A kind of frostless condensation heat regenerative solution dehumidification aircraft earth surface air-conditioning case
Technical field
The present invention relates to a kind of frostless condensation heat regenerative solution dehumidification aircraft earth surface air-conditioning case.
Background technology
Traditional aircraft floor air conditioner group is in order to ensure the cold leaving air temp of engine room inside, and leaving air temp requirement is low reaches 1 ~ 4 DEG C, and in running, the evaporating temperature of evaporimeter is lower than 0 DEG C, and easily cause evaporator fin frosting, running time is longer, and 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, 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, and cannot provide the air-conditioning of equilibrium temperature and air quantity for a long time, comfortableness is lower.
In addition, for the area that humidity is larger, dehumidifying is one of main task of aircraft floor air conditioner group, and heavily occupies large percentage in refrigeration duty.Although conventional compression formula refrigerated air-conditioning system realizes the dehumidification by condensation of air by reducing evaporating temperature, greatly increased the weight of the burden of the energy and environment aspect, therefore, the air-conditioning system of research and development novel energy-conserving, environmental protection is particularly urgent simultaneously.
Summary of the invention
The present invention will solve the easy frosting of conventional airplane air-conditioner set run duration evaporimeter and the large problem of energy consumption, and provides a kind of frostless condensation heat regenerative solution dehumidification aircraft floor air conditioner group.
A kind of frostless condensation heat regenerative solution dehumidification aircraft earth surface air-conditioning case of the present invention comprises framework, air-conditioning system, solution dehumidification system, refrigeration system, heating and automatic control system, described air-conditioning system comprises the first high pressure blower, the second high pressure blower, filter, air channel and air outlet, described solution dehumidification system comprises concentrated solution tank, weak solution tank, heat exchange case, weak solution pump, concentrated solution pump and evaporating type condensing regenerator, described refrigeration system comprises the first compressor, first prime evaporimeter, first rear class evaporimeter, first condenser, first reservoir, prime device for drying and filtering, rear class device for drying and filtering, prime expansion valve, rear class expansion valve, first non-return valve, first pressure protector, second compressor, second prime evaporimeter, second rear class evaporimeter, second condenser, second reservoir, second device for drying and filtering, second expansion valve, second non-return valve, second pressure protector and gas-liquid separator, described heating comprises electric heater and electric fire-damper, described automatic control system comprises electric control box and electrical heating solid-state relay, described first high pressure blower and the second high pressure blower are arranged in parallel the middle part at framework, and described filter is arranged on the bottom of framework, and described air outlet is arranged on the upper end of framework, described solution dehumidification system is arranged on the top of filter, is provided with electric heater between described filter and solution dehumidification system, described solution concentrated solution tank is arranged on the top of dehumidification system, described weak solution tank, heat exchange case and evaporating type condensing regenerator are arranged on the bottom of dehumidification system, described concentrated solution tank is connected with the liquid outlet on heat exchange case top, described weak solution tank is connected with the inlet on heat exchange case top, the liquid outlet of described heat exchange case bottom is connected with the inlet of evaporating type condensing regenerator, the inlet of described heat exchange case bottom is connected with the liquid outlet of evaporating type condensing regenerator, weak solution pump is provided with between the liquid outlet of described heat exchange case bottom and the inlet of evaporating type condensing regenerator, concentrated solution pump is provided with between the inlet of described heat exchange case bottom and the liquid outlet of evaporating type condensing regenerator, the described first prime evaporimeter in the top that described second rear class evaporimeter is arranged on the first blower fan and the second blower fan, the first rear class evaporimeter and the second prime evaporimeter are upwards arranged in air channel successively, described first compressor is connected in parallel with the first prime evaporimeter and the first rear class evaporimeter respectively, described first condenser is connected in parallel with the first prime evaporimeter and the first rear class evaporimeter respectively by the first reservoir, be disposed with prime device for drying and filtering and prime expansion valve between described first condenser and the first prime evaporimeter, between described first condenser and the first rear class evaporimeter, be disposed with rear class device for drying and filtering and rear class expansion valve, described first compressor is connected by pipeline with the first condenser, is disposed with the first non-return valve and the first pressure protector between described first compressor and the first condenser, described second compressor is connected in parallel with the second prime evaporimeter and the second rear class evaporimeter respectively by gas-liquid separator, described second condenser is connected in parallel with the second prime evaporimeter and the second rear class evaporimeter respectively by the second reservoir, the second device for drying and filtering and the second expansion valve successively, described second compressor is connected by pipeline with the second condenser, is disposed with the second non-return valve and the second pressure protector between described second compressor and the second condenser, described electric control box is arranged on the top of framework, and described electric control box is connected by electrical heating solid-state relay with electric heater.
Principle of the present invention:
The course of work of a kind of frostless condensation heat regenerative solution dehumidification aircraft earth surface air-conditioning case of the present invention is divided into air-supply process and regenerative process.
Air-supply process: after new wind first filters formation pure air by air cleaner 21, enter air channel 22, pass through heating, heating is adopted to carry out temperature adjustment during heating condition, enter dehumidifier 61 after temperature adjustment to dehumidify, then enter the first prime evaporimeter 321 to cool, then enter the first rear class evaporimeter 322 to cool further, then enter the second prime evaporimeter 421 to cool, then after the compression of the first high pressure blower 24 and the second high pressure blower 25, increasing temperature and pressure becomes high static air, eventually pass the second rear class evaporimeter 422 and carry out cooling temperature adjustment, air outlet 27 is entered by electric fire-damper, then aircraft cabin is delivered to by special air supplying hose.This process condenser heat adopts traditional air-cooled condenser to discharge, and is respectively the first condenser 33 and the second condenser 43.Dehumidizer solution from dehumidifier top spray, packing layer surface formed uniform liquid film slowly flow down.Dehumidifier 61 adopts cross flow to arrange, air channel arranges that easily, occupation of land space is little, and heat and mass effect is better.Meanwhile, the heat produced in dehumidification process discharges cabinet by the swabbing action of the second axial flow blower 14 and the first axial flow blower 13.
Regenerative process: in the described aircraft air condition unit non-air-supply stage, the regenerative process of dehumidification solution can be carried out.This unit selects built-in evaporating type condensing regenerator 67, is built-in thermal source with the condensation heat of cold-producing medium in the first condenser 33, and dehumidifying weak solution continuously sprays outside evaporative condenser coil pipe 68.In addition, air is from bottom to top blown over outside coil pipe, makes sub-fraction weak solution absorb heat and evaporate.Under evaporation, the heat outside the coil pipe that falls apart, thus the object reaching the built-in refrigerant gas cooling of coil pipe, condensation.Simultaneously also because the heat absorption evaporation of weak solution achieves regeneration of waste liquor.
The invention has the beneficial effects as follows:
The invention solves the problem of the easy frosting of conventional airplane ground air conditioner unit running process; achieve aircraft earth surface air-conditioning to run continually and steadily for a long time; without the need to shutting down defrosting; leaving air temp is not by the impact of frosting; export refrigerating capacity more steady; make interior of aircraft amenity higher, run convenient.Adopt condensation heat regenerative solution dehumidification, both decreased the heat consumption of solution dehumidification system, and prevented again condensation heat to be discharged in environment and cause pollution.
The present invention adopts the design of all-fresh air or part return air, can be installed on below air bridge seat, by air supplying hose air-supply in aircraft cabin or driving cabin, for the aircraft resting in air bridge provides the treated air with certain cleanliness factor and preference temperature.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of frostless condensation heat regenerative solution dehumidification aircraft earth surface air-conditioning case of the present invention;
Fig. 2 is the right side structure schematic diagram of a kind of frostless condensation heat regenerative solution dehumidification aircraft earth surface air-conditioning case of the present invention;
Fig. 3 is the fundamental diagram of a kind of frostless condensation heat regenerative solution dehumidification aircraft earth surface air-conditioning case of the present invention.
Detailed description of the invention
Detailed description of the invention one: as shown in Figure 1, a kind of frostless condensation heat regenerative solution dehumidification aircraft earth surface air-conditioning case of present embodiment comprises framework 11, air-conditioning system, solution dehumidification system 61, refrigeration system, heating and automatic control system, described air-conditioning system comprises the first high pressure blower 24, second high pressure blower 25, filter 21, air channel 22 and air outlet 27, described solution dehumidification system 61 comprises concentrated solution tank 62, weak solution tank 63, heat exchange case 64, weak solution pump 65, concentrated solution pump 66 and evaporating type condensing regenerator 67, described refrigeration system comprises the first compressor 31, first prime evaporimeter 321, first rear class evaporimeter 322, first condenser 33, first reservoir 34, prime device for drying and filtering 351, rear class device for drying and filtering 352, prime expansion valve 361, rear class expansion valve 362, first non-return valve 37, first pressure protector 38, second compressor 41, second prime evaporimeter 421, second rear class evaporimeter 422, second condenser 43, second reservoir 44, second device for drying and filtering 45, second expansion valve 46, second non-return valve 47, second pressure protector 48 and gas-liquid separator 49, described heating comprises electric heater 51 and electric fire-damper, described automatic control system comprises electric control box 71 and electrical heating solid-state relay 72, described first high pressure blower 24 and the second high pressure blower 25 are arranged in parallel at the middle part of framework 11, and described filter 21 is arranged on the bottom of framework 11, and described air outlet 27 is arranged on the upper end of framework 11, described solution dehumidification system 61 is arranged on the top of filter 21, is provided with electric heater 51 between described filter 21 and solution dehumidification system 61, described solution concentrated solution tank 62 is arranged on the top of dehumidification system 61, described weak solution tank 63, heat exchange case 64 and evaporating type condensing regenerator 67 are arranged on the bottom of dehumidification system 61, described concentrated solution tank 62 is connected with the liquid outlet on heat exchange case 64 top, described weak solution tank 63 is connected with the inlet on heat exchange case 64 top, the liquid outlet of described heat exchange case 64 bottom is connected with the inlet of evaporating type condensing regenerator 67, the inlet of described heat exchange case 64 bottom is connected with the liquid outlet of evaporating type condensing regenerator 67, weak solution pump 65 is provided with between the liquid outlet of described heat exchange case 64 bottom and the inlet of evaporating type condensing regenerator 67, concentrated solution pump 66 is provided with between the inlet of described heat exchange case 64 bottom and the liquid outlet of evaporating type condensing regenerator 67, described second rear class evaporimeter 422 is arranged on described first prime evaporimeter 321, the first rear class evaporimeter 322 in top of the first blower fan 24 and the second blower fan 25 and the second prime evaporimeter 421 is upwards arranged in air channel 22 successively, described first compressor 31 is connected in parallel with the first prime evaporimeter 321 and the first rear class evaporimeter 322 respectively, described first condenser 33 is connected in parallel with the first prime evaporimeter 321 and the first rear class evaporimeter 322 respectively by the first reservoir 34, be disposed with prime device for drying and filtering 351 and prime expansion valve 361 between described first condenser 33 and the first prime evaporimeter 321, between described first condenser 33 and the first rear class evaporimeter 322, be disposed with rear class device for drying and filtering 352 and rear class expansion valve 362, described first compressor 31 is connected by pipeline with the first condenser 33, is disposed with the first non-return valve 37 and the first pressure protector 38 between described first compressor 31 and the first condenser 33, described second compressor 41 is connected in parallel with the second prime evaporimeter 421 and the second rear class evaporimeter 422 respectively by gas-liquid separator 49, described second condenser 43 is connected in parallel with the second prime evaporimeter 421 and the second rear class evaporimeter 422 respectively by the second reservoir 44, second device for drying and filtering 45 and the second expansion valve 46 successively, described second compressor 41 is connected by pipeline with the second condenser 43, is disposed with the second non-return valve 47 and the second pressure protector 48 between described second compressor 41 and the second condenser 43, described electric control box 71 is arranged on the top of framework 11, and described electric control box 71 is connected by electrical heating solid-state relay 72 with electric heater 51.
Detailed description of the invention two: present embodiment and detailed description of the invention one unlike: the side of described framework 11 sidewall is provided with ground type mount pad 12, and the opposite side of described framework 11 sidewall is disposed with the 3rd axial flow blower 15, second axial flow blower 14 and the first axial flow blower 13 from the top down; Described 3rd axial flow blower 15, second axial flow blower 14 is connected with electric control box 71 with the first axial flow blower 13.Other are identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment and detailed description of the invention one or two unlike: described dehumidifier 61 adopts spray column cloth liquid mode, is filled with filler in tower.Other are identical with detailed description of the invention one or two.
Detailed description of the invention four: one of present embodiment and detailed description of the invention one to three unlike: described air outlet 27 is equipped with adiabatic delivery hose, and the other end of adiabatic delivery hose is provided with snap joint.Other are identical with one of detailed description of the invention one to three.
Detailed description of the invention five: present embodiment and one of detailed description of the invention one to four unlike: described electric heater 51 is made up of many controlled electrothermal tubes in parallel.Other are identical with one of detailed description of the invention one to four.
Detailed description of the invention six: one of present embodiment and detailed description of the invention one to five unlike: described electric fire-damper is arranged in air outlet 27.Other are identical with one of detailed description of the invention one to five.