CN204187775U - A kind of ground type aircraft floor air conditioner group - Google Patents
A kind of ground type aircraft floor air conditioner group Download PDFInfo
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- CN204187775U CN204187775U CN201420650734.XU CN201420650734U CN204187775U CN 204187775 U CN204187775 U CN 204187775U CN 201420650734 U CN201420650734 U CN 201420650734U CN 204187775 U CN204187775 U CN 204187775U
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Abstract
The utility model discloses a kind of ground type aircraft floor air conditioner group, comprise frame structure, air-conditioning system, refrigeration system, heating and automatic control system, described refrigeration system is multi-stage refrigerating, comprise first, second, third and fourth refrigeration system, realize synchronous defrosting by the ingenious hot gas bypass solenoid valve position that arranges.The utility model have prevent frosting and automatic defrosting system, make each refrigeration system with the fastest refrigeration drop into speed run, after having started fast, complete machine exports and cooling with maximum refrigerating capacity, guarantees that the aircraft cabin that the short time rests in air bridge reaches fast and the most best refrigeration.
Description
Technical field
The utility model relates to a kind of aircraft floor air conditioner group, particularly relates to a kind of ground type aircraft floor air conditioner group.
Background technology
Aircraft floor air conditioner group existing general at present, hanging is installed on below the air bridge of airport, can move with shelter bridge, all-fresh air air is after the direct sweat cooling of refrigeration system or electric heater heating of unit, cold air or hot-air send into aircraft cabin and driver's cabin, for the aircraft resting in airport provides the cooling-air of treated certain flow, temperature, pressure through adiabatic delivery hose and snap joint by aircraft air condition air outlet.
The use of aircraft floor air conditioner group can reduce the use of the APU of aircraft, reduces the consumption of expensive Aviation Fuel, extends the service life of aircraft air-conditioning system, reduces atmosphere pollution, realizes energy-saving and emission-reduction.Greatly developing aircraft floor air conditioner, is the major action building energy conservation type society.
New airport of building devises suspension type aircraft earth surface air-conditioning on air bridge at present, but except newly-built airports, China also has a large amount of existing airport not consider to hang aircraft earth surface air-conditioning due to original shelter bridge, and its reserved load and insufficient space are to install traditional suspension type aircraft earth surface air-conditioning product.
Meanwhile, the time resting in passenger that shelter bridge falls due to aircraft is shorter, and berthing time only has 40 ~ 60min sometimes, is starved of air-conditioning equipment and exports and cooling with the maximum cold of the fastest velocity interpolation, strengthen the refrigeration of interior of aircraft.But traditional aircraft earth surface air-conditioning control mode falls behind, refrigerating speed is slow, need 10 ~ 15min just can reach maximum cold to export, unit reaches maximum cooling capacity and has pass by 25 ~ 30% of berthing time, cooling and refrigerating speed slow, original refrigerating capacity of a large amount of waste aircraft floor air conditioner groups, cause interior of aircraft refrigeration cannot reach cooling requirement for a long time when cooling, simultaneously, because conventional airplane ground air conditioner adopts multistage efficiency regulative mode, in outdoor temperature decline situation, air conditioner meeting Self-tipping Partial shrinkage machine, but after the unloading, but the demand of interior of aircraft cold cannot be reached, cause a large amount of refrigerating capacities in waste, and interior of aircraft cold cannot be satisfied the demand, reduce the cooling effect of engine room inside and the comfortableness of passenger.
Also have, conventional airplane ground air conditioner unit is in order to ensure the cold leaving air temp of engine room inside, leaving air temp requirement is low reaches 1 ~ 4 DEG C, heat transfer temperature exists, in running, the evaporating temperature of evaporimeter is lower than 0 DEG C, easily cause evaporator fin frosting, running time is longer, frosting is more serious, frosting can block evaporator fin, increase the air drag of evaporimeter, reduce ventilation, further reduction evaporating temperature, long-time continuous service easily causes unit low-voltage variation, situation about could open once again after needing to shut down defrosting, application process bothers, leaving air temp and refrigerating capacity become stable not due to frosting, the air-conditioning of equilibrium temperature and flow cannot be provided for a long time, comfortableness is lower.
Therefore, traditional suspension type aircraft earth surface air-conditioning product cannot meet the demand in market, simultaneously, the control mode of traditional suspension type aircraft floor air conditioner group falls behind, refrigerating speed is slow, cause a large amount of refrigerating capacities in waste, the cooling effect of aircraft cabin inside is not good, the easy frosting of running, it is not long that the time is held in operation, the problem such as wind pushing temperature and instability of flow, makes the amenity residing for interior of aircraft personnel low, even affect the state of mind of aircraft manipulation personnel, the safe driving of remote-effects aircraft.
Application number be 201310457587.4 Chinese patent " a kind of fast-refrigerating type aircraft floor air conditioner group and control method thereof " disclose a kind of fast-refrigerating type aircraft floor air conditioner group and control method thereof, drop into the fastest cooling velocity and maximum cold, promote aircraft floor air conditioner group fast-refrigerating and cooling ability, this patent there is no the impact considering defrosting.
Application number be 201010104498.8 Chinese patent " air conditioner defrosting device " disclose a kind of air conditioner defrosting device, mainly comprise: solenoid valve, temperature sensor and magnetic valve, closed electromagnetic valve during defrosting, when not defrosting, magnetic valve often leaves, during defrosting, solenoid valve regulates solenoid valve to open by the temperature that temperature sensor is experienced, and when not defrosting, solenoid valve is normally closed.This patent is located at before and after expansion valve by magnetic valve, adopts cross valve to carry out the dynamic defrosting of heat, namely cannot realize refrigeration and defrost synchronous.
Summary of the invention
The purpose of this utility model falls behind to overcome control mode in prior art, refrigerating speed is slow, cause a large amount of refrigerating capacities in waste, the cooling effect of aircraft cabin inside is not good, the easy frosting of running, it is not long that the time is held in operation, the technological deficiency of wind pushing temperature and instability of flow, a kind of ground type aircraft floor air conditioner group is provided, run and defrost synchronous, make the refrigeration that aircraft cabin reaches fast and the most best at short notice, reasonable in design, degree of intelligence is high, compact conformation, volume is little, lightweight, good refrigeration effect, supportability is strong, stable and reliable operation.
The purpose of this utility model is achieved by the following technical programs:
A kind of ground type aircraft floor air conditioner group, comprises frame structure, air-conditioning system, refrigeration system, heating and automatic control system, described refrigeration system is multi-stage refrigerating, comprises first, second, third and fourth refrigeration system, described second, 4th refrigerant system configurations is respectively with first, 3rd refrigeration system is identical, and described 3rd or four refrigeration systems comprise the 3rd or four compressors, 3rd or four condensers, 3rd or four prime evaporimeters and the 3rd or four rear class evaporimeters, described 3rd or four compressors are connected with the 3rd or four condensers, link, the other end of the 3rd or four compressors and the 3rd or four condensers respectively all with the 3rd or four prime evaporimeters, 3rd or four rear class evaporimeters connect respectively, the link of described 3rd or four compressors and the 3rd or four condensers and the 3rd or four prime evaporimeters, first or three are respectively equipped with between 3rd or four rear class evaporimeters, second or four expansion valves, the 3rd or four compressors of described connection the 3rd or four prime evaporimeter, first or three hot gas bypass solenoid valve is provided with, the 3rd or four compressors of described connection the 3rd or four rear class evaporimeter between the other end of the 3rd or four condensers, second or four hot gas bypass solenoid valve is provided with, described first or three between the other end of the 3rd or four condensers, second or four expansion valve first or three, second or four the 3rd or four prime evaporimeters of access after hot gas bypass solenoid valve, 3rd or four rear class evaporimeters, are provided with the 3rd, 4th evaporating pressure controller is Based Intelligent Control first respectively, two and the 3rd, the unlatching of four hot gas bypass solenoid valve or closedown.
The utility model, by the access of expansion valve and magnetic valve, achieves aircraft earth surface air-conditioning and runs continually and steadily for a long time, without the need to shutting down defrosting; leaving air temp does not affect by frosting; output refrigerating capacity is steady, makes the amenity residing for interior of aircraft personnel higher, runs more convenient.
While described automatic control system Based Intelligent Control heating and multistage refrigerating plant or the startup of staggering and closedown.The utility model makes each refrigeration system run with the fastest refrigeration speed that drops into, and after having started fast, complete machine, with maximum refrigerating capacity output and cooling, guarantees that the aircraft cabin that the short time rests in air bridge reaches fast and the most best refrigeration.
Further, described frame structure comprises outside framework structure air-conditioning box, ground type mount pad, described outside framework structure air-conditioning box side is provided with condenser air-inlet grille, top is provided with first, second and third axial flow blower, is provided with air supplying hose apparatus for placing before outside framework structure air-conditioning box seat leg.The assembly of described ground type aircraft floor air conditioner has ground type mount pad, be adapted to the situation that shelter bridge cannot lift, build installation foundation without the need to airport ground, directly can be installed on airport ground, easy to install, described air supplying hose apparatus for placing is for depositing the air supplying hose not launching to use.
Described air-conditioning system comprises air cleaner, first air channel, first high pressure blower, second high pressure blower, second air channel, first electric fire-damper, second electric fire-damper, first air outlet, second air outlet, air supplying hose and snap joint, described first air channel connects two the second air channels separated, described first high pressure blower and the second high pressure blower are separately positioned on the porch in the second different air channels, described first electric fire-damper and the second electric fire-damper are separately positioned on the air outlet place in the second different air channels, described air outlet is provided with air supplying hose, described air supplying hose is provided with snap joint.
Arrange before and after described first, second, third refrigeration system, described first, second, arrange before and after the 4th refrigeration system, described 3rd, the 4th refrigeration system is set up in parallel, described first refrigeration system comprises the first compressor, the first condenser and first evaporator, described first, before and after secondary evaporimeter, the 3rd, the prime evaporimeter horizontal alignment of the 4th refrigeration system is located in the first air channel, and the rear class evaporimeter of described 3rd, the 4th refrigeration system is located in the second different air channels side by side respectively.
Automatic control system described in described automatic control system comprises electric control box, electrical heating solid-state relay, flow sensor, pressure sensor, wind pushing temperature sensor, blasting humidity sensor, smoke detector, 3rd evaporating pressure controller, 4th evaporating pressure controller, cabin temperature sensor, cabin humidity sensor, sensor data acquisition system, center-control system and display operating system, described wind pushing temperature sensor and blasting humidity sensor setting are in unit air outlet place, described cabin temperature sensor and cabin humidity sensor are arranged at shelter bridge and aircraft cabin hatch door junction.Air-supply Temperature Humidity Sensor is for detecting the humiture of unit air-out, and cabin Temperature Humidity Sensor is used for the humiture in hunter cabin.Before cabin door is not closed, fast-refrigerating type aircraft floor air conditioner group adopts the detection data of cabin Temperature Humidity Sensor automatically to control, realize the Temperature and Humidity Control of engine room inside, after cabin door is closed, the detection data of air-supply Temperature Humidity Sensor is adopted automatically to control, realize air-supply Temperature and Humidity Control, the air-out humiture of unit is stablized.
Described heating comprises electric heater, after described electric heater is placed in the air cleaner in the first air channel, the air after described electric heater process enters the first air outlet or the second air outlet respectively by the first electric fire-damper or the second electric fire-damper.
A kind of control method of ground type aircraft floor air conditioner group, when the 3rd or four prime evaporimeters and finisher Yin Wendu reduce, when there is existing frosting, described 3rd, when the actual pressure that 4th evaporating pressure controller detects is lower than pressure set points, first, two and the 3rd, the hot gas bypass solenoid valve of four is opened, the high temperature refrigerant superheated vapor of compressor exhaust pipe is entered first or three, second or four after expansion valve, high temperature hot gas is allowed to enter the 3rd or four prime evaporimeters, 3rd or four rear class evaporimeters, 3rd or four prime evaporimeters of heating frosting, 3rd or four rear class evaporimeters, removing frosting, after frosting defrosting, evaporating pressure rises, when the actual pressure that described third and fourth evaporating pressure controller detects is higher than pressure set points plus-pressure reset setting difference sum, first and second and third and fourth hot gas bypass solenoid valve is closed, and stops allowing high pressure refrigerant vapor enter the 3rd or four prime evaporimeters, the 3rd or four rear class evaporimeters.
The control method of described fast-refrigerating type aircraft floor air conditioner group, described intelligent central control system is according to the cabin humiture setting of display operating system, air-out flow or aircraft model setting, the setting of air-out humiture and air outlet select the input requirements of setting, the air-out flow in actual motion is gathered by sensor data acquisition system, air-out humiture, go out wind pressure, the data that cabin is warm and humid, automatic calculating and control each executive system, control the first high pressure blower, second high pressure blower, the unlatching of the first electric fire-damper and the second electric fire-damper is selected, control first, two, three, the unlatching of four refrigeration systems or shutdown, the output controlling heating adds heat, air-out parameter or cabin temperature and setting value is regulated to match.
Further, environment is under any temperature conditions, when fast-refrigerating type aircraft floor air conditioner group starts, by intelligent central control Systematical control, under fast-refrigerating type aircraft floor air conditioner group leaving air temp or cabin temperature do not reach design temperature situation, the ownership cooling system of complete machine is all opened, until aircraft floor air conditioner group leaving air temp or cabin temperature are lower than the certain difference of set temperature value, progressively refrigeration system is unloaded again, until leaving air temp or cabin temperature are stabilized in the OK range of setting value left and right; When certain difference higher than set temperature value of leaving air temp or cabin temperature, the previous stage refrigeration system do not started carries out strengthening cooling.
Before cabin door is not closed, described fast-refrigerating type aircraft floor air conditioner group adopts the humiture of the inside, detection data robot brain cabin of cabin temperature sensor and cabin humidity sensor; After cabin door is closed, the detection data of wind pushing temperature sensor and blasting humidity sensor is adopted automatically to control humiture of blowing.
By above-mentioned control method, increase the cooling effect of aircraft earth surface air-conditioning, promote the refrigeration of aircraft cabin, a large amount of refrigerating capacity in waste is proceeded in practicality, improve the utilization rate of refrigeration system, ensure to adopt the refrigerant system capacity of suitable aircraft air condition can obtain extraordinary refrigeration, the problem of the refrigeration that the refrigerant system capacity reducing the unilateral increasing aircraft air condition of traditional product but cannot reach, while reducing product-specific investments cost and material consumption, promote the refrigeration of aircraft earth surface air-conditioning.
The utility model is by the unlatching of intelligent central control Systematical control all devices, and for guaranteeing that start-up time of the present utility model reaches the shortest, the refrigeration system equipment stated starts in the following order:
(1) first high pressure blower and the second high pressure blower start;
(2) first, second and third axial flow blower and the first compressor are simultaneously or startup of staggering;
(3) second compressor starts;
(4) the 3rd compressor starts;
(5) the 4th compressor starts.
The control method that the utility model adopts quick cold to export, each refrigeration plant of whole fast-refrigerating type aircraft floor air conditioner group is 10 ~ 50s from starting to the total boot time reaching the output of maximum refrigerating capacity, and the average start-up time of whole fast-refrigerating type aircraft floor air conditioner group is 25s ~ 30s.
Because start-up time is short, realize the fastest cold and drop into speed and maximum input cold, fast-refrigerating and cooling ability is promoted with the fastest cooling velocity, maximum cold is provided to supply cold to cabin with the fastest speed, thus improve the refrigerating efficiency of aircraft earth surface air-conditioning, acceleration aircraft cabin cools, guarantee that the aircraft cabin that the short time rests in air bridge reaches fast and the most best refrigeration, meet the demand of the cooling of precision equipment in the psychological need of personnel in aircraft cabin and high-comfort and cabin, for personnel in cabin and manipulation personnel provide comfortable environment, improve the state of mind of aircraft manipulation personnel, promote the drive safety of aircraft.
The air outlet of described fast-refrigerating type aircraft floor air conditioner group is single air outlet or two air outlet.When fast-refrigerating type aircraft floor air conditioner group is single air outlet, unit only can supply narrow body aircraft utilization.When fast-refrigerating type aircraft floor air conditioner group is two air outlet, unit can be supplied wide-bodied aircraft and use, also by control panel, set the first air outlet or the second air outlet, and automatically select the first air outlet and the second air outlet air feed by control first high pressure blower, the second high pressure blower, the first electric fire-damper and the second electric fire-damper.
Compared with prior art, the utility model has following beneficial effect:
(1) the utility model solves conventional airplane ground air conditioner unit; the easy frosting of running; it is not long that the time is held in operation; the problem such as wind pushing temperature and instability of flow, achieves aircraft earth surface air-conditioning and runs continually and steadily for a long time, without the need to shutting down defrosting; leaving air temp does not affect by frosting; output refrigerating capacity is steady, makes the amenity residing for interior of aircraft personnel higher, runs more convenient.
(2) the utility model is furnished with ground type installation seat leg, and be adapted to the service condition that shelter bridge cannot lift, build installation foundation without the need to airport ground, the construction cost of airport installation foundation is low, directly can be installed on airport ground, easy to install.
(3) condenser cooling blast of the present utility model is organized as the mode of side air inlet top air draft, good heat dissipation effect, simultaneously, compared with the air-conditioning products on complete seat ground, because airport ground is when sun in summer is directly shone, subaerial air themperature is very high, if be directly installed on ground, its condensation temperature will be very high, and while unit high-temperature resistance declines, Energy Efficiency Ratio also can reduce, and the utility model is supporting seat leg, solve this problem completely, unit high-temperature resistance is stronger, and Energy Efficiency Ratio is higher.
(4) speed and maximum cold investing method is dropped into the fastest cold, fast-refrigerating and cooling ability is promoted with the fastest cooling velocity, maximum cold is provided to supply cold to cabin with the fastest speed, improve the refrigerating efficiency of aircraft earth surface air-conditioning, acceleration aircraft cabin cools, guarantee that the aircraft cabin that the short time rests in air bridge reaches fast and the most best refrigeration, meet the demand of the cooling of precision equipment in the psychological need of personnel in aircraft cabin and high-comfort and cabin, for personnel in cabin and manipulation personnel provide comfortable environment, improve the state of mind of aircraft manipulation personnel, promote the drive safety of aircraft.
(5) a large amount of refrigerating capacity in waste is proceeded in practicality, improve the utilization rate of refrigeration system, ensure to adopt the refrigerant system capacity of suitable aircraft air condition can obtain extraordinary refrigeration, while reducing product-specific investments cost and material consumption, promote the refrigeration of aircraft earth surface air-conditioning.
(6) reasonable in design, degree of intelligence is high, compact conformation, volume are little, lightweight, supportability is strong, stable and reliable operation.Its investment reduction cost, reduces material consumption, has important economy and social effect, be worth promoting.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the utility model air-treatment, refrigeration and control system schematic diagram;
Fig. 4 is the block diagram of the utility model electric control system;
Fig. 5 is the utility model scheme of installation;
In figure: 11, outside framework structure air-conditioning box; 12, ground type mount pad; 13, the first axial flow blower; 14, the second axial flow blower; 15, the 3rd axial flow blower; 16, air-inlet grille; 17, air supplying hose apparatus for placing; 21, air cleaner; 22, the first air channel; 23, the first high pressure blower; 24, the second air channel; 25, the first electric fire-damper; 26, the second electric fire-damper; 27, the first air outlet; 28, the second air outlet; 29, air supplying hose; 210, snap joint; 211, the second high pressure blower; 31, the first compressor; 32, the first condenser; 33, the first evaporimeter; 35, non-return valve; 36, pressure protector; 37, reservoir; 38, device for drying and filtering; 39, expansion valve; 41, the second compressor; 42, the second condenser; 43, the second evaporimeter; 51, the 3rd compressor; 52, the 3rd condenser; 53, the 3rd prime evaporimeter; 54, the 3rd rear class evaporimeter; 55, non-return valve; 56, pressure protector; 57, reservoir; 58, device for drying and filtering; 59, first and second expansion valve; 510, gas-liquid separator; 511, first and second hot gas bypass solenoid valve; 61, the 4th compressor 62, the 4th condenser; 63, the 4th prime evaporimeter; 64, the 4th rear class evaporimeter; 69, third and fourth expansion valve; 610, gas-liquid separator; 611, third and fourth hot gas bypass solenoid valve; 71, electric heater; 81, electric control box; 82, electrical heating solid-state relay; 83, flow sensor; 84, pressure sensor; 85, wind pushing temperature sensor; 86, blasting humidity sensor; 87, smoke detector; 88, the 3rd evaporating pressure controller; 89, the 4th evaporating pressure controller; 810, cabin temperature sensor; 811, cabin humidity sensor; 812, sensor data acquisition system; 813, central control system; 814, operating system is shown; 91, air bridge; 92, shelter bridge mobile device.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment the utility model made and elaborating further, but embodiment does not limit in any form the utility model.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the utility model: comprise the subsystems such as frame structure, air-conditioning system, the first refrigeration system, the second refrigeration system, the 3rd refrigeration system, the 4th refrigeration system, heating, automatic control system.
Described frame structure, described frame structure comprises outside framework structure air-conditioning box (11), ground type mount pad (12), described outside framework structure air-conditioning box (11) side is provided with condenser air-inlet grille (16), top is provided with first, second and third axial flow blower (13,14,15), before outside framework structure air-conditioning box seat leg, air supplying hose apparatus for placing (17) is installed, for depositing the air supplying hose (29) not launching to use.
Described air-conditioning system comprises: air cleaner (21), first air channel (22), first high pressure blower (23), second high pressure blower (211), second air channel (24), first electric fire-damper (25), second electric fire-damper (26), first air outlet (27), second air outlet (28), the assemblies such as air supplying hose (29) and snap joint (210), wherein the first air channel (22) inside successively: heating, first, two evaporimeters (33, 43) the and three, four prime evaporimeters (53, 63) assembly such as, second air channel (24) internal placement has the 3rd, four rear class evaporimeters (54, 64) assembly such as, first and second refrigeration system described, comprising: the assemblies such as first and second compressor (31,41), first and second condenser (32,42), first and second evaporimeter (33,43), non-return valve (35), pressure protector (36), reservoir (37), device for drying and filtering (38), heating power expansion valve (39), third and fourth refrigeration system described, comprising: third and fourth compressor (51,61), third and fourth condenser (52,62), third and fourth prime evaporimeter (53,63), third and fourth rear class evaporimeter (54,64), non-return valve (55), pressure protector (56), reservoir (57), device for drying and filtering (58), the assembly such as first and second or three, four expansion valves (59), vapour liquid separator (510), described heating is made up of electric heater (71), and electric heater device is placed in air channel one.
Described automatic control system, comprise: described automatic control system comprises electric control box (81), electrical heating solid-state relay (82), flow sensor (83), pressure sensor (84), wind pushing temperature sensor (85), blasting humidity sensor (86), smoke detector (87), 3rd evaporating pressure controller (88), 4th evaporating pressure controller (89), cabin temperature sensor (810), cabin humidity sensor (811), sensor data acquisition system (812), center-control system (813) and display operating system (814), described wind pushing temperature sensor (85) and blasting humidity sensor (86) are arranged at unit air outlet place, described cabin temperature sensor (810) and cabin humidity sensor (811) are arranged at shelter bridge and aircraft cabin hatch door junction.
Described heating comprises electric heater (71), after described electric heater (71) is placed in the air cleaner (21) of the first air channel (22), the air after described electric heater (71) process enters the first air outlet (27) or the second air outlet (28) respectively by the first electric fire-damper (25) or the second electric fire-damper (26).
As Fig. 1, shown in Fig. 2, its air treatment system flow process is, after new wind air intake forms pure air after first being filtered by air cleaner (21), enter the first air channel (22), first pass through heating, heating is adopted to carry out temperature adjustment during heating condition, enter the first evaporimeter (33) to cool, then enter the second evaporimeter (43) to cool further, then the 3rd is entered, four prime evaporimeters (53, 63) cooling temperature adjustment is carried out, then through first, two high pressure blowers (23, 211) after compression, increasing temperature and pressure forms high static air, enter the second air channel (24), eventually pass the 3rd, four rear class evaporimeters (54, 64) cooling temperature adjustment is carried out, by the first or second electric fire-damper (25, 26) the first or second air outlet (27 is entered, 28), then aircraft cabin is delivered to by special air supplying hose (29) and snap joint (210).
As shown in Figure 4, in the present embodiment, central control system is according to the cabin humiture setting of display operating system, air-out flow or aircraft model setting, air-out humiture sets, air outlet selects the input requirements of setting (can select the first or second air outlet or open simultaneously), the air-out flow in actual motion is gathered by sensor data acquisition system, air-out humiture, go out wind pressure, the data such as cabin humiture, automatic calculating and control each executive system, the unlatching controlling pressure fan and electric fire-damper is selected, control first, two, three, the unlatching of four refrigeration systems or shutdown, the output controlling electric heating system adds heat, regulate the intelligent control method that air-out parameter or cabin temperature and setting value match.
As shown in Figure 3, described 3rd or four compressors (51, 61) the and three or four condensers (52, 62) connect, link, 3rd or four compressors (51, 61) the and three or four condensers (52, 62) the other end respectively all with the 3rd or four prime evaporimeters (53, 63), 3rd or four rear class evaporimeters (54, 64) connect respectively, described 3rd or four compressors (51, 61) the and three or four condensers (52, 62) link and the 3rd or four prime evaporimeters (53, 63), 3rd or four rear class evaporimeters (54, 64) first or three (59) are respectively equipped with between, second or four expansion valves (69), the 3rd or four compressors (51 of described connection the 3rd or four prime evaporimeter, 61), 3rd or four condensers (52, 62) first or three hot gas bypass solenoid valve (511 is provided with between the other end, 611), the 3rd or four compressors (51 of described connection the 3rd or four rear class evaporimeter, 61), 3rd or four condensers (52, 62) second or four hot gas bypass solenoid valve (511 is provided with between the other end, 611), described first or three, second or four expansion valves (59, 69) first or three, second or four hot gas bypass solenoid valve (511, 611) access the 3rd or four prime evaporimeters (53 after, 63), 3rd or four rear class evaporimeters (54, 64), the 3rd is provided with, 4th evaporating pressure controller (88, 89) difference Based Intelligent Control first, two and the 3rd, four hot gas bypass solenoid valve (511, 611) unlatching or closedown.
A kind of control method of ground type aircraft floor air conditioner group, when the 3rd or four prime evaporimeters and finisher Yin Wendu reduce, when there is existing frosting, when the actual pressure that described 3rd, the 4th evaporating pressure controller (88,89) detects is lower than pressure set points, first and second and third and fourth hot gas bypass solenoid valve (511,611) is opened; After frosting defrosting, evaporating pressure rises, when the actual pressure that described third and fourth evaporating pressure controller (88,89) detects is higher than pressure set points plus-pressure reset setting difference sum, first and second and third and fourth hot gas bypass solenoid valve (511,611) is closed.
As shown in Figure 4 and Figure 5, in the present embodiment, when fast-refrigerating type aircraft floor air conditioner group starts, by intelligent central control system (813) control, by useful equipment put into operation with the fastest speed, its boot sequence and time are:
(1) first and second high pressure blower (23,211) start, start-up time 2 ~ 10s;
(2) first, second and third axial flow blower (13,14,15) and the first compressor (31) are simultaneously or startup of staggering, start-up time 2 ~ 10s;
(3) second compressors (41) start, start-up time 2 ~ 10s;
(4) the 3rd compressors (51) start, start-up time 2 ~ 10s;
(5) the 4th compressors (61) start, start-up time 2 ~ 10s.
Each main refrigerant equipment of whole fast-refrigerating type aircraft floor air conditioner group only needs 10 ~ 50s from starting to the total boot time reaching the output of maximum refrigerating capacity, the average start-up time of complete machine is at 25s ~ 30s, quick startup can make each refrigeration system run with the fastest refrigeration speed that drops into, after having started fast, complete machine exports and cooling with maximum refrigerating capacity, guarantees that the aircraft cabin that the short time rests in air bridge reaches fast and the most best refrigeration.
As shown in Figure 4 and Figure 5, in the present embodiment, environment is under any temperature conditions, during unit starting, controlled by intelligent central control system (813), under fast-refrigerating type aircraft floor air conditioner group leaving air temp or cabin temperature do not reach design temperature situation, the ownership cooling system of complete machine is all opened, until aircraft floor air conditioner group leaving air temp or cabin temperature are lower than the certain difference of set temperature value, progressively refrigeration system is unloaded again, until leaving air temp or cabin temperature are stabilized in the OK range of setting value left and right, drop into maximum cold and promote fast-refrigerating and cooling ability with the fastest cooling velocity, guarantee that the aircraft cabin that the short time rests in air bridge reaches fast and the most best refrigeration.
As shown in Figure 4 and Figure 5, in the present embodiment, environment is under any temperature conditions, in normal course of operation, controlled by intelligent central control system (813), when certain difference higher than set temperature value of leaving air temp or cabin temperature, the previous stage refrigeration system do not started carries out strengthening cooling, guarantee under normal operating conditions, leaving air temp or cabin temperature do not reach setting value, when refrigerating capacity deficiency, can enable the system do not started and carry out strengthening cooling, increase the cooling effect of aircraft earth surface air-conditioning, promote the refrigeration of aircraft cabin.
As shown in Figure 1, Figure 2, shown in, in the present embodiment, described heating adopts electric heater (71) to control, can according to the requirement of air-out humiture, step-less adjustment electric heater add heat, accurately control to add heat and leaving air temp, improve the Temperature and Humidity Control precision in cabin, realizing control temperature precision fluctuation scope is 0.5 ~ 1 DEG C even higher, improves the comfortableness of cabin atmosphere.
As Fig. 3, shown in Fig. 4 and Fig. 5, in the present embodiment, unit arranges a set of air-supply Temperature Humidity Sensor (85, 86) and a set of cabin Temperature Humidity Sensor (810, 811), air-supply Temperature Humidity Sensor is arranged at unit air outlet place, for detecting the humiture of unit air-out, cabin Temperature Humidity Sensor is arranged at shelter bridge and aircraft cabin hatch door junction, for the humiture in hunter cabin, before cabin door is not closed, fast-refrigerating type aircraft floor air conditioner group adopts the detection data of cabin Temperature Humidity Sensor automatically to control, realize the Temperature and Humidity Control of engine room inside, after cabin door is closed, the detection data of air-supply Temperature Humidity Sensor is adopted automatically to control, realize air-supply Temperature and Humidity Control, the air-out humiture of unit is stablized.
When user's choice for use cabin temperature is as control objectives, automatically control according to the cabin temperature that the cabin temperature sensor being arranged on shelter bridge and aircraft cabin hatch door junction detects, when the cabin temperature of described cabin temperature sensor detection exceedes the first default difference higher than set temperature value, close the compressor of refrigeration system step by step according to boot sequence.When the cabin temperature of described cabin temperature sensor detection exceedes the first default difference lower than set temperature value, according to the compressor of the buttoned-up previous stage refrigeration system of sequence starting of closing.
When user's choice for use leaving air temp is as control objectives, air outlet temperature according to the wind pushing temperature sensor detection being arranged on aircraft floor air conditioner group air outlet place controls automatically, when the air outlet temperature that described wind pushing temperature sensor detects exceedes the second default difference higher than set temperature value, close the compressor of refrigeration system step by step according to boot sequence; The numerical value of described second difference is greater than the numerical value of described first difference.When the air outlet temperature that described wind pushing temperature sensor detects exceedes the second default difference lower than set temperature value, according to the compressor of the buttoned-up previous stage refrigeration system of sequence starting of closing.
As shown in Figure 1, 2, in the present embodiment, the air outlet of fast-refrigerating type aircraft floor air conditioner group can be single air outlet, also can be two air outlet, and when fast-refrigerating type aircraft floor air conditioner group is single air outlet, unit only can be supplied and squeeze body aircraft utilization.When fast-refrigerating type aircraft floor air conditioner group is two air outlet, unit can be supplied wide-bodied aircraft and use, also by control panel, set the first air outlet (27) or the second air outlet (28), and by control first high pressure blower (23), the second high pressure blower (211), the first electric fire-damper (25), the second electric fire-damper (26) for automatically selecting the first air outlet and the second air outlet air feed.
The above; it is only preferred embodiment of the present utility model; not task restriction is done to the utility model, every above embodiment is done according to this bright technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (7)
1. a ground type aircraft floor air conditioner group, comprises frame structure, air-conditioning system, refrigeration system, heating and automatic control system, described refrigeration system is multi-stage refrigerating, comprises first, second, third and fourth refrigeration system, described second, 4th refrigerant system configurations is respectively with first, 3rd refrigeration system is identical, and described 3rd or four refrigeration systems comprise the 3rd or four compressors, 3rd or four condensers, 3rd or four prime evaporimeters and the 3rd or four rear class evaporimeters, is characterized in that, described 3rd or four compressors are connected with the 3rd or four condensers, link, the other end of the 3rd or four compressors and the 3rd or four condensers respectively all with the 3rd or four prime evaporimeters, 3rd or four rear class evaporimeters connect respectively, the link of described 3rd or four compressors and the 3rd or four condensers and the 3rd or four prime evaporimeters, first or three are respectively equipped with between 3rd or four rear class evaporimeters, second or four expansion valves, the 3rd or four compressors of described connection the 3rd or four prime evaporimeter, first or three hot gas bypass solenoid valve is provided with, the 3rd or four compressors of described connection the 3rd or four rear class evaporimeter between the other end of the 3rd or four condensers, second or four hot gas bypass solenoid valve is provided with, described first or three between the other end of the 3rd or four condensers, second or four expansion valve first or three, second or four the 3rd or four prime evaporimeters of access after hot gas bypass solenoid valve, 3rd or four rear class evaporimeters, are provided with the 3rd, 4th evaporating pressure controller is Based Intelligent Control first respectively, two and the 3rd, the unlatching of four hot gas bypass solenoid valve or closedown.
2. ground type aircraft floor air conditioner group according to claim 1, is characterized in that, while described automatic control system Based Intelligent Control heating and multistage refrigerating plant or the startup of staggering and closedown.
3. ground type aircraft floor air conditioner group according to claim 1, it is characterized in that, described air-conditioning system comprises air cleaner, first air channel, first high pressure blower, second high pressure blower, second air channel, first electric fire-damper, second electric fire-damper, first air outlet, second air outlet, air supplying hose and snap joint, described first air channel connects two the second air channels separated, described first high pressure blower and the second high pressure blower are separately positioned on the porch in the second different air channels, described first electric fire-damper and the second electric fire-damper are separately positioned on the air outlet place in the second different air channels, described air outlet is provided with air supplying hose, described air supplying hose is provided with snap joint.
4. the ground type aircraft floor air conditioner group according to claim 1 or 3, it is characterized in that, arrange before and after described first, second, third refrigeration system, described first, second, arrange before and after the 4th refrigeration system, described 3rd, the 4th refrigeration system is set up in parallel, and described first refrigeration system comprises the first compressor, the first condenser and first evaporator; Described the first, secondary evaporimeter) before and after, the prime evaporimeter horizontal alignment of the 3rd, the 4th refrigeration system is located in the first air channel, the rear class evaporimeter of described 3rd, the 4th refrigeration system is located in the second different air channels side by side respectively.
5. ground type aircraft floor air conditioner group according to claim 1, it is characterized in that, described automatic control system comprises electric control box, electrical heating solid-state relay, flow sensor, pressure sensor, wind pushing temperature sensor, blasting humidity sensor, smoke detector, 3rd evaporating pressure controller, 4th evaporating pressure controller, cabin temperature sensor, cabin humidity sensor, sensor data acquisition system, center-control system and display operating system, described wind pushing temperature sensor and blasting humidity sensor setting are in unit air outlet place, described cabin temperature sensor and cabin humidity sensor are arranged at shelter bridge and aircraft cabin hatch door junction.
6. ground type aircraft floor air conditioner group according to claim 1, it is characterized in that, described frame structure comprises outside framework structure air-conditioning box, ground type mount pad, described outside framework structure air-conditioning box side is provided with condenser air-inlet grille, top is provided with first, second and third axial flow blower, is provided with air supplying hose apparatus for placing before outside framework structure air-conditioning box seat leg.
7. ground type aircraft floor air conditioner group according to claim 1, it is characterized in that, described heating comprises electric heater, after described electric heater is placed in the air cleaner in the first air channel, the air after described electric heater process enters the first air outlet or the second air outlet respectively by the first electric fire-damper or the second electric fire-damper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420650734.XU CN204187775U (en) | 2014-11-04 | 2014-11-04 | A kind of ground type aircraft floor air conditioner group |
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| CN201420650734.XU CN204187775U (en) | 2014-11-04 | 2014-11-04 | A kind of ground type aircraft floor air conditioner group |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406268A (en) * | 2014-11-04 | 2015-03-11 | 广东申菱空调设备有限公司 | Floor type airplane ground air conditioning unit and control method thereof |
| CN112325380A (en) * | 2020-11-25 | 2021-02-05 | 珠海格力电器股份有限公司 | Air conditioning unit and defrosting method thereof |
-
2014
- 2014-11-04 CN CN201420650734.XU patent/CN204187775U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406268A (en) * | 2014-11-04 | 2015-03-11 | 广东申菱空调设备有限公司 | Floor type airplane ground air conditioning unit and control method thereof |
| CN112325380A (en) * | 2020-11-25 | 2021-02-05 | 珠海格力电器股份有限公司 | Air conditioning unit and defrosting method thereof |
| CN112325380B (en) * | 2020-11-25 | 2024-04-23 | 珠海格力电器股份有限公司 | Air conditioning unit and defrosting method thereof |
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Address after: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Patentee after: GUANGDONG SHENLING AIR-CONDITIONING EQUIPMENT CO., LTD. Address before: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Patentee before: Guangdong Shenling Air Conditioning Equipment Co., Ltd. |