CN204640138U - The replacing frock of turbine steam seal flat spring - Google Patents
The replacing frock of turbine steam seal flat spring Download PDFInfo
- Publication number
- CN204640138U CN204640138U CN201520162156.XU CN201520162156U CN204640138U CN 204640138 U CN204640138 U CN 204640138U CN 201520162156 U CN201520162156 U CN 201520162156U CN 204640138 U CN204640138 U CN 204640138U
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- CN
- China
- Prior art keywords
- pressing plate
- arc
- frock
- width
- labyrinth strip
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- 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
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Abstract
The utility model discloses a kind of replacing frock of turbine steam seal flat spring, this frock comprises arc, connecting plate, pressing plate and clamping screw, described arc and pressing plate interval are arranged, described connecting plate is located at the same side of described arc and pressing plate and vertical arc plate, described pressing plate has screw, and described clamping screw is twisted in the screw of described pressing plate.This frock can be accurate, easy the labyrinth strip that makes be installed in labyrinth strip draw-in groove, improve the phenomenon that in former maintenance craft, spring easily misplaces, simplify installation process, improve upkeep operation efficiency.
Description
Technical field
The utility model relates to a kind of replacing frock of turbine steam seal flat spring.
Background technology
Steam turbine is a kind of is power with steam, and is the rotating machinery of mechanical power by the thermal energy of steam, is most widely used prime mover in modern thermal power plant.In steam turbine operation process, steam turbine seepage and cylinder deformation are plant issues the most common, and the tightness of cylinder faying face directly affects the safety and economic operation of unit.Wherein packing is the sealing device in order to prevent steam leakage and air from bleeding.As depicted in figs. 1 and 2, packing is made up of labyrinth strip body 1 and spring 2, spring 2 is located at the bottom surface of labyrinth strip body 1 and is matched in clearance, the end face of labyrinth strip body 1 and bottom surface are arcwall face, it is arranged on steam turbine cylinder, install 3 steamer sheet bodies in each cylinder body draw-in groove, wherein spring plays the effect regulating gap.When changing labyrinth strip operation, what former maintenance craft adopted is first by spring fitting in cylinder body draw-in groove, then labyrinth strip body is slipped into draw-in groove, because the gap between draw-in groove and labyrinth strip is little, therefore in installation process, the problem of easy generation spring dislocation or distortion, requires a great deal of time to adjust thus, the serious efficiency reducing upkeep operation.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of replacing frock of turbine steam seal flat spring, this frock can be accurate, easy the labyrinth strip that makes be installed in labyrinth strip draw-in groove, improve the phenomenon that in former maintenance craft, spring easily misplaces, simplify installation process, improve upkeep operation efficiency.
For solving the problems of the technologies described above, the replacing frock of the utility model turbine steam seal flat spring comprises arc, connecting plate, pressing plate and clamping screw, described arc and pressing plate interval are arranged, described connecting plate is located at the same side of described arc and pressing plate and vertical arc plate, described pressing plate has screw, and described clamping screw is twisted in the screw of described pressing plate.
Further, the width of described arc is less than the width of labyrinth strip bottom surface, and the width of described pressing plate is less than the width of labyrinth strip end face.
Further, the width of described arc is less than labyrinth strip bottom width 10mm, and the width of described pressing plate is less than labyrinth strip end face width 10mm.
Because the replacing frock of the utility model turbine steam seal flat spring have employed technique scheme, namely this frock comprises arc, connecting plate, pressing plate and clamping screw, described arc and pressing plate interval are arranged, described connecting plate is located at the same side of described arc and pressing plate and vertical arc plate, described pressing plate has screw, and described clamping screw is twisted in the screw of described pressing plate.This frock can be accurate, easy the labyrinth strip that makes be installed in labyrinth strip draw-in groove, improve the phenomenon that in former maintenance craft, spring easily misplaces, simplify installation process, improve upkeep operation efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
Fig. 1 is turbine steam seal structural representation;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the structural representation of the replacing frock of the utility model turbine steam seal flat spring;
Fig. 4 is that Turbine Steam mounting and spring fitting are in the schematic diagram of this frock.
Detailed description of the invention
Embodiment as shown in Figure 1, the replacing frock of the utility model turbine steam seal flat spring comprises arc 3, connecting plate 4, pressing plate 5 and clamping screw 6, described arc 3 and pressing plate 5 interval are arranged, described connecting plate 4 is located at the same side of described arc 3 and pressing plate 5 and vertical arc plate 3, described pressing plate 5 has screw, and described clamping screw 6 is twisted in the screw of described pressing plate 5.
Preferably, the width of described arc 3 is less than the width of labyrinth strip bottom surface, and the width of described pressing plate 5 is less than the width of labyrinth strip end face.Be convenient to after steam turbine cylinder draw-in groove, this frock be extracted out in draw-in groove at labyrinth strip spring fitting, avoid blocking.
Preferably, the width of described arc is less than labyrinth strip bottom width 10mm, and the width of described pressing plate is less than labyrinth strip end face width 10mm.
As shown in Figure 4, in a pre-installation, first spring 2 is installed on the bottom surface of labyrinth strip body 1, because labyrinth strip body 1 and spring 2 are matched in clearance, be easy to loosening, therefore after being in place by spring 2, snap between the arc 3 of this frock and pressing plate 5 together by labyrinth strip body 1 and spring 2, the side of labyrinth strip body 1 is connected plate 4, arc 3 plays the effect of carrying labyrinth strip body 1 and spring 2, and make spring 2 reliably connect labyrinth strip body 1 bottom surface, do not loosen, indeformable; Then tighten the clamping screw 6 on pressing plate 5, labyrinth strip body 1, spring 2 and this frock are fixed together, do not loosen.
Then the arc 3 of this frock is slided in the draw-in groove of steam turbine cylinder, after labyrinth strip is in place, the clamping screw 6 on pressing plate 5 is unclamped, subsequently this frock is extracted out in the draw-in groove of steam turbine cylinder.Such labyrinth strip and spring fitting put in place, and spring is not loosening, indeformable, greatly shortens the repair time.
This tool structure is simple, installs easy to operate, to solve in installation process spring owing to not easily installing, adjusting in position by this frock, the problem can be out of shape in installation process, loosened, improve overhaul efficiency, ensure repair quality, security is also greatly improved.
Claims (3)
1. the replacing frock of a turbine steam seal flat spring, it is characterized in that: this frock comprises arc, connecting plate, pressing plate and clamping screw, described arc and pressing plate interval are arranged, described connecting plate is located at the same side of described arc and pressing plate and vertical arc plate, described pressing plate has screw, and described clamping screw is twisted in the screw of described pressing plate.
2. the replacing frock of turbine steam seal flat spring according to claim 1, is characterized in that: the width of described arc is less than the width of labyrinth strip bottom surface, and the width of described pressing plate is less than the width of labyrinth strip end face.
3. the replacing frock of turbine steam seal flat spring according to claim 1, is characterized in that: the width of described arc is less than labyrinth strip bottom width 10mm, and the width of described pressing plate is less than labyrinth strip end face width 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520162156.XU CN204640138U (en) | 2015-03-23 | 2015-03-23 | The replacing frock of turbine steam seal flat spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520162156.XU CN204640138U (en) | 2015-03-23 | 2015-03-23 | The replacing frock of turbine steam seal flat spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204640138U true CN204640138U (en) | 2015-09-16 |
Family
ID=54092918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520162156.XU Expired - Fee Related CN204640138U (en) | 2015-03-23 | 2015-03-23 | The replacing frock of turbine steam seal flat spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204640138U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346408A (en) * | 2016-11-01 | 2017-01-25 | 山东电力建设第工程公司 | Tool and method for removing steam sealing block used for steam turbine generator unit |
| CN109834481A (en) * | 2019-04-03 | 2019-06-04 | 哈尔滨汽轮机厂有限责任公司 | A kind of positioning device and localization method for processing steam turbine inner gland segmental arc |
-
2015
- 2015-03-23 CN CN201520162156.XU patent/CN204640138U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346408A (en) * | 2016-11-01 | 2017-01-25 | 山东电力建设第工程公司 | Tool and method for removing steam sealing block used for steam turbine generator unit |
| CN109834481A (en) * | 2019-04-03 | 2019-06-04 | 哈尔滨汽轮机厂有限责任公司 | A kind of positioning device and localization method for processing steam turbine inner gland segmental arc |
| CN109834481B (en) * | 2019-04-03 | 2023-12-05 | 哈尔滨汽轮机厂有限责任公司 | Positioning device and positioning method for processing steam seal arc section in steam turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |