CN205064011U - A temperature measurement mounting structure and steam turbine for steam turbine - Google Patents
A temperature measurement mounting structure and steam turbine for steam turbine Download PDFInfo
- Publication number
- CN205064011U CN205064011U CN201520859017.2U CN201520859017U CN205064011U CN 205064011 U CN205064011 U CN 205064011U CN 201520859017 U CN201520859017 U CN 201520859017U CN 205064011 U CN205064011 U CN 205064011U
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- China
- Prior art keywords
- sealing
- mounting structure
- protector
- steam turbine
- protection tube
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- 238000009529 body temperature measurement Methods 0.000 title abstract 5
- 238000007789 sealing Methods 0.000 claims description 75
- 230000001012 protector Effects 0.000 claims description 49
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 description 4
- 206010044565 Tremor Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to a steam turbine field to a temperature measurement mounting structure and a steam turbine for being used for the steam turbine is disclosed, temperature measurement mounting structure includes temperature element, temperature element including the protection tube of central blind hole has and set up in sensing element in the blind hole of center, the steam turbine is including inner casing that has a temperature element mounting hole and the outer shell that has the 2nd temperature element mounting hole, protection tube wears to locate a temperature element mounting hole with in the 2nd temperature element mounting hole, so that temperature element's measuring junction stretches into in the inner casing, temperature measurement mounting structure still locates including the cover protection tube's periphery and connect hermetcally in the inner casing with the protective structure of outer shell will be so that will the inner casing with steam between the outer shell with protection tube separates. The utility model discloses a temperature measurement mounting structure can prevent effectively that protection tube wearing and tearing from breaking.
Description
Technical field
The utility model relates to steam turbine field, particularly, relates to a kind of thermometric mounting structure for steam turbine.In addition, the utility model also relates to a kind of steam turbine.
Background technique
Steam turbine is the rotary power machinery transformation of energy of steam being become mechanical work, also known as steam turbine.It is mainly used as prime mover of generating, also can the various pump of Direct driver, blower fan, compressor and propeller for vessels etc., the steam discharge of steam turbine or intermediate extraction can also be utilized to meet and produce and heat supply needs in life.
The pressure of Control Stage of Steam Turbine, temperature are the parameters the most directly perceived checking governing stage running state, are also one of monitored parameters important in unit operation.As shown in Figure 1, existing large capacity turbine comprises the inner casing 1 with the first temperature measuring element mounting hole, there is the outer shell 2 of the second temperature measuring element mounting hole and the thermometric mounting structure for steam turbine, this thermometric mounting structure comprises temperature measuring element 3, temperature measuring element 3 comprises the protection tube 3a with central blind hole and the sensing element 3b be arranged in central blind hole, protection tube 3a is arranged in the first temperature measuring element mounting hole and the second temperature measuring element mounting hole, so that the measuring end of this temperature measuring element 3 to stretch in inner casing 1 and measures the temperature of inner casing 1 steam inside, and while avoiding the direct contact thermography element 3 of inner casing 1 steam inside by protection tube 3a, also avoid inner casing 1 steam inside to external leakage.The protection tube 3a of existing temperature measuring element 3 is stretched into by outer shell 2 outside, design elongated, and for ensureing that temperature measuring element 3 can be installed smoothly, protection tube 3a and inner casing 1 adopt Spielpassung, be acting flowback steam in interlayer in steam turbine set operation between inner casing 1 and outer shell 2, its pressure is high, flow large, and by the impact generation vibration of this vapor flow, temperature measuring element mounting hole frictional impact that is long-term and inner casing 1 finally causes protection tube 3a to wear and tear to protection tube 3a, break, and vapo(u)r escape occurs.
In view of this, need to provide a kind of novel protection tube that can effectively prevent to wear and tear the thermometric mounting structure for steam turbine broken.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of thermometric mounting structure for steam turbine, and this thermometric mounting structure being used for steam turbine can prevent protection tube wearing and tearing from breaking effectively.
In addition, another technical problem to be solved in the utility model is to provide a kind of steam turbine, and the thermometric mounting structure of this steam turbine can prevent protection tube wearing and tearing from breaking effectively.
In order to solve the problems of the technologies described above, the utility model provides a kind of thermometric mounting structure for steam turbine, comprise temperature measuring element, described temperature measuring element comprises the protection tube with central blind hole and the sensing element be arranged in described central blind hole, described steam turbine comprises the inner casing with the first temperature measuring element mounting hole and the outer shell with the second temperature measuring element mounting hole, described protection tube is arranged in described first temperature measuring element mounting hole and described second temperature measuring element mounting hole, so that the measuring end of described temperature measuring element stretches in described inner casing, described thermometric mounting structure also comprises the periphery that is sheathed on described protection tube and is connected to the safeguard structure of described inner casing and described outer shell hermetically, the steam between described inner casing and described outer shell and described protection tube are separated.
Preferably, described safeguard structure comprises the first protector of the periphery being sheathed on described protection tube and is sheathed on second protector of periphery of described first protector, the sealed bottom of described first protector is connected to described inner casing, and the top seal of described second protector is connected to described outer shell.
Preferably, between described first protector and described second protector, be formed with gap, in this gap, be provided with the Sealing around described first protector.
Preferably, described Sealing comprises the first sealing video disc and the second sealing video disc, the described first sealing inner peripheral surface of video disc and the outer circumferential face of described first protector closely cooperate, and the described second sealing outer circumferential face of video disc and the inner peripheral surface of described second protector closely cooperate.
Preferably, the bottom of described second protector is connected with the mounting flange for compressing described first sealing video disc and described second sealing video disc.
Preferably, described first sealing video disc and described second sealing video disc are stacked in described gap spaced reciprocally.
Preferably, described first sealing video disc and described second sealing video disc are made by metallic material.
Preferably, described thermometric mounting structure also comprises the sealing flange be sealedly attached in described second temperature measuring element mounting hole, described protection tube is arranged in sealing flange, the top of described sealing flange is fastenedly connected with sealing flange cover, is provided with sealing gasket between described sealing flange and described sealing flange cover.
On the basis of the above-mentioned thermometric mounting structure for steam turbine, the utility model also provides a kind of steam turbine, and this steam turbine comprises the inner casing with the first temperature measuring element mounting hole, the outer shell with the second temperature measuring element mounting hole and the thermometric mounting structure for steam turbine of the present utility model.
Thermometric mounting structure for steam turbine of the present utility model is by arranging the periphery and the safeguard structure being connected to inner casing and outer shell hermetically that are sheathed on protection tube, thus the steam between inner casing and outer shell and protection tube are separated, protection tube is avoided to tremble by the impact of this vapor flow, and then the temperature measuring element mounting hole frictional impact of the long-term and inner casing of protection tube can be prevented, break therefore, it is possible to avoid protection tube to wear and tear, so that vapo(u)r escape occurs.In addition, steam turbine of the present utility model is owing to comprising the thermometric mounting structure for steam turbine of the present utility model, and therefore it has above advantage equally.
Other features and advantages of the utility model are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.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 according to embodiment of the present utility model;
Fig. 4 is the partial enlarged view of the thermometric mounting structure for steam turbine in Fig. 3.
Description of reference numerals
1, inner casing 2, outer shell
3, temperature measuring element 3a, protection tube
3b, sensing element 4, first protector
5, the second protector 6, first seals video disc
7, the second sealing video disc 8, mounting flange
9, sealing flange 10, sealing flange cover
11, sealing gasket
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
The utility model provides a kind of thermometric mounting structure for steam turbine, particularly, as shown in Figure 3 and Figure 4, this thermometric mounting structure comprises temperature measuring element 3, described temperature measuring element 3 comprises the protection tube 3a with central blind hole and the sensing element 3b be arranged in described central blind hole, described steam turbine comprises the inner casing 1 with the first temperature measuring element mounting hole and the outer shell 2 with the second temperature measuring element mounting hole, described protection tube 3a is arranged in described first temperature measuring element mounting hole and described second temperature measuring element mounting hole, so that the measuring end of described temperature measuring element 3 stretches in described inner casing 1, described thermometric mounting structure also comprises the periphery that is sheathed on described protection tube 3a and is connected to the safeguard structure of described inner casing 1 and described outer shell 2 hermetically, the steam between described inner casing 1 and described outer shell 2 and described protection tube 3a are separated.
It should be noted that, the specific constructive form of the concrete shape of protection tube 3a, the particular type of sensing element 3b and safeguard structure all can be arranged as required, and these all belong within technical conceive scope of the present utility model.
Thermometric mounting structure for steam turbine of the present utility model is by arranging the periphery and the safeguard structure being connected to inner casing 1 and outer shell 2 hermetically that are sheathed on protection tube 3a, thus the steam between inner casing 1 and outer shell 2 and protection tube 3a are separated, protection tube 3a is avoided to tremble by the impact of this vapor flow, and then the temperature measuring element mounting hole frictional impact of the long-term and inner casing 1 of protection tube 3a can be prevented, break therefore, it is possible to avoid protection tube 3a to wear and tear, so that vapo(u)r escape occurs.
In thermometric mounting structure of the present utility model, particularly, described safeguard structure comprises the first protector 4 of the periphery being sheathed on described protection tube 3a and is sheathed on second protector 5 of periphery of described first protector 4, the sealed bottom of described first protector 4 is connected to described inner casing 1, the top seal of described second protector 5 is connected to described outer shell 1, thus the steam between inner casing 1 and outer shell 2 and protection tube 3a is separated by the first protector 4 and the second protector 5.
In above-mentioned thermometric mounting structure, preferably, gap is formed between described first protector 4 and described second protector 5, the Sealing around described first protector 4 is provided with in this gap, thus sealing is formed between the first protector 4 and the second protector 5, avoid the steam between inner casing 1 with outer shell 2 to be contacted with protection tube 3a by the gap between the first protector 4 and the second protector 5.
It should be noted that, can directly being formed between described first protector 4 and described second protector 5 closely cooperates to be formed between the first protector 4 and the second protector 5 seals, thus avoids the steam between inner casing 1 with outer shell 2 to be contacted with protection tube 3a by the gap between the first protector 4 and the second protector 5.
In above-mentioned thermometric mounting structure, particularly, described Sealing comprises the first sealing video disc 6 and the second sealing video disc 7, the described first sealing inner peripheral surface of video disc 6 and the outer circumferential face of described first protector 4 closely cooperate, the described second sealing outer circumferential face of video disc 7 and the inner peripheral surface of described second protector 5 closely cooperate, more specifically, the bottom of described second protector 5 is connected with the mounting flange 8 for compressing described first sealing video disc 6 and described second sealing video disc 7, thus by this mounting flange 8, first sealing video disc 6 and the second sealing video disc 7 are pressed in described gap, and then sealing is formed between the first protector 4 and the second protector 5.
In above-mentioned thermometric mounting structure, preferably, described first sealing video disc 6 and described second sealing video disc 7 are stacked in described gap spaced reciprocally, thus maximize the sealing effect of the first sealing video disc 6 and the second sealing video disc 7 by above-mentioned rational stack manner.
In above-mentioned thermometric mounting structure, described first sealing video disc 6 and described second sealing video disc 7 can be soft stuffing box packing, preferably, described first sealing video disc 6 and described second sealing video disc 7 are made by metallic material, to improve reliability and the life-span of the sealing between the first sealing video disc 6 and the second sealing video disc 7.
In thermometric mounting structure of the present utility model, particularly, described thermometric mounting structure also comprises the sealing flange 9 be sealedly attached in described second temperature measuring element mounting hole, described protection tube 3a is arranged in sealing flange 9, the top of described sealing flange 9 is fastenedly connected with sealing flange cover 10, be provided with sealing gasket 11 between described sealing flange 9 and described sealing flange cover 10, thus by sealing flange 9 and sealing flange cover 10, thermometric mounting structure of the present utility model be installed on outer shell 2.
In addition, the utility model also provides a kind of steam turbine, and this steam turbine comprises the inner casing 1 with the first temperature measuring element mounting hole, the outer shell 2 with the second temperature measuring element mounting hole and thermometric mounting structure of the present utility model.
Thermometric mounting structure for steam turbine of the present utility model is by arranging the periphery and the safeguard structure being connected to inner casing 1 and outer shell 2 hermetically that are sheathed on protection tube 3a, thus the steam between inner casing 1 and outer shell 2 and protection tube 3a are separated, protection tube 3a is avoided to tremble by the impact of this vapor flow, and then the temperature measuring element mounting hole frictional impact of the long-term and inner casing 1 of protection tube 3a can be prevented, break therefore, it is possible to avoid protection tube 3a to wear and tear, so that vapo(u)r escape occurs.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
1. the thermometric mounting structure for steam turbine, comprise temperature measuring element (3), described temperature measuring element (3) comprises the protection tube (3a) with central blind hole and the sensing element (3b) be arranged in described central blind hole, described steam turbine comprises the inner casing (1) with the first temperature measuring element mounting hole and the outer shell (2) with the second temperature measuring element mounting hole, described protection tube (3a) is arranged in described first temperature measuring element mounting hole and described second temperature measuring element mounting hole, so that the measuring end of described temperature measuring element (3) stretches in described inner casing (1), it is characterized in that, described thermometric mounting structure also comprises the periphery that is sheathed on described protection tube (3a) and is connected to the safeguard structure of described inner casing (1) and described outer shell (2) hermetically, the steam between described inner casing (1) and described outer shell (2) and described protection tube (3a) are separated.
2. thermometric mounting structure according to claim 1, it is characterized in that, described safeguard structure comprises first protector (4) of the periphery being sheathed on described protection tube (3a) and is sheathed on second protector (5) of periphery of described first protector (4), the sealed bottom of described first protector (4) is connected to described inner casing (1), and the top seal of described second protector (5) is connected to described outer shell (2).
3. thermometric mounting structure according to claim 2, it is characterized in that, be formed with gap between described first protector (4) and described second protector (5), in this gap, be provided with the Sealing around described first protector (4).
4. thermometric mounting structure according to claim 3, it is characterized in that, described Sealing comprises the first sealing video disc (6) and the second sealing video disc (7), the described inner peripheral surface of the first sealing video disc (6) and the outer circumferential face of described first protector (4) closely cooperate, and the described outer circumferential face of the second sealing video disc (7) and the inner peripheral surface of described second protector (5) closely cooperate.
5. thermometric mounting structure according to claim 4, it is characterized in that, the bottom of described second protector (5) is connected with the mounting flange (8) for compressing described first sealing video disc (6) and described second sealing video disc (7).
6. thermometric mounting structure according to claim 4, is characterized in that, described first sealing video disc (6) and described second sealing video disc (7) are stacked in described gap spaced reciprocally.
7. thermometric mounting structure according to claim 4, is characterized in that, described first sealing video disc (6) and described second sealing video disc (7) are made by metallic material.
8. according to the thermometric mounting structure in claim 1-7 described in any one, it is characterized in that, described thermometric mounting structure also comprises the sealing flange (9) be sealedly attached in described second temperature measuring element mounting hole, described protection tube (3a) is arranged in sealing flange (9), the top of described sealing flange (9) is fastenedly connected with sealing flange cover (10), is provided with sealing gasket (11) between described sealing flange (9) and described sealing flange cover (10).
9. a steam turbine, this steam turbine comprises the inner casing (1) with the first temperature measuring element mounting hole and the outer shell (2) with the second temperature measuring element mounting hole, it is characterized in that, described steam turbine also comprises according to the thermometric mounting structure for steam turbine in claim 1-8 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859017.2U CN205064011U (en) | 2015-10-30 | 2015-10-30 | A temperature measurement mounting structure and steam turbine for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859017.2U CN205064011U (en) | 2015-10-30 | 2015-10-30 | A temperature measurement mounting structure and steam turbine for steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205064011U true CN205064011U (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520859017.2U Withdrawn - After Issue CN205064011U (en) | 2015-10-30 | 2015-10-30 | A temperature measurement mounting structure and steam turbine for steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205064011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2015
- 2015-10-30 CN CN201520859017.2U patent/CN205064011U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160302 Effective date of abandoning: 20170704 |
|
| AV01 | Patent right actively abandoned |