CN210264829U - Novel vortex side tooth steam seal - Google Patents
Novel vortex side tooth steam seal Download PDFInfo
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- CN210264829U CN210264829U CN201921449091.1U CN201921449091U CN210264829U CN 210264829 U CN210264829 U CN 210264829U CN 201921449091 U CN201921449091 U CN 201921449091U CN 210264829 U CN210264829 U CN 210264829U
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- tooth
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- vortex ring
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- 210000004907 gland Anatomy 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 abstract description 10
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000013016 damping Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 244000126211 Hericium coralloides Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a steam turbine gland sealing technical field especially relates to a novel vortex side tooth gland seal, including installing the gland body in the steam turbine gland seal slide, be provided with high tooth in the lower extreme of gland body and the corresponding department of steam turbine rotor recess position, be provided with the low tooth with the protruding position of steam turbine rotor corresponding department, for there is better sealed effect, the air inlet direction of air current all be provided with the side tooth on high tooth and the low tooth, increase the damping action to the air current, be provided with the vortex ring in the backup pad of steam turbine body, the vortex ring is formed with the integrated processing of gland seal body, the lower extreme of vortex ring is provided with the air intake, is provided with annular tooth along the ring arm inboard in the vortex ring; the arrangement of the vortex ring and the annular teeth can enable airflow to form a vortex effect in the vortex ring, and the damping effect of the steam seal on the airflow is increased. Overall speaking, the utility model discloses a sealed effectual reduces the air leakage volume of vapor lock, reduces the heat consumption of steam turbine, can accord with national energy saving and emission reduction's requirement greatly.
Description
Technical Field
The utility model belongs to the technical field of the steam turbine vapor seal technique and specifically relates to a novel vortex side tooth vapor seal is related to.
Background
Steam turbines are one of the main devices of modern thermal power plants, and are also used in the metallurgical industry, the chemical industry and ship power plants. The steam seal of the steam turbine is a device which is arranged between the dynamic part and the static part of the steam turbine and reduces or prevents the leakage of steam and the leakage of air at the vacuum side, so the steam seal of the steam turbine is very important for the operation of the steam turbine.
In recent years, with the implementation of the national policy of energy conservation and emission reduction, the energy conservation and consumption reduction of the steam turbine are more emphasized by the power plant gradually, so that the steam seal is more important to be reformed during the overhaul of the steam turbine.
Most of the existing steam turbines are traditional comb-tooth type steam seals, the comb-tooth type steam seals are seriously worn after being used for a long time, the sealing performance is reduced, the requirements of energy conservation and emission reduction cannot be met, and the problems that the sealing effect of the steam seals is improved and the air leakage of the steam seals is reduced under the background are urgently needed to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel vortex side tooth vapor seal to solve the poor technical problem of steam turbine vapor seal sealing performance among the prior art, reach good sealed effect.
The utility model discloses a novel vortex side tooth vapor seal, including installing the vapor seal body in the steam turbine vapor seal slide, its characterized in that: the steam seal comprises a steam seal body, wherein the lower end of the steam seal body is provided with a groove, the groove is provided with a high tooth, the lower end of the steam seal body is provided with a low tooth, the groove is provided with a low tooth, the support plate is provided with a vortex ring, and the lower end of the vortex ring is provided with an air inlet.
On the basis of the above technical solution, preferably, the vortex ring is provided with annular teeth along the inner side of the annular arm.
On the basis of the technical scheme, furthermore, a spring is arranged between the upper end of the steam seal body and the steam seal slideway of the steam turbine.
On the basis of any one of the above technical solutions, preferably, the high teeth and the low teeth are both provided with side teeth.
On the basis of any one technical scheme, the number of the upper side teeth of the high teeth is two, and the number of the upper side teeth of the low teeth is one.
On the basis of any one of the technical schemes, the number of the low teeth arranged at the corresponding positions of the raised parts at the two ends of the steam turbine rotor is two.
The utility model has the advantages as follows:
a novel vortex side tooth vapor seal, the lower extreme of vapor seal body is provided with high tooth and low tooth vapor seal, and all is provided with the side tooth on high tooth and low tooth, is provided with the vortex ring on the vapor seal body, and is provided with the vortex tooth on the inner wall of vortex ring, forms dual vapor seal, and the gas that flows through high low tooth gets into in the vortex ring, forms the swirl in the vortex ring, can play good sealed effect. A spring is arranged between the upper end of the steam seal body and the steam seal slide way, so that a set distance can be always kept between the steam seal and the rotor, and the optimal sealing state of the steam seal is kept; overall speaking, the utility model discloses a sealed effectual reduces the air leakage volume of vapor lock, reduces the heat consumption of steam turbine, can accord with national energy saving and emission reduction's requirement greatly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural system diagram of the novel vortex side tooth steam seal of the present invention.
Reference numerals:
1-steam turbine gland sealing slideway; 2-a gland sealing body; 3-a swirl ring; 4-high tooth; 5-low teeth; 6-side teeth; 7-ring teeth; 8-spring.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solution of the present invention is described in detail below with reference to fig. 1.
Examples
The specific implementation of this example is as follows:
the novel vortex side tooth steam seal comprises a steam seal body 2 arranged in a steam seal slideway 1 of a steam turbine, wherein a high tooth 4 is arranged at the position, corresponding to a groove part of a steam turbine rotor, of the lower end of the steam seal body 2, a low tooth 5 is arranged at the position, corresponding to a convex part of the steam turbine rotor, of the lower end of the steam seal body, two side teeth 6 are arranged in the air inlet direction of air flow on the high tooth 4, one side tooth is arranged in the air inlet direction of air flow on the low tooth 5, the damping effect on the air flow is increased, a vortex ring 3 is arranged on a supporting plate of the steam seal body 2, the vortex ring and the steam seal body are integrally processed, an air inlet is formed in the lower end of the vortex ring 3, and an annular tooth 7 is arranged in the vortex ring along the; the arrangement of the vortex ring and the annular teeth can enable airflow to form a vortex effect in the vortex ring, and the damping effect of the steam seal on the airflow is increased.
In order to ensure that the steam seal and the steam turbine rotor keep a fixed distance, a spring is arranged between the upper end of the steam seal body and a steam seal slideway of the steam turbine.
In some embodiments, the number of the low teeth arranged at the corresponding positions of the convex parts at the two ends of the turbine rotor is two, so that a strong sealing effect can be achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a novel vortex side tooth gland seal, is including installing the gland seal body in the turbine gland seal slide, its characterized in that: the steam seal comprises a steam seal body, wherein the lower end of the steam seal body is provided with a groove, the groove is provided with a high tooth, the lower end of the steam seal body is provided with a low tooth, the groove is provided with a low tooth, the support plate is provided with a vortex ring, and the lower end of the vortex ring is provided with an air inlet.
2. The novel vortex side tooth gland seal according to claim 1, wherein the vortex ring is provided with annular teeth along the inside of the annular arm.
3. The novel vortex side-toothed gland seal according to any one of claims 1 or 2, characterized in that a spring is arranged between the upper end of the gland seal body and a gland seal slideway of a steam turbine.
4. The novel vortex side tooth gland seal according to claim 1, wherein the high teeth and the low teeth are provided with side teeth.
5. The novel vortex side tooth gland seal according to claim 4, wherein the number of the high tooth upper side teeth is two, and the number of the low tooth upper side teeth is one.
6. The novel vortex side tooth gland seal according to claim 1, wherein the number of the low teeth arranged at the corresponding positions of the convex parts at the two ends of the turbine rotor is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921449091.1U CN210264829U (en) | 2019-09-03 | 2019-09-03 | Novel vortex side tooth steam seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921449091.1U CN210264829U (en) | 2019-09-03 | 2019-09-03 | Novel vortex side tooth steam seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210264829U true CN210264829U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921449091.1U Active CN210264829U (en) | 2019-09-03 | 2019-09-03 | Novel vortex side tooth steam seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210264829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627906A (en) * | 2020-12-22 | 2021-04-09 | 南京市利澜电力节能科技有限公司 | Novel steam turbine steam seal and assembling method thereof |
-
2019
- 2019-09-03 CN CN201921449091.1U patent/CN210264829U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627906A (en) * | 2020-12-22 | 2021-04-09 | 南京市利澜电力节能科技有限公司 | Novel steam turbine steam seal and assembling method thereof |
| CN112627906B (en) * | 2020-12-22 | 2022-03-25 | 南京市利澜电力节能科技有限公司 | Novel steam turbine steam seal and assembling method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230801 Address after: 202, No. 17-2, Yanda Xiyuan, Baitaling Street, Haigang District, Qinhuangdao City, Hebei Province 066000 Patentee after: Hebei Zhiying Technology Co.,Ltd. Address before: 066000 No.6 Dushan Road, Qinhuangdao Economic and Technological Development Zone, Hebei Province Patentee before: QINHUANGDAO HUA YU TONG ELECTRIC TECH. Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230818 Address after: 066000 Deputy 8-302, Qinhuang Peninsula Third District, Haigang District, Qinhuangdao City, Hebei Province Patentee after: Hebei Qiongshui Technology Co.,Ltd. Address before: 202, No. 17-2, Yanda Xiyuan, Baitaling Street, Haigang District, Qinhuangdao City, Hebei Province 066000 Patentee before: Hebei Zhiying Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231018 Address after: No.6 Dushan Road, Economic and Technological Development Zone, Qinhuangdao City, Hebei Province, 066000 Patentee after: QINHUANGDAO HUA YU TONG ELECTRIC TECH. Co.,Ltd. Address before: 066000 Deputy 8-302, Qinhuang Peninsula Third District, Haigang District, Qinhuangdao City, Hebei Province Patentee before: Hebei Qiongshui Technology Co.,Ltd. |