CN201258780Y - Back-to-back power pack of compressor and turbine - Google Patents
Back-to-back power pack of compressor and turbine Download PDFInfo
- Publication number
- CN201258780Y CN201258780Y CNU2008201884033U CN200820188403U CN201258780Y CN 201258780 Y CN201258780 Y CN 201258780Y CN U2008201884033 U CNU2008201884033 U CN U2008201884033U CN 200820188403 U CN200820188403 U CN 200820188403U CN 201258780 Y CN201258780 Y CN 201258780Y
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- CN
- China
- Prior art keywords
- turbine
- compressor
- impeller
- turbo machine
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a power device with a back-to-back compressor and turbine, which comprises a compressor and a turbine. The shell of the compressor and the spiral case of the turbine are arranged against each other in parallel, so that the impeller of the compressor and the turbine wheel of the turbine can form a back-to-back assembly structure; an axial air bearing used for axial positioning is arranged between the impeller of the compressor and the turbine wheel of the turbine; the bearing is arranged in a bearing gap between the smooth discs of the impeller of the compressor and the turbine wheel of the turbine; and the rotating shaft of the impeller of the compressor and the rotating shaft of the turbine wheel of the turbine are arranged vertically and coaxially to be combined as an integrated body which extends outwards to be connected with the cantilever shaft of an outer rotor. The utility model greatly shortens the extension length of the cantilever shaft of the micro turbine generating unit, effectively improves the axial positioning and vibration stability of the rotor rotating at a high speed, and ensures the rotating stability of the rotor of the high-speed unit.
Description
Technical field
The utility model relates to the power plant technical pattern of miniature gas generator set to be improved.
Background technique
Micro fuel engine gets the nod in the world as the power supply facility at removable or distributed power generation station at present, this micro generation unit, the generation power device that gas compressor that its main structure facility is a high speed rotating and turbine are formed.The problem that these power plant exist at present is the linkage structure complexity of gas compressor and turbo machine, and the power loss height influences reliability and life-span that power plant run up.
Summary of the invention
The purpose of this utility model provides a kind of gas compressor and the back-to-back power plant of turbo machine, to improve micro generation unit high speed rotating reliability of operation and life-span.
The purpose of this utility model is to realize by following technological scheme, these power plant comprise gas compressor, turbo machine, it is characterized in that the spiral case of the housing of gas compressor and turbo machine and lean on, form the impeller of gas compressor and the turbine of turbo machine and become assembly structure back-to-back, in the middle of them, be provided with the axial air-bearing of axially locating, this bearing is arranged in the bearing play that compressor impeller and turbine wheel form between the smooth circular plate separately, and the rotating shaft Cheng Zhixiang of the rotating shaft of compressor impeller and turbine wheel is coaxial and that become the protruding and outer device rotor of one, and cantilevered axle is that consubstantiality is connected.
Mutually and also can further be provided for controlling the bearing play pad of the size of bearing play between the spiral case of the housing of the gas compressor that leans on and turbo machine.
The advantage of the invention is: the rotor cantilevered axle of utilizing generator one end to stretch out is installed compressor impeller and turbine, two impellers form back-to-back structure, the centre is provided with the axial air-bearing of axially locating, shortened the extrusion of miniature gas generator set cantilevered axle greatly, effectively improve the rotor axial location and the vibration aspect stability of high speed rotating, guaranteed the stable operation of high speed machine group rotor rotation.
Description of drawings
Fig. 1 is the structural representation of this gas compressor and the back-to-back power plant of turbo machine.
Among the figure, each label is represented respectively: 1, turbine; 2, spiral case; 3, rotor shaft; 4, axial air-bearing; 5, bearing play pad; 6, compressor housings; 7, compressor impeller; 8, inlet guide vane; 9, gas inlet passage; 10, gas compressor gas outlet; 11, insulating layer of asbestos.
Embodiment
Be described in further detail below in conjunction with the CONSTRUCTED SPECIFICATION of accompanying drawing the utility model embodiment:
As shown in drawings, these power plant comprise gas compressor and turbo machine, and described turbo machine comprises turbine 1 and spiral case 2, and described gas compressor comprises compressor housings 6 and compressor impeller 7.The turbine 1 of compressor impeller 7 and turbo machine is provided with back-to-back, and is that consubstantiality is connected by their shared rotor shaft 3 with the cantilevered axle of generator amature.Installation shaft is to air-bearing 4 between the spiral case that compressor housings is connected, the axially locating of the bearing play control rotor shaft that this bearing forms by the smooth circular plate of installing with the mode back-to-back of compressor impeller 7 and turbine 1 separately, and the bearing play pad 5 between the spiral case of housing through being arranged on gas compressor and turbo machine is controlled the size of bearing play.For the heat of high temperature that prevents the spiral case direction passes in the compressor casing, filling insulating layer of asbestos 11 between them.
During this machine work, the electrical equipment frequency-changing control system by whole unit makes permanent magnet generator rotate as motor earlier, drives the together rotation under the axially locating of axial air-bearing 4 of compressor impeller 7 and turbine 1.The suction that the compressor impeller 7 that this moment, extraneous cool air was rotated is produced is introduced by gas inlet passage 9 and inlet guide vane 8, after compressor impeller 7 rotation pressurizations, gas compressor gas outlet 10 outputs by compressor housings, enter pressure expansion air after heating again after the external heated system and send into two of spiral case revolving the inlet of layout, equidirectional turbine 1 high speed rotating that blows together, rotate with speed thereby drive with rotor shaft 3 coaxial compressor impellers that are connected 7 and rotor, after extraneous burning heating efficiency progressively strengthens, the gas temperature of turbine 1 inlet improves gradually, just can drive rotor gradually and enter the specified state that runs up, this moment, outside generator was subjected to the conversion and control of frequency conversion electrical apparatus control system, electric motor state is become generator operation, this unit is just finished and is started to work like this, implements calm the anger normally output and generator operation.
Claims (2)
1. gas compressor and the back-to-back power plant of turbo machine, comprise gas compressor, turbo machine, it is characterized in that the spiral case of the housing of gas compressor and turbo machine and lean on, form the impeller of gas compressor and the turbine of turbo machine and become assembly structure back-to-back, in the middle of them, be provided with the axial air-bearing of axially locating, this bearing is arranged in the bearing play that compressor impeller and turbine wheel form between the smooth circular plate separately, and the rotating shaft Cheng Zhixiang of the rotating shaft of compressor impeller and turbine wheel is coaxial and that become the protruding and outer device rotor of one, and cantilevered axle is that consubstantiality is connected.
2. gas compressor according to claim 1 and the back-to-back power plant of turbo machine, it is characterized in that mutually and the spiral case of the housing of the gas compressor that leans on and turbo machine between also be provided with the bearing play pad of the size that is used to control the bearing play.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201884033U CN201258780Y (en) | 2008-08-11 | 2008-08-11 | Back-to-back power pack of compressor and turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201884033U CN201258780Y (en) | 2008-08-11 | 2008-08-11 | Back-to-back power pack of compressor and turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201258780Y true CN201258780Y (en) | 2009-06-17 |
Family
ID=40773012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201884033U Expired - Fee Related CN201258780Y (en) | 2008-08-11 | 2008-08-11 | Back-to-back power pack of compressor and turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201258780Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869222A (en) * | 2019-04-03 | 2019-06-11 | 大连依勒斯涡轮增压技术有限公司 | A kind of pressure charging system and its centrifugal compressor |
| CN112360567A (en) * | 2020-10-26 | 2021-02-12 | 北京动力机械研究所 | High-speed radial-flow turbine and compressor composite impeller |
| CN115559792A (en) * | 2022-10-09 | 2023-01-03 | 势加透博(成都)科技有限公司 | Supercritical gas power generation device |
-
2008
- 2008-08-11 CN CNU2008201884033U patent/CN201258780Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869222A (en) * | 2019-04-03 | 2019-06-11 | 大连依勒斯涡轮增压技术有限公司 | A kind of pressure charging system and its centrifugal compressor |
| CN112360567A (en) * | 2020-10-26 | 2021-02-12 | 北京动力机械研究所 | High-speed radial-flow turbine and compressor composite impeller |
| CN115559792A (en) * | 2022-10-09 | 2023-01-03 | 势加透博(成都)科技有限公司 | Supercritical gas power generation device |
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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: 20090617 Termination date: 20110811 |