CN201762353U - Device for measuring temperature field of furnace throat gas of blast furnace - Google Patents
Device for measuring temperature field of furnace throat gas of blast furnace Download PDFInfo
- Publication number
- CN201762353U CN201762353U CN201020513506XU CN201020513506U CN201762353U CN 201762353 U CN201762353 U CN 201762353U CN 201020513506X U CN201020513506X U CN 201020513506XU CN 201020513506 U CN201020513506 U CN 201020513506U CN 201762353 U CN201762353 U CN 201762353U
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- furnace
- sound wave
- blast furnace
- gas
- temperature field
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Abstract
The utility model discloses a device which can measure a temperature field of furnace throat gas of a blast furnace with a non-contact type, for reflecting the arrangement of the furnace throat gas flow and guiding the operation to the blast furnace. The device is composed of sound wave transmitters, sound wave receivers, an amplifier (1), a controller, a computer and monitoring software. The sound wave transmitters and the sound wave receivers are equipped outside the furnace housing at the furnace throat of the blast furnace. The gas with a certain pressure is used as a gas source. A sound-wave temperature measurement principle is utilized for obtaining a real-time temperature field of the furnace throat of blast furnace. A particular measurement path with different precisions is set. The high-precision temperature arrangement at the center and edge area of the float throat can be obtained. The monitoring software can give visual information such as isothermal chart and block chart of the gas temperature field. The device is not affected by high temperature, high pressure or high powder content in the furnace and does not affect material distribution of the furnace.
Description
Affiliated technical field
The utility model relates to a kind of non-contact measurement apparatus of gas temperature field of blast furnace throat.
Background technology
Blast furnace throat coal gas distributions is the important symbol of reflection conditions of blast furnace, mainly characterizes by the furnace throat gas temperature.At present, the measurement of blast furnace throat gas temperature mainly is to adopt cross temperature measurer, and this device is made up of four thermometric girder steels that insert blast furnace throat, several somes thermocouple measurement furnace throat gas temperatures that utilize every steel beam bottom to arrange.But after cross temperature measurer can only be measured the furnace throat limited temperature spot that directly makes progress, particularly blast furnace and maximizes, the thermometric blind area was bigger, can not reflect whole furnace throat planar coal gas distributions comprehensively, causes the erroneous judgement of coal gas stream easily; The thermometric girder steel is washed away by furnace charge impact and coal gas stream for a long time because of stopping roof material distributing in addition, and the equipment rapid wear also can aggravate the furnace charge efflorescence, changes shape of charge level, influence the coal gas distribution, even influence smooth operation of furnace.
Summary of the invention
Influence the deficiency of cloth in order to overcome existing blast furnace throat coal gas measuring apparatus measurement point finite sum, the utility model provides a kind of furnace throat gas temperature field measurement device, this device can the whole furnace throat planar of non-contact measurement temperature field, and does not influence blast furnace material distribution.
The technical scheme that its technical problem that solves the utility model adopts is: measuring apparatus comprises sound wave emissions receptor, amplifier, controller, computer and monitoring software, on the tested plane of blast furnace throat steel brick, be provided with mounting sleeve, the telescopic outward flange is connected with the companionflange of sound wave emissions, receptor, sound wave emissions, receiver front end connect mini microphone, end is connected with source of the gas with magnetic valve through Venturi tube, the signal wire of magnetic valve and mini microphone is connected with controller, and controller is connected with supervisory control computer.
At the acoustic wave propagation path that furnace throat central zone and fringe region are provided with, the point of crossing that makes center and peripheral zone sound wave path is more than the central zone, realizes the unequally accurate measurement of tested plane temperature field.
The pressure of described source of the gas is required sounding pressure of sound wave emissions, receptor and furnace top pressure sum.
Utilize velocity of propagation and funtcional relationship gas temperature between of sound wave in gaseous media that gas temperature field of blast furnace throat is carried out non-contact measurement.Organize sound wave emissions, receptor in the tested Plane Installation of blast furnace throat more, on projector, connect the gas of certain pressure as the sounding source of the gas, because the distance between projector and the receptor is known, measures sound wave and just can calculate medial temperature on this path in the travel-time on the detected space path.Many group sound wave emissions, receptor can form many acoustic wave propagation paths in whole tested plane, each acoustic receiver can be set according to demand can only receive the acoustic signals that the several pingers of fixed send, so just formed specific sound wave path, by the program of setting, order opens and closes each sound wave emissions, receptor, acoustic signals obtains every paths acoustic transit time and path temperature after amplifier and controller processing, give computer monitoring software by port transmission, monitoring software utilizes interpolation algorithm to simulate tested planar temperature field, and provides the isothermal map of detected space, path profile, the information of visualizes such as block diagram and time trend figure.
The beneficial effects of the utility model are, can noncontact under the prerequisite that does not influence blast furnace material distribution, measure the tested planar gas temperature field in furnace throat position accurately, and then obtain the real-time coal gas distributions of whole furnace throat planar situation, the accurate cloth that cooperates distribution device, thereby obtain rational coal gas distributions, help the stable smooth operation of realizing that blast furnace is produced.Device is all installed outside stove in addition, and is simple in structure, easy to maintenance, is not subjected to the influence of furnace high-temperature, high pressure, high dust.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is acoustic wave propagation path figure.
1. sound wave emissions, receptor among the figure, 2. mounting sleeve, 3. last furnace shell, 4. throat armour.
Embodiment
Level is offered open holes and fabrication and installation sleeve pipe 2 on the tested plane of blast furnace throat steel brick 4 shown in Figure 1, sleeve pipe 2 is poured into a mould refractory matter or filling fire resisting material outside the oviduct of the inside of last furnace shell 3, and with furnace shell 3 welded seals, the outward flange of sleeve pipe 2 is connected with the companionflange of sound wave emissions, receptor 1.Termination mini microphone before the sound wave emissions, receptor 1, terminal through Venturi tube and the external source of the gas of magnetic valve, source of the gas is selected nitrogen, and the pressure of nitrogen source of the gas is sound wave, projector 1 required sounding pressure and furnace top pressure sum.Installing all control signals controls by peripheral control unit.
In the embodiment of Fig. 2,16 sound wave emissions, receptors 1 evenly are installed in outside the furnace shell 3, wherein mark the pinger that is of T, mark R's is acoustic receiver, acoustic wave propagation path shown in Figure 2, make the relative region intermediate in sound wave path point of crossing of furnace throat edge and central zone more, the gas temperature in furnace throat edge and centre can obtain higher precision like this.
Claims (3)
1. gas temperature field of blast furnace throat measuring apparatus, comprise sound wave emissions receptor, amplifier, controller, computer and monitoring software, it is characterized in that: on the tested plane of blast furnace throat steel brick (4), be provided with mounting sleeve (2), the outward flange of sleeve pipe (2) is connected with the companionflange of sound wave emissions, receptor (1), sound wave emissions, the preceding termination mini microphone of receptor (1), end is connected with source of the gas with magnetic valve through Venturi tube, the signal wire of magnetic valve and mini microphone is connected with controller, and controller is connected with supervisory control computer.
2. gas temperature field of blast furnace throat measuring apparatus according to claim 1 is characterized in that: at the acoustic wave propagation path that furnace throat central zone and fringe region are provided with, the point of crossing that makes sound wave path on the center and peripheral zone is more than the central zone.
3. gas temperature field of blast furnace throat measuring apparatus according to claim 1 and 2 is characterized in that: the pressure of described source of the gas is sound wave emissions, receptor (1) required sounding pressure and furnace top pressure sum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020513506XU CN201762353U (en) | 2010-09-02 | 2010-09-02 | Device for measuring temperature field of furnace throat gas of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020513506XU CN201762353U (en) | 2010-09-02 | 2010-09-02 | Device for measuring temperature field of furnace throat gas of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201762353U true CN201762353U (en) | 2011-03-16 |
Family
ID=43714963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020513506XU Expired - Lifetime CN201762353U (en) | 2010-09-02 | 2010-09-02 | Device for measuring temperature field of furnace throat gas of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201762353U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928795A (en) * | 2010-09-02 | 2010-12-29 | 首钢京唐钢铁联合有限责任公司 | Device and method for measuring gas temperature field of blast furnace throat |
| CN106680368A (en) * | 2016-12-06 | 2017-05-17 | 深圳东方锅炉控制有限公司 | Sound wave temperature-measuring sounding device and receiving device |
| CN107058660A (en) * | 2017-03-01 | 2017-08-18 | 武汉科技大学 | Means for correcting for thermocouple temperature measurement in blast furnace |
-
2010
- 2010-09-02 CN CN201020513506XU patent/CN201762353U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928795A (en) * | 2010-09-02 | 2010-12-29 | 首钢京唐钢铁联合有限责任公司 | Device and method for measuring gas temperature field of blast furnace throat |
| CN106680368A (en) * | 2016-12-06 | 2017-05-17 | 深圳东方锅炉控制有限公司 | Sound wave temperature-measuring sounding device and receiving device |
| CN106680368B (en) * | 2016-12-06 | 2020-05-05 | 深圳东方锅炉控制有限公司 | Sound wave temperature measurement sound generating mechanism and receiving arrangement |
| CN107058660A (en) * | 2017-03-01 | 2017-08-18 | 武汉科技大学 | Means for correcting for thermocouple temperature measurement in blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |