CN108507792A - A kind of steam fast adjuster and method - Google Patents
A kind of steam fast adjuster and method Download PDFInfo
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- CN108507792A CN108507792A CN201810326654.1A CN201810326654A CN108507792A CN 108507792 A CN108507792 A CN 108507792A CN 201810326654 A CN201810326654 A CN 201810326654A CN 108507792 A CN108507792 A CN 108507792A
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- steam
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses a kind of steam fast adjuster and methods, include mainly：Touch screen, PLC controller, servo-driver, servo motor, electric cylinder and regulating valve；The PLC controller is connected with the touch screen, servo-driver respectively by cable, the servo-driver is connected by cable with the servo motor, the servo motor is connected by mechanical keyway with electric cylinder, and the electric cylinder is connected by mechanical keyway with the regulating valve.A kind of steam fast adjuster and method of the present invention keeps pressure stability, valve to be accurately positioned when the experiment of separate unit Turbo-generator Set transient response may be implemented, and governing speed is fast, quick, the advantages of accurately controlling of steam flow in pipeline.
Description
Technical field
The present invention relates to steam regulating device fields, and in particular, to a kind of steam fast adjuster and method.
Background technology
It is tested in Ship Power Station, emergency power station, is both needed to carry out the performance of Turbo-generator Set in the experiments such as distributed power station
Test.The transient responses such as the rotating speed to unit, voltage are needed to test in testing, to examine unit in impact, dash forward and unload
Fluctuation and the recovery time of rotating speed and voltage are exported under load condition.Test process is by the load of Turbo-generator Set from fully loaded wink
When it is prominent unload to zero load, then need the stabilization for keeping steam pressure in the process from unloaded instantaneous impact to fully loaded again, so as to
Complete experimental test task.Under conditions of prominent load removal, unit gas consumption reduces suddenly, and pipeline steam pressure can rise rapidly
Height reaches safety valve jumping up after safety valve jumping up pressure, and steam pressure reduces rapidly, and cannot meet the normal work of Turbo-generator Set
Make steam pressure requirement, unit will be shut down, and experiment can not be completed.Equally there is larger shadow to system pipeline after safety valve jumping up simultaneously
It rings.Under conditions of shock loads, unit gas consumption increases suddenly, and steam pressure reduces rapidly, and cannot meet steam turbine generator
Group normal work steam pressure requirement, causes compressor emergency shutdown.
Therefore, when previous Turbo-generator Set single unit is in such experiment, steam pressure changes greatly, and experiment can not be complete
At steam supply system also can not safe and stable operation.The invention of steam fast adjuster, can be in separate unit steam turbine generator
When group transient response experiment, pressure stability is kept, solves the above problem well.
Steam fast adjuster simultaneously can be used for steam turbine load suddenly change or other a large amount of steam are quickly adjusted
Occasion.
Invention content
It is an object of the present invention in view of the above-mentioned problems, a kind of steam fast adjuster and method be proposed, to realize list
When platform Turbo-generator Set transient response is tested, pressure stability, valve is kept to be accurately positioned, governing speed is fast, is steamed in pipeline
Quick, the advantages of accurately controlling of steam flow amount.
To achieve the above object, the technical solution adopted by the present invention is：A kind of steam fast adjuster includes mainly：
Touch screen, PLC controller, servo-driver, servo motor, electric cylinder and regulating valve；
The PLC controller is connected with the touch screen, servo-driver respectively by cable, the servo-driver
It is connected with the servo motor by cable, the servo motor is connected by mechanical keyway with electric cylinder, described electronic
Cylinder is connected by mechanical keyway with the regulating valve.
Further, the touch screen receives the characteristic curve of steam parameter change curve and regulating valve, and is transmitted to institute
State PLC controller.
Further, the steam parameter change curve calculates Steam Turbine by special pipeline flow analysis software and dashes forward
Add, load dump test when obtain.
Further, the regulating valve is driven using servo electric cylinder, and the movement speed time is in 1 second.
Further, described device further includes remote equipment and communication equipment.
Further, the remote equipment is connected by communication equipment with the PLC controller.
Further, a kind of steam quickly regulating method, which is characterized in that include mainly：
Step 1：Steam parameter change curve and adjusting valve characteristic are input in controller；
Step 2：Pilot command, which is sent out, carries out generating set load dump test instruction, by valve position after PLC controller reception
Change curve is changed into high-speed pulse and is transmitted to servo-driver；
Step 3：Servo-driver is parsed according to the umber of pulse of PLC into line program, and exports servomotor stroke, servo electricity
Machine drives electric cylinder and the action of valve calculated curve；
Step 4：Valve opening reaches designated position, and adjustment process terminates, and main steam range parameter is held essentially constant；
Step 5：Pilot command, which is sent out, carries out generating set shock loads test instructions, by valve position after PLC controller reception
Change curve is changed into the output frequency of high-speed pulse, is transmitted to servo driver drives valve event.Main steam range parameter base
Originally it remains unchanged.
The advantageous effects of the present invention：
A kind of steam fast adjuster includes mainly：Touch screen, PLC controller, servo-driver, servo motor, electricity
Dynamic cylinder and regulating valve.Pressure stability is maintained when separate unit Turbo-generator Set transient response is tested, is solved in such experiment
When, steam pressure changes greatly, tests impossible problem, has separate unit Turbo-generator Set and independently carries out impact, dashes forward and unload
The ability of load test.The pattern that valve is driven using servo electric cylinder, realizes being accurately positioned for valve, and governing speed is fast, real
In existing pipeline steam flow it is quick, accurately control, there is great promotion and application value.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of steam fast adjuster of the present invention and the pipeline scheme of installation of method；
Fig. 2 is a kind of steam fast adjuster of the present invention and the schematic diagram of method.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
As shown in Figure 1, when Turbo-generator Set normal assays, bypass is closed, and all steam are by steam into machine pipeline
Into Turbo-generator Set.When load dump test, generating set output power from instantaneously dropping to airport logistic park, unit at full capacity
Steam consumption also instantaneously declines, and steam control valve is opened rapidly at this time so that extra steam is kept by bypassing quickly shunting
Steam can keep stable into machine manifold steam flows, the at this time steam pressure of steam into machine pipeline.When shock loads are tested, hair
Motor group output power instantaneously rises at full capacity from airport logistic park, and unit steam consumption also instantaneously increases, and steam control valve is fast at this time
The closing of speed so that originally unit was returned by bypassing the steam of discharge into machine pipeline, ensureing to stablize into machine steam pressure,
Make stable operation of unit.
As shown in Fig. 2, a kind of steam fast adjuster, includes mainly：Touch screen, PLC controller, servo-driver,
Servo motor, electric cylinder and regulating valve；
The PLC controller is connected with the touch screen, servo-driver respectively by cable, the servo-driver
It is connected with the servo motor by cable, the servo motor is connected by mechanical keyway with electric cylinder, described electronic
Cylinder is connected by mechanical keyway with the regulating valve.
The touch screen receives the characteristic curve of steam parameter change curve and regulating valve, and is transmitted to the PLC controls
Device.
The steam parameter change curve calculates Steam Turbine impact, prominent load removal by special pipeline flow analysis software
It is obtained when experiment.
The regulating valve is driven using servo electric cylinder, and the movement speed time is in 1 second.
Described device further includes remote equipment and communication equipment.
The remote equipment is connected by communication equipment with the PLC controller.
Operation principle：Turbo-generator Set impact, prominent load removal examination are calculated by special pipeline flow analysis software first
The process that steam parameter changes when testing, has obtained steam parameter change curve, and by the curve and the characteristic curve of regulating valve one
It rises by the way that in touch screen input to PLC controller, valve position change curve is calculated automatically according to the curve so that steam passes through
The change procedure for bypassing the quantity of steam sent agrees with the variation of steam consumption quantity during experiment.
A kind of steam quickly regulating method, which is characterized in that include mainly：
Step 1：Steam parameter change curve and adjusting valve characteristic are input in controller；
Step 2：Pilot command, which is sent out, carries out generating set load dump test instruction, by valve position after PLC controller reception
Change curve is changed into high-speed pulse and is transmitted to servo-driver；
Step 3：Servo-driver is parsed according to the umber of pulse of PLC into line program, and exports servomotor stroke, servo electricity
Machine drives electric cylinder and the action of valve calculated curve；
Step 4：Valve opening reaches designated position, and adjustment process terminates, and main steam range parameter is held essentially constant；
Step 5：Pilot command, which is sent out, carries out generating set shock loads test instructions, by valve position after PLC controller reception
Change curve is changed into the output frequency of high-speed pulse, is transmitted to servo driver drives valve event.Main steam range parameter base
Originally it remains unchanged.
This system feature：
1) according to the steam parameter of input, valve parameter calculates valve position curve automatically, and steam valve may be implemented in operating mode
Under the conditions of quick positioning, standard-sized sheet, fully closed time are in 1 second.Valve opening adjusting can control, and controlled and exported by program
Umber of pulse can be accurately controlled valve opening, and valve event speed is controlled by program, is can be fast or slow.
2) valve drives for servo motor, and for relatively electro-hydraulic driving, compressed air-driven, system drives valve mating
No requirement (NR), structure is relatively easy small and exquisite, convenient for arrangement installation.
3) have telecommunications functions, realize and link with load control system, smoothly realize vapour bill machine impact, dash forward and unload examination
Test project.
4) it shows and controls using touch screen, input is convenient, intuitive display.
Following advantageous effect can at least be reached：
A kind of steam fast adjuster includes mainly：Touch screen, PLC controller, servo-driver, servo motor, electricity
Dynamic cylinder and regulating valve.Pressure stability is maintained when separate unit Turbo-generator Set transient response is tested, is solved in such experiment
When, steam pressure changes greatly, tests impossible problem, has separate unit Turbo-generator Set and independently carries out impact, dashes forward and unload
The ability of load test.The pattern that valve is driven using servo electric cylinder, realizes being accurately positioned for valve, and governing speed is fast, real
In existing pipeline steam flow it is quick, accurately control, there is great promotion and application value.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (7)
1. a kind of steam fast adjuster, which is characterized in that include mainly：Touch screen, servo-driver, is watched PLC controller
Take motor, electric cylinder and regulating valve；
The PLC controller is connected with the touch screen, servo-driver respectively by cable, and the servo-driver passes through
Cable is connected with the servo motor, and the servo motor is connected by mechanical keyway with electric cylinder, and the electric cylinder is logical
Mechanical keyway is crossed with the regulating valve to be connected.
2. a kind of steam fast adjuster according to claim 1, which is characterized in that the touch screen receives steam ginseng
The characteristic curve of number change curve and regulating valve, and it is transmitted to the PLC controller.
3. a kind of steam fast adjuster according to claim 2, which is characterized in that the steam parameter change curve
It is obtained when calculating Steam Turbine impact, load dump test by special pipeline flow analysis software.
4. a kind of steam fast adjuster according to claim 3, which is characterized in that the regulating valve is using servo electricity
Dynamic cylinder driving, the movement speed time is in 1 second.
5. a kind of steam fast adjuster according to claim 1, which is characterized in that described device further includes remotely setting
Standby and communication equipment.
6. a kind of steam fast adjuster according to claim 1 or 5, which is characterized in that the remote equipment passes through
Communication equipment is connected with the PLC controller.
7. a kind of steam quickly regulating method, which is characterized in that include mainly：
Step 1：Steam parameter change curve and adjusting valve characteristic are input in controller；
Step 2：Pilot command, which is sent out, carries out generating set load dump test instruction, and PLC controller changes valve position after receiving
Profile changeover is that high-speed pulse is transmitted to servo-driver；
Step 3：Servo-driver is parsed according to the umber of pulse of PLC into line program, and exports servomotor stroke, and servomotor drives
Dynamic electric cylinder and the action of valve calculated curve；
Step 4：Valve opening reaches designated position, and adjustment process terminates, and main steam range parameter is held essentially constant；
Step 5：Pilot command, which is sent out, carries out generating set shock loads test instructions, and PLC controller changes valve position after receiving
Profile changeover is the output frequency of high-speed pulse, is transmitted to servo driver drives valve event.Main steam range parameter is protected substantially
It holds constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810326654.1A CN108507792A (en) | 2018-04-12 | 2018-04-12 | A kind of steam fast adjuster and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810326654.1A CN108507792A (en) | 2018-04-12 | 2018-04-12 | A kind of steam fast adjuster and method |
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| CN108507792A true CN108507792A (en) | 2018-09-07 |
Family
ID=63381958
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810326654.1A Pending CN108507792A (en) | 2018-04-12 | 2018-04-12 | A kind of steam fast adjuster and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810234A (en) * | 2022-04-13 | 2022-07-29 | 中国船舶重工集团公司第七0三研究所无锡分部 | Transient performance test system for steam turbine generator unit |
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| CN101388156A (en) * | 2008-09-23 | 2009-03-18 | 上海电力学院 | Semi-physical emulation platform for steam turbine DEH servo-system |
| CN102588938A (en) * | 2012-02-14 | 2012-07-18 | 西安热工研究院有限公司 | Energy-saving quick power regulating system of thermal generator set and method |
| CN104330260A (en) * | 2014-10-17 | 2015-02-04 | 哈尔滨工业大学 | Turbine sequence valve load abrupt fault diagnosis method based on high control valve switch test |
| CN204485795U (en) * | 2015-03-26 | 2015-07-22 | 史丹利化肥当阳有限公司 | Roller pelletizer remote automatic control device |
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| CN208283074U (en) * | 2018-04-12 | 2018-12-25 | 中国船舶重工集团公司第七O三研究所无锡分部 | A kind of steam fast adjuster |
-
2018
- 2018-04-12 CN CN201810326654.1A patent/CN108507792A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| CN101388156A (en) * | 2008-09-23 | 2009-03-18 | 上海电力学院 | Semi-physical emulation platform for steam turbine DEH servo-system |
| CN102588938A (en) * | 2012-02-14 | 2012-07-18 | 西安热工研究院有限公司 | Energy-saving quick power regulating system of thermal generator set and method |
| CN104330260A (en) * | 2014-10-17 | 2015-02-04 | 哈尔滨工业大学 | Turbine sequence valve load abrupt fault diagnosis method based on high control valve switch test |
| CN204485795U (en) * | 2015-03-26 | 2015-07-22 | 史丹利化肥当阳有限公司 | Roller pelletizer remote automatic control device |
| CN106229021A (en) * | 2016-07-27 | 2016-12-14 | 中广核工程有限公司 | Prevent control system and the control method of nuclear power station main steam line superpressure |
| CN107269909A (en) * | 2017-06-04 | 2017-10-20 | 杨峥雄 | A kind of quickly opening and closing AB valves and control method |
| CN208283074U (en) * | 2018-04-12 | 2018-12-25 | 中国船舶重工集团公司第七O三研究所无锡分部 | A kind of steam fast adjuster |
Non-Patent Citations (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810234A (en) * | 2022-04-13 | 2022-07-29 | 中国船舶重工集团公司第七0三研究所无锡分部 | Transient performance test system for steam turbine generator unit |
| CN114810234B (en) * | 2022-04-13 | 2023-09-29 | 中国船舶重工集团公司第七0三研究所无锡分部 | Transient performance test system for steam turbine generator unit |
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