CN212243876U - Combined type airplane ground air conditioning system - Google Patents
Combined type airplane ground air conditioning system Download PDFInfo
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- CN212243876U CN212243876U CN202020894512.8U CN202020894512U CN212243876U CN 212243876 U CN212243876 U CN 212243876U CN 202020894512 U CN202020894512 U CN 202020894512U CN 212243876 U CN212243876 U CN 212243876U
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Abstract
The utility model provides a modular aircraft ground air conditioning system, include: a first heat exchange unit and at least one second heat exchange unit; the first heat exchange units and each second heat exchange unit are respectively arranged in series, external air enters the shell from the air inlet, and after primary heat exchange is carried out on the external air in the shell through the first heat exchange units, the external air flows to the second heat exchange units for secondary heat exchange and is finally conveyed to different aircraft cabins; the first heat exchange unit completes primary heat exchange in a gas-water heat exchange mode, and the second heat exchange unit completes secondary heat exchange in a refrigerant heat exchange mode. The utility model discloses increase first heat transfer unit before conventional second heat transfer unit, through first heat transfer unit to outside air pretreatment, reduce second heat transfer unit's energy consumption, compare with unit aircraft ground air conditioning system, the utility model discloses a first heat transfer unit concentrates pretreatment to make whole aircraft ground air conditioning system cost greatly reduced.
Description
Technical Field
The utility model relates to an aircraft air conditioning field especially relates to a modular aircraft ground air conditioning system.
Background
Most aircraft are self-contained with air conditioning systems, and the aircraft are usually activated to provide comfort temperature and air to the aircraft during flight or during standby when the aircraft is parked on a ground boarding bridge. The aircraft is provided with an air conditioning system which comprises an air conditioning Auxiliary Power Unit (APU for short), the APU is started in the flying state of the aircraft, a large amount of expensive aviation fuel oil is consumed, the service life of the aircraft air conditioning system is shortened, and environmental pollution and the operation cost of the aircraft are also caused.
The APU (Auxiliary Power Unit) is used for providing air-conditioning bleed air and Power for the airplane when a ground main engine is turned off, providing compressed air for starting the engine, and also providing air source and Power for the airplane if the engine is stopped during the flight process, and is generally installed at the tail of the airplane.
For the reasons of energy conservation, protection of the environment of the country and the health of ground personnel, civil aviation management departments in developed countries such as Europe and America set policies that the airplane parked in the airport of the country is required to execute 'the airplane landing, the APU with serious pollution needs to be turned off, and the environment-friendly airport ground support equipment is used'. The policy is widely applied in Europe and America at present.
Based on the above, the aircraft ground air conditioning system is used as an important airport ground guarantee device, when an aircraft waits to fly on the ground (preparation before flight, inspection after flight and the like), the aircraft ground air conditioning system can completely replace an aircraft with aircraft fuel oil as power and is provided with an APU, the cost of the aircraft fuel oil is greatly reduced, and meanwhile, the pollution to the airport environment is reduced.
Aircraft ground air conditioning systems have also begun to be used in several large airports in the country in recent years. The common form is a rectangular box body and a hose which are hung below a boarding bridge, after an airplane stops at the boarding bridge, an APU is closed, and ground facilities are adopted to provide services such as air conditioning, power supply, oil supply, water supply and the like for the airplane.
Currently, aircraft floor air conditioners are divided into three forms of a unit type, a central type and a hybrid type. Wherein: the unit type airplane ground air conditioner is also called a direct expansion type air conditioner, is an air-cooled integrated unit, and is a box body consisting of a light high-efficiency fan, a refrigeration compressor, an air-cooled condenser and a control element, the air outlet temperature can reach 0-2 ℃, the unit type airplane ground air conditioner usually adopts electric refrigeration and electric heating, the air outlet temperature is about 2 ℃, and the unit type airplane ground air conditioner has the characteristics of low investment, high energy consumption and high maintenance cost.
In order to overcome the defect of high energy consumption of the conventional unit type airplane ground air conditioner, an airplane ground air conditioning system with independent temperature and humidity control is urgently needed to be researched.
Disclosure of Invention
The utility model provides a modular aircraft ground air conditioning system increases first heat transfer unit before conventional second heat transfer unit, through first heat transfer unit to outside air preliminary treatment, reduces the energy consumption of second heat transfer unit, compares with unit aircraft ground air conditioning system, the utility model discloses a first heat transfer unit concentrates preliminary treatment to make whole aircraft ground air conditioning system cost greatly reduced.
Realize the utility model discloses the technical scheme of purpose as follows:
a modular aircraft ground air conditioning system comprising: a first heat exchange unit and at least one second heat exchange unit;
the first heat exchange units and each second heat exchange unit are respectively arranged in series, external air enters the shell from the air inlet, and after primary heat exchange is carried out on the external air in the shell through the first heat exchange units, the external air flows to the second heat exchange units for secondary heat exchange and is finally conveyed to different aircraft cabins;
the first heat exchange unit completes primary heat exchange in a gas-water heat exchange mode, and the second heat exchange unit completes secondary heat exchange in a refrigerant heat exchange mode.
The utility model discloses increase first heat transfer unit before conventional second heat transfer unit, through first heat transfer unit to outside air pretreatment, reduce second heat transfer unit's energy consumption, compare with unit aircraft ground air conditioning system, the utility model discloses a first heat transfer unit concentrates pretreatment to make whole aircraft ground air conditioning system cost greatly reduced.
The utility model discloses a first heat transfer unit and second heat transfer unit adopt the form of "one to many", when the second heat transfer unit uses or overhauls, damages the circumstances such as not simultaneously and takes place, can realize second heat transfer unit's reserve of each other.
Because the first heat exchange unit adopts a gas-water heat exchange mode for heat exchange, and the second heat exchange unit adopts a refrigerant for heat exchange, the heat exchange efficiency of the first heat exchange unit is required to be higher than that of the second heat exchange unit in practical application.
As a further improvement of the utility model, the first heat exchange unit comprises a plurality of air-water heat exchangers, and the air-water heat exchangers exchange heat between air flow and water flow;
the water flow pipelines of the plurality of gas-water heat exchangers are arranged in series or in parallel.
As a further improvement of the present invention, each of the second heat exchange units includes a plurality of heat pump devices, and each of the heat pump devices includes a compressor, a reversing valve, a condenser, and an evaporator;
the heat pump device completes the exchange work of the evaporator and the condenser through the reversing valve so as to realize the cold supply and heat supply switching of the second heat exchange unit;
in cold season, after the external air exchanges heat with the first heat exchange unit for the first time, the external air exchanges heat with the evaporator for the second time;
in the heating season, the external air exchanges heat with the condenser for the second time after exchanging heat with the first heat exchange unit for the first time.
As a further improvement of the present invention, the heat pump device of the second heat exchange unit is an air source heat pump;
the water flow pipelines of the plurality of gas-water heat exchangers and the second heat exchange unit are independent.
As a further improvement of the present invention, the heat pump device of the second heat exchange unit is a water source heat pump;
in the cooling season, water flow pipelines of the plurality of gas-water heat exchangers are connected with a water flow pipeline of a condenser in the heat pump device in series, and return water flowing out of the gas-water heat exchangers enters the condenser for continuous use;
in the heating season, water flow pipelines of the plurality of gas-water heat exchangers are connected with a water flow pipeline of an evaporator in the heat pump device in series, and return water flowing out of the gas-water heat exchangers enters the evaporator to be continuously used.
As a further improvement of the present invention, the number of the second heat exchange units is one; the external air exchanges heat with each air-water heat exchanger of the first heat exchange unit one by one and then directly exchanges heat with the second heat exchange unit.
As a further improvement of the utility model, the number of the second heat exchange units is N, and N is more than 2; after the outside air exchanges heat with each air-water heat exchanger of the first heat exchange unit one by one, the outside air is divided into N paths to exchange heat with N second heat exchange units respectively.
As a further improvement, the filter and the frequency conversion fan are installed to the front end of first heat transfer unit, the frequency conversion fan is located between filter and the first heat transfer unit.
As a further improvement of the utility model, first heat transfer unit and every all install the fan between the second heat transfer unit.
As a further improvement, the water baffle is installed between first heat transfer unit and the second heat transfer unit, at the rear end of second heat transfer unit.
The utility model provides a manger plate can select LMDS type manger plate or JS wave type manger plate or PVC manger plate for use, and LMDS type manger plate is the key part of air-conditioning room, all can use under high low wind speed. Can adopt glass fiber reinforced plastic materials or PVC materials, and has the characteristics of small resistance, light weight, high strength, corrosion resistance, aging resistance, good water-gas separation effect, convenient cleaning and durability. The JS wave type water retaining plate is a PVC water retaining plate mainly made of PVC resin, and has the advantages of proper rigidity, impact resistance, ageing resistance, corrosion resistance, fire resistance and the like. The continuous extrusion molding successfully maintains the density and the accurate geometric dimension of the water baffle, and the length of the water baffle can be determined at will. The PVC water baffle can work normally and continuously in the environment of 90-25 ℃.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses increase first heat transfer unit before conventional second heat transfer unit, through first heat transfer unit to outside air pretreatment, reduce second heat transfer unit's energy consumption, compare with unit aircraft ground air conditioning system, the utility model discloses a first heat transfer unit concentrates pretreatment to make whole aircraft ground air conditioning system cost greatly reduced.
2. The utility model discloses well water baffle's effect is mainly "manger plate", because the air has the comdenstion water to appear behind the air water heat exchanger, and the fan wind pressure in the system is very high, and the wind speed is very big, makes the area water in the air easily, all is unfavorable to the part in low reaches. The utility model discloses well air humidifier carries out the humidification to the air, also can make in the air take water, and the purpose that sets up two breakwaters all is for "manger plate".
3. In the utility model, the air intake → air filter → air-water heat exchanger (introducing cold water) → … … → air source heat pump evaporator → water baffle → air supply "is used in cold season; the air intake → the air filter → the air-water heat exchanger (hot water introduction) → … … → the air source heat pump condenser → … … → the air electric heater → the air supply' is used in the heating season.
4. Present aircraft ground air conditioning system is in the heating season, and hot-blast production does not pass through multistage evaporimeter, but uses electric heater heated air, nevertheless the utility model discloses still continue to have energy-efficient advantage by air water heat exchanger heated air in the heating season.
5. The utility model discloses a first heat transfer unit and second heat transfer unit adopt the form of "one to many", when the second heat transfer unit uses or overhauls, damages the circumstances such as not simultaneously and takes place, can realize second heat transfer unit's reserve of each other.
6. Because the first heat exchange unit adopts a gas-water heat exchange mode for heat exchange, and the second heat exchange unit adopts a refrigerant for heat exchange, the heat exchange efficiency of the first heat exchange unit is required to be higher than that of the second heat exchange unit in practical application.
Drawings
FIG. 1 is a functional block diagram of a pair of multi-modular aircraft ground air conditioning systems of an air source heat pump;
FIG. 2 is a schematic block diagram of a combined aircraft ground air conditioning system in which the water flow line of a water source heat pump and the water flow line of a gas-water heat exchanger are used in series;
FIG. 3 is a schematic block diagram of a modular aircraft ground air conditioning system in which the water flow line of the water source heat pump and the water flow line of the air-water heat exchanger are used independently;
FIG. 4 is a functional block diagram of a pair of combined aircraft ground air conditioning systems of an air source heat pump;
FIG. 5 is a schematic block diagram of a modular aircraft ground air conditioning system in which the water flow line of the water source heat pump and the water flow line of the air-water heat exchanger operate independently;
FIG. 6 is a schematic block diagram of a combined aircraft ground air conditioning system in which the water flow line of the water source heat pump and the water flow line of the gas-water heat exchanger are used in series.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
The utility model discloses a modular aircraft ground air conditioning system, include: a first heat exchange unit and at least one second heat exchange unit; the first heat exchange units and each second heat exchange unit are respectively arranged in series, external air enters the shell from the air inlet, and after primary heat exchange is carried out on the external air in the shell through the first heat exchange units, the external air flows to the second heat exchange units for secondary heat exchange and is finally conveyed to different aircraft cabins; the first heat exchange unit completes primary heat exchange in a gas-water heat exchange mode, and the second heat exchange unit completes secondary heat exchange in a refrigerant heat exchange mode.
The first heat exchange unit comprises a plurality of gas-water heat exchangers, and the gas-water heat exchangers exchange heat between air flow and water flow; the water flow pipelines of the plurality of gas-water heat exchangers are arranged in series or in parallel. Each second heat exchange unit comprises a plurality of heat pump devices, and each heat pump device comprises a compressor, a reversing valve, a condenser and an evaporator; the heat pump device completes the exchange work of the evaporator and the condenser through the reversing valve so as to realize the cold supply and heat supply switching of the second heat exchange unit; in cold season, after the external air exchanges heat with the first heat exchange unit for the first time, the external air exchanges heat with the evaporator for the second time; in the heating season, the external air exchanges heat with the condenser for the second time after exchanging heat with the first heat exchange unit for the first time.
The heat pump device of the second heat exchange unit in the utility model is an air source heat pump; the water flow pipelines of the plurality of gas-water heat exchangers and the second heat exchange unit are independent. Certainly, the heat pump device of the second heat exchange unit in the utility model is a water source heat pump; in the cooling season, water flow pipelines of the plurality of gas-water heat exchangers are connected with a water flow pipeline of a condenser in the heat pump device in series, and return water flowing out of the gas-water heat exchangers enters the condenser for continuous use; in the heating season, water flow pipelines of the plurality of gas-water heat exchangers are connected with a water flow pipeline of an evaporator in the heat pump device in series, and return water flowing out of the gas-water heat exchangers enters the evaporator to be continuously used.
As shown in fig. 1-3, the number of the second heat exchange units is N, wherein N is more than 2; after the outside air exchanges heat with each air-water heat exchanger of the first heat exchange unit one by one, the outside air is divided into N paths to exchange heat with N second heat exchange units respectively. Modular aircraft ground air conditioning system includes preprocessing module and a N reposition of redundant personnel module, processing module includes air cleaner, the frequency conversion fan, first heat transfer unit, air humidifier and first breakwater, every reposition of redundant personnel module includes the fan, second heat transfer unit, second breakwater and air electric heater, under frequency conversion fan's effect, outside air accomplishes a heat transfer at preprocessing module, specifically, outside air just exchanges heat with first heat transfer unit after filter filtration earlier, a heat transfer air through air humidifier processing can shunt into N thigh, with a N reposition of redundant personnel module secondary heat transfer. Of course, one or more of the N splitter modules may be turned off, and the primary heat exchange air is split into no more than N streams and is subjected to secondary heat exchange with other splitter modules that are not turned off. When the heat exchange is carried out with any shunting module, the air subjected to primary heat exchange exchanges heat with the second heat exchange unit under the action of the fan in the shunting module. The air after heat exchange with the second heat exchange unit passes through the second water baffle to realize gas-water separation, and then the air after heat exchange is sent into the cabin of the airplane. The heat exchange is carried out in the mode in the cold season, and the air electric heater can be started in the heating season to heat the air after the heat exchange with the second heat exchange unit.
As shown in fig. 4 to 6, there is one second heat exchange unit; the external air exchanges heat with each air-water heat exchanger of the first heat exchange unit one by one and then directly exchanges heat with the second heat exchange unit. The modular aircraft ground air conditioning system comprises: under the action of the fan, external air is firstly filtered by the filter and then exchanges heat with the first heat exchange unit. The first water baffle is installed between the first heat exchange unit and the second heat exchange unit, and after the heat exchange of the outside air and the first heat exchange unit, the air-water separation is realized through the first water baffle, and then the heat exchange is carried out with the second heat exchange unit. And the air after heat exchange with the second heat exchange unit is subjected to gas-water separation through the second water baffle, and then the air after heat exchange is sent into the cabin of the airplane. The heat exchange is carried out in the mode in the cold season, and the air electric heater can be started in the heating season to heat the air after the heat exchange with the second heat exchange unit.
The utility model discloses a first heat transfer unit includes air water heat exchanger group, and air water heat exchanger group undertakes the cold volume about 2/3, and second heat transfer unit undertakes the cold volume about 1/3. The second heat exchange unit comprises a heat exchange unit, the heat exchange unit comprises at least one heat exchange device, and air subjected to heat exchange with the first heat exchange unit exchanges heat with different heat exchange devices one by one. The air-water heat exchange unit comprises at least one air-water heat exchanger, and air exchanges heat with different air-water heat exchangers one by one and then exchanges heat with the second heat exchange unit.
The utility model provides a cold volume is the total energy value that heat transfer unit consumed the interior air heat of shell in unit interval. The utility model discloses select the cold volume that first heat transfer unit undertakes for use to be greater than the cold volume that second heat transfer unit undertakes, reduce second heat transfer unit's energy consumption.
In the utility model, the gas-water heat exchanger unit comprises N gas-water heat exchangers, and N is more than 2; the air exchanges heat with the first air-water heat exchanger and then exchanges heat with the second air-water heat exchanger, and exchanges heat with the second heat exchange unit after exchanging heat with the Nth air-water heat exchanger one by one.
In the utility model, the heat exchange unit comprises M heat exchange devices, and M is more than 2; in the cooling season, the heat exchange equipment is an evaporator, the air cooled by the first heat exchange unit exchanges heat with the first evaporator and then exchanges heat with the second evaporator, and the like, until the air exchanges heat with the Mth evaporator and becomes cold air to be conveyed to the cabin of the airplane; in the heating season, the heat exchange equipment is a condenser, the air heated by the first heat exchange unit exchanges heat with the first condenser and then exchanges heat with the second condenser, and the like until the air exchanges heat with the Mth condenser and then becomes hot air to be conveyed to the cabin of the airplane.
As a first embodiment, as shown in fig. 1, a one-to-many heat exchange method is adopted, wherein the first heat exchange unit is a gas-water heat exchanger, the gas-water heat exchanger exchanges heat between air and water, and water is delivered to the gas-water heat exchanger through a water supply and return pipe network, preferably, the water supply temperature in the water supply and return pipe network is 3 ℃ and the water return temperature is 25 ℃. The second heat exchange unit is an air source heat pump, air exchanges heat with an evaporator of the air source heat pump in a cooling season, and air exchanges heat with a condenser of the air source heat pump in a heating season.
As a second embodiment, as shown in fig. 3, a one-to-many heat exchange method is adopted, wherein the first heat exchange unit is a gas-water heat exchanger, the gas-water heat exchanger exchanges heat between air and water, and water is delivered to the gas-water heat exchanger through a water supply and return pipe network, preferably, the water supply temperature in the water supply and return pipe network is 3 ℃ and the water return temperature is 25 ℃. The second heat exchange unit is a water source heat pump, air exchanges heat with an evaporator of the water source heat pump in a cooling season, and air exchanges heat with a condenser of the water source heat pump in a heating season. The water of the water source heat pump comes from the return water of a conventional air conditioning system.
As a third embodiment, as shown in fig. 2, a one-to-many heat exchange method is adopted, wherein the first heat exchange unit is a gas-water heat exchanger, the gas-water heat exchanger exchanges heat between air and water, and water is delivered to the gas-water heat exchanger through a water supply and return pipe network, preferably, the water supply temperature in the water supply and return pipe network is 3 ℃ and the water return temperature is 25 ℃. The second heat exchange unit is a water source heat pump, air exchanges heat with an evaporator of the water source heat pump in a cooling season, and air exchanges heat with a condenser of the water source heat pump in a heating season. The gas-water heat exchanger and the water source heat pump are used in series, water of the water source heat pump comes from return water of the gas-water heat exchanger, 3 ℃ supplied water enters the gas-water heat exchanger to exchange heat with air to become 25 ℃ return water, the 25 ℃ return water enters the water source heat pump to exchange heat with the refrigerant to become 30 ℃ return water, and then the 30 ℃ return water flows out of the water source heat pump.
As a fourth embodiment, as shown in fig. 4, a one-to-one heat exchange method is adopted, wherein the first heat exchange unit is a gas-water heat exchanger, the gas-water heat exchanger exchanges heat between air and water, and water is delivered to the gas-water heat exchanger through a water supply and return pipe network, preferably, the water supply temperature in the water supply and return pipe network is 3 ℃ and the water return temperature is 25 ℃. The second heat exchange unit is an air source heat pump, air exchanges heat with an evaporator of the air source heat pump in a cooling season, and air exchanges heat with a condenser of the air source heat pump in a heating season.
As a fifth embodiment, as shown in fig. 5, a one-to-one heat exchange method is adopted, wherein the first heat exchange unit is a gas-water heat exchanger, the gas-water heat exchanger exchanges heat between air and water, and water is delivered to the gas-water heat exchanger through a water supply and return pipe network, preferably, the water supply temperature in the water supply and return pipe network is 3 ℃ and the water return temperature is 25 ℃. The second heat exchange unit is a water source heat pump, air exchanges heat with an evaporator of the water source heat pump in a cooling season, and air exchanges heat with a condenser of the water source heat pump in a heating season. The water of the water source heat pump comes from the return water of a conventional air conditioning system.
As a sixth embodiment, as shown in fig. 6, a one-to-one heat exchange method is adopted, wherein the first heat exchange unit is a gas-water heat exchanger, the gas-water heat exchanger exchanges heat between air and water, and water is delivered to the gas-water heat exchanger through a water supply and return pipe network, preferably, the water supply temperature in the water supply and return pipe network is 3 ℃ and the water return temperature is 25 ℃. The second heat exchange unit is a water source heat pump, air exchanges heat with an evaporator of the water source heat pump in a cooling season, and air exchanges heat with a condenser of the water source heat pump in a heating season. The gas-water heat exchanger is connected with the water source heat pump in series for use, and water of the water source heat pump comes from the return water of the gas-water heat exchanger.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A modular aircraft floor air conditioning system, comprising: a first heat exchange unit and at least one second heat exchange unit;
the first heat exchange units and each second heat exchange unit are respectively arranged in series, external air enters the shell from the air inlet, and after primary heat exchange is carried out on the external air in the shell through the first heat exchange units, the external air flows to the second heat exchange units for secondary heat exchange and is finally conveyed to different aircraft cabins;
the first heat exchange unit completes primary heat exchange in a gas-water heat exchange mode, and the second heat exchange unit completes secondary heat exchange in a refrigerant heat exchange mode.
2. The modular aircraft ground air conditioning system of claim 1, wherein the first heat exchange unit comprises a plurality of air-water heat exchangers that exchange heat for an air stream and a water stream;
the water flow pipelines of the plurality of gas-water heat exchangers are arranged in series or in parallel.
3. A modular aircraft ground air conditioning system according to claim 1, wherein each of the second heat exchange units comprises a plurality of heat pump devices, the heat pump devices comprising a compressor, a reversing valve, a condenser and an evaporator;
the heat pump device completes the exchange work of the evaporator and the condenser through the reversing valve so as to realize the cold supply and heat supply switching of the second heat exchange unit;
in cold season, after the external air exchanges heat with the first heat exchange unit for the first time, the external air exchanges heat with the evaporator for the second time;
in the heating season, the external air exchanges heat with the condenser for the second time after exchanging heat with the first heat exchange unit for the first time.
4. A modular aircraft ground air conditioning system according to claim 3, characterised in that the heat pump means of the second heat exchange unit is an air source heat pump;
the water flow pipelines of the plurality of gas-water heat exchangers and the second heat exchange unit are independent.
5. A modular aircraft ground air conditioning system according to claim 3, characterised in that the heat pump means of the second heat exchange unit is a water source heat pump;
in the cooling season, water flow pipelines of the plurality of gas-water heat exchangers are connected with a water flow pipeline of a condenser in the heat pump device in series, and return water flowing out of the gas-water heat exchangers enters the condenser for continuous use;
in the heating season, water flow pipelines of the plurality of gas-water heat exchangers are connected with a water flow pipeline of an evaporator in the heat pump device in series, and return water flowing out of the gas-water heat exchangers enters the evaporator to be continuously used.
6. A modular aircraft ground air conditioning system according to any one of claims 1, 3, 4 or 5, wherein the second heat exchange unit is one; the external air exchanges heat with each air-water heat exchanger of the first heat exchange unit one by one and then directly exchanges heat with the second heat exchange unit.
7. A modular aircraft ground air conditioning system according to claim 1, 3, 4 or 5, characterised in that the number of second heat exchange units is N, N > 2; after the outside air exchanges heat with each air-water heat exchanger of the first heat exchange unit one by one, the outside air is divided into N paths to exchange heat with N second heat exchange units respectively.
8. The modular aircraft floor air conditioning system of claim 7, wherein the front end of the first heat exchange unit has a filter and a variable frequency fan mounted thereto, the variable frequency fan being positioned between the filter and the first heat exchange unit.
9. A modular aircraft ground air conditioning system as claimed in claim 1, wherein a fan is mounted between the first heat exchange unit and each of the second heat exchange units.
10. The modular aircraft floor air conditioning system of claim 1, wherein a water deflector is mounted between the first heat exchange unit and the second heat exchange unit and at the rear end of the second heat exchange unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020894512.8U CN212243876U (en) | 2020-05-25 | 2020-05-25 | Combined type airplane ground air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020894512.8U CN212243876U (en) | 2020-05-25 | 2020-05-25 | Combined type airplane ground air conditioning system |
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| CN212243876U true CN212243876U (en) | 2020-12-29 |
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| CN202020894512.8U Active CN212243876U (en) | 2020-05-25 | 2020-05-25 | Combined type airplane ground air conditioning system |
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