CN105332745B - For the thermometric mounting structure and steam turbine of steam turbine - Google Patents
For the thermometric mounting structure and steam turbine of steam turbine Download PDFInfo
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- CN105332745B CN105332745B CN201510727699.6A CN201510727699A CN105332745B CN 105332745 B CN105332745 B CN 105332745B CN 201510727699 A CN201510727699 A CN 201510727699A CN 105332745 B CN105332745 B CN 105332745B
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- protector
- thermometric
- mounting structure
- temperature element
- steam turbine
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- 238000005259 measurement Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 68
- 230000001012 protector Effects 0.000 claims description 47
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000007769 metal material Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 4
- 206010044565 Tremor Diseases 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention relates to steam turbine field, and disclose a kind of thermometric mounting structure and a kind of steam turbine for steam turbine, the thermometric mounting structure includes temperature element, the temperature element includes the sensing element for having the protection tube of central blind hole and being arranged in the central blind hole, the steam turbine includes the inner casing with the first temperature element mounting hole and the outer shell with the second temperature element mounting hole, the protection tube is arranged in the first temperature element mounting hole and the second temperature element mounting hole, so that the measurement end of the temperature element is stretched into the inner casing, the thermometric mounting structure also includes being sheathed on the periphery of the protection tube and being hermetically connected to the safeguard structure of the inner casing and the outer shell, so that the steam between the inner casing and the outer shell is separated with the protection tube.Thermometric mounting structure of the invention can effectively prevent protection tube abrasion rupture.
Description
Technical field
The present invention relates to steam turbine field of temperature measurement, in particular it relates to a kind of thermometric mounting structure for steam turbine.This
Outward, the invention further relates to a kind of steam turbine.
Background technology
Steam turbine is the rotary power machinery that the energy of steam is converted into mechanical work, also known as steam turbine.Its master
Will the prime mover as generating, can also directly drive various pumps, blower fan, compressor and propeller for vessels etc., can also utilize
The steam discharge of steam turbine or intermediate extraction meet production and heat supply needs in life.
The pressure of Control Stage of Steam Turbine, temperature are the parameters most directly perceived for checking governing stage running status, are also unit operation
In one of important monitored parameter.As shown in figure 1, existing large capacity turbine is included with the first temperature element mounting hole
Inner casing 1, the outer shell 2 with the second temperature element mounting hole and the thermometric mounting structure for steam turbine, the thermometric mounting structure
Including temperature element 3, temperature element 3 includes the sensitivity for having the protection tube 3a of central blind hole and being arranged in central blind hole
Element 3b, protection tube 3a are arranged in the first temperature element mounting hole and the second temperature element mounting hole, so as to thermometric unit
The measurement end of part 3 is stretched into inner casing 1 and measures the temperature of the steam inside of inner casing 1, and is avoided inside inner casing 1 by protection tube 3a
While steam directly contact temperature element 3, the steam inside of inner casing 1 is also avoided to external leakage.The protection of existing temperature element 3
Sleeve pipe 3a designs elongated by being stretched into outside outer shell 2, and to ensure that temperature element 3 can be installed smoothly, protection tube 3a and inner casing
1 is coordinated using gap, is acting flowback steam in interlayer between inner casing 1 and outer shell 2 in Steam Turbine operation, its pressure is high,
Flow is big, and protection tube 3a is influenceed to occur to tremble and the temperature element mounting hole with inner casing 1 rubs for a long time by steam flowing
Collision ultimately results in protection tube 3a abrasions, rupture, and vapo(u)r escape occurs.
In view of this, it is desirable to provide it is a kind of it is new can effectively prevent protection tube wear and tear rupture for steam turbine
Thermometric mounting structure.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of thermometric mounting structure for steam turbine, and this is used for steamer
The thermometric mounting structure of machine can effectively prevent protection tube abrasion rupture.
Additionally, another technical problem to be solved by this invention is to provide a kind of steam turbine, the thermometric peace of the steam turbine
Assembling structure can effectively prevent protection tube abrasion rupture.
In order to solve the above-mentioned technical problem, the present invention provides a kind of thermometric mounting structure for steam turbine, including thermometric
Element, the sensitivity unit that the temperature element includes the protection tube with central blind hole and is arranged in the central blind hole
Part, the steam turbine includes the inner casing with the first temperature element mounting hole and the outer shell with the second temperature element mounting hole,
The protection tube is arranged in the first temperature element mounting hole and the second temperature element mounting hole, so as to the survey
The measurement end of warm element is stretched into the inner casing, and the thermometric mounting structure also includes being sheathed on the periphery of the protection tube simultaneously
And it is hermetically connected to the safeguard structure of the inner casing and the outer shell, so as to by the steam between the inner casing and the outer shell
Separate with the protection tube.
Preferably, the safeguard structure includes the first protector of the periphery for being sheathed on the protection tube and is sheathed on
Second protector of the periphery of first protector, the sealed bottom of first protector is connected to the inner casing, described
The outer shell is sealedly attached at the top of second protector.
Preferably, gap is formed between first protector and second protector, ring is provided with the gap
Around the seal of first protector.
Preferably, the seal includes the first sealing disk and the second sealing disk, and described first seals the interior of disk
Side face is fitted close with the outer peripheral face of first protector, the outer peripheral face and second protector of the second sealing disk
Inner peripheral surface be fitted close.
Preferably, the bottom of second protector is connected with for compressing the first sealing disk and described second close
Seal the mounting flange of disk.
Preferably, the first sealing disk and the second sealing disk are stacked in the gap spaced reciprocally.
Preferably, the first sealing disk and the second sealing disk are made by metal material.
Preferably, the thermometric mounting structure also includes the sealing being sealedly attached in the second temperature element mounting hole
Flange, the protection tube is arranged in the sealing flange, and sealing flange cover, institute are fastenedly connected with the top of the sealing flange
State and be provided with sealing gasket between sealing flange and the sealing flange cover.
On the basis of the above-mentioned thermometric mounting structure for steam turbine, the present invention also provides a kind of steam turbine, the steamer
Machine includes the inner casing with the first temperature element mounting hole, the outer shell with the second temperature element mounting hole and use of the invention
In the thermometric mounting structure of steam turbine.
Thermometric mounting structure for steam turbine of the invention is sheathed on the periphery of protection tube by setting and seals
Be connected to the safeguard structure of inner casing and outer shell, so as to the steam between inner casing and outer shell and protection tube be separated, it is to avoid anti-
Protecting pipe is influenceed to tremble by steam flowing, so be prevented from protection tube for a long time with the installation of the temperature element of inner casing
Hole frictional impact, ruptures therefore, it is possible to avoid protection tube from wearing and tearing, so that there is vapo(u)r escape.Additionally, steam turbine of the invention
Due to including the thermometric mounting structure for steam turbine of the invention, therefore it equally has above advantage.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of specification, with following tool
Body implementation method is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of the thermometric mounting structure for steam turbine of prior art；
Fig. 2 is the partial enlarged view of the thermometric mounting structure for steam turbine in Fig. 1；
Fig. 3 is the schematic diagram of the thermometric mounting structure for steam turbine of specific embodiment of the invention；
Fig. 4 is the partial enlarged view of the thermometric mounting structure for steam turbine in Fig. 3.
Description of reference numerals
1st, inner casing 2, outer shell
3rd, temperature element 3a, protection tube
3b, sensing element 4, the first protector
5th, the second protector 6, first seals disk
7th, the second sealing disk 8, mounting flange
9th, sealing flange 10, sealing flange cover
11st, sealing gasket
Specific embodiment
Specific embodiment of the invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The present invention provides a kind of thermometric mounting structure for steam turbine, specifically, as shown in Figure 3 and Figure 4, thermometric peace
Assembling structure include temperature element 3, the temperature element 3 include with central blind hole protection tube 3a and be arranged at it is described in
Sensing element 3b in heart blind hole, the steam turbine includes the inner casing 1 with the first temperature element mounting hole and is surveyed with second
The outer shell 2 of warm element mounting hole, the protection tube 3a is arranged in the first temperature element mounting hole and second thermometric
In element mounting hole, so that the measurement end of the temperature element 3 is stretched into the inner casing 1, the thermometric mounting structure also includes
The periphery for being sheathed on the protection tube 3a and the safeguard structure for being hermetically connected to the inner casing 1 and the outer shell 2, so as to
Steam between the inner casing 1 and the outer shell 2 is separated with the protection tube 3a.
It should be noted that the concrete shape of protection tube 3a, the particular type of sensing element 3b and safeguard structure
Specific constructive form can be arranged as required to, and these are belonged within range of the technology design of the invention.
Thermometric mounting structure for steam turbine of the invention is sheathed on the periphery of protection tube 3a and close by setting
Feud is connected to the safeguard structure of inner casing 1 and outer shell 2, so as to the steam between inner casing 1 and outer shell 2 and protection tube 3a be divided
Influenceed to tremble by steam flowing every, it is to avoid protection tube 3a, so be prevented from protection tube 3a for a long time with inner casing 1
Temperature element mounting hole frictional impact, therefore, it is possible to avoid protection tube 3a wear and tear rupture so that occur vapo(u)r escape.
In thermometric mounting structure of the invention, specifically, the safeguard structure includes being sheathed on the protection tube 3a
Periphery the first protector 4 and be sheathed on first protector 4 periphery the second protector 5, it is described first protection
The sealed bottom of part 4 is connected to the inner casing 1, and the top of second protector 5 is sealedly attached to the outer shell 2, so that logical
The first protector 4 and the second protector 5 is crossed to separate the steam between inner casing 1 and outer shell 2 and protection tube 3a.
In above-mentioned thermometric mounting structure, it is preferable that formed between first protector 4 and second protector 5
There is gap, the seal around first protector 4 is provided with the gap, so as in the first protector 4 and the second protection
Sealing is formed between part 5, it is to avoid the steam between inner casing 1 and outer shell 2 passes through between the first protector 4 and the second protector 5
Gap contacts with protection tube 3a.
It should be noted that can directly form tight fit between first protector 4 and second protector 5
To form sealing between the first protector 4 and the second protector 5, so as to avoid the steam between inner casing 1 and outer shell 2 from passing through
Gap between first protector 4 and the second protector 5 contacts with protection tube 3a.
In above-mentioned thermometric mounting structure, specifically, the seal includes the first sealing sealing disk of disk 6 and second
7, inner peripheral surface and the outer peripheral face of first protector 4 of the first sealing disk 6 are fitted close, the second sealing disk
7 outer peripheral face is fitted close with the inner peripheral surface of second protector 5, more specifically, the bottom connection of second protector 5
There is the mounting flange 8 for compressing the first sealing disk 6 and the second sealing disk 7, so as to pass through the mounting flange 8
The first sealing sealing disk 7 of disk 6 and second is pressed in the gap, and then in the first protector 4 and the second protector 5
Between formed sealing.
In above-mentioned thermometric mounting structure, it is preferable that the first sealing disk 6 and the second sealing disk 7 are mutual
Compartment of terrain is stacked in the gap, so that it is close to maximize the first sealing disk 6 and second by above-mentioned rational stack manner
Seal the sealing effectiveness of disk 7.
In above-mentioned thermometric mounting structure, the first sealing disk 6 and the second sealing disk 7 can be soft close
Packing material, it is preferable that the first sealing disk 6 and the second sealing disk 7 are made by metal material, to improve the
The reliability of the sealing between the one sealing sealing disk 7 of disk 6 and second and life-span.
In thermometric mounting structure of the invention, specifically, the thermometric mounting structure is also described including being sealedly attached to
Sealing flange 9 in second temperature element mounting hole, the protection tube 3a is arranged in the sealing flange 9, the Sealing Method
Blue 9 top is fastenedly connected with sealing flange cover 10, and sealing is provided between the sealing flange 9 and the sealing flange cover 10
Pad 11, so as to thermometric mounting structure of the invention is installed on outer shell 2 by sealing flange 9 and sealing flange cover 10.
Additionally, the present invention also provides a kind of steam turbine, the steam turbine includes the inner casing with the first temperature element mounting hole
1st, outer shell 2 and thermometric mounting structure of the invention with the second temperature element mounting hole.
Thermometric mounting structure for steam turbine of the invention is sheathed on the periphery of protection tube 3a and close by setting
Feud is connected to the safeguard structure of inner casing 1 and outer shell 2, so as to the steam between inner casing 1 and outer shell 2 and protection tube 3a be divided
Influenceed to tremble by steam flowing every, it is to avoid protection tube 3a, so be prevented from protection tube 3a for a long time with inner casing 1
Temperature element mounting hole frictional impact, therefore, it is possible to avoid protection tube 3a wear and tear rupture so that occur vapo(u)r escape.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in range of the technology design of the invention, various letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy is no longer separately illustrated.
Additionally, can also be combined between a variety of implementation methods of the invention, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (8)
1. a kind of thermometric mounting structure for steam turbine, including temperature element (3), during the temperature element (3) is including having
The protection tube (3a) of heart blind hole and the sensing element (3b) being arranged in the central blind hole, the steam turbine include having
The inner casing (1) of the first temperature element mounting hole and the outer shell (2) with the second temperature element mounting hole, the protection tube (3a)
It is arranged in the first temperature element mounting hole and the second temperature element mounting hole, so as to the temperature element (3)
Measurement end is stretched into the inner casing (1), it is characterised in that the thermometric mounting structure also includes being sheathed on the protection tube
The periphery of (3a) and the safeguard structure of the inner casing (1) and the outer shell (2) is hermetically connected to, so as to by the inner casing
(1) separate with the protection tube (3a) with the steam between the outer shell (2), the safeguard structure is described anti-including being sheathed on
First protector (4) of the periphery of protecting pipe (3a) and be sheathed on first protector (4) periphery the second protector
(5), the sealed bottom of first protector (4) is connected to the inner casing (1), the top sealing of second protector (5)
It is connected to the outer shell (2).
2. thermometric mounting structure according to claim 1, it is characterised in that first protector (4) and described second
Protector is formed with gap between (5), and the seal around first protector (4) is provided with the gap.
3. thermometric mounting structure according to claim 2, it is characterised in that the seal includes the first sealing disk
(6) and second sealing disk (7), it is described first sealing disk (6) inner peripheral surface it is tight with the outer peripheral face of first protector (4)
Close fit, outer peripheral face and the inner peripheral surface of second protector (5) of second sealing disk (7) are fitted close.
4. thermometric mounting structure according to claim 3, it is characterised in that the bottom connection of second protector (5)
There is the mounting flange (8) for compressing first sealing disk (6) and second sealing disk (7).
5. thermometric mounting structure according to claim 3, it is characterised in that first sealing disk (6) and described the
Two sealings disk (7) are stacked in the gap spaced reciprocally.
6. thermometric mounting structure according to claim 3, it is characterised in that first sealing disk (6) and described the
Two sealings disk (7) are made by metal material.
7. the thermometric mounting structure according to any one in claim 1-6, it is characterised in that the thermometric mounting structure
Also include the sealing flange (9) being sealedly attached in the second temperature element mounting hole, the protection tube (3a) is arranged in
In the sealing flange (9), sealing flange cover (10), the sealing flange (9) are fastenedly connected with the top of the sealing flange (9)
Sealing gasket (11) is provided between the sealing flange cover (10).
8. a kind of steam turbine, the steam turbine includes inner casing (1) with the first temperature element mounting hole and with the second thermometric unit
The outer shell (2) of part mounting hole, it is characterised in that the steam turbine is also included according to any one in claim 1-7
For the thermometric mounting structure of steam turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727699.6A CN105332745B (en) | 2015-10-30 | 2015-10-30 | For the thermometric mounting structure and steam turbine of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727699.6A CN105332745B (en) | 2015-10-30 | 2015-10-30 | For the thermometric mounting structure and steam turbine of steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105332745A CN105332745A (en) | 2016-02-17 |
| CN105332745B true CN105332745B (en) | 2017-07-04 |
Family
ID=55283476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510727699.6A Active CN105332745B (en) | 2015-10-30 | 2015-10-30 | For the thermometric mounting structure and steam turbine of steam turbine |
Country Status (1)
| Country | Link |
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| CN (1) | CN105332745B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269654B (en) * | 2018-09-21 | 2021-02-02 | 东方电气集团东方汽轮机有限公司 | Reinforced temperature measuring structure for steam turbine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4132114A (en) * | 1977-03-14 | 1979-01-02 | Westinghouse Electric Corp. | Temperature probe assembly for gas turbine engine |
| JPH08201185A (en) * | 1995-01-24 | 1996-08-09 | Mitsubishi Heavy Ind Ltd | Thermocouple device |
| CN203116873U (en) * | 2013-01-10 | 2013-08-07 | 中国大唐集团环境技术有限公司 | Anti-corrosion temperature measurement device for turbine high pressure cylinder |
| CN203549806U (en) * | 2013-11-19 | 2014-04-16 | 中国神华能源股份有限公司 | Anti-wear installation structure for boiler temperature measurement device |
| CN204646343U (en) * | 2015-04-28 | 2015-09-16 | 河南第一火电建设公司 | Control Stage of Steam Turbine vapor (steam) temperature temperature measuring equipment |
| CN205064011U (en) * | 2015-10-30 | 2016-03-02 | 中国神华能源股份有限公司 | A temperature measurement mounting structure and steam turbine for steam turbine |
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2015
- 2015-10-30 CN CN201510727699.6A patent/CN105332745B/en active Active
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| Publication number | Publication date |
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| CN105332745A (en) | 2016-02-17 |
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