CN1361349A - Electrohydraulic steam turbine controlling system with integrated executor - Google Patents
Electrohydraulic steam turbine controlling system with integrated executor Download PDFInfo
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- CN1361349A CN1361349A CN 00136030 CN00136030A CN1361349A CN 1361349 A CN1361349 A CN 1361349A CN 00136030 CN00136030 CN 00136030 CN 00136030 A CN00136030 A CN 00136030A CN 1361349 A CN1361349 A CN 1361349A
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- controlling element
- final controlling
- oil engine
- lever
- pilot valve
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- 239000007788 liquid Substances 0.000 claims description 23
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 4
- 230000001276 controlling effect Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The controlling system of electromechanical electrohydraulic steam turbine includes a controller and a speed regulating steam valve as well as an integrated executor, which drives the speed regulating steam valve directly after receiving the electric signal the controller outputs. Compared with available technology, the present invention has no oil source and thus no oil pollution happens caused by failure of the electrohydraulic converter; direct driving of speed regulating steam valve by the executor results in fast action of the steam valve and the high system regulating quality and reliability. The present invention is suitable for use in steam turbine of power set.
Description
The present invention relates to steamer mechanical electronic hydraulic regulation and control system in the generator set, adopt particularly that integrated type is mechanical, electrical, the steamer mechanical electronic hydraulic regulation and control system of liquid integrated final controlling element.
Along with development of electric power industry, more and more higher to the automaticity requirement of unit.For adapting to the needs of this development, present Steam Turhine Adjustment control system is more to have adopted electric liquid regulative mode.This system forms (referring to Fig. 1) by controller, electro-control converter (needing outer oil supply source), oil engine and institution of distributing gas's (comprising porthole) etc.Control principle is: controller output electrical signal, by electric liquid conversion equipment, convert the electrical signal to hydraulic pressure signal (being impulse oil pressure), and drive oil engine, the control porthole is realized the control to turbine speed or load.Said system has adopted electric liquid conversion equipment, and this device not only needs outer oil supply source, and quite high to the requirement of oil.This is because the oil that pollutes can cause that faults such as bite appear in electric liquid conversion equipment, influence the normal operation of unit.Therefore the reliability of this system is not high, and cost is higher.
The objective of the invention is to: provide a kind of and adopt that integrated type is mechanical, electrical, the electrohydraulic steam turbine controlling system of liquid integrated final controlling element, it can avoid above-mentioned deficiency.
The object of the present invention is achieved like this: mechanical, electrical, the liquid integrated final controlling element of integrated type has following two characteristics: 1, self is with oil sources; 2, exportable very big power.Apply it in the native system, to replace oil sources and the electric liquid conversion equipment in the original system.Technological scheme of the present invention is: it comprises controller and throttle, it is characterized in that: further comprising mechanical, electrical, the liquid integrated final controlling element of integrated type, after this final controlling element receives the electrical signal of controller output, output drive strength, directly drive throttle, realize control (referring to Fig. 2) turbine speed or load.
The present invention compared with prior art has following characteristics:
1, because the mechanical, electrical and liquid integrated final controlling element of integrated type does not need outer oil supply source, thoroughly solved the electro-control converter Problem of Failure of bringing because of oil pollution, and the power of mechanical, electrical, liquid integrated final controlling element output can directly drive throttle, improved the reliability of system.
2, because mechanical, electrical, the liquid integrated final controlling element of integrated type does not need outer oil supply source, and directly drive throttle, simplified system architecture, also, improved the regulation quality of system, make system operation simple, easy to maintenance because final controlling element is an intelligent design ID.
3, it is adapted at using in the steamer mechanical electronic hydraulic regulation and control system of all types of Turbo-generator Set.
Below embodiment and accompanying drawing thereof by five kinds of control modes providing, further specify the present invention.
Fig. 1 is an electrohydraulic regulator Steam Turhine Adjustment control system skeleton diagram.
Fig. 2 skeleton diagram of the present invention.
Fig. 3 is a schematic representation of directly controlling the throttle mode.
Fig. 4 is the schematic representation by lever control throttle mode.
Fig. 5 is a schematic representation of directly controlling oil engine pilot valve mode.
Fig. 6 is the schematic representation by lever control oil engine pilot valve mode.
Fig. 7 lever feedback is the schematic representation of control oil engine pilot valve mode directly.
Referring to Fig. 2, after mechanical, electrical, the liquid integrated final controlling element of integrated type received the electrical signal of controller output, output drive strength directly drove throttle, realized the control to turbine speed or load.The Placement of this final controlling element and throttle mainly contains following two kinds:
Embodiment one: directly control speed governing and become the porthole mode
Referring to Fig. 3, the connecting rod of mechanical, electrical, the liquid integrated final controlling element 2 of integrated type links to each other with throttle 3, after final controlling element 2 is accepted the control signal of controller 1, directly controls throttle.According to the aperture of throttle,, finish adjustment process by electric feedback.
Embodiment two: by lever control throttle mode
Referring to Fig. 4, different with embodiment one is, mechanical, electrical, the liquid integrated final controlling element 2 of integrated type drives throttle 3 by lever 4, and promptly the two ends of lever are connected with throttle 3 with final controlling element 2 respectively, and the fulcrum of lever is in the centre.
In order to make the present invention can be adapted at using in the Steam Turhine Adjustment control system of existing electric liquid regulative mode, the system of following examples is made up of controller, mechanical, electrical, the liquid integrated final controlling element of integrated type, oil engine and throttle, this final controlling element is accepted the signal of controller, output drive strength, drive oil engine, realize control turbine speed or load.This actuator driven oil engine pilot valve has following three kinds of modes:
Embodiment three: directly control oil engine pilot valve mode
Referring to Fig. 5, main oil pump pressure oil is set up impulse oil pressure through throttling action under the oil engine pilot valve, and mechanical, electrical, the liquid integrated final controlling element 2 of integrated type directly drives oil engine pilot valve 6, keeps oil engine hydraulic pressure feedback.Receive the control signal of controller 1 output when mechanical, electrical, the liquid integrated final controlling element of integrated type after, just drive pilot valve and depart from the neutral position, make oil engine 5 actions, in the oil engine course of action, make during pilot valve resets back by hydraulic pressure feedback, finish adjustment process.
Embodiment four: by lever control oil engine pilot valve mode
Referring to Fig. 6, different with embodiment three is, mechanical, electrical, the liquid integrated final controlling element 2 of integrated type is to drive oil engine pilot valve 6 by lever 4, and promptly the two ends of lever 4 are connected with final controlling element 2, pilot valve 6 respectively, and the fulcrum of lever is in the centre.
Embodiment five: the lever feedback is control oil engine pilot valve mode directly
Referring to Fig. 7, in the system of lever feedback, mechanical, electrical, liquid integrated final controlling element 2 conducts of integrated type are with activity supporting point, drive oil engine pilot valve 6, mechanical, electrical, the liquid integrated final controlling element 2 of integrated type is accepted the signal of controller 1, is that fulcrum drives lever 4 motions with the oil engine hinge, 6 displacements of control pilot valve, make oil engine 5 action, the oil engine displacement makes during pilot valve resets back by the lever feedback, finishes adjustment process.
Adopt same mode of structure for the unit of bleeding, medium pressure servo-motor, realize that by control logic electrothermal load is from whole adjusting.
Claims (5)
1, a kind of integrated executor steamer mechanical electronic hydraulic regulation and control system, it comprises controller and throttle, it is characterized in that: further comprising mechanical, electrical, the liquid integrated final controlling element of integrated type, after this final controlling element receives the electrical signal of controller output, output drive strength directly drives throttle.
2, according to the described steamer mechanical electronic hydraulic of claim 1 regulation and control system, it is characterized in that: said final controlling element drives throttle by lever, and promptly the two ends of lever are connected with throttle with final controlling element respectively, and the fulcrum of lever is in the centre.
3, according to the described steamer mechanical electronic hydraulic of claim 1 regulation and control system, it is characterized in that: further comprising oil engine, after said final controlling element receives the control signal of controller output, just drive pilot valve and depart from the neutral position, make the oil engine action, in the oil engine course of action, make during pilot valve resets back by hydraulic pressure feedback.
4, according to the described steamer mechanical electronic hydraulic of claim 3 regulation and control system, it is characterized in that: said final controlling element drives the oil engine pilot valve by lever, and promptly the two ends of lever are connected with final controlling element, pilot valve respectively.
5, according to the described steamer mechanical electronic hydraulic of claim 3 regulation and control system, it is characterized in that: said final controlling element conduct is with activity supporting point, drive the oil engine pilot valve, above-mentioned final controlling element is accepted the signal of controller, with the oil engine hinge is that fulcrum drives lever motion, control pilot valve displacement makes the oil engine action, and the oil engine displacement makes during pilot valve resets back by the lever feedback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136030 CN1361349A (en) | 2000-12-28 | 2000-12-28 | Electrohydraulic steam turbine controlling system with integrated executor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136030 CN1361349A (en) | 2000-12-28 | 2000-12-28 | Electrohydraulic steam turbine controlling system with integrated executor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1361349A true CN1361349A (en) | 2002-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00136030 Pending CN1361349A (en) | 2000-12-28 | 2000-12-28 | Electrohydraulic steam turbine controlling system with integrated executor |
Country Status (1)
| Country | Link |
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| CN (1) | CN1361349A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392813A (en) * | 2011-06-10 | 2012-03-28 | 辽宁华兴森威科技发展有限公司 | System for adjusting and controlling revolving speed of compressor unit |
-
2000
- 2000-12-28 CN CN 00136030 patent/CN1361349A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392813A (en) * | 2011-06-10 | 2012-03-28 | 辽宁华兴森威科技发展有限公司 | System for adjusting and controlling revolving speed of compressor unit |
| CN102392813B (en) * | 2011-06-10 | 2015-10-14 | 辽宁华兴森威科技发展有限公司 | Compressor unit speed adjustment control system |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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