CN201810537U - Novel compressor guide vane control device - Google Patents
Novel compressor guide vane control device Download PDFInfo
- Publication number
- CN201810537U CN201810537U CN2010205597001U CN201020559700U CN201810537U CN 201810537 U CN201810537 U CN 201810537U CN 2010205597001 U CN2010205597001 U CN 2010205597001U CN 201020559700 U CN201020559700 U CN 201020559700U CN 201810537 U CN201810537 U CN 201810537U
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- China
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- work piece
- positioning work
- feedback
- feedback rod
- guide vane
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Abstract
The utility model discloses a novel compressor guide vane control device, comprising a retainer, a retainer feedback rod and a guide vane position feedback rod. One end of the retainer feedback rod is fixedly connected to the retainer rotating connecting sleeve of the retainer, and a slide groove is arranged on the retainer feedback rod. One end of the guide vane position feedback rod is fixedly connected with a feedback pin, the feedback pin is arranged in the slide groove and movably connected with the slide groove, and the other end of the guide vane position feedback rod is provided with a fastening hole for fixedly connecting a guide vane corner connecting shaft. The novel compressor guide vane control device can be applied to the guide vane control mechanism of a compressor to simplify the control link of the air compressor guide vane mechanism, reduce failure and ensure the long-period running of a compressor unit.
Description
Technical field
The utility model belongs to fluid machinery blower fan control system field, is specifically related to the control gear of a kind of suction port of compressor stator.
Background technique
In recent years, along with the technical development and the progress of every profession and trades such as metallurgy, petrochemical industry, more and more higher to the requirement of power equipment, not only require energy-efficient, reliable performance, can adapt to broad more operating conditions, and require the control system fault-free cycle to grow, be convenient to safeguard.Inlet guide vane control gear as the main constituent elements of compressor seems particularly important.Traditional stator control gear adopts connecting rod to transmit gate positing, the collection and the conversion links of position feed back signal are many, the debugging of positioning control card is complicated, position feedback resistance long-play is prone to the position return difference, cause whole stator control system rate of fault higher, influence system's degree of regulation, control demanding occasion at some, positional deviation also can cause unit surge, unplanned parking.
The stator controlling device traditional approach of air compressor unit is to connect piston type final controlling element (electric actuator) by connecting rod, and the actual aperture that slide wire resistance (or position transducer) feeds back stator is installed in final controlling element inside.In general application, design also can be used like this, but rate of fault is higher.All have stator and guide vane opening to participate under the operating mode of interlocked control at some multistage compressions, each grade inlet, if also adopt traditional control mode, unit will be because the probability of guide vane opening deviation generation unit surges at different levels or non-programmed halt will be very high.
Summary of the invention
The purpose of this utility model is the acquisition mode by optimal design compressor vanes aperture signal, and configuration maturation, perfect control, feedback and regulating system finally form a stator controlling device that cover is stable, control accuracy is high, cost performance is good.This device is used for the position regulation and the control of suction port of compressor stator, realizes the automatic control to compressor air inlet air quantity.
The technical solution of the utility model is:
A kind of new type compressor stator control gear, it comprises positioning work piece, positioning work piece feedback rod and gate positing feedback rod, one end of described positioning work piece feedback rod is fixedly connected on being rotationally connected of positioning work piece and puts, described positioning work piece feedback rod is provided with sliding-groove, one end of described valve feedback rod is fixedly connected with the feedback pin, this feedback pin is located in the described sliding-groove and with sliding-groove and is flexibly connected, and the other end of described gate positing feedback rod is provided with the fixed hole in order to fixedly connected stator corner coupling shaft.
Positioning work piece of the present invention adopts the eccentric Placement to obtain the stator corner displacement from stator corner coupling shaft by gate positing feedback rod and positioning work piece feedback rod, and positioning work piece is directly used in the control of stator corner.
Wherein positioning work piece is preferably intelligent electric valve positioner.Can make the supporting frame of fixed locator according to field position.This supporting frame can be fixed on the stator end cap by support and suspended wall connecting plate.
The utility model is selected for use valve positioner to control a double-acting cylinder of straight journey and is substituted original control system.Wherein the effect of positioning work piece is equivalent to original positioning control card, electromagnetic valve component, and the position feedback function of positioning work piece has possessed the function of position feedback swept resistance in original cylinder, and reliable performance, is not easy to produce positional deviation.
Because pneumatics unit inlet guide vane adopts connecting rod to connect, conventional apparatus makes the corner displacement state of stator can't directly feed back to valve positioner.The utility model adopts the eccentric Placement, be defined as the fulcrum that is rotationally connected of positioning work piece at distance stator corner coupling shaft place, one end of gate positing feedback rod is fixedlyed connected with stator corner coupling shaft, and the other end of gate positing feedback rod flexibly connects by feedback pin and sliding-groove, the stator corner displacement is converted into the feedback corner of positioning work piece feedback rod, makes the positioning work piece perception and control.This device is obtained the corner displacement of stator indirectly from guide vane link, adjust the feedback compressed signal by adjusting side-play amount (be stator corner coupling shaft and positioning work piece are rotationally connected distance between overlapping), realize the linear relationship between control signal and the guide plate aperture, regulate and control guide plate aperture.Be used as position feedback mechanism by linkage mechanism and the two location of valve position feedback bar, both can have guaranteed to install connection reliably, also can satisfy the requirement of control accuracy.
Because stator control gear of the present utility model adopts the eccentric Placement, directly takes out corner displacement from guide vane link, control ratio between stator corner and the feedback angle by designing certain side-play amount, reduce and regulate ratio error.Positioning work piece directly is installed on the connecting plate of customization, realizes the linear relationship between control signal and the guide vane opening, reaches the purpose of control, adjusting guide plate aperture.This device has been simplified the link of air compressor blade control mechanism, the fault of having avoided positioning control card, slide wire resistance and reversing solenoid valve control units such as (contactors) to cause, both improved control accuracy, its stability and reliability have also obtained very big improvement, have guaranteed the long-term operation of compressor bank.
Description of drawings
Fig. 1 is a control system scheme of installation of the present utility model.
Fig. 2 is a gate positing signal I/O structural scheme of mechanism.
Among the figure, 1. double-acting cylinder, 2. cylinder connects base plate, 3. stator 1,4. connecting rod, and 5. stator 2,6. stator end cap, 7. gate positing feedback rod, 8. cantilever connecting plate, 9. support, 10. positioning work piece feedback rod, 11. positioning work pieces, 12. the positioning work piece supporting frame, 13. stator corners output coupling shaft, 14. stator corner coupling shafts, the cover 15. positioning work piece is rotationally connected, 16. feedback pins.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As illustrated in fig. 1 and 2, compressor vanes control gear of the present utility model, mainly comprise positioning work piece 11, positioning work piece feedback rod 10 and gate positing feedback rod 7, positioning work piece 11 bottoms are fixed with positioning work piece supporting frame 12, support 9 one ends are fixedlyed connected with positioning work piece supporting frame 12, the other end is connected with cantilever connecting plate 8, and cantilever connecting plate 8 is fixed on the stator end cap 6.Above-mentioned each fixing device is with positioning work piece 11 fixations.
Positioning work piece 11 is provided with positioning work piece feedback rod 10, and the positioning work piece that the lower end of positioning work piece feedback rod 10 is fixedly connected on positioning work piece 11 is rotationally connected on the cover 15.Positioning work piece feedback rod 10 is provided with the long strip sliding-groove.One end of gate positing feedback rod 7 is fixedly connected with feedback pin 16, flexibly connect in the sliding-groove that this feedback pin 16 is located on the positioning work piece feedback rod 10 and with sliding-groove, the other end of gate positing feedback rod 7 is provided with fixed hole, is fixedly connected on the stator corner coupling shaft 14 by this fixed hole this end with gate positing feedback rod 7.
The signal I/O mode of this device is seen Fig. 2, and the displacement state of stator shows by the form of the gate positing feedback rod 7 on the stator corner coupling shaft 14 with the stator rotational angle theta.Drive positioning work piece feedback rod 10 by feedback pin 16 when gate positing feedback rod 7 rotates and rotate, thereby produce positioning work piece feedback angle α, positioning work piece feedback angle α feeds back to positioning work piece 11.This mode obtains the corner displacement of stator indirectly from guide vane link 4, by adjust side-play amount L(be stator corner coupling shaft 14 and positioning work piece be rotationally connected overlap distance between 15) adjust the feedback compressed signal, realize the linear relationship between control signal and the guide plate aperture, regulate and control guide plate aperture.
Fig. 1 is seen in the application of this device on compressor.This stator control gear is applied in the guide vane opening of the centrifugal air compressor group of SIEMENS steam turbine driving and controls, and double-acting cylinder 1 is fixed on cylinder and connects on the base plate 2.Air compressor adopts the level Four compression, at each grade inlet stator 3 controls air inflow at different levels is arranged all.Wherein one, three grade and two, level Four respectively are one group, connect by connecting rod respectively and realize interlock.In order to guarantee the equilibrium of air inflows at different levels, interlock system has been set 5% and 10% gate positing deviation alarm and interlocking stopping signal.The other end of connecting rod also is a stator 5.The positioning work piece of this device adopts SIEMENS SIPART PS2 intelligent positioner, and the fixed hole of the gate positing feedback rod 7 of this device is fixedly connected on the stator corner coupling shaft 14 of stator 5, by the air inflows at different levels of device control air compressor of the present utility model.
Claims (3)
1. new type compressor stator control gear, it is characterized in that comprising positioning work piece, positioning work piece feedback rod and gate positing feedback rod, one end of described positioning work piece feedback rod is fixedly connected on positioning work piece and is rotationally connected and puts, described positioning work piece feedback rod is provided with sliding-groove, one end of described gate positing feedback rod is fixedly connected with the feedback pin, this feedback pin is located in the described sliding-groove and with sliding-groove and is flexibly connected, and the other end of described gate positing feedback rod is provided with the fixed hole in order to fixedly connected stator corner coupling shaft.
2. new type compressor stator control gear according to claim 1 is characterized in that described positioning work piece adopts the eccentric Placement to obtain the stator corner displacement from stator corner coupling shaft by gate positing feedback rod and positioning work piece feedback rod.
3. new type compressor stator control gear according to claim 1 is characterized in that also being provided with on the described positioning work piece supporting frame of fixed locator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205597001U CN201810537U (en) | 2010-10-13 | 2010-10-13 | Novel compressor guide vane control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205597001U CN201810537U (en) | 2010-10-13 | 2010-10-13 | Novel compressor guide vane control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810537U true CN201810537U (en) | 2011-04-27 |
Family
ID=43893479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205597001U Expired - Lifetime CN201810537U (en) | 2010-10-13 | 2010-10-13 | Novel compressor guide vane control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810537U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184999A (en) * | 2013-03-12 | 2013-07-03 | 河北钢铁股份有限公司邯郸分公司 | Limiting critical point positioning method for guide vane executing mechanism of compressor |
| CN103557173A (en) * | 2013-10-21 | 2014-02-05 | 江苏永钢集团有限公司 | Guide vane control device for air compressor |
-
2010
- 2010-10-13 CN CN2010205597001U patent/CN201810537U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184999A (en) * | 2013-03-12 | 2013-07-03 | 河北钢铁股份有限公司邯郸分公司 | Limiting critical point positioning method for guide vane executing mechanism of compressor |
| CN103184999B (en) * | 2013-03-12 | 2015-06-10 | 河北钢铁股份有限公司邯郸分公司 | Limiting critical point positioning method for guide vane executing mechanism of compressor |
| CN103557173A (en) * | 2013-10-21 | 2014-02-05 | 江苏永钢集团有限公司 | Guide vane control device for air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |
|
| CX01 | Expiry of patent term |