CN212958776U - Connecting structure of steam turbine cylinder and valve - Google Patents
Connecting structure of steam turbine cylinder and valve Download PDFInfo
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- CN212958776U CN212958776U CN202021616022.8U CN202021616022U CN212958776U CN 212958776 U CN212958776 U CN 212958776U CN 202021616022 U CN202021616022 U CN 202021616022U CN 212958776 U CN212958776 U CN 212958776U
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Abstract
The utility model provides a connection structure of steam turbine cylinder and valve for connect cylinder and valve member, the cylinder is installed on the steam turbine basis, just the cylinder includes cylinder upper portion and the cylinder lower part that distributes in proper order along upper and lower direction, the valve member is corresponding with cylinder upper portion in upper and lower direction, the valve member is connected with cylinder upper portion. According to the connecting structure of the steam turbine cylinder and the valve, the valve component of the connecting structure corresponds to the upper part of the cylinder in the vertical direction, and is directly connected with the upper part of the cylinder, so that a steam pipeline is saved, and the steam loss between the valve component and the cylinder is reduced; and the valve component can not interfere with the turbine foundation, and the turbine foundation is not required to be partially hollowed.
Description
Technical Field
The utility model relates to a steam turbine technical field especially relates to a connection structure of steam turbine cylinder and valve.
Background
Steam entering the turbine always needs to pass through the valve before entering the cylinder. The valve assembly is usually composed of a main gate and a regulating gate, the main gate being designed to close automatically and rapidly in case of emergency to cut off the main steam path to the turbine and to stop the unit from running in order to prevent excessive overspeed or to avoid some undesirable consequences. The purpose of the damper is to regulate the flow into the turbine and thereby control the turbine speed and load. The steam inlet of the main door is connected with a main steam pipeline of a power plant, and the outlet of the adjusting door is connected with the cylinder. In the prior art, the valve component and the cylinder are often communicated through a long steam pipeline, so that the using amount of the steam pipeline is large, the cost is high, and the connecting structure also causes a long steam flow path, so that the loss amount of steam between the valve component and the cylinder is large.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a connection structure of a steam turbine cylinder and a valve, which can reduce the steam loss between the valve component and the cylinder.
In order to achieve the above object, the present invention provides a connecting structure of a steam turbine cylinder and a valve for connecting the cylinder and a valve assembly, the cylinder is installed on the steam turbine foundation, and the cylinder includes a cylinder upper portion and a cylinder lower portion which are distributed in sequence along the up-down direction, the valve assembly is corresponding to the cylinder upper portion in the up-down direction, and the valve assembly is connected to the cylinder upper portion.
Further, a valve support for supporting the valve assembly is mounted on the top plane of the steam turbine foundation.
Further, the valve assembly is connected to the upper portion of the cylinder by a flange or welding.
Furthermore, the two groups of valve components are respectively a left valve component and a right valve component, the left valve component and the right valve component are respectively positioned at the left side and the right side of the upper part of the cylinder, the left valve component is fixedly connected with the left side wall of the upper part of the cylinder, and the right valve component is fixedly connected with the right side wall of the upper part of the cylinder.
Furthermore, the left valve component comprises a left main door and a left adjusting door connected with the left main door, and the left adjusting door is fixedly connected with the left side wall of the upper part of the cylinder.
Further, the right valve component comprises a right main door and a right adjusting door connected with the right main door, and the right adjusting door is fixedly connected with the right side wall of the upper part of the cylinder.
Further, the left valve component is horizontally arranged at the left side of the upper part of the cylinder, and the right valve component is horizontally arranged at the right side of the upper part of the cylinder.
Furthermore, the steam inlet of the valve assembly is connected with a steam pipeline of a power plant, and the steam inlet angle of the steam inlet can be adjusted within the range of 0-360 degrees according to the arrangement of the steam pipeline of the power plant.
As mentioned above, the utility model relates to a connection structure of steam turbine cylinder and valve has following beneficial effect:
according to the connecting structure of the steam turbine cylinder and the valve, the valve component of the connecting structure corresponds to the upper part of the cylinder in the vertical direction, and is directly connected with the upper part of the cylinder, so that a steam pipeline is saved, and the steam loss between the valve component and the cylinder is reduced; and the valve component can not interfere with the turbine foundation, and the turbine foundation is not required to be partially hollowed.
Drawings
Fig. 1 is a schematic view of a connection structure between a cylinder and a valve of a steam turbine according to an embodiment of the present invention.
Fig. 2 is a perspective view of a connection structure between a cylinder and a valve of a steam turbine according to an embodiment of the present invention.
Fig. 3 is a perspective view of a connection structure between a cylinder and a valve of a steam turbine according to a second embodiment of the present invention.
Description of the element reference numerals
1 Cylinder
11 cylinder upper part
12 cylinder lower part
2 valve Assembly
21 left valve component
211 left main door
212 left adjusting door
213 left main door steam inlet
22 right valve assembly
221 Right main door
222 right regulating door
223 right main door steam inlet
3 steam turbine foundation
31 top plane
4 Flange
5 valve support
51 left valve bracket
52 right valve support
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present application are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, change of the ratio relationship or adjustment of the sizes should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are only for convenience of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the modifications can be changed or adjusted without substantial technical changes and modifications.
Example one
As shown in fig. 1 and 2, the present embodiment provides a connection structure of a cylinder and a valve of a steam turbine, for connecting the cylinder 1 and the valve assembly 2, wherein the cylinder 1 is installed on a steam turbine base 3, and the cylinder 1 includes an upper cylinder part 11 and a lower cylinder part 12 which are sequentially distributed along an up-down direction, the valve assembly 2 corresponds to the upper cylinder part 11 in the up-down direction, and the valve assembly 2 is connected to the upper cylinder part 11. According to the connecting structure of the steam turbine cylinder and the valve, the valve component 2 corresponds to the upper part 11 of the cylinder in the vertical direction, and the valve component 2 is directly connected with the upper part 11 of the cylinder, so that a steam pipeline is saved, and the steam loss between the cylinder 1 and the valve component 2 is reduced; and the valve component 2 can not interfere with the turbine foundation 3, and the turbine foundation 3 does not need to be partially hollowed.
As shown in the figure, the valve component 2 is connected with the cylinder upper part 11 through the flange 4 in the embodiment, so that the direct connection between the valve component 2 and the cylinder upper part 11 is realized, a steam pipeline is saved, the steam loss is reduced, and the detachable connection between the valve component and the cylinder upper part is realized.
As shown in fig. 1 and fig. 2, the valve assemblies 2 in this embodiment have two sets, where the two sets of valve assemblies 2 are a left valve assembly 21 and a right valve assembly 22, the left valve assembly 21 and the right valve assembly 22 are respectively located at the left and right sides of the cylinder upper portion 11, the left valve assembly 21 is fixedly connected to the left sidewall of the cylinder upper portion 11 through the flange 4, and the right valve assembly 22 is fixedly connected to the right sidewall of the cylinder upper portion 11 through the flange 4. Specifically, as shown in fig. 1 and fig. 2, the left valve assembly 21 in this embodiment includes a left main door 211 and a left adjustable door 212 connected to the left main door 211, and an outlet of the left adjustable door 212 is fixedly connected to the left sidewall of the cylinder upper portion 11 through a flange 4, without a steam pipeline; the right valve assembly 22 comprises a right main door 221 and a right adjusting door 222 connected with the right main door 221, and an outlet of the right adjusting door 222 is fixedly connected with the right side wall of the cylinder upper part 11 through a flange 4 without a steam pipeline. As shown in fig. 1 and fig. 2, in the present embodiment, the left valve assembly 21 is horizontally disposed at the left side of the cylinder upper portion 11, specifically, the central axis of the channel in the left main door 211, the central axis of the channel in the left adjustment door 212, and the central axis of the channel in the cylinder upper portion 11 are all located on the same horizontal plane; the right valve assembly 22 is horizontally arranged at the right side of the cylinder upper part 11, specifically, the central axis of the channel in the right main door 221, the central axis of the channel in the right adjusting door 222 and the central axis of the channel in the cylinder upper part 11 are all positioned on the same horizontal plane.
As shown in fig. 1, the top plane 31 of the steam turbine base 3 in this embodiment is provided with a valve support 5 for supporting the valve assembly 2. The number of the valve supports 5 is multiple, part of the valve supports 5 are left valve supports 51, and the left valve supports 51 are used for supporting the left valve component 21; the partial valve bracket 5 is a right valve bracket 52, and the right valve bracket 52 is used for supporting the right valve assembly 22. In this embodiment, the valve assembly 2 is directly supported on the operation layer of the steam turbine foundation 3 through the valve support 5, the position of the valve support 5 does not need to additionally dig the steam turbine foundation 3 or locally modify the steam turbine foundation 3, and under the condition that the steam turbine foundation 3 is not modified, the valve assembly 2 is directly connected with the cylinder 1, so that a steam pipeline is saved, and the steam loss is reduced.
In this embodiment, the upper cylinder part 11 is the upper half of the cylinder 1, and the lower cylinder part 12 is the lower half of the cylinder 1.
In the embodiment, the steam inlet of the valve assembly 2 is connected with a steam pipeline of a power plant, and the steam inlet angle of the steam inlet can be adjusted within the range of 0-360 degrees according to the arrangement of the steam pipeline of the power plant. Specifically, in this embodiment, the left main door steam inlet 213 of the left main door 211 and the right main door steam inlet 223 of the right main door 221 are respectively connected to the main steam pipes on two sides of the power plant, and the steam inlet angles of the left main door steam inlet 213 and the right main door steam inlet 223 can be adjusted within the range of 0-360 degrees according to the arrangement requirement of the main steam pipes of the power plant.
In addition, one scheme in the prior art is that valves are arranged on two sides of the cylinder 1, the valves are connected with the cylinder 1 through pipelines, pipeline loss is large, and pipeline cost is high. Another scheme in the prior art is that valves are arranged on two sides of the cylinder 1, the valves are located on the lower half portion of the cylinder 1, and the base of the valve portion sinks to a part, so that the valve portion is not suitable for machine set reconstruction.
The connecting structure of the steam turbine cylinder and the valve in the embodiment can realize the direct connection of the valve component 2 and the cylinder 1 under the condition of not reforming the steam turbine foundation 3, thereby saving a steam pipeline and reducing steam loss.
Example two
As shown in fig. 3, in this embodiment, on the basis of the first embodiment, the valve assembly 2 is connected to the cylinder upper portion 11 by welding, so that not only is the direct connection between the two realized, but also the connection strength between the two is ensured to be high. Namely, the left adjusting door 212 of the left valve component 21 is welded with the left side wall of the cylinder upper part 11 in the embodiment; the right adjustment door 222 of the right valve assembly 22 is welded to the right sidewall of the cylinder upper portion 11.
To sum up, the utility model discloses various shortcomings in the prior art have effectively been overcome and high industry value has.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. The utility model provides a connection structure of steam turbine cylinder and valve for connect cylinder (1) and valve member (2), cylinder (1) is installed on steam turbine basis (3), and cylinder (1) is including cylinder upper portion (11) and cylinder lower part (12) that distribute in proper order along the upper and lower direction, its characterized in that, valve member (2) are corresponding with cylinder upper portion (11) in the upper and lower direction, valve member (2) are connected with cylinder upper portion (11).
2. A steam turbine cylinder and valve connection according to claim 1, characterised in that the turbine foundation (3) is provided with a valve support (5) on the top surface (31) for supporting the valve assembly (2).
3. Connecting structure of a cylinder and a valve of a steam turbine according to claim 1, characterized in that the valve assembly (2) is connected to the upper part (11) of the cylinder by means of a flange (4) or by welding.
4. The cylinder and valve connecting structure of steam turbine according to claim 1, wherein there are two sets of valve components (2), the two sets of valve components (2) are respectively a left valve component (21) and a right valve component (22), the left valve component (21) and the right valve component (22) are respectively located at the left and right sides of the cylinder upper portion (11), the left valve component (21) is fixedly connected with the left side wall of the cylinder upper portion (11), and the right valve component (22) is fixedly connected with the right side wall of the cylinder upper portion (11).
5. The cylinder-valve linkage according to claim 4, characterized in that the left valve member (21) comprises a left main gate (211) and a left adjustable gate (212) connected to the left main gate (211), the left adjustable gate (212) being fixed to the left side wall of the upper cylinder part (11).
6. The cylinder and valve connection structure of a steam turbine according to claim 4, wherein the right valve assembly (22) comprises a right main door (221) and a right adjustment door (222) connected to the right main door (221), and the right adjustment door (222) is fixedly connected to the right side wall of the upper cylinder portion (11).
7. Connecting structure of cylinder and valve of steam turbine according to claim 4, characterized in that the left valve assembly (21) is arranged horizontally on the left side of the upper part (11) of the cylinder and the right valve assembly (22) is arranged horizontally on the right side of the upper part (11) of the cylinder.
8. The cylinder and valve connecting structure of a steam turbine according to claim 1, wherein the steam inlet of the valve assembly (2) is connected to a steam pipeline of a power plant, and the steam inlet angle of the steam inlet is adjustable within a range of 0-360 ° according to the arrangement of the steam pipeline of the power plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021616022.8U CN212958776U (en) | 2020-08-06 | 2020-08-06 | Connecting structure of steam turbine cylinder and valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021616022.8U CN212958776U (en) | 2020-08-06 | 2020-08-06 | Connecting structure of steam turbine cylinder and valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212958776U true CN212958776U (en) | 2021-04-13 |
Family
ID=75349026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021616022.8U Active CN212958776U (en) | 2020-08-06 | 2020-08-06 | Connecting structure of steam turbine cylinder and valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212958776U (en) |
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2020
- 2020-08-06 CN CN202021616022.8U patent/CN212958776U/en active Active
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