CN207180865U - A kind of Steam Turbine Vibration detection means - Google Patents
A kind of Steam Turbine Vibration detection means Download PDFInfo
- Publication number
- CN207180865U CN207180865U CN201721143887.5U CN201721143887U CN207180865U CN 207180865 U CN207180865 U CN 207180865U CN 201721143887 U CN201721143887 U CN 201721143887U CN 207180865 U CN207180865 U CN 207180865U
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- Prior art keywords
- steam turbine
- vibration detection
- detection means
- connector
- turbine vibration
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Abstract
The utility model discloses a kind of Steam Turbine Vibration detection means, including probe and the cable of probe connection, the sleeve pipe for being wrapped in probe and cable connection, the Steam Turbine Vibration detection means also to include protection location；The protection location includes the inner and outer tubes being coaxially socketed; its be provided at both ends with it is being tightly connected jointly with inner and outer tubes end, in lead to the first connector and the second connector; first connector is socketed in described sleeve pipe; cable is placed in internal tube; probe stretches out in protection location; cavity between inner tube and outer tube is provided with ripple built with powdered heat-barrier material in inner and outer tubes.The use environment of technical scheme equipment in the present embodiment is basic premise, has stronger ambient adaptability.
Description
Technical field
The utility model belongs to Thermal Equipment field, specifically, is related to a kind of Steam Turbine Vibration detection means.
Background technology
In the prior art, steam turbine is respectively arranged with rotary part, i.e. rotor.It is micro- according to the characteristic of rotor-bearing-basic system
Small vibration is inevitable, and Oscillation Amplitude belongs to normal vibration no more than required standard.Amplitude ratio is former during unit rotates
It is exactly greatly abnormal vibrations to have horizontal.Abnormal vibrations can aggravate sound partial frictional, and big axle can be damaged when situation is serious, be formed pernicious
Circulation, directly affects equipment safety operation state.Therefore, the measurement to steam turbine vibrations of rotating components and detection are equipment fortune
The essential means of row.General Oscillation measuring point is arranged at turbine bearing pad, because vibration detection device is arranged on steam turbine
Outside cylinder, close to the axle envelope of steam turbine, if shaft gland steam leakage is bigger than normal in operation, vibration detection device can be made to be in high-temperature region
Domain works, and influences the method that the measurement accuracy of vibration detection device and service life are administered at present and is to try to reduce gland packing leakage
Amount, and the method for reducing shaft gland steam leakage is adjustment axle envelope gap, this operation could only be completed when steam turbine takes off cylinder so that
The phenomenon of gland packing leakage increase occurs in steam turbine operation, an overhaul life such as generally requiring could be handled, therefore
Maintenance period is grown, and the detection device that vibration testing equipment can only more renew after being burned out, and adds expense.And steam turbine #2, #
Temperature is higher at 3 bearing shells, and can leak gland steam, and vibration detection device is easier high temperature failure, causes protection misoperation.
Vibration detection device of the prior art is only capable of bearing 170 DEG C of temperature, and the hot air temperature sprayed during steam turbine work may
Reach more than 300 DEG C, it is clear that existing vibration detection device is can not to bear the high-temperature gas under steam turbine operation environment.
And in the prior art also without can flexibly install and suitable for various mounting conditions, have high temperature protection function steam turbine
Vibration detection device.
In view of this it is special to propose the utility model.
Utility model content
The technical problems to be solved in the utility model is overcome the deficiencies in the prior art, there is provided a kind of Steam Turbine Vibration inspection
Survey device, including probe and the cable of probe connection, the sleeve pipe for being wrapped in probe and cable connection, the Steam Turbine Vibration
Detection means also includes protection location；The protection location includes the inner and outer tubes being coaxially socketed, and cable is placed in inner tube
Portion, probe stretch out in protection location, and the cavity between inner tube and outer tube is built with powdered heat-barrier material, in inner and outer tubes
It is provided with ripple.The use environment of technical scheme equipment in the present embodiment is basic premise, has stronger ambient adaptability.
In order to solve the above technical problems, the utility model is using the basic conception of technical scheme：A kind of Steam Turbine Vibration
Detection means, including probe and the cable of probe connection, the sleeve pipe for being wrapped in probe and cable connection, the steam turbine shake
Motion detection device also includes protection location；The protection location includes the inner and outer tubes that are coaxially socketed, its be provided at both ends with
It is that inner and outer tubes end is tightly connected jointly, in the first connector and the second connector that lead to, the first connector is socketed in institute
State on sleeve pipe, cable is placed in internal tube, and probe stretches out in protection location, and the cavity between inner tube and outer tube is built with powder
Shape heat-barrier material, ripple is provided with inner and outer tubes.
Preferably, the bending angle scope of the protection location is 30 ° to 180 °.
By above-mentioned design, Steam Turbine Vibration detection means can realize detection work(within the temperature range of 300-500 DEG C
Can, and this it is simple in construction be easily achieved, there is certain bending angle scope and enabling capabilities, suitable for the work of steam turbine
Environment.
The utility model is further arranged to：The rigid connection assist led in being additionally provided with first connector, institute
Connection assist is stated to be socketed in described sleeve pipe, its length dimension scope is 20mm-100mm, preferably 80mm, 50mm, 40mm,
30mm。
Pass through above-mentioned design so that protection location significantly more efficient can realize and the connection of sleeve pipe, connection assist
Rigid structure can preferably realize the supporting role to protection location, avoid the weight of protection location from damaging probe and cable by pressure
Junction.
The utility model is further arranged to：The powdered heat-barrier material is WDS powder.
By above-mentioned design, WDS powder/granules have good heat-proof quality, are easy to grind, the WDS in the present embodiment
Powder/granule can be ground by WDS bulks and is made.And WDS powder/granules have good filling performance and mobile performance, are filling out
It will not be caused to load problem of non-uniform because of filling space is blocked during dress.
The utility model is further arranged to：Said inner tube and outer tube are metal hose.
By above-mentioned design, metal hose can be corrugated stainless steel tubing or flexible metal bellows so that pipe shaft has in itself
There is certain bending performance, and can stablize after heat-insulated powder/granule is loaded and shape, play certain supporting function.
The utility model is further arranged to：The ratio between radial dimension of said inner tube and outer tube is 3:8；
Preferably, said inner tube radial dimension is DN15.
By above-mentioned design, the size range can ensure the WDS powder/granules for loading sufficient amount, ensure cable protection
The maximum temperature tolerance range of unit everywhere is at 300 DEG C -500 DEG C, and the cable protection unit tool formed in the size range
There is good filling performance, ensure that the operation that powder/granule loads is eased.
The utility model is further arranged to：First connector and/or the company of the second connector and inner and outer tubes
It is connected in dismountable connection.
Pass through above-mentioned design so that Steam Turbine Vibration detection means is more easily assembled.
The utility model is further arranged to：The protection location length is 500-1080mm, first connector and
Second connector axial dimension is 30-400mm.
Pass through above-mentioned design so that Steam Turbine Vibration detection means can be adjusted within the specific limits, can be according to actual feelings
Condition is selected.
The utility model is further arranged to：The particle size range of the powdered heat-barrier material is 40-150 mesh.
By above-mentioned design, powdered heat-barrier material, which can have, preferably loads performance, and can reach conjunction after loading
The bulk density of reason so that protection location has more preferable effect of heat insulation.
The utility model is further arranged to：Dispersant is mixed with the powdered heat-barrier material.
During by above-mentioned design, it can make to avoid powdered heat-barrier material conglomeration from influenceing effect of heat insulation.
The utility model is further arranged to：The ripple is set for section gap, the spacing distance model between bellows segment
Enclose for 20mm-100mm.
By above-mentioned design, it can make Steam Turbine Vibration detection means that there is the effect locally bent, Steam Turbine Vibration inspection
The bending for surveying device can be to locally bend, or overall curved bending；The structure also has preferably support energy
Power, it will not be deformed because of own wt and gas shock.
After adopting the above technical scheme, the utility model has the advantages that compared with prior art.
1. the Steam Turbine Vibration detection means in the utility model can realize detection within the temperature range of 300-500 DEG C
Function, and this it is simple in construction be easily achieved, there is certain bending angle scope and enabling capabilities, suitable for the work of steam turbine
Make environment；
2. the protection location of Steam Turbine Vibration detection means significantly more efficient can realize and the connection of sleeve pipe, auxiliary connection
The rigid structure of part can preferably realize the supporting role to protection location, avoid the weight of protection location from damaging probe and line by pressure
The junction of cable；
3.WDS powder/granules have good heat-proof quality, are easy to grind, and the WDS powder/granules in the present embodiment can
It is made by the grinding of WDS blocks., will not during filling and WDS powder/granules have good filling performance, and mobile performance
Block load space cause to load it is uneven；
It can make Steam Turbine Vibration detection means that there is the effect locally bent 4. ripple is the structure that section gap is set,
Also there are more preferable enabling capabilities, will not be deformed because of own wt and gas shock.
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Accompanying drawing is further understood from, this practicality as a part of the present utility model for providing to of the present utility model
New schematic description and description is used to explain the utility model, but does not form to improper restriction of the present utility model.
Obviously, drawings in the following description are only some embodiments, to those skilled in the art, are not paying creation
Property work on the premise of, can also according to these accompanying drawings obtain other accompanying drawings.In the accompanying drawings：
Fig. 1 is the Steam Turbine Vibration detection means schematic diagram in the utility model one embodiment；
Fig. 2 is the Steam Turbine Vibration detection means schematic diagram in the utility model one embodiment；
Fig. 3 is the Steam Turbine Vibration detection means schematic diagram in the utility model one embodiment；
Fig. 4 is the protection location schematic diagram in the utility model one embodiment.
In figure：100th, protection location；11st, inner tube；12nd, outer tube；13rd, the first connector；14th, the second connector；2nd, cable；
3rd, pop one's head in；4th, connection assist.
It should be noted that these accompanying drawings and word description are not intended as limits design of the present utility model in any way
Scope, but be that those skilled in the art illustrate concept of the present utility model by reference to specific embodiment.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in embodiment is clearly and completely described, following examples are used to illustrate this
Utility model, but it is not limited to the scope of the utility model.
, it is necessary to explanation in description of the present utility model, term " on ", " under ", "front", "rear", "left", "right",
The orientation or position relationship of the instruction such as " vertical ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
It is easy to describe the utility model and simplified description, rather than indicates or imply that signified device or element must be with specifically square
Position, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary.
For the ordinary skill in the art, it can understand that specific in the utility model of above-mentioned term containing with concrete condition
Justice.
Embodiment one
As Figure 1-4, the Steam Turbine Vibration detection means of the present embodiment include probe 3, with pop one's head in 3 be connected cables 2,
Probe 3 and the sleeve pipe (not shown in figure, being blocked) of the junction of cable 2 are wrapped in, Steam Turbine Vibration detection means also includes protecting
Protect unit 100；Protection location 100 includes inner tube 11 and the outer tube 12 being coaxially socketed, and it is provided at both ends with and inner tube 11 and outer tube
It is that 12 ends are tightly connected jointly, in the first connector 13 and the second connector 14 that lead to, the first connector 13 is socketed in sleeve pipe
On, cable 2 is placed in inside inner tube 11, and probe 3 stretches out in protection location 100；Cavity between inner tube 11 and outer tube 12 is built-in
There is powdered heat-barrier material；Ripple is provided with inner tube 11 and outer tube 12；The bending angle scope of protection location 100 is 30 °
To 180 °.The connection assist 4 led in being additionally provided with first connector 13, connection assist 4 are socketed on sleeve pipe, its length ruler
Very little scope is 20mm-100mm.The connection of first connector and/or the second connector and inner and outer tubes is dismountable connection.
During assembling, inner tube is connected with the connector 12 of the first connector 11/ second, then by the connector of outer tube 12 and first
13/ second connector 14 connects, and then loads heat-insulated powder/granule, finally by the connector 13 of the second connector 14/ first with it is interior
Pipe 11 and outer tube 12 connect, that is, are completed.The space that the filling of heat-insulated powder/granule should be filled up between inner tube outer tube.Inner tube
It can make protection location that there is bent performance with the ripple on outer tube；Preferably, the ripple size of inner tube is less than or equal to outer
The ripple size of pipe.Because inner tube is thinner, the radial dimension of bending degree of unit is larger when it bends, and inner tube ripple size is set
The size being calculated as less than or equal to outer tube ripple causes it to be integrally easier to bend.Steam Turbine Vibration detection means in the present embodiment
Cable is bending mostly when actual use is fully taken into account during design, and using scene is also impossible to guarantee straight to cable
Laying prepares sufficient space.It can be seen that the use environment of the technical scheme equipment in the present embodiment is basic premise, have stronger
Ambient adaptability.Protection location in the present embodiment inserts internal tube from its one end when in use, by cable, it is determined that relatively
Bending operation is carried out behind position, and the mobility of powder/granule is limited by inner and outer tubes, then the stroke after bending
Angle is easy to shape so that the Steam Turbine Vibration detection means in the present embodiment can not only play thermal insulation protection effect, also
The effect of the support of structure can be realized.The heat-barrier material loaded because it is internal is powder/granule, and powder/granule has stream
Dynamic performance, then it will not increase the difficulty of bending operation completely.Or can be according to actual use feelings when vibration detection device uses
Condition is bent to protection location.The design of connection assist enables the significantly more efficient realization of protection location and the company of sleeve pipe
Connect, the rigid structure of connection assist can preferably realize the supporting role to protection location, avoid the weight of protection location
Damage the junction of probe and cable by pressure.
Embodiment two
The difference of Steam Turbine Vibration detection means and above-described embodiment in the present embodiment is that powdered heat-barrier material is
WDS powder.Inner and outer tubes are metal hose.The ratio between radial dimension of inner tube and outer tube is 3:8.Protection location length is
500-1080mm, the first connector and the second connector axial dimension are 30-400mm.WDS powder/granules have it is good every
Hot property, it is easy to grind, WDS powder/granules can be ground by WDS blocks and are made.And WDS powder/granules have good filling
Can and mobile performance, will not be blocked during filling load space cause to load it is uneven.Metal hose can be stainless steel wave
Line pipe or flexible metal bellows so that pipe shaft has certain bending performance in itself, and after heat-insulated powder/granule is loaded
It can stablize and shape, play certain supporting function.Inner tube radial dimension is DN10-20, and outer tube radial dimension is DN30-50.
The size range can ensure the WDS powder/granules for loading sufficient amount, ensure the highest temperature of Steam Turbine Vibration detection means everywhere
Tolerance range is spent at 300 DEG C -500 DEG C, and the cable protection unit formed in the size range has good filling performance,
Ensure that the operation that powder/granule loads is eased.Preferably, inner tube radial dimension is DN15, and outer tube radial dimension is DN40.
Said structure make it that the length dimension of Steam Turbine Vibration detection means can be selected according to actual conditions within the specific limits.
Embodiment three
The difference of Steam Turbine Vibration detection means and above-described embodiment in the present embodiment is, powdered heat-barrier material
Particle size range is 40-150 mesh.The particle size range of powdered heat-barrier material is 70-90 mesh.It is mixed with powdered heat-barrier material scattered
Agent.The description to powder size is added in the present embodiment, mobility, the bulk density of the powder due to dividing unlike material are all
Powder is filled into cylindrical structure in difference, particularly the utility model, for microcosmic angle, the powder at any position
Filling environment is different, therefore powder table when the difference of granularity is bent to powder filling capacity and Steam Turbine Vibration detection means
The influence of the fluid ability revealed is fairly obvious.Inventor after substantial amounts of test data analyzer by having found, above-mentioned powder grain
It is optimal selection under use environment described in the utility model to spend scope, and the powder of the particle size range can not only ensure vapour
The good assembling of turbine vibration detection device, while excellent heat-insulating capability can also be obtained, for each side synthesis, the present embodiment
In particle size range coordinate the Steam Turbine Vibration structure of the detecting device in the utility model to obtain optimal performance.It is scattered
Being added with for agent remains able to protect beneficial to its internal powdered heat-barrier material after Steam Turbine Vibration detection means long-time use
Hold good disperse.
Example IV
The difference of Steam Turbine Vibration detection means and above-described embodiment in the present embodiment is that ripple sets for section gap
Put, the spacing distance scope between bellows segment is 20mm-100mm.By above-mentioned design, Steam Turbine Vibration detection means can be made
With the effect locally bent, the part of bending is equally distributed everywhere in Steam Turbine Vibration detection means, avoids possessing
Degree bends and influences the cable life-span, and its this structure also has more preferable enabling capabilities, will not be because of Steam Turbine Vibration detection means
The weight of itself and gas shock and be deformed, and then influence measurement effect.
Steam Turbine Vibration detection means in the utility model can realize detection work(within the temperature range of 300-500 DEG C
Can, and this it is simple in construction be easily achieved, there is certain bending angle scope and enabling capabilities, suitable for the work of steam turbine
Environment；Its protection location significantly more efficient can realize and the connection of sleeve pipe, and the rigid structure of connection assist can be more preferable
The supporting role to protection location is realized, avoids the weight of protection location from damaging the junction of probe and cable by pressure；WDS powder/
Grain has good heat-proof quality, is easy to grind, and the WDS powder/granules in the present embodiment can be ground by WDS blocks and are made.And WDS
Powder/granule has good filling performance, and mobile performance, and filling space will not be blocked during filling and causes to load not
Uniformly；Ripple is that the structure that section gap is set can make Steam Turbine Vibration detection means have the effect locally bent, is also had
There are more preferable enabling capabilities, will not be deformed because of own wt and gas shock.
Described above is only preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, although the utility model is disclosed above with preferred embodiment, but is not limited to the utility model, any to be familiar with
The technical staff of this patent is not being departed from the range of technical solutions of the utility model, when the technology contents work using above-mentioned prompting
Go out a little change or be modified to the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solutions of the utility model,
Any simple modification, equivalent change and modification made according to the technical essence of the utility model to above example, still belongs to
In the range of the utility model.
Claims (10)
1. a kind of Steam Turbine Vibration detection means, including probe, with the cable of probe connection, be wrapped in probe and cable connection
Sleeve pipe, it is characterised in that the Steam Turbine Vibration detection means also includes protection location；The protection location includes coaxial sleeve
The inner and outer tubes connect, its be provided at both ends with it is being tightly connected jointly with inner and outer tubes end, in lead to the first connector and
Second connector, the first connector are socketed in described sleeve pipe, and cable is placed in internal tube, and probe stretches out in protection location,
Cavity between inner tube and outer tube is provided with ripple built with powdered heat-barrier material in inner and outer tubes.
2. Steam Turbine Vibration detection means according to claim 1, it is characterised in that：It is additionally provided with first connector
In the rigid connection assist that leads to, the connection assist is socketed in described sleeve pipe, and its length dimension scope is 20mm-
100mm。
3. Steam Turbine Vibration detection means according to claim 1, it is characterised in that：The powdered heat-barrier material is
WDS powder.
4. Steam Turbine Vibration detection means according to claim 1, it is characterised in that：Said inner tube and outer tube are metal
Flexible pipe.
5. Steam Turbine Vibration detection means according to claim 1, it is characterised in that：The radial ruler of said inner tube and outer tube
The ratio between very little is 3:8.
6. Steam Turbine Vibration detection means according to claim 1, it is characterised in that：First connector and/or
The connection of two connectors and inner and outer tubes is dismountable connection.
7. Steam Turbine Vibration detection means according to claim 1, it is characterised in that：The protection location length is 500-
1080mm, first connector and the second connector axial dimension are 30-400mm.
8. Steam Turbine Vibration detection means according to claim 1, it is characterised in that：The grain of the powdered heat-barrier material
Degree scope is 40-150 mesh.
9. Steam Turbine Vibration detection means according to claim 1, it is characterised in that：The bending angle of the protection location
Scope is 30 ° to 180 °.
10. according to the Steam Turbine Vibration detection means described in claim any one of 1-9, it is characterised in that：The ripple is point
Section is arranged at intervals, and the spacing distance scope between bellows segment is 20mm-100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143887.5U CN207180865U (en) | 2017-09-07 | 2017-09-07 | A kind of Steam Turbine Vibration detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143887.5U CN207180865U (en) | 2017-09-07 | 2017-09-07 | A kind of Steam Turbine Vibration detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207180865U true CN207180865U (en) | 2018-04-03 |
Family
ID=61743091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721143887.5U Expired - Fee Related CN207180865U (en) | 2017-09-07 | 2017-09-07 | A kind of Steam Turbine Vibration detection means |
Country Status (1)
| Country | Link |
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| CN (1) | CN207180865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781239A (en) * | 2019-03-07 | 2019-05-21 | 大唐东营发电有限公司 | A kind of steam turbine arbor axis vibration amplitude detection system |
-
2017
- 2017-09-07 CN CN201721143887.5U patent/CN207180865U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781239A (en) * | 2019-03-07 | 2019-05-21 | 大唐东营发电有限公司 | A kind of steam turbine arbor axis vibration amplitude detection system |
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| 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: 20180403 |