CN106871348B - A kind of control method of pump type heat aircraft floor air conditioner group - Google Patents

A kind of control method of pump type heat aircraft floor air conditioner group Download PDF

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Publication number
CN106871348B
CN106871348B CN201710067087.8A CN201710067087A CN106871348B CN 106871348 B CN106871348 B CN 106871348B CN 201710067087 A CN201710067087 A CN 201710067087A CN 106871348 B CN106871348 B CN 106871348B
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temperature
except
refrigeration
refrigeration system
defrosting
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CN106871348A (en
Inventor
欧冠锋
林创辉
吴高峰
李兴勇
许旺龙
陈海
蔡乐坤
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Guangdong Shenling Air Conditioning Equipment Co Ltd
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Guangdong Shenling Air Conditioning Equipment Co Ltd
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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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • 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
    • 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
    • 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
    • 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
    • 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
    • F24F11/62—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
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure
    • F24F2140/12—Heat-exchange fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/54—Heating and cooling, simultaneously or alternatively

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a kind of control methods of pump type heat aircraft floor air conditioner group, using heat pump mode, utilize inverse Carnot cycle, it is inputted by a small amount of high-grade electric energy, low grade heat energy in atmosphere is transferred to using in the air of side, significantly improving energy efficiency ratio, system Energy Efficiency Ratio itself may be up between 3.0~3.5, energy consumption is down to the 14%~16% of electric heating energy consumption, saves mass energy.Meanwhile a variety of suitable defrosting functions are provided in this system, it ensure that unit normal table is run, reliability is significantly promoted, effective solution conventional airplane ground air conditioner unit in the prior art, in winter heating operation, it is heated only with electric heater, energy consumption is high, the defects of and deficiency, it is energy saving, promote control precision, cabin comfort is promoted, and is provided with a variety of suitable defrosting functions in systems, ensure that unit normal table is run.

Description

A kind of control method of pump type heat aircraft floor air conditioner group
Technical field
The present invention relates to a kind of airplane ground support equipment more particularly to a kind of controls of pump type heat aircraft floor air conditioner group Method processed.
Background technique
Have general aircraft floor air conditioner group at present, is installed on airport air bridge to hanging or seat in the following, can be with Shelter bridge is mobile, and all-fresh air air heats by the direct sweat cooling of cooling in summer system or winter electric heater of unit Afterwards, cold air or hot-air are insulated delivery hose and quick coupling and are sent into aircraft cabin and driving by aircraft air condition air outlet Room provides the cooling air of treated certain flow, temperature, pressure to rest in the aircraft on airport.
The use of aircraft floor air conditioner group can reduce the use of the APU of aircraft, reduce disappearing for expensive Aviation Fuel Consumption extends the service life of aircraft air-conditioning system, reduces atmosphere pollution, realizes energy-saving and emission-reduction.Greatly develop aircraft earth surface air-conditioning Machine is the important measure for constructing energy conservation type society.
But in winter, conventional airplane ground air conditioner unit refrigeration is heated only with electric heater, and energy consumption is high, electric heater sheet Body Energy Efficiency Ratio is only 0.95~0.98, causes a large amount of energy waste, and unit complete machine operational efficiency is low, energy consumption is high, control precision It is not high, do not meet the requirement of " energy-saving and emission-reduction " policy and construction of energy economizing type, friendly environment society that current country advocates
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of pump type heat aircraft floor air conditioner groups Control method, it is intended to solve the problems, such as that aircraft earth surface air-conditioning product unit complete machine operational efficiency is low, energy consumption is high.
Technical scheme is as follows:
A kind of control method of pump type heat aircraft floor air conditioner group, wherein comprising steps of
A, the control model of a variety of air-conditioner sets is stored in advance；
B, one of various control mode is chosen as needed, into the control model working condition.
The control method of the pump type heat aircraft floor air conditioner group, wherein in the step A, various control mode It include: that cooling operation mode, ventilation operational mode and heating operation mode, air hose mode setting have double air hose modes, Dan Fengguan 1 Mode, 2 mode of Dan Fengguan.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step B includes:
B1, high pressure blower one and the starting operation of high pressure blower two, axial flow blower starting operation, four-way valve one and two lose Electricity, central control system is according to setting leaving air temp, when wind pushing temperature sensor detection temperature is higher than outlet air set temperature+refrigeration Can set temperature difference when, load operating is carried out by the sequence of system one, two, three, four to refrigeration system；Work as wind pushing temperature sensor Detect temperature lower than outlet air set temperature-refrigeration can set temperature difference when, it is smooth by system four, three, two, one to refrigeration system Carry out unloading operation；Wind pushing temperature sensor detection temperature is in outlet air set temperature+refrigeration can set temperature difference and outlet air Set temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation, and control model is refrigerating operaton mould at this time Formula, double air hose modes.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step B further include:
B2, the starting operation of high pressure blower one, high pressure blower two and refrigeration system four are shut down, axial flow blower starting fortune Row, the power loss of four-way valve one and two, central control system is according to setting leaving air temp, when wind pushing temperature sensor detection temperature is higher than Outlet air set temperature+refrigeration can set temperature difference when, load operating is carried out by the sequence of system one, two, three to refrigeration system；When Wind pushing temperature sensor detect temperature lower than outlet air set temperature-refrigeration can set temperature difference when, to refrigeration system press system Three, two, one unloading operation is gone on smoothly；Wind pushing temperature sensor detection temperature, which is in outlet air set temperature+refrigeration, can set temperature Spend difference and outlet air set temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation, at this time control model For cooling operation mode, 2 mode of Dan Fengguan.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step B further include:
B3, the starting operation of high pressure blower two, high pressure blower one and refrigeration system three are shut down, axial flow blower starting fortune Row, the power loss of four-way valve one and two, central control system is according to setting leaving air temp, when wind pushing temperature sensor detection temperature is higher than Outlet air set temperature+refrigeration can set temperature difference when, load operating is carried out by the sequence of system one, two, four to refrigeration system；When Wind pushing temperature sensor detect temperature lower than outlet air set temperature-refrigeration can set temperature difference when, to refrigeration system press system Four, two, one unloading operation is gone on smoothly；Wind pushing temperature sensor detection temperature, which is in outlet air set temperature+refrigeration, can set temperature Spend difference and outlet air set temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation, at this time control model For cooling operation mode, 1 mode of Dan Fengguan.
The control method of the pump type heat aircraft floor air conditioner group, wherein further comprise the steps of:
C, when refrigeration system three and four evaporator of refrigeration system are because of temperature reduction, when there is existing frosting, the steaming of refrigeration system Pressure decline is sent out, the pressure that the refrigeration system three and four evaporating pressure controller of refrigeration system detect is lower than pressure set points When, the hot gas bypass solenoid valve of refrigeration system three and refrigeration system four is opened, and the high temperature refrigerant of compressor exhaust pipe is overheated Steam is discharged into behind the expansion valve of refrigeration system three and refrigeration system four, and high temperature hot gas is allowed to enter the refrigeration of evaporator heating frosting Four evaporator of system three and refrigeration system removes frosting；After frosting defrosting, evaporating pressure rises, the refrigeration system Three and the pressure that detects of four evaporating pressure controller of refrigeration system be higher than pressure set points plus-pressure and reset the sum of setting difference When, the hot gas bypass solenoid valve of refrigeration system three and refrigeration system four is closed, and stopping allows high pressure refrigerant vapor to enter evaporator.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step B further include:
B4, high pressure blower one and the starting operation of high pressure blower two, other all refrigeration systems and axial flow blower stop Machine, control model is ventilation operational mode, 2 mode of Dan Fengguan at this time.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step B further include:
B5, the starting operation of high pressure blower two, high pressure blower one and other all refrigeration systems and axial flow blower stop Machine, control model is ventilation operational mode, 1 mode of Dan Fengguan at this time.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step B further include:
B6, from the compressor shutdown of defrosting and refrigeration system three and four, control model is heating operation mode at this time, if practical Inlet air temperature TInto, system starting inlet air temperature TInto 1, two system starting inlet air temperature TInto 2；
Work as TInto≤TInto 1When, heat pump refrigeration system one starts heating operation, and four-way valve one must be electric, works as TInto>TInto 1When, heat pump system Cooling system one is shut down, one power loss of four-way valve；
Work as TInto≤TInto 2When, the starting operation of heat pump refrigeration system two, four-way valve one must be electric, works as TInto>TInto 2When, heat pump refrigerating system System two is shut down, one power loss of four-way valve；
When display operation Systematic selection heating operation mode, practical leaving air temp TOut, outlet air set temperature TIt sets out, can set Surely precision T is controlledSetting accuracy
Work as TIt sets out-TSetting accuracy≤TOut≤TIt sets out+TSetting accuracyWhen, auxiliary heater is not loaded with also not imperial carry；
Work as TOut> TIt sets out+TSetting accuracyWhen, auxiliary heater carries out controlling imperial carrying row using solid-state relay；
Work as TOut< TIt sets out+TSetting accuracyWhen, auxiliary heater carries out control load operating using solid-state relay；
The control method of the pump type heat aircraft floor air conditioner group, wherein in the step B, level-one heat pump refrigerating System sets defrosting start-up temperature as TExcept 0 one, set defrosting and stop temperature as TExcept 1 one, defrost what temperature sensor real-time monitored Defrosting temperature is TExcept one, the starting defrosting mode standard time is set as tIf one, the practical temperature that defrosts is already below defrosting standards temperature Duration be t0 one, the standard time of operation defrosting mode is set as tIf fortune one, practical defrosting time is tFortune one；
When unit runs on air-source heating operation mode, if TExcept one< TExcept 0 oneAnd t0 one≥tIf one, level-one heat pump refrigerating system System maintains heating operation mode；If TExcept one≥TExcept 0 oneOr TExcept one< TExcept 0 oneAnd t0 one< tIf oneOr TExcept one≥TExcept 1 oneOr TExcept one< TExcept 1 oneAnd tFortune one ≥tIf fortune one, unit enters Defrost operation mode, four-way valve power loss；
Second level heat pump refrigeration system sets defrosting start-up temperature as TExcept 0 two, set defrosting and stop temperature as TExcept 1 two, defrosting temperature The defrosting temperature that degree sensor real-time monitors is TExcept two, the starting defrosting mode standard time is set as tIf two, the practical temperature that defrosts Duration already below defrosting standards temperature is t0 two, the standard time of operation defrosting mode is set as tIf fortune two, practical to defrost Time is tFortune two；
When unit runs on air-source heating operation mode, if TExcept two< TExcept 0 twoAnd t0 two≥tIf two, level-one heat pump refrigerating system System maintains heating operation mode；If TExcept two≥TExcept 0 twoOr TExcept two< TExcept 0 twoAnd t0 two< tIf twoOr TExcept two≥TExcept 1 twoOr TExcept two< TExcept 1 twoAnd tFortune two ≥tIf fortune two, unit enters Defrost operation mode, four-way valve power loss.
The utility model has the advantages that the invention discloses a kind of control methods of pump type heat aircraft floor air conditioner group, using heat pump side Formula is inputted using inverse Carnot cycle by a small amount of high-grade electric energy, and the low grade heat energy in atmosphere is transferred to using side air In, significantly improving energy efficiency ratio, system Energy Efficiency Ratio itself may be up between 3.0~3.5, and energy consumption is down to the 14% of electric heating energy consumption ~16%, save mass energy.Meanwhile a variety of suitable defrosting functions are provided in this system, it ensure that unit normal table Operation, reliability significantly promotes, and effective solution conventional airplane ground air conditioner unit in the prior art heated in winter When operation, heated only with electric heater, energy consumption is high, the defects of and deficiency, it is energy saving, promoted control precision, promoted cabin Comfort, and it is provided with a variety of suitable defrosting functions in systems, it ensure that unit normal table is run.
Detailed description of the invention
Fig. 1 is the step flow chart of the control method of the pump type heat aircraft floor air conditioner group of the present invention.
Fig. 2 is air-treatment of the invention, refrigeration heat pump system schematic diagram.
Fig. 3 is the suspension type structure chart of pump type heat aircraft floor air conditioner group of the invention.
Fig. 4 is the ground type structure chart of pump type heat aircraft floor air conditioner group of the invention.
Fig. 5 is the scheme of installation of suspension type pump type heat aircraft floor air conditioner group of the present invention.
Fig. 6 is the scheme of installation of ground type pump type heat aircraft floor air conditioner group of the present invention.
Specific embodiment
The present invention provides a kind of control method of pump type heat aircraft floor air conditioner group, to make the purpose of the present invention, technology Scheme and effect are clearer, clear, and the present invention is described in more detail below.It should be appreciated that described herein specific Embodiment is only used to explain the present invention, is not intended to limit the present invention.
The invention discloses a kind of control methods of pump type heat aircraft floor air conditioner group, as shown in Figure 1, being the method Step flow chart, wherein comprising steps of
S1, the control model that a variety of air-conditioner sets are stored in advance；
S2, one of various control mode is chosen as needed, into the control model working condition.
The control method of the pump type heat aircraft floor air conditioner group, wherein in the step S1, various control mode It include: that cooling operation mode, ventilation operational mode and heating operation mode, air hose mode setting have double air hose modes, Dan Fengguan 1 Mode, 2 mode of Dan Fengguan.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step S2 includes:
S201, high pressure blower one and the starting operation of high pressure blower two, axial flow blower starting operation, four-way valve one and two Power loss, central control system is according to setting leaving air temp, when wind pushing temperature sensor detection temperature is higher than outlet air set temperature+system It is cold can set temperature difference when, load operating is carried out by the sequence of system one, two, three, four to refrigeration system；When supply air temperature senses Device detect temperature lower than outlet air set temperature-refrigeration can set temperature difference when, to refrigeration system by system four, three, two, one it is suitable Benefit carries out unloading operation；Wind pushing temperature sensor detection temperature be in outlet air set temperature+refrigeration can set temperature difference and out Wind set temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation, and control model is refrigerating operaton at this time Mode, double air hose modes.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step S2 further include:
S202, the starting operation of high pressure blower one, high pressure blower two and refrigeration system four are shut down, axial flow blower starting fortune Row, the power loss of four-way valve one and two, central control system is according to setting leaving air temp, when wind pushing temperature sensor detection temperature is higher than Outlet air set temperature+refrigeration can set temperature difference when, load operating is carried out by the sequence of system one, two, three to refrigeration system；When Wind pushing temperature sensor detect temperature lower than outlet air set temperature-refrigeration can set temperature difference when, to refrigeration system press system Three, two, one unloading operation is gone on smoothly；Wind pushing temperature sensor detection temperature, which is in outlet air set temperature+refrigeration, can set temperature Spend difference and outlet air set temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation, at this time control model For cooling operation mode, 2 mode of Dan Fengguan.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step S2 further include:
S203, the starting operation of high pressure blower two, high pressure blower one and refrigeration system three are shut down, axial flow blower starting fortune Row, the power loss of four-way valve one and two, central control system is according to setting leaving air temp, when wind pushing temperature sensor detection temperature is higher than Outlet air set temperature+refrigeration can set temperature difference when, load operating is carried out by the sequence of system one, two, four to refrigeration system；When Wind pushing temperature sensor detect temperature lower than outlet air set temperature-refrigeration can set temperature difference when, to refrigeration system press system Four, two, one unloading operation is gone on smoothly；Wind pushing temperature sensor detection temperature, which is in outlet air set temperature+refrigeration, can set temperature Spend difference and outlet air set temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation, at this time control model For cooling operation mode, 1 mode of Dan Fengguan.
The control method of the pump type heat aircraft floor air conditioner group, wherein further comprise the steps of:
S3, when refrigeration system three and four evaporator of refrigeration system because temperature reduces, when there is existing frosting, the steaming of refrigeration system Pressure decline is sent out, the pressure that the refrigeration system three and four evaporating pressure controller of refrigeration system detect is lower than pressure set points When, the hot gas bypass solenoid valve of refrigeration system three and refrigeration system four is opened, and the high temperature refrigerant of compressor exhaust pipe is overheated Steam is discharged into behind the expansion valve of refrigeration system three and refrigeration system four, and high temperature hot gas is allowed to enter the refrigeration of evaporator heating frosting Four evaporator of system three and refrigeration system removes frosting；After frosting defrosting, evaporating pressure rises, the refrigeration system Three and the pressure that detects of four evaporating pressure controller of refrigeration system be higher than pressure set points plus-pressure and reset the sum of setting difference When, the hot gas bypass solenoid valve of refrigeration system three and refrigeration system four is closed, and stopping allows high pressure refrigerant vapor to enter evaporator.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step S2 further include:
S204, high pressure blower one and the starting operation of high pressure blower two, other all refrigeration systems and axial flow blower are equal It shuts down, control model is ventilation operational mode, 2 mode of Dan Fengguan at this time.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step S2 further include:
S205, the starting operation of high pressure blower two, high pressure blower one and other all refrigeration systems and axial flow blower are equal It shuts down, control model is ventilation operational mode, 1 mode of Dan Fengguan at this time.
The control method of the pump type heat aircraft floor air conditioner group, wherein the step S2 further include:
S206, from the compressor shutdown of defrosting and refrigeration system three and four, control model is heating operation mode at this time, if real Border inlet air temperature TInto, system starting inlet air temperature TInto 1, two system starting inlet air temperature TInto 2；
Work as TInto≤TInto 1When, heat pump refrigeration system one starts heating operation, and four-way valve one must be electric, works as TInto>TInto 1When, heat pump system Cooling system one is shut down, one power loss of four-way valve；
Work as TInto≤TInto 2When, the starting operation of heat pump refrigeration system two, four-way valve one must be electric, works as TInto>TInto 2When, heat pump refrigerating system System two is shut down, one power loss of four-way valve；
When display operation Systematic selection heating operation mode, practical leaving air temp TOut, outlet air set temperature TIt sets out, can set Surely precision T is controlledSetting accuracy
Work as TIt sets out-TSetting accuracy≤TOut≤TIt sets out+TSetting accuracyWhen, auxiliary heater is not loaded with also not imperial carry；
Work as TOut> TIt sets out+TSetting accuracyWhen, auxiliary heater carries out controlling imperial carrying row using solid-state relay；
Work as TOut< TIt sets out+TSetting accuracyWhen, auxiliary heater carries out control load operating using solid-state relay；
The control method of the pump type heat aircraft floor air conditioner group, wherein in the step S2, level-one heat pump refrigerating System sets defrosting start-up temperature as TExcept 0 one, set defrosting and stop temperature as TExcept 1 one, defrost what temperature sensor real-time monitored Defrosting temperature is TExcept one, the starting defrosting mode standard time is set as tIf one, the practical temperature that defrosts is already below defrosting standards temperature Duration be t0 one, the standard time of operation defrosting mode is set as tIf fortuneOne, practical defrosting time is tFortune one；
When unit runs on air-source heating operation mode, if TExcept one< TExcept 0One and t0 one≥tIf one, level-one heat pump refrigerating system System maintains heating operation mode；If TExcept one≥TExcept 0 oneOr TExcept one< TExcept 0 oneAnd t0 one< tIf oneOr TExcept one≥TExcept 1 oneOr TExcept one< TExcept 1 oneAnd tFortune one ≥tIf fortune one, unit enters Defrost operation mode, four-way valve power loss；
Second level heat pump refrigeration system sets defrosting start-up temperature as TExcept 0 two, set defrosting and stop temperature as TExcept 1 two, defrosting temperature The defrosting temperature that degree sensor real-time monitors is TExcept two, the starting defrosting mode standard time is set as tIf two, the practical temperature that defrosts Duration already below defrosting standards temperature is t0 two, the standard time of operation defrosting mode is set as tIf fortune two, practical to defrost Time is tFortune two；
When unit runs on air-source heating operation mode, if TExcept two< TExcept 0 twoAnd t0 two≥tIf two, level-one heat pump refrigerating system System maintains heating operation mode；If TExcept two≥TExcept 0 twoOr TExcept two< TExcept 0 twoAnd t0 two< tIf twoOr TExcept two≥TExcept 1 twoOr TExcept two< TExcept 1 twoAnd tFortune two ≥tIf fortune two, unit enters Defrost operation mode, four-way valve power loss.
Present pre-ferred embodiments, as shown in Fig. 2,3,4,5,6, wherein Fig. 2 is air-treatment of the invention, refrigeration heat Pumping system schematic diagram；Fig. 3 is suspension type structure chart of the invention；Fig. 4 is ground type structure chart of the invention；Fig. 5 is the present invention Suspension type scheme of installation；Fig. 6 is ground type scheme of installation of the invention, and heat pump type air conditioner unit of the invention includes frame Structure (1), air-conditioning system (2), level-one heat pump refrigeration system (3), second level heat pump refrigeration system (4), three-level are from the system of defrosting Cooling system (5), level Four are from subsystems such as defrosting and refrigeration system (6), auxiliary heating system (7), automatic control systems (8).
Lifting part (12), outer framework when the frame structure includes outer framework structure air-conditioning box (11), lift-on/lift-off type installation The Cooling and Heat Source of the axial flow blower (13,14,15), the installation of outer framework structure air-conditioning box (11) side installed on air-conditioning box structure is then changed The components such as the fixing piece (17) when hot device air-inlet grille (16), console mode installation.
The air-conditioning system includes: air filter (21), air duct one (22), high pressure blower one (23), height Drum pressure blower two (211), electric fire-damper one (25), electric fire-damper two (26), air outlet one (27), is sent air duct two (24) Air port two (28), air supplying hose (29) are successively wherein inside air duct one (22): a second level using side heat exchanger (33,43) and The prime of refrigeration system three and four uses side heat exchanger (53,63), is disposed with inside air duct two (24) from defrosting and refrigeration system three Rear class with four uses side heat exchanger (54,64).
The level-one heat pump refrigeration system and second level heat pump refrigeration system include: the compressor of heat pump refrigeration system one and two Then heat exchanger (32,42), heat pump refrigeration system one and two are exchanged heat using side for (31,41), the Cooling and Heat Source of heat pump refrigeration system one and two Device (33,43), non-return valve (35,45), the pressure protector of heat pump refrigeration system one and two (36,46), one and of heat pump refrigeration system Two four-way valve reversal valves (37,47), heat pump refrigeration system one and two heat heating power expansion valve (38,48), heat pump refrigeration system one With two refrigeration check valve (39,49), the device for drying and filtering of heat pump refrigeration system one and two (310,410), one and of heat pump refrigeration system Two refrigeration thermostatic expansion valves (311,411), heat pump refrigeration system one and two heat check valve (312,412), heat pump refrigeration system One and two vapour liquid separators (313,413).
The three-level from defrosting and refrigeration system and level Four from defrosting and refrigeration system include: from defrosting and refrigeration system three and four Compressor (51,61), from the Cooling and Heat Source of defrosting and refrigeration system three and four then heat exchanger (52,62), from three and of defrosting and refrigeration system Four prime uses side heat exchanger (53,63), side heat exchanger (54,64) is used from the rear class of defrosting and refrigeration system three and four, is inverse Only valve (55), pressure protector (56), device for drying and filtering (58), expansion valve (59,69), vapour from defrosting and refrigeration system three and four Liquid/gas separator (510) is magnet valve (511,611) from the hot-gas bypass of defrosting and refrigeration system three and four.
The auxiliary heating system (7), including auxiliary heater (71).
The automatic control system (8), comprising: electric control box (81), electric heating solid-state relay (85), flow sensing Device (86), pressure sensor (87), wind pushing temperature sensor (88), blasting humidity sensor (89), smoke detector (810), Cabin temperature sensor (811), cabin humidity sensor (812), sensor data acquisition system (813), center control system (814), the components such as display operation system (815).
The present invention, central control system is set according to the cabin temperature and humidity of display operation system (814), operational mode is set Fixed, air-out flow or aircraft model setting, outlet air temperature and humidity are set, air outlet selection setting (can choose air outlet one or two Or open simultaneously) input requirements, by sensor data acquisition system acquire actual motion in air-out flow, outlet air it is warm and humid Degree goes out the data such as wind pressure, cabin temperature and humidity, calculates and control automatically each execution system, controls pressure fan and electric fire-damper Unlatching selection, control refrigeration system one to four unlatching or shutdown, four-way reversing valve power loss, control electric heating system Heating amount is exported, the intelligent control method that outlet air parameter or cabin temperature and setting value are adapted is adjusted.
The present invention, in display operation system (814), operational mode be provided with cooling operation mode, ventilation operational mode and Heating operation mode, air hose mode setting have double air hose modes, 1 mode of Dan Fengguan, 2 mode of Dan Fengguan, and user can be according to need Select the control model needed.
The present invention, when display operation system (814) selection cooling operation mode, double air hose modes, high pressure blower one (23) it is run with high pressure blower two (211) starting operation, axial flow blower starting, the power loss of four-way valve one and two, center control system System can set temperature according to setting leaving air temp, when wind pushing temperature sensor (88) detection temperature is higher than outlet air set temperature+refrigeration When spending difference, load operating is carried out by one, two, three, four sequence of system to refrigeration system；When wind pushing temperature sensor (88) detect Temperature lower than outlet air set temperature-refrigeration can set temperature difference when, refrigeration system is gone on smoothly by system four, three, two, one Unloading operation；Wind pushing temperature sensor (88) detection temperature is in outlet air set temperature+refrigeration can set temperature difference and outlet air Set temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation.
When display operation system (814) selection cooling operation mode, 2 mode of Dan Fengguan, high pressure blower one (23) is opened Dynamic operation, high pressure blower two (211) and refrigeration system four are shut down, axial flow blower starting operation, the power loss of four-way valve one and two, in Entreat control system according to setting leaving air temp, when wind pushing temperature sensor (88) detection temperature is higher than outlet air set temperature+refrigeration Can set temperature difference when, load operating is carried out by the sequence of system one, two, three to refrigeration system；Work as wind pushing temperature sensor (88) detection temperature lower than outlet air set temperature-refrigeration can set temperature difference when, to refrigeration system by system three, two, one it is suitable Benefit carries out unloading operation；Wind pushing temperature sensor (88) detection temperature is in outlet air set temperature+refrigeration can set temperature difference With outlet air set temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation.
When display operation system (814) selection cooling operation mode, 1 mode of Dan Fengguan, high pressure blower two (211) is opened Dynamic operation, high pressure blower one (23) and refrigeration system three are shut down, axial flow blower starting operation, the power loss of four-way valve one and two, in Entreat control system according to setting leaving air temp, when wind pushing temperature sensor (88) detection temperature is higher than outlet air set temperature+refrigeration Can set temperature difference when, load operating is carried out by the sequence of system one, two, four to refrigeration system；Work as wind pushing temperature sensor (88) detection temperature lower than outlet air set temperature-refrigeration can set temperature difference when, to refrigeration system by system four, two, one it is suitable Benefit carries out unloading operation；Wind pushing temperature sensor (88) detection temperature is in outlet air set temperature+refrigeration can set temperature difference With outlet air set temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation.
The present invention, when refrigeration system three and four evaporator of refrigeration system because temperature reduces, when there is existing frosting, refrigeration system Evaporating pressure decline, the refrigeration system three is low with the pressure that four evaporating pressure controller of refrigeration system (88,89) detects When pressure set points, the hot gas bypass solenoid valve (511,611) of refrigeration system three and refrigeration system four is opened, and compressor is arranged The high temperature refrigerant superheated vapor of tracheae is discharged into the expansion valve (59,69) of refrigeration system three and refrigeration system four below, allows high temperature Hot gas enters four evaporator of refrigeration system three and refrigeration system of evaporator heating frosting, removes frosting.When frosting defrosting finishes Afterwards, the pressure that evaporating pressure rising, the refrigeration system three and four evaporating pressure controller of refrigeration system (88,89) detect is high When pressure set points plus-pressure resets the sum of setting difference, the hot gas bypass solenoid valve of refrigeration system three and refrigeration system four (511,611) it closes, stopping allows high pressure refrigerant vapor to enter evaporator.
The present invention, when display operation system (814) selection ventilation operational mode, double air hose modes, high pressure blower one (23) it is run with high pressure blower two (211) starting, other all refrigeration systems and axial flow blower are shut down.
When display operation system (814) selection ventilation operational mode, 2 mode of Dan Fengguan, high pressure blower one (23) is opened Dynamic operation, high pressure blower two (211) and other all refrigeration systems and axial flow blower are shut down.
When display operation system (814) selection ventilation operational mode, 1 mode of Dan Fengguan, high pressure blower two (211) is opened Dynamic operation, high pressure blower one (23) and other all refrigeration systems and axial flow blower are shut down.
The control method of the present invention, heat pump refrigeration system heating operation are characterized in that: when display operation system (814) are selected When selecting heating operation mode, shut down from the compressor (51,61) of defrosting and refrigeration system three and four.
Practical inlet air temperature TInto, system starting inlet air temperature TInto 1, two system starting inlet air temperature TInto 2
Work as TInto≤TInto 1When, heat pump refrigeration system one starts heating operation, and four-way valve one must be electric, works as TInto>TInto 1When, heat pump system Cooling system one is shut down, one power loss of four-way valve.
Work as TInto≤TInto 2When, the starting operation of heat pump refrigeration system two, four-way valve one must be electric, works as TInto>TInto 2When, heat pump refrigerating system System two is shut down, one power loss of four-way valve.
The present invention, heat pump refrigeration system defrosting control method are characterized in that:
Level-one heat pump refrigeration system sets defrosting start-up temperature as TExcept 0 one, set defrosting and stop temperature as TExcept 1 one, defrosting temperature The defrosting temperature that degree sensor real-time monitors is TExcept one, the starting defrosting mode standard time is set as tIf one, the practical temperature that defrosts Duration already below defrosting standards temperature is t0 one, the standard time of operation defrosting mode is set as tIf fortune one, practical to defrost Time is tFortune one。
When unit runs on air-source heating operation mode, if TExcept one< TExcept 0 oneAnd t0 one≥tIf one, level-one heat pump refrigerating system System maintains heating operation mode；If TExcept one≥TExcept 0 oneOr TExcept one< TExcept 0 oneAnd t0 one< tIf oneOr TExcept one≥TExcept 1One or TExcept one< TExcept 1 oneAnd tFortune one ≥tIf fortune one, unit enters Defrost operation mode, four-way valve power loss.
Second level heat pump refrigeration system sets defrosting start-up temperature as TExcept 0 two, set defrosting and stop temperature as TExcept 1 two, defrosting temperature The defrosting temperature that degree sensor real-time monitors is TExcept two, the starting defrosting mode standard time is set as tIf two, the practical temperature that defrosts Duration already below defrosting standards temperature is t0 two, the standard time of operation defrosting mode is set as tIf fortune two, practical to defrost Time is tFortune two。
When unit runs on air-source heating operation mode, if TExcept two< TExcept 0 twoAnd t0 two≥tIf two, level-one heat pump refrigerating system System maintains heating operation mode；If TExcept two≥TExcept 0 twoOr TExcept two< TExcept 0 twoAnd t0 two< tIf twoOr TExcept two≥TExcept 1 twoOr TExcept two< TExcept 1 twoAnd tFortune two ≥tIf fortune two, unit enters Defrost operation mode, four-way valve power loss.
The present invention, auxiliary heater control method are characterized in that: when display operation system (814) select heating operation mould When formula, practical leaving air temp TOut, outlet air set temperature TIt sets out, control precision T can be setSetting accuracy
Work as TIt sets out-TSetting accuracy≤TOut≤TIt sets out+TSetting accuracyWhen, auxiliary heater (7) is not loaded with also not imperial carry.
Work as TOut> TIt sets out+TSetting accuracyWhen, auxiliary heater (7) carries out controlling imperial carrying row using solid-state relay.
Work as TOut< TIt sets out+TSetting accuracyWhen, auxiliary heater (7) carries out control load operating using solid-state relay.
The air outlet of the present invention, pump type heat aircraft floor air conditioner group can be single air outlet, can also be double air outlets, when When pump type heat aircraft floor air conditioner group is single air outlet, unit is only capable of supply and squeezes body aircraft utilization.When pump type heat aircraft floor When air-conditioner set is double air outlets, unit can supply wide-bodied aircraft use, can also be set air outlet one (27) by control panel Or air outlet two (28), and by control high pressure blower one (23), high pressure blower two (211), electric fire-damper one (25), Electric fire-damper two (26) is for automatically selecting two air feed of air outlet one and air outlet.
Meanwhile the air-conditioner set air bridge capable of hoisting loaded on civil airport is in the following, air bridge can also be installed on to seat Below or around.
In conclusion the invention discloses a kind of control methods of pump type heat aircraft floor air conditioner group, using heat pump side Formula is inputted using inverse Carnot cycle by a small amount of high-grade electric energy, and the low grade heat energy in atmosphere is transferred to using side air In, significantly improving energy efficiency ratio, system Energy Efficiency Ratio itself may be up between 3.0~3.5, and energy consumption is down to the 14% of electric heating energy consumption ~16%, save mass energy.Meanwhile a variety of suitable defrosting functions are provided in this system, it ensure that unit normal table Operation, reliability significantly promotes, and effective solution conventional airplane ground air conditioner unit in the prior art heated in winter When operation, heated only with electric heater, energy consumption is high, the defects of and deficiency, it is energy saving, promoted control precision, promoted cabin Comfort, and it is provided with a variety of suitable defrosting functions in systems, it ensure that unit normal table is run.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention Protect range.

Claims (8)

1. a kind of control method of pump type heat aircraft floor air conditioner group, which is characterized in that comprising steps of
A, the control model of a variety of air-conditioner sets is stored in advance；
B, one of various control mode is chosen as needed, into the control model working condition；
The step B includes:
B6, from the compressor shutdown of defrosting and refrigeration system three and four, control model is heating operation mode at this time, if practical air inlet Temperature TInto, system starting inlet air temperature TInto 1, two system starting inlet air temperature TInto 2；
Work as TInto≤TInto 1When, heat pump refrigeration system one starts heating operation, and four-way valve one must be electric, works as TInto>TInto 1When, heat pump refrigerating system It is unified to shut down, one power loss of four-way valve；
Work as TInto≤TInto 2When, the starting operation of heat pump refrigeration system two, four-way valve one must be electric, works as TInto>TInto 2When, heat pump refrigeration system two It shuts down, one power loss of four-way valve；
When display operation Systematic selection heating operation mode, practical leaving air temp TOut, outlet air set temperature TIt sets out, control can be set Precision T processedSetting accuracy；
Work as TIt sets out-TSetting accuracy≤TOut≤TIt sets out+TSetting accuracyWhen, auxiliary heater, which is not loaded with, also not to be unloaded；
Work as TOut> TIt sets out+TSetting accuracyWhen, auxiliary heater carries out control unloading operation using solid-state relay；
Work as TOut< TIt sets out+TSetting accuracyWhen, auxiliary heater carries out control load operating using solid-state relay；
The step B further include: level-one heat pump refrigeration system sets defrosting start-up temperature as TExcept 0 one, set defrosting stop temperature as TExcept 1 one, the defrosting temperature that defrosting temperature sensor real-time monitors is TExcept one, the starting defrosting mode standard time is set as tIf one, real Border defrosting temperature is t already below the duration of defrosting standards temperature0 one, set operation defrosting mode standard time as tIf fortune one, practical defrosting time is tFortune one；
When unit runs on air-source heating operation mode, if TExcept one< TExcept 0 oneAnd t0 one≥tIf one, level-one heat pump refrigeration system dimension Hold heating operation mode；If TExcept one≥TExcept 0 oneOr TExcept one< TExcept 0 oneAnd t0 one< tIf oneOr TExcept one≥TExcept 1 oneOr TExcept one< TExcept 1 oneAnd tFortune one≥ tIf fortune one, unit enters Defrost operation mode, four-way valve power loss；
Second level heat pump refrigeration system sets defrosting start-up temperature as TExcept 0 two, set defrosting and stop temperature as TExcept 1 two, defrosting temperature biography The defrosting temperature that sensor real-time monitors is TExcept two, the starting defrosting mode standard time is set as tIf two, practical to have defrosted temperature Duration lower than defrosting standards temperature is t0 two, the standard time of operation defrosting mode is set as tIf fortune two, practical defrosting time For tFortune two；
When unit runs on air-source heating operation mode, if TExcept two< TExcept 0 twoAnd t0 two≥tIf two, level-one heat pump refrigeration system dimension Hold heating operation mode；If TExcept two≥TExcept 0 twoOr TExcept two< TExcept 0 twoAnd t0 two< tIf twoOr TExcept two≥TExcept 1 twoOr TExcept two< TExcept 1 twoAnd tFortune two≥ tIf fortune two, unit enters Defrost operation mode, four-way valve power loss.
2. the control method of pump type heat aircraft floor air conditioner group according to claim 1, which is characterized in that the step In A, various control mode includes: cooling operation mode, ventilation operational mode and heating operation mode, and air hose mode setting has double Air hose mode, 1 mode of Dan Fengguan, 2 mode of Dan Fengguan.
3. the control method of pump type heat aircraft floor air conditioner group according to claim 2, which is characterized in that the step B includes:
B1, high pressure blower one and the starting operation of high pressure blower two, axial flow blower starting operation, the power loss of four-way valve one and two, Central control system is according to setting leaving air temp, when wind pushing temperature sensor detection temperature can higher than outlet air set temperature+refrigeration When set temperature difference, load operating is carried out by one, two, three, four sequence of system to refrigeration system；When wind pushing temperature sensor is visited Testing temperature lower than outlet air set temperature-refrigeration can set temperature difference when, to refrigeration system by system four, three, two, one smoothly into Row unloading operation；Wind pushing temperature sensor detection temperature be in outlet air set temperature+refrigeration can set temperature difference and outlet air set Determine temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation, and control model is refrigerating operaton mould at this time Formula, double air hose modes.
4. the control method of pump type heat aircraft floor air conditioner group according to claim 3, which is characterized in that the step B further include:
B2, the starting operation of high pressure blower one, high pressure blower two and refrigeration system four are shut down, axial flow blower starting operation, and four The power loss of port valve one and two, central control system is according to setting leaving air temp, when wind pushing temperature sensor detection temperature is higher than outlet air Set temperature+refrigeration can set temperature difference when, load operating is carried out by the sequence of system one, two, three to refrigeration system；Work as air-supply Temperature sensor detect temperature lower than outlet air set temperature-refrigeration can set temperature difference when, to refrigeration system by system three, Two, one unloading operation is gone on smoothly；Wind pushing temperature sensor detection temperature be in outlet air set temperature+refrigeration can set temperature it is poor Value and outlet air set temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation, and control model is to make at this time Cold operation mode, 2 mode of Dan Fengguan.
5. the control method of pump type heat aircraft floor air conditioner group according to claim 4, which is characterized in that the step B further include:
B3, the starting operation of high pressure blower two, high pressure blower one and refrigeration system three are shut down, axial flow blower starting operation, and four The power loss of port valve one and two, central control system is according to setting leaving air temp, when wind pushing temperature sensor detection temperature is higher than outlet air Set temperature+refrigeration can set temperature difference when, load operating is carried out by the sequence of system one, two, four to refrigeration system；Work as air-supply Temperature sensor detect temperature lower than outlet air set temperature-refrigeration can set temperature difference when, to refrigeration system by system four, Two, one unloading operation is gone on smoothly；Wind pushing temperature sensor detection temperature be in outlet air set temperature+refrigeration can set temperature it is poor Value and outlet air set temperature-refrigeration can set temperature difference when, refrigeration system maintains the original state operation, and control model is to make at this time Cold operation mode, 1 mode of Dan Fengguan.
6. the control method of pump type heat aircraft floor air conditioner group according to claim 5, which is characterized in that further include step It is rapid:
C, when refrigeration system three and four evaporator of refrigeration system are because of temperature reduction, when there is frosting, the evaporating pressure of refrigeration system When the pressure that decline, the refrigeration system three and four evaporating pressure controller of refrigeration system detect is lower than pressure set points, system The hot gas bypass solenoid valve of cooling system three and refrigeration system four is opened, and the high temperature refrigerant superheated vapor of compressor exhaust pipe is arranged Behind the expansion valve for entering refrigeration system three and refrigeration system four, high temperature hot gas is allowed to enter the refrigeration system three of evaporator heating frosting With four evaporator of refrigeration system, frosting is removed；After frosting defrosting, evaporating pressure rises, the refrigeration system three and system When the pressure that four evaporating pressure controller of cooling system detects is higher than the sum of pressure set points plus-pressure reset setting difference, refrigeration The hot gas bypass solenoid valve of system three and refrigeration system four is closed, and stopping allows high pressure refrigerant vapor to enter evaporator.
7. the control method of pump type heat aircraft floor air conditioner group according to claim 5, which is characterized in that the step B further include:
B4, high pressure blower one and the starting operation of high pressure blower two, other all refrigeration systems and axial flow blower are shut down, this When control model be ventilation operational mode, 2 mode of Dan Fengguan.
8. the control method of pump type heat aircraft floor air conditioner group according to claim 7, which is characterized in that the step B further include:
B5, the starting operation of high pressure blower two, high pressure blower one and other all refrigeration systems and axial flow blower are shut down, this When control model be ventilation operational mode, 1 mode of Dan Fengguan.
CN201710067087.8A 2017-02-07 2017-02-07 A kind of control method of pump type heat aircraft floor air conditioner group Active CN106871348B (en)

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CN108105916B (en) * 2017-12-26 2023-12-19 广东申菱环境系统股份有限公司 Corridor bridge air conditioning unit for airport and control method thereof

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CN103486696A (en) * 2013-09-30 2014-01-01 广东申菱空调设备有限公司 Rapid cooling type aircraft ground air conditioning unit and control method thereof
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