CN109269654B - Reinforced temperature measuring structure for steam turbine - Google Patents
Reinforced temperature measuring structure for steam turbine Download PDFInfo
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- CN109269654B CN109269654B CN201811104843.0A CN201811104843A CN109269654B CN 109269654 B CN109269654 B CN 109269654B CN 201811104843 A CN201811104843 A CN 201811104843A CN 109269654 B CN109269654 B CN 109269654B
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- metal
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- sleeve
- steam turbine
- conical
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a reinforced temperature measuring structure for a steam turbine, which comprises: the temperature measuring body, the temperature measuring body overcoat is equipped with the metal covering, the metal covering is cylindric structure, metal covering one end is connected with portable cutting ferrule, the metal covering other end has the taper cover, the taper cover inserts and treats the body of measurationing, treat to have on the body and overlap the complex taper hole with the taper, metal covering end design is toper and adds the sphere structure, and one or more metal guard ring has been arranged to insertion section metal protective sheath middle part, installs nonmetal damping ring in the mounting groove through metal guard ring intermediate position, and the damping ring comprises high temperature resistant non-metallic material, and nonmetal damping ring is compressible and inserts temperature element through compression damping ring in the metal covering when installing for interference fit with the temperature measuring sleeve internal diameter, avoids temperature element to collide with the metal sleeve under the stream vortex and damage.
Description
Technical Field
The invention relates to the technical field of steam turbines, in particular to a reinforced temperature measuring structure for a steam turbine.
Background
In the starting operation and shutdown processes of the steam turbine unit, a large number of temperature measuring elements are needed to monitor the temperature of the steam turbine, some temperature measuring elements need to go deep into the steam turbine and are installed in a metal sleeve in a high-temperature high-pressure high-speed steam flow channel, and the temperature measuring elements are screwed in the metal sleeve through a threaded sleeve clamp cantilever at the top when in work.
The operation condition of the power plant reflects that the long cantilever temperature measuring element screwed in the metal sleeve through the threaded clamping sleeve is easy to break down after running for a period of time. The temperature measuring element can be impacted and excited by high-temperature and high-speed steam flow leaked into the metal sleeve when in work, and a metal protective sleeve of the traditional temperature measuring element is easy to damage under the impact of the steam flow and the high-frequency vibration. Therefore, how to solve the above problems is a problem that is always considered by those skilled in the art.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a reinforced temperature measuring structure for a steam turbine, wherein the end head part of a metal sleeve is designed into a conical and spherical structure, the structure of the joint part corresponding to a to-be-measured part is also designed into a conical structure, the conical structure and the conical structure can be matched and attached tightly by adjusting the insertion depth in the installation process to ensure that the top end of the temperature measuring element can be reliably fixed under the impact of high-speed steam flow, one or more metal protective rings are arranged at the middle part of an insertion section metal protective sleeve, a non-metal vibration damping ring is arranged in an installation groove at the middle part of the metal protective ring and is made of a high-temperature-resistant non-metal material, the non-metal vibration damping ring can be compressed and can be inserted into the metal sleeve by compressing the vibration damping ring when being installed in interference fit with the inner diameter of the temperature measuring sleeve, and the interference fit of the vibration, the temperature measuring element is prevented from colliding with the metal sleeve under the swirling of the steam flow to be damaged.
The purpose of the invention is realized by the following technical scheme:
a strenghthened type temperature measurement structure for steam turbine includes: the temperature measuring device comprises a temperature measuring body, wherein a metal sleeve is sleeved outside the temperature measuring body, the metal sleeve is of a cylindrical structure, one end of the metal sleeve is connected with a movable clamping sleeve, a conical sleeve is arranged at the other end of the metal sleeve, the conical sleeve is inserted into a body to be measured, and a conical hole matched with the conical sleeve is formed in the body to be measured.
The invention relates to a reinforced temperature measuring structure for a steam turbine.
According to the reinforced temperature measuring structure for the steam turbine, the metal protective ring is in welded connection with the front part of the metal sleeve.
According to the reinforced temperature measurement structure for the steam turbine, the nonmetal damping ring is sleeved outside the metal protective ring.
According to the reinforced temperature measuring structure for the steam turbine, the metal protective ring is provided with the mounting ring groove, and the non-metal vibration reduction ring is mounted in the mounting ring groove.
According to the reinforced temperature measurement structure for the steam turbine, the nonmetal vibration reduction ring and the metal sleeve are in interference fit.
The invention relates to a reinforced temperature measurement structure for a steam turbine, wherein a conical sleeve comprises: the tip of the small end of the cone body is provided with a spherical surface.
According to the technical scheme, the invention has the beneficial effects that: provides a reinforced temperature measuring structure for a steam turbine, the end head part of a metal sleeve is designed into a structure of a conical and a spherical surface, the structure of the joint part corresponding to the part to be measured is also designed into a conical structure, the two can be matched and tightly adhered by adjusting the insertion depth in the installation process, the top end of the temperature measuring element can be ensured to be fixed reliably under the impact of high-speed steam flow, one or more metal protection rings are arranged at the middle part of the metal protection sleeve of the insertion section, install nonmetal damping ring in the mounting groove through metal protection ring intermediate position, the damping ring comprises high temperature resistant non-metallic material, and it is intraductal that nonmetal damping ring is compressible and insert temperature element into the metal sleeve through compression damping ring when being interference fit installation with the temperature sleeve internal diameter, and damping ring and metal sleeve's interference fit have ensured that temperature element can fix in the metal sleeve at the during operation, avoid temperature element to collide and damage with the metal sleeve under the stream vortex.
Drawings
FIG. 1 is a schematic view of an enhanced temperature measurement structure for a steam turbine according to the present invention;
FIG. 2 is a partial view of a cone-shaped sleeve of a reinforced temperature measurement structure for a steam turbine according to the present invention;
FIG. 3 is a partial view of a metal guard ring of an enhanced temperature measurement structure for a steam turbine according to the present invention.
Detailed Description
The invention will be further described with reference to specific embodiments and the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention
Referring to fig. 1 to 3, an embodiment of an enhanced temperature measurement structure for a steam turbine according to the present invention includes: temperature measurement body S1, temperature measurement body S1 overcoat is equipped with metal covering 2, metal covering 2 is cylindric structure, 2 one end of metal covering is connected with portable cutting ferrule 5, the 2 other ends of metal covering have taper cover 1, taper cover 1 inserts and treats body 7, treat to have on the body 7 of surveying and overlap 1 matched with taper hole, 2 middle parts of metal covering have a plurality of metal guard rings 3, metal guard ring 3 is welded connection with 2 front portions of metal covering, 3 outside covers of metal guard ring are equipped with nonmetal damping ring 4, installation annular 31 has on the metal guard ring 3, nonmetal damping ring 4 is installed in installation annular 31, nonmetal damping ring 4 is interference fit with the metal covering, taper cover 1 includes: the conical body 11, the tip of the said conical body 11 has sphere 12.
According to the technical scheme, the invention has the beneficial effects that: provides a reinforced temperature measuring structure for a steam turbine, the end head part of a metal sleeve is designed into a structure of a conical and a spherical surface, the structure of the joint part corresponding to the part to be measured is also designed into a conical structure, the two can be matched and tightly adhered by adjusting the insertion depth in the installation process, the top end of the temperature measuring element can be ensured to be fixed reliably under the impact of high-speed steam flow, one or more metal protection rings are arranged at the middle part of the metal protection sleeve of the insertion section, install nonmetal damping ring in the mounting groove through metal protection ring intermediate position, the damping ring comprises high temperature resistant non-metallic material, and it is intraductal that nonmetal damping ring is compressible and insert temperature element into the metal sleeve through compression damping ring when being interference fit installation with the temperature sleeve internal diameter, and damping ring and metal sleeve's interference fit have ensured that temperature element can fix in the metal sleeve at the during operation, avoid temperature element to collide and damage with the metal sleeve under the stream vortex.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides a strenghthened type temperature measurement structure for steam turbine which characterized in that includes: the temperature measuring device comprises a temperature measuring body (S1), wherein a metal sleeve (2) is sleeved outside the temperature measuring body (S1), the metal sleeve (2) is of a cylindrical structure, one end of the metal sleeve (2) is connected with a movable clamping sleeve (5), the other end of the metal sleeve (2) is provided with a conical sleeve (1), the conical sleeve (1) is inserted into a body to be measured (7), the body to be measured (7) is provided with a conical hole matched with the conical sleeve (1), the middle part of the metal sleeve (2) is provided with a plurality of metal protective rings (3), and the metal protective rings (3) are sleeved with nonmetal damping rings (4);
the metal protective ring (3) is provided with a mounting ring groove (31), and the nonmetal vibration reduction ring (4) is mounted in the mounting ring groove (31);
the nonmetal vibration reduction ring (4) is in interference fit with the metal sleeve.
2. The reinforced temperature measuring structure for the steam turbine of claim 1, wherein: the metal protective ring (3) is connected with the front part of the metal sleeve (2) in a welding way.
3. The reinforced temperature measuring structure for the steam turbine of claim 1, wherein: the conical sleeve (1) comprises: the conical body (11), the tip of the small end of the conical body (11) has a spherical surface (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104843.0A CN109269654B (en) | 2018-09-21 | 2018-09-21 | Reinforced temperature measuring structure for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104843.0A CN109269654B (en) | 2018-09-21 | 2018-09-21 | Reinforced temperature measuring structure for steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109269654A CN109269654A (en) | 2019-01-25 |
| CN109269654B true CN109269654B (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811104843.0A Active CN109269654B (en) | 2018-09-21 | 2018-09-21 | Reinforced temperature measuring structure for steam turbine |
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| Country | Link |
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| CN (1) | CN109269654B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201688924U (en) * | 2009-06-03 | 2010-12-29 | 张伟 | PT 200 temperature sensor special for measuring automobile engine and tail gas |
| WO2014182745A2 (en) * | 2013-05-07 | 2014-11-13 | Stoneridge, Inc. | Exhaust gas temperature sensor |
| CN104259518A (en) * | 2014-09-19 | 2015-01-07 | 哈尔滨汽轮机厂有限责任公司 | Turbine high pressure inner cylinder thermometer hole machining location device and use method thereof |
| CN105332745A (en) * | 2015-10-30 | 2016-02-17 | 中国神华能源股份有限公司 | Temperature measurement installation structure used for turbine and turbine |
| CN106482923A (en) * | 2016-10-28 | 2017-03-08 | 北京航天长征飞行器研究所 | Test device is demarcated in a kind of flow field being applied under hot environment |
| CN106795744A (en) * | 2014-04-30 | 2017-05-31 | 托尔特克集团有限责任公司 | For the shock absorber of downhole tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204854979U (en) * | 2015-06-30 | 2015-12-09 | 潘常青 | Large -scale turbine unit temperature sensor that takes precautions against earthquakes |
-
2018
- 2018-09-21 CN CN201811104843.0A patent/CN109269654B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201688924U (en) * | 2009-06-03 | 2010-12-29 | 张伟 | PT 200 temperature sensor special for measuring automobile engine and tail gas |
| WO2014182745A2 (en) * | 2013-05-07 | 2014-11-13 | Stoneridge, Inc. | Exhaust gas temperature sensor |
| CN106795744A (en) * | 2014-04-30 | 2017-05-31 | 托尔特克集团有限责任公司 | For the shock absorber of downhole tool |
| CN104259518A (en) * | 2014-09-19 | 2015-01-07 | 哈尔滨汽轮机厂有限责任公司 | Turbine high pressure inner cylinder thermometer hole machining location device and use method thereof |
| CN105332745A (en) * | 2015-10-30 | 2016-02-17 | 中国神华能源股份有限公司 | Temperature measurement installation structure used for turbine and turbine |
| CN106482923A (en) * | 2016-10-28 | 2017-03-08 | 北京航天长征飞行器研究所 | Test device is demarcated in a kind of flow field being applied under hot environment |
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| Publication number | Publication date |
|---|---|
| CN109269654A (en) | 2019-01-25 |
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