CN108679868A - A kind of self-operated type Multifunctional heat pump system and its control method - Google Patents
A kind of self-operated type Multifunctional heat pump system and its control method Download PDFInfo
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- CN108679868A CN108679868A CN201810503031.7A CN201810503031A CN108679868A CN 108679868 A CN108679868 A CN 108679868A CN 201810503031 A CN201810503031 A CN 201810503031A CN 108679868 A CN108679868 A CN 108679868A
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- reversal valve
- heat exchanger
- heat
- mouthfuls
- valve
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02742—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two four-way 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention relates to a kind of self-operated type Multifunctional heat pump system and its control methods, wherein, self-operated type Multifunctional heat pump system includes compressor, First Heat Exchanger, the second heat exchanger, third heat exchanger, the first reversal valve, the second reversal valve, throttling set, liquid storage device, gas-liquid separator, hot water circulating pump, cold water circulation pump, outdoor fan.Compared with prior art, the present invention makes self-operated type Multifunctional heat pump system have plurality of operating modes by the control of reversal valve and the start and stop of outdoor fan, hot water circulating pump, cold water circulation pump：Cooling and warming, separate refrigeration or individually heating, realization most suitable operational mode can be automatically selected under different operating modes, realize that the equilibrium of supply and demand of cold and heat, repertoire can automatically control realization, not need manual operation simultaneously.
Description
Technical field
The present invention relates to air-conditioning, heat-pump hot-water technology fields, and in particular to a kind of self-operated type Multifunctional heat pump system and its
Control method.
Background technology
With the development of economy, improvement of living standard, cold water, hot water demand's amount are being stepped up, annual building energy consumption
The 30%~40% of energy total flow is accounted for, hot water energy-output ratio is about to build the 30% of total energy consumption, but mesh in civil buildings
It is preceding mostly use cold water in the market, hot water is separately supplied, traditional hot water supply pattern based on boiler, consumption the energy be mostly
The high-grade energies such as coal, oil, natural gas, not only energy utilization rate is low, and safety is poor, and along with it is serious pollution and
CO2 emission brings various harm to the energy and environmental protection；At the same time, the condensation heat of air-conditioning system is directly discharged to
Outdoor air, causing large effect to city part thermal environment, (Feng Candong and is opened up at the structure design of air source hot pump water heater
Flutter optimization [D], HeFei University of Technology, 2012).
In a variety of civilian and industrial occasion, need to provide cold water and hot water (Zou Jun .PHNIX cold and heat combined supply heat simultaneously
Pump is successfully applied to Shanghai Pei Xin packing Co., Ltd.s [J] packagings forward position, 2014 (4):33-35；The milking stations such as Guo Dong are energy saving
Research and development [J] present age livestock and poultry breeding industries of emission reduction " cold and heat combined supply unit ", 2012 (6):56-58；Peng Fazhan, Zhang Xinrong
Utilize food-processing industry cold and heat combined supply technology [J] Refrigeration ＆ Air-Conditionings of natural medium, 2015,15 (12):67-71；Easy firm
Cold and heat combined supply heat pump is packed in the Guangdong application [J] of printing industry, and 2013:87-90), current cold-hot combined supply system mainly wraps
Include cold-hot combined supply system, cooling heating and power generation system and heat pump recuperation of heat cold-hot combined supply system based on heat engine.Based on the cold of heat engine
Hot co-feeding system improves the comprehensive utilization ratio of the energy to a certain extent, but is to consume the fossil energies such as natural gas
It is main, advantage unobvious (cold-hot combined supply system .CN103673389As of the such as Wang Jialong based on heat engine in terms of reducing carbon emission
[P].2014.)；Supply of cooling, heating and electrical powers is based on cascaded utilization of energy, can improve the comprehensive utilization ratio of the energy, reduce pollutant
The advantages that discharge, alleviation shortage of electric power, but its is larger, is generally divided into building type, domain type and Industrial-Type, is not suitable for
Small-sized place (country the such as Yang Gan cooling heating and power generation system present situation and development trend [J] Journal of Chemical Industry and Engineering, 2015,66 (s2):1-
9)。
The principle of heat pump is inverse Carnot cycle, and the refrigerant vapour of low-temp low-pressure is compressed into high pressure through compressor, high temperature steams
Gas and be discharged, flow into condenser, the medium of surrounding is imparted heat within the condenser, to make refrigerant vapour gradually be condensed into
Liquid, the refrigerant liquid come out from condenser is dropped to by throttling to evaporating pressure, and generates part shwoot steam, after throttling
Gas-liquid mixture enter evaporation in evaporator and absorb the heat of surrounding medium and become gaseous refrigerant, then enter back into compression
Machine is compressed, repeatedly cycle (Beijing rising sun heat pump techniques [M]：Chemical Industry Press, 2007).Entirely recycling
In the process, heat pump can absorb heat transfer to high temperature heat source by inputting a small amount of electric energy from low-temperature heat source, make full use of certainly
The right boundary middle-low grade energy, if implementing the energization schemes of cold and heat combined supply using heat pump, using air conditioner condensation heat as free heat source
Hot water preparing can reduce operating cost, most importantly, it is possible to reduce the consumption of the energy while reducing initial cost
Influence with a large amount of condensation heats to environment.But for heat pump system, heating capacity is equal to the sum of refrigerating capacity and consumption power,
I.e. heating capacity is always larger than refrigerating capacity, and in daily production and living, chilling requirement can be according to factors such as seasonal variations with calorific requirement
It changes, causes institute's chilling requirement and heat to be mismatched with heat pump unit refrigerating capacity and heating capacity, according to its relative value, Ke Yifen
To need cold and heat simultaneously, only needing three kinds of cold, calorific requirement situations, in order to meet requirement, we must lead to
It crosses optimizing structure design and realizes operational mode corresponding with cold and hot amount demand with pipe-line layout, realize hot-cool demand amount and supply
Amount matches.
At present have many forms cold and heat combined supply heat pump system, below to various forms of cold and heat combined supply heat pump systems into
Row discusses：
(1) cold-hot combined supply system without reversal valve
For example, " a kind of cold and heat combined supply heat pump unit " of patent announcement CN2632558Y, patent publication No.
" the sea water desalination heat and cold supplier " of CN102838181A, patent announcement CN206056012U's " realizes cold and hot ally the communists
Although the purpose of cold and heat combined supply, but because system may be implemented in scheme in the patent documents such as heat cascade utilization heat pump system "
Structure is too simple, and operational mode is single, only realizes balance by control valve or bypass or can not adjust, can only meet pole
Cold and heat combined supply and unbalanced adjusting under individual cases, mostly carry out time of heat or cold while being freezed or being heated
It receives.
(2) cold-hot combined supply system of single reversal valve
" the cold and heat combined supply handpiece Water Chilling Units " of patent announcement CN2884059Y, patent announcement CN201229088Y's is " more
" the soil source heat pump hot cold and heat combined supply of heat source trilogy supply heat pump water chiller-heater unit ", patent announcement CN201680649U
The patent documents such as system ", " a kind of heat recovery triple co-generation system " of patent announcement CN106679223A are all made of single four-way
Valve can adjust unit operation pattern by the commutation function of four-way valve, solve the problems, such as cold and hot amount unbalanced supply-demand, but because
It is limited for single four-way valve regulating power, when spring and autumn transition season, it may appear that cold and hot unbalanced phenomenon, such as specially
For the patent document scheme of sharp notification number CN2884059Y when refrigeration requirement is few, requirement, Wu Fadan is not achieved in recuperation of heat amount
Domestic hot-water solely is produced, needs to add ancillary equipment, largely reduced the advantage of cold and heat combined supply.
(3) reversal valve adds the cold-hot combined supply system of auxiliary valve
" the ground-source heat pump central air-conditioning hot water tri-generation unit " of patent announcement CN203024477U is electronic using 10
Ball valve, the switch by controlling electrical ball valve realize that plurality of operating modes realizes the balance of cold and hot supply；Patent announcement number
" the air energy heat pump combined supply system " of CN204854070U is combined using four-way valve with solenoid valve, shut-off valve, check valve
Form realizes the balance of cold and hot supply by adjusting the operational mode of unit；Patent announcement CN201715778U " cold,
Warm, hot trilogy supply heat pump unit " combines the booster action of valve to realize that plurality of operating modes solves using double four-way valve arrangements
Cold and hot amount supplies unbalanced question-and-answer problem.Although using multiple types and the valve of quantity by adjusting unit in heat pump system
The balanced type of cold and hot supply and demand may be implemented in operational mode, but system structure can be caused complicated, and manufacturing cost increases, and not easily-controllable
System, fluctuation of service.And due to being parallel construction between such system heat exchanger, refrigerant distribution can be caused uneven.
Invention content
It is an object of the invention to disclose a kind of self-operated type Multifunctional heat pump system, conventional heat recovery system is solved in transition
The problem of cold that occurs when season, heat imbalance of supply and demand, while the self-operated type Multifunctional heat pump system accordingly being disclosed
Control method.
A kind of self-operated type Multifunctional heat pump system disclosed by the invention, including compressor, First Heat Exchanger, the second heat exchange
It is device, third heat exchanger, the first reversal valve, the second reversal valve, throttling set, liquid storage device, gas-liquid separator, hot water circulating pump, cold
Water-circulating pump, outdoor fan；
The exhaust outlet of the compressor connects the import of the First Heat Exchanger, and the outlet of the First Heat Exchanger connects institute
The D mouths of the first reversal valve are stated, the C mouths of first reversal valve connect the entrance of the liquid storage device, and the outlet of the liquid storage device connects
The entrance of the throttling set is connect, the outlet of the throttling set connects the D mouths of second reversal valve, second reversal valve
C mouths connect the entrance of second heat exchanger, the outlet of second heat exchanger connects the entrance of the gas-liquid separator, institute
The outlet for stating gas-liquid separator connects the air entry of the compressor, E mouths and the third heat exchanger of first reversal valve
The connection of gas collection pipe end, the S mouths of first reversal valve are connected with the S mouths of second reversal valve, second reversal valve
E mouths be connected with the dispenser end of the third heat exchanger；
The hot water circulating pump is connected as hot water circuit additionally by pipeline and the First Heat Exchanger and provides power；It is described
Cold water circulation pump is connected as circulating chilled water additionally by pipeline and second heat exchanger and provides power；The outdoor fan installation
At third heat exchanger heat dissipation is provided for third heat exchanger.
Further, the throttling set is electric expansion valve or heating power expansion valve or capillary.
Further, first reversal valve and the second reversal valve are that electromagnetic type switching valve or four-way valve or four shape of the mouth as one speaks switch
Valve and all meet the valve combination that above-mentioned flow direction requires.
Further, the First Heat Exchanger is always condenser in the operating condition, and the second heat exchanger is in working condition
Under be always evaporator, third heat exchanger is evaporation, condensation dual-purpose heat exchanger.
Further, the First Heat Exchanger, the second heat exchanger are double pipe heat exchanger or coil exchanger or plate
Formula heat exchanger, or the press-bearing water tank with heat exchange function；The third heat exchanger is fin-tube heat exchanger.
Further, the compressor, the first reversal valve, the second reversal valve, hot water circulating pump, cold water circulation pump, outdoor
Wind turbine is controlled by program and realizes automatic running.
Further, the First Heat Exchanger and hot water circulating pump are connect by pipeline with a peripheral hardware hot water, with reality
Existing hot water circuit；Second heat exchanger and cold water circulation pump are connect by pipeline with a peripheral hardware cold tanks, to realize cold water
Cycle.
The control method of the corresponding disclosed above-mentioned self-operated type Multifunctional heat pump system of the present invention, while cooling and warming pattern
Control includes：
A1, keep the first reversal valve and the second reversal valve to be in off state, from exhaust outlet of compressor through First Heat Exchanger,
First D mouthfuls of reversal valve is to C mouthfuls of the first reversal valve, liquid storage device, throttling set, D mouthfuls of the second reversal valve to C mouthfuls of the second reversal valve,
Two heat exchangers, gas-liquid separator, compressor air suction mouth pipeline connection successively, third heat exchanger and the first reversal valve, the second commutation
Pipeline between valve disconnects；
A2, hot water circulating pump and cold water circulation pump are opened, closes outdoor fan；
A3, the high-temperature high-pressure refrigerant for controlling compressor compresses flow into First Heat Exchanger, and the water in heat hot water water tank is same
When cool down itself；Refrigerant after cooling through liquid storage device flow throttling device, is formed low by the first reversal valve after adiabatic expansion
Warm low pressure refrigerant；Low-temperature low-pressure refrigerant flows into the second heat exchanger by the second reversal valve, and the water in cooling cold tanks is same
Shi Jiare flows into gas-liquid separator behind certainly；
A4, control compressor suck the refrigerant flowed out from gas-liquid separator；
A5, cycle execute step A1 to A4, achieve the purpose that while cooling and warming.
Further, in the control method of self-operated type Multifunctional heat pump system, separate refrigeration scheme control includes：
It is open state that B1, holding, which change first to valve, and the second reversal valve is in off state, from exhaust outlet of compressor through first
Heat exchanger, D mouthfuls of the first reversal valve to E mouthfuls of the first reversal valve, third heat exchanger, E mouthfuls of the second reversal valve to S mouthfuls of the second reversal valve,
First S mouthfuls of reversal valve is to C mouthfuls of the first reversal valve, liquid storage device, throttling set, D mouthfuls of the second reversal valve to C mouthfuls of the second reversal valve,
Two heat exchangers, gas-liquid separator, compressor air suction mouth pipeline connection successively；
B2, hot water circulating pump is closed, opens cold water circulation pump, open outdoor fan；
B3, the high-temperature high-pressure refrigerant for controlling compressor compresses change followed by First Heat Exchanger, the first reversal valve, third
Hot device, third heat exchanger discharge heat, refrigerant are made to condense outward；Condensed refrigerant is followed by the second reversal valve,
One reversal valve, liquid storage device, throttling set form low-pressure low-temperature refrigerant after throttling set adiabatic expansion；Low-pressure low-temperature state system
Cryogen flows into the second heat exchanger by the second reversal valve, and the water in cooling cold tanks heats simultaneously flows into gas-liquid separation behind certainly
Device；
B4, control compressor suck the refrigerant flowed out from gas-liquid separator；
B5, cycle execute step B1 to B4, achieve the purpose that separate refrigeration.
Further, in the control method of self-operated type Multifunctional heat pump system, independent heating mode control includes：
C1, the first reversal valve is kept to be in off state, the second reversal valve is open state, from exhaust outlet of compressor to first
Heat exchanger, D mouthfuls of the first reversal valve to C mouthfuls of the first reversal valve, liquid storage device, throttling set, D mouthfuls of the second reversal valve to the second reversal valve
E mouthfuls, third heat exchanger, E mouthfuls of the first reversal valve to S mouthfuls of the first reversal valve, S mouthfuls of the second reversal valve to C mouthfuls of the second reversal valve, second
Heat exchanger, gas-liquid separator, compressor air suction mouth pipeline connection successively；
C2, hot water circulating pump is opened, closes cold water circulation pump, open outdoor fan；
C3, the high-temperature high-pressure refrigerant for controlling compressor compresses flow into First Heat Exchanger, and the water in heat hot water water tank is same
When cool down itself；Refrigerant after cooling through liquid storage device flow throttling device, is formed low by the first reversal valve after adiabatic expansion
Warm low pressure refrigerant；Low-temperature low-pressure refrigerant flows into third heat exchanger by the second reversal valve；Third heat exchanger absorbs heat outward
Amount, makes refrigerant heat；Refrigerant after heating is followed by the first reversal valve, the second reversal valve, the second heat exchanger, gas-liquid point
From device；
C4, control compressor suck the refrigerant flowed out from gas-liquid separator；
C5, cycle execute step C1 to C4, achieve the purpose that individually to heat.
Compared with prior art, the present invention passes through the control of reversal valve and outdoor fan, hot water circulating pump, circulating chilled water
The start and stop of pump make self-operated type Multifunctional heat pump system have plurality of operating modes：Can simultaneously cooling and warming, separate refrigeration or list
Solely heating, realization automatically select most suitable operational mode under different operating modes, realize the equilibrium of supply and demand of cold and heat, entirely
Portion's function can automatically control realization, not need manual operation.
Description of the drawings
Fig. 1 is a kind of self-operated type Multifunctional heat pump system overall structure diagram disclosed in embodiment.
Fig. 2 is operation logic schematic diagrames of the Fig. 1 at the same time under cooling and warming pattern.
Fig. 3 is operation logic schematic diagrames of the Fig. 1 under separate refrigeration pattern.
Fig. 4 is operation logic schematic diagrames of the Fig. 1 under independent heating mode.
Specific implementation mode
In order to better illustrate the present invention, with reference to specific embodiment and attached drawing, the present invention will be further described.It can
With understanding, these specific embodiments and attached drawing are illustrative, are only used for explaining the present invention, and be should not be understood as to this
The limitation of invention.
Examples of the embodiments are shown in the accompanying drawings, and in which the same or similar labels are throughly indicated identical or classes
As element or element with the same or similar functions.The embodiments described below with reference to the accompanying drawings are exemplary, purport
For explaining the present invention, and it is not considered as limiting the invention.
Embodiment one
As shown in Figure 1, a kind of self-operated type Multifunctional heat pump system disclosed in embodiment one, including compressor 1, first exchange heat
Device 2, the second heat exchanger 7, third heat exchanger 11, the first reversal valve 3, the second reversal valve 6, throttling set 5, liquid storage device 4, gas-liquid point
From device 8, hot water circulating pump 9, cold water circulation pump 10, outdoor fan 12.
The import of the exhaust outlet connection First Heat Exchanger 2 of compressor 1, the outlet of First Heat Exchanger 2 connects the first reversal valve 3
D mouths, the entrance of the C mouth connections liquid storage device 4 of the first reversal valve 3, liquid storage device 4 outlet connection throttling set 5 entrance, throttling
The D mouths of the second reversal valve 6 of outlet connection of device 5, the C mouths of the second reversal valve 6 connect the entrance of the second heat exchanger 7, and second changes
The entrance of the outlet connection gas-liquid separator 8 of hot device 7, the air entry of the outlet connect compressor 1 of gas-liquid separator 8, first changes
It is connect to the E mouths of valve 3 with the gas collection pipe end of third heat exchanger 11, the S mouths of the first reversal valve 3 are connected with the S mouths of the second reversal valve 6
It connects, the E mouths of the second reversal valve 6 are connected with the dispenser end of third heat exchanger 11.
Hot water circulating pump 9 is connected as hot water circuit additionally by pipeline and First Heat Exchanger 2 and provides power；Cold water circulation pump
9 are connected as circulating chilled water additionally by pipeline and the second heat exchanger 7 provides power；Outdoor fan 12 is mounted on third heat exchanger 11
Place is that third heat exchanger 11 provides heat dissipation.
In further scheme, throttling set 5 is electric expansion valve or heating power expansion valve or capillary, can be freezed by controlling
The agent degree of superheat adjusts aperture.First reversal valve 3 and the second reversal valve 6 are electromagnetic type switching valve or four-way valve or four shape of the mouth as one speaks switching valves
And all meet the valve combination that above-mentioned flow direction requires.First Heat Exchanger 2 is always condenser in the operating condition, and second changes
Hot device 7 is always evaporator in the operating condition, and third heat exchanger 11 is evaporation, condensation dual-purpose heat exchanger.
In further scheme, First Heat Exchanger 2, the second heat exchanger 7 are double pipe heat exchanger or coil exchanger, or
Plate heat exchanger, or the press-bearing water tank with heat exchange function；Third heat exchanger 11 is fin-tube heat exchanger.
In further scheme, First Heat Exchanger 2 and hot water circulating pump 9 are (not shown by pipeline and a peripheral hardware hot water
Go out) connection, to realize hot water circuit；(figure is not by pipeline and a peripheral hardware cold tanks for second heat exchanger 7 and cold water circulation pump 10
Show) connection, to realize circulating chilled water.In the present embodiment, First Heat Exchanger 2 and the second heat exchanger 7 are located inside unit, accordingly
It is connected with hot water, cold tanks by pipeline, is advantageously reduced because of the long increased cold-producing medium stream dynamic resistance of pipeline, from
And reduce compressor operating electric current, improve the Energy Efficiency Ratio of compressor.
Alternatively, compressor 1, First Heat Exchanger, the first reversal valve 3, liquid storage device 4, throttling set 5,
Connecting line between two reversal valves, the second heat exchanger, gas-liquid separator 8, third heat exchanger is both preferably copper tube.
In further scheme, compressor 1, the first reversal valve 3, the second reversal valve 6, hot water circulating pump 9, cold water circulation pump
10, outdoor fan 12 is controlled by program and realizes automatic running
Embodiment one can be by controlling the start and stop and the of the hot water circulating pump 9, cold water circulation pump 10, outdoor fan 12
The opening and closing of one reversal valve 3, the second reversal valve 6 adjusts cooling and warming, separate refrigeration, individually three kinds of operational modes of heating simultaneously, tool
Body refers to following embodiment two.
Embodiment two
Embodiment two discloses a kind of control method of self-operated type Multifunctional heat pump system on the basis of embodiment one, should be certainly
The composition of power formula Multifunctional heat pump system is identical as embodiment one, which includes cooling and warming pattern simultaneously, individually system
Chill formula, the control of independent heating mode.It can specifically be realized under different operating modes according to actual condition adjust automatically operating mode
Most suitable operating mode is automatically selected, repertoire switching is realized using control program, does not need manual operation, product operation
Simply, the personnel that can be suitable for not received special training use.
1 while cooling and warming scheme control
Referring to Fig. 2, cooling and warming scheme control includes the following steps S101 to S105 simultaneously：
S101, it keeps the first reversal valve 3 and the second reversal valve 6 to be in off state, is changed from 1 exhaust outlet of compressor through first
Hot device 2, the first reversal valve 3 D mouths to the C mouths of the first reversal valve 3, liquid storage device 4, throttling set 5, the second reversal valve 6 D mouths extremely
The C mouths of second reversal valve 6, the second heat exchanger 7, gas-liquid separator 8,1 air entry of compressor pipeline connection successively, third heat exchanger
Pipeline between 11 and first reversal valve 3, the second reversal valve 6 disconnects.
S102, hot water circulating pump 9 and cold water circulation pump 10 are opened, closes outdoor fan 12.
The high-temperature high-pressure refrigerant that S103, control compressor 1 compress flows into First Heat Exchanger 2, in heat hot water water tank
Water cooling simultaneously itself；Refrigerant after cooling by the first reversal valve 3 through 4 flow throttling device 5 of liquid storage device, after adiabatic expansion
Form low-temperature low-pressure refrigerant；Low-temperature low-pressure refrigerant flows into the second heat exchanger 7, cooling cold tanks by the second reversal valve 6
In water simultaneously heat from behind flow into gas-liquid separator 8.
S104, control compressor 1 suck the refrigerant flowed out from gas-liquid separator 8.
S105, cycle execute step S101 to S104, achieve the purpose that while cooling and warming.
2, separate refrigeration scheme control
Referring to Fig. 3, separate refrigeration scheme control includes the following steps S201 to S205：
It is open state that S201, holding, which change first to valve 3, and the second reversal valve 6 is in off state, from 1 exhaust outlet of compressor
Through First Heat Exchanger 2, the first reversal valve 3 D mouths to the E mouths of the first reversal valve 3, the E of third heat exchanger 11, the second reversal valve 6
Mouthful to the S mouths of the second reversal valve 6, the first reversal valve 3 S mouths to the C mouths of the first reversal valve 3, liquid storage device 4, throttling set 5, the
The D mouths of two reversal valves 6 to the C mouths of the second reversal valve 6, the second heat exchanger 7, gas-liquid separator 8,1 air entry of compressor is managed successively
Road is connected to.
S202, hot water circulating pump 9 is closed, opens cold water circulation pump 10, open outdoor fan 12.
S203, control compressor 1 compress high-temperature high-pressure refrigerant followed by First Heat Exchanger 2, the first reversal valve 3,
Third heat exchanger 11, third heat exchanger 11 discharge heat, refrigerant are made to condense outward；Condensed refrigerant is followed by second
Reversal valve 6, the first reversal valve 3, liquid storage device 4, throttling set 5 form low-pressure low-temperature refrigeration after 5 adiabatic expansion of throttling set
Agent；Low-pressure low-temperature state refrigerant flows into the second heat exchanger 7 by the second reversal valve 6, and the water in cooling cold tanks heats simultaneously
From inflow gas-liquid separator 8 behind.
S204, control compressor 1 suck the refrigerant flowed out from gas-liquid separator 8.
S205, cycle execute step S201 to S204, achieve the purpose that separate refrigeration.
3, independent heating mode control
Referring to Fig. 4, individually heating mode control includes the following steps S301 to S305：
S301, the first reversal valve 3 is kept to be in off state, the second reversal valve 6 is open state, from 1 exhaust outlet of compressor
To First Heat Exchanger 2, the first reversal valve 3 D mouths to the first reversal valve 3 C mouths, liquid storage device 4, throttling set 5, the second reversal valve
The E mouths of 6 D mouths to the second reversal valve 6, third heat exchanger 11, the first reversal valve 3 E mouths to the first reversal valve 3 S mouths, second
The S mouths of reversal valve 6 are to the C mouths of the second reversal valve 6, the second heat exchanger 7, gas-liquid separator 8,1 air entry of compressor successively pipeline
Connection.
S302, hot water circulating pump 9 is opened, closes cold water circulation pump 10, open outdoor fan 12.
The high-temperature high-pressure refrigerant that S303, control compressor 1 compress flows into First Heat Exchanger 2, in heat hot water water tank
Water cooling simultaneously itself；Refrigerant after cooling by the first reversal valve 3 through 4 flow throttling device 5 of liquid storage device, after adiabatic expansion
Form low-temperature low-pressure refrigerant；Low-temperature low-pressure refrigerant flows into third heat exchanger 11 by the second reversal valve 6；Third heat exchanger 11
Heat is absorbed outward, makes refrigerant heat；Refrigerant after heating is followed by the first reversal valve 3, the second reversal valve 6, second
Heat exchanger 7, gas-liquid separator 8.
S304, control compressor 1 suck the refrigerant flowed out from gas-liquid separator 8.
S305, cycle execute step S301 to S304, achieve the purpose that individually to heat.
Switching point Primary Reference hot water and cold water temperature of the three of the above operating mode under procedure auto-control.Work as cold water
Temperature is higher than set temperature value, and hot water temperature is less than set temperature value, illustrates to need while providing cold and heat, system is sent out
It instructs and is run under cooling and warming pattern at the same time；When cold water temperature is higher than set temperature value, hot water temperature is higher than set temperature value,
Illustrate only to need to provide cold, system sends out instruction and runs under separate refrigeration pattern；When cold water temperature be less than set temperature value,
Hot water temperature is less than set temperature value, illustrates to need to provide heat, system sends out instruction and runs under independent heating mode；When cold
Coolant-temperature gage is less than setting value, and hot water temperature is higher than setting value, and system sends out instruction stop.
In conclusion the balance of cold and heat may be implemented in the present invention, ancillary equipment is not needed, and be easy to operate.
Although having done illustrative description to the present invention above, it will be understood by those skilled in the art that：
In the case of not departing from the principle of the present invention and objective, can these embodiments be carried out with a variety of variations, modification, replace and become
Type, the scope of the present invention are limited by claim and its equivalent.
Claims (10)
1. a kind of self-operated type Multifunctional heat pump system, which is characterized in that including compressor, First Heat Exchanger, the second heat exchanger,
Three heat exchangers, the first reversal valve, the second reversal valve, throttling set, liquid storage device, gas-liquid separator, hot water circulating pump, circulating chilled water
Pump, outdoor fan；
The exhaust outlet of the compressor connects the import of the First Heat Exchanger, the outlet connection of the First Heat Exchanger described the
The D mouths of one reversal valve, the C mouths of first reversal valve connect the entrance of the liquid storage device, and the outlet of the liquid storage device connects institute
The entrance of throttling set is stated, the outlet of the throttling set connects the D mouths of second reversal valve, the C of second reversal valve
Mouth connects the entrance of second heat exchanger, and the outlet of second heat exchanger connects the entrance of the gas-liquid separator, described
The outlet of gas-liquid separator connects the air entry of the compressor, E mouths and the third heat exchanger of first reversal valve
Gas collection pipe end connects, and the S mouths of first reversal valve are connected with the S mouths of second reversal valve, the E of second reversal valve
Mouth is connected with the dispenser end of the third heat exchanger；
The hot water circulating pump is connected as hot water circuit additionally by pipeline and the First Heat Exchanger and provides power；The cold water
Circulating pump is connected as circulating chilled water additionally by pipeline and second heat exchanger and provides power；The outdoor fan is mounted on the
At three heat exchangers heat dissipation is provided for third heat exchanger.
2. self-operated type Multifunctional heat pump system as described in claim 1, which is characterized in that the throttling set is electronic expansion
Valve or heating power expansion valve or capillary.
3. self-operated type Multifunctional heat pump system as described in claim 1, which is characterized in that first reversal valve is changed with second
To valve be electromagnetic type switching valve or four-way valve or four shape of the mouth as one speaks switching valves and all meet the valve combination that above-mentioned flow direction requires.
4. self-operated type Multifunctional heat pump system as described in claim 1, which is characterized in that the First Heat Exchanger is in work shape
It is always condenser under state, the second heat exchanger is always evaporator in the operating condition, and third heat exchanger is dual-purpose to evaporate, condensing
Heat exchanger.
5. self-operated type Multifunctional heat pump system as described in claim 1, which is characterized in that the First Heat Exchanger, second are changed
Hot device is double pipe heat exchanger or coil exchanger or plate heat exchanger, or the press-bearing water tank with heat exchange function；Described
Three heat exchangers are fin-tube heat exchanger.
6. self-operated type Multifunctional heat pump system as described in claim 1, which is characterized in that the compressor, the first reversal valve,
Second reversal valve, hot water circulating pump, cold water circulation pump, outdoor fan are controlled by program realizes automatic running.
7. such as claim 1 to 6 any one of them self-operated type Multifunctional heat pump system, which is characterized in that first heat exchange
Device and hot water circulating pump are connect by pipeline with a peripheral hardware hot water, to realize hot water circuit；Second heat exchanger and cold
Water-circulating pump is connect by pipeline with a peripheral hardware cold tanks, to realize circulating chilled water.
8. a kind of control method of self-operated type Multifunctional heat pump system as claimed in claim 7, which is characterized in that freeze simultaneously
Heating mode controls：
A1, the first reversal valve and the second reversal valve is kept to be in off state, from exhaust outlet of compressor through First Heat Exchanger, first
D mouthfuls of reversal valve to C mouthfuls of the first reversal valve, liquid storage device, throttling set, D mouthfuls of the second reversal valve to C mouthfuls of the second reversal valve, second is changed
Hot device, gas-liquid separator, compressor air suction mouth pipeline connection successively, third heat exchanger and the first reversal valve, the second reversal valve it
Between pipeline disconnect；
A2, hot water circulating pump and cold water circulation pump are opened, closes outdoor fan；
A3, the high-temperature high-pressure refrigerant for controlling compressor compresses flow into First Heat Exchanger, and the water in heat hot water water tank is cold simultaneously
But itself；It is low that refrigerant after cooling forms low temperature by the first reversal valve through liquid storage device flow throttling device, after adiabatic expansion
Compression refrigerant；Low-temperature low-pressure refrigerant flows into the second heat exchanger by the second reversal valve, and the water in cooling cold tanks adds simultaneously
Heat flows into gas-liquid separator behind certainly；
A4, control compressor suck the refrigerant flowed out from gas-liquid separator；
A5, cycle execute step A1 to A4, achieve the purpose that while cooling and warming.
9. the control method of self-operated type Multifunctional heat pump system as claimed in claim 8, which is characterized in that separate refrigeration pattern
Control includes：
It is open state that B1, holding, which change first to valve, and the second reversal valve is in off state, from exhaust outlet of compressor through the first heat exchange
Device, D mouthfuls of the first reversal valve to E mouthfuls of the first reversal valve, third heat exchanger, E mouthfuls of the second reversal valve to S mouthfuls of the second reversal valve, first
S mouthfuls of reversal valve to C mouthfuls of the first reversal valve, liquid storage device, throttling set, D mouthfuls of the second reversal valve to C mouthfuls of the second reversal valve, second is changed
Hot device, gas-liquid separator, compressor air suction mouth pipeline connection successively；
B2, hot water circulating pump is closed, opens cold water circulation pump, open outdoor fan；
B3, the high-temperature high-pressure refrigerant of compressor compresses is controlled followed by First Heat Exchanger, the first reversal valve, third heat exchange
Device, third heat exchanger discharge heat, refrigerant are made to condense outward；Condensed refrigerant is followed by the second reversal valve, first
Reversal valve, liquid storage device, throttling set form low-pressure low-temperature refrigerant after throttling set adiabatic expansion；Low-pressure low-temperature state is freezed
Agent flows into the second heat exchanger by the second reversal valve, and the water in cooling cold tanks heats simultaneously flows into gas-liquid separation behind certainly
Device；
B4, control compressor suck the refrigerant flowed out from gas-liquid separator；
B5, cycle execute step B1 to B4, achieve the purpose that separate refrigeration.
10. the control method of self-operated type Multifunctional heat pump system as claimed in claim 9, which is characterized in that individually heat mould
Formula controls：
C1, the first reversal valve is kept to be in off state, the second reversal valve is open state, from exhaust outlet of compressor to the first heat exchange
Device, D mouthfuls of the first reversal valve to C mouthfuls of the first reversal valve, liquid storage device, throttling set, D mouthfuls of the second reversal valve to E mouthfuls of the second reversal valve,
Third heat exchanger, E mouthfuls of the first reversal valve to S mouthfuls of the first reversal valve, S mouthfuls of the second reversal valve to C mouthfuls of the second reversal valve, the second heat exchange
Device, gas-liquid separator, compressor air suction mouth pipeline connection successively；
C2, hot water circulating pump is opened, closes cold water circulation pump, open outdoor fan；
C3, the high-temperature high-pressure refrigerant for controlling compressor compresses flow into First Heat Exchanger, and the water in heat hot water water tank is cold simultaneously
But itself；It is low that refrigerant after cooling forms low temperature by the first reversal valve through liquid storage device flow throttling device, after adiabatic expansion
Compression refrigerant；Low-temperature low-pressure refrigerant flows into third heat exchanger by the second reversal valve；Third heat exchanger absorbs heat outward, makes
Refrigerant heat；Refrigerant after heating is followed by the first reversal valve, the second reversal valve, the second heat exchanger, gas-liquid separator；
C4, control compressor suck the refrigerant flowed out from gas-liquid separator；
C5, cycle execute step C1 to C4, achieve the purpose that individually to heat.
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| CN201810503031.7A CN108679868B (en) | 2018-05-23 | 2018-05-23 | Self-operated multifunctional heat pump system and control method thereof |
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| CN201810503031.7A CN108679868B (en) | 2018-05-23 | 2018-05-23 | Self-operated multifunctional heat pump system and control method thereof |
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| CN109186131A (en) * | 2018-10-25 | 2019-01-11 | 科希曼电器有限公司 | A kind of heat pump system of comprehensive multi-mode hybrid working |
| CN109595848A (en) * | 2018-12-07 | 2019-04-09 | 广州大学 | A kind of trilogy supply air conditioning and water heating system |
| CN110145888A (en) * | 2019-06-06 | 2019-08-20 | 西安航空学院 | A kind of cold and heat combined supply control system using high temperature heat pump |
| CN115264985A (en) * | 2022-07-01 | 2022-11-01 | 华为数字能源技术有限公司 | Cold and hot water unit, control method thereof and heating ventilation air conditioning system |
| CN115468329A (en) * | 2022-09-13 | 2022-12-13 | 约克广州空调冷冻设备有限公司 | Heat pump system |
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