CN102518484A - Assembling structure for turbine steam parameter measurement probe - Google Patents
Assembling structure for turbine steam parameter measurement probe Download PDFInfo
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- CN102518484A CN102518484A CN2011103897142A CN201110389714A CN102518484A CN 102518484 A CN102518484 A CN 102518484A CN 2011103897142 A CN2011103897142 A CN 2011103897142A CN 201110389714 A CN201110389714 A CN 201110389714A CN 102518484 A CN102518484 A CN 102518484A
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- protective casing
- probe
- casing
- valve
- casing pipe
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Abstract
The invention discloses an assembling structure for a turbine steam parameter measurement probe, which comprises an inner cylinder, an outer cylinder, a probe, a casing pipe bracket, a protective casing pipe and a valve, wherein one end of the probe is connected with a measurement system; the other end of the probe passes through the inner cylinder and the outer cylinder to measure the steam parameter in a turbine; the casing pipe bracket is connected to the outer cylinder; the upper end of the casing pipe bracket is connected with the valve; the protective casing pipe is used for guiding and protecting the probe; the protective casing pipe is provided with one section of corrugated pipe, is arranged in the casing pipe bracket and extends into the inner cylinder; the bottom end of the protective casing pipe is in tight coupling with the inner cylinder; and the top end of the protective casing pipe is in tight coupling with the valve. According to the assembling structure for the turbine steam parameter measurement probe, the probe is guided and protected by the protective casing pipe provided with the corrugated pipe; two ends of the protective casing pipe respectively form reliable tight coupling with the valve and the inner cylinder of the turbine, and steam leakage is avoided; the safety of the steam parameter measurement operation and the accuracy of a measurement result are effectively guaranteed; and the unit operation safety is guaranteed.
Description
Technical field
The steam parameter that the present invention relates in the steam turbine is measured, and specifically is a kind of turbine steam condition measuring probe assembly structure.
Background technique
When the unit to steam turbine makes a service test, in order to understand in the Turbine Flow Path each item performance index of steam parameter with this grade of certain grade, need the level of probe to this grade with measuring system before, the steam parameter after inter-stage and the level measures.
At present, the probe of measuring system is directly to be assemblied on the steam turbine with the rigid seal assembly structure through a simple protective casing.Because the working medium that probe institute will measure is the steam of high temperature, high pressure, and inner casing and outer shell are arranged between the measured working medium and the external world, it is bloated poor to have behind inner casing and the outer shell expanded by heating.At the trial; The steam of high temperature, high pressure makes the rigid seal assembly structure of probe produce thermal expansion; The sealing assembly structure is difficult to bear the thermal stress that bloated difference produced of inner casing and outer shell, thereby makes the protective casing of probe and the position that is tightly connected on the steam turbine produce displacement, forms the gap; Cause sealing assembly structure and destroy, and then produce steam leakage.This not only directly influences the accuracy of measurement result, and even more serious is, when steam leaks between inner casing and the outer shell, can cause that high pressure steam leaks to low voltage terminal, causes unit economy to descend, even the safe operation of entail dangers to unit; When leaking to the external world, steam will endanger the personal safety of tester and the safe operation of unit.
Therefore, in order to stop the existing unfavorable factor of above-mentioned turbine steam condition experiment with measuring process, need the assembly structure of a kind of good airproof performance of research and development, safe and reliable turbine steam condition measuring probe badly at present.
Summary of the invention
The objective of the invention is to: to the deficiency of above-mentioned existing technology, a kind of good airproof performance, safe and reliable turbine steam condition measuring probe assembly structure are provided, this assembly structure can effectively guarantee the accuracy that steam parameter is measured, and stops steam leakage.
The technological scheme that the present invention adopts is: a kind of turbine steam condition measuring probe assembly structure comprises inner casing, outer shell, probe, casing support, protective casing and valve; Said probe one end is connected with measuring system, and the other end passes outer shell and inner casing, and the steam parameter in the steam turbine is measured; Said casing support is connected on the outer shell, and the upper end of casing support is connected with valve; Said protective casing leads to probe with work and protects, and has one section bellows on the protective casing, and protective casing is located in the casing support and extends to inner casing, and the bottom and the inner casing of protective casing are tightly connected, and the top of protective casing is connected with valve seal.
Said bellows is on the top of protective casing.
The bottom of said protective casing is connected with engage thread with inner casing, is provided with gasket seal between the two.
The top of said protective casing forms through flange and valve and is tightly connected.
Said valve is a ball valve.
The invention has the beneficial effects as follows: above-mentioned assembly structure leads the protective casing of probe through the band bellows, protect; The two ends of protective casing form reliably with valve and inner cylinder respectively and are tightly connected; The bloated difference that forms between the outer shell in thermal expansion that the steam of high temperature, high pressure produces and the steam turbine acts on the bellows of protective casing; Behind the bellows stress deformation thermal expansion and the difference that expands are effectively absorbed; The position that is tightly connected on protective casing and the steam turbine can not produce displacement, just can not form the gap yet, has stopped steam leakage; Effectively guaranteed the Security of steam parameter measurement operation and the accuracy of measurement result, and the Security of unit operation.That the present invention has is reasonable in design, simple in structure, good airproof performance, characteristics such as safe and reliable, practical.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Embodiment
The present invention includes the inner casing 1 and outer shell 2 of steam turbine, and probe 10, casing support 4, protective casing 5 and valve 8.
Wherein, probe 10 1 ends are connected with measuring system, and the other end passes outer shell 2 and inner casing 1, extend the stage that will measure, the steam parameter of this grade is measured; The bottom of casing support 4 is connected on the outer shell 2 through bolt 3, and the upper end of casing support 4 is connected with valve 8 through bolt 9, and this valve 8 is the excellent ball valve of restriction effect; Protective casing 5 usefulness work leads to probe 10 and protects; The top of protective casing 5 has one section bellows 6; Protective casing 5 is located in the casing support 4 and extends to inner casing 1, and the bottom of protective casing 5 and inner casing 1 are connected with engage thread, and the joint of protective casing 5 and inner casing 1 is provided with gasket seal; Form with this and to be tightly connected; The top of protective casing 5 has flange 7, and flange 7 is fixed between valve 8 and the casing support 4 by bolt 9, and the top of protective casing 5 forms with valve 8 through flange 7 and is tightly connected.
Can understand the true horizon of whole turbine unit through the present invention, for the performance optimization of unit provides reliable basis.After the steam parameter experiment with measuring finishes, shut down and also to take out probe 10, shut valve 8 and get final product, can not influence the safe operation behind the unit starting.
Claims (5)
1. a turbine steam condition measuring probe assembly structure is characterized in that: comprise inner casing (1), outer shell (2), probe (10), casing support (4), protective casing (5) and valve (8); Said probe (10) one ends are connected with measuring system, and the other end passes outer shell (2) and inner casing (1), and the steam parameter in the steam turbine is measured; Said casing support (4) is connected on the outer shell (2), and the upper end of casing support (4) is connected with valve (8); Said protective casing (5) leads to probe (10) with work and protects; Has one section bellows (6) on the protective casing (5); Protective casing (5) is located in the casing support (4) and extends to inner casing (1); The bottom of protective casing (5) and inner casing (1) are tightly connected, and the top of protective casing (5) and valve (8) are tightly connected.
2. according to the said turbine steam condition measuring probe of claim 1 assembly structure, it is characterized in that: said bellows (6) is on the top of protective casing (5).
3. according to claim 1 or 2 said turbine steam condition measuring probe assembly structures, it is characterized in that: the bottom of said protective casing (5) is connected with engage thread with inner casing (1), is provided with gasket seal between the two.
4. according to claim 1 or 2 said turbine steam condition measuring probe assembly structures, it is characterized in that: the top of said protective casing (5) forms with valve (8) through flange (7) and is tightly connected.
5. according to the said turbine steam condition measuring probe of claim 1 assembly structure, it is characterized in that: said valve (8) is a ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110389714.2A CN102518484B (en) | 2011-11-30 | 2011-11-30 | Assembling structure for turbine steam parameter measurement probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110389714.2A CN102518484B (en) | 2011-11-30 | 2011-11-30 | Assembling structure for turbine steam parameter measurement probe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518484A true CN102518484A (en) | 2012-06-27 |
| CN102518484B CN102518484B (en) | 2015-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110389714.2A Active CN102518484B (en) | 2011-11-30 | 2011-11-30 | Assembling structure for turbine steam parameter measurement probe |
Country Status (1)
| Country | Link |
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| CN (1) | CN102518484B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762574A (en) * | 2017-12-06 | 2018-03-06 | 中国船舶重工集团公司第七0三研究所 | A kind of measurement structure of double shell cylinder inner casing steam pressure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1262090A (en) * | 1968-09-09 | 1972-02-02 | Rosemount Eng Co Ltd | Improvements in or relating to sensor assemblies |
| JPH04174329A (en) * | 1990-11-07 | 1992-06-22 | Hitachi Ltd | Mounting structure of temperature sensor for extremely low temperature |
| DE19618588A1 (en) * | 1996-05-09 | 1997-11-13 | Asea Brown Boveri | Temperature probe, especially for insertion in inner housing bore of flow machine, e.g. steam turbine |
| CN2529224Y (en) * | 2002-02-05 | 2003-01-01 | 于国庆 | Multi-stage protection scouring-resistant temperature measuring head |
| CN2755606Y (en) * | 2004-12-03 | 2006-02-01 | 郭廷麟 | Leakage-proof protector for interior measure & endoscope apparatus installation and maintain |
| US7124623B2 (en) * | 2003-12-22 | 2006-10-24 | Denso Corporation | Gas sensor |
-
2011
- 2011-11-30 CN CN201110389714.2A patent/CN102518484B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1262090A (en) * | 1968-09-09 | 1972-02-02 | Rosemount Eng Co Ltd | Improvements in or relating to sensor assemblies |
| JPH04174329A (en) * | 1990-11-07 | 1992-06-22 | Hitachi Ltd | Mounting structure of temperature sensor for extremely low temperature |
| DE19618588A1 (en) * | 1996-05-09 | 1997-11-13 | Asea Brown Boveri | Temperature probe, especially for insertion in inner housing bore of flow machine, e.g. steam turbine |
| CN2529224Y (en) * | 2002-02-05 | 2003-01-01 | 于国庆 | Multi-stage protection scouring-resistant temperature measuring head |
| US7124623B2 (en) * | 2003-12-22 | 2006-10-24 | Denso Corporation | Gas sensor |
| CN2755606Y (en) * | 2004-12-03 | 2006-02-01 | 郭廷麟 | Leakage-proof protector for interior measure & endoscope apparatus installation and maintain |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762574A (en) * | 2017-12-06 | 2018-03-06 | 中国船舶重工集团公司第七0三研究所 | A kind of measurement structure of double shell cylinder inner casing steam pressure |
| CN107762574B (en) * | 2017-12-06 | 2024-04-09 | 中国船舶重工集团公司第七0三研究所 | Measurement structure of cylinder steam pressure in double-layer cylinder |
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| Publication number | Publication date |
|---|---|
| CN102518484B (en) | 2015-02-18 |
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