CN205135732U - Lateral part volute admission formula low pressure inner casing for steam turbine - Google Patents
Lateral part volute admission formula low pressure inner casing for steam turbine Download PDFInfo
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- CN205135732U CN205135732U CN201520997790.5U CN201520997790U CN205135732U CN 205135732 U CN205135732 U CN 205135732U CN 201520997790 U CN201520997790 U CN 201520997790U CN 205135732 U CN205135732 U CN 205135732U
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- steam turbine
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- low pressure
- inner casing
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Abstract
The utility model provides a lateral part volute admission formula low pressure inner casing for steam turbine, it relates to the inner casing of low pressure for the steam turbine, concretely relates to lateral part volute admission formula low pressure inner casing for steam turbine. The utility model discloses a to solve present steam turbine low pressure jar admission passageway not smooth, mobile not good problem. The utility model discloses an inner cylinder body, inner cylinder body forms the big inner casing structure of integral type by last cylinder body and lower cylinder body, and the bottom of lower cylinder body is equipped with eight sections extraction openings, seven sections extraction openings, six sections extraction openings, five sections extraction openings, seven sections extraction openings, eight sections extraction openings from left to right in proper order. The utility model is used for on the steam turbine.
Description
Technical field
The utility model relates to a kind of steam turbine low-pressure internal cylinder, is specifically related to a kind of steam turbine sidepiece volute admission formula low-pressure internal cylinder, belongs to steam turbine equipment field.
Background technique
Existing Supercritical 600 MW Steam Turbine low pressure admission mode is that steam flow enters No. 1 respectively by mesolow connecting tube, in the middle part of No. 2 low pressure (LP) cylinders.Low-pressure internal cylinder is two inner casings, 1, No. 2 inner casings, and unit is in operation sealing difference, poor rigidity; Welding type low-pressure internal cylinder admission flow-disturbing is serious, and crushing is larger.
Model utility content
The utility model is not smooth for solving existing turbine low pressure cylinder admission passage, the problem that mobility is bad, and then proposes a kind of steam turbine sidepiece volute admission formula low-pressure internal cylinder.
The utility model is the technological scheme taked that solves the problem: the utility model comprises inner cylinder body, described inner cylinder body forms integral type imperial palace cylinder structure by upper cylinder body and lower cylinder body, and the bottom of lower cylinder body is provided with eight sections of bleeding points, seven sections of bleeding points, six sections of bleeding points, five sections of bleeding points, seven sections of bleeding points, eight sections of bleeding points from left to right successively.
Further, the sidepiece of upper cylinder body and lower cylinder body is equipped with suction port.
Further, described inner cylinder body is voluted type low-pressure internal cylinder body.
The beneficial effects of the utility model are: 1. in the utility model sidepiece volute admission formula, cylinder structure can make steam flow admission passage accessible, low pressure loss, and flow characteristic is good, save the consumption of primary energy, improve the benefit of power plant.2. leak vapour by leak gas local small size of overall large size.3. the contact distance of integral level split reduces.4. the utility model low-pressure internal cylinder compact structure, Safety performance is high, can ensure unit safety operation.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Embodiment
Embodiment one: composition graphs 1 illustrates present embodiment, described in present embodiment, a kind of steam turbine sidepiece volute admission formula low-pressure internal cylinder comprises inner cylinder body 1, described inner cylinder body 1 forms integral type imperial palace cylinder structure by upper cylinder body 1-1 and lower cylinder body 1-2, and the bottom of lower cylinder body 1-2 is provided with eight sections of bleeding points, 2, seven sections of bleeding points, 3, six sections of bleeding points, 4, five sections of bleeding points, 5, seven sections of bleeding points, 3, eight sections of bleeding points 2 from left to right successively.
Embodiment two: composition graphs 1 illustrates present embodiment, described in present embodiment, a kind of upper cylinder body 1-1 of steam turbine sidepiece volute admission formula low-pressure internal cylinder and the sidepiece of lower cylinder body 1-2 are equipped with suction port 6.Other composition and annexation identical with embodiment one.
Embodiment three: composition graphs 1 illustrates present embodiment, described in present embodiment, a kind of inner cylinder body 1 of steam turbine sidepiece volute admission formula low-pressure internal cylinder is voluted type low-pressure internal cylinder body.Other composition and annexation identical with embodiment one.
Claims (3)
1. a steam turbine sidepiece volute admission formula low-pressure internal cylinder, it comprises inner cylinder body (1), it is characterized in that: described inner cylinder body (1) forms integral type imperial palace cylinder structure by upper cylinder body (1-1) and lower cylinder body (1-2), the bottom of lower cylinder body (1-2) is provided with eight sections of bleeding points (2), seven sections of bleeding points (3), six sections of bleeding points (4), five sections of bleeding points (5), seven sections of bleeding points (3), eight sections of bleeding points (2) from left to right successively.
2. a kind of steam turbine sidepiece volute admission formula low-pressure internal cylinder according to claim 1, is characterized in that: the sidepiece of upper cylinder body (1-1) and lower cylinder body (1-2) is equipped with suction port (6).
3. a kind of steam turbine sidepiece volute admission formula low-pressure internal cylinder according to claim 1, is characterized in that: described inner cylinder body (1) is voluted type low-pressure internal cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520997790.5U CN205135732U (en) | 2015-12-03 | 2015-12-03 | Lateral part volute admission formula low pressure inner casing for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520997790.5U CN205135732U (en) | 2015-12-03 | 2015-12-03 | Lateral part volute admission formula low pressure inner casing for steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135732U true CN205135732U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520997790.5U Active CN205135732U (en) | 2015-12-03 | 2015-12-03 | Lateral part volute admission formula low pressure inner casing for steam turbine |
Country Status (1)
| Country | Link |
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| CN (1) | CN205135732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268074A (en) * | 2018-07-19 | 2019-01-25 | 哈尔滨汽轮机厂有限责任公司 | A kind of low pressure nuclear steam turbine of 360 ° of spiral cases of band into vapour formula inner casing |
-
2015
- 2015-12-03 CN CN201520997790.5U patent/CN205135732U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268074A (en) * | 2018-07-19 | 2019-01-25 | 哈尔滨汽轮机厂有限责任公司 | A kind of low pressure nuclear steam turbine of 360 ° of spiral cases of band into vapour formula inner casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |