CN2886450Y - High-speed motor driven reverse pressure boosting type air circulation refrigerating system - Google Patents
High-speed motor driven reverse pressure boosting type air circulation refrigerating system Download PDFInfo
- Publication number
- CN2886450Y CN2886450Y CNU2006200726739U CN200620072673U CN2886450Y CN 2886450 Y CN2886450 Y CN 2886450Y CN U2006200726739 U CNU2006200726739 U CN U2006200726739U CN 200620072673 U CN200620072673 U CN 200620072673U CN 2886450 Y CN2886450 Y CN 2886450Y
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- Prior art keywords
- cooling
- turbine
- compressor
- expreess locomotive
- electric expreess
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- 230000004087 circulation Effects 0.000 title claims abstract description 16
- 230000002441 reversible effect Effects 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 230000003137 locomotive effect Effects 0.000 claims description 29
- 238000005057 refrigeration Methods 0.000 claims description 22
- 230000007547 defect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000009897 systematic effect Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 230000001839 systemic circulation Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a high-velocity motor-driven reversible atmospheric circulation type refrigerating system in the cryogenic technical field. The system mainly comprises a cooling turbine (1), a heat exchanger (2), an air compressor (3) and interlock pipe lines, characterized by also comprising a high-velocity generator (4) coaxial connected with the cooling turbine (1), a air compressor (3). An auxiliary power from the high-velocity generator (4) drives the air compressor (3) to work with the cooling turbine (1) which provides the system with ventilating and cooling power at ground and on the condition of low Mach number to compensate for defect of shortage of cooling capacity on the flight attitude compared with the normal atmospheric circulation type refrigerating system The system has the advantage of a stable work, a less effect from the flight attitude, a high efficiency, a great speed governing property, a highly control accuracy, a greatly improved refrigerating capacity and etc.
Description
Technical field
The reverse-bootstrap air circulation refrigeration system that high-speed electric expreess locomotive of the present utility model drives belongs to refrigeration technology field.
Background technology
At present, China's aircraft gondola environmental control system mainly is conceived to reverse-bootstrap air cycle refrigeration scheme.
Traditional reverse-bootstrap air circulation refrigeration system is by ram-air driven, and ram-air is after the turbine expansion cooling and treat that cool equipment carries out heat exchange, and the gas after the heat exchange is the discharge system after the compressor compression.For traditional reverse-bootstrap air circulation refrigeration system, because ram-air pressure is low, air cycle machine (Air Cycle Machine, ACM) driving force is little, and the turbine groundwork is at little expansion ratio and little enthalpy drop state, and system's refrigerating capacity is limited.For improving the environmental control system refrigerating capacity, the researcher has proposed a kind of up reversal again and has pushed back cold type air cycle refrigeration scheme, because the air themperature behind the cooling device still is lower than ram air temperature, can set up one at the turbine inlet and return cooler, cool off ram-air with system exhaust, reduce turbine intake air temperature, and then increase system's refrigerating capacity.Though this scheme has reclaimed a part of refrigerating capacity than traditional scheme more, DeGrain, and increased the volume of system and the difficulty that connecting pipe is arranged, and nonideal scheme.Along with the environmental control system continuous advancement in technology, the foreign study personnel have proposed the reverse-bootstrap air cycle refrigeration scheme that power turbine drives again, system is made up of cooling turbine, power turbine, heat exchanger and compressor, when system drive power is not enough, ram-air expands in power turbine and exports mechanical power to improve rotating speed, increases cooling turbine temperature drop and system's refrigerating capacity.Above-mentioned several scheme work all depends on state of flight, does not have driving force when shut down on ground, and system does not possess ground ventilation cooling capacity.Can't solve electronic equipment cooling problem under present generation aircraft gondola ground and the low mach state of flight.
In addition, for helicopter, it is in the low-altitude low-speed state of flight mostly, adopts conventional air circulation refrigeration system to have following 2 deficiencies: 1) bleed is very obvious to the engine performance influence; 2) the cold limit of heat exchanger air velocity is low, pressure head is little, makes that heat exchanger size and weight are big.And adopting airborne sweat cooling loop structure complexity, poor reliability and technology immature, the reverse-bootstrap air circulation refrigeration system that drives by high-speed electric expreess locomotive can address this problem.
Summary of the invention
The reverse-bootstrap air circulation refrigeration system that the utility model provides a kind of novel high-speed electric expreess locomotive to drive is to solve electronic equipment cooling problem under basket ring control system ground and the low mach state of flight.
The reverse-bootstrap air circulation refrigeration system that a kind of high-speed electric expreess locomotive drives is made up of cooling turbine, heat exchanger, compressor and associated pipe, it is characterized in that: also comprise one with cooling turbine, the coaxial high-speed electric expreess locomotive that is connected of compressor.
Native system can also increase a high-speed electric expreess locomotive frequency-variable controller, and by control high-speed electric expreess locomotive rotating speed, the regulating system refrigerating capacity improves systematic function coefficient and temperature control precision.
The beneficial effects of the utility model are, stable than this system works of traditional scheme, it is little influenced by state of flight, the efficient height, speed governing is good, control accuracy is high, and refrigerating capacity significantly improves, and possesses ground ventilation cooling capacity, systematic function coefficient and vaporization cycle have comparativity, can effectively solve the problem of aircraft gondola air-conditioning system refrigerating capacity deficiency under ground and low mach state of flight.
This scheme also can be applicable to Environmental Control System for Helicopters.The reverse-bootstrap air circulation refrigeration system that high-speed electric expreess locomotive drives need not from engine bleed, by the motor process auxiliary drive directly from the external environment bleed, obtain low-temperature airflow by the turbine expansion cooling and provide low-temperature receiver for the helicopter environmental control system, reduced the compensatory loss of system, increase refrigerating capacity, improve refrigeration.
And greenhouse effects that the CFC cold-producing medium caused along with people and to the concern of air breakup, CFC working medium is just forbidden gradually, the reverse-bootstrap air cycle refrigeration scheme that high-speed electric expreess locomotive drives adopts air as cold-producing medium, environment there is not any pollution, and simple in structure, volume is little, in light weight, in bullet train and other ground installation, also have broad application prospects.
Description of drawings
Fig. 1 is the utility model systematic schematic diagram.
Fig. 2 is the cooling turbine structure chart.
Fig. 3 is heat exchanger structure figure.
Fig. 4 is the centrifugal compressor structure chart.
Label title among Fig. 1: 1. cooling turbine, 2. heat exchanger, 3. compressor, 4. high-speed electric expreess locomotive, 5. bearing.
Label title among Fig. 2: 6. rectification window, 7. turbine volute, 8. turbo blade.
Label title among Fig. 3: 9. strip of paper used for sealing, 10. fin, 11. dividing plates.
Label title among Fig. 4: 12. compressor volutes, 13. compressor impellers, 14. compressor diffusers, 15. rotating shafts.
The specific embodiment
According to shown in Figure 1, the reverse-bootstrap air circulation refrigeration system that a kind of high-speed electric expreess locomotive of the present utility model drives mainly is made up of cooling turbine 1, heat exchanger 2, compressor 3, high-speed electric expreess locomotive 4 and associated pipe.High-speed electric expreess locomotive 4 and cooling turbine 1, compressor 3 coaxial work.High-speed electric expreess locomotive 4 two ends shaft extensions are connected by the rotating shaft of claw with cooling turbine 1, compressor 3, constitute the electric turbine compressor assemblies.Between cooling turbine 1 and the high-speed electric expreess locomotive 4, a pair of angular contact bearing 5 of assembling between compressor 3 and the high-speed electric expreess locomotive 4.The electric turbine compressor assemblies is connected with heat exchanger 2 cold limits by connecting line.Native system can also increase a high-speed electric expreess locomotive frequency-variable controller, and by control high-speed electric expreess locomotive rotating speed, the regulating system refrigerating capacity improves systematic function coefficient and temperature control precision.
In conjunction with shown in Figure 2, native system adopts the centripetal turbine of the single-stage footpath-axial flow reaction-type that has the semi-open type radial impeller as refrigeration plant.It has single-stage expansion than high (enthalpy drop is big), good manufacturability, permission rotating speed height, simple in structure, the thermal efficiency than advantages such as height.In low discharge, small-power refrigeration plant, obtained using widely.
In conjunction with shown in Figure 3, the heat exchanger of native system is selected the rib of slab plate heat exchanger for use, dull and stereotyped rib-type heat exchanger is used widely on aircraft industry at present as the compact heat exchanger that heat transfer surface area is big, in light weight in a kind of unit volume, volume is little, efficient is high.
In conjunction with shown in Figure 4, utilize the pressurization of centrifugal compressor to discharge system in the native system through the gas after the over-heat-exchanger heat exchange, finish systemic circulation, simultaneously,, improve system's refrigeration because the swabbing action of compressor can increase expansion ratio of turbine.Wherein impeller type is a backward inclined type of impeller.
In conjunction with Fig. 1 operation principle of the present utility model is described: during system works, at first lower the temperature by the ram-air that air intake duct is introduced through cooling turbine 1 expansion, enter heat exchanger 2 and high-temperature gas heat exchange then, the gas behind the absorption heat is again via outside the discharge machine after compressor 3 superchargings.When aircraft is in ground and low mach state of flight, cooling turbine 1, compressor 3 keeps same rotating speed, with flow and approximate work relationship with pressure ratio, this moment, cooling turbine 1 output work was much smaller than compressor 3 wasted works, system needs the auxiliary power input just can finish circulation, native system adds high-speed electric expreess locomotive 4 provides auxiliary power, high-speed electric expreess locomotive 4, cooling turbine 1 common driving compressor work, high-speed electric expreess locomotive 4 directly utilizes airborne power supply as power, increase system rotating speed, raising system refrigerating capacity, make this system under ground and low mach state, still possess the ventilation cooling capacity, remedied conventional air cycle refrigeration system refrigerating capacity defect of insufficient under this state of flight.When the aircraft flight Mach number higher, when the air cycle machine driving force is sufficient, but disable motor, traditional scheme work is pressed by system.
The novel course of work of this use is: at first open high-speed electric expreess locomotive 4, compressor 3 is suction air under motor-driven, negative pressure appears in cooling turbine 1, cooling turbine 1 is imported and exported the acting of expanding under differential pressure action, outlet temperature descends thereupon, when system reaches power-balance, stabilization of speed under a certain rotating speed, system stability work; By regulating high-speed electric expreess locomotive 4 revolution speed control system refrigerating capacitys, closing high-speed motor 4 during end-of-job.If it is less that high-speed electric expreess locomotive 4 operating currents show, air cycle machine driving force abundance be described, but closing high-speed motor 4 at this moment, traditional mode work is pressed by system.
The inventor has carried out the performance test of this system, test is compressor gas supplied by ground installation, by regulating air-supplying valve aperture simulation system hot and cold limit admission pressure and flow, simulate hot and cold limit intake air temperature by the control furnace power, by regulating the Frequency Converter Control motor speed, at stream pressure and the temperature that precision pressure gauge and temperature sensor measurement each point are installed in the import and export of turbine, heat exchanger and compressor, gas supply flow on the hot and cold limit of installing hole plate current flowmeter measurement, hot and cold limit.Result of performance test has drawn the performance parameter of this system under the different conditions, and test data shows that this system still possesses refrigerating capacity, and refrigerating capacity increases with rotating speed under ground and the low mach state.
Claims (2)
1, a kind of reverse-bootstrap air circulation refrigeration system of high-speed electric expreess locomotive driving, form by cooling turbine (1), heat exchanger (2), compressor (3) and associated pipe, it is characterized in that: also comprise one with cooling turbine (1), the coaxial high-speed electric expreess locomotive that is connected of compressor (3) (4).
2, the reverse-bootstrap air circulation refrigeration system of high-speed electric expreess locomotive driving according to claim 1 is characterized in that: also comprise a high-speed electric expreess locomotive frequency-variable controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200726739U CN2886450Y (en) | 2006-04-24 | 2006-04-24 | High-speed motor driven reverse pressure boosting type air circulation refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200726739U CN2886450Y (en) | 2006-04-24 | 2006-04-24 | High-speed motor driven reverse pressure boosting type air circulation refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886450Y true CN2886450Y (en) | 2007-04-04 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200726739U Expired - Fee Related CN2886450Y (en) | 2006-04-24 | 2006-04-24 | High-speed motor driven reverse pressure boosting type air circulation refrigerating system |
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| CN (1) | CN2886450Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102822609A (en) * | 2010-03-25 | 2012-12-12 | 三菱电机株式会社 | Refrigeration cycle apparatus and method for operating same |
| CN104354567A (en) * | 2014-11-08 | 2015-02-18 | 合肥天鹅制冷科技有限公司 | Vehicle-mounted air compression expansion refrigerating system |
| CN110715469A (en) * | 2019-11-28 | 2020-01-21 | 广东美的制冷设备有限公司 | Control method, compressed air heat exchange system, air conditioner and storage medium |
| CN110715476A (en) * | 2019-11-28 | 2020-01-21 | 广东美的制冷设备有限公司 | Operation control method, compressed air heat exchange system and storage medium |
| CN110715474A (en) * | 2019-11-28 | 2020-01-21 | 广东美的制冷设备有限公司 | Operation control method, compressed air heat exchange system and storage medium |
| CN110762912A (en) * | 2019-11-28 | 2020-02-07 | 广东美的制冷设备有限公司 | Operation control method, compressed air heat exchange system and storage medium |
| CN111332477A (en) * | 2020-02-21 | 2020-06-26 | 中国电子科技集团公司第二十九研究所 | Reverse boosting turbine bypass control device and method |
| EP3733518A1 (en) * | 2019-05-02 | 2020-11-04 | Hamilton Sundstrand Corporation | Reverse bootstrap air cycle machine |
| CN112478181A (en) * | 2020-11-25 | 2021-03-12 | 中国航空工业集团公司沈阳飞机设计研究所 | Airborne integrated cooling system |
-
2006
- 2006-04-24 CN CNU2006200726739U patent/CN2886450Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102822609A (en) * | 2010-03-25 | 2012-12-12 | 三菱电机株式会社 | Refrigeration cycle apparatus and method for operating same |
| CN102822609B (en) * | 2010-03-25 | 2014-12-31 | 三菱电机株式会社 | Refrigeration cycle apparatus and method for operating same |
| US9222706B2 (en) | 2010-03-25 | 2015-12-29 | Mitsubishi Electric Corporation | Refrigeration cycle apparatus and operating method of same |
| CN104354567A (en) * | 2014-11-08 | 2015-02-18 | 合肥天鹅制冷科技有限公司 | Vehicle-mounted air compression expansion refrigerating system |
| EP3733518A1 (en) * | 2019-05-02 | 2020-11-04 | Hamilton Sundstrand Corporation | Reverse bootstrap air cycle machine |
| US11014677B2 (en) | 2019-05-02 | 2021-05-25 | Hamilton Sunstrand Corporation | Reverse bootstrap air cycle machine |
| CN110715469A (en) * | 2019-11-28 | 2020-01-21 | 广东美的制冷设备有限公司 | Control method, compressed air heat exchange system, air conditioner and storage medium |
| CN110715476A (en) * | 2019-11-28 | 2020-01-21 | 广东美的制冷设备有限公司 | Operation control method, compressed air heat exchange system and storage medium |
| CN110715474A (en) * | 2019-11-28 | 2020-01-21 | 广东美的制冷设备有限公司 | Operation control method, compressed air heat exchange system and storage medium |
| CN110762912A (en) * | 2019-11-28 | 2020-02-07 | 广东美的制冷设备有限公司 | Operation control method, compressed air heat exchange system and storage medium |
| CN111332477A (en) * | 2020-02-21 | 2020-06-26 | 中国电子科技集团公司第二十九研究所 | Reverse boosting turbine bypass control device and method |
| CN112478181A (en) * | 2020-11-25 | 2021-03-12 | 中国航空工业集团公司沈阳飞机设计研究所 | Airborne integrated cooling system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |