CN204851345U - A guide ring for steam turbine steam exhaust jar - Google Patents
A guide ring for steam turbine steam exhaust jar Download PDFInfo
- Publication number
- CN204851345U CN204851345U CN201520609376.2U CN201520609376U CN204851345U CN 204851345 U CN204851345 U CN 204851345U CN 201520609376 U CN201520609376 U CN 201520609376U CN 204851345 U CN204851345 U CN 204851345U
- Authority
- CN
- China
- Prior art keywords
- plate
- crown plate
- flange assembly
- ring flat
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model discloses a guide ring for steam turbine steam exhaust jar, including flange assembly and with flange assembly fixed connection's crown plate subassembly, the flange assembly upper surface is provided with the installation location tang of connecting the crown plate subassembly, and the flange assembly inner wall is provided with the vapor seal mounting groove, the crown plate subassembly is including the oblique straightway crown plate, circular arc section crown plate and the quadrature straightway crown plate that set up structure as an organic whole, a plurality of support rib plate of fixedly connected with between flange assembly upper surface and the crown plate subassembly surface, the last water pipe constant head tank that is provided with lifting eye and fixed spray pipe of support rib plate. The crown plate subassembly changes oblique straightway crown plate, circular arc section crown plate and quadrature straightway crown plate syllogic structure into by original full linear structure, has guaranteed the stability in diffusion in -process flow field, does not produce the obvious separation of flow and the vortex, has increased the diffusion ability, has reduced flow losses.
Description
Technical field
The utility model belongs to the technical field of steam turbine, specifically, relates to a kind of guide ring for discharge cylinder of steam turbine.
Background technique
In exhaust casing internal flow, vorticla motion is the main cause of exhaust casing internal pressure loss.The aeroperformance of exhaust casing affects by steam discharge spiral case, the geometrical shape of Diffuser, the arrangement of reinforcer and incoming flow conditions etc. are many-sided.Whether the shape of diffuser pipe is excellent most important to the mobility of whole exhaust casing, directly affects the aeroperformance of exhaust casing.
The quality of guide ring determines the performance of diffuser pipe.The inwall of original guide ring is straight line type, and diffuser pipe diffusion is than little, and the diffusion ability of exhaust casing is low, input static pressure is larger than exit static pressure on the contrary, in exhaust casing, steam flow vortex is very serious, and outlet port streamline distribution is extremely uneven, indirectly causes pitot loss in exhaust casing larger.
Model utility content
For deficiency above-mentioned in prior art, the utility model provides the guide ring for discharge cylinder of steam turbine that a kind of pitot loss degree reduces, airflow stability strengthens.
In order to achieve the above object, the solution that the utility model adopts is: a kind of guide ring for discharge cylinder of steam turbine, the ring flat-plate assembly comprising flange assembly and be fixedly connected with flange assembly; Flange assembly lower surface is provided with annular collecting vat, and flange upper surface is provided with the installation positioning spigot of connecting ring board component, and flange assembly inwall is provided with packing mounting groove; Ring flat-plate assembly comprises the skew lines section ring flat-plate, arc section ring flat-plate and the orthogonal straight lines section ring flat-plate three stage structure that are set to one; Be fixedly connected with some bearing ribs between flange assembly upper surface and ring flat-plate module outer surface, bearing rib be provided with the water pipe locating slot of lifting eye and fixing shower.
Further, flange assembly upper surface is provided with the gusset locating slot limiting bearing rib.
Further, flange assembly is set to a pair involutory semicircle flange be fixedly connected with.
Further, ring flat-plate module edge is provided with the installation slot to make way avoiding miscellaneous part in exhaust casing.
Further, ring flat-plate assembly is set to a pair involutory semicircle ring flat-plate be fixedly connected with.
The beneficial effects of the utility model are, exhaust stage blade ponding is dredged away by annular collecting vat, the exhaust stage blade in protection exhaust casing; Packing mounting groove is for installing labyrinth strip; Flange assembly and ring flat-plate assembly are designed to two halves respectively, are convenient to install and reduce cost of transportation; Lifting eye on bearing rib is convenient to the lifting operation in production and installation process; Ring flat-plate assembly is set to skew lines section ring flat-plate integrally, arc section ring flat-plate and orthogonal straight lines section ring flat-plate three-stage structure, ensure that the stability in flow field in diffusion process, does not produce the obvious separation of flow and eddy current, add diffusion ability, reduce flow losses.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of guide ring of the present utility model.
Fig. 2 is the schematic perspective view of semicircle flange in the utility model.
Fig. 3 is the enlarged view at A place in Fig. 2.
Fig. 4 is the plan view of semicircle ring flat-plate in the utility model.
In accompanying drawing:
1, flange assembly; 11, annular collecting vat; 12, positioning spigot is installed; 13, packing mounting groove;
14, gusset locating slot; 2, ring flat-plate assembly; 21, skew lines section ring flat-plate; 22, arc section ring flat-plate;
23, orthogonal straight lines section ring flat-plate; 24, slot to make way is installed; 3, bearing rib; 31, lifting eye;
32, water pipe locating slot.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
The utility model provides a kind of guide ring for discharge cylinder of steam turbine, as shown in Figure 1, and the ring flat-plate assembly 2 comprising flange assembly 1 and be fixedly connected with flange assembly 1.As shown in accompanying drawing 2 and accompanying drawing 3, flange assembly 1 lower surface is provided with annular collecting vat 11, and exhaust stage blade ponding is dredged away by annular collecting vat 11, the exhaust stage blade in protection exhaust casing; Flange upper surface is provided with the installation positioning spigot 12 of connecting ring board component 2, and flange assembly 1 inwall is provided with packing mounting groove 13, and packing mounting groove 13 is for installing labyrinth strip; Flange assembly 1 upper surface is provided with the gusset locating slot 14 limiting bearing rib 3.
As shown in accompanying drawing 1 and accompanying drawing 4, ring flat-plate assembly 2 is set to skew lines section ring flat-plate 21 integrally, arc section ring flat-plate 22 and orthogonal straight lines section ring flat-plate 23 three stage structure, ring flat-plate assembly 2 changes the composite structure of straight line type and circular arc type into by original whole line type structure, ensure that the stability in flow field in diffusion process, do not produce the obvious separation of flow and eddy current, add diffusion ability, reduce flow losses; Ring flat-plate assembly 2 edge is provided with the installation slot to make way 24 avoiding miscellaneous part in exhaust casing.
As shown in accompanying drawing 1 and accompanying drawing 4, some bearing ribs 3 are fixedly connected with between flange assembly 1 upper surface and ring flat-plate assembly 2 outer surface, bearing rib 3 is provided with the water pipe locating slot 32 of lifting eye 31 and fixing shower, the lifting eye 31 on bearing rib 3 is convenient to the lifting operation in production and installation process.As shown in accompanying drawing 2 and accompanying drawing 4, flange assembly 1 is set to a pair involutory semicircle flange be fixedly connected with, and ring flat-plate assembly 2 is set to a pair involutory semicircle ring flat-plate be fixedly connected with, and is convenient to install and reduces cost of transportation.
Claims (5)
1. for a guide ring for discharge cylinder of steam turbine, it is characterized in that: the ring flat-plate assembly (2) comprising flange assembly (1) and be fixedly connected with flange assembly (1); Flange assembly (1) lower surface is provided with annular collecting vat (11), flange upper surface is provided with the installation positioning spigot (12) of connecting ring board component (2), and flange assembly (1) inwall is provided with packing mounting groove (13); Ring flat-plate assembly (2) comprises the skew lines section ring flat-plate (21), arc section ring flat-plate (22) and orthogonal straight lines section ring flat-plate (23) three stage structure that are set to one; Be fixedly connected with some bearing ribs (3) between flange assembly (1) upper surface and ring flat-plate assembly (2) outer surface, bearing rib (3) be provided with the water pipe locating slot (32) of lifting eye (31) and fixing shower.
2. guide ring according to claim 1, is characterized in that: described flange assembly (1) upper surface is provided with the gusset locating slot (14) limiting bearing rib (3).
3. guide ring according to claim 2, is characterized in that: described flange assembly (1) is set to a pair involutory semicircle flange be fixedly connected with.
4. guide ring according to claim 1, is characterized in that: described ring flat-plate assembly (2) edge is provided with the installation slot to make way (24) avoiding miscellaneous part in exhaust casing.
5. guide ring according to claim 4, is characterized in that: described ring flat-plate assembly (2) is set to a pair involutory semicircle ring flat-plate be fixedly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520609376.2U CN204851345U (en) | 2015-08-13 | 2015-08-13 | A guide ring for steam turbine steam exhaust jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520609376.2U CN204851345U (en) | 2015-08-13 | 2015-08-13 | A guide ring for steam turbine steam exhaust jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851345U true CN204851345U (en) | 2015-12-09 |
Family
ID=54741903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520609376.2U Withdrawn - After Issue CN204851345U (en) | 2015-08-13 | 2015-08-13 | A guide ring for steam turbine steam exhaust jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065068A (en) * | 2015-08-13 | 2015-11-18 | 德阳东汽电站机械制造有限公司 | Deflector ring for exhaust hood of turbine |
-
2015
- 2015-08-13 CN CN201520609376.2U patent/CN204851345U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065068A (en) * | 2015-08-13 | 2015-11-18 | 德阳东汽电站机械制造有限公司 | Deflector ring for exhaust hood of turbine |
| CN105065068B (en) * | 2015-08-13 | 2016-07-20 | 德阳东汽电站机械制造有限公司 | A kind of guide ring for discharge cylinder of steam 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: 20151209 Effective date of abandoning: 20160720 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |