switching valve 11
It is connected with backwater outlet.
The outlet of solar thermal collector 1 is connected after the second switching valve 10 with water feed inlet by pipeline；Solar energy
The entrance of heat collector 1 is connected after the first switching valve 9 with backwater outlet by pipeline.Water return pipeline, the first switching valve 9,
Solar thermal collector 1, the second switching valve 10 and water supply pipe are sequentially communicated by pipeline, constitute solar heat water loop.
In triple channel double-tube heat exchanger 4, first annular channel 130 is formed between inner layer sleeve 129 and middle casing 126,
The second circular passage 127 is formed between middle casing 126 and outer layer sleeve 128, circulation hiigh pressure stage refrigeration in inner layer sleeve 129
Agent, circulate in first annular channel 130 low-pressure stage refrigerant, and circulate hot water in the second circular passage 127.
As shown in fig. 6, the quantity for the triple channel casing being parallel to each other is 2 in the triple channel double-tube heat exchanger 4 of parallel arrangement
Root or more.
Three parallel double-tube heat exchanger structures are as follows: every three casings are straight, and the cloth that is parallel to each other between three casings
It sets.In the left side of triple channel double-tube heat exchanger 4, hiigh pressure stage refrigerant inlet pipeline 120 is connected with the first connecting tube 131, the
The inner layer sleeve 129 of three casings parallel with every is connected one connecting tube 131 respectively again；On right side, every parallel three sets
The inner layer sleeve 129 of pipe is connected with the 6th connecting tube 136 respectively, the 6th connecting tube 136 again with hiigh pressure stage refrigerant outlet 121
Pipeline is connected.On right side, low-pressure stage refrigerant inlet pipeline 123 is connected with the 5th connecting tube 135, the 5th connecting tube 135
The first annular channel 130 of three casings parallel with every is connected respectively again；In left side, the first of every three casings in parallel
Circular passage 130 is connected with the second connecting tube 132 respectively, the second connecting tube 132 again with low-pressure stage refrigerant outlet pipeline 122
It is connected.In left side, hot water inlet's pipeline 124 is connected with third connecting tube 133, third connecting tube 133 again respectively with every
Second circular passage 127 of three parallel casings is connected；On right side, the second circular passage 127 of every three parallel casings
It is connected respectively with the 4th connecting tube 134, the 4th connecting tube 134 is connected with hot-water outlet conduits 125 again.
As shown in figure 8, forming the first ring between inner layer sleeve 129 and middle casing 126 in triple channel double-tube heat exchanger 4
Shape channel 130 forms the second circular passage 127 between middle casing 126 and outer layer sleeve 128.In first annular channel 130 only
The low-pressure stage that can circulate refrigerant；Inner layer sleeve 129 and the second circular passage 127 can be there are two types of circulation styles, the first is interior
Circulate hiigh pressure stage refrigerant in layer casing 129, and circulate hot water in the second circular passage 127；Second is flowed in inner layer sleeve 129
Lead to hot water, circulate hiigh pressure stage refrigerant in the second circular passage 127.The first used in the present embodiment description, but be not limited to
This is a kind of.
Embodiment two
It is wherein the same as example 1 or corresponding components is using appended drawing reference corresponding with embodiment one.For simplicity,
The distinctive points of embodiment two Yu embodiment one are only described.
In the triple channel double-tube heat exchanger 4 of snakelike arrangement, triple channel casing is arranged using an inflection or multiple inflection cloth
The structure set.As shown in fig. 7, using the form that four inflection are arranged as structural schematic diagram.
Triple channel double-tube heat exchanger 4 is using parallel arrangement or snakelike arrangement.But it is not limited to both the above form.
A kind of solar energy synergy heat pump system of the present invention is divided by system running pattern, including one stage of compression heat pump heating system
System, two stages of compression heat pump heating system, solar thermal collector and the heat pump united heating system of one stage of compression, solar thermal collector with
The heat pump united heating system of two stages of compression.
One stage of compression heat pump heating system is made of low-pressure refrigerant loops and low-temperature water heating circuit.Two stages of compression heat pump
Heating system is made of low-pressure refrigerant loops, high-pressure refrigerant circuit and high-temperature-hot-water circuit.Solar thermal collector and one
Grade compressing hot pump joint heating system is made of low-pressure refrigerant loops and low-temperature water heating circuit, solar heat water loop.Too
Positive energy heat collector and the heat pump united heating system of two stages of compression are by low-pressure refrigerant loops, high-pressure refrigerant circuit and Gao Wenre
Water loop, solar heat water loop are constituted.
Outdoor temperature it is higher, without solar radiation or when extremely weak solar radiation, using one stage of compression heat pump heating operation mould
Formula, refrigerant suction heat in evaporator 2, becomes steam, becomes high temperature and high pressure steam by the compression of compressor 3, and pass through three
Double-tube heat exchanger 4 transfers heat in water, heats for user；Outdoor temperature it is lower, without solar radiation or solar radiation pole
When weak, using two stages of compression heat pump heating operation mode, the heat of refrigerant suction in evaporator 2, low-pressure stage compressor 3 and high
Compressor 6 of arbitrarily downgrading acting is transmitted to condenser 7 jointly, is transferred heat in water by condenser 7, heats for user；In outdoor
Temperature is higher, when having solar radiation or stronger solar radiation, using solar thermal collector 1 and the heat pump united heating fortune of one stage of compression
Row mode, heat source consist of two parts, and a part is one stage of compression heat pump heating system, and another part is solar energy heating system
System, one stage of compression heat pump heating system absorbs heat by evaporator 2 and 3 work of low-pressure stage compressor is transmitted to three double-tube heat exchangers
4, and transferred heat in water by three double-tube heat exchangers 4 and heated to user, solar thermal collection system is by solar thermal collector 1
It absorbs solar radiation and directly heats the water in pipeline to user's heating；Outdoor temperature it is lower, have solar radiation or sun spoke
When penetrating stronger, using solar thermal collector 1 and the heat pump united heating operation mode of two stages of compression, heat source consists of two parts, and one
Part is two stages of compression heat pump heating system, and another part is solar thermal collection system, and two stages of compression heat pump heating system is by steaming
Hair device 2 absorbs heat, 3 work done of low-pressure stage compressor and 6 work done of high pressure stage compressor and is transmitted to condenser 7 jointly, passes through condenser 7
It transfers heat in water and heats to user, solar thermal collection system absorbs solar radiation by solar thermal collector 1 and directly adds
Water in heat pipeline heats to user.
Four kinds of operational modes are described further below:
(1) one stage of compression heat pump heating operation mode.Solid line indicates the structural relation of the system: low temperature liquid refrigerant in Fig. 2
After heat absorption becomes steam in evaporator 2, becomes middle pressure medium temperature steam after compressing into low-pressure stage compressor 3, enter back into three sets
It is condensed into liquid refrigerant after the lower water heat exchange of temperature in heat exchange of heat pipe 4 and user's return pipe, into 5 section of low-pressure stage throttle valve
Temperature, pressure reduction is again introduced into evaporator 2 after stream；User's return water is changed by third switching valve 11 into three double-tube heat exchangers 4
Temperature increases after heat, enters water supply pipe by the 4th switching valve 12 for user's heating.
The implementation method of above-mentioned one stage of compression heat pump heating operation mode is as follows:
When outdoor temperature is higher, without solar radiation or when extremely weak solar radiation, third, the 4th switching valve 11,12 are opened, first,
The second, the five, the 6th switching valves 9,10,13,14 are closed, one stage of compression heat pump heating system operation in device.
(2) two stages of compression heat pump heating operation mode.Solid line indicates the structural relation of the system: low temperature liquid system in Fig. 3
Cryogen is absorbed heat in evaporator 2 after becoming steam, is become medium pressure steam after compressing into low-pressure stage compressor 3, is entered back into
Three double-tube heat exchangers 4 carry out heat exchange with hiigh pressure stage refrigerant and are condensed into liquid refrigerant, throttle and cool down into low-pressure stage throttle valve 5
It is again introduced into evaporator 2 and evaporates after decompression；Hiigh pressure stage refrigerant and low-pressure stage refrigerant heat exchanger in three double-tube heat exchangers 4 steam
Hair becomes gaseous refrigerant, enters back into after high pressure stage compressor 6 compresses and becomes high temperature and high pressure steam, into condensing in condenser 7
Heat release, after becoming high pressure liquid refrigerant, temperature, pressure is reduced after the throttling of hiigh pressure stage throttle valve 8, returns three sleeve heat exchanges
It absorbs heat and evaporates in device 4；User's return water enters 7 endothermic temperature of condenser by switching valve 13 and increases, and is entered by switching valve 14 and is supplied
Water lines are user's heating.
The implementation method of above-mentioned two stages of compression heat pump heating operation mode is as follows:
When outdoor temperature is lower, without solar radiation or when extremely weak solar radiation, the five, the 6th switching valves 13,14 are opened, first,
Second, third, the 4th switching valve 9,10,11,12 close, two stages of compression heat pump heating system operation in device.
(3) solar thermal collector and the heat pump united heating operation mode of one stage of compression.Solid line indicates the system in Fig. 4
Structural relation: low temperature liquid refrigerant is absorbed heat in evaporator 2 after becoming steam, is become after compressing into low-pressure stage compressor 3
Middle pressure medium temperature steam is condensed into liquid system after entering back into three double-tube heat exchangers 4 and the lower water heat exchange of temperature in user's return pipe
Cryogen, temperature, pressure reduction is again introduced into evaporator 2 after throttling into low-pressure stage throttle valve 5；The outlet point of user's water return pipeline
For two-way, it is that temperature increases after user's return water enters the heat exchange of three double-tube heat exchangers 4 by switching valve 11 all the way, passes through switching valve 12
It is user's heating into user 15；Another way is that user's return water passes through switching valve 9 into the absorption sunlight spoke of solar thermal collector 1
The water directly heated in pipeline is penetrated, then heating 15 is entered by switching valve 10 and is heated for user.
The implementation method of above-mentioned solar thermal collector and the heat pump united heating operation mode of one stage of compression is as follows:
When outdoor temperature is high, have solar radiation or stronger solar radiation when, the first, second, third, fourth switching valve 9,10,11,
12 open, and the five, the 6th switching valves 13,14 are closed, solar thermal collector and the heat pump united heating system of one stage of compression in device
Operation.
(4) solar thermal collector and the heat pump united heating operation mode of two stages of compression.Solid line indicates the system in Fig. 5
Structural relation: low temperature liquid refrigerant is absorbed heat in evaporator 2 after becoming steam, is become after compressing into low-pressure stage compressor 3
Medium pressure steam, enters back into three double-tube heat exchangers 4 and hiigh pressure stage refrigerant carries out heat exchange and is condensed into liquid refrigerant, and entrance is low
It is again introduced into evaporator 2 and evaporates after throttle valve 5 of arbitrarily downgrading throttling decrease temperature and pressure；Hiigh pressure stage refrigerant in three double-tube heat exchangers 4
Become gaseous refrigerant with the evaporation of low-pressure stage refrigerant heat exchanger, enters back into after high pressure stage compressor 6 compresses and become high temperature and pressure steaming
Vapour, into heat release is condensed in condenser 7, after becoming high pressure liquid refrigerant, temperature, pressure drops after the throttling of hiigh pressure stage throttle valve 8
It is low, return evaporation of absorbing heat in three double-tube heat exchangers 4；The outlet of user's water return pipeline is divided into two-way, is from water circulating pump 19 all the way
User's return water of outflow enters 7 endothermic temperature of condenser by switching valve 13 and increases, and is into water supply pipe by switching valve 14
User's heating；Another way, which is user's return water by switching valve 9, to be entered solar thermal collector 1 and absorbs solar radiation and directly heat pipe
Water in road, then water supply pipe is entered for user's heating by switching valve 10.
The implementation method of above-mentioned solar thermal collector 1 and the heat pump united heating operation mode of two stages of compression is as follows:
When outdoor temperature is low, have solar radiation or stronger solar radiation when, first, second, the five, the 6th switching valves 9,10,13,
14 open, and third, the 4th switching valve 11,12 are closed, solar thermal collector and the heat pump united heating system of two stages of compression in device
Operation.
Although being particularly shown and describing the present invention, those skilled in the art referring to its exemplary embodiment
It should be understood that in the case where not departing from the spirit and scope of the present invention defined by claim form can be carried out to it
With the various changes in details.
Claims (5)
1. a kind of solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation, it is characterised in that: including solar energy collection
Hot device (1), evaporator (2), low-pressure stage compressor (3), three double-tube heat exchangers (4), low-pressure stage throttle valve (5), hiigh pressure stage compression
Machine (6), condenser (7), hiigh pressure stage throttle valve (8) and the first to the 6th switching valve (9-14)；
Low-pressure stage throttle valve is sequentially passed through by pipeline in the outlet in the first annular channel (130) in three double-tube heat exchangers (4)
(5), evaporator (2) and low-pressure stage compressor (3) are connected with the entrance of first annular channel (130) afterwards；
High pressure stage compressor (6), cold is sequentially passed through by pipeline in the outlet of inner layer sleeve (129) in three double-tube heat exchangers (4)
Condenser (7) and hiigh pressure stage throttle valve (8) are connected with the entrance of inner layer sleeve (129) afterwards；
The outlet of the second circular passage (127) in three double-tube heat exchangers (4) by pipeline after the 4th switching valve (12) with
Water feed inlet is connected；The entrance of the second circular passage (127) in three double-tube heat exchangers (4) is switched by pipeline by third
Valve (11) is connected with backwater outlet afterwards；
The outlet of condenser (7) is connected after the 6th switching valve (14) with water feed inlet by pipeline；Condenser (7) enter
Mouth is connected after the 5th switching valve (13) with backwater outlet by pipeline；
The outlet of solar thermal collector (1) is connected after the second switching valve (10) with water feed inlet by pipeline；Solar energy
The entrance of heat collector (1) is connected after the first switching valve (9) with backwater outlet by pipeline.
2. a kind of solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation according to claim 1, special
Sign is: described in being formed in the triple channel double-tube heat exchanger (4), between the inner layer sleeve (129) and middle casing (126)
First annular channel (130) forms second circular passage (127) between middle casing (126) and outer layer sleeve (128),
Circulate low-pressure stage refrigerant in the first annular channel (130), and circulate hiigh pressure stage refrigerant in the inner layer sleeve (129),
Tell the hot water that circulates in the second circular passage (127).
3. a kind of solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation according to claim 2, special
Sign is: the triple channel double-tube heat exchanger (4) is using parallel arrangement or snakelike arrangement.
4. a kind of solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation according to claim 3, special
Sign is: in the triple channel double-tube heat exchanger (4) of the parallel arrangement, the quantity of the triple channel casing being parallel to each other be 2 and
More than.
5. a kind of solar energy synergy multi-mode heating combined equipment based on compressing hot pump circulation according to claim 4, special
Sign is: in the triple channel double-tube heat exchanger (4) of the snakelike arrangement, triple channel casing is arranged using an inflection or is repeatedly returned
The structure that plaiting is set.
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| CN115183486A (en) * | 2022-06-24 | 2022-10-14 | 青岛海尔空调电子有限公司 | Overlapping type heat pump system combining solar energy and control method thereof |
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