CN206670530U - Through-flow gap of steam turbine test measuring device - Google Patents
Through-flow gap of steam turbine test measuring device Download PDFInfo
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- CN206670530U CN206670530U CN201720502037.3U CN201720502037U CN206670530U CN 206670530 U CN206670530 U CN 206670530U CN 201720502037 U CN201720502037 U CN 201720502037U CN 206670530 U CN206670530 U CN 206670530U
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- flow gap
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- steam turbine
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Abstract
Through-flow gap of steam turbine test measuring device, the measurer of detection through-flow gap of steam turbine is the utility model is related to, it is not high in order to solve the problems, such as the accuracy of existing detection through-flow gap of steam turbine.The through-flow gap of steam turbine test measuring device is by measurer body, handle and measurement tooth composition, it is in concave shape to measure specific body plate face, the projection of shoulder is projection body at left and right sides of measurer body, handle is provided with perpendicular to specific body plate face is measured, measurement tooth is provided with specific bottom face is measured, the measuring surface for measuring tooth is vertical with measuring specific bottom face.The body plate face of the utility model through-flow gap test measuring device carries out bilateral positioning in concave shape, increase positioning face thickness, makes accurate positioning, improves detection accuracy, the handle of setting is easy to the through-flow gap test measuring device stretching into cylinder and rotor intermediate gap.
Description
Technical field
It the utility model is related to the measurer of detection through-flow gap of steam turbine.
Background technology
Before steam turbine assembling, to determine that axial flow size is that labyrinth casing gland sealing gear closes with rotor gland sealing gear relative position
System, need to first carry out through-flow gap detection.By comparing measuring of radial gap in flow passage value and Theoretical Design value, each gland sealing gear of labyrinth casing is entered
Row amendment, so as to realize the control to through-flow gap.Due to measuring between rotor and cylinder, measurement space is narrow, causes
Operator and inspector can not measure most accurate numerical value when in use, to meet the guarantee of precision and practicality, it is necessary to design
New through-flow gap test measuring device.
Utility model content
The purpose of this utility model be in order to solve the problems, such as it is existing detection through-flow gap of steam turbine accuracy it is not high, and
A kind of through-flow gap of steam turbine test measuring device is provided.
The utility model through-flow gap of steam turbine test measuring device measures specific body by measurer body, handle and measurement tooth composition
Plate face is in concave shape, and the projection of measurer body left and right sides shoulder is projection body, and handle is provided with perpendicular to specific body plate face is measured,
Measurement tooth is provided with specific bottom face is measured, the measuring surface for measuring tooth is vertical with measuring specific bottom face.
Through-flow gap test measuring device is the survey for detecting axial gap between turbine rotor gland sealing gear and labyrinth casing packing
Amount instrument.Each packing teeth size of labyrinth casing is determined by measured value and Theoretical Design value, so as to realize the control to through-flow gap
System.
The body plate face of the utility model through-flow gap of steam turbine test measuring device is in concave shape, in application process, throughput
Bilateral positioning is carried out in the sealing gland ring recess of the projection body insertion steam turbine of specific left and right sides shoulder, increase locating surface is thick
Degree, make accurate positioning, improve detection accuracy.Handle is provided with specific body plate face is measured, is avoided in measurement, it is difficult to will
Hand stretches into the problem of cylinder is with rotor intermediate gap.
The utility model is by improving through-flow gap test measuring device, with this measurer energy accurate measurement steam turbine axial flow
Gap, reduce the measurement error caused by detecting instrument reason.
Brief description of the drawings
Fig. 1 is the subssembly drawing of steam seal ring in steam turbine；
Fig. 2 is the main structure diagram of the utility model through-flow gap of steam turbine test measuring device；
Fig. 3 is the side structure schematic view of the utility model through-flow gap of steam turbine test measuring device；
Fig. 4 is the schematic diagram detected using through-flow gap of steam turbine test measuring device.
Embodiment
Embodiment one：Present embodiment through-flow gap of steam turbine test measuring device is by measurer body 1, handle 2 and measurement
Tooth 3 forms, and the body plate face of measurer body 1 is in concave shape, and the projection of the left and right sides shoulder of measurer body 1 is projection body 1-1, perpendicular to amount
Specific 1 body plate face is provided with handle 2, and measurement tooth 3 is provided with the bottom face of measurer body 1, measures the measuring surface and amount of tooth 3
Specific 1 bottom face is vertical.
Embodiment two：Present embodiment is from the upper surface C of projection body 1-1 unlike embodiment one
Arc surface.
The upper surface of present embodiment projection body is arc surface, can both avoid with cylinder interfere, can also auxiliary positioning, ensure
Reliability of positioning.
Embodiment three：Present embodiment handle 2 unlike embodiment one or two is cylinder.
Embodiment four：The shape of tooth 3 is measured unlike one of present embodiment and embodiment one to three
Shape is right angled triangle.
Embodiment five：The bottom of measurer body 1 unlike one of present embodiment and embodiment one to four
Portion is bullet.
Present embodiment carries out chamfering in order to reduce due to influence of the gauge head thickness to measurement result, by measurement tooth, reduces
Measure contact area.In order to avoid interfering, measurer body lower half forms the conical surface.
Embodiment six：The survey of tooth 3 is measured unlike one of present embodiment and embodiment one to five
Amount face is highly 6~10mm.
Embodiment seven：The thickness of measurer body 1 unlike one of present embodiment and embodiment one to six
Spend for 30mm.
Embodiment：The present embodiment through-flow gap of steam turbine test measuring device is made up of measurer body 1, handle 2 and measurement tooth 3, is measured
Specific 1 body plate face is in concave shape, and the projection of the left and right sides shoulder of measurer body 1 is projection body 1-1, projection body 1-1 upper surface C
For arc surface, the body plate face perpendicular to measurer body 1 is provided with cylindrical handle 2, measurement is provided with the bottom face of measurer body 1
Tooth 3, measurement tooth 3 are shaped as right angled triangle, and the measuring surface for measuring tooth 3 is vertical with the bottom face of measurer body 1.
The width of the present embodiment measurer body 1 is 122mm, and the whole height of through-flow gap of steam turbine detection limit is 60mm, convex
Block 1-1 height H is 12.5mm, and the measuring surface of measurement tooth 3 is highly 8mm.
The present embodiment through-flow gap test measuring device is to be used to detect between turbine rotor gland sealing gear and labyrinth casing packing axially
The survey tool in gap, that is, it is used to measure the A sizes in Fig. 1, each vapour of labyrinth casing is determined by comparing A values with Theoretical Design value
Teeth size is sealed, so as to realize the control to through-flow gap, 10 represent cylinder in figure, and 11 represent steam seal ring, and 12 represent labyrinth casing, and 13
Represent rotor.When being detected using the through-flow gap test measuring device, measurer body is placed between cylinder and rotor by hand-held handle,
In steam seal ring groove at left and right sides of measurer body on the projection body insertion cylinder of shoulder, side wall and the survey of measurement tooth 3 in projection body
The horizontal range (B values in figure) in amount face is relevant with choosing the number of teeth in labyrinth casing, therefore should illustrate that B values are corresponding with labyrinth casing in measurer
Number of teeth position, such as：Measure n-th of front end of m row packings long tooth position.
A values are measured using through-flow gap test measuring device, are positioned with test measuring device left side, C is auxiliary locating surface, is led to
Cross and compare A values with Theoretical Design value to determine each packing teeth size of labyrinth casing, so as to realize the control to through-flow gap.
The present embodiment realizes measurement conveniently, accurately, enhances practicality and accuracy by improving test measuring device.
Claims (7)
1. through-flow gap of steam turbine test measuring device, it is characterised in that the through-flow gap of steam turbine test measuring device is by measurer body (1), hand
Handle (2) and measurement tooth (3) composition, the body plate face of measurer body (1) is in concave shape, and the projection of measurer body (1) left and right sides shoulder is
Projection body (1-1), the body plate face of measurer body (1) is provided with handle (2), is provided with the bottom face of measurer body (1)
Tooth (3) is measured, the measuring surface of measurement tooth (3) is vertical with the bottom face of measurer body (1).
2. through-flow gap of steam turbine test measuring device according to claim 1, it is characterised in that the upper surface of projection body (1-1)
(C) it is arc surface.
3. through-flow gap of steam turbine test measuring device according to claim 1, it is characterised in that handle (2) is cylinder.
4. through-flow gap of steam turbine test measuring device according to claim 1, it is characterised in that being shaped as measurement tooth (3) is straight
Angle triangle.
5. through-flow gap of steam turbine test measuring device according to claim 1, it is characterised in that the bottom of measurer body (1) is cone
Body.
6. through-flow gap of steam turbine test measuring device according to claim 1, it is characterised in that the measuring surface of measurement tooth (3) is high
Spend for 6~10mm.
7. through-flow gap of steam turbine test measuring device according to claim 1, it is characterised in that the thickness of measurer body (1) is
30mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720502037.3U CN206670530U (en) | 2017-05-08 | 2017-05-08 | Through-flow gap of steam turbine test measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720502037.3U CN206670530U (en) | 2017-05-08 | 2017-05-08 | Through-flow gap of steam turbine test measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206670530U true CN206670530U (en) | 2017-11-24 |
Family
ID=60371674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720502037.3U Active CN206670530U (en) | 2017-05-08 | 2017-05-08 | Through-flow gap of steam turbine test measuring device |
Country Status (1)
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| CN (1) | CN206670530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286921A (en) * | 2017-12-22 | 2018-07-17 | 东方电气集团东方汽轮机有限公司 | A kind of detection instrument of steam turbine entirety shipping module |
-
2017
- 2017-05-08 CN CN201720502037.3U patent/CN206670530U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286921A (en) * | 2017-12-22 | 2018-07-17 | 东方电气集团东方汽轮机有限公司 | A kind of detection instrument of steam turbine entirety shipping module |
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