CN211372810U - Fuel oil driven aircraft ground air conditioning unit with multiple condensing fans - Google Patents
Fuel oil driven aircraft ground air conditioning unit with multiple condensing fans Download PDFInfo
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- CN211372810U CN211372810U CN201921764866.4U CN201921764866U CN211372810U CN 211372810 U CN211372810 U CN 211372810U CN 201921764866 U CN201921764866 U CN 201921764866U CN 211372810 U CN211372810 U CN 211372810U
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Abstract
The utility model relates to an aircraft ground air conditioning field, especially a fuel drive aircraft ground air conditioning unit of many condensation fans. A fuel oil driven aircraft ground air conditioning unit with multiple condensing fans comprises a plurality of condensing fans. Because each condensing fan can be started and stopped according to the environment temperature or the load condition of the air conditioning unit, the air conditioning unit has higher energy efficiency compared with the traditional fuel-driven aircraft air conditioning unit; moreover, when the air conditioning unit is low in working load, part of the condensing fans can be turned off, so that compared with the traditional fuel oil driven aircraft air conditioning unit, the noise is lower; finally, when a certain condensing fan breaks down, the air conditioning unit cannot work, and the reliability of the air conditioning unit is improved.
Description
Technical Field
The utility model relates to an aircraft ground air conditioning field, especially a fuel drive aircraft ground air conditioning unit of many condensation fans.
Background
After the airplane stays or lands on the airport, the main engine of the airplane stops working, but the airplane is in an open area of the airport and is subjected to strong solar radiation and ground reflection in summer to cause the greenhouse effect in the airplane, so that the internal temperature of the airplane is abnormally high before the airplane is restarted, and the entrance of members of the airplane and passengers is inconvenient; in winter, the outside temperature is cold, and heating and freezing prevention and improvement of the comfort environment of passengers are also needed. During the standby period of the airplane on the ground, due to the characteristic of the airtight effect of the airplane, no new air is supplied to the outside, and a series of problems of oxygen deficiency of personnel and the like are caused. The temperature regulation and ventilation work in the airplane before and after the airplane sails can be completed by the ground air conditioner of the airplane. The aircraft ground air conditioner sucks in environment fresh air from the outside, cools or heats the air (or additionally filters and dehumidifies) through the work of the aircraft ground air conditioner, and conveys the air to the internal space of the aircraft parked on the ground under specific flow and pressure through a high-pressure air supply hose to adjust the air environment in the aircraft cabin to keep the air environment at 22-26 ℃ so as to meet the comfort requirement of passengers and the ventilation requirement of air exchange in the aircraft.
In the industry, a fuel oil driven aircraft ground air conditioning unit is generally only provided with one condensing fan, and once the condensing fan fails, the unit cannot be used; in addition, the condensation fan can not be shut down during operation, and is in a high-load working state for a long time, so that the service life of the condensation fan is shortened, and the energy consumption of the unit is increased.
Simultaneously, the regulation that the aircraft ground air conditioning unit was realized through collocation converter to the scroll compressor that generally adopts in the trade fuel oil drive aircraft, and the problem that exists is: the regulating range of the frequency converter is limited; the compressor is always in a full-load working state, so that the energy consumption is increased, and the service life of the compressor is shortened, thereby influencing the service life of the air conditioning unit.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: the fuel-driven aircraft ground air conditioning unit with the multiple condensing fans is capable of shutting down the condensing fans, and aims to solve the problems that the existing fuel-driven aircraft ground air conditioning unit is low in energy efficiency, high in noise and short in service life due to the fact that the condensing fans cannot be shut down.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a fuel drive aircraft ground air conditioning unit of many condensation fans, includes condenser and a plurality of condensation fan, and the condensation fan is located air conditioning unit's air outlet, and the condenser is the air flow cooperation with the condensation fan, and the condensation fan will accomplish the air with the refrigerant heat exchange in the condenser under the air flow effect, discharges air conditioning unit through the air outlet.
Because each condensing fan can be started and stopped according to the environmental temperature, the air conditioning unit has higher energy efficiency compared with the traditional fuel oil driven aircraft air conditioning unit; moreover, when the air conditioning unit is low in working load, part of the condensing fans can be turned off, so that compared with the traditional fuel oil driven aircraft air conditioning unit, the noise is lower; finally, when a certain condensing fan breaks down, the air conditioning unit cannot work, and the reliability of the air conditioning unit is improved.
Preferably, the plurality of condensing fans are the same condensing fan.
Preferably, the condensing fans are located in the same wall or on the wall surface of the air conditioning unit, and the condensing fans are uniformly distributed. The air conditioner simplifies equipment, saves cost, and enables air to flow more smoothly, thereby further improving the energy utilization efficiency of the air conditioning unit.
Preferably, the number of condensing fans is 4, 6, 8 or 9.
Preferably, the air conditioner further comprises a condensation pressure sensor for measuring the pressure of the refrigeration medium in the condenser and a controller for controlling the air conditioning unit, wherein the condensation pressure sensor is connected with the controller in a wired or wireless mode. When the mode is adopted, the condensing pressure sensor transmits the measured pressure information to the controller, and the controller adjusts the running state of the air conditioner according to the received information, so that the running of the condensing fan is matched with the running load of the air conditioner, and the energy efficiency is further improved.
By adopting the mode, the constant control of the condensation temperature of the air conditioner can be realized, namely after the condensation temperature is set by the system, along with the change of the environment temperature or the load of the ground air conditioning unit of the airplane, the system condensation pressure sensor transmits the collected pressure signal to the control system, the control system compares the detected real-time pressure with the set pressure, and the control system sends an instruction to the starting and stopping quantity of the condensation fan through system operation, so that the system always runs in the optimal state. When the condensing pressure of the system is higher than a set value, the unit starts 1 condensing fan until all fans are started. And when the condensation temperature is lower than a set value, the unit closes 1 condensation fan until all fans are closed.
Preferably, the condensation pressure sensor is connected with the controller in a CAN bus mode.
Preferably, the air conditioning unit comprises a plurality of screw compressors, each screw compressor is connected with at least one condenser, the screw compressors are screw compressors with stepless speed regulation, the rated powers of the screw compressors are different, and the number of the screw compressors is at least two.
In this way, the air conditioning unit comprises a plurality of screw compressors, each screw compressor is connected with at least one condenser, the screw compressors are screw compressors with stepless adjustment of rotating speed, the rated powers of the screw compressors are different, and the number of the screw compressors is at least two. The utility model discloses screw compressor's rotational speed can infinitely variable control, makes the compressor can set up the rotational speed of self like this in order to match different operational environment to it is extravagant to have reduced the energy that produces because compressor operating speed and environment are unmatched. Because there are a plurality of helical-lobe compressors, so when using the air conditioner can set for arbitrary helical-lobe compressor to start or shut down according to the needs of work, just so can further enlarge the utility model discloses the air conditioner is to the control range of operating power. And simultaneously, the utility model discloses carry out electrodeless regulation according to the actual load that is suitable for the object, the compressor can not be in full load operation always, so life also obtains the extension.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. because each condensing fan can be started and stopped according to the environment temperature or the load of the air conditioning unit, the air conditioning unit has higher energy efficiency compared with the traditional fuel-driven aircraft air conditioning unit;
2. when the working load of the air conditioning unit is low, part of the condensing fans can be turned off, so that compared with the traditional fuel oil driven aircraft air conditioning unit, the noise is lower;
3. when a certain condensation fan breaks down, the air conditioning unit cannot work, and the reliability of the air conditioning unit is improved.
Drawings
FIG. 1 is a schematic view of an electrically powered aircraft ground air conditioning unit employing the structure of the present invention;
FIG. 2 is a system schematic of the present invention;
the following are marked in the figure: the system comprises a screw compressor 1, a condensation pressure sensor 2, a condensation fan 3, a condenser 4, an evaporator 5, a blower 6, a controller 7, a throttling element 8, an ambient temperature sensor 9 and a generator 100.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1, as shown in fig. 1-2:
the utility model provides a many condensation fan 3's fuel drive aircraft ground air conditioning unit, includes condenser 4 and a plurality of condensation fan 3, and condensation fan 3 is located air conditioning unit's air outlet, and condenser 4 and condensation fan 3 are the air flow cooperation, and condensation fan 3 will accomplish the air with the refrigerant heat exchange in condenser 4 under the air flow effect, discharge air conditioning unit through the air outlet.
Because each condensing fan 3 can be started and stopped according to the environmental temperature, the air conditioning unit has higher energy efficiency compared with the traditional fuel oil driven aircraft air conditioning unit; moreover, when the air conditioning unit is low in working load, part of the condensing fan 3 can be turned off, so that compared with the traditional fuel oil driven aircraft air conditioning unit, the noise is lower; finally, when a certain condensing fan 3 breaks down, the air conditioning unit cannot work, and the reliability of the air conditioning unit is improved.
In addition to the above embodiments, as a preferred embodiment, the plurality of condensing fans 3 are the same condensing fan 3.
On the basis of the above embodiment, as a preferred embodiment, the condensing fans 3 are located in the same wall or on a wall surface of the air conditioning unit, and the condensing fans 3 are uniformly distributed. The air conditioner simplifies equipment, saves cost, and enables air to flow more smoothly, thereby further improving the energy utilization efficiency of the air conditioning unit.
On the basis of the above embodiment, as a preferable embodiment, the number of the condensing fans 3 is 4, 6, 8, or 9.
On the basis of the above embodiment, as a preferred embodiment, the air conditioning unit further includes a condensation pressure sensor 2 for measuring the pressure of the refrigerant in the condenser 4 and a controller for controlling the air conditioning unit, and the condensation pressure sensor 2 is connected with the controller in a wired or wireless manner. When the mode is adopted, the condensing pressure sensor 2 transmits the measured pressure information to the controller, and the controller adjusts the running state of the air conditioner according to the received information, so that the running of the condensing fan 3 is matched with the running load of the air conditioner, and the energy efficiency is further improved.
By adopting the mode, the constant control of the condensation temperature of the air conditioner can be realized, namely after the condensation temperature is set by the system, along with the change of the environment temperature or the load of the ground air conditioning unit of the airplane, the system condensation pressure sensor 2 transmits the collected pressure signal to the control system, the control system compares the detected real-time pressure with the set pressure, and the control system sends an instruction to the starting and stopping quantity of the condensation fan 3 through system operation, so that the system always runs in the optimal state. When the condensing pressure of the system is higher than a set value, the unit starts 1 condensing fan 3 until all fans are started. And when the condensation temperature is lower than the set value, the unit closes 1 condensation fan 3 until all the condensation fans 3 are closed.
In addition to the above embodiments, as a preferred embodiment, the condensation pressure sensor 2 is connected to the controller by a CAN bus system.
Example 2, as shown in fig. 1-2:
an air conditioner comprises a plurality of screw compressors 1, wherein the screw compressors 1 are compressors with stepless regulation of rotating speed, and the rated powers of the screw compressors 1 are different. The rotational speed of the screw compressor 1 can be adjusted steplessly, so that the compressor can be set to match different working environments at the rotational speed, and energy waste caused by mismatching of the working rotational speed of the compressor and the environments is reduced. Because there are a plurality of helical-lobe compressor 1, so when using the air conditioner can set for arbitrary helical-lobe compressor 1 to start or shut down according to the needs of work, just so can further expand the utility model discloses the air conditioner is to the control range of operating power. Meanwhile, stepless regulation is carried out according to the actual load of an applicable object, and the compressor cannot be always in full-load operation, so that the service life is prolonged.
In addition to the above embodiments, it is preferable that the number of the screw compressors 1 is at least two.
Example 3, as shown in FIGS. 1-2:
a fuel powered aircraft ground air conditioning unit comprising the air conditioner of embodiment 2.
The fuel-driven aircraft ground air conditioning unit of the embodiment adopts the air conditioner, so that any screw compressor 1 can be set to be started or stopped according to the working requirement, the adjusting range of the air conditioner to the working power is further expanded, stepless adjustment can be performed according to the actual load of an applicable object, the screw compressor 1 cannot be in full-load operation all the time, and the service life of the air conditioning unit is prolonged.
On the basis of the above embodiment, as a preferable scheme, the condenser further comprises a controller 7 and a condensation pressure sensor 2, and the condensation pressure sensor 2 is connected with the controller 7 in a wired or wireless manner. When the mode is adopted, the condensing pressure sensor 2 transmits the system load condition information to the controller 7, and the controller 7 adjusts the running state of the screw compressor 1 according to the received system load condition information of the aircraft ground air conditioning unit, so that the running and the load of the screw compressor 1 are matched, and the energy efficiency can be further improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A fuel oil driven aircraft ground air conditioning unit with multiple condensing fans is characterized by comprising a condenser and a plurality of condensing fans; the air conditioning unit is characterized by further comprising a controller used for controlling the air conditioning unit and a fuel oil driven generator, wherein the controller is communicated with the generator through a lead, and the generator supplies energy to the air conditioning unit through the controller; the condensation fan is located at an air outlet of the air conditioning unit, the condenser is in air flow fit with the condensation fan, and the condensation fan finishes air heat exchange with a refrigerating medium in the condenser under the action of air flow and discharges the air conditioning unit through the air outlet.
2. An aircraft ground air conditioning unit according to claim 1, characterised in that the plurality of condensing fans are identical condensing fans.
3. An aircraft floor air conditioning unit according to claim 2 in which the condensing fans are located in or on the same wall of the air conditioning unit, the condensing fans being equispaced.
4. An aircraft ground air conditioning assembly according to claim 3, characterised in that the number of condensing fans is 4, 6, 8 or 9.
5. An aircraft ground air conditioning unit according to any of claims 1 to 4, further comprising a condensing pressure sensor for measuring the pressure of the refrigerant medium in the condenser and a controller for controlling the air conditioning unit, the condensing pressure sensor being connected to the controller by wire or wirelessly.
6. An aircraft ground air conditioning unit according to claim 5, characterised in that the condensation pressure sensor is connected to the controller by means of a CAN bus.
7. An aircraft ground air conditioning unit according to claim 5, characterised in that the air conditioning unit comprises a plurality of screw compressors, each screw compressor being connected to at least one of the condensers, the screw compressors being screw compressors with a steplessly adjustable rotational speed, the screw compressors being of different nominal power from one another, the number of screw compressors being at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921764866.4U CN211372810U (en) | 2019-10-18 | 2019-10-18 | Fuel oil driven aircraft ground air conditioning unit with multiple condensing fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921764866.4U CN211372810U (en) | 2019-10-18 | 2019-10-18 | Fuel oil driven aircraft ground air conditioning unit with multiple condensing fans |
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| CN211372810U true CN211372810U (en) | 2020-08-28 |
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| CN201921764866.4U Active CN211372810U (en) | 2019-10-18 | 2019-10-18 | Fuel oil driven aircraft ground air conditioning unit with multiple condensing fans |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856863A (en) * | 2021-01-15 | 2021-05-28 | 武汉清湛科技有限公司 | Automatic early warning device and method for heat dissipation fault of condenser in refrigeration system |
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2019
- 2019-10-18 CN CN201921764866.4U patent/CN211372810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856863A (en) * | 2021-01-15 | 2021-05-28 | 武汉清湛科技有限公司 | Automatic early warning device and method for heat dissipation fault of condenser in refrigeration system |
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