CN101793170A - Miniature steam turbine generator unit - Google Patents
Miniature steam turbine generator unit Download PDFInfo
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- CN101793170A CN101793170A CN201010127261A CN201010127261A CN101793170A CN 101793170 A CN101793170 A CN 101793170A CN 201010127261 A CN201010127261 A CN 201010127261A CN 201010127261 A CN201010127261 A CN 201010127261A CN 101793170 A CN101793170 A CN 101793170A
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Abstract
The invention relates to a miniature steam turbine generator unit, which is characterized by comprising a steam turbine, a thermodynamic system, security system, an adjustment system and a lubricating system, wherein the thermodynamic system, the security system, the adjustment system and the lubricating system are connected with the steam turbine respectively. The miniature steam turbine generator unit has the characteristics of simple structure, small volume and low cost, can adopt rotten branches of fallen leaves and the like as fuels, is convenient to use and maintain and can be effectively ensured to run normally as the security system and the adjustment system are arranged.
Description
Technical field
The present invention relates to a kind of generator set, particularly a kind of miniature steam turbine generator set.
Background technique
At present, in the forest zone lumber jack place and sparsely populated of lumbering, all at a distance of more than 20 kilometers, and also very remote at a distance of the city, electricity consumption is very inconvenient.And abundant inflammable matters such as fallen leaves are arranged on the ground, forest zone, and do not need the cost cost, just can be used as the fuel of a miniature boiler, add that a small-sized steam turbine generator just can solve a lumber jack whole family lumbering and household electricity.Small-sized steam turbine generator below this 20Kw is domestic not to be had, and does not abroad still know to have or not.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: a kind of above-mentioned defective that solved is provided, and simple in structure, volume is little, cost is low, working service miniature steam turbine generator set easily.
The technical solution adopted for the present invention to solve the technical problems is: a kind of miniature steam turbine generator set, it is characterized in that: comprise steam turbine, thermodynamic system, security system, regulating system and lubrication system, thermodynamic system, security system, regulating system and lubrication system are connected with steam turbine respectively.
Described steam turbine comprises bearing support, is mounted with rotating shaft on the bearing support, is set with impeller in the rotating shaft, and the first row moving vane and secondary series moving vane are installed on the impeller side by side, and a side of the first row moving vane is equipped with nozzle, and rotating shaft one end is provided with tachogenerator.
Described thermodynamic system comprises the initial steam pipeline, initial steam pipeline draining system, turbine proper water drain system and sealing system, initial steam pipeline one end connects boiler one end and connects steam turbine, the inferior successively separating valve that is provided with on the initial steam pipeline, steam turbine steam valve assembly, initial steam pipeline draining system comprises the hydrophobic valve pipeline 4 that is connected with the initial steam pipeline, the hydrophobic valve pipeline is connected with trench, the turbine proper water drain system comprises the hydrophobic valve pipeline that is connected with steam turbine with steam turbine steam valve assembly, the hydrophobic valve pipeline is connected with trench, sealing system comprises packing behind the steam turbine front steam seal that is installed in both sides before and after the steam turbine and the steam turbine, the steam turbine front steam seal is connected with the hydrophobic valve pipeline with the back packing, the hydrophobic valve pipeline connects trench, and each pipeline is provided with valve.
Described security system comprises that three select two redundant electronic protections and mechanical flyball overspeed governor switch, and three select two redundant electronic protections to be connected with automatic throttle respectively with mechanical flyball overspeed governor switch; Machinery flyball overspeed governor switch comprises flyball, and flyball one end is connected with spring, and the spring the other end is connected with the bar of launching an attack; Three select two redundant electronic protections to comprise intelligent revolution meter, Siemens's programmable device and electromagnet, and intelligent revolution meter is connected with the Siemens programmable device, and Siemens's programmable device is connected with electromagnet.
Described regulating system comprises modulating valve, main air valve, security system and speed-regulating controller, modulating valve and main air valve are installed in respectively on the steam turbine suction port, modulating valve is connected with the speed-regulating controller signal, main air valve is connected with the security system signal, in the rotating shaft of steam turbine tachogenerator is installed, speed-regulating controller is connected with the tachogenerator signal respectively with security system.
Described lubrication system comprises lubricating grease.
The same prior art of other structures of steam turbine.
During use, the initial steam that comes from boiler enters the automatic throttle of steam turbine through advancing separating valve, enter vaporium by modulating valve again and pass through nozzle, the steam acting of expanding in nozzle becomes speed with heat energy and can rush at the first row moving vane with the speed of supersonic speed 600-900m/s, the high velocity air that comes out from the first row moving vane again by fixing turn to guide vane ring to change to turn to further expansion to quicken to turn to enter the secondary series moving vane and promote the impeller rotation again, impeller set is in rotating shaft, rotation together, be input in generator or the pump by coupling again, generate electricity or drag load.
Steam enters steam turbine through separating valve to steam turbine steam valve assembly and by steam turbine steam valve assembly after entering the initial steam pipeline, steam does work in steam turbine, the condensed water that steam produces by the initial steam pipeline time enters trench by the hydrophobic valve pipeline, the condensed water that produces after steam does work in steam turbine, enter trench by the hydrophobic valve pipeline, gland-packing leakage is introduced trench by drain pipe before and after the steam turbine, directly drains.
Machinery flyball overspeed governor switch is when rated speed; centrifugal force that flyball produces is less than the pretightening force of spring; when rotating speed is the 110%-112% of normal rating rotating speed; centrifugal force will hit greater than initial tension of spring; when rotating speed reduces the back because the centrifugal force minimizing; flyball is got back to the origin-location again under the spring force effect; when flyball hits; strike hits on the bar linkage mechanism; thereby cause whole connecting rod action; the rotating shaft that drives on the steam turbine steam valve assembly is rotated, and makes main inlet throttle-stop valve thread off and close rapidly.Three select two redundant electronic protections to select three intelligent revolution meter for use; adopt three to select two method to control; in use; tachogenerator passes to tachometer with rotary speed information; programmable device carries out computing according to the tachometer detection case, sends the command control electromagnet, closes speed by main air valve and closes main inlet throttle-stop valve; even an intelligent revolution meter breaks down, system's misoperation is shut down.
During steam turbine work, tachogenerator is analyzed the turbine speed signal, if rotating speed overrate but in safety range, tachogenerator sends overspeed signal to speed-regulating controller, after speed-regulating controller is received and is analyzed overspeed signal, send control signal to modulating valve, modulating valve receives that the steam flow (or steam quality) that enters in the steam turbine by adjusting behind the signal regulates turbine speed, thereby realizes automatic regulatory function; If rotating speed exceeds safety range, tachogenerator sends signal to security system, and security system is sent speed pass signal to main air valve after receiving signal, and main air valve is closed the steam turbine main inlet throttle-stop valve after receiving signal, guarantees steam turbine safety.
Lubrication system adopts lubricating grease, and promptly butter is lubricated, and selecting model for use is the universal lithium base grease of GB7324-1994.
The beneficial effect that the present invention had is: the miniature steam turbine generator unit structure is simple, and volume is little, and cost is low, can adopt the rotten branch of fallen leaves to wait and acting as a fuel, and working service is convenient, security system and regulating system the normal operation that can effectively guarantee generator set is set.
Description of drawings
Fig. 1 is the structural representation of steam turbine;
Fig. 2 is the structural representation of thermodynamic system;
Fig. 3～4th, the structural representation of security system;
Fig. 5 is the structural representation of regulating system.
1-1, bearing support among the figure; 1-2, tachogenerator; 1-3, the first row moving vane; 1-4, secondary series moving vane; 1-5, impeller; 1-6, rotating shaft; 1-7, nozzle; 2-1, separating valve; 2-2, initial steam pipeline; 2-3, steam turbine steam valve assembly; 2-4,2-8,2-9, hydrophobic valve pipeline; 2-5, steam turbine front steam seal; Packing behind 2-6, the steam turbine; 2-7, steam turbine; 2-10, trench; 3-1, flyball; 3-2, spring; 3-3, hit bar; 4-1, main air valve; 4-2, electromagnet; 5-1, modulating valve.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further:
Shown in Fig. 1～5, a kind of miniature steam turbine generator set, thermodynamic system, security system, regulating system and lubrication system are connected with steam turbine 2-7 respectively; Steam turbine 2-7 comprises bearing support 1-1, be mounted with rotating shaft 1-6 on the bearing support 1-1, be set with impeller 1-5 on the rotating shaft 1-6, the first row moving vane 1-3 and secondary series moving vane 1-4 are installed on the impeller 1-5 side by side, the side of the first row moving vane 1-3 is equipped with nozzle 1-7, and rotating shaft 1-6 one end is provided with tachogenerator 1-2; Thermodynamic system comprises initial steam pipeline 2-2, initial steam pipeline draining system, turbine proper water drain system and sealing system, initial steam pipeline 2-2 one end connects boiler one end and connects steam turbine 2-7, the inferior successively separating valve 2-1 that is provided with on the initial steam pipeline 2-2, steam turbine steam valve assembly 2-3, initial steam pipeline draining system comprises the hydrophobic valve pipeline 2-4 that is connected with initial steam pipeline 2-2, hydrophobic valve pipeline 2-4 is connected with trench, the turbine proper water drain system comprises the hydrophobic valve pipeline 2-9 that is connected with steam turbine 2-7 with steam turbine steam valve assembly 2-2, hydrophobic valve pipeline 2-9 is connected with trench 2-10, sealing system comprises packing 2-6 behind the steam turbine front steam seal 2-5 that is installed in both sides before and after the steam turbine and the steam turbine, steam turbine front steam seal 2-5 is connected with hydrophobic valve pipeline 2-8 with back packing 2-6, hydrophobic valve pipeline 2-8 connects trench 2-10, and each pipeline is provided with valve; Security system comprises that three select two redundant electronic protections and mechanical flyball overspeed governor switch, and three select two redundant electronic protections to be connected with automatic throttle respectively with mechanical flyball overspeed governor switch; Machinery flyball overspeed governor switch comprises flyball 3-1, and flyball 3-1 one end is connected with spring 3-2, and the spring 3-2 the other end is connected with the bar 3-3 that launches an attack; Three select two redundant electronic protections to comprise intelligent revolution meter, Siemens's programmable device and electromagnet 4-2, and intelligent revolution meter is connected with the Siemens programmable device, and Siemens's programmable device is connected with electromagnet 4-2; Regulating system comprises modulating valve 5-1, main air valve 4-1, security system and speed-regulating controller, modulating valve 5-1 and main air valve 4-1 are installed in respectively on the steam turbine 2-7 suction port, modulating valve 5-1 is connected with the speed-regulating controller signal, main air valve 4-1 is connected with the security system signal, on the rotating shaft 1-6 of steam turbine 2-7 tachogenerator 1-2 is installed, speed-regulating controller is connected with tachogenerator 1-2 signal respectively with security system.
During use, the initial steam that comes from boiler enters the automatic throttle of steam turbine through advancing separating valve, enter vaporium by nozzle 1-7 by modulating valve 5-1 again, the steam acting of expanding in nozzle 1-7 becomes speed with heat energy and can rush at the first row moving vane 1-3 with the speed of supersonic speed 600-900m/s, the high velocity air that comes out from the first row moving vane 1-3 again by fixing turn to guide vane ring to change to turn to further expansion to quicken to turn to enter secondary series moving vane 1-4 and promote impeller 1-5 rotation again, impeller 1-5 is enclosed within on the rotating shaft 1-6, rotation together, be input in generator or the pump by coupling again, generate electricity or drag load.
Steam enters steam turbine 2-7 through separating valve 2-1 to steam turbine steam valve assembly 2-3 and by steam turbine steam valve assembly 2-3 after entering initial steam pipeline 2-2, steam does work in steam turbine 2-7, the steam condensed water that 2-2 produces by the initial steam pipeline time enters trench by hydrophobic valve pipeline 2-4, the condensed water that produces after steam does work in steam turbine 2-7,2-9 enters trench by the hydrophobic valve pipeline, steam turbine front steam seal 2-5 and back packing 2-6 gas leakage are introduced trench by hydrophobic valve pipeline 2-8, directly drain.
Machinery flyball overspeed governor switch is when rated speed; flyball centrifugal force that 3-1 produces is less than the pretightening force of spring 3-2; when rotating speed is the 110%-112% of normal rating rotating speed; centrifugal force will hit greater than spring 3-2 pretightening force; when rotating speed reduces the back because the centrifugal force minimizing; flyball 3-1 gets back to the origin-location again under the spring force effect; when flyball 3-1 hits; strike hits on the bar 3-3 linkage mechanism; thereby cause whole connecting rod action; the rotating shaft that drives on the steam turbine steam valve assembly 2-3 is rotated, and makes main inlet throttle-stop valve thread off and close rapidly.Three select two redundant electronic protections to select three intelligent revolution meter for use; adopt three to select two method to control; in use; tachogenerator 1-2 passes to tachometer with rotary speed information; programmable device carries out computing according to the tachometer detection case, sends command control electromagnet 4-2, closes speed by main air valve 4-1 and closes main inlet throttle-stop valve; even an intelligent revolution meter breaks down, system's misoperation is shut down.
During steam turbine work, tachogenerator 1-2 analyzes steam turbine 2-7 tach signal, if rotating speed overrate but in safety range, tachogenerator 1-2 sends overspeed signal to speed-regulating controller, after speed-regulating controller is received and is analyzed overspeed signal, 5-1 sends control signal to modulating valve, and modulating valve 5-1 receives that the steam flow (or steam quality) that enters in the steam turbine 2-7 by adjusting behind the signal regulates steam turbine 2-7 rotating speed, thereby realizes automatic regulatory function; If rotating speed exceeds safety range, tachogenerator 1-2 sends signal to security system, and security system is sent speed pass signal to main air valve 4-1 after receiving signal, and main air valve 4-1 closes steam turbine 2-7 main inlet throttle-stop valve after receiving signal, guarantees steam turbine 2-7 safety.
Claims (6)
1. miniature steam turbine generator set, it is characterized in that: comprise steam turbine, thermodynamic system, security system, regulating system and lubrication system, thermodynamic system, security system, regulating system and lubrication system are connected with steam turbine respectively.
2. a kind of miniature steam turbine generator set as claimed in claim 1, it is characterized in that: described steam turbine comprises bearing support, be mounted with rotating shaft on the bearing support, be set with impeller in the rotating shaft, the first row moving vane and secondary series moving vane are installed on the impeller side by side, one side of the first row moving vane is equipped with nozzle, and rotating shaft one end is provided with tachogenerator.
3. a kind of miniature steam turbine generator set as claimed in claim 1, it is characterized in that: described thermodynamic system comprises the initial steam pipeline, initial steam pipeline draining system, turbine proper water drain system and sealing system, initial steam pipeline one end connects boiler one end and connects steam turbine, the inferior successively separating valve that is provided with on the initial steam pipeline, steam turbine steam valve assembly, initial steam pipeline draining system comprises the hydrophobic valve pipeline that is connected with the initial steam pipeline, the hydrophobic valve pipeline is connected with trench, the turbine proper water drain system comprises the hydrophobic valve pipeline that is connected with steam turbine with steam turbine steam valve assembly, the hydrophobic valve pipeline is connected with trench, sealing system comprises packing behind the steam turbine front steam seal that is installed in both sides before and after the steam turbine and the steam turbine, the steam turbine front steam seal is connected with the hydrophobic valve pipeline with the back packing, the hydrophobic valve pipeline connects trench, and each pipeline is provided with valve.
4. a kind of miniature steam turbine generator set as claimed in claim 1, it is characterized in that: described security system comprises that three select two redundant electronic protections and mechanical flyball overspeed governor switch, and three select two redundant electronic protections to be connected with automatic throttle respectively with mechanical flyball overspeed governor switch; Machinery flyball overspeed governor switch comprises flyball, and flyball one end is connected with spring, and the spring the other end is connected with the bar of launching an attack; Three select two redundant electronic protections to comprise intelligent revolution meter, Siemens's programmable device and electromagnet, and intelligent revolution meter is connected with the Siemens programmable device, and Siemens's programmable device is connected with electromagnet.
5. a kind of miniature steam turbine generator set as claimed in claim 1, it is characterized in that: described regulating system comprises modulating valve, main air valve, security system and speed-regulating controller, modulating valve and main air valve are installed in respectively on the steam turbine suction port, modulating valve is connected with the speed-regulating controller signal, main air valve is connected with the security system signal, in the rotating shaft of steam turbine tachogenerator is installed, speed-regulating controller is connected with the tachogenerator signal respectively with security system.
6. a kind of miniature steam turbine generator set as claimed in claim 1, it is characterized in that: described lubrication system comprises lubricating grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010127261A CN101793170A (en) | 2010-03-19 | 2010-03-19 | Miniature steam turbine generator unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010127261A CN101793170A (en) | 2010-03-19 | 2010-03-19 | Miniature steam turbine generator unit |
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| CN101793170A true CN101793170A (en) | 2010-08-04 |
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| CN201010127261A Pending CN101793170A (en) | 2010-03-19 | 2010-03-19 | Miniature steam turbine generator unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332858A (en) * | 2011-08-04 | 2012-01-25 | 临沂扬子中天机械制造有限公司 | Direct-current motor speed-limiting device for simple glass edge finishing machine |
| CN102536349A (en) * | 2010-12-17 | 2012-07-04 | 阿尔斯通技术有限公司 | Steam turbine overspeed protection method and system |
| CN102808661A (en) * | 2012-08-20 | 2012-12-05 | 陕西博尔能源科技有限公司 | Axial-flow type generator set utilizing organic rankine cycle (ORC) |
| CN103184937A (en) * | 2011-12-28 | 2013-07-03 | 中国航空工业集团公司沈阳飞机设计研究所 | Jet flow control system |
Citations (5)
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|---|---|---|---|---|
| GB117524A (en) * | 1917-08-27 | 1918-07-25 | British Thomson Houston Co Ltd | Improvements in and relating to Motor Power Systems. |
| EP0004415A1 (en) * | 1978-03-24 | 1979-10-03 | Westinghouse Electric Corporation | System for minimizing valve throttling losses in a steam turbine power plant |
| US5789822A (en) * | 1996-08-12 | 1998-08-04 | Revak Turbomachinery Services, Inc. | Speed control system for a prime mover |
| RU2285136C2 (en) * | 2004-12-14 | 2006-10-10 | Иван Иванович Сташевский | Internal combustion engine |
| CN101542076A (en) * | 2007-05-14 | 2009-09-23 | 三菱重工业株式会社 | Low-pressure steam-recovery turbine generator |
-
2010
- 2010-03-19 CN CN201010127261A patent/CN101793170A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB117524A (en) * | 1917-08-27 | 1918-07-25 | British Thomson Houston Co Ltd | Improvements in and relating to Motor Power Systems. |
| EP0004415A1 (en) * | 1978-03-24 | 1979-10-03 | Westinghouse Electric Corporation | System for minimizing valve throttling losses in a steam turbine power plant |
| US5789822A (en) * | 1996-08-12 | 1998-08-04 | Revak Turbomachinery Services, Inc. | Speed control system for a prime mover |
| RU2285136C2 (en) * | 2004-12-14 | 2006-10-10 | Иван Иванович Сташевский | Internal combustion engine |
| CN101542076A (en) * | 2007-05-14 | 2009-09-23 | 三菱重工业株式会社 | Low-pressure steam-recovery turbine generator |
Non-Patent Citations (2)
| Title |
|---|
| 覃超等: "超临界汽轮机超速保护系统分析", 《电站系统工程》, vol. 23, no. 1, 31 January 2007 (2007-01-31) * |
| 靳智平等: "《电厂汽轮机原理及系统》", 31 October 2004, article "电厂汽轮机原理及系统" * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536349A (en) * | 2010-12-17 | 2012-07-04 | 阿尔斯通技术有限公司 | Steam turbine overspeed protection method and system |
| CN102332858A (en) * | 2011-08-04 | 2012-01-25 | 临沂扬子中天机械制造有限公司 | Direct-current motor speed-limiting device for simple glass edge finishing machine |
| CN103184937A (en) * | 2011-12-28 | 2013-07-03 | 中国航空工业集团公司沈阳飞机设计研究所 | Jet flow control system |
| CN102808661A (en) * | 2012-08-20 | 2012-12-05 | 陕西博尔能源科技有限公司 | Axial-flow type generator set utilizing organic rankine cycle (ORC) |
| CN102808661B (en) * | 2012-08-20 | 2015-05-20 | 陕西博尔能源科技有限公司 | Axial-flow type generator set utilizing organic rankine cycle (ORC) |
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Application publication date: 20100804 |
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