CN214066364U - Infrared thermometer structure of galvanizing line annealing furnace - Google Patents
Infrared thermometer structure of galvanizing line annealing furnace Download PDFInfo
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- CN214066364U CN214066364U CN202120196411.8U CN202120196411U CN214066364U CN 214066364 U CN214066364 U CN 214066364U CN 202120196411 U CN202120196411 U CN 202120196411U CN 214066364 U CN214066364 U CN 214066364U
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Abstract
The utility model discloses an infrared thermometer structure of a galvanizing line annealing furnace, which comprises an infrared thermometer body; the infrared temperature measuring instrument body is provided with an infrared temperature measuring pipeline extending towards the direction of the steel plate in the galvanizing line annealing furnace and used for receiving an infrared light signal sent by the steel plate; the infrared temperature measuring pipeline comprises a first cooling device communicated with the infrared temperature measuring instrument body, a plane glass lens used for preventing dust from entering the infrared temperature measuring instrument body, an inert gas injection opening and a second cooling device communicated with the inert gas injection opening from the infrared temperature measuring instrument body to the direction of the steel plate; the utility model discloses can satisfy completely and use and the reading is accurate reliable under high temperature operating condition, do benefit to the realization to the dynamic closed-loop control between annealing stove temperature and the steel sheet temperature, operation process is simple convenient and safe and reliable, is fit for being used for the accurate measurement of all steel sheet annealing temperatures.
Description
Technical Field
The utility model belongs to the continuous galvanizing line production field of steel, concretely relates to galvanizing line annealing stove infrared radiation thermometer structure.
Background
The annealing furnace is a key control device for realizing continuous annealing of a continuous galvanizing line (including an aluminized zinc line), and mainly has the main function of changing the mechanical properties of steel, mainly comprising the strength and the elongation of the steel, and also has the function of reducing the surface of a steel plate. Since these characteristics are all related to the temperature of the steel sheet, that is, for the same steel type, generally the higher the annealing temperature (the temperature lies in the annealing temperature interval), the lower the strength of the steel sheet, and the greater the elongation; in addition, the higher the temperature of the steel sheet, the better the surface reduction in the annealing furnace. Therefore, the accurate control of the temperature of the steel plate in the annealing furnace is particularly important, but unfortunately, the temperature control of the current metal coating wire annealing furnace generally has problems, even infrared thermometers of a plurality of production lines only become furnishings, the root cause is that an effective measuring system for properly applying the infrared thermometers is lacked, and as a result, the infrared thermometers are similar to a nominal one, and the main problems are that the infrared thermometers are easy to damage at high temperature, lenses of the infrared thermometers are easy to dirty, the radiation has great influence on the emissivity of the infrared thermometers, and the reading is inaccurate, and the like.
Therefore, the applicant urgently needs to search a new technical scheme for improving the measurement accuracy of the infrared thermometer structure of the galvanizing line annealing furnace.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a galvanized wire annealing stove infrared radiation thermometer structure can satisfy completely and use and the reading is accurate reliable under high temperature operating condition, does benefit to the realization to the dynamic closed-loop control between annealing stove temperature and the steel sheet temperature, and operation process is simple convenient and safe and reliable, is fit for being used for all steel sheet annealing temperature's accurate measurement.
The technical scheme adopted by the application is as follows:
an infrared thermometer structure of a galvanizing line annealing furnace comprises an infrared thermometer body; the infrared temperature measuring instrument body is provided with an infrared temperature measuring pipeline extending towards the direction of the steel plate in the galvanizing line annealing furnace and used for receiving an infrared light signal sent by the steel plate; the infrared temperature measuring pipeline comprises a first cooling device communicated with the infrared temperature measuring instrument body, a plane glass lens used for preventing dust from entering the infrared temperature measuring instrument body, an inert gas injection opening and a second cooling device communicated with the inert gas injection opening.
Preferably, the infrared thermometer body is fixedly installed at one end of the infrared temperature measuring pipeline through a first installation flange; and the plane glass lens is fixedly installed on the infrared temperature measuring pipeline through a second installation flange.
Preferably, an infrared temperature measuring pipeline section between the infrared thermometer body and the plane glass lens is communicated with the first cooling device; the first cooling device comprises a first cooling water inlet and a first cooling water outlet which are respectively arranged at two sides of the infrared temperature measurement pipeline section, and the first cooling water inlet and the first cooling water outlet are respectively connected with a first cooling water injection pipeline and a first cooling water outflow pipeline.
Preferably, the material of infrared temperature measurement pipeline section is carbon steel, the material of first cooling water injection pipeline and first cooling water outflow pipeline is zinc-plated carbon steel, and the injection pressure of cooling water is 500 KPa.
Preferably, the inert gas injection port is communicated with a nitrogen pipeline, the nitrogen pipeline is made of galvanized carbon steel, and the injection pressure range of the nitrogen is 0.02-0.025 Mpa.
Preferably, a manual switch valve for controlling the infrared thermometer body is installed on the infrared temperature measuring pipeline section between the inert gas injection port and the second cooling device.
Preferably, the second cooling device comprises a cooling sleeve arranged on the periphery of the infrared temperature measuring pipeline in a sealing sleeve manner and used for forming a cooling channel, the cooling channel is provided with a second cooling water inlet and a second cooling water outlet respectively, and the second cooling water inlet and the second cooling water outlet are connected with a second cooling water injection pipeline and a second cooling water outflow pipeline respectively.
Preferably, the cooling channel is in a semicircular shape and is communicated with a bottom cooling water plate positioned at the end part of the infrared temperature measurement pipeline, and the flow direction of cooling water is changed through the bottom cooling water plate.
Preferably, the distance between the bottom cooling water tray and the steel plate is 10-20mm, and the bottom cooling water tray is used for avoiding colliding with the steel plate during production and running.
Preferably, the infrared thermometer structure of the galvanizing line annealing furnace further comprises an up-down movement control device which is connected with the infrared temperature measuring pipeline in an installing mode, and the infrared temperature measuring pipeline can move up and down along the sealed circular track through the up-down movement control device.
The utility model discloses a mainly by infrared radiation thermometer body, infrared temperature measurement pipeline, lie in the two cooling device of different pipeline sections, plane glass lens and inert gas filling opening constitution zinc-plated wire annealing stove infrared radiation thermometer structure, when the actual production operation, lie in the two cooling device of different pipeline sections and can realize the high-efficient cooling to infrared temperature measurement pipeline, avoid the high temperature environment to produce the influence to infrared radiation thermometer body, improve life, plane glass lens can effectively avoid outside dust to get into infrared radiation thermometer body inside simultaneously and cause its damage; the utility model discloses can satisfy completely and use and the reading is accurate reliable under high temperature operating condition, do benefit to the realization to the dynamic closed-loop control between annealing stove temperature and the steel sheet temperature, operation process is simple convenient and safe and reliable, is fit for being used for the accurate measurement of all steel sheet annealing temperatures.
To horizontal annealing stove, the utility model provides an infrared radiation thermometer structure can be used to between naked light section and the radiation section, between radiation section and the cooling zone, between cooling zone and low temperature keep the section to and between low temperature keep section and the thermal tension room section, all can gain similar excellent technological effect.
Drawings
FIG. 1 is a schematic view of an infrared thermometer of a galvanizing line annealing furnace according to an embodiment of the present invention;
fig. 2 is an enlarged view of a portion of the structure of fig. 1.
Detailed Description
The embodiment of the utility model discloses an infrared thermometer structure of a galvanizing line annealing furnace, which comprises an infrared thermometer body; the infrared temperature measuring instrument body is provided with an infrared temperature measuring pipeline extending towards the direction of the steel plate in the galvanizing line annealing furnace and used for receiving an infrared light signal sent by the steel plate; wherein, the infrared temperature measurement pipeline respectively includes the first cooling device rather than the intercommunication, installs the plane glass lens that is used for avoiding the dust to get into the infrared thermometer body, inert gas filling opening and rather than the second cooling device who communicates from the infrared thermometer body to the steel sheet direction.
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Referring to fig. 1 and 2, an infrared thermometer structure of a galvanizing line annealing furnace includes an infrared thermometer body 10, preferably, the infrared thermometer body 10 in this embodiment is an infrared thermometer from IRCON of usa, model 3G-10C05, and emissivity is set to 0.3; the infrared thermometer body 10 is provided with an infrared temperature measuring pipeline 20 which extends towards the direction of the steel plate 2 in the galvanizing line annealing furnace 1 and is used for receiving an infrared light signal sent by the steel plate 2; the infrared temperature measuring pipeline 20 comprises a first cooling device 31 communicated with the infrared thermometer body 10 in the direction of the steel plate 2, a plane glass lens 32 provided with a device for preventing dust from entering the infrared thermometer body 10, an inert gas injection port 33 and a second cooling device 34 communicated with the inert gas injection port; during actual work, infrared light emitted by the steel plate 2 in the annealing furnace 1 penetrates through the plane glass lens 32 and is transmitted to the focusing lens of the infrared thermometer body 10, so that the service life of the infrared thermometer body 10 can be effectively protected;
preferably, in order to facilitate convenient and fast installation, in the embodiment, the infrared thermometer body 10 is fixedly installed at one end of the infrared temperature measurement pipeline 20 through the first installation flange 11, and particularly, in the embodiment, the infrared temperature measurement pipeline section is made of carbon steel, the outer diameter of the pipeline is 55mm, and the wall thickness of the pipeline is 4 mm; the plane glass lens 32 is fixedly arranged on the infrared temperature measuring pipeline 20 through a second mounting flange 32 a;
preferably, in the present embodiment, the infrared temperature measuring pipeline section between the infrared thermometer body 10 and the plane glass lens 32 is communicated with the first cooling device 31; the first cooling device 31 comprises a first cooling water inlet 31a and a first cooling water outlet 31b which are respectively arranged at two sides of the infrared temperature measurement pipeline section, and the first cooling water inlet 31a and the first cooling water outlet 31b are respectively connected with a first cooling water injection pipeline (not shown in the figure) and a first cooling water outflow pipeline (not shown in the figure); specifically, in the present embodiment, the first cooling water inlet pipe and the first cooling water outlet pipe are made of galvanized carbon steel, and have an outer diameter of 30mm and an inner diameter of 20mm, and the injection pressure of the cooling water is 500 KPa;
preferably, in the present embodiment, the inert gas injection port 33 is communicated with a nitrogen gas pipe (not shown), which may specifically be an 1/2 inch galvanized pipe (DN15) made of galvanized carbon steel, and the injection pressure of the nitrogen gas is in the range of 0.02-0.025 Mpa;
preferably, in the present embodiment, a manual switch valve 35 for controlling the infrared thermometer body 10 is installed on the infrared temperature measuring pipeline section between the inert gas injection port 33 and the second cooling device 34, and particularly, the manual switch valve 35 is a manual switch valve with a circular handle, and the corresponding installation connection is realized through a flange;
preferably, in the present embodiment, the second cooling device 34 includes a cooling jacket 34a hermetically sleeved on the outer periphery of the infrared temperature measuring pipe 20 for forming a cooling channel, the cooling channel 34a is respectively provided with a second cooling water inlet 34b and a second cooling water outlet 34c, and the second cooling water inlet 34b and the second cooling water outlet 34c are respectively connected to a second cooling water injection pipe (not shown in the figure) and a second cooling water outflow pipe (not shown in the figure), and particularly preferably, in the present embodiment, the injection pressure of the cooling water is 500KPa, the temperature is 0-32 ℃, and particularly may change with seasons; the second cooling water injection pipeline and the second cooling water outlet pipeline adopt 1.5-inch galvanized pipes (DN40) made of galvanized carbon steel; further preferably, in the present embodiment, the cooling channel is in a semicircular shape, and is communicated with a bottom cooling water plate 34d located at the end of the infrared temperature measurement pipeline 20, and the flow direction of the cooling water is changed by the bottom cooling water plate 34d, specifically, the bottom cooling water plate 34d in the present embodiment is in a disc shape, the height is 55mm, and the outer diameter is 400 mm;
preferably, in the present embodiment, the distance between the bottom cooling water pan 34d and the steel plate 2 is in the range of 10-20mm, so as to avoid touching the steel plate 2 during production operation;
preferably, in this embodiment, the infrared thermometer structure of the galvanized wire annealing furnace further includes an up-down movement control device 40 (which may adopt a conventional electrically-driven displacement installation structure, which is not an innovative content of this application, and therefore this embodiment does not specifically expand the description thereof) installed and connected to the infrared temperature measurement pipeline 20, the infrared temperature measurement pipeline 20 can realize up-down displacement along the sealed circular track 41 through the up-down movement control device 40, specifically in this embodiment, the movable distance is 70mm, the purpose of which is to facilitate the convenience of needle threading operation of the annealing furnace 1 when the wire is opened and the belt is threaded through movement, and when the displacement is performed, the whole infrared temperature measurement pipeline 20 can move up and down on the sealed circular track 41.
In this embodiment, the total length of the infrared temperature measuring pipe 20 from top to bottom is 1860mm, wherein the length of the upper pipe section from the manual switch valve 35 to the infrared thermometer body 10 is 485mm, the outer diameter of the pipe is 55mm, and the wall thickness of the pipe is 4mm, the length of the lower pipe section from the bottom cooling water pan 34d to the manual switch valve 35 is 1375mm, the inner diameter of the pipe is 105mm, and the wall thickness of the pipe is 4mm, wherein the up-down movement control device 40 is installed on the lower pipe section, and smooth transition is realized between the upper pipe section and the lower pipe section through an arc pipe section.
In the embodiment, the infrared thermometer structure of the galvanizing line annealing furnace mainly comprises the infrared thermometer body 10, the infrared temperature measuring pipeline 20, the double cooling devices 31 and 34 positioned at different pipeline sections, the planar glass lens 32 and the inert gas injection port 33, and when in actual production and operation, the double cooling devices 31 and 34 positioned at different pipeline sections can realize efficient cooling of the infrared temperature measuring pipeline 20, thereby avoiding the influence of high-temperature environment on the infrared thermometer body 10, prolonging the service life, and simultaneously, the planar glass lens 32 can effectively avoid external dust from entering the infrared thermometer body 10 to cause damage; the embodiment can completely meet the requirements of use under high-temperature operation conditions, has accurate and reliable reading, is favorable for realizing dynamic closed-loop control between the temperature of the annealing furnace 1 and the temperature of the steel plate 2, has simple, convenient, safe and reliable operation process, and is suitable for accurate measurement of all steel plate annealing temperatures.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. An infrared thermometer structure of a galvanizing line annealing furnace comprises an infrared thermometer body; the device is characterized in that an infrared temperature measuring pipeline extending towards the direction of a steel plate in the galvanizing line annealing furnace is installed on the infrared thermometer body and used for receiving an infrared light signal sent by the steel plate; the infrared temperature measuring pipeline comprises a first cooling device communicated with the infrared temperature measuring instrument body, a plane glass lens used for preventing dust from entering the infrared temperature measuring instrument body, an inert gas injection opening and a second cooling device communicated with the inert gas injection opening.
2. The infrared thermometer structure of the galvanizing line annealing furnace according to claim 1, wherein the infrared thermometer body is fixedly installed at one end of the infrared temperature measuring pipeline through a first installation flange; and the plane glass lens is fixedly installed on the infrared temperature measuring pipeline through a second installation flange.
3. The infrared thermometer structure of the galvannealing furnace according to claim 1 or 2, wherein an infrared temperature measurement pipe section between the infrared thermometer body and the flat glass lens communicates with the first cooling device; the first cooling device comprises a first cooling water inlet and a first cooling water outlet which are respectively arranged at two sides of the infrared temperature measurement pipeline section, and the first cooling water inlet and the first cooling water outlet are respectively connected with a first cooling water injection pipeline and a first cooling water outflow pipeline.
4. The infrared thermometer structure of the galvanizing line annealing furnace according to claim 3, wherein the infrared temperature measuring pipe section is made of carbon steel, the first cooling water injection pipe and the first cooling water outflow pipe are made of galvanized carbon steel, and the injection pressure of the cooling water is 500 KPa.
5. The infrared thermometer structure of the galvanizing line annealing furnace according to claim 1, wherein the inert gas injection port is communicated with a nitrogen gas pipeline, the nitrogen gas pipeline is made of galvanized carbon steel, and the injection pressure of the nitrogen gas ranges from 0.02 Mpa to 0.025 Mpa.
6. The infrared thermometer structure of the galvanizing line annealing furnace according to claim 1, wherein a manual switch valve for controlling the infrared thermometer body is installed on the infrared temperature measuring pipeline section between the inert gas injection port and the second cooling device.
7. The infrared thermometer structure of the galvanizing line annealing furnace according to claim 1, wherein the second cooling device comprises a cooling sleeve arranged on the periphery of the infrared temperature measuring pipe in a sealing manner and used for forming a cooling channel, the cooling channel is respectively provided with a second cooling water inlet and a second cooling water outlet, and the second cooling water inlet and the second cooling water outlet are respectively connected with a second cooling water injection pipe and a second cooling water outflow pipe.
8. The infrared thermometer structure of the galvanized wire annealing furnace according to claim 7, wherein the cooling channel is in a semicircular shape and is communicated with a bottom cooling water pan positioned at the end of the infrared temperature measuring pipe, and the flow direction of the cooling water is changed by the bottom cooling water pan.
9. The infrared thermometer structure of the galvannealing furnace according to claim 8, wherein the distance between the bottom cooling water pan and the steel sheet is in the range of 10-20mm for avoiding touching the steel sheet during production run.
10. The infrared thermometer structure of the galvanizing line annealing furnace according to claim 1, further comprising an up-down movement control device which is connected with the infrared temperature measurement pipeline in an installation manner, wherein the infrared temperature measurement pipeline can realize up-down movement along the sealed circular track through the up-down movement control device.
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| CN202120196411.8U CN214066364U (en) | 2021-01-25 | 2021-01-25 | Infrared thermometer structure of galvanizing line annealing furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116625518A (en) * | 2023-05-06 | 2023-08-22 | 南京净环热冶金工程有限公司 | Channel radiation temperature measurement method and device for screen wall environment in furnace |
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2021
- 2021-01-25 CN CN202120196411.8U patent/CN214066364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116625518A (en) * | 2023-05-06 | 2023-08-22 | 南京净环热冶金工程有限公司 | Channel radiation temperature measurement method and device for screen wall environment in furnace |
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