CN206302103U - The steam turbine thrust bearing shoe valve and bearing shell leak-proof arrangement of built-in temperature probe - Google Patents
The steam turbine thrust bearing shoe valve and bearing shell leak-proof arrangement of built-in temperature probe Download PDFInfo
- Publication number
- CN206302103U CN206302103U CN201621329870.4U CN201621329870U CN206302103U CN 206302103 U CN206302103 U CN 206302103U CN 201621329870 U CN201621329870 U CN 201621329870U CN 206302103 U CN206302103 U CN 206302103U
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- Prior art keywords
- steam turbine
- temperature probe
- bunch
- cables
- temperature
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Abstract
The utility model discloses the steam turbine thrust bearing shoe valve and bearing shell leak-proof arrangement of a kind of built-in temperature probe,Lubricating oil inside steam turbine is penetrated into connecting terminal box and ground along wire,Cause severe contamination,Cannot thorough solve problem by way of smearing fluid sealant,After improvement,The position plugged into temperature probe and bunch of cables uses the technique colded pressing,Segmentation extrudes the dead ring of sealing,Effect with multistage oil resistance,Secondly drawn from same outlet after bunch of cables collects on wiring sleeve,Individually sealed,Sealing effectiveness can be guaranteed,The present apparatus can effectively solve the problems, such as that turbo-engine lube leaks outside,Eliminate traditional sealant sealing mode simultaneously,Cold press technique is employed in temperature lead,Solve wire inside Leakage,Extend the service life of temperature element,And it is easy and safe to operate,Technological ability is good.
Description
Technical field
The utility model is related to a kind of Turbine seal structure, and the lubricating oil for being especially adapted for use in prevent leakage is visited to thermometric
The environment that head is adversely affected.
Background technology
The structure type of steam turbine is：High pressure, single cylinder, singly draw gas, impulse turbine, regulating system uses digital electro-hydraulic
Regulating system, automatization level is high, and thermoelectricity load is also high from whole property, and it can realize raising speed, coordinates electrically grid-connected, spatial load forecasting,
Thermic load of drawing gas control and other auxiliary controls；Steam turbine head inside measuring point has 10 thrust pad temperature points, before 1
Journal bearing pad temperature measuring point, 5 speed probe measuring points, 2 axial displacement measuring points, 1 eccentric measuring point etc. are total to be had
More than 50 binding posts, these measuring points are the key parameters of steam turbine operation；Due to component lead need to be passed through outside steam turbine
Terminal box is sent to DCS (as shown in Fig. 1, Fig. 1 is steam turbine external cabling box internal wiring terminal and component lead).For a long time
Operation causes lubricating oil osmotic component lead wire insulation crust inside head to outside head, causing at head terminal box daily all
Substantial amounts of lubricating oil can be oozed out, operations staff can regularly clear up the lubricating oil for oozing out, and some lubricating oil flows to vapour along ground
Speed governing oil-piping under turbine head, on the oil-piping and main steam line of automatic main throttle valve, because main steam pipe channel temp is reachable
Spent 400 more, drop in the lubricating oil above pipeline as cleared up not in time, it is likely that cause oil-piping to catch fire, to the safety fortune of unit
Row causes very big hidden danger.
In order to improve the service life of temperature probe and the reliability of work, the oil leakage of steam turbine internal lubrication is reduced to surveying
The influence of the working condition and use environment of temperature probe, technical staff is carried out on the method and apparatus for prevent oil leak
Constantly improve.In existing anti-oil leakage device, the treatment technology document influenceed by oil leak for temperature control element has：
1st, patent document【Application number：201020516250.8】Disclose a kind of " steam turbine head measuring cell oil-leakage-prevention
Device ", its, including steam turbine head terminal box, sealing is installed with elbow, one end of elbow at steam turbine head terminal box
It is connected with aviation plug；Steam turbine internal sensor components lead is extracted from elbow, one end sealing of elbow is fixed on vapour
Outside turbine head, the other end is welded on aviation plug.The device does not solve root problem, because while elbow is and connects
Line box seamless welding together, but terminal box is still still connected with the junction of head using common sealing means
, therefore the hidden danger of oil leak is equally existed, secondly the lubricating oil inside head can be final or can shadow via the upward cross flow of elbow
Ring the work of sensor.
2nd, patent document【Application number：201610015432.9】Disclose a kind of " radiating of energy-saving oil immersed transformer
Pipe anti-oil leakage mechanism ", including, radiating tube is included, radiating tube is separately installed with electricity at the two ends being connected with transformer-cabinet
Magnet valve, is provided with flow sensor in radiating tube, on the one hand flow sensor is electrically connected with the solenoid valve respectively by controller, separately
On the one hand it is electrically connected with alarm.The device is mainly by way of closed electromagnetic valve when blocking oil leak influences transformation
Device normal work, simple structure, but do not consider to block rear transformer still in the needs of problems to lubricating oil that works, therefore
It need to be improved.
In sum, the device of influence of the existing oil-leakage-prevention to sensor is primarily present that mode is single, and solve problem is inadequate
The defect such as thorough.
The content of the invention
The utility model provides a kind of the steam turbine thrust bearing shoe valve and bearing shell leak-proof arrangement of built-in temperature probe, solves vapour
The problem of turbine lubricating oil leakage, while eliminating traditional sealant sealing mode, employs skill of colding pressing in temperature lead
Art, solves wire inside Leakage, extends the service life of temperature probe.
The steam turbine thrust bearing shoe valve and bearing shell leakproof oil tech of a kind of built-in temperature probe, including temperature probe and cable converge
Collection part, is provided with temperature probe near steam turbine thrust bearing shoe valve and bearing shell, and the temperature probe is the end group of temperature measurement component
Into part, temperature probe is connected by bunch of cables with the junction box of steam turbine, and bunch of cables one end with steam turbine
Need to collect part through cable before terminal box connection, insulating protective layer is wrapped in the outer surface of bunch of cables, and exhausted
Edge protective layer is connected with the connection of bunch of cables by oil resistance component.
The temperature measurement component includes temperature probe, dead ring, stainless steel sheath, insulating protective layer and bunch of cables and taper
Blocking jacket, the installation site of temperature probe near steam turbine thrust bearing shoe valve and bearing shell, one end of stainless steel sheath and temperature probe
One end it is nested, and temperature probe is in internal layer, and dead ring is then connected both by the technique of cold-working, dead ring interruption row
Cloth, bunch of cables is connected with temperature probe, and insulating protective layer is wrapped in the outer surface of bunch of cables, and the end of insulating protective layer with
The end of bunch of cables is connected using taper blocking jacket.
The cable collects part and includes locking head, water joint, outgoing cable and wiring sleeve and hex nut, lock
Tight head is connected with one end of wiring sleeve, and is fastened by hex nut, and outgoing cable is laid in the other end of wiring sleeve,
And it is mounted with water joint with plugging into out for sleeve of wiring in outgoing cable.
The taper blocking jacket uses quality of rubber materials, is susceptible to deformation, and be coated with glue in its one side.
Remarkable result of the invention is：
1st, the afterbody of cable is significantly more efficient to solve core capillary Leakage using oil resistance section design, while element
Add that screw thread coupling, signal transmission be reliable, stabilization in the middle of lead, not only facilitate repair and maintenance, while oil resistance can also be played
Effect, prevent the progressive step of oil from penetrating into cable rear end.
2nd, this structure employs Wire sheath and insulating layer material, with excellent oil resistant, corrosion-resistant and high-temperature resistant and Nai Kai
Fragility energy, thorough solution wire is immersed in high temperature oil to be corroded and flowed by oil after high temperature and impacts cracking phenomena for a long time.
3rd, the present apparatus solves sensor fairlead Exterior cable oil leakage problem, and installs and overhaul more convenient, and this is not only
Maintenance cost is saved, maintenance workload has been decreased, specific size can be customized according to the size at scene.
Brief description of the drawings
Fig. 1 is the built-in temperature measurement component structural representation of steam turbine.
Fig. 2 is the schematic diagram of the cold-working hermetic unit at the utility model part A.
Fig. 3 is the enlarged diagram of oil resistance component at the utility model part B.
Fig. 4 is that the cable that the utility model is used collects part structural representation.
Wherein：1- temperature probes；2- insulating protective layers；3- bunchs of cables；4- dead rings；5- stainless steel sheaths；6- tapers hinder
Oil jacket;7- locking heads；8- water joints；9- outgoing cables；10- connects up sleeve；11- hex nuts.
Specific embodiment
Illustrated shown in compares figure 1-4, the temperature probe 1 that this structure is used is used for inside on-line monitoring steam turbine
Thrust bearing shoe valve and the temperature change that goes out of bearing shell, in order to prevent the lubricating oil inside steam turbine along the seepage flow of bunch of cables 3 to steam turbine
At outside terminal box electric elements are produced with harmful effect, therefore using needing to carry out necessary early-stage preparations before this technology
Work.Bunch of cables 3 is connected with temperature probe 1 first, then by stainless steel sheath 5（Its internal diameter is bigger than temperature probe）From thermometric
One end of probe 1 moves to the connection of temperature probe 1 and bunch of cables 3 after passing through, be pressed in dead ring 4 using cold-press process
The outer surface of stainless steel sheath 5, now stainless steel sheath 5 deform, it finally tightens together with temperature probe 1, in electricity
Insulating protective layer 2 is enclosed with the outer surface of cable beam 3, the other end and the connection of insulating protective layer 2 of bunch of cables 3 form one certainly
Right step, now wraps up connection by the side that taper blocking jacket 6 scribbles glue, and lubricating oil just cannot be from insulating protective layer 2
Portion is oozed out, and so far completes preparatory work before installation.
When using, the temperature probe 1 for having completed early stage installation is worn from the water joint 8 for being installed on wiring sleeve 10 one end
Cross, then drawn from the inside of locking head 7, last temperature probe 1 is installed near the thrust bearing shoe valve inside steam turbine and bearing shell, is locked
Tight first 5 are fixed on the outside wall surface of steam turbine, and are locked by hex nut 11, and the other end of outgoing cable 9 is then connected to and connects
At line box.
Claims (4)
1. the steam turbine thrust bearing shoe valve and bearing shell leak-proof arrangement of a kind of built-in temperature element, including temperature probe（1）And cable
Collect part, it is characterised in that：Temperature probe is installed near steam turbine thrust bearing shoe valve and bearing shell（1）, the temperature probe（1）
It is the end part of temperature measurement component, temperature probe（1）By bunch of cables（3）It is connected with the junction box of steam turbine, and
And bunch of cables（3）One end needed to collect part through cable before being connected with steam turbine terminal box, in bunch of cables（3）It is outer
Surface is wrapped in insulating protective layer（2）, and in insulating protective layer（2）With bunch of cables（3）Connection pass through taper blocking jacket
（6）Connection.
2. the steam turbine thrust bearing shoe valve and bearing shell leak-proof arrangement of built-in temperature element according to claim 1, its feature exists
In：The temperature measurement component includes temperature probe（1）, dead ring（4）, stainless steel sheath（5）, insulating protective layer（2）And bunch of cables
（3）And taper blocking jacket（6）, temperature probe（1）Installation site near steam turbine thrust bearing shoe valve and bearing shell, stainless steel sheath
（5）One end and temperature probe（1）One end it is nested, and temperature probe（1）In internal layer, dead ring（4）Then by cold-working
Technique connects both, dead ring（4）Interruption arrangement, bunch of cables（3）With temperature probe（1）Connection, insulating protective layer（2）Parcel
In bunch of cables（3）Outer surface, and insulating protective layer（2）End and bunch of cables（3）End use taper blocking jacket（6）
Connection.
3. the steam turbine thrust bearing shoe valve and bearing shell leak-proof arrangement of built-in temperature element according to claim 1, its feature exists
In：The cable collects part and includes locking head（7）, water joint（8）, outgoing cable（9）With wiring sleeve（10）And six
Angle nut（11）, locking head（7）With wiring sleeve（10）One end connection, and by hex nut（11）Fastening, in wiring
Sleeve（10）The other end lay outgoing cable（9）, and in outgoing cable（9）With wiring sleeve（10）Plug into out and be mounted with
Water joint（8）.
4. the steam turbine thrust bearing shoe valve and bearing shell leak-proof arrangement of built-in temperature element according to claim 2, its feature exists
In：The taper blocking jacket（6）Using quality of rubber materials, deformation is susceptible to, and glue is coated with its one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621329870.4U CN206302103U (en) | 2016-12-07 | 2016-12-07 | The steam turbine thrust bearing shoe valve and bearing shell leak-proof arrangement of built-in temperature probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621329870.4U CN206302103U (en) | 2016-12-07 | 2016-12-07 | The steam turbine thrust bearing shoe valve and bearing shell leak-proof arrangement of built-in temperature probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206302103U true CN206302103U (en) | 2017-07-04 |
Family
ID=59212689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621329870.4U Expired - Fee Related CN206302103U (en) | 2016-12-07 | 2016-12-07 | The steam turbine thrust bearing shoe valve and bearing shell leak-proof arrangement of built-in temperature probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206302103U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631810A (en) * | 2017-10-25 | 2018-01-26 | 江苏杰创科技有限公司 | A kind of pump housing bearing shell oil resistance thermometer |
| CN109616984A (en) * | 2018-12-11 | 2019-04-12 | 福建华电可门发电有限公司 | A kind of warm signal wire outlet anti-oil leakage device of steam turbine watt |
| CN109616984B (en) * | 2018-12-11 | 2024-05-10 | 福建华电可门发电有限公司 | Outlet oil leakage prevention device for tile temperature signal line of steam turbine |
-
2016
- 2016-12-07 CN CN201621329870.4U patent/CN206302103U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631810A (en) * | 2017-10-25 | 2018-01-26 | 江苏杰创科技有限公司 | A kind of pump housing bearing shell oil resistance thermometer |
| CN109616984A (en) * | 2018-12-11 | 2019-04-12 | 福建华电可门发电有限公司 | A kind of warm signal wire outlet anti-oil leakage device of steam turbine watt |
| CN109616984B (en) * | 2018-12-11 | 2024-05-10 | 福建华电可门发电有限公司 | Outlet oil leakage prevention device for tile temperature signal line of steam turbine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 Termination date: 20171207 |