CN109654683A - Air conditioner in machine room heat recovery system and its control method - Google Patents
Air conditioner in machine room heat recovery system and its control method Download PDFInfo
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- CN109654683A CN109654683A CN201811467113.7A CN201811467113A CN109654683A CN 109654683 A CN109654683 A CN 109654683A CN 201811467113 A CN201811467113 A CN 201811467113A CN 109654683 A CN109654683 A CN 109654683A
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- air conditioner
- machine room
- heat recovery
- valve
- condenser
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/48—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring prior to normal operation, e.g. pre-heating or pre-cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of air conditioner in machine room heat recovery systems comprising compressor unit, the first condenser, throttling set and evaporator are connected by the heat recovery circuit being arranged in parallel with the first bypass circulation between compressor unit and the first condenser；Heat recovery circuit is equipped with the second condenser, and the second condenser is fixed at the inlet side of domestic or commercial heat exchanger of air conditioner outdoor unit；Heat recovery circuit and the first bypass circulation are equipped with the control valve for switching heat recovery circuit or the first bypass circulation, so that air conditioner in machine room starts or exit heat recovery mode.The air inlet of outdoor unit heat exchanger when the heat that the present invention is discharged using the second condenser is to domestic or commercial air-conditioning heating preheats, and improves the evaporating temperature of outdoor unit heat exchanger, to improve the ability and heating energy efficiency ratio of domestic or commercial air conditioner low temperature heating.The present invention also provides a kind of control methods of air conditioner in machine room heat recovery system, realize the automatic control of air conditioner in machine room heat recovery system.
Description
Technical field
The present invention relates to refrigerating air conditioning device field, more specifically to a kind of air conditioner in machine room heat recovery system and its
Control method.
Background technique
One feature of air conditioner in machine room is year round cooling, and the meaning, which is exactly regardless of outdoor temperature height, to be needed to room
Outer heat dissipation.And air conditioner in machine room is a trend using natural cooling source, wherein it is that air conditioner in machine room is cold using nature that it is cold, which to pump nature, for fluorine
One of best solution.
On the other hand, the domestic or commercial air-conditioning on periphery matched with air conditioner in machine room is then usually constructed with the need of low-temperature heating
It asks, and outdoor temperature is lower, from compressor assembly, the low-temperature heating ability and heat efficiency of domestic or commercial air-conditioning
It is lower than then；Meanwhile when outdoor low temperature, the outdoor unit of household and business air conditioner there is also frosting problem, so that heating cannot
Continued.
Air conditioner in machine room whole year externally distributes amount of heat, is household if the heat utilization that air conditioner in machine room is shed
Or business air conditioner does recuperation of heat supplement, then can greatly save electric energy, improves the utilization rate of the energy, reduces energy consumption.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of improved computer room
Air-conditioning heat recovery system and its control method.
The technical solution adopted by the present invention to solve the technical problems is: a kind of air conditioner in machine room heat recovery system is constructed,
Compressor unit, the first condenser, throttling set and evaporator including being in turn connected to form refrigeration cycle, the pressure
It is connected by the heat recovery circuit being arranged in parallel with the first bypass circulation between contracting machine unit and first condenser；The heat
It recycles circuit and is equipped with the second condenser, second condenser is fixed at domestic or commercial heat exchanger of air conditioner outdoor unit
Inlet side；It is additionally provided in the heat recovery circuit and first bypass circulation for switching the heat recovery circuit or described
The control valve of one bypass circulation, so that the air conditioner in machine room heat recovery system starts or exit heat recovery mode.
In some embodiments, the control valve include the first check valve being arranged in the heat recovery circuit and
The first two-port valve on first bypass circulation is set；The import of first check valve is connected with second condenser
Logical, outlet is connected with first condenser；Alternatively, the import of first check valve is connected with the compressor unit
Logical, outlet is connected with second condenser.
In some embodiments, first two-port valve is the two-way electromagnetism being electrically connected with the master controller of air conditioner in machine room
Valve, alternatively, first two-port valve is manual two-port valve；First two-port valve is switch valve or regulating valve.
In some embodiments, the control valve includes triple valve；The triple valve is manual three-way valve or described three
Port valve is the three-way solenoid valve being electrically connected with the master controller of air conditioner in machine room；The import of the triple valve and the compressor unit
It is connected, two outlets of the triple valve are connected with the heat recovery circuit and first bypass circulation respectively；Alternatively,
Two imports of the triple valve are connected with the heat recovery circuit and first bypass circulation respectively, the triple valve
Outlet is connected with first condenser.
In some embodiments, the air conditioner in machine room heat recovery system further includes the temperature sensing for detecting outdoor temperature
Device, the temperature sensor are electrically connected with the master controller of air conditioner in machine room.
In some embodiments, the air conditioner in machine room heat recovery system further includes setting in first condenser and described
Refrigerated medium pump unit between throttling set.
The present invention also provides a kind of control methods of air conditioner in machine room heat recovery system comprising:
S1: receiving and detects the operational mode control signal of domestic or commercial air-conditioning, and delivers a signal to air conditioner in machine room master
Controller；
S2: the air conditioner in machine room master controller judges whether the domestic or commercial air-conditioning is in heating mode；
S3: if the domestic or commercial air-conditioning is in heating mode, the air conditioner in machine room main controller controls control valve is connect
Logical heat recovery circuit, air conditioner in machine room start heat recovery mode；
S4: if the domestic or commercial air-conditioning is not at heating mode, the air conditioner in machine room main controller controls control valve
The first bypass circulation is connected, air conditioner in machine room exits heat recovery mode.
In some embodiments, in step s3, if after the domestic or commercial air-conditioning is in heating mode,
The air conditioner in machine room main controller controls control valve connects heat recovery circuit, further includes following step before starting heat recovery mode
It is rapid:
S311: the air conditioner in machine room master controller obtains outdoor environment temperature Ta and set temperature Tb；
S312: if Ta > Tb, the air conditioner in machine room main controller controls control valve connects the first bypass circulation, air conditioner in machine room
Exit heat recovery mode；
S313: if Ta≤Tb, the air conditioner in machine room main controller controls control valve connects heat recovery circuit, and air conditioner in machine room opens
Dynamic heat recovery mode.
In some embodiments, in step s3, if after the domestic or commercial air-conditioning is in heating mode,
The air conditioner in machine room main controller controls control valve connects heat recovery circuit, further includes following step before starting heat recovery mode
It is rapid:
S321: the air conditioner in machine room master controller obtains outdoor environment temperature Ta, set temperature Tb and return difference temperature b；
S322: if Ta > Tb, the air conditioner in machine room main controller controls control valve connects the first bypass circulation, air conditioner in machine room
Exit heat recovery mode；
S323: if Ta≤Tb-b, the air conditioner in machine room main controller controls control valve connects heat recovery circuit, air conditioner in machine room
Start heat recovery mode.
In some embodiments, further includes:
S5: when detecting alarm or abnormal signal, the air conditioner in machine room main controller controls control valve is connected by the of first
Logical circuit, air conditioner in machine room exit heat recovery mode.
Implement the present invention and at least have the advantages that air conditioner in machine room heat recovery system of the invention, makes full use of machine
The system of the demand and domestic or commercial air-conditioning of the characteristics of room air-conditioning system year round cooling and domestic or commercial air conditioner low temperature heating
The characteristics of thermal energy power declines meeting rapid decay with outdoor temperature, increases one between compressor unit and the first condenser
Second condenser, the air inlet of outdoor unit heat exchanger when using the heat of the second condenser release to domestic or commercial air-conditioning heating
Preheat, improve the evaporating temperature of outdoor unit heat exchanger, to improve the heating capacity of domestic or commercial air-conditioning, improve household or
The ability and heating energy efficiency ratio of business air conditioner low-temperature heating, while the knot of household and commercial air conditioner outdoor unit can also be greatly reduced
White problem and time continue heating.
The control method of air conditioner in machine room heat recovery system of the invention, it can be achieved that air conditioner in machine room heat recovery system automatic control
System.By the way that set temperature Tb is arranged, starts heat recovery mode when meeting Ta≤Tb, the reliability of system can be improved.In addition,
When air conditioner in machine room heat recovery system breaks down, for example, original can also be utilized when the second condenser does not work or breaks down
The first condenser having carries out condensation heat release, proper heat reduction and operation without influencing air conditioner in machine room, to original air conditioner in machine room
Reliability has no effect.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the structural schematic diagram of air conditioner in machine room heat recovery system in first embodiment of the invention；
Fig. 2 is the structural schematic diagram of air conditioner in machine room heat recovery system in second embodiment of the invention；
Fig. 3 is the control flow chart of air conditioner in machine room heat recovery system in some embodiments of the invention.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
Fig. 1-2 show the air conditioner in machine room heat recovery system in some embodiments of the invention, the air conditioner in machine room recuperation of heat system
System includes compressor unit 4, the first condenser 6, throttling set 2 and the evaporator for being in turn connected to form refrigeration cycle
3.Pass through the heat recovery circuit 71 being arranged in parallel and the connection of the first bypass circulation 72 between compressor unit 4 and the first condenser 6.
Wherein, heat recovery circuit 71 is equipped with the second condenser 5, and the second condenser 5 is fixed at domestic or commercial air-conditioner outdoor unit
The inlet side of heat exchanger 9.It is additionally provided in heat recovery circuit 71 and the first bypass circulation 72 for switching selection heat recovery circuit 71
Or first bypass circulation 72 control valve, so as to air conditioner in machine room heat recovery system starting or exit heat recovery mode.
Preferably, which, which may also include, is arranged between the first condenser 6 and throttling set 2
Refrigerated medium pump unit 1 is economized on resources with bringing cooling capacity to computer room using naturally cold.Refrigerated medium pump unit 1, steams throttling set 2
Hair device 3, compressor unit 4, the first condenser 6 are sequentially connected in series to form complete closed circuit.Refrigerated medium pump unit 1 can wrap
Include the refrigeration being arranged in parallel with the liquid storage device 11 of the outlet connection of the first condenser 6 and with the outlet connection of liquid storage device 11
Agent pump loop and the second bypass circulation.Wherein, refrigerated medium pump unit 1 may include the liquid storage device 11 being connect with the first condenser 6, with
The refrigerated medium pump circuit being arranged in parallel and the second bypass circulation and switch the refrigerant for controlling that liquid storage device 11 connects
First controller of pump loop or second bypass circulation, the refrigerated medium pump circuit are equipped with refrigerated medium pump 14.Compressor
Unit 4 may include the compressor loop being arranged in parallel and third bypass circulation and switch the compressor loop for controlling
Or the second controller of the third bypass circulation, the compressor loop are equipped with compressor 42.It is to be appreciated that the computer room
The refrigeration mode of air-conditioning heat recovery system may include compressor refrigeration mode, free cooling refrigeration mode and compressor+nature
Cooling refrigeration mode.When outdoor temperature is higher, compressor refrigeration mode may be selected；When outdoor temperature is lower, may be selected certainly
So cooling refrigeration mode is economized on resources with making full use of nature is cold to bring cooling capacity to computer room；When outdoor temperature falls between
When, compressor+free cooling refrigeration mode may be selected.Specifically, suitable refrigeration mould can be selected according to outdoor environment temperature
Formula, to meet data center's whole year service requirement.
In some embodiments, refrigerated medium pump circuit may include refrigerated medium pump 14 and second one-way valve 13, the second bypass
Circuit may include the second two-port valve 12.Refrigerated medium pump is also provided with two-port valve on circuit, to improve the reliability of system.At it
, can also be by the way that triple valve be arranged in his embodiment, Lai Jinhang refrigerated medium pump circuit or the second bypass circulation are switched on.?
In some embodiments, compressor unit 4 may include the compressor loop being arranged in parallel and third bypass circulation.Wherein, compressor
Circuit may include compressor 42 and third check valve 43, and third bypass circulation may include third two-port valve 41.Compressor loop
On be also provided with two-port valve, to improve the reliability of system.In other embodiments, can also be come by the way that triple valve is arranged
Carry out being switched on for compressor loop or third bypass circulation.
Further, which may also include the temperature sensor for detecting outdoor temperature, institute
Temperature sensor is stated to be electrically connected with the master controller of air conditioner in machine room.The outdoor temperature that can be detected according to the temperature sensor,
Realize the automatic control of the refrigeration mode of air conditioner in machine room heat recovery system.
Second condenser 5 is arranged between compressor unit 4 and the first condenser 6, can be integrated in domestic or commercial sky
It adjusts on outdoor unit.When air conditioner in machine room starts heat recovery mode, the refrigerant come out from compressor unit 4 first flows through the second condensation
5 heat release of device is cooling, and it is cooling to pass through the further heat release of the first condenser 6.Second condenser 5 be physically be fixed on household or
The inlet side of commercial air conditioner outdoor unit heat exchanger 9, but belong to air conditioner in machine room heat recovery system in system control.By existing skill
Art it is found that domestic or commercial heat exchanger of air conditioner outdoor unit 9 refrigeration when be condenser, heating when be evaporator.Of the invention
Core is the characteristics of making full use of computer-room air conditioning system year round cooling and demand and the family of domestic or commercial air conditioner low temperature heating
With or business air conditioner heating capacity with outdoor temperature decline can rapid decay the characteristics of, in existing computer-room air conditioning system
Increase by second condenser 5, outdoor unit when using the heat of the second condenser 5 release to domestic or commercial air-conditioning heating changes
The air inlet of hot device 9 does a preheating, the evaporating temperature of outdoor unit heat exchanger 9 is improved, to improve the system of domestic or commercial air-conditioning
Thermal energy power, improves the ability and heating energy efficiency ratio of low-temperature heating, while can also greatly reduce household and commercial air conditioner outdoor unit
Frosting problem and the time, make heating continued.
As shown in Figure 1, in the first embodiment, the control valve include be arranged in heat recovery circuit 71 it is first unidirectional
Valve 81 and the first two-port valve 82 being arranged on the first bypass circulation 72.The import of first check valve 81 and the second condenser 5
It is connected, outlet is connected with the first condenser 6.In other embodiments, it is also possible to the import and pressure of the first check valve 81
Contracting machine unit 4 is connected, and outlet is connected with the second condenser 5.First two-port valve 82 can be used to control the first bypass circulation
72 on-off can be the two-way electromagnetic valve that is electrically connected with the master controller of air conditioner in machine room, be also possible to manually adjust.The
One two-port valve 82 can be switching mode, be also possible to two-way adjustable type.When the first two-port valve 82 is closed, air conditioner in machine room
Heat recovery system enters heat recovery mode, and the refrigerant flowed out from compressor unit 4 first flows through 5 heat release of the second condenser cooling,
It is cooling to pass through the further heat release of the first condenser 6, using the heat of the second condenser 5 releasing to domestic or commercial air-conditioning heating
When the inlet side of outdoor unit heat exchanger 9 do recuperation of heat supplement, thus improve domestic or commercial air conditioner low temperature heating ability and
Heating energy efficiency ratio.When the first two-port valve 82 is opened, air conditioner in machine room heat recovery system exits heat recovery mode, from compressor unit
The refrigerant of 4 outflows flows to 6 heat release of the first condenser cooling via the first bypass circulation 72, and the first check valve 81 can be to avoid system
Cryogen reflux；At this point, the refrigerant of air conditioner in machine room is without going past the second condenser 5, but it is cold to be directly entered the first condenser 6
But.In some embodiments, the 4th two-port valve can be also equipped in heat recovery circuit 71, to improve the reliability of system.
As shown in Fig. 2, in a second embodiment, the control valve includes triple valve 83.The import of triple valve 83 can be with pressure
Contracting machine unit 4 is connected, and two outlets of triple valve 83 are connected with heat recovery circuit 71 and the first bypass circulation 72 respectively.?
In other embodiments, two imports for being also possible to triple valve 83 are connected with heat recovery circuit 71 and the first bypass circulation 72 respectively
Logical, the outlet of triple valve 83 is connected with the first condenser 6.Triple valve 83 can be motorized adjustment, be also possible to adjust manually
Section.When heat recovery circuit 71 is connected in regulating three-way valve 83, air conditioner in machine room heat recovery system enters heat recovery mode, from pressure
The refrigerant that contracting machine unit 4 flows out first flows through 5 heat release of the second condenser cooling, and it is cold to pass through the further heat release of the first condenser 6
But, heat is done in the inlet side of the outdoor unit heat exchanger 9 when the heat released using the second condenser 5 is to domestic or commercial air-conditioning heating
Recycling supplement, to improve the ability and heating energy efficiency ratio of domestic or commercial air conditioner low temperature heating.Regulating three-way valve 83 makes
When one bypass circulation 72 is connected, air conditioner in machine room heat recovery system exits heat recovery mode, the refrigerant flowed out from compressor unit 4
It is cooling that 6 heat release of the first condenser is flowed to via the first bypass circulation 72；At this point, the refrigerant of air conditioner in machine room is cold without going past second
Condenser 5, but it is cooling to be directly entered the first condenser 6.
Air conditioner in machine room in the present invention can pump the cold air conditioner in machine room of nature for fluorine, and the heat of the condenser referred in the present invention is handed over
The form of changing can exchange for wind fluorine, be also possible to fluorine water coke slurry.The two-port valve referred in the present invention can be switch valve, can also be with
It is regulating valve；It can be the two-way electromagnetic valve being electrically connected with the master controller of air conditioner in machine room, be also possible to manual two-port valve.This
The triple valve referred in invention can be the three-way solenoid valve being electrically connected with the master controller of air conditioner in machine room, be also possible to manual three
Port valve.Preferably, the two-port valve referred in the present invention is the two-way electromagnetic valve being electrically connected with the master controller of air conditioner in machine room, this hair
The triple valve referred in bright is the three-way solenoid valve being electrically connected with the master controller of air conditioner in machine room, air conditioner in machine room heat may be implemented
The automatic control of recovery system.
Air conditioner in machine room heat recovery system of the invention, when the operational mode of household or business air conditioner is in heating mode,
Air conditioner in machine room heat recovery system starts heat recovery mode, preheats to the air inlet of domestic or commercial A/C evaporator, improves household
Or the evaporating temperature of business air conditioner realizes that heat is returned to improve the ability and heating energy efficiency ratio of domestic or commercial air conditioner low temperature heating
The purpose of receipts.When the operational mode of household or business air conditioner is not at heating mode, such as when the fortune of household or business air conditioner
Row mode is in refrigeration mode, defrosting mode or when standby mode, and air conditioner in machine room heat recovery system exits heat recovery mode, protects
Hold original operating mode operation.
It is to be appreciated that air conditioner in machine room heat recovery system system reliability with higher of the invention, in air conditioner in machine room
When heat recovery system breaks down, for example, when the second condenser 5 does not work or breaks down, original the can also be utilized
One condenser 6 carries out condensation heat release, proper heat reduction and operation without influencing air conditioner in machine room, to the reliability of original air conditioner in machine room
It has no effect；Alternatively, when air conditioner in machine room heat recovery system breaks down, for example, when refrigerant air pump inoperative or event occurs
When barrier, compressor refrigeration can also be utilized, the reliability of system is improved.
The present invention also provides a kind of control methods of air conditioner in machine room heat recovery system, comprising:
S1: receiving and detects the operational mode control signal of domestic or commercial air-conditioning, and delivers a signal to air conditioner in machine room master
Controller；
S2: the air conditioner in machine room master controller judges whether the domestic or commercial air-conditioning is in heating mode；
S3: if the domestic or commercial air-conditioning is in heating mode, the air conditioner in machine room main controller controls control valve is connect
Logical heat recovery circuit 71, air conditioner in machine room start heat recovery mode；
S4: if the domestic or commercial air-conditioning is not at heating mode, the air conditioner in machine room main controller controls control valve
The first bypass circulation 72 is connected, air conditioner in machine room exits heat recovery mode.
The operational mode of the domestic or commercial air-conditioning may include heating mode, refrigeration mode, defrosting mode, standby mould
Formula.When the operational mode of household or business air conditioner is in heating mode, air conditioner in machine room heat recovery system starts heat recovery mode,
The air inlet of domestic or commercial A/C evaporator is preheated, the evaporating temperature of domestic or commercial air-conditioning is improved, with improve household or
The ability and heating energy efficiency ratio of business air conditioner low-temperature heating, realize the purpose of recuperation of heat.When household or the operation mould of business air conditioner
Formula is in refrigeration mode, defrosting mode or when standby mode, and air conditioner in machine room heat recovery system exits heat recovery mode, keeps former
Some operating mode operations.
It is illustrated in figure 3 the control method of air conditioner in machine room heat recovery system in some embodiments of the invention, including following step
It is rapid:
S1: receiving and detects the operational mode control signal of domestic or commercial air-conditioning, and delivers a signal to air conditioner in machine room master
Controller；
S2: the air conditioner in machine room master controller judges whether the domestic or commercial air-conditioning is in heating mode；
S3: if the domestic or commercial air-conditioning is in heating mode, following step S311-S313 is executed:
S311: the air conditioner in machine room master controller obtains outdoor environment temperature Ta and set temperature Tb, judges environmental aspect；
S312: if Ta > Tb, the air conditioner in machine room main controller controls control valve connects the first bypass circulation 72, and computer room is empty
Tune exits heat recovery mode；
S313: if Ta≤Tb, the air conditioner in machine room main controller controls control valve connects heat recovery circuit 71, air conditioner in machine room
Start heat recovery mode；
S4: if the domestic or commercial air-conditioning is not at heating mode, the air conditioner in machine room main controller controls control valve
The first bypass circulation 72 is connected, heat recovery mode is exited.
By the way that set temperature Tb is arranged, starts heat recovery mode when meeting Ta≤Tb, the reliability of system can be improved, keep away
Exempt from the starting heat recovery mode in the higher situation of outdoor environment temperature to preheat domestic or commercial air-conditioning, so that influencing it can
By property.
In some cases, such as in transition season, outdoor temperature is higher, and doing preheating to domestic or commercial air-conditioning may
Have an impact to its reliability.In this regard, the reliability of setting return difference temperature b, Lai Tigao system can be passed through.Specifically, step S3
It can be with are as follows:
S3: if the domestic or commercial air-conditioning is in heating mode, following step S321-S323 is executed:
S321: the air conditioner in machine room master controller obtains outdoor environment temperature Ta, set temperature Tb and return difference temperature b；
S322: if Ta > Tb, the air conditioner in machine room main controller controls control valve connects the first bypass circulation 72, and computer room is empty
Tune exits heat recovery mode；
S323: if Ta≤Tb-b, the air conditioner in machine room main controller controls control valve connects heat recovery circuit 71, and computer room is empty
Adjust starting heat recovery mode.
In further embodiments, step S322 may be:
S322: if Ta > Tb+b, the air conditioner in machine room main controller controls control valve connects the first bypass circulation 72, computer room
Air-conditioning exits heat recovery mode；
Further, the control method of the air conditioner in machine room heat recovery system can also include:
S5: when detecting alarm or abnormal signal, the air conditioner in machine room main controller controls control valve is connected by the of first
Logical circuit 72, air conditioner in machine room exits heat recovery mode.
In this way, when air conditioner in machine room heat recovery system breaks down, for example, when the second condenser 5 does not work or occurs former
When barrier, condensation heat release can also be carried out using original first condenser 6, proper heat reduction and fortune without influencing air conditioner in machine room
Row, has no effect to the reliability of original air conditioner in machine room.
Further, the control method of the air conditioner in machine room heat recovery system can also include: and work as to detect alarm or different
When regular signal, air conditioner in machine room main controller controls connect the second bypass circulation of refrigerated medium pump unit 1, start compressor refrigeration mould
Formula.In this way, when air conditioner in machine room heat recovery system breaks down, for example, may be used also when refrigerant air pump inoperative or when breaking down
To utilize compressor refrigeration, the reliability of system is improved.
It is to be appreciated that core of the invention is to realize the condensing units of air conditioner in machine room, this condensing units can be prolonged
It stretches and is used to the other field except domestic or commercial air-conditioning.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
Above embodiments only express the preferred embodiment of the present invention, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as；It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, above-mentioned technical characterstic can be freely combined, several deformations can also be made
And improvement, these are all within the scope of protection of the present invention；Therefore, all equivalents done with scope of the invention as claimed with
Modification, should belong to the covering scope of the claims in the present invention.
Claims (10)
1. a kind of air conditioner in machine room heat recovery system, including be in turn connected to form refrigeration cycle compressor unit (4), first
Condenser (6), throttling set (2) and evaporator (3), which is characterized in that the compressor unit (4) and first condensation
Heat recovery circuit (71) and the first bypass circulation (72) connection between device (6) by being arranged in parallel；The heat recovery circuit
(71) the second condenser (5) are equipped with, second condenser (5) is fixed at domestic or commercial heat exchanger of air conditioner outdoor unit
(9) inlet side；It is additionally provided on the heat recovery circuit (71) and first bypass circulation (72) and is returned for switching the heat
The control valve of road (71) or first bypass circulation (72) is withdrawn, so that the air conditioner in machine room heat recovery system starts or exits
Heat recovery mode.
2. air conditioner in machine room heat recovery system according to claim 1, which is characterized in that the control valve includes being arranged in institute
The first two-way stating the first check valve (81) on heat recovery circuit (71) and being arranged on first bypass circulation (72)
Valve (82)；The import of first check valve (81) is connected with second condenser (5), outlet and first condenser
(6) it is connected；Alternatively, the import of first check valve (81) is connected with the compressor unit (4), outlet and described the
Two condensers (5) are connected.
3. air conditioner in machine room heat recovery system according to claim 2, which is characterized in that first two-port valve (82) be with
The two-way electromagnetic valve of the master controller electrical connection of air conditioner in machine room, alternatively, first two-port valve (82) is manual two-port valve；It is described
First two-port valve (82) is switch valve or regulating valve.
4. air conditioner in machine room heat recovery system according to claim 1, which is characterized in that the control valve includes triple valve
(83)；The triple valve (83) is manual three-way valve or the triple valve (83) is to be electrically connected with the master controller of air conditioner in machine room
The three-way solenoid valve connect；The import of the triple valve (83) is connected with the compressor unit (4), the triple valve (83)
Two outlets are connected with the heat recovery circuit (71) and first bypass circulation (72) respectively；Alternatively, the triple valve
(83) two imports are connected with the heat recovery circuit (71) and first bypass circulation (72) respectively, the triple valve
(83) outlet is connected with first condenser (6).
5. air conditioner in machine room heat recovery system according to claim 1, which is characterized in that the air conditioner in machine room heat recovery system
It further include the temperature sensor for detecting outdoor temperature, the temperature sensor is electrically connected with the master controller of air conditioner in machine room.
6. air conditioner in machine room heat recovery system according to claim 1-5, which is characterized in that the air conditioner in machine room heat
Recovery system further includes the refrigerated medium pump unit (1) being arranged between first condenser (6) and the throttling set (2).
7. a kind of control method of air conditioner in machine room heat recovery system as claimed in any one of claims 1 to 6, which is characterized in that packet
It includes:
S1: receiving and detects the operational mode control signal of domestic or commercial air-conditioning, and delivers a signal to air conditioner in machine room main control
Device；
S2: the air conditioner in machine room master controller judges whether the domestic or commercial air-conditioning is in heating mode；
S3: if the domestic or commercial air-conditioning is in heating mode, the air conditioner in machine room main controller controls control valve connects heat
It recycles circuit (71), air conditioner in machine room starts heat recovery mode；
S4: if the domestic or commercial air-conditioning is not at heating mode, the air conditioner in machine room main controller controls control valve is connected
First bypass circulation (72), air conditioner in machine room exits heat recovery mode.
8. the control method of air conditioner in machine room heat recovery system according to claim 7, which is characterized in that in step s3,
If the air conditioner in machine room main controller controls control valve is connected after the domestic or commercial air-conditioning is in heating mode
Heat recovery circuit (71), further comprising the steps of before starting heat recovery mode:
S311: the air conditioner in machine room master controller obtains outdoor environment temperature Ta and set temperature Tb；
S312: if Ta > Tb, the air conditioner in machine room main controller controls control valve connects the first bypass circulation (72), air conditioner in machine room
Exit heat recovery mode；
S313: if Ta≤Tb, the air conditioner in machine room main controller controls control valve connects heat recovery circuit (71), and air conditioner in machine room opens
Dynamic heat recovery mode.
9. the control method of air conditioner in machine room heat recovery system according to claim 7, which is characterized in that in step s3,
If the air conditioner in machine room main controller controls control valve is connected after the domestic or commercial air-conditioning is in heating mode
Heat recovery circuit (71), further comprising the steps of before starting heat recovery mode:
S321: the air conditioner in machine room master controller obtains outdoor environment temperature Ta, set temperature Tb and return difference temperature b；
S322: if Ta > Tb, the air conditioner in machine room main controller controls control valve connects the first bypass circulation (72), air conditioner in machine room
Exit heat recovery mode；
S323: if Ta≤Tb-b, the air conditioner in machine room main controller controls control valve connects heat recovery circuit (71), air conditioner in machine room
Start heat recovery mode.
10. the control method of air conditioner in machine room heat recovery system according to claim 7, which is characterized in that further include:
S5: when detecting alarm or abnormal signal, the air conditioner in machine room main controller controls control valve is connected first and is bypassed back
Road (72), air conditioner in machine room exits heat recovery mode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811467113.7A CN109654683A (en) | 2018-12-03 | 2018-12-03 | Air conditioner in machine room heat recovery system and its control method |
| PCT/CN2019/083732 WO2020113890A1 (en) | 2018-12-03 | 2019-04-22 | Machine room air conditioner heat recovery system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811467113.7A CN109654683A (en) | 2018-12-03 | 2018-12-03 | Air conditioner in machine room heat recovery system and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109654683A true CN109654683A (en) | 2019-04-19 |
Family
ID=66112646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811467113.7A Pending CN109654683A (en) | 2018-12-03 | 2018-12-03 | Air conditioner in machine room heat recovery system and its control method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109654683A (en) |
| WO (1) | WO2020113890A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020113890A1 (en) * | 2018-12-03 | 2020-06-11 | 深圳市艾特网能技术有限公司 | Machine room air conditioner heat recovery system and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247654A (en) * | 2016-10-08 | 2016-12-21 | 广东美的暖通设备有限公司 | A kind of two multi-functional multi-connected air conditioning system of control and control methods thereof |
| CN106524556A (en) * | 2016-10-24 | 2017-03-22 | 广东美的暖通设备有限公司 | Air conditioner system and control method thereof |
| CN209386491U (en) * | 2018-12-03 | 2019-09-13 | 深圳市艾特网能技术有限公司 | Air conditioner in machine room heat recovery system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204043101U (en) * | 2014-08-06 | 2014-12-24 | 新疆中兴能源有限公司 | A kind of computer-room air conditioning system with heat recovery function |
| CN105135737B (en) * | 2015-07-23 | 2017-05-31 | 广东美的暖通设备有限公司 | Combined air-conditioning system |
| CN109654683A (en) * | 2018-12-03 | 2019-04-19 | 深圳市艾特网能技术有限公司 | Air conditioner in machine room heat recovery system and its control method |
-
2018
- 2018-12-03 CN CN201811467113.7A patent/CN109654683A/en active Pending
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2019
- 2019-04-22 WO PCT/CN2019/083732 patent/WO2020113890A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247654A (en) * | 2016-10-08 | 2016-12-21 | 广东美的暖通设备有限公司 | A kind of two multi-functional multi-connected air conditioning system of control and control methods thereof |
| CN106524556A (en) * | 2016-10-24 | 2017-03-22 | 广东美的暖通设备有限公司 | Air conditioner system and control method thereof |
| CN209386491U (en) * | 2018-12-03 | 2019-09-13 | 深圳市艾特网能技术有限公司 | Air conditioner in machine room heat recovery system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020113890A1 (en) * | 2018-12-03 | 2020-06-11 | 深圳市艾特网能技术有限公司 | Machine room air conditioner heat recovery system and control method thereof |
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| WO2020113890A1 (en) | 2020-06-11 |
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