CN201818580U - Fixed blade servo actuator used by TRT (Blast Furnace Top Gas Recovery Turbine Unit) - Google Patents
Fixed blade servo actuator used by TRT (Blast Furnace Top Gas Recovery Turbine Unit) Download PDFInfo
- Publication number
- CN201818580U CN201818580U CN2010202463166U CN201020246316U CN201818580U CN 201818580 U CN201818580 U CN 201818580U CN 2010202463166 U CN2010202463166 U CN 2010202463166U CN 201020246316 U CN201020246316 U CN 201020246316U CN 201818580 U CN201818580 U CN 201818580U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- lining
- servo actuator
- trt
- blade servo
- 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
Links
Images
Abstract
The utility model provides a fixed blade servo actuator used by a TRT (Blast Furnace Top Gas Recovery Turbine Unit). The fixed blade servo actuator comprises a first bush, a second bush, a piston rod and a cylinder, wherein the first and second bushes are sheathed on the piston rod; and the first bush and the piston rod as well as the second bush and the piston rod are sealed by stepseal. For the fixed blade servo actuator used by TRT, the seal between the first bush and the piston rod and between the second bush and the piston rod adopts two groups of stepseal, thus being capable of avoiding the internal leakage of the servo actuator.
Description
Technical field
The utility model relates to TRT with stator blade servo actuator field, relates in particular to a kind of stator blade servo actuator of TRT with excellent sealing device.
Background technique
TRT is the abbreviation (Blast-Furnace Toppressure Recovery Turbine Unit) of blast-furnace top gas recovery energy recovery turbine generator, it is to utilize pressure energy and the heat energy that is contained in the high outlet of still coal gas, make the turbo-expander work done, drive a kind of energy recycle device of generator for electricity generation.Thereby reaching the purpose of energy-conservation, noise reduction, environmental protection, have good economic benefits and social benefit, is modern at present international, energy-saving environmental protection device that domestic iron and steel enterprises is generally acknowledged.The TRT automatic control system is divided into 6 systems such as main coal gas system, lubricating oil system, electrohydraulic servo-controlling system (power oil system), turbine arbor movement detection systems, nitrogen-sealed system and water system.Electrohydraulic servo-controlling system in the TRT device, belongs to one of several main systems.According to the instruction of master-control room, realize the opening of TRT, stop, system's controls such as rotating speed control, furnace top pressure and process detection.Realize the function control of above system, finally will be reflected on the rotating speed of control turbine engine.Control the rotating speed of turbine engine, will control the aperture of series flow control valve or turbine stator blade.And the means of control stator blade or series flow control valve aperture are exactly electrohydraulic servo-controlling system.The precision of control system, error directly affect the control of each phase process of TRT system.This shows that status and the effect of this system in TRT is crucial.
The seal form of present servo actuator and sealing configuration are referring to Fig. 1 (a) and Fig. 1 (b): two groups " seal ring 111, seal ring 110 " sealing is adopted in the sealing between little lining and the piston rod; Do not lead between piston rod and the little lining and support link.
Sealing between Large lining and the piston rod is adopted outside two groups " seal ring 111, seal ring 110 " sealing, and it is dustproof to add wool felt; Do not lead between piston rod and the Large lining and support link.
" seal ring 111, seal ring 110 " sealing is adopted in sealing between piston rod and the cylinder body.Support link between piston rod and the cylinder body adopts the nylon spraying method.
The sealing of size lining and piston rod adopts " seal ring 111, seal ring 110 " to belong to split type sealing.Wherein the requirement of seal ring is relatively stricter, and selection requires height, processing and manufacture cost also high.Therefore, the operant level to selection and equipment and personnel requires to want high.And the sealing ring also is damaged easily in the process of assembling, and working life is shorter, and interior leakage quantity is bigger.
The model utility content
In order to solve existing technical problem in the background technique, the utility model proposes a kind of TRT stator blade servo actuator seal arrangement, two groups of these special envelope sealings are adopted in sealing between first lining and piston rod, second lining and the piston rod, servo actuator is reached in zero leak.
Technical solution of the present utility model is: a kind of TRT stator blade servo actuator, comprise first lining, second lining and piston rod and cylinder body, described first lining and second lining all are socketed on the piston rod, and its special way is: all seal by this special envelope between described first lining and piston rod, second lining and the piston rod.
Seal by Glais ring between above-mentioned piston rod and the cylinder body.
Be provided with the guiding wear ring of guiding supporting effect between the above-mentioned piston rod and first lining, piston rod and second lining and piston rod and the cylinder body.
The special envelope of between above-mentioned first lining and piston rod, second lining and the piston rod this all is two groups.
Also be provided with dust ring between above-mentioned first lining and the piston rod.
Above-mentioned guiding wear ring is one or two.
The utility model has the advantages that:
1) this special envelope is adopted in the sealing of lining and piston rod, is applicable to the high-pressure system oil cylinder of high low speed straight reciprocating motion.Because static and dynamic friction coefficient is close to be the first-selected sealing material of servo actuator, adopt twice piston rod coaxial-type seal ring, sealing effect improves greatly, can reach in zero and leak: the setting of the seal ring of this structure, anti-extrusion performance is good, dimensionally stable, not temperature influence, can not take place be stranded to press, system has buffer function for thump.And frictional force is little, and the life-span is long, does not have creeping phenomenon during startup.
2) Glais ring is adopted in the sealing between piston rod and the cylinder body, is applicable to the high-pressure system oil cylinder of straight reciprocating motion, this piston coaxial-type ring wear resistant, and allowing has bigger gap between piston and the cylinder body, has reduced difficulty of processing; Frictional force is little, phenomenon such as do not creep; Reliable working performance, long service life.
3) be provided with the guiding wear ring that guiding supports between piston rod and lining, piston and the cylinder body, the guiding wear ring has the supporting effect of accurately leading for the piston and the piston rod that move, can absorb the radial force that produces at any time, guarantee that seal element is not damaged by radial force, prolong the life-span of servo actuator; Can prevent simultaneously the Metal Contact between piston and cylinder body or piston rod and the lining, reduce frictional force, phenomenon such as can not occur during startup creeping, thus improved the stability of servo actuator work.
Description of drawings
The servo actuator sealed structural representation of Fig. 1 (a) and Fig. 1 (b) prior art;
Fig. 1 is a servo actuator structural representation of the present utility model;
Fig. 2 is the sectional drawing of this special envelope in the utility model;
Fig. 4 is the sectional drawing of Glais ring in the utility model;
The special envelope of 1-cylinder body, 2-first lining (Large lining), 3-second lining (little lining), 4-piston rod, 5-Si, 6-Glais ring, 7-dust ring, the 8-wear ring that leads;
Embodiment
Referring to Fig. 2, the TRT that the utility model proposes stator blade servo actuator comprises cylinder body 1, first lining 2, second lining 3, piston rod 4, this special envelope 5, Glais ring 6, dust ring 7, guiding wear ring 8; First lining 2 and second lining 3 all seal with this special envelope 5 respectively with the joint of piston rod 4, piston rod 4 seals by Glais ring 6 with the joint of cylinder body 1, Si Te envelope 5 is two groups, seal simultaneously, be provided with the guiding wear ring 8 that guiding supports between first lining 2 and second lining 3 and the piston rod 4, guiding wear ring 8 has the supporting effect of accurately leading for the piston and the piston rod that move, can absorb the radial force that produces at any time, guarantee that seal element is not damaged by radial force, prolong the life-span of servo actuator.Can prevent simultaneously the Metal Contact between piston and cylinder body or piston rod and the lining, reduce frictional force, phenomenon such as can not occur during startup creeping, thus improved the stability of servo actuator work.
Referring to Fig. 3, TRT of the present utility model uses in the stator blade servo actuator at first lining 2, the special envelope of this that seals between second lining 3 and the piston rod 45 is made up of an O RunddichtringO 10 and a seal ring 11, the special envelope 5 of this that adopts in the utility model is that piston rod seals with this spy, be applicable to the high-pressure system oil cylinder of high low speed straight reciprocating motion, because static and dynamic friction coefficient is close to be the first-selected sealing material of servo actuator, the utility model adopts this special envelope 5 of twice can reach zero interior the leakage, and this special envelope 5 is used in servo actuator, it is good that the Si Te envelope itself has an anti-extrusion performance, dimensionally stable is temperature influence not, can not take place to be stranded and press, system has buffer function for thump, frictional force is little, the characteristics that do not have creeping phenomenon during startup, therefore, the efficiency of servo actuator is more stable.
Referring to Fig. 4, TRT of the present utility model is with the Glais ring 6 that seals between piston rod 4 and cylinder body 1 in the stator blade servo actuator, form by an O RunddichtringO 12 and a seal ring 13, O RunddichtringO 12 application of forces, Glais ring 6 is the two-way ram sealing, the servo actuator with this seal arrangement is wear-resistant, allowing has bigger gap between piston and the cylinder body, reduced difficulty of processing, frictional force is little, phenomenon such as do not creep.
Claims (6)
1. TRT stator blade servo actuator, comprise first lining, second lining and piston rod and cylinder body, described first lining and second lining all are socketed on the piston rod, it is characterized in that: all pass through this special envelope sealing between described first lining and piston rod, second lining and the piston rod.
2. TRT according to claim 1 is characterized in that: seal by Glais ring between described piston rod and the cylinder body with stator blade servo actuator seal arrangement.
3. TRT according to claim 1 and 2 is characterized in that: the guiding wear ring that has been provided with the guiding supporting effect between the described piston rod and first lining, piston rod and second lining and piston rod and the cylinder body with stator blade servo actuator seal arrangement.
4. TRT according to claim 3 stator blade servo actuator seal arrangement is characterized in that: the special envelope of this between described first lining and piston rod, second lining and the piston rod all is two groups.
5. TRT according to claim 4 is characterized in that: also be provided with dust ring between described first lining and the piston rod with stator blade servo actuator seal arrangement.
6. TRT according to claim 5 stator blade servo actuator seal arrangement, it is characterized in that: described guiding wear ring is one or two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202463166U CN201818580U (en) | 2010-07-02 | 2010-07-02 | Fixed blade servo actuator used by TRT (Blast Furnace Top Gas Recovery Turbine Unit) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202463166U CN201818580U (en) | 2010-07-02 | 2010-07-02 | Fixed blade servo actuator used by TRT (Blast Furnace Top Gas Recovery Turbine Unit) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818580U true CN201818580U (en) | 2011-05-04 |
Family
ID=43916537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202463166U Expired - Fee Related CN201818580U (en) | 2010-07-02 | 2010-07-02 | Fixed blade servo actuator used by TRT (Blast Furnace Top Gas Recovery Turbine Unit) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818580U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762962A (en) * | 2017-03-07 | 2017-05-31 | 长春机械科学研究院有限公司 | A kind of linear actuator |
| CN114278385A (en) * | 2021-12-16 | 2022-04-05 | 北京航空航天大学 | Novel turbine disc cavity heat insulation structure with heat shield and air interlayer |
-
2010
- 2010-07-02 CN CN2010202463166U patent/CN201818580U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762962A (en) * | 2017-03-07 | 2017-05-31 | 长春机械科学研究院有限公司 | A kind of linear actuator |
| CN114278385A (en) * | 2021-12-16 | 2022-04-05 | 北京航空航天大学 | Novel turbine disc cavity heat insulation structure with heat shield and air interlayer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104896101B (en) | End face gas film sealing structure for bump-type foil | |
| CN204692585U (en) | A kind of ripple foil-type paillon foil gas film face seal structure | |
| CN201218254Y (en) | Hydraulic cylinder of large excavator | |
| CN111828100A (en) | Serial dry gas sealing device for industrial steam turbine | |
| CN201818580U (en) | Fixed blade servo actuator used by TRT (Blast Furnace Top Gas Recovery Turbine Unit) | |
| CN104895827A (en) | Air compressor with ultrasonic bearings | |
| CN204705173U (en) | Seal of rotary kiln structure | |
| CN111810253A (en) | Double-end-face dry air sealing device for industrial steam turbine | |
| CN205297656U (en) | Combined type atmoseal device | |
| CN201433872Y (en) | Dry gas seal for ammonia compressor | |
| CN205315713U (en) | Rotary kiln hood's high -efficient sealing device | |
| CN205479678U (en) | Movable fit leakage control ware | |
| CN101413425A (en) | Intermediate body assembly for turbocharger | |
| CN203655641U (en) | Shaft sealing structure of water vapor screw rod compressor | |
| CN201347914Y (en) | Hydraulic cylinder with floating clearance rod seal structure | |
| CN203703128U (en) | Rotary kiln air channel sealing device and porous rotary kiln equipped with the same | |
| CN206801847U (en) | A kind of piston that can improve nuclear submarine rudder arrangement servo variable pump sealing property | |
| CN201310388Y (en) | Lubricating gasket used between supporting surfaces of low-pressure internal and external cylinders of steam turbine | |
| CN212959341U (en) | Built-in external device that changes of turbine cylinder piston rod | |
| CN201434080Y (en) | Container circumferential synchronous displacement sealing structure | |
| CN201025075Y (en) | Low diameter gas sealer for steamship engine | |
| CN219412917U (en) | Mechanical piston ring of screw vacuum pump | |
| CN205779694U (en) | A kind of household electrical appliance rolling rotor compressor | |
| CN215488254U (en) | Multi-channel air guide device for rotary moving part | |
| CN202812206U (en) | Novel flexible sheet tooth sealing ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XI'AN HUANIC AERO TECHNOLOGY CORPORATION Free format text: FORMER NAME: XI'AN HUANIC AERO-HYDRAULIC CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710075 Xi'an high tech Zone, Shaanxi Jin Road, No. 67 Patentee after: Xi'an Huake Aviation Technology Co.,Ltd. Address before: 710075 Xi'an high tech Zone, Shaanxi Jin Road, No. 67 Patentee before: Xi'an Huake Aircraft Hydraulic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20180702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |