CN2501019Y - Gland sealing height measurer for turbine - Google Patents
Gland sealing height measurer for turbine Download PDFInfo
- Publication number
- CN2501019Y CN2501019Y CN 01252277 CN01252277U CN2501019Y CN 2501019 Y CN2501019 Y CN 2501019Y CN 01252277 CN01252277 CN 01252277 CN 01252277 U CN01252277 U CN 01252277U CN 2501019 Y CN2501019 Y CN 2501019Y
- Authority
- CN
- China
- Prior art keywords
- leg
- utility
- model
- measurement
- adjustable
- 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
Links
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A steam turbine vapor seal height measurement device comprises a dial indicator. The utility model is characterized in that a cross arm is penetrated and arranged on a meter bracket location rod which is under the dial indicator, a location support device which is consisted by an adjustable measurement leg and a vertical location leg is separately installed at both ends of the cross arm, and the location support device is capable of moving along the cross arm. The utility model provides the advantages of reasonable structure, convenient operation, and high working efficiency. Moreover, the utility model does not need to hoist the rotor of steam turbine repeatedly. And the utility model also provides online measurement which can realize that the measurement and the adjustment are synchronously executed until qualified. Thus, the measurement workload is small (compared to traditional way, the construction period can be cut down to one half) and the precision is high (the precision reaches 0.01 mm). When the machine set with out dummy spindle needs to be over hauled, the utility model can be used for measuring two working procedures. They are the center of a clapboard concave nest and the vapor seal gap. The utility model is capable of being used in vapor seal blocks of machine sets with different capacities and different sizes. Therefore, the utility model provides a good commonality.
Description
(1) technical field
The utility model relates to a kind of measurement mechanism, especially a kind of turbine steam seal height measuring gauge of measuring Gland Clearance in Steam Turbine that is applicable to.
(2) background technology
The measurement of packing radial play, adjustment are to be the very big again work of a more complicated, workload (generally needing 5-7 days) in the turbine body service work.Because the steam loss of turbine shaft seal, packing is directly proportional with axle envelope, labyrinth clearance, so the packing radial play is measured and the quality of the work of adjustment, directly influence the thermal efficiency of steam turbine, the gap is too small, the mill that bumps easily in service.Excesssive gap not only makes generatine set heat efficiency descend, and also can cause the steam turbine oil mixed with water, threatens unit safety operation.In the Gland Clearance in Steam Turbine testing process, because turbine steam seal compact conformation, and it is less with turbine rotor and moving vane gap, cause the clearance measurement difficulty of dividing plate recess center and packing, traditional method is with the gap between dummy shaft, false dish imitation rotor and the gland blocks, measures with clearance gauge.The measuring method of subsides medical proof fabric commonly used then is to be used in to paste medical proof fabric (every layer of about 0.25mm of medical proof fabric between gland blocks and the rotor, the number of plies of pasting is decided with gap length), on rotor, coat red lead powder (maintenance pigment), the moving rotor of dish hangs out rotor after a few, (for example: it is that the gap is about 0.25mm that one deck does not gall to the worn-off situation of observation medical proof fabric, two-layer the worn-off is that the gap is about 0.50mm, and the like), thereby draw the big probable value of labyrinth clearance.The shortcoming of two kinds of methods is that measuring error is big, and duplication of labour workload is big, and at the bottom of the work efficiency, operating personnel's experience has considerable influence to the measured value in gap.So, along with the capacity of Turbo-generator Set constantly increases, requirement to the maintenance precision of steam turbine unit is more and more higher, the quality that dividing plate recess center and labyrinth clearance are adjusted, efficient and security to Steam Turbine all have considerable influence, and the raising of work efficiency can improve the economic benefit of Steam Turbine overhaul greatly.Therefore,, need a kind of measuring method easily and efficiently and survey instrument, thereby reach the purpose of increasing work efficiency with measuring accuracy in order to improve packing surveying work efficient and measuring accuracy.
(3) summary of the invention
The purpose of this utility model just at existing problem in the above-mentioned prior art and custom-designed a kind of rational in infrastructure, easy and simple to handle, the surveying work amount is little, the turbine steam seal height measuring gauge of high efficiency.
The purpose of this utility model realizes by following scheme: this turbine steam seal height measuring gauge comprises dial gauge, wherein: on the dial framework backstay that is positioned at below the dial gauge, be coated with a transverse arm, one device for positioning and supporting of being made up of adjustable measurement leg and perpendicular positioning leg respectively is installed at the two ends of transverse arm, and device for positioning and supporting can be along the transverse arm displacement.
In the utility model, the device for positioning and supporting of being made up of adjustable measurement leg and perpendicular positioning leg, and combines it by adjusting dog screw in the slide rail on adjustable measurement leg top is installed in chute on the transverse arm by processing; The perpendicular positioning leg is sleeved on the adjustable measurement leg by the T shape sliding sleeve that processes on it, and by trip bolt and the stage clip that is located in the adjustable measurement leg conduit both is combined, and the vertical survey leg under external force can adjustable relatively measurement leg upper and lower translation.
The lower end of described dial gauge sounding rod is equipped with one and measures pin, and bottom surface and the sounding rod of measuring pin are perpendicular, and its effect is that the lower end of sounding rod is contacted with measured parts reliably, and accurately measures the maximum height value of packing module (or gland blocks); Be equipped with in the lower end of two adjustable measurement legs bend inwards and the card base vertical with measuring leg so that the measure portion width greater than the gland blocks of spacer width.
Measuring principle of the present utility model is: utilize on the measurement module the plastic yield of deposited silica gel (or soap-cake), fill partition groove and gap between rotor.Utilize the packing height measuring gauge to measure the precise information of distance between partition groove and the rotor then, deduct labyrinth clearance specified standard value range, can draw the critical field value of packing height control.Utilize the packing height measuring gauge one by one each gland blocks of on-line measurement at the height value of actual installation position, just can draw gland blocks at the gap width of actual installation position and rotor whether in critical field, and adjust according to these data.
Its concrete measuring method and step are as follows:
(1) the packing measurement module of packing in the measurement point position that the packing groove is determined applies silica gel (or soap-cake), puts into turbine rotor, and the moving several circles of dish hang out rotor.
(2) measure module height (being the radial distance between rotor and the packing groove) with this turbine steam seal height measuring gauge, with each the data list record that records.Draw packing height critical field value by calculating (module height-labyrinth clearance critical field value=packing height critical field value).
(3) take out the packing measurement module,, go out each gland blocks height (being the radial distance between gland sealing gear top and the packing groove) with the on-line measurement of this turbine steam seal height measuring gauge, equally list records by the actual installation position gland blocks of packing into.
(4) with the gland blocks height surveyed and packing height critical field value relatively, adjust the gland blocks height according to comparative result, until the gland blocks height in packing height critical field value, and record final data.
Advantage of the present utility model is: rational in infrastructure, easy and simple to handle, high efficiency, not needing to lift repeatedly turbine rotor measures, and on-line measurement, with surveying with accent, till qualified, surveying work amount little (can shorten 1/2nd than the classic method duration), precision height (precision can reach 0.01mm).To not being equipped with the major overhaul of dummy shaft, can adopt this measurement mechanism to measure dividing plate recess center and labyrinth clearance two procedures.This measurement mechanism is applicable to the gland blocks of different capabilities unit different size, highly versatile.
(4) description of drawings
Fig. 1 is an axonometric drawing of the present utility model.
Fig. 2 is an assembling synoptic diagram of the present utility model.
Device for positioning and supporting was positioned at the synoptic diagram on the partition board of steam turbine when Fig. 3 measured for the utility model.
The position cut-open view of used packing module in partition board of steam turbine T-slot when Fig. 4 measures for the utility model.
The axonometric drawing of used module locating rack when Fig. 5 is measurement.
Fig. 6 is the axonometric drawing of gland blocks.
Among the figure: 1 is dial gauge, and 2 for adjusting dog screw, and 3 is transverse arm, and 4 is the dial gauge gib screw,
5 is stage clip, and 6 is the perpendicular positioning leg, and 7 is the stage clip trip bolt, and 8 is adjustable measurement leg,
9 is card base, and 10 for measuring pin, and 11 is the dial gauge sounding rod, and 12 is the module locating rack,
13 is dividing plate, and 14 is measurement module (silica gel or soap-cake), and 15 is gland blocks,
16 is the dial framework backstay.
(5) embodiment
The utility model is described further each parts relationship below in conjunction with accompanying drawing:
As shown in Figure 1, 2: dial gauge 1 passes the center pit of transverse arm 3, utilizes dial gauge gib screw 4 vertically to be fastened on the transverse arm 3, but dial gauge sounding rod 11 phase his-and-hers watches bodies and the upper and lower vertical moving of transverse arm.Measuring pin 10 utilizes holding screw to be vertically fixed on the end of dial gauge sounding rod 11.Stage clip 5 is fitted in the rectangular conduit of adjustable measurement leg 8 central upper portion.Perpendicular positioning leg 6 is sleeved on the adjustable measurement leg 8 by the T shape sliding sleeve that processes on it, and stage clip 5 withstands on the spacing place of convex shoulder, adjustable measurement leg bottom by stage clip trip bolt 7 with perpendicular positioning leg 6.Thereby perpendicular positioning leg 6 compressible stage clip 5 under the effect of external force make the adjustable relatively measurement leg 8 of perpendicular positioning leg 6 upwards parallel, no spacious moving, do not have and reverse slippage, perpendicular positioning leg 6 can guarantee that adjustable measurement leg is perpendicular with the point position of dividing plate recess all the time when measuring.Two adjustable measurement legs 8 can vertically be packed in two rectangle chutes of transverse arm 3 by the rectangle convex shoulder on top, and can be in chute do not have and reverse, horizontally slip perpendicular to transverse arm, during measurement, after position, the left and right sides is determined, can utilize adjustment dog screw 2 that it vertically is fastened on the transverse arm 3.
Shown in Fig. 4,5: there is a tapped through hole at the center of module locating rack 12, in adorn a location holding screw, respectively there are two convex shoulders both sides, module locating rack 12 bottom, in the T type groove of dividing plate 13 recesses of the different-diameter size that can guarantee to pack into easily.Module locating rack 12 in the dividing plate recess T type of packing into the groove can be fastened on optional position in the dividing plate recess by the location holding screw.Flute profile plane on the module locating piece 12 can guarantee to inlay superjacent module 14 (silica gel or soap-cake) after turbine rotor is pressed into and rotates, and is unlikely to come off.
Its using method is:
A. zeroing
Before the measurement, pinch the middle part of packing height measuring gauge transverse arm, make and measure pin 10, adjustable measurement leg 8, perpendicular positioning leg 6 bottoms and be against on the flat board, rotate the dial gauge dial plate by hand, the dial gauge large needle is transferred to zero-bit, and writes down the reading of little pin with a hand.
B. measure
According to packing module (or gland blocks) width, a left side, two adjustable measurement legs 8 of packing height arm control move right, make two adjustable measurement legs can be stuck in the two ends of packing module 14 (or gland blocks 15), the top that hand is being pinched the dial gauge sounding rod is with dial gauge sounding rod 11 and measure pin 10 and mention gently, a hand is being pinched the middle part of packing height measuring gauge transverse arm, the packing height measuring gauge is stuck in packing module 14 (or gland blocks 15) two ends, adjustable measurement leg 8 is all contacted with dividing plate 13 recesses surface with perpendicular positioning leg 6 bottoms, put down the dial gauge sounding rod 11 of mentioning gently, measurement pin 10 is contacted with packing module 14 (or gland blocks 15) top, can read height number from the dial plate of dial gauge.
Claims (5)
1, a kind of turbine steam seal height measuring gauge, it comprises dial gauge (1), it is characterized in that: on the dial framework backstay (16) that is positioned at below the dial gauge, be coated with a transverse arm (3), one device for positioning and supporting of being made up of adjustable measurement leg (8) and perpendicular positioning leg (6) respectively is installed at the two ends of transverse arm, and device for positioning and supporting can be along transverse arm (3) displacement.
2, turbine steam seal height measuring gauge according to claim 1, it is characterized in that: device for positioning and supporting, and combines it by adjustment dog screw (2) in the slide rail on adjustable measurement leg (8) top is installed in chute on the transverse arm (3) by processing.
3, turbine steam seal height measuring gauge according to claim 1, it is characterized in that: perpendicular positioning leg (6) is sleeved on the adjustable measurement leg (8) by the T shape sliding sleeve that processes on it, and by trip bolt (7) and the stage clip (5) that is located in the adjustable measurement leg conduit both are combined, and vertical survey leg (6) under external force can adjustable relatively measurement leg (8) upper and lower translation.
4, turbine steam seal height measuring gauge according to claim 1 is characterized in that: be equipped with one in the lower end of dial gauge sounding rod (11) and measure pin (10), bottom surface and the sounding rod (11) of measuring pin (10) are perpendicular.
5, according to claim 1 or 2 or 3 described turbine steam seal height measuring gauges, it is characterized in that: be provided with in the lower end of adjustable measurement leg (8) bend inwards and with measure the vertical card base (9) of leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01252277 CN2501019Y (en) | 2001-10-28 | 2001-10-28 | Gland sealing height measurer for turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01252277 CN2501019Y (en) | 2001-10-28 | 2001-10-28 | Gland sealing height measurer for turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2501019Y true CN2501019Y (en) | 2002-07-17 |
Family
ID=33662027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01252277 Expired - Fee Related CN2501019Y (en) | 2001-10-28 | 2001-10-28 | Gland sealing height measurer for turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2501019Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294400C (en) * | 2005-04-29 | 2007-01-10 | 绵阳新晨动力机械有限公司 | Device for testing compression height of cylinder body |
| CN102206868A (en) * | 2011-04-13 | 2011-10-05 | 常州市天龙光电设备有限公司 | Method for determining height of water-guiding plate |
| CN102519684A (en) * | 2011-11-30 | 2012-06-27 | 东方电气集团东方汽轮机有限公司 | Dynamic sealing test device and sealing clearance adjustment method |
| CN102814633A (en) * | 2011-11-30 | 2012-12-12 | 凯迈(洛阳)机电有限公司 | Method for adjusting air gap of rotor of disc type electrical eddy current dynamometer |
| CN105043202A (en) * | 2015-05-14 | 2015-11-11 | 湖州市特种设备检测研究院 | Elevator driving sheave groove rapid measurement apparatus |
| CN105066844A (en) * | 2015-05-14 | 2015-11-18 | 湖州市特种设备检测研究院 | Plug gauge type measuring device for elevator traction wheel |
| CN106568366A (en) * | 2016-11-02 | 2017-04-19 | 广西防城港核电有限公司 | Steam turbine journal jacking height measuring device |
| CN109470114A (en) * | 2018-12-10 | 2019-03-15 | 陕西航空电气有限责任公司 | A kind of bearing chamber end face and seam allowance face size determine tool and method |
| CN111397888A (en) * | 2020-04-30 | 2020-07-10 | 庆安集团有限公司 | Rotation detection device and detection method for magnetic suspension centrifugal compressor |
-
2001
- 2001-10-28 CN CN 01252277 patent/CN2501019Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294400C (en) * | 2005-04-29 | 2007-01-10 | 绵阳新晨动力机械有限公司 | Device for testing compression height of cylinder body |
| CN102206868A (en) * | 2011-04-13 | 2011-10-05 | 常州市天龙光电设备有限公司 | Method for determining height of water-guiding plate |
| CN102519684A (en) * | 2011-11-30 | 2012-06-27 | 东方电气集团东方汽轮机有限公司 | Dynamic sealing test device and sealing clearance adjustment method |
| CN102814633A (en) * | 2011-11-30 | 2012-12-12 | 凯迈(洛阳)机电有限公司 | Method for adjusting air gap of rotor of disc type electrical eddy current dynamometer |
| CN102814633B (en) * | 2011-11-30 | 2014-12-10 | 凯迈(洛阳)机电有限公司 | Method for adjusting air gap of rotor of disc type electrical eddy current dynamometer |
| CN105043202A (en) * | 2015-05-14 | 2015-11-11 | 湖州市特种设备检测研究院 | Elevator driving sheave groove rapid measurement apparatus |
| CN105066844A (en) * | 2015-05-14 | 2015-11-18 | 湖州市特种设备检测研究院 | Plug gauge type measuring device for elevator traction wheel |
| CN106568366A (en) * | 2016-11-02 | 2017-04-19 | 广西防城港核电有限公司 | Steam turbine journal jacking height measuring device |
| CN109470114A (en) * | 2018-12-10 | 2019-03-15 | 陕西航空电气有限责任公司 | A kind of bearing chamber end face and seam allowance face size determine tool and method |
| CN111397888A (en) * | 2020-04-30 | 2020-07-10 | 庆安集团有限公司 | Rotation detection device and detection method for magnetic suspension centrifugal compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105865714B (en) | A kind of rotor unbalance measurement apparatus based on grating scale feedback signal | |
| CN106482693B (en) | A kind of gauge head unit and its method of adjustment improving gears tooth pitch measurement accuracy | |
| CN2501019Y (en) | Gland sealing height measurer for turbine | |
| CN205898448U (en) | Line gear transmission test bench | |
| CN105928447B (en) | A kind of rapid survey deflection of bridge span device | |
| CN202947833U (en) | Counterweight regulating device and automatic pressure calibration bench | |
| CN106989712B (en) | A kind of high-precision Self-resetting probe-type displacement measuring device and measuring method | |
| CN101571442A (en) | Calibration method for six-dimension force sensor calibration device with medium measurement range | |
| CN103217252A (en) | Movable container type high-precision micro-pressure detection device | |
| CN2709096Y (en) | Numerical controlled machine tool knife setting instrument | |
| CN200950052Y (en) | Forgeable piece error displacement detecting instrument | |
| CN200947079Y (en) | Vertical tow linear density tester | |
| CN210221025U (en) | High-precision bar runout measuring instrument | |
| CN202092622U (en) | Height measuring device of claw pole boss | |
| CN202661035U (en) | Valve body diameter measuring device | |
| CN206131940U (en) | Pneumatic cylinder displacement sensor high precision displacement test platform | |
| CN102494600A (en) | Multidimension measuring apparatus of high speed processing handle | |
| CN208537067U (en) | A kind of high rigidity two dimension force measuring sensors | |
| CN206019591U (en) | A kind of grating sensor caliberating device | |
| CN104534963B (en) | A kind of serial multiple dimensioned square rock structural face friction angle measurement device and method | |
| CN206756127U (en) | A kind of high-precision Self-resetting probe-type displacement measuring device | |
| CN217637153U (en) | Detection apparatus for brake casing depth of parallelism and axiality under helicopter main reducing gear | |
| CN210981105U (en) | Rock sample basic parameter measuring device | |
| CN113600267B (en) | Crushing device and crushing method for measuring firmness coefficient of coal | |
| CN201251421Y (en) | Pipe thickness measurement cramping apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |