CN206818327U - A kind of boiler furnace smoke temperature measurement device based on ultrasonic wave - Google Patents
A kind of boiler furnace smoke temperature measurement device based on ultrasonic wave Download PDFInfo
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- CN206818327U CN206818327U CN201720029682.8U CN201720029682U CN206818327U CN 206818327 U CN206818327 U CN 206818327U CN 201720029682 U CN201720029682 U CN 201720029682U CN 206818327 U CN206818327 U CN 206818327U
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Abstract
The utility model belongs to high-temperature flue-gas field of measuring technique, more particularly to a kind of boiler furnace smoke temperature measurement device based on ultrasonic wave, the device include：Computer, terminal box, left ultrasonic transducer, right ultrasonic receiver, signal conditioner and double channel data acquisition card, the left ultrasonic transducer and the right ultrasonic receiver are set in the both sides furnace wall symmetric position of burner hearth, and the signal conditioner is connected respectively, the signal conditioner connects the double channel data acquisition card, the double channel data acquisition card connects the computer by USB line, and the left ultrasonic transducer connects the computer by the terminal box and receives the ultrasonic signal that the computer is sent.Device described in the utility model is not limited by complicated adverse circumstances such as furnace high-temperature, more dirt, burn into turbulent flows, is had the advantages that non-insertion, accurate, real-time, portable measurement, can be judged the combustion case of boiler in time, be easy to adjust and control.
Description
Technical field
The utility model belongs to high-temperature flue-gas field of measuring technique, more particularly to a kind of Boiler Furnace based on ultrasonic wave
Thorax smoke temperature measurement device.
Background technology
In large-scale coal-fired, oil burning boiler, such as heat power plant boiler, steel-making blast furnace, cement rotary kiln, coker etc.
High-temperature service, the measurement of inner flue gas of the stove temperature, stabilization and the optimization of burning are directly connected to, for safe, the economic fortune of equipment
Row is significant.
Conventional flame temperature measurement method is divided into two kinds of non-contact type temperature measurement and contact type temperature measuring.Contact
Thermometry has conventional thermocouple thermometer, expansion type idol thermometer, pressure mode temperature meter, blackbody chamber thermometer and light
Fine thermometry, for example, high temperature measurement is realized using bleeder high-temperature flue gas probe, its essence is former based on thermocouple measurement
When managing, the complicated cooling device of this method needs, and being only used for ignition of the boiler, prevent pipeline overtemperature from doing short time measurement,
Probe automatically exits from during more than 540 DEG C, can not realize real-time measurement during boiler operatiopn.Limited by physical factor, contact temperature
Spend measuring method only to use in the less high region of laboratory or in-furnace temperature, its shortcoming is in response to that speed is relatively slow, error
It is larger, it is difficult to realize temperature field measurement.
Non-contact type temperature measurement is divided into optical method and acoustic method, although optical method is current laboratory flames research and examined
Disconnected Main Means, but its measuring method based on laser technology does not adapt to Temperature Distribution of being burnt in large-sized stove
Measurement.From the foregoing, it will be observed that existing boiler furnace smoke temperature measurement method error is larger, reality during boiler operatiopn can not be realized
When measure.The practical e measurement technology that acoustic method is distributed as high-temperature flue-gas in actual industrial burner hearth, there is measurement essence
Degree is high, temperature-measuring range is wide, measurement space is big, non-contact, real-time continuous operation, it is easy to maintenance the advantages that, be increasingly subject to pay attention to and
Using, it has also become the focus studied both at home and abroad at present.
Utility model content
In view of the above-mentioned problems, the utility model proposes a kind of boiler furnace smoke temperature measurement dress based on ultrasonic wave
Put, the device can realize steady in a long-term to chamber flue gas temperature, accurate, real-time on-line monitoring.
The device includes：Computer, terminal box, left ultrasonic transducer, right ultrasonic receiver, signal conditioner and bilateral
Track data capture card, the left ultrasonic transducer and the right ultrasonic receiver are set in the both sides furnace wall symmetric position of burner hearth
Put, and connect the signal conditioner respectively, the signal conditioner connects the double channel data acquisition card, the binary channels
Data collecting card connects the computer by USB line, and the left ultrasonic transducer connects the computer by the terminal box
And receive the ultrasonic signal that the computer is sent.
Further, flange is passed through between the left ultrasonic transducer, the right ultrasonic receiver and the boiler
Connection, is easy to assemble, dismantle and change.Transducer itself can not only be used as ultrasonic wave transmitting terminal but also ultrasonic wave can be used as to receive
End.
Further, the left ultrasonic transducer, the right ultrasonic receiver use column type transducer, and acoustic resistance exists
Cut-off frequency nearby changes uniformly, and directive property is strong, is easy to the straightline propagation of sound wave.
Further, the left ultrasonic transducer, right ultrasonic receiver are encapsulated in stainless steel sleeve pipe, prevent stove
Flying dust produces deposition due to self gravitation in thorax, influences transaudient effect.
Further, the double channel data acquisition card has two-way output and two-way input, corresponds to respectively described left super
Acoustic wave transducer and the right ultrasonic receiver send sound wave or receive sound wave.
Further, the signal conditioner is filtered and amplified to the ultrasonic signal received.
Further, the computer selects notebook computer, is connected with USB line with double channel data acquisition card, forms one
Cover portable measurement system.
The utility model proposes a kind of new boiler furnace smoke temperature measurement device based on ultrasonic wave, it is in pot
One ultrasonic transducer and ultrasonic receiver are respectively installed in the furnace wall symmetric position of stove burner hearth both sides；Ultrasound as transmitting terminal
Wave transducer sends ultrasonic signal, while is received by offside as the ultrasonic transducer of receiving terminal and be converted into voltage letter
Number, data signal is converted to by inputting double channel data acquisition card with cable after signal conditioner, then pass through cross-correlation analysis
Show that sound wave flies over the time, finally calculate flue-gas temperature through computer and software.
Device described in the utility model is not limited by complicated adverse circumstances such as furnace high-temperature, more dirt, burn into turbulent flows, is had
The advantages that non-insertion, accurate, real-time, portable measurement, the combustion case of boiler can be judged in time, is easy to adjust and controls.
Brief description of the drawings
Fig. 1 is the structural representation of the boiler furnace smoke temperature measurement device based on ultrasonic wave
Embodiment
Below in conjunction with the accompanying drawings, embodiment is elaborated.
Fig. 1 is the structural representation of the boiler furnace smoke temperature measurement device based on ultrasonic wave, as shown in figure 1, in stove
Above symmetric position installs left ultrasonic transducer (3-1) and right ultrasonic receiver (3- respectively in the middle part of the furnace wall side wall of thorax (4)
2), left ultrasonic transducer (3-1) connects computer (1), left ultrasonic transducer (3-1) and right ultrasonic wave by terminal box (2)
Receiver (3-2) is all connected to signal conditioner (5), and signal conditioner (5) is connected with double channel data acquisition card (6), bilateral
Track data capture card (6) has two-way output and two-way input, corresponds to left ultrasonic transducer (3-1) respectively and right ultrasonic wave connects
Device (3-2) is received sound wave occurs or receives sound wave；Double channel data acquisition card (6) is connected to using notebook computer by USB line
Computer (1), form a set of portable measurement system.
Transducer itself can both be used as ultrasound emission end, can be used as ultrasonic reception end again.Wherein, left ultrasonic wave transducer
Device (3-1) and right ultrasonic receiver (3-2) use column type transducer, and acoustic resistance changes uniformly near cut-off frequency, directive property
By force, it is easy to the straightline propagation of sound wave.Left ultrasonic transducer (3-1) and right ultrasonic receiver (3-2) are encapsulated in stainless steel
In sleeve pipe, it can effectively prevent burner hearth (4) interior flying dust from producing deposition due to self gravitation, influence transaudient effect.Left ultrasonic wave
Transducer (3-1), right ultrasonic receiver (3-2) are connected between boiler by flange, are easy to assemble, dismantle and change.
Acoustic measurement flue-gas temperature principle is：Ultrasonic wave can be shifted out onto according to thermodynamic principles and ultrasonic wave wave equation
Following relation be present in spread speed and the temperature of medium in media as well：
V=f (γ, R, m, T)
Wherein, v represents spread speed of the ultrasonic wave in gas, and γ represents the adiabatic exponent of gas, and R represents the general of gas
Suitable constant, m represent the molecular weight of gas, and T represents gas temperature.Therefore, when be aware of the adiabatic exponent of gas, universal constant and
Molecular weight, gas temperature can be calculated by measuring the speed of ultrasonic wave.
At work, notebook computer software produces ultrasonic signal to described device, enters left ultrasonic wave by terminal box (2)
Transducer sends (3-1), and after burner hearth, ultrasonic signal is by the right ultrasonic receiver (3- of ultrasonic transducer (3-1) offside
2) detect；Ultrasonic signal is converted to voltage signal by the ultrasonic transducer as receiving terminal, and passes through signal conditioner (5)
Filtering and amplification, are obtained by double channel data acquisition card (6)；Software in notebook computer (1) is by the signal sent and reception
The signal arrived carries out cross-correlation analysis, show that the ultrasonic wave between two transducers flies over the time, due between two transducers
Distance fix and, it is known that and then calculate spread speed of the sound wave between two transducers, and then pass through relational expression v=f
(γ, R, m, T), the flue-gas temperature of burner hearth is obtained, temperature value is provided in the software display window of notebook computer.
This embodiment is only the preferable embodiment of the utility model, but the scope of protection of the utility model not office
It is limited to this, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with
Scope of the claims is defined.
Claims (6)
1. a kind of boiler furnace smoke temperature measurement device based on ultrasonic wave, it is characterised in that the device includes：Computer, connect
Line box, left ultrasonic transducer, right ultrasonic receiver, signal conditioner and double channel data acquisition card, the left ultrasonic wave
Transducer and the right ultrasonic receiver are set in the both sides furnace wall symmetric position of burner hearth, and connect the signal condition respectively
Device, the signal conditioner connect the double channel data acquisition card, and the double channel data acquisition card connects institute by USB line
Computer is stated, the left ultrasonic transducer, which connects the computer by the terminal box and receives the ultrasound that the computer is sent, to be believed
Number.
2. device according to claim 1, it is characterised in that the left ultrasonic transducer, the right ultrasonic wave receive
It is detachably connected by flange between device and the boiler.
3. device according to claim 1, it is characterised in that the left ultrasonic transducer, the right ultrasonic wave receive
Device uses cylindricality transducer, and the cylindricality transducer can not only be used as ultrasonic wave transmitting terminal but also ultrasonic wave can be used as to receive
End.
4. device according to claim 1, it is characterised in that the left ultrasonic transducer, right ultrasonic receiver are equal
It is encapsulated in stainless steel sleeve pipe.
5. device according to claim 1, it is characterised in that the double channel data acquisition card has two-way output and two
Road inputs, and corresponds to the left ultrasonic transducer respectively and the right ultrasonic receiver sends sound wave or receives sound wave.
6. device according to claim 1, it is characterised in that the signal conditioner is carried out to the ultrasonic signal received
Filtering and amplification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720029682.8U CN206818327U (en) | 2017-01-11 | 2017-01-11 | A kind of boiler furnace smoke temperature measurement device based on ultrasonic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720029682.8U CN206818327U (en) | 2017-01-11 | 2017-01-11 | A kind of boiler furnace smoke temperature measurement device based on ultrasonic wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206818327U true CN206818327U (en) | 2017-12-29 |
Family
ID=60750098
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720029682.8U Expired - Fee Related CN206818327U (en) | 2017-01-11 | 2017-01-11 | A kind of boiler furnace smoke temperature measurement device based on ultrasonic wave |
Country Status (1)
| Country | Link |
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| CN (1) | CN206818327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240873A (en) * | 2018-01-29 | 2018-07-03 | 山西华仁通电力科技有限公司 | A kind of station boiler sound wave thermometric sending device |
-
2017
- 2017-01-11 CN CN201720029682.8U patent/CN206818327U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240873A (en) * | 2018-01-29 | 2018-07-03 | 山西华仁通电力科技有限公司 | A kind of station boiler sound wave thermometric sending device |
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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: 20171229 Termination date: 20200111 |