CN207892660U - A kind of gland sealing device for steam turbine - Google Patents
A kind of gland sealing device for steam turbine Download PDFInfo
- Publication number
- CN207892660U CN207892660U CN201820262926.1U CN201820262926U CN207892660U CN 207892660 U CN207892660 U CN 207892660U CN 201820262926 U CN201820262926 U CN 201820262926U CN 207892660 U CN207892660 U CN 207892660U
- Authority
- CN
- China
- Prior art keywords
- gland
- packing lid
- steam turbine
- sealing device
- boss
- 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.)
- Expired - Fee Related
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- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a kind of gland sealing device for steam turbine,Including shell,The case inside is connected with packing lid and lower packing lid,And the upper packing lid is located at right over the lower packing lid,It is embedded with T-type groove on the inside of the upper packing lid and lower packing lid,Multiple gland blocks are embedded in the T-type groove,And the gland blocks are arranged in order setting,The gland blocks outer surface is equipped with arc groove,It is connected between the arc groove and T-type groove and holds out against shrapnel,And the shrapnel that holds out against is connected in the T-type groove,This kind of gland sealing device for steam turbine,It is simple and compact for structure,It is reliable and stable,It is easy to disassemble,Packing effect is good,By the structure for readjusting packing,Increase the airtight performance of packing,Pass through Reasonable Orientation steam baffle position,Thoroughly solves front and back gland-packing leakage phenomenon,And turbine oil emulsification problem,Improve the safety and reliability of steam turbine operation,It is with a wide range of applications.
Description
Technical field
The utility model is related to steam turbine equipment technical field, specially a kind of gland sealing device for steam turbine.
Background technology
Steam turbine is also referred to as steam turbine engine, is a kind of rotary steam power plant, and high temperature and high pressure steam passes through solid
Nozzle is determined as being ejected on blade after the air-flow accelerated, makes the rotor rotation equipped with blade row, while external work done, steam turbine
It is the capital equipment of modern thermal power plant, is also used in metallurgical industry, chemical industry, ship's powerplant, turbine steam seal
Device is most important for steam turbine operation, and existing gland sealing device for steam turbine, the reason of because of design and installation, causes steamer
Front and back gland leak-off is serious when machine is run, and causes turbine oil long-term existence water inlet emulsion, need to open oil filter oil strain for a long time
It is with the oil and effect that improve set lubricant oil undesirable, steam turbine major safety risks are caused, while causing gas leakage, oil strain
Economic loss much cannot be satisfied requirement of the current people to the product in this way.
So how to design a kind of gland sealing device for steam turbine, becoming us will currently solve the problems, such as.
Utility model content
It is simple and compact for structure the purpose of this utility model is to provide a kind of gland sealing device for steam turbine, it is reliable and stable, it is convenient for
Dismounting, packing effect is good, by readjusting the structure of packing, increases the airtight performance of packing, passes through Reasonable Orientation steam
Baffle position thoroughly solves front and back gland-packing leakage phenomenon and turbine oil emulsification problem, improves the safety of steam turbine operation
Property and reliability, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions：A kind of gland sealing device for steam turbine, including shell
Body, the case inside is connected with packing lid and lower packing lid, and the upper packing lid is located at right over the lower packing lid,
It is embedded with T-type groove on the inside of the upper packing lid and lower packing lid, multiple gland blocks, and institute are embedded in the T-type groove
It states gland blocks and is arranged in order setting, the gland blocks outer surface is equipped with arc groove, is connected between the arc groove and T-type groove
Shrapnel is held out against, and the shrapnel that holds out against is connected in the T-type groove, and shaft is rotatably connected between the gland blocks, and
The shaft level is set with steam baffle, and the steam baffle is connected on the right side of the shell on the left of the shaft
The upper packing lid is uniformly provided with multiple labyrinth ring teeth, and the labyrinth ring on the left of lower packing lid on the inside of the steam baffle
Tooth is fitted and connected in the shaft outer surface, and the shaft outer surface is uniformly socketed with multiple boss, and the boss is tight
It is close to be connected on the inside of the gland blocks, it is connected with reinforcing ring on the right side of the housing cavity, and the reinforcing ring is covered on described
Packing lid and lower packing lid right side.
Further, it is arc-shaped shape on the inside of the gland blocks, and the gland blocks are covered in two outside the boss.
Further, the arc groove is set as and holds out against the structure that shrapnel matches.
Further, the shrapnel that holds out against is set as circular arc concave structure, and the shrapnel both ends that hold out against are connected to the T-type
On the inside of groove.
Further, it is arranged in a mutually vertical manner between the steam baffle and shaft.
Further, the labyrinth ring tooth is set as the structure to match with boss, and between the labyrinth ring tooth and boss
It is cross-linked.
Further, the boss is in annulus shape, and the boss sets with shaft and is integrally formed structures.
Compared with prior art, the utility model has the beneficial effects that：This kind of gland sealing device for steam turbine, by device sheet
The many-sided of body improves, and simple and compact for structure, reliable and stable, easy to disassemble, packing effect is good, by the knot for readjusting packing
Structure increases the airtight performance of packing, by Reasonable Orientation steam baffle position, thoroughly solves front and back gland-packing leakage phenomenon,
And turbine oil emulsification problem, improve the safety and reliability of steam turbine operation, and prevented gas leakage, oil strain economic damage
It loses, the amount of labour of employee is alleviated, by the elastic force for holding out against shrapnel so that gland blocks are fitted tightly over shaft periphery always, carry
High packing effect can increase the stability of upper packing lid and lower packing lid, improve using the longevity by being provided with reinforcing ring
Life, so this kind of gland sealing device for steam turbine has wide application market.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel specific implementation mode for explaining the utility model, does not constitute limitations of the present invention together.
Fig. 1 is the global sections structural schematic diagram of the utility model；
Fig. 2 is the gland blocks distributed architecture schematic diagram of the utility model；
Fig. 3 is the steam baffle side structure schematic diagram of the utility model；
Figure label：1, shell；2, upper packing lid；3, lower packing lid；4, T-type groove；5, gland blocks；6, arc groove；7、
Hold out against shrapnel；8, shaft；9, steam baffle；10, labyrinth ring tooth；11, boss；12, reinforcing ring.
Specific implementation mode
The utility model is further described With reference to embodiment, wherein being given for example only property of attached drawing
Illustrate, expression is only schematic diagram rather than pictorial diagram, should not be understood as the limitation to this patent, in order to which this reality is better described
With novel specific implementation mode, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product,
It will be understood by those skilled in the art that the omitting of some known structures and their instructions in the attached drawings are understandable, it is based on this reality
With the specific implementation mode in novel, institute obtained by those of ordinary skill in the art without making creative efforts
There are other specific implementation modes, shall fall within the protection scope of the present invention.
- Fig. 3 is please referred to Fig.1, the utility model provides a kind of technical solution：A kind of gland sealing device for steam turbine, including shell
1,1 inside of the shell is connected with packing lid 2 and lower packing lid 3, and the upper packing lid 2 is being located at the lower packing lid 3 just
Top, the upper packing lid 2 are embedded with T-type groove 4 with 3 inside of lower packing lid, multiple vapour are embedded in the T-type groove 4
Block 5 is sealed, and the gland blocks 5 are arranged in order setting, 5 outer surface of the gland blocks is equipped with arc groove 6, the arc groove 6 and T
Be connected between type groove 4 and hold out against shrapnel 7, and the shrapnel 7 that holds out against is connected in the T-type groove 4, the gland blocks 5 it
Between be rotatably connected to shaft 8, and the shaft 8 is horizontal through 1 right side of the shell, and 8 left side of the shaft is set with steam gear
Plate 9, and the steam baffle 9 is connected to the upper packing lid 2 and 3 left side of lower packing lid, 9 inside of the steam baffle is uniformly set
There are multiple labyrinth ring teeth 10, and the labyrinth ring tooth 10 is fitted and connected in 8 outer surface of the shaft, 8 outside table of the shaft
Face is uniformly socketed with multiple boss 11, and the boss 11 is close-coupled at 5 inside of the gland blocks, and 1 inner cavity of the shell is right
Side is connected with reinforcing ring 12, and the reinforcing ring 12 is covered in the upper packing lid 2 and 3 right side of lower packing lid, structure described above
At the basic structure of the utility model.
More specifically, 5 inside of the gland blocks is arc-shaped shape, and the gland blocks 5 are covered in outside two boss 11
Side can increase the contact area of gland blocks 5 and shaft 8, increase the airtight performance of packing, and the arc groove 6 is set as and pushes up
The structure that tight shrapnel 7 matches, passes through the elastic force for holding out against shrapnel 7 so that gland blocks 5 are fitted tightly over always outside shaft 8
Improve packing effect in week, the shrapnel 7 that holds out against is set as circular arc concave structure, and it is described hold out against 7 both ends of shrapnel be connected to it is described
The inside of T-type groove 4, enables to hold out against shrapnel 7 and is fixedly secured in 4 inside of T-type groove, ensure that the elastic force for holding out against shrapnel 7 fills
Point, it is arranged in a mutually vertical manner between the steam baffle 9 and shaft 8, steam baffle 9 is enabled to be fitted tightly over packing lid 2
With the side of lower packing lid 3, the labyrinth ring tooth 10 is set as the structure to match with boss 11, and the labyrinth ring tooth 10 with it is convex
It is cross-linked between platform 11 so that can be tightly connected between steam baffle 9 and shaft 8, avoid the hair of gland-packing leakage phenomenon
It is raw, prevented gas leakage, oil strain economic loss, the boss 11 is in annulus shape, and the boss 11 is set as one with shaft 8
Molding structure enables to shaft 8 to be fitted closely with gland blocks 5, steam baffle 9, simultaneously by being provided with the boss 11
Reduce friction so that the operating of shaft 8 is more smooth, improves the safety and reliability of steam turbine operation.
The utility model improve in：This kind of gland sealing device for steam turbine, when in use, by readjusting the structure of packing,
The airtight performance for increasing packing passes through the design of upper packing lid 2 and lower packing lid 3 so that and it is compact-sized, it is easy to disassemble, lead to
Cross in upper packing lid 2 and the inside of lower packing lid 3 setting T-type groove 4 so that gland blocks 5 be mounted so as to it is more firm, by holding out against shrapnel
7 elastic force effect so that gland blocks 5 are fitted tightly over 8 periphery of shaft always, and gland blocks 5 are covered in two 11 outsides of boss, energy
The contact area for enough increasing gland blocks 5 and shaft 8, increases the airtight performance of packing, improves packing effect, pass through Rational Determination
The position of position steam baffle 9, and by being cross-linked between labyrinth ring tooth 10 and boss 11 so that steam baffle 9 and shaft 8 it
Between be tightly connected, thoroughly solve front and back gland-packing leakage phenomenon and turbine oil emulsification problem, improve the peace of steam turbine operation
Full property and reliability, and prevented gas leakage, oil strain economic loss, by being connected in upper packing lid 2 and lower 3 side of packing lid
Reinforcing ring 12 can increase the stabilized soil pavement of upper packing lid 2 and lower packing lid 3, improve service life.
While there has been shown and described that specific embodiment of the present utility model, for those of ordinary skill in the art
For, it is possible to understand that do not depart from the principles of the present invention and spirit in the case of, can to these specific implementation modes into
The a variety of change, modification, replacement and modification of row, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of gland sealing device for steam turbine, including shell（1）, it is characterised in that：The shell（1）Inside is connected with packing lid
（2）With lower packing lid（3）, and the upper packing lid（2）Positioned at the lower packing lid（3）Surface, the upper packing lid（2）With
Lower packing lid（3）Inside is embedded with T-type groove（4）, the T-type groove（4）It is interior to be embedded with multiple gland blocks（5）, and it is described
Gland blocks（5）It is arranged in order setting, the gland blocks（5）Outer surface is equipped with arc groove（6）, the arc groove（6）It is recessed with T-type
Slot（4）Between be connected with and hold out against shrapnel（7）, and described hold out against shrapnel（7）It is connected to the T-type groove（4）It is interior, the gland blocks
（5）Between be rotatably connected to shaft（8）, and the shaft（8）Level runs through the shell（1）Right side, the shaft（8）Left side
It is set with steam baffle（9）, and the steam baffle（9）It is connected to the upper packing lid（2）With lower packing lid（3）Left side, institute
State steam baffle（9）Inside is uniformly provided with multiple labyrinth ring teeth（10）, and the labyrinth ring tooth（10）It is fitted and connected at described turn
Axis（8）Outer surface, the shaft（8）Outer surface is uniformly socketed with multiple boss（11）, and the boss（11）Closely connect
It is connected on the gland blocks（5）Inside, the shell（1）It is connected with reinforcing ring on the right side of inner cavity（12）, and the reinforcing ring（12）It covers
It covers in the upper packing lid（2）With lower packing lid（3）Right side.
2. a kind of gland sealing device for steam turbine according to claim 1, it is characterised in that：The gland blocks（5）Inside is in circle
Arc shape, and the gland blocks（5）It is covered in two boss（11）Outside.
3. a kind of gland sealing device for steam turbine according to claim 1, it is characterised in that：The arc groove（6）It is set as and pushes up
Tight shrapnel（7）The structure to match.
4. a kind of gland sealing device for steam turbine according to claim 1, it is characterised in that：It is described to hold out against shrapnel（7）It is set as round
Arc concave structure, and described hold out against shrapnel（7）Both ends are connected to the T-type groove（4）Inside.
5. a kind of gland sealing device for steam turbine according to claim 1, it is characterised in that：The steam baffle（9）With shaft
（8）Between be arranged in a mutually vertical manner.
6. a kind of gland sealing device for steam turbine according to claim 1, it is characterised in that：The labyrinth ring tooth（10）Be set as with
Boss（11）The structure to match, and the labyrinth ring tooth（10）With boss（11）Between be cross-linked.
7. a kind of gland sealing device for steam turbine according to claim 1, it is characterised in that：The boss（11）In circular ring shape
Shape, and the boss（11）With shaft（8）If being integrally formed structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820262926.1U CN207892660U (en) | 2018-02-23 | 2018-02-23 | A kind of gland sealing device for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820262926.1U CN207892660U (en) | 2018-02-23 | 2018-02-23 | A kind of gland sealing device for steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207892660U true CN207892660U (en) | 2018-09-21 |
Family
ID=63540543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820262926.1U Expired - Fee Related CN207892660U (en) | 2018-02-23 | 2018-02-23 | A kind of gland sealing device for steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207892660U (en) |
-
2018
- 2018-02-23 CN CN201820262926.1U patent/CN207892660U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |