CN203559941U - Industrial steam turbine - Google Patents
Industrial steam turbine Download PDFInfo
- Publication number
- CN203559941U CN203559941U CN201320614542.9U CN201320614542U CN203559941U CN 203559941 U CN203559941 U CN 203559941U CN 201320614542 U CN201320614542 U CN 201320614542U CN 203559941 U CN203559941 U CN 203559941U
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- steam turbine
- exhaust casing
- flange
- hole
- steam
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Abstract
The utility model relates to a reliable-operation industrial steam turbine. The industrial steam turbine comprises a steam turbine cylinder body and a steam extraction cylinder, wherein the steam turbine cylinder body is provided with a flange outward in the radial direction, while the steam extraction cylinder is provided with a flange inward in the radial direction. The steam turbine cylinder body is connected with the steam extraction cylinder through a plurality of pairs of corresponding holes in the flange outward in the radial direction and the flange inward in the radial direction.
Description
Technical field
The utility model relates to steam turbine, relates in particular to industrial steam turbine.
Background technique
Steam turbine can be used for for the equipment such as generator, compressor, pump provide power, and can be applicable to power plant, chemical plant, sugar refinery, textile mills, steel mill, paper mill or mine etc.Related system generally comprises: steam generator, and it becomes steam by heating (for example,, by coal, rock gas or fuel oil) by water; Steam turbine, it becomes kinetic energy to drive various device the transformation of energy comprising in steam.The stator blade of presence bit on cylinder body and be positioned at epitrochanterian moving vane in steam turbine.When steam turbine operation, some levels that the high pressure steam of expansion becomes with moving vane alternative arrangement through stator blade rotate rotor.Pressure in steam turbine is along with the stage of steam by succession and constantly reduce.Different applications also requires steam turbine to have various steam flow configurations, for example condensation or non-condensing steam discharge, straight-through or controlled drawing gas or controlled admission.
The in the situation that of condensation steam discharge, steam is discharged from after by turbine blade, and is directed into condenser to convert water to, finally can turn back to steam generator.In the situation that drawing gas, steam is drawn out of from steam turbine, and is used to need other occasions (for example, preheating water boiler etc.) of the steam of specified pressure and temperature.The position of drawing gas can be positioned at qualified any position on steam path, and the steam extracting can be controlled by valve.
In industrial steam turbine, steam turbine cylinder is connected by being positioned at the bolt of steam turbine cylinder outside with exhaust casing, and can see from outside this bolt after installation.Being connected and can approaching from outside between steam turbine cylinder and exhaust casing, make the joint of steam turbine cylinder and exhaust casing to cause leaking because of manual operation.This has brought hidden danger to the normal operation of equipment.
Model utility content
The purpose of this utility model is to provide a kind of industrial steam turbine to guarantee reliable operation.Described industrial steam turbine comprises a steam turbine cylinder and an exhaust casing, and wherein said steam turbine cylinder has radially outside flange, and described exhaust casing has radially inside flange.Described steam turbine cylinder and described exhaust casing are connected corresponding aperture with several on described radially inside flange by described radially outside flange.Radially outside flange and radially inside flange make can be connected from inside between steam turbine cylinder and exhaust casing, thereby the joint of having avoided steam turbine cylinder and exhaust casing causes leaking because of manual operation.
According to an aspect of the present utility model, described steam turbine cylinder is connected by stretching into every pair of bolt, screw or bar in described corresponding aperture with described exhaust casing.
According on the other hand of the present utility model, the described hole on described radially outside flange is the threaded blind hole of tool, and described hole on described radially inside flange is the threaded through hole of tool not.In described hole described in one end of described bolt is swirled on radially outside flange, and its other end is fixed by nut.On radially outside flange, the threaded blind hole of tool can reduce the possibility that leakage occurs in joint.
According to of the present utility model more on the one hand, described in a resilient sleeve is connected between radially inside flange and described nut.Resilient sleeve can adapt to the deformation that steam turbine cylinder and/or exhaust casing occur because of temperature variation, with the tightness that improves the flexibility of connection and promote to connect.
Accompanying drawing explanation
The following drawings is only intended to the utility model to schematically illustrate and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 has schematically shown the sectional view according to industrial steam turbine of the present utility model, and wherein exhaust casing is connected on steam turbine cylinder and has omitted link;
Fig. 2 has schematically shown partial view A in the Fig. 1 after amplifying.
Label declaration:
1 industrial steam turbine 131 sleeves
11 steam turbine cylinder 132 nuts
111 radially outside flange 133 bolts
121 radially inside flange 112,122 holes
12 exhaust casing 29 rotors
A partial view B is towards the direction of rotor axis
The direction that C is contrary with rotor axis
Embodiment
For technical characteristics of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing embodiment of the present utility model is described.Identical in the drawings label represents identical or structural similarity but the identical parts of function, and wherein has the parts of same structure or function, has only schematically described one of them, or has only marked one of them.For making drawing succinct, in figure, only schematically shown the part relevant to the utility model, they do not represent that it is as the practical structures of product." connection ", " fixing " represent directly " connection ", " fixing " herein, or via " connection ", " fixing " of the third party.
Fig. 1 has schematically shown according to the sectional view of industrial steam turbine 1 of the present utility model.Industrial steam turbine 1 comprises a steam turbine cylinder 11 and an exhaust casing 12, and wherein steam turbine cylinder 11 and exhaust casing 12 are connected to each other by bolt.Steam turbine cylinder 11 is formed by for example alloyed steel casting conventionally, and exhaust casing 12 is made by the parts that weld conventionally.Fig. 2 has schematically shown partial view A in the Fig. 1 after amplifying, and wherein for the hole 112,122 exhaust casing 12 being connected on steam turbine cylinder 11, lays respectively at the radially outside flange 111 of steam turbine cylinder 11 and the radially inside flange 121 of exhaust casing 12.Here radially be inwardly, outwards or axially radially for the axis of the rotor 29 of steam turbine.In direction B indication partial view A towards a side of the axis of rotor 29, i.e. the inner side of steam turbine 1, and a side contrary with the axis of rotor 29, the i.e. outside of steam turbine 1 in direction C indication partial view A.One end of bolt 133 is screwed in the hole 112 on radially outside flange 111, and its other end is fixing by nut 132.Hole 112 on radially outside flange 111 is the threaded blind holes of tool, and hole 122 on radially inside flange 121 is threaded through holes of tool not.It will be understood by those skilled in the art that on the flange of steam turbine cylinder 11 and exhaust casing 12 and can several bolts be set in to corresponding aperture several.Each bolt stretches into a pair of corresponding aperture, and each bolt 133 is corresponding to a hole 122 on hole 112 on radially outside flange 111 and radially inside flange 121.The quantity of bolt and corresponding aperture depends on that specific steam turbine is in the requirement of mechanical aspects.
There are two kinds of modes can be for connecting steam turbine cylinder 11 and exhaust casing 12.A kind of mode is that first bolt 133 is screwed in the hole 112 of cylinder body 11, and then exhaust casing 12 is enclosed within on bolt 133 by hole 122, thereby exhaust casing 12 is connected with steam turbine cylinder 11, finally nut 132 is fixed on bolt 133.Another kind of mode is first to aim at the hole 112 of steam turbine cylinder 11 and the hole 122 of exhaust casing 12, and then bolt 133 is screwed in the hole 112 of steam turbine cylinder 11 through behind the hole 122 of exhaust casing 12, finally nut 132 is fixed on bolt 133.No matter adopt which kind of mode, after connection completes, one end of bolt 133 is all screwed in the hole 112 on radially outside flange 111, and its other end is fixing by nut 132.
Although in the mode of execution of Fig. 1 and Fig. 2 displaying, steam turbine cylinder 11 is to be connected by bolt 133 with exhaust casing 12, but in unshowned mode of execution, steam turbine cylinder 11 also can be connected by screw, bar or the double-screw bolt stretching in corresponding aperture 112,122 with exhaust casing 12, thereby has saved nut 132.Resilient sleeve 131 can be connected between radially inside flange 121 and nut 132.Resilient sleeve 131 can adapt to the deformation that steam turbine cylinder 11 and/or exhaust casing 12 occur because of temperature variation.Temperature in steam turbine operation environment does not have when in a substantial change, can save resilient sleeve 131.
Be to be understood that, although this specification is described according to each mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, technological scheme in each mode of execution also can, through appropriately combined, form other mode of executions that it will be appreciated by those skilled in the art that.
In this article, " schematically " expression " is served as example, example or explanation ", any diagram, the mode of execution that are described in this article " schematically " should be interpreted as a kind of preferred or have more the technological scheme of advantage.
The foregoing is only the schematic embodiment of the utility model, not in order to limit scope of the present utility model.Any those skilled in the art, is not departing from equivalent variations, modification and the combination of doing under the prerequisite of design of the present utility model and principle, all should belong to the scope of the utility model protection.
Claims (4)
1. an industrial steam turbine, is characterized in that, described industrial steam turbine comprises:
A steam turbine cylinder (11) and an exhaust casing (12), wherein said steam turbine cylinder (11) has radially outside flange (111), and described exhaust casing (12) has radially inside flange (121);
Described steam turbine cylinder (11) and described exhaust casing (12) are connected corresponding aperture (112,122) with several on described radially inside flange (121) by described radially outside flange (111).
2. industrial steam turbine according to claim 1, is characterized in that, described steam turbine cylinder (11) is connected by bolt (133), screw or the bar stretching in described corresponding aperture (112,122) with described exhaust casing (12).
3. industrial steam turbine according to claim 2, it is characterized in that, described hole (112) on described radially outside flange (111) is the threaded blind hole of tool, and described hole (122) on described radially inside flange (121) is the threaded through hole of tool not;
In described hole (112) described in one end of described bolt (133) is swirled on radially outside flange (111), and its other end is fixing by nut (132).
4. industrial steam turbine according to claim 3, is characterized in that, described in a resilient sleeve (131) is connected between radially inside flange (121) and described nut (132).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320614542.9U CN203559941U (en) | 2013-09-30 | 2013-09-30 | Industrial steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320614542.9U CN203559941U (en) | 2013-09-30 | 2013-09-30 | Industrial steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559941U true CN203559941U (en) | 2014-04-23 |
Family
ID=50509668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320614542.9U Expired - Lifetime CN203559941U (en) | 2013-09-30 | 2013-09-30 | Industrial steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559941U (en) |
-
2013
- 2013-09-30 CN CN201320614542.9U patent/CN203559941U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211202 Address after: Munich, Germany Patentee after: Siemens Energy International Address before: Munich, Germany Patentee before: SIEMENS AG |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |