CN2795751Y - High speed motor driven high efficiency air refrigerator - Google Patents
High speed motor driven high efficiency air refrigerator Download PDFInfo
- Publication number
- CN2795751Y CN2795751Y CN 200520022928 CN200520022928U CN2795751Y CN 2795751 Y CN2795751 Y CN 2795751Y CN 200520022928 CN200520022928 CN 200520022928 CN 200520022928 U CN200520022928 U CN 200520022928U CN 2795751 Y CN2795751 Y CN 2795751Y
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- turbine
- air
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- speed electric
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Abstract
The utility model relates to a high speed motor driven compact type high efficiency air refrigerator, which is composed of a centrifugal compressor, a high-speed electric machine, a radial-axial flow turbine and a bearing body, wherein the compressor and the turbine are positioned on both axial sides of the high-speed electric machine, and the compressor, the turbine and the high-speed electric machine coaxially work. A compressor impeller, a turbine disc and a rotor of the high-speed electric machine respectively pass through a rolling bearing, which belongs to a double supporting point support structure. The utility model can simultaneously complete the air pressurizing function and the cooling function of the traditional air refrigerator, which can cause the air refrigerator to get rid of the dependence of a pressurization air source. The utility model has the advantages of small size, light weight and convenient installation and use.
Description
Affiliated technical field
The utility model relates to a kind of open type air cycle refrigeration device, and it is applicable to aeronautical environment control and air-conditioning system industry, also can be applicable to other industrial circles, as surface car air-conditioning, mine safety ventilate, agricultural greenhouse is lowered the temperature and food product refrigeration is fresh-keeping etc.
Background technology
Cold air machine is the vitals of environment control and air-conditioning system.As refrigerant, the principle that is converted into mechanical power according to heat energy provides refrigeration for equipment with air for it.The conventional air cycle refrigeration system generally includes pressurization air source, heat exchanger with convenient pressure and the cold air machine of being made up of compressor and turbine.The air pressure of source of the gas must be higher than the pressure of turbine outlet air, could form pressure differential like this and overcome the pipeline runner and the frictional resistance of cold air machine inside, drives the cold air machine running.This has special-purpose supercharging equipment with regard to the source of the gas that requires air cycle machine, and the weight and volume of system is big, is not easy to use.
Summary of the invention
The purpose of this utility model is in order to overcome the dependence of conventional air refrigeration machine to pressurization air source, and the highly effective air refrigeration machine that provides a kind of compact conformation, volume high-speed electric expreess locomotive little, easy to use to drive is with the range of application of expansion cold air machine.
Between centrifugal-flow compressor C that the purpose of this utility model is achieved in that at the conventional air refrigeration machine and the footpath axial flow turbine T, the high-speed electric expreess locomotive M of a coaxial job has been installed.Adopt the form location of step end cap 10 and 6 between high-speed electric expreess locomotive housing 9 and compressor housings 12 and the turbine shroud 4 respectively and closely cooperate.There is the location ladder at electric machine casing inwall middle part, is used for the location and installation of motor stator 7.Rotor 8 is fastened in the rotating shaft 1 by hot pressing.The compressor impeller 11 and the turbine disk 3 are fastened on the positioning step place at rotating shaft two ends respectively by shaft end nut 13 and 2.One secondary ball bearing 5 has been installed respectively between rotor 8 and compressor impeller 11 and the turbine disk 3, has been formed two point supporting structures.
Operation principle of the present utility model as shown in Figure 1.Compressor absorbs the output work of high-speed electric expreess locomotive and the expansion work of turbine, will be compressed into the pressurized air with certain pressure head from the air of common source of the gas; The high temperature air acting of expanding in turbine becomes Cryogenic air, and refrigerating capacity can directly be provided.The high temperature air of the pressurized air of blower outlet and turbine inlet can be a same road air, also can be the air of not going the same way.Because the utility model can be finished the refrigerating function of supercharging air function and conventional air refrigeration machine simultaneously, therefore can avoid the dependence of cold air machine for pressurization air source, reduce energy dissipation, be a kind of highly effective air refrigeration machine therefore.
The feature of motor is in the utility model: can be the alternating current asynchronous high-speed electric expreess locomotive that directly uses three-phase alternating current, also can be to use galvanic brush DC high-speed electric expreess locomotive.Decide on air-flow running parameter and power grade motor speed 2～70,000 rev/min.
Assembling of the present utility model is easy.Earlier motor stator is installed in the electric machine casing, the rotating shaft that installs rotor is packed in the electric machine casing, ball bearing and compressor impeller (or turbine disk) are installed respectively at the rotating shaft two ends then.Compact overall structure, volume is little, and is in light weight, is convenient to install and use.
Annular radiating fin has been installed on the electric machine casing of the present utility model, can have been strengthened the heat radiation of motor.In addition, can perforate on the sealing motor wall, introduce little air and can realize the forced ventilation heat radiation, effectively solve the heat dissipation problem of motor.
The lubricating system of the utility model middle (center) bearing is grease lubrication.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an application example schematic diagram of the present utility model, i.e. the electronic reverse-bootstrap ram-air of aircraft gondola refrigeration machine scheme.
The specific embodiment
Application example below in conjunction with Fig. 2 is done more detailed description to the utility model.
The compressor C and the turbine T of aircraft gondola tradition reverse-bootstrap ram-air refrigeration machine use with one control air---the ram-air that produces during aircraft flight.Ram-air at first through the turbine T cooling of expanding, provides refrigeration by the aircraft gondola then, take away equipment heating after, again through the compression of compressor C and discharge gondola, realize an open circulation.The shortcoming of this working method is: the pressure of ram-air is lower, and is little with the difference of compressor delivery pressure, so the driving force of cold air machine is little.When if aircraft is shut down on ground, there is not pressure differential between turbine inlet and the blower outlet, whole cold air machine can't be worked.
Adopt after the utility model, the low amounts of power that high-speed electric expreess locomotive M only need rely on aircraft to provide can remedy refrigeration machine driving force defect of insufficient, thereby improves the refrigeration machine performance, satisfies the refrigeration demand of aircraft gondola.When aircraft floor was shut down, high-speed electric expreess locomotive M drive cold air machine made aircraft obtain the ground refrigerating capacity, can avoid the dependence to ground air-conditioning car, has improved battlefield survival.
Claims (5)
1. open type air cycle refrigeration device with cramped construction, critical piece is compressor, motor and turbine.It is characterized in that the compressor of opinion be centrifugal-flow compressor, the turbine of opinion be the footpath axial flow turbine, the motor of opinion be closed high-speed electric expreess locomotive.
2. refrigerating plant according to claim 1 is characterized in that: high speed rotor of motor in the rotating shaft between the compressor impeller and the turbine disk, adopt two secondary ball bearings to form two fulcrum structures.
3. according to claim 1 and 2 described refrigerating plants, wherein the feature of motor is: can be the alternating current asynchronous high-speed electric expreess locomotive that directly uses three-phase alternating current, also can be to use galvanic brush DC high-speed electric expreess locomotive.Decide on air-flow running parameter and power grade motor speed 2～70,000 rev/min.
4. according to claim 1 and 2 described refrigerating plants, it is characterized in that: bearing adopts grease lubrication.
5. according to claim 1 and 2 described refrigerating plants, it is characterized in that: electric machine casing adopts the ring fin heat radiation, can perforate on the sealing motor wall, and introduce little air and realize ventilation and heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022928 CN2795751Y (en) | 2005-04-21 | 2005-04-21 | High speed motor driven high efficiency air refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520022928 CN2795751Y (en) | 2005-04-21 | 2005-04-21 | High speed motor driven high efficiency air refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795751Y true CN2795751Y (en) | 2006-07-12 |
Family
ID=36813507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520022928 Expired - Fee Related CN2795751Y (en) | 2005-04-21 | 2005-04-21 | High speed motor driven high efficiency air refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795751Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868677B (en) * | 2007-11-23 | 2012-10-03 | 乔治洛德方法研究和开发液化空气有限公司 | Cryogenic refrigeration method and device |
| CN104930744A (en) * | 2015-06-10 | 2015-09-23 | 同济大学 | Pure electric vehicle heat pump air conditioner without external heat exchanger |
| CN109695983A (en) * | 2017-10-20 | 2019-04-30 | 南京科技职业学院 | A kind of magnetic suspension air cycle refrigerating machine |
-
2005
- 2005-04-21 CN CN 200520022928 patent/CN2795751Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868677B (en) * | 2007-11-23 | 2012-10-03 | 乔治洛德方法研究和开发液化空气有限公司 | Cryogenic refrigeration method and device |
| CN104930744A (en) * | 2015-06-10 | 2015-09-23 | 同济大学 | Pure electric vehicle heat pump air conditioner without external heat exchanger |
| CN109695983A (en) * | 2017-10-20 | 2019-04-30 | 南京科技职业学院 | A kind of magnetic suspension air cycle refrigerating machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060712 Termination date: 20130421 |