CN106092303A - Signal pickup device and installation method for coke drum decoking process tower wall local vibration sensor monitoring - Google Patents
Signal pickup device and installation method for coke drum decoking process tower wall local vibration sensor monitoring Download PDFInfo
- Publication number
- CN106092303A CN106092303A CN201610537426.XA CN201610537426A CN106092303A CN 106092303 A CN106092303 A CN 106092303A CN 201610537426 A CN201610537426 A CN 201610537426A CN 106092303 A CN106092303 A CN 106092303A
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- CN
- China
- Prior art keywords
- coke drum
- conduct vibrations
- vibrations body
- sensor
- tower wall
- 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.)
- Pending
Links
- 239000000571 coke Substances 0.000 title claims abstract description 66
- 238000009434 installation Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005235 decoking Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 title claims abstract description 14
- 239000002184 metal Substances 0.000 claims description 44
- 230000001133 acceleration Effects 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 239000002010 green coke Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention provides a kind of signal pickup device for coke drum decoking process tower wall local vibration sensor monitoring, including sensor mounting structure, also include the conduct vibrations body of hollow, one end of conduct vibrations body is fixing with coke drum walls to be connected, the other end of conduct vibrations body connects vibration sensing diaphragm and installation component thereof, and the other end of conduct vibrations body is connected with described sensor mounting structure simultaneously；The inside of conduct vibrations body is the air chamber sealed with the external world connecting described coke drum walls and vibration sensing diaphragm；Described conduct vibrations body is fixed on coke drum work platforms by fixed support.By using apparatus of the present invention and method, owing to sensor does not contacts with coke drum walls, thus avoid the sensor coke drum walls when green coke with up to 500 DEG C and directly contact, the impact on vibration signals collecting of the high temperature of reduction coke drum walls, make the vibration signal collected the sensitiveest, and easy for installation, prolonged application is reliable.
Description
Technical field
The invention belongs to coke drum decoking field, be specifically related to a kind of for coke drum decoking process tower wall local vibration biography
The signal pickup device of sense monitoring and installation method.
Background technology
At present, in delayed coking, the tower wall temperature of green coke operation stage coke drum is up to nearly 500 DEG C, tower wall half
Footpath increases about 50 millimeters, and impacts along with the coke in water under high pressure STRENGTH ON COKE tower in decoking process, and tower wall temperature can drop again
Low to about 50 DEG C.In the monitoring system of petrochemical industry coke drum decoking situation, " hydraulic coke-cutting coke is thick for utility model patent
The mounting frame for sensor of degree detecting system " in (grant number CN202083365U), use piezoelectric transducer to gather and shake
Dynamic signal, its installation method is to pass to sense by tower wall vibrations signal by the direct contact tower wall of the push rod in mounting bracket
Device.Owing to push rod belongs to rigid bar, and heatproof limitation, in the environment of the long-term high/low temperature alternation on a large scale of coke drum,
This installation method not only makes the service life reduction of push rod and sensor, and during green coke, the expansion of coke drum tower wall also can destroy
Erecting device, thus cannot accurately pick up tower wall local vibration signal.
Summary of the invention
The technical problem to be solved in the present invention is: provide one for coke drum decoking process tower wall local vibration sensing prison
The signal pickup device surveyed and installation method, it is possible to the high temperature of the reduction coke drum walls impact on vibration signals collecting so that adopt
The vibration signal that collection arrives is the sensitiveest and easy for installation, prolonged application is reliable.
The present invention solves that the technical scheme that above-mentioned technical problem is taked is: a kind of for coke drum decoking process tower wall
The signal pickup device of local vibration sensor monitoring, including sensor mounting structure, it is characterised in that: it also includes shaking of hollow
Dynamic conduction body, one end of conduct vibrations body is fixing with coke drum walls to be connected, and the other end connection of conduct vibrations body has shakes
Dynamic sensitive diaphragm and installation component thereof, the other end of conduct vibrations body is connected with described sensor mounting structure simultaneously；Shake
The inside of dynamic conduction body is the air chamber sealed with the external world connecting described coke drum walls and vibration sensing diaphragm；Described
Conduct vibrations body is fixed on coke drum work platforms by fixed support.
By such scheme, metal bellows that described conduct vibrations body includes being sequentially connected with, metal adjustment collar and
Metal sleeve, wherein metal bellows is connected with the absorption of described coke drum walls.
By such scheme, described sensor mounting structure is connected with piezoelectric acceleration sensor or fibre-optical F-P sensor.
By such scheme, described sensor mounting structure is 0.6 meter with the distance of coke drum walls.
A kind of installation method of the signal pickup device for coke drum decoking process tower wall local vibration sensor monitoring, its
It is characterised by: conduct vibrations body is first connected with vibration sensing diaphragm and installation component thereof, then by conduct vibrations body and institute
The sensor mounting structure stated connects, and is then connected fixing to one end of conduct vibrations body and coke drum walls, finally in vibration
Between conduction body and coke drum work platforms, fixed support is set.
As stated above, metal bellows that described conduct vibrations body includes being sequentially connected with, metal adjustment collar and
Metal sleeve, the installation steps of conduct vibrations body are: welded with metal adjustment collar by metal bellows；Then metal is adjusted
The joint collar is threadeded with metal sleeve, and threaded connection place is provided with sealing ring；Described metal bellows and described coke drum
Wall absorption connects.
As stated above, by being welded and fixed between described conduct vibrations body and fixed support.
As stated above, between described conduct vibrations body and vibration sensing diaphragm and installation component thereof, conduct vibrations
Between body and described sensor mounting structure, it is threaded.
The invention have the benefit that by using apparatus of the present invention and method, when coke drum walls local vibration, utilize
The air being sealed in conduct vibrations body produces disturbance, thus causes the principle of vibration sensing diaphragm vibration, picks up this vibration
Signal, then installs piezoelectric acceleration sensor or fibre-optical F-P sensor by sensor mounting structure, is changed by vibration signal
For the signal of telecommunication or optical signal, owing to sensor contacts with coke drum walls, thus avoid sensor and when green coke and be up to
The coke drum walls of 500 DEG C directly contacts, the high temperature of the reduction coke drum walls impact on vibration signals collecting so that collect shakes
Dynamic signal is the sensitiveest, and easy for installation, prolonged application is reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
In figure: 1-metal bellows, 2-metal adjustment collar, 3-metal sleeve, 4-vibration sensing diaphragm and installation structure thereof
Part, 5-sensor mounting structure, 6-fixed support, 7-coke drum work platforms, 8-coke drum walls.
Detailed description of the invention
Below in conjunction with instantiation and accompanying drawing, the present invention will be further described.
A kind of signal pickup device for coke drum decoking process tower wall local vibration sensor monitoring, as it is shown in figure 1, bag
Include sensor mounting structure 5, also include that the conduct vibrations body of hollow, one end of conduct vibrations body are fixed with coke drum walls 8
Connecting, the other end of conduct vibrations body connects vibration sensing diaphragm and installation component 4 thereof, and conduct vibrations body is another simultaneously
One end is connected with described sensor mounting structure 5；The inside of conduct vibrations body is to connect described coke drum walls 8 and vibration
The air chamber sealed with the external world of sensitive diaphragm；Described conduct vibrations body is fixed on coke drum by fixed support 6 and works
On platform 7.
In the present embodiment, described conduct vibrations body includes metal bellows 1, the metal adjustment collar 2 being sequentially connected with
With metal sleeve 3, wherein metal bellows 1 is connected with the absorption of described coke drum walls 8.Described sensor mounting structure 5 with
Piezoelectric acceleration sensor or fibre-optical F-P sensor connect, thus after the vibration signal that vibration sensing diaphragm produces is converted to
The signal of telecommunication that is capable of identify that of data processing section of end or optical signal.
In the present embodiment, described sensor mounting structure 5 is 0.6 meter with the distance of coke drum walls 8.
The installation method of a kind of signal pickup device for coke drum decoking process tower wall local vibration sensor monitoring, will
Conduct vibrations body is first connected with vibration sensing diaphragm and installation component 4 thereof, then by conduct vibrations body and described sensor
Installation component 5 connects, and is then connected fixing with coke drum walls 8 for one end of conduct vibrations body, finally at conduct vibrations body
And fixed support 6 is set between coke drum work platforms 7.
The installation steps of conduct vibrations body are: welded with metal adjustment collar 2 by metal bellows 1；Then by metal
Adjustment collar 2 is threadeded with metal sleeve 3, and threaded connection place is provided with sealing ring；Conduct vibrations body is connected with coke drum walls 8
Time, it is only necessary to metal bellows 1 is in close contact coke drum walls 8, the most adsorbable, it is achieved to be tightly connected, easily facilitate installation.
For being welded and fixed between conduct vibrations body and fixed support 6.Conduct vibrations body and vibration sensing diaphragm and
Between installation component 4, between conduct vibrations body and described sensor mounting structure 5, it is threaded.
Described metal bellows 1 is high temperature elastomeric potted component, and its rear end is sealed by argon arc welding with metal adjustment collar 2
Welding, metal adjustment collar 2 makes metal bellows 1 front end be in close contact with coke drum walls 8.Metal adjustment collar 2 and metallic sheath
Cylinder 3 front ends are threaded connection, and the rear end of metal sleeve 3 is threaded connection with sensor mounting structure 5.Vibration sensing diaphragm
The mode using laser welding is fixed on its installation component, and vibration sensing diaphragm and installation component 4 thereof pass through with metal sleeve 3
Threaded.
Described whole signal pickup device is led to fixed support 6 and is weldingly fixed on coke drum work platforms 7.Sensor is installed
Component 5 is 0.6 meter with the horizontal range of coke drum walls 8, and whole signal pickup device is arranged on the height on coke drum work platforms 7
Degree specifically determines according to uniform needs of sensor.
Described sensor mounting structure 5 can install piezoelectric acceleration sensor or fibre-optical F-P sensor, works as coke drum walls
During 8 local vibration, the air being sealed in metal bellows 1 and metal sleeve 3 produces disturbance, causes vibration sensing diaphragm vibration
And stress on piezoelectric acceleration sensor or change Fibre Optical Sensor F-P resonant cavity chamber length with pickup coke drum walls local vibration letter
Number.
The present invention is not only limited to above-mentioned preferred forms, and anyone can show that under the enlightenment of the present invention other are each
The product of kind of form, no matter but in its shape or structure, make any change, every have same or like with the present invention as
Technical scheme, all within its protection domain.
Claims (8)
1., for a signal pickup device for coke drum decoking process tower wall local vibration sensor monitoring, install including sensor
Component, it is characterised in that: it also includes the conduct vibrations body of hollow, and one end of conduct vibrations body is fixing with coke drum walls even
Connecing, the other end of conduct vibrations body connects vibration sensing diaphragm and installation component thereof, another of conduct vibrations body simultaneously
End is connected with described sensor mounting structure；The inside of conduct vibrations body is to connect described coke drum walls and vibration sensing
The air chamber sealed with the external world of diaphragm；Described conduct vibrations body is fixed on coke drum work platforms by fixed support
On.
Picking up signal for coke drum decoking process tower wall local vibration sensor monitoring the most according to claim 1 fills
Put, it is characterised in that: described conduct vibrations body includes metal bellows, metal adjustment collar and the metallic sheath being sequentially connected with
Cylinder, wherein metal bellows is connected with the absorption of described coke drum walls.
Picking up signal for coke drum decoking process tower wall local vibration sensor monitoring the most according to claim 1 fills
Put, it is characterised in that: described sensor mounting structure is connected with piezoelectric acceleration sensor or fibre-optical F-P sensor.
Picking up signal for coke drum decoking process tower wall local vibration sensor monitoring the most according to claim 1 fills
Put, it is characterised in that: described sensor mounting structure is 0.6 meter with the distance of coke drum walls.
5. the signal pickup device for coke drum decoking process tower wall local vibration sensor monitoring described in a claim 1
Installation method, it is characterised in that: conduct vibrations body is first connected with vibration sensing diaphragm and installation component thereof, then general vibrates
Conduction body is connected with described sensor mounting structure, then connects fixing to one end of conduct vibrations body and coke drum walls
Connect, finally fixed support is set between conduct vibrations body and coke drum work platforms.
Installation method the most according to claim 5, it is characterised in that: described conduct vibrations body includes being sequentially connected with
Metal bellows, metal adjustment collar and metal sleeve, the installation steps of conduct vibrations body are: by metal bellows and metal
Adjustment collar is welded；Then metal adjustment collar being threadeded with metal sleeve, threaded connection place is provided with sealing ring；Described
Metal bellows is connected with the absorption of described coke drum walls.
Installation method the most according to claim 5, it is characterised in that: between described conduct vibrations body and fixed support
By being welded and fixed.
Installation method the most according to claim 5, it is characterised in that: described conduct vibrations body and vibration sensing diaphragm
And between installation component, between conduct vibrations body and described sensor mounting structure, it is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537426.XA CN106092303A (en) | 2016-07-08 | 2016-07-08 | Signal pickup device and installation method for coke drum decoking process tower wall local vibration sensor monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537426.XA CN106092303A (en) | 2016-07-08 | 2016-07-08 | Signal pickup device and installation method for coke drum decoking process tower wall local vibration sensor monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106092303A true CN106092303A (en) | 2016-11-09 |
Family
ID=57212626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610537426.XA Pending CN106092303A (en) | 2016-07-08 | 2016-07-08 | Signal pickup device and installation method for coke drum decoking process tower wall local vibration sensor monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106092303A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120287749A1 (en) * | 2011-05-13 | 2012-11-15 | Chevron Corporation | Industrial process monitoring and imaging |
| CN103335705A (en) * | 2013-07-02 | 2013-10-02 | 武汉理工大学 | Optical fiber F-P acoustic sensor for monitoring hydraulic decoking condition of coking tower |
| CN104236471A (en) * | 2014-10-09 | 2014-12-24 | 中国石油化工股份有限公司 | Y-type double-FBG (fiber Bragg grating) optical fiber vibration sensor for online monitoring hydraulic decoking of coking tower |
| CN205826126U (en) * | 2016-07-08 | 2016-12-21 | 武汉理工大学 | Tower wall vibrations signal pickup device for coke drum decoking process |
-
2016
- 2016-07-08 CN CN201610537426.XA patent/CN106092303A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120287749A1 (en) * | 2011-05-13 | 2012-11-15 | Chevron Corporation | Industrial process monitoring and imaging |
| CN103335705A (en) * | 2013-07-02 | 2013-10-02 | 武汉理工大学 | Optical fiber F-P acoustic sensor for monitoring hydraulic decoking condition of coking tower |
| CN104236471A (en) * | 2014-10-09 | 2014-12-24 | 中国石油化工股份有限公司 | Y-type double-FBG (fiber Bragg grating) optical fiber vibration sensor for online monitoring hydraulic decoking of coking tower |
| CN205826126U (en) * | 2016-07-08 | 2016-12-21 | 武汉理工大学 | Tower wall vibrations signal pickup device for coke drum decoking process |
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| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |
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| RJ01 | Rejection of invention patent application after publication |