CN106440459A - Auxiliary heating enthalpy-increasing heat pump system and working mode thereof - Google Patents

Auxiliary heating enthalpy-increasing heat pump system and working mode thereof Download PDF

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Publication number
CN106440459A
CN106440459A CN201610947398.9A CN201610947398A CN106440459A CN 106440459 A CN106440459 A CN 106440459A CN 201610947398 A CN201610947398 A CN 201610947398A CN 106440459 A CN106440459 A CN 106440459A
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China
Prior art keywords
interface
heat exchanger
coolant
enthalpy
heat
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CN201610947398.9A
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Chinese (zh)
Inventor
杨杰
施永康
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Guangdong Gaoermei Refrigeration Equipment Co Ltd
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Guangdong Gaoermei Refrigeration Equipment Co Ltd
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Priority to CN201610947398.9A priority Critical patent/CN106440459A/en
Publication of CN106440459A publication Critical patent/CN106440459A/en
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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
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B40/00Subcoolers, desuperheaters or superheaters
    • F25B40/02Subcoolers
    • 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
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • 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
    • F25B47/00Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • 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
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25B2313/00Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/021Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit
    • 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
    • F25B2313/00Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • 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
    • F25B2400/00General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/24Storage receiver heat
    • 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
    • F25B2500/00Problems to be solved
    • F25B2500/31Low ambient temperatures

Abstract

The invention discloses an auxiliary heating enthalpy-increasing heat pump system. The auxiliary heating enthalpy-increasing heat pump system comprises the following components of a compressor, a four-way valve, a heat storage tank, a condenser, a supercooling heat exchanger, a liquid-spraying enthalpy-increasing heat exchanger, an auxiliary heating enthalpy-increasing heat exchanger, an outdoor evaporator, a reservoir, a first stop valve, an enthalpy-increasing stop valve, a first throttling component, a second throttling component, a third throttling component, an enthalpy-increasing throttling component, a first check valve and a second check valve, wherein the four way valve comprises four connectors of D, S, E and C; the liquid-spraying enthalpy-increasing heat exchanger comprises four connectors of a, b, c and d; the supercooling heat exchanger comprises four connectors of e, f, g and h; the auxiliary heating enthalpy-increasing heat exchanger comprises four connectors of i, j, m and n; the condenser is arranged in the heat storage tank; and the above components are connected to form a main flow path and an enthalpy-increasing flow path.

Description

A kind of auxiliary hot enthalpy increasing heat pump system and working method
Technical field
The present invention relates to the technical field of air-conditioning heat pump, refer in particular to a kind of auxiliary hot enthalpy increasing heat pump system and working method.
Background technology
The operation principle of air energy heat pump product sketches the heat for grade low in absorption air, compresses to make through compressor Heat or water heating, product efficiency is limited by ambient temperature, and wherein, ambient temperature is higher, and product gets over energy-conservation;Ambient temperature is lower, Product efficiency declines therewith.Existing product cannot be promoted in northwest and the Northeast, because, under low temperature environment, unit air is carried The heat coming is less, and refrigerating system coolant cannot get enough heat of vaporization so that system refrigerant circulation declines, compressor pressure Contracting is bigger than becoming, and capacity uprises, and product causes low pressure and exhaust high temperature protection fault when running.
Secondly, existing spray liquid enthalpy gain system is to increase circulation stream coolant quantity, and system is by one point of condensator outlet coolant For two, a part of coolant enters compressor by spray liquid enthalpy gain branch road, and another coolant flows to outdoor evaporator to carry out heat absorption and steam Send out, and adopt in this way, refrigeration system heating capacity can be led to diminish, efficiency step-down.
For this reason, it may be necessary to a kind of have the advantages that the auxiliary hot increasing of multiple increasing enthalpy, multiple one kind that is supercool, being applied to ultra-low temperature surroundings Enthalpy heat pump.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, provide a kind of auxiliary hot enthalpy increasing heat pump system and work side Formula.
In order to realize above-mentioned purpose, the auxiliary hot enthalpy increasing heat pump system of one kind provided by the present invention, include with lower component: Compressor, cross valve, heat storage tank, condenser, excessively cold heat exchanger, spray liquid enthalpy gain heat exchanger, auxiliary hot increasing enthalpy heat exchanger, outdoor evaporation Device, reservoir, the first stop valve, increasing enthalpy stop valve, first throttle part, the second throttle part, the 3rd throttle part, increasing enthalpy section Stream unit, the first check valve and the second check valve, wherein, described cross valve contains tetra- interfaces of D, S, E, C, described spray liquid enthalpy gain Heat exchanger contains tetra- interfaces of a, b, c, d, and described cold heat exchanger of crossing contains tetra- interfaces of e, f, g, h, described auxiliary hot increasing enthalpy heat exchange Device contains tetra- interfaces of i, j, m, n;In described condenser installation and heat storage tank;Above-mentioned part connection constitutes primary flow path and increasing enthalpy Stream.
The connection composition of described primary flow path:Described cross valve interface D is connected with compressor outlet, described cross valve interface C is connected with the condenser in heat storage tank, described first check valve be in parallel with the second throttle part be connected and parallel connection after two End is connected with condenser and cold heat exchanger interface e excessively respectively, and wherein, described first check valve input is connected with condenser And its outfan is connected with crossing cold heat exchanger interface e, described first stop valve and first throttle part are in parallel connection and simultaneously After connection, two ends are connected with cross valve interface S and cold heat exchanger interface h excessively respectively, described cold heat exchanger interface g and compressor excessively Import is connected, and the described cold heat exchanger interface f that crosses is connected with reservoir, described reservoir and spray liquid enthalpy gain heat exchanger interface d Be connected, described 3rd throttle part be in parallel with the second check valve be connected and parallel connection after two ends respectively with spray liquid enthalpy gain heat exchanger Interface c is connected with outdoor evaporator, and wherein, described second check valve outfan is connected with spray liquid enthalpy gain heat exchanger interface c And its input is connected with outdoor evaporator, described auxiliary hot increasing enthalpy heat exchanger interface i and interface j respectively with outdoor evaporator and Cross valve interface E is connected.
The connection composition of increasing enthalpy stream:Described increasing enthalpy stop valve two ends are connected with reservoir and increasing enthalpy throttle part respectively Connect, described increasing enthalpy throttle part is connected with spray liquid enthalpy gain heat exchanger interface a, described spray liquid enthalpy gain heat exchanger interface b and compression Machine is connected.
Further, it is provided with heat transferring medium in described heat storage tank.
Further, hot import and auxiliary heat outlet supplemented by described auxiliary hot increasing enthalpy heat exchanger interface m and interface n difference.
A kind of working method of auxiliary hot enthalpy increasing heat pump system, described auxiliary hot enthalpy increasing heat pump system includes room temperature and heats mould Formula, low-temperature heating pattern, refrigeration defrost pattern.
The working method of described room temperature heating mode:The coolant of High Temperature High Pressure flows into cross valve interface D by compressor, then Flow to the condenser in heat storage tank by cross valve interface C, heat transferring medium in condenser with heat storage tank for the coolant carries out heat exchange, Coolant after heat release cooling then flows to the first check valve by condenser, then flows to cold heat exchanger interface by the first check valve E, coolant heat release cooling again in cold heat exchanger excessively, the coolant after heat release cooling flows to reservoir by hot and cold heat exchanger interface f, Then spray liquid enthalpy gain heat exchanger interface d is flowed to by reservoir, coolant then flows to the 3rd throttling by spray liquid enthalpy gain heat exchanger interface c Part, the coolant after throttling flows to outdoor evaporator through the 3rd throttle part, and coolant is after outdoor evaporator interior suction thermal evaporation Flow to auxiliary hot increasing enthalpy heat exchanger interface i, then cross valve interface E is flowed to by auxiliary hot increasing enthalpy heat exchanger interface j, coolant is then by four Port valve interface S flows to first throttle part, and after throttling, coolant flowed to cold heat exchanger interface h, and wherein, this coolant changes supercool Carry out heat exchange and absorb heat with from the coolant crossing cold heat exchanger interface e inflow in hot device, the coolant after heat absorption evaporation is by mistake Cold heat exchanger interface g flows to compressor.
The working method of described low-temperature heating pattern:The coolant of High Temperature High Pressure flows into cross valve interface D by compressor, then Condenser in heat storage tank is flowed into by cross valve interface C, coolant carries out heat friendship with the heat transferring medium in heat storage tank in condenser Change, after heat release cooling, coolant then flows to the first check valve by condenser, then flowed to cold heat exchanger by the first check valve and connects Mouthful e, coolant flows to reservoir by crossing cold heat exchanger interface f after crossing in cold heat exchanger heat release cooling again, then by reservoir Flow to the 3rd throttle part, the coolant through throttling flows to outdoor evaporator by the 3rd throttle part, and coolant is in outdoor evaporator Heat absorption evaporation, wherein, coolant can absorb shortage of heat at low ambient temperatures so that in outdoor evaporator, coolant all evaporates, The evaporation unevaporated coolant of Buddhist monk flows to auxiliary hot increasing enthalpy heat exchanger interface i by outdoor evaporator, and still unevaporated coolant is in auxiliary warm Carry out heat exchange with auxiliary heat, the coolant after heat absorption evaporation then flows to four by auxiliary hot increasing enthalpy heat exchanger interface j in increasing enthalpy heat exchanger Port valve interface E, coolant then flows to first throttle part by cross valve interface S, and the coolant after throttling is by first throttle part Flow direction filter heat exchanger interface h, wherein, this coolant cross cold heat exchanger in from cross cold heat exchanger interface e inflow coolant enter Row heat exchange simultaneously absorbs heat, and after heat absorption evaporation, coolant flows to compressor by crossing cold heat exchanger interface g;Secondly, when auxiliary heat When not enough, normally run for guarantee system, on the basis of above-mentioned stream, open the increasing enthalpy stop valve on increasing enthalpy stream, coolant Be divided into two after reservoir branch road, and a branch road is above-mentioned primary flow path, and another branch road is increasing enthalpy stream, wherein, on increasing enthalpy stream Coolant increasing enthalpy throttle part is flowed to by increasing enthalpy stop valve, the coolant after throttling flows to spray liquid enthalpy gain by increasing enthalpy throttle part and changes Hot device interface a, coolant after spray liquid enthalpy gain heat exchanger interior suction thermal evaporation, heat absorption evaporation for the coolant on increasing enthalpy stream is increased by hydrojet Enthalpy heat exchanger interface b flows back to compressor.
The working method of described refrigeration defrost pattern:The coolant of High Temperature High Pressure flows to cross valve interface D by compressor, then Auxiliary hot increasing enthalpy heat exchanger interface j is flowed to by cross valve interface E, coolant then flows to outdoor steaming by auxiliary hot increasing enthalpy heat exchanger interface i Send out device, coolant heat release cooling in outdoor evaporator, after heat release cooling, spray liquid enthalpy gain heat exchanger interface is flowed to by the second check valve C, coolant then flows to reservoir by spray liquid enthalpy gain heat exchanger interface d, then flows to cold heat exchanger interface f by reservoir, cold Matchmaker then flows to the second throttle part by cold heat exchanger interface e excessively, and the coolant after throttling flows to the condenser in heat storage tank, cold Matchmaker carries out heat exchange with the heat transferring medium in heat storage tank in condenser, flows to cross valve by condenser and connect after coolant heat absorption evaporation Mouth C, then flows to the first stop valve by cross valve interface S, coolant then flowed to cold heat exchanger interface h by the first stop valve, Then compressor is flowed back to by cold heat exchanger interface g excessively.
Further, in described low-temperature heating pattern, described coolant followed by flows into through the heat absorption evaporation of described outdoor evaporator Described auxiliary hot increasing enthalpy heat exchanger absorbs described auxiliary heat and continues evaporation, and described auxiliary hot increasing enthalpy heat exchanger realizes heat pump is increased Enthalpy function.
The present invention adopts above-mentioned scheme, and its advantage is that improving system coolant by auxiliary hot increasing enthalpy heat exchanger follows Circular rector and assist by spray liquid enthalpy gain heat exchanger to adjust refrigerant circulation, thus reducing compression ratio and delivery temperature so that auxiliary Hot enthalpy increasing heat pump system can be run in normal table under ultra-low temperature surroundings;Secondly, by arranging auxiliary hot increasing enthalpy heat exchanger, make coolant Absorbed heat by outdoor evaporator as far as possible and evaporate, by arranging cold heat exchanger, it is possible to decrease enter the condensation of outdoor evaporator coolant Temperature it is also possible to coolant before making to flow back to compressor heats again crossing cold heat exchanger interior suction and receive heat storage tank outlet coolant waste heat, Thus improving heating capacity and the Energy Efficiency Ratio of refrigeration system;In addition, being used for the change to outdoor evaporator by absorbing heat storage tank heat Frost, improves defrost heat supply amount, thus realizing quick defrost.
Brief description
Fig. 1 is the auxiliary hot enthalpy increasing heat pump system schematic of the present invention.
Fig. 2 is the room temperature heating mode schematic diagram of the present invention.
Fig. 3 is the low-temperature heating pattern schematic diagram of the present invention.
Fig. 4 is the refrigeration defrost pattern schematic diagram of the present invention.
Wherein, 1- compressor, 2- cross valve, 3- heat storage tank, 31- condenser, 4- crosses cold heat exchanger, 5- spray liquid enthalpy gain heat exchange Device, the auxiliary hot increasing enthalpy heat exchanger of 6-, 7- outdoor evaporator, 8- reservoir, 91- first stop valve, 92- increasing enthalpy stop valve, 101- One throttle part, 102- second throttle part, 103- the 3rd throttle part, 104- increasing enthalpy throttle part, 111- first check valve, 112- second check valve.
Specific embodiment
With reference to specific embodiment, the present invention is further illustrated.
Referring to shown in accompanying drawing 1, in the present embodiment, a kind of auxiliary hot enthalpy increasing heat pump system, includes with lower component:Compressor 1st, cross valve 2, heat storage tank 3, condenser 31, excessively cold heat exchanger 4, spray liquid enthalpy gain heat exchanger 5, auxiliary hot increasing enthalpy heat exchanger 6, outdoor steaming Send out device 7, reservoir 8, the first stop valve 91, increasing enthalpy stop valve 92, first throttle part 101, the second throttle part the 102, the 3rd Throttle part 103, increasing enthalpy throttle part 104, the first check valve 111, the second check valve 112, described cross valve 2 contain D, S, E, Tetra- interfaces of C, described spray liquid enthalpy gain heat exchanger 5 contain tetra- interfaces of a, b, c, d, and described cold heat exchanger 4 of crossing contains e, f, g, h tetra- Individual interface, described auxiliary hot increasing enthalpy heat exchanger 6 contains tetra- interfaces of i, j, m, n, in described condenser 31 installation and heat storage tank 3;Institute State in heat storage tank 3 and be provided with heat transferring medium.Above-mentioned part connection constitutes primary flow path and increasing enthalpy stream.
The connection composition of primary flow path:Described cross valve 2 interface D is connected with compressor 1 outlet, described cross valve 2 interface C It is connected with the condenser 31 in heat storage tank 3, described first check valve 111 is in parallel with the second throttle part 102 and is connected and simultaneously Two ends after connection are connected with condenser 31 and cold heat exchanger 4 interface e excessively respectively, wherein, described first check valve 111 input It is connected with condenser 31 and its outfan is connected with crossing cold heat exchanger 4 interface e, described first stop valve 91 and first throttle Part 101 be in parallel connection and parallel connection after two ends respectively with cross valve 2 interface S and mistake cold heat exchanger 4 interface h be connected, described Cross cold heat exchanger 4 interface g to be connected with compressor 1 import, the described cold heat exchanger 4 interface f that crosses is connected with reservoir 8, described Reservoir 8 is connected with spray liquid enthalpy gain heat exchanger 5 interface d, and described 3rd throttle part 103 and the second check valve 112 are in parallel After connection and parallel connection, two ends are connected with spray liquid enthalpy gain heat exchanger 5 interface c and outdoor evaporator 7 respectively, and wherein, described second is single It is connected with spray liquid enthalpy gain heat exchanger 5 interface c to valve 112 outfan and its input is connected with outdoor evaporator 7, described auxiliary Hot increasing enthalpy heat exchanger 6 interface i is connected with outdoor evaporator 7 and cross valve 2 interface E respectively with interface j.The connection group of stream Become:Described increasing enthalpy stop valve 92 is connected with reservoir 8 and increasing enthalpy throttle part 104 respectively, described increasing enthalpy throttle part 104 with Spray liquid enthalpy gain heat exchanger 5 interface a is connected, and described spray liquid enthalpy gain heat exchanger 5 interface b is connected with compressor 1.By above-mentioned portion The connection composition of part, constitutes auxiliary hot enthalpy increasing heat pump system.
In the present embodiment, hot import and auxiliary heat outlet supplemented by auxiliary hot increasing enthalpy heat exchanger 6 interface m and interface n difference, its In, auxiliary hot increasing enthalpy can provide heat using the auxiliary thermal source such as heating installation, solar energy, after making to absorb heat through outdoor evaporator 7 vaporizer Still unevaporated coolant continues heat absorption evaporation in auxiliary heat exchanger, improves refrigerant evaporation amount, thus improving system refrigerant circulation Amount.
Auxiliary hot enthalpy increasing heat pump system is passed through to be provided with spray liquid enthalpy gain heat exchanger 5 before outdoor evaporator 7, when auxiliary hot increasing enthalpy is because of heat When amount fluctuation increasing enthalpy is limited, refrigerating system coolant circular flow can be improved by way of spray liquid enthalpy gain;Secondly, by cold Cold heat exchanger 4 was set after condenser 31, using through absorbing warp in cold heat exchanger 4 with the coolant that auxiliary hot increasing enthalpy heat exchanger 6 flows out The coolant heat flowing out in condenser 31, thus realize supercool to coolant;Secondly, when starting increasing enthalpy stream, can be in hydrojet In increasing enthalpy heat exchanger 5, supercool again to primary flow path coolant by the coolant of increasing enthalpy stream, by dual supercool by way of, improve Coolant degree of supercooling, thus improve heating capacity and Energy Efficiency Ratio;In addition, auxiliary hot enthalpy increasing heat pump system is in defrost, by absorbing accumulation of heat Case 3 heat is used for defrost, thus improving defrost heat supply amount, realizes the effect of quick defrost.
Auxiliary hot enthalpy increasing heat pump system includes room temperature heating mode, low-temperature heating pattern, refrigeration defrost pattern, in conjunction with tool Body accompanying drawing illustrates to its pattern.
Room temperature heating mode:Referring to shown in accompanying drawing 2, when outdoor environment temperature is higher than setting value, system start-up room temperature system Heat pattern, by stream control.Its working method:The coolant of High Temperature High Pressure flows into cross valve 2 interface D by compressor 1, then by Cross valve 2 interface C flows to the condenser 31 in heat storage tank 3, and heat transferring medium in condenser 31 with heat storage tank 3 for the coolant carries out heat Exchange, the coolant after heat release cooling then flows to the first check valve 111 by condenser 31, is then flowed to by the first check valve 111 Cross cold heat exchanger 4 interface e, coolant heat release cooling again in cold heat exchanger 4 excessively, the coolant after heat release cooling is by hot and cold heat exchanger Interface f flows to reservoir 8, then flows to spray liquid enthalpy gain heat exchanger 5 interface d by reservoir 8, coolant is then by spray liquid enthalpy gain heat exchange Device 5 interface c flows to the 3rd throttle part 103, and the coolant after throttling flows to outdoor evaporator 7 through the 3rd throttle part 103, cold Matchmaker flows to auxiliary hot increasing enthalpy heat exchanger 6 interface i after outdoor evaporator 7 interior suction thermal evaporation, then by auxiliary hot increasing enthalpy heat exchanger 6 interface J flows to cross valve 2 interface E, and coolant then flows to first throttle part 101 by cross valve 2 interface S, coolant flow direction after throttling Cross cold heat exchanger 4 interface h, wherein, this coolant is carried out with from the coolant crossing cold heat exchanger 4 interface e inflow in cold heat exchanger 4 excessively Heat exchange simultaneously absorbs heat, and the coolant after heat absorption evaporation flows to compressor 1 by crossing cold heat exchanger 4 interface g;By above-mentioned stream Circular flow it is achieved that under room temperature operating mode the heating of auxiliary hot enthalpy increasing heat pump system.
Low-temperature heating pattern:Referring to shown in accompanying drawing 3, when outdoor environment temperature is less than setting value, auxiliary hot enthalpy increasing heat pump system System starts low-temperature heating pattern.Its working method:The coolant of High Temperature High Pressure flows into cross valve 2 interface D by compressor 1, then by Cross valve 2 interface C flows into the condenser 31 in heat storage tank 3, and coolant is carried out with the heat transferring medium in heat storage tank 3 in condenser 31 Heat exchange, after heat release cooling, coolant then flows to the first check valve 111 by condenser 31, is then flowed to by the first check valve 111 Cross cold heat exchanger 4 interface e, coolant cross cold heat exchanger 4 in again heat release cooling after by cross cold heat exchanger 4 interface f flow to liquid storage Device 8, then flows to the 3rd throttle part 103 by reservoir 8, and the coolant through throttling flows to outdoor steaming by the 3rd throttle part 103 Send out device 7, in outdoor evaporator 7 interior suction thermal evaporation, wherein, coolant can absorb shortage of heat at low ambient temperatures so that room for coolant In outer vaporizer 7, coolant all evaporates, and has evaporated the unevaporated coolant of Buddhist monk and has flowed to auxiliary hot increasing enthalpy heat exchanger by outdoor evaporator 7 6 interface i, still unevaporated coolant carries out heat exchange in auxiliary hot increasing enthalpy heat exchanger 6 with auxiliary heat, and the coolant after heat absorption evaporation is then Cross valve 2 interface E is flowed to by auxiliary hot increasing enthalpy heat exchanger 6 interface j, coolant then flows to first throttle part by cross valve 2 interface S 101, the coolant after throttling flows to filtration heat exchanger interface h by first throttle part 101, and wherein, this coolant is in supercool heat exchange Carry out heat exchange and absorb heat with from the coolant crossing cold heat exchanger 4 interface e inflow in device 4, after heat absorption evaporation, coolant is by supercool Heat exchanger 4 interface g flows to compressor 1;Secondly, when auxiliary hot shortage of heat, normally run for guarantee system, in above-mentioned stream On the basis of, open the increasing enthalpy stop valve 92 on increasing enthalpy stream, coolant is divided into two branch road after reservoir 8, a branch road is above-mentioned Primary flow path, another branch road is increasing enthalpy stream, and wherein, the coolant on increasing enthalpy stream flows to increasing enthalpy throttle part by increasing enthalpy stop valve 92 104, the coolant after throttling flows to spray liquid enthalpy gain heat exchanger 5 interface a, the coolant on increasing enthalpy stream by increasing enthalpy throttle part 104 Coolant after spray liquid enthalpy gain heat exchanger 5 interior suction thermal evaporation, heat absorption evaporation flows back to compressor by spray liquid enthalpy gain heat exchanger 5 interface b 1;By the circulation of the increasing enthalpy stream of above-mentioned primary flow path, improve refrigerant circulation using auxiliary hot increasing enthalpy and spray liquid enthalpy gain, pass through Cross cold heat exchanger 4 and spray liquid enthalpy gain heat exchanger 5 dual supercool improving coolant degree of supercooling so that auxiliary hot enthalpy increasing heat pump system exists Realize efficiently heating under ultra-low temperature surroundings.
Refrigeration defrost pattern:Referring to shown in accompanying drawing 4, when system needs heat storage tank 3 to be freezed or to outdoor evaporator 7 During defrosting, auxiliary hot enthalpy increasing heat pump system start-up refrigeration defrost pattern.Its working method:The coolant of High Temperature High Pressure is flowed by compressor 1 To cross valve 2 interface D, then auxiliary hot increasing enthalpy heat exchanger 6 interface j is flowed to by cross valve 2 interface E, coolant is then by auxiliary hot increasing enthalpy Heat exchanger 6 interface i flows to outdoor evaporator 7, and coolant is flowed to by the second check valve 112 after heat release cooling in outdoor evaporator 7 Spray liquid enthalpy gain heat exchanger 5 interface c, coolant then flows to reservoir 8 by spray liquid enthalpy gain heat exchanger 5 interface d, then by reservoir 8 Flowed to cold heat exchanger 4 interface f, coolant then flows to the second throttle part 102 by cold heat exchanger 4 interface e excessively, after throttling Coolant flows to the condenser 31 in heat storage tank 3, and coolant carries out heat exchange with the heat transferring medium in heat storage tank 3 in condenser 31, After coolant heat absorption evaporation, cross valve 2 interface C is flowed to by condenser 31, then the first stop valve 91 is flowed to by cross valve 2 interface S, Coolant then flowed to cold heat exchanger 4 interface h by the first stop valve 91, then flowed back to compressor 1 by cold heat exchanger 4 interface g excessively; By above-mentioned stream circular flow it is achieved that freezing to heat storage tank 3 or outdoor evaporator 7 being defrosted.
The embodiment of the above is only presently preferred embodiments of the present invention, and not the present invention is done with any pro forma limit System.Any those of ordinary skill in the art, without departing under technical solution of the present invention ambit, using the skill of the disclosure above Art content makes more possible variations and retouching to technical solution of the present invention, or modification is the Equivalent embodiments of the present invention. Therefore all contents without departing from technical solution of the present invention, the equivalent equivalence changes made according to the thinking of the present invention, all should be covered by In protection scope of the present invention.

Claims (5)

1. a kind of auxiliary hot enthalpy increasing heat pump system, includes with lower component:Compressor(1), cross valve(2), heat storage tank(3), condensation Device(31), cross cold heat exchanger(4), spray liquid enthalpy gain heat exchanger(5), auxiliary hot increasing enthalpy heat exchanger(6), outdoor evaporator(7), reservoir (8), the first stop valve(91), increasing enthalpy stop valve(92), first throttle part(101), the second throttle part(102), Section three Stream unit(103), increasing enthalpy throttle part(104), the first check valve(111)With the second check valve(112), wherein, described four-way Valve(2)Containing tetra- interfaces of D, S, E, C, described spray liquid enthalpy gain heat exchanger(5)Containing tetra- interfaces of a, b, c, d, described supercool change Hot device(4)Containing tetra- interfaces of e, f, g, h, described auxiliary hot increasing enthalpy heat exchanger(6)Containing tetra- interfaces of i, j, m, n, its feature exists In:Described condenser(31)Install and heat storage tank(3)Interior;Above-mentioned part connection constitutes primary flow path and increasing enthalpy stream;Described master The connection composition of stream:Described cross valve(2)Interface D and compressor(1)Outlet is connected, described cross valve(2)Interface C and storage Hot tank(3)Interior condenser(31)It is connected, described first check valve(111)With the second throttle part(102)Be in parallel connection And the two ends after parallel connection respectively with condenser(31)With cold heat exchanger excessively(4)Interface e is connected, wherein, described first check valve (111)Input and condenser(31)It is connected and its outfan and cold heat exchanger excessively(4)Interface e is connected, described first section Only valve(91)With first throttle part(101)Be in parallel connection and parallel connection after two ends respectively with cross valve(2)Interface S and supercool change Hot device(4)Interface h is connected, described cold heat exchanger excessively(4)Interface g and compressor(1)Import is connected, described cold heat exchanger excessively (4)Interface f and reservoir(8)It is connected, described reservoir(8)With spray liquid enthalpy gain heat exchanger(5)Interface d is connected, and described Three throttle parts(103)With the second check valve(112)Be in parallel connection and parallel connection after two ends respectively with spray liquid enthalpy gain heat exchanger(5) Interface c and outdoor evaporator(7)It is connected, wherein, described second check valve(112)Outfan and spray liquid enthalpy gain heat exchanger(5) Interface c is connected and its input and outdoor evaporator(7)It is connected, described auxiliary hot increasing enthalpy heat exchanger(6)Interface i and interface j Respectively with outdoor evaporator(7)And cross valve(2)Interface E is connected;The connection composition of increasing enthalpy stream:Described increasing enthalpy stop valve (92)Two ends respectively with reservoir(8)With increasing enthalpy throttle part(104)It is connected, described increasing enthalpy throttle part(104)With hydrojet Increasing enthalpy heat exchanger(5)Interface a is connected, described spray liquid enthalpy gain heat exchanger(5)Interface b and compressor(1)It is connected.
2. the auxiliary hot enthalpy increasing heat pump system of one kind according to claim 1 it is characterised in that:Described heat storage tank(3)Interior setting There is heat transferring medium.
3. the auxiliary hot enthalpy increasing heat pump system of one kind according to claim 1 it is characterised in that:Described auxiliary hot increasing enthalpy heat exchanger (6)Hot import and auxiliary heat outlet supplemented by interface m and interface n difference.
4. the working method of a kind of auxiliary hot enthalpy increasing heat pump system described in a kind of claim 1-3, described auxiliary hot enthalpy increasing heat pump system System include room temperature heating mode, low-temperature heating pattern, refrigeration defrost pattern it is characterised in that:Described room temperature heating mode Working method:The coolant of High Temperature High Pressure is by compressor(1)Flow into cross valve(2)Interface D, then by cross valve(2)Interface C flows to Heat storage tank(3)Interior condenser(31), coolant is in condenser(31)With heat storage tank(3)Interior heat transferring medium carries out heat exchange, puts Coolant after heat drop temperature is then by condenser(31)Flow to the first check valve(111), then by the first check valve(111)Flowed to Cold heat exchanger(4)Interface e, coolant is crossing cold heat exchanger(4)Inside heat release cooling again, the coolant after heat release cooling is by cold and hot heat exchange Device interface f flows to reservoir(8), then by reservoir(8)Flow to spray liquid enthalpy gain heat exchanger(5)Interface d, coolant is then by hydrojet Increasing enthalpy heat exchanger(5)Interface c flows to the 3rd throttle part(103), the coolant after throttling is through the 3rd throttle part(103)Flow direction Outdoor evaporator(7), coolant is in outdoor evaporator(7)Auxiliary hot increasing enthalpy heat exchanger is flowed to after interior suction thermal evaporation(6)Interface i, then By auxiliary hot increasing enthalpy heat exchanger(6)Interface j flows to cross valve(2)Interface E, coolant is then by cross valve(2)Interface S flows to first segment Stream unit(101), after throttling, coolant flowed to cold heat exchanger(4)Interface h, wherein, this coolant is crossing cold heat exchanger(4)Interior with From cold heat exchanger excessively(4)The coolant that interface e flows into carries out heat exchange and absorbs heat, and the coolant after heat absorption evaporation is by supercool heat exchange Device(4)Interface g flows to compressor(1);The working method of described low-temperature heating pattern:The coolant of High Temperature High Pressure is by compressor(1) Flow into cross valve(2)Interface D, then by cross valve(2)Interface C flows into heat storage tank(3)Interior condenser(31), coolant is in condensation Device(31)Interior and heat storage tank(3)Interior heat transferring medium carries out heat exchange, and after heat release cooling, coolant is then by condenser(31)Flow direction First check valve(111), then by the first check valve(111)Flowed to cold heat exchanger(4)Interface e, coolant is crossing cold heat exchanger (4)By cold heat exchanger excessively after inside heat release is lowered the temperature again(4)Interface f flows to reservoir(8), then by reservoir(8)Flow to the 3rd Throttle part(103), the coolant through throttling is by the 3rd throttle part(103)Flow to outdoor evaporator(7), coolant is in outdoor evaporation Device(7)Interior suction thermal evaporation, wherein, coolant can absorb shortage of heat at low ambient temperatures so that outdoor evaporator(7)Interior coolant All evaporate, evaporated the unevaporated coolant of Buddhist monk by outdoor evaporator(7)Flow to auxiliary hot increasing enthalpy heat exchanger(6)Interface i, not yet The coolant of evaporation is in auxiliary hot increasing enthalpy heat exchanger(6)Interior and auxiliary heat carries out heat exchange, and the coolant after heat absorption evaporation is then increased by auxiliary heat Enthalpy heat exchanger(6)Interface j flows to cross valve(2)Interface E, coolant is then by cross valve(2)Interface S flows to first throttle part (101), the coolant after throttling is by first throttle part(101)Flow direction filters heat exchanger interface h, and wherein, this coolant is supercool Heat exchanger(4)Interior with from cross cold heat exchanger(4)The coolant that interface e flows into carries out heat exchange and absorbs heat, cold after heat absorption evaporation Matchmaker is by cold heat exchanger excessively(4)Interface g flows to compressor(1);Secondly, when auxiliary hot shortage of heat, normally run for guarantee system, On the basis of above-mentioned stream, open the increasing enthalpy stop valve on increasing enthalpy stream(92), coolant is through reservoir(8)After be divided into two Road, a branch road is above-mentioned primary flow path, and another branch road is increasing enthalpy stream, and wherein, the coolant on increasing enthalpy stream is by increasing enthalpy stop valve (92)Flow to increasing enthalpy throttle part(104), the coolant after throttling is by increasing enthalpy throttle part(104)Flow to spray liquid enthalpy gain heat exchanger (5)Interface a, the coolant on increasing enthalpy stream is in spray liquid enthalpy gain heat exchanger(5)Interior suction thermal evaporation, the coolant after heat absorption evaporation is by hydrojet Increasing enthalpy heat exchanger(5)Interface b flows back to compressor(1);The working method of described refrigeration defrost pattern:The coolant of High Temperature High Pressure is by pressing Contracting machine(1)Flow to cross valve(2)Interface D, then by cross valve(2)Interface E flows to auxiliary hot increasing enthalpy heat exchanger(6)Interface j, coolant Then by auxiliary hot increasing enthalpy heat exchanger(6)Interface i flows to outdoor evaporator(7), coolant is in outdoor evaporator(7)Interior heat release cooling, By the second check valve after heat release cooling(112)Flow to spray liquid enthalpy gain heat exchanger(5)Interface c, coolant is then by spray liquid enthalpy gain heat exchange Device(5)Interface d flows to reservoir(8), then by reservoir(8)Flowed to cold heat exchanger(4)Interface f, coolant is then by supercool Heat exchanger(4)Interface e flows to the second throttle part(102), through throttling after coolant flow to heat storage tank(3)Interior condenser (31), coolant is in condenser(31)Interior and heat storage tank(3)Interior heat transferring medium carries out heat exchange, by condensing after coolant heat absorption evaporation Device(31)Flow to cross valve(2)Interface C, then by cross valve(2)Interface S flows to the first stop valve(91), coolant is then by One stop valve(91)Flowed to cold heat exchanger(4)Interface h, then by cold heat exchanger excessively(4)Interface g flows back to compressor(1).
5. the auxiliary hot enthalpy increasing heat pump system of one kind according to claim 1 it is characterised in that:In described low-temperature heating pattern, Described coolant is through described outdoor evaporator(7)Heat absorption evaporation followed by flows into described auxiliary hot increasing enthalpy heat exchanger(6)Absorb described auxiliary Heat continues evaporation, described auxiliary hot increasing enthalpy heat exchanger(6)Realize to heat pump enthalpy-increasing function.
CN201610947398.9A 2016-10-26 2016-10-26 Auxiliary heating enthalpy-increasing heat pump system and working mode thereof Pending CN106440459A (en)

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