CN110131918A - Air-conditioning water heater system and its control method - Google Patents
Air-conditioning water heater system and its control method Download PDFInfo
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- CN110131918A CN110131918A CN201910548642.8A CN201910548642A CN110131918A CN 110131918 A CN110131918 A CN 110131918A CN 201910548642 A CN201910548642 A CN 201910548642A CN 110131918 A CN110131918 A CN 110131918A
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- mouthful
- control valve
- heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- 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
-
- 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
-
- 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
- F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
-
- 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
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a kind of air-conditioning water heater system and its control methods, wherein system includes compressor, domestic hot-water's heat exchanger, four-way valve, outdoor heat exchanger, throttle part, indoor air-conditioning heat exchanger, water pump and water tank, it further include having I, II, III, the control valve group of IV 4 ports, I mouthful of control valve group and IV mouthful is connected to the port of indoor air-conditioning heat exchanger and liquid mouth respectively, II mouthful is connected to d mouthfuls, III mouthful is connected to by throttle part with the liquid mouth of outdoor heat exchanger, control valve group includes the 2. state that I mouthful to II mouthful direction is individually connected to, the 3. state that II mouthful to III mouthful direction is individually connected to.The present invention can be when singly heating water running, the refrigerant evacuation in indoor heat exchanger is first recycled to compressor, in hot water heat exchanger, in outdoor heat exchanger, all refrigerants in system are enable all to put into heating water running, to improve the efficiency of heating water running, and damage due to avoid the deficiency because of refrigerant and lubricating oil to compressor.
Description
Technical field
The invention belongs to the technical fields that air-conditioning and heat-pump hot-water are applied, and in particular to a kind of air-conditioning water heater system and its
Control method.
Background technique
Refrigeration, heating and hot water for life of the air conditioner and water heater to realize room, existing air conditioner and water heater are difficult to reality
Existing commercialized actual use, because being primarily present two aspect problems: one is air conditioner and water heater is when singly heating water running,
Refrigerant will be by indoor air-conditioning heat exchanger, to cause thermal loss, the efficiency for heating water running is very low；The second is air conditioner heat
Even if hydrophone is singly heating water running time control refrigeration matchmaker from bypass line using bypass line, solenoid valve or solenoid directional control valve etc.
Walk and without indoor air-conditioning heat exchanger and pipeline, but in this way have a large amount of refrigerants and be dissolved in refrigerant lubricating oil product
There are in the air-conditioning heat exchanger of indoor, this part refrigerant and lubricating oil cannot participate in coolant loop circulation, to cause air conditioner heat
Hydrophone is in heating water running, and refrigerant and lubrication shortage of oil not only cause the low efficiency for heating water running, but also system operation is not
Stablize, compressor displacement is easy to damage；Even some air conditioner and water heaters are also not only merely that there are refrigerants and profit when heating water running
The accumulation area of lubricating oil, in refrigerating operaton, heating operation there is also the accumulation area of refrigerant and lubricating oil, cause water heating, refrigeration,
Heating operation efficiency is all low, lubricating oil cannot abundant reflux compressor, cause compressor fault frequent.
Summary of the invention
The purpose of the present invention is to solve the shortcomings of the prior art place, provide one kind refrigerant in single water heating be not required to through
Cross indoor heat exchanger, refrigerant can be recovered to compressor and domestic hot-water's heat exchanger in indoor heat exchanger and outside is changed
Air-conditioning water heater system and its control method in hot device.
This air-conditioning water heater system provided by the invention, including compressor, domestic hot-water's heat exchanger, have a, b, c, d
The four-way valve of four ports, outdoor heat exchanger, throttle part, indoor air-conditioning heat exchanger, water pump and water tank, the row of compressor
Port is connected to the refrigerant inlet of domestic hot-water's heat exchanger, and the refrigerant exit of domestic hot-water's heat exchanger is connected to a mouthfuls, b mouthfuls and room
The port of outside heat exchanger is connected to, and c mouthfuls are connected to the gas returning port of compressor, and four-way valve can be cut between first state and the second state
It changes, first state refers to that a mouthfuls are connected to b mouthfuls, c mouthfuls with d mouthfuls simultaneously, and the second state refers to that a mouthfuls are connected to d mouthfuls, b mouthfuls with c mouthfuls simultaneously, raw
The water loop of hot water heat exchanger, water tank and water pump living, which joins end to end, forms hot water heating circuit, it is characterised in that: further includes having
I, the control valve group of II, III, IV 4 port, I mouthful of the control valve group and IV mouthful port with indoor air-conditioning heat exchanger respectively
It is connected to liquid mouth, II mouthful is connected to d mouthfuls, and III mouthful is connected to by throttle part with the liquid mouth of outdoor heat exchanger, control valve group packet
Include I mouthful to II mouthful direction is individually connected to the 3. state that 2. state, II mouthful to III mouthful direction are individually connected to.
The control valve group include the first control valve between being connected to I, II mouthful, be connected to II, III mouthful between the second control
Valve and the third control valve being connected between III, IV mouthful.
First control valve and third control valve are a bidirectional electromagnetic valves, and the second control valve is one II mouthful to III
The Unidirectional solenoid valve of mouth direction conducting.
The control valve group includes the 4th control valve between being connected to I mouthful, II mouthful and III mouthful, is connected between III, IV mouthful
5th control valve.
4th control valve is a three-way magnetic valve, and the 5th control valve is the one III mouthful list be connected to IV mouthful of direction
To solenoid valve.
The control valve group includes the 6th control valve between being connected to I, II mouthful, is connected between II mouthful, III mouthful and IV mouthful
7th control valve.
6th control valve is the one I mouthful Unidirectional solenoid valve be connected to II mouthful of direction, and the 7th control valve is one three
Three-way electromagnetic valve.
The control valve group further includes the 4. state of I mouthful to II mouthful direction, III mouthful to IV mouthful direction while connection.
The control valve group further includes the 5. state of II mouthful to I mouthful direction, IV mouthful to III mouthful direction while connection.
The present invention also provides the control method for the single heating water running for being suitable for above-mentioned air-conditioning water heater system, operation steps
It is rapid as follows:
One, four-way valve is switched to first state, control valve is switched to the 2. state；
Two, compressor is opened, the refrigerant in the air-conditioning heat exchanger of indoor, which is evacuated, is recycled to compressor, outside heat exchange
In device, domestic hot-water's heat exchanger；
Three, after the refrigerant in the air-conditioning heat exchanger of indoor is evacuated recycling, by control valve group be switched to 3. state,
Four-way valve is switched to the second state；
Four, water pump is opened, the water in water tank, which enters the refrigerant that domestic hot-water's heat exchanger and exhaust outlet of compressor come, to carry out
Heat exchange, the water after heat temperature raising are sent back to water tank, the refrigerant after exothermic condensation through four-way valve, II mouthful and III mouthful of control valve group simultaneously
After being throttled by throttle part enter outdoor heat exchanger, refrigerant absorb heat in outdoor heat exchanger evaporate after enter through four-way valve
Compressor return air mouth returns to compressor, completes primary single water heating circulation.
The present invention by added between existing indoor air-conditioning heat exchanger and four-way valve and throttle part one tool there are four
The control valve group of port can be in single system by the conducting flowed between refrigerant each port of control valve group and the various combination closed
When hot water is run, the refrigerant evacuation in indoor heat exchanger is first recycled to compressor, domestic hot-water's heat exchanger, outdoor heat exchanger
It is interior, so that all refrigerants in system is all put into heating water running, also there is no refrigerant warps in the air-conditioning heat exchanger of indoor
Cross with deposition, to improve the efficiency of heating water running, and to the damage of compressor due to avoid the deficiency because of refrigerant and lubricating oil
Evil greatly improves the stability and reliability of system operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention one.
Fig. 2 is the structural schematic diagram of the embodiment of the present invention two.
Fig. 3 is the structural schematic diagram of the embodiment of the present invention three.
Fig. 4 is the structural schematic diagram of the embodiment of the present invention four.
Fig. 5 is the structural schematic diagram of the embodiment of the present invention five.
Fig. 6 is the structural schematic diagram of the embodiment of the present invention six.
Fig. 7 is the structural schematic diagram of the embodiment of the present invention seven.
Fig. 8 is the structural schematic diagram of the embodiment of the present invention eight.
Label and corresponding component name shown in figure are as follows:
1, compressor；2, domestic hot-water's heat exchanger；3, four-way valve；4, outdoor heat exchanger；5, throttle part；6, control valve
Group；7, indoor air-conditioning heat exchanger；8, water pump；9, water tank；21, refrigerant inlet；22, refrigerant exit；23, water inlet；24, it is discharged
Mouthful；61, the first control valve；62, the second control valve；63, third control valve；64, the 4th control valve；65, the 5th control valve；66,
6th control valve；67, the 7th control valve.
Specific embodiment
It can be seen that this air-conditioning water heater system of the present invention, including compressor 1, domestic hot-water's heat exchange from Fig. 1 to Fig. 8
Device 2, four-way valve 3, outdoor heat exchanger 4, throttle part 5, control valve group 6, indoor air-conditioning heat exchanger 7, water pump 8 and water tank 9,
Wherein, compressor 1 has exhaust outlet and gas returning port, and domestic hot-water's heat exchanger 2 has refrigerant inlet 21, refrigerant exit 22, water inlet
Mouth 23 and water outlet 24, four-way valve 3 have tetra- valve ports of a, b, c, d, and outdoor heat exchanger 4 has port and liquid mouth, throttle
Part 5 have first port and second port, indoor air-conditioning heat exchanger 8 have port and liquid mouth, control valve group 6 have I, II,
III, IV 4 ports；
Four-way valve 3 can switch between first state and the second state, and first state refers to that a mouth of four-way valve 3 is connected to b mouthfuls
And the c mouthfuls of states being connected to d mouthfuls, the second state refers to a mouth of four-way valve 3 and d mouthfuls are connected to and the b mouthfuls of states being connected to c mouthfuls；
Control valve group 6 includes the 1. 2. 3. state of state, the of state, the, wherein the 1. state refer to control valve group 6
Reset condition, 2. state refer to I mouthful of state being individually connected to II mouthful of direction, 3. state refer to II mouthful to III mouthful direction list
The state being solely connected to.
The exhaust outlet of compressor 1 is connected to by pipeline with the refrigerant inlet 21 of domestic hot-water's heat exchanger 2, domestic hot-water's heat exchange
The refrigerant exit 22 of device 2 is connected to by pipeline with a of four-way valve 3 mouth, and the b mouth of four-way valve 3 passes through pipeline and outdoor heat exchanger 4
Port connection, c mouth of four-way valve 3 pass through pipeline and be connected to the gas returning port of compressor 1, and the liquid mouth of outdoor heat exchanger 4 passes through
Pipeline is connected to the first port of throttle part 5, and the second port of throttle part 5 passes through III mouthful of company of pipeline and control valve group 6
Logical, IV mouthful of control valve group 6 is connected to by pipeline with the liquid mouth of indoor air-conditioning heat exchanger 7, the gas of indoor air-conditioning heat exchanger 7
It mouthful is connected to by I mouthful of pipeline and control valve group 6, II mouthful of control valve group 6 passes through pipeline and be connected to the d of four-way valve 3 mouth, water tank
9 cooling water outlet is connected to by water pump 8 and pipeline with the water inlet 23 of domestic hot-water's heat exchanger 2, and domestic hot-water's heat exchanger 2 goes out
The mouth of a river 24 is connected to by pipeline with the hot water inlet of water tank 9, and domestic hot-water's heat exchanger 2, water tank 9 and water pump 8 form hot water heating
Circuit.
In the present invention, outdoor heat exchanger 4 is that air-refrigerant heat exchange heat exchanger or water-refrigerant heat exchange are changed
Hot device；Indoor air-conditioning heat exchanger 7 is air-refrigerant heat exchange air conditioner indoor unit or water-refrigerant heat exchange heat exchanger.
Embodiment one
It will be seen from figure 1 that the control valve group 6 of the present embodiment is by the first control valve 61 between being connected to I, II mouthful, connection
Third control valve 63 in the second control valve 62 between II, III mouthful and between being connected to III, IV mouthful is composed, the first control valve 61
It being made of with third control valve 63 bidirectional electromagnetic valve, the second control valve 62 is separately formed by a Unidirectional solenoid valve,
The conducting direction of the Unidirectional solenoid valve is II mouthful to III mouthful direction of control valve group 6.
In the present embodiment, control valve group 6 further includes the 4. state and the 5. state, wherein 4. state refer to that I mouthful is arrived
II mouthful of direction, III mouthful to IV mouthful direction are connected to simultaneously and III mouthful of state closed to II mouthful of direction, the 5. state refer to II mouthful to I
Mouth direction, IV mouthful to III mouthful direction are connected to simultaneously and II mouthful of state closed to III mouthful of direction.
In the present embodiment, air-conditioning water heater system has single water heating, single refrigeration, single heating, refrigeration and water heating, system
Heat and five kinds of operating modes of water heating, are below illustrated the operation under various operating modes.
[single hot water model]
Single hot water model operational process of the air-conditioning water heater system of the present embodiment is described as follows:
One, four-way valve 3 is switched to first state, control valve group 6 is switched to the 2. state, at this point, a mouth of four-way valve 3
With b mouthfuls of conductings and c mouthfuls are individually connected to I mouthful to II mouthful direction of d mouthfuls of conductings, control valve group 6；
Two, compressor 1 starts, and the refrigerant in indoor air-conditioning heat exchanger 7, which is evacuated, is recycled to compressor 1, domestic hot-water
In heat exchanger 2, outdoor heat exchanger 4；
Three, after the refrigerant in indoor air-conditioning heat exchanger 7 is evacuated recycling, by four-way valve 3 be switched to the second state,
Control valve group 6 is switched to the 3. state, at this point, a mouth of four-way valve 3 with d mouthfuls of conductings and b mouthful be connected with c mouthfuls, control valve group 6
II mouthful to III mouthful direction is individually connected to；
Four, water pump 8 is run, and refrigerant is after the discharge of the exhaust outlet of compressor 1 from the refrigerant inlet 21 of domestic hot-water's heat exchanger 2
Into domestic hot-water's heat exchanger 2, the water in water tank 9 is pumped in domestic hot-water's heat exchanger 2 by water pump 8 to be heated up, refrigerant
The exothermic condensation in domestic hot-water's heat exchanger 2, the water after heat temperature raising are sent back to water tank 9, and the refrigerant after exothermic condensation is from life
The refrigerant exit 22 of hot water heat exchanger 2 comes out II mouthful into control valve group 6 through four-way valve 3, comes out from III mouthful of control valve group 6
Enter outdoor heat exchanger 4 after throttling by throttle part 5, outdoor heat exchanger 4 provides heat source to refrigerant, and refrigerant is in outside
The gas returning port for entering compressor 1 in heat exchanger 4 after heat absorption evaporation through four-way valve 3, so recycles repeatedly, until the water in water tank 9
After temperature reaches set temperature, compressor 1, water pump 8 are out of service, and outdoor heat exchanger 4 also stops providing heat source to refrigerant；
After the water temperature in water tank 9 reduces the condition for reaching starting water heating, air-conditioning water heater system enters water heating again
Working condition, compressor 1, water pump 8 resume operation, and outdoor heat exchanger 4 also restores to provide heat source to refrigerant, until in water tank 9
Water temperature reach set temperature again.
It can be seen that air-conditioning water heater system of the invention from aforesaid operations process and enter under single hot water model and run
When, the refrigerant evacuation in indoor air-conditioning heat exchanger 7 is first recycled to compressor 1, domestic hot-water's heat exchanger 2, outside heat exchange
In device 4, the refrigerant in system is set to be fully immersed heating water running, and heat in water running, refrigerant is without indoor sky
Heat exchanger 7 is adjusted, without the accumulation of refrigerant and lubricating oil in indoor air-conditioning heat exchanger 7, is proved by long-term using practice, is made
Hot water operational efficiency can be improved 40% or more, and damage due to avoid the deficiency because of refrigerant and lubricating oil to compressor, significantly
The stability and reliability of raising system operation.
[single refrigeration mode]
Single refrigeration mode operational process of the air-conditioning water heater system of the present embodiment is described as follows:
One, four-way valve 3 is switched to first state, control valve group 6 is switched to the 4. state, at this point, a mouth of four-way valve 3
With b mouthfuls of conductings and c mouthfuls are connected with d mouthfuls, and I mouthful to II mouthful direction, III mouthful to the IV mouthful direction of control valve group 6 are connected to simultaneously；
Two, compressor 1 run, refrigerant from 1 exhaust outlet of compressor be discharged, by domestic hot-water's heat exchanger 2, four-way valve 3 into
Enter the port of outdoor heat exchanger 4, outdoor heat exchanger 4 externally radiates, refrigerant in outdoor heat exchanger 4 after exothermic condensation,
It is come out from the liquid mouth of outdoor heat exchanger 4, III mouthful of control valve group 6 is entered after throttling by throttle part 5, from control valve group 6
IV mouthful come out and enter the room the liquid mouth of side air-conditioning heat exchanger 7,7 pairs of indoor air-conditioning heat exchanger indoor refrigeration, refrigerant is indoors
After the 7 interior suction thermal evaporation of side air-conditioning heat exchanger, I mouthful for entering control valve group 6 is come out from the port of indoor air-conditioning heat exchanger 7, from
II mouthful of control valve group 6, which comes out, returns to compressor by the gas returning port that four-way valve 3 enters compressor 1, and completion is once freezed cold
Matchmaker's circulation.
[single heating mode]
Single heating mode operational process of the air-conditioning water heater system of the present embodiment is described as follows:
One, four-way valve 3 is switched to the second state, control valve group 6 is switched to the 5. state, at this point, a mouth of four-way valve 3
With d mouthfuls of conductings and b mouthfuls are connected with c mouthfuls, and II mouthful to I mouthful direction, IV mouthful to the III mouthful direction of control valve group 6 are connected to simultaneously；
Two, compressor 1 is run, and refrigerant is discharged from the exhaust outlet of compressor 1, by domestic hot-water's heat exchanger 2, four-way valve 3
Into II mouthful of control valve group 6, the port for entering the room side air-conditioning heat exchanger 7 is come out from I mouthful of control valve group 6, indoor is empty
Adjust heat exchanger 7 to indoor radiating, refrigerant is indoors in side air-conditioning heat exchanger 7 after exothermic condensation, from indoor air-conditioning heat exchanger 7
Liquid mouth enters IV mouthful of control valve group 6 out, is come out after being throttled by throttle part 5 from III mouthful of control valve group 6 into outdoor
The liquid mouth of side heat exchanger 4, outdoor heat exchanger 4 provide heat source to refrigerant, and refrigerant is absorbed heat in outdoor heat exchanger 4 after evaporation,
It is come out from the port of outdoor heat exchanger 4, returns to compressor by the gas returning port that four-way valve 3 enters compressor 1, complete primary system
The refrigerant circulation of heat.
[refrigeration and hot water model]
The refrigeration and hot water model operational process of the air-conditioning water heater system of the present embodiment are described as follows:
One, four-way valve 3 is switched to first state, control valve group 6 is switched to the 4. state, at this point, a mouth of four-way valve 3
With b mouthfuls of conductings and c mouthfuls are connected with d mouthfuls, and I mouthful to II mouthful direction, III mouthful to the IV mouthful direction of control valve group 6 are connected to simultaneously；
Two, compressor 1 and water pump 8 are run, and refrigerant is after the discharge of the exhaust outlet of compressor 1 from domestic hot-water's heat exchanger 2
Refrigerant inlet 21 enters domestic hot-water's heat exchanger 2, and the water in water tank 9 is pumped in domestic hot-water's heat exchanger 2 by water pump 8 to be heated
Heating, refrigerant exothermic condensation in domestic hot-water's heat exchanger 2, the water after heat temperature raising is sent back to water tank 9, cold after exothermic condensation
Matchmaker comes out from the refrigerant exit 22 of domestic hot-water's heat exchanger 2, by four-way valve 3 and outdoor heat exchanger 4 and passes through throttle part 5
Enter III mouthful of control valve group 6 after throttling, the liquid mouth for entering the room side air-conditioning heat exchanger 7, room are come out from IV mouthful of control valve group 6
7 pairs of inside air-conditioning heat exchanger indoor refrigeration, after refrigerant 7 interior suction thermal evaporation of side air-conditioning heat exchanger indoors, from indoor, air-conditioning is changed
The port of hot device 7 enters I mouthful of control valve group 6 out, comes out from II mouthful of control valve group 6 and enters compressor 1 by four-way valve 3
Gas returning port return to compressor, complete the refrigerant circulation of primary refrigeration and water heating.
When being freezed at the same time and heating water running, when water temperature in water tank 9 or system condensing temperature are lower than certain setting value
When, the waste heat to be discharged originally is all recycled and is used for heat hot water by the not external heat release of outdoor heat exchanger 4, system, only when
When water temperature or system condensing temperature reach certain setting value in water tank 9, the just external heat release of outdoor heat exchanger 4；
Freezing and heating in water running, when the water temperature in water tank 9 reaches set temperature, water pump 8 is out of service, this reality
Example is applied to run according to single refrigeration modes；When the water temperature of water tank 9 reduces and reaches hot water heating condition, then the starting of water pump 8 operation,
The present embodiment entrance while refrigeration and heating water running；
Freezing and heating in water running, when indoor cryogenic temperature reaches sets requirement, and water tank temperature does not reach and sets
When provisioning request, system stops refrigerating operaton, then according to single heating water running under single hot water model described above, in single system
In hot water operational process, if room temperature increases and reaches cooling activation service condition, system stops single heating water running,
Then it is run in the way of freezing and water heating is run simultaneously.
[heating and hot water model]
The heating of the air-conditioning water heater system of the present embodiment and hot water model operational process are described as follows:
In only heating needs, air-conditioning water heater system is transported according to single heating operation mode under above-mentioned single heating mode
Row；
In only water heating demand, air-conditioning water heater system is according to single heating water running under above-mentioned single hot water model
Mode is run；
When heating has demand simultaneously with water heating, air-conditioning water heater system preferentially heats water running, even if at that time
Heating operation is carried out, also stops heating operation immediately, then by single water heating method of operation fortune under above-mentioned single hot water model
Row after the completion of water heating work, then then is run by single heating operation mode under above-mentioned single heating mode.
The present embodiment can satisfy a variety of operation functions of refrigeration, heating and domestic hot-water, and summer is to indoor refrigeration and mentions
Domestic hot-water supply, the heat recovery hot water preparing that will should be discharged into atmosphere while refrigeration, has extraordinary energy conservation
With environment protecting, winter is to indoor heating and provides domestic hot-water, and spring and autumn then provide life separately as Teat pump boiler
Hot water living, effectively realization one-machine-multi-function, and air-conditioning water heater system, when singly heating water running, refrigerant is without indoor air-conditioning
Heat exchanger 7, also without the accumulation of refrigerant and lubricating oil in indoor air-conditioning heat exchanger 7, the refrigerant in system is fully immersed system
Hot water operation, water heating operational efficiency improve, it is thus also avoided that the damage due to deficiency of refrigerant and lubricating oil to compressor improves
The stability and reliability of system operation, in refrigeration, heating operation also without the accumulation problem of refrigerant and lubricating oil.
Embodiment two
Figure it is seen that the present embodiment and embodiment one the difference is that, the first control in control valve group 6
Valve 61 and third control valve 63 are made of two opposite Unidirectional solenoid valve parallel connections of installation direction.
Embodiment three
From figure 3, it can be seen that the present embodiment and embodiment one the difference is that, the first control in control valve group 6
Valve 61 and third control valve 63 are made of a Unidirectional solenoid valve and a check valve parallel connection, unidirectional electricity in the first control valve 61
The conducting direction of magnet valve is II mouthful to I mouthful direction of control valve group 6, and the conducting direction of check valve is control in the first control valve 61
I mouthful of valve group 6 is to II mouthful of direction, and the conducting direction of Unidirectional solenoid valve is III mouthful to IV of control valve group 6 in third control valve 63
Mouthful direction, the conducting direction of check valve is IV mouthful to III mouthful direction of control valve group 6 in third control valve 63.
The air-conditioning water heater system of embodiment two and embodiment three all have the single hot water model being the same as example 1,
Single refrigeration mode, single heating mode, refrigeration and hot water model, heating and hot water model, herein not repeated description.
Example IV
From fig. 4, it can be seen that the present embodiment and embodiment one the difference is that, the first control in control valve group 6
Valve 61 is a Unidirectional solenoid valve, and conducting direction is I mouthful to II mouthful direction of control valve group 6；Third control valve 63 is one
Unidirectional solenoid valve, conducting direction are III mouthful to IV mouthful direction of control valve group 6.
The present embodiment and embodiment one another difference is that, control valve group 6 does not have the 5. state.
Embodiment five
From fig. 5, it can be seen that the present embodiment and example IV the difference is that: in control valve group 6 first control
For valve 61 using a check valve, conducting direction is I mouthful to II mouthful direction of control valve group 6；Second control valve 62 uses
Be a check valve, conducting direction is II mouthful to III mouthful direction of control valve group 6；Third control valve 63 is using one
Unidirectional solenoid valve, conducting direction are III mouthful to IV mouthful direction of control valve group 6.
Embodiment six
From fig. 6, it can be seen that the present embodiment and embodiment one the difference is that: control valve group 6 by be connected to I mouthful,
The 4th control valve 64 between II mouthful and III mouthful, be connected to III, IV mouthful between the 5th control valve 65 be composed, the 4th control valve 64
It is a three-way magnetic valve, can be connected in I mouthful to II mouthful direction conducting with II mouthful to III mouthful direction and be carried out between two states
Switching；For 5th control valve 65 using a Unidirectional solenoid valve, conducting direction is III mouthful to IV mouthful side of control valve group 6
To.
The present embodiment and embodiment one another difference is that, control valve group 6 does not have the 5. state.
Embodiment seven
From figure 7 it can be seen that the present embodiment and embodiment one the difference is that: control valve group 6 is by being connected to I mouthful
And the 6th control valve 66 between II mouthful, the 7th control valve 67 that is separately connected II mouthful, III mouthful and IV mouthful are composed, the 6th control valve
66 using a Unidirectional solenoid valve, and conducting direction is I mouthful to II mouthful direction of control valve group 6；7th control valve 67 is adopted
It is a three-way magnetic valve, can be connected between two states in II mouthful to III mouthful direction conducting with III mouthful to IV mouthful direction
It switches over.
The present embodiment and embodiment one another difference is that, control valve group 6 does not have the 5. state.
Embodiment eight
From figure 8, it is seen that the present embodiment and embodiment seven the difference is that: the 6th control valve 66 is using one
A check valve, the conducting direction of the check valve are I mouthful to II mouthful direction of control valve group 6.
Example IV, embodiment five, embodiment six, embodiment seven and embodiment eight air-conditioning water heater system all have with
The identical single hot water model of embodiment one, single refrigeration mode, refrigeration and hot water model, herein not repeated description.
Example IV, embodiment five, embodiment six, embodiment seven and embodiment eight can satisfy refrigeration, domestic hot-water
A variety of operation functions, summer is to indoor refrigeration and provides domestic hot-water, the heat that will should be discharged into atmosphere while refrigeration
Amount recycling hot water preparing, winter, spring and autumn then provide domestic hot-water separately as Teat pump boiler, effectively realize that a machine is more
Energy.
In the embodiment of the present invention one into embodiment five, the second control valve 62 in control valve group 6 can also be one pair
To solenoid valve.
Claims (10)
1. a kind of air-conditioning water heater system, including compressor (1), domestic hot-water's heat exchanger (2), there are tetra- ports a, b, c, d
Four-way valve (3), outdoor heat exchanger (4), throttle part (5), indoor air-conditioning heat exchanger (7), water pump (8) and water tank (9),
The exhaust outlet of compressor is connected to the refrigerant inlet (21) of domestic hot-water's heat exchanger, the refrigerant exit (22) of domestic hot-water's heat exchanger
It is connected to a mouthfuls, b mouthfuls are connected to the port of outdoor heat exchanger, and c mouthfuls are connected to the gas returning port of compressor, and four-way valve can be first
Switch between state and the second state, first state refers to that a mouthfuls are connected to b mouthfuls, c mouthfuls with d mouthfuls simultaneously, and the second state refers to a mouthfuls and d mouthfuls, b
Mouth is connected to simultaneously with c mouthfuls, and the water loop of domestic hot-water's heat exchanger, water tank and water pump, which joins end to end, forms hot water heating circuit,
Be characterized in that: further including the control valve group (6) with I, II, III, IV 4 port, I mouthful of control valve group and IV mouthful respectively with
The port of indoor air-conditioning heat exchanger is connected to liquid mouth, and II mouthful is connected to d mouthfuls, and III mouthful passes through throttle part and outdoor heat exchanger
The connection of liquid mouth, control valve group include I mouthful to II mouthful direction be individually connected to the 2. state, II mouthful to III mouthful direction are individually connected to
The 3. state.
2. air-conditioning water heater system according to claim 1, it is characterised in that: the control valve group includes being connected to I, II
The first control valve (61) between mouthful, be connected to II, III mouthful between the second control valve (62) and the third control that is connected between III, IV mouthful
Valve (63) processed.
3. air-conditioning water heater system according to claim 2, it is characterised in that: first control valve and third control valve
It is a bidirectional electromagnetic valve, the second control valve is the one II mouthful Unidirectional solenoid valve be connected to III mouthful of direction.
4. air-conditioning water heater system according to claim 1, it is characterised in that: the control valve group include be connected to I mouthful,
The 4th control valve (64) between II mouthful and III mouthful, be connected to III, IV mouthful between the 5th control valve (65).
5. air-conditioning water heater system according to claim 4, it is characterised in that: the 4th control valve is one three energization
Magnet valve, the 5th control valve are the one III mouthful Unidirectional solenoid valves be connected to IV mouthful of direction.
6. air-conditioning water heater system according to claim 1, it is characterised in that: the control valve group includes being connected to I, II
Mouthful between the 6th control valve (66), be connected to II mouthful, III mouthful and IV mouthful between the 7th control valve (67).
7. air-conditioning water heater system according to claim 6, it is characterised in that: the 6th control valve is one I mouthful and arrives
The Unidirectional solenoid valve of II mouthful of direction conducting, the 7th control valve is a three-way magnetic valve.
8. air-conditioning water heater system according to claim 1, it is characterised in that: the control valve group further includes I mouthful to II
The the 4. state that mouthful direction, III mouthful to IV mouthful direction are connected to simultaneously.
9. air-conditioning water heater system according to claim 1, it is characterised in that: the control valve group further includes II mouthful to I
The the 5. state that mouthful direction, IV mouthful to III mouthful direction are connected to simultaneously.
10. a method of the control any air-conditioning water heater system of claim 1 to 9, which is characterized in that the air conditioner heat
Water heater system has single hot water model, and the operating procedure of the list hot water model is as follows:
One, four-way valve is switched to first state, control valve is switched to the 2. state；
Two, compressor is opened, the refrigerant in the air-conditioning heat exchanger of indoor, which is evacuated, is recycled to compressor, outdoor heat exchanger, life
In hot water heat exchanger living；
Three, after the refrigerant in the air-conditioning heat exchanger of indoor is evacuated recycling, control valve group is switched to the 3. state, four-way
Vavle switching is to the second state；
Four, water pump is opened, the water in water tank enters the refrigerant that domestic hot-water's heat exchanger and exhaust outlet of compressor come and carries out hot friendship
It changes, the water after heat temperature raising is sent back to water tank, and the refrigerant after exothermic condensation is through four-way valve, II mouthful and III mouthful of control valve group and passes through
Enter outdoor heat exchanger after throttle part throttling, refrigerant absorb heat in outdoor heat exchanger evaporate after through four-way valve enter compression
Machine gas returning port returns to compressor, completes primary single water heating circulation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910548642.8A CN110131918A (en) | 2019-06-24 | 2019-06-24 | Air-conditioning water heater system and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548642.8A CN110131918A (en) | 2019-06-24 | 2019-06-24 | Air-conditioning water heater system and its control method |
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ID=67579110
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