CN107907218A - Radiation protection cooling system in a kind of stove for infrared measurement of temperature - Google Patents

Radiation protection cooling system in a kind of stove for infrared measurement of temperature Download PDF

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Publication number
CN107907218A
CN107907218A CN201711266917.6A CN201711266917A CN107907218A CN 107907218 A CN107907218 A CN 107907218A CN 201711266917 A CN201711266917 A CN 201711266917A CN 107907218 A CN107907218 A CN 107907218A
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CN
China
Prior art keywords
radiation protection
pipe
air cooling
stove
infrared measurement
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
Application number
CN201711266917.6A
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Chinese (zh)
Inventor
马和连
左爱娟
陈龙
张福煜
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Nanjing Neemtech Control Technology Co
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Nanjing Neemtech Control Technology Co
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Publication date
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Priority to CN201711266917.6A priority Critical patent/CN107907218A/en
Publication of CN107907218A publication Critical patent/CN107907218A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0044Furnaces, ovens, kilns
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54Furnaces for treating strips or wire
    • C21D9/56Continuous furnaces for strip or wire
    • C21D9/562Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Radiation Pyrometers (AREA)

Abstract

The invention discloses radiation protection cooling system in a kind of stove for infrared measurement of temperature, including gaseous medium, radiation protection observation casing and thermal insulation layer;The thermal insulation layer is wrapped on the surrounding outer wall of radiation protection observation set pipe furnace inner segment;Thermometric passage is equipped with the radiation protection observation casing, the gaseous medium is discharged after being passed through radiation protection observation casing, and cooling circuit is formed to whole thermometric passage surrounding and radiation protection observation sleeve bottom.The radiation protection observation casing includes air cooling intracavitary pipe and air cooling chamber outer tube, and for the air cooling intracavitary pipe sleeve loaded in air cooling chamber outer tube, the air cooling intracavitary pipe forms perforative thermometric passage, and closed chamber is formed between the air cooling intracavitary pipe and air cooling chamber outer tube.The surrounding outer wall of radiation protection observation set pipe furnace inner segment is wrapped in as a result of thermal insulation layer, has blocked substantial amounts of heat radiation so that just can reach the effect of cooling observation casing using a small amount of gaseous cooling medium, and obtain the cooling effect identical with liquid medium.

Description

Radiation protection cooling system in a kind of stove for infrared measurement of temperature
Technical field
The present invention relates to a kind of to cold rolled sheet temperature is detected in continuous annealing furnace apparatus, and in particular to Yi Zhongyong In radiation protection cooling system in the stove of infrared measurement of temperature.
Background technology
, it is necessary to measure the temperature of cold rolled sheet using infrared radiation thermometer in the annealing furnace of various cold rolled sheets.In order to Furnace temperature is eliminated higher than influence of the heat radiation caused by board temperature to infrared measurement of temperature result, it is necessary to installed additional on thermometric passage every Hot cooling collar, makes the temperature of cooling collar bottom and inner wall less than the surface temperature of cold rolled sheet to realize accurate measurement.By It is direct or indirect in the bottom end face and outer wall of cooling collar(A small amount of thermal insulation layer)Exposure is at high temperature, it is necessary to use a large amount of coolings Medium carries out continued down.And liquid medium once leaks into stove and cold rolled sheet surface, furnace atmosphere will be directly destroyed With the surface quality of cold rolled sheet, halt production and product quality accident are caused.All there is leakage thing in nearly all application scenario Part, not only seriously affects production, is also consumed by mass energy, causes extra maintenance cost, and massive losses are brought to enterprise.
To change the present situation of liquid cooling medium leakage, mainly restricted be subject to following condition:(1)Cooling collar with it is cold The required distance of threading determines that the base diameter of casing is very big between rolling strip, and strip determines cooling collar to furnace roof height Height it is higher.Therefore, substantial amounts of thermal energy can be assembled in cooling collar.(2)Such as replace liquid medium to cool down with gaseous medium, be Avoid producing oxidation to strip, nitrogen or other inert gases need to be used, unit cost is very high, while cold to reach liquid medium But effect, the dosage of gaseous medium is very big, and the mode of gaseous medium cooling is denied substantially.
The content of the invention
It is an object of the invention to provide radiation protection cooling system in a kind of stove for infrared measurement of temperature, to solve the above-mentioned back of the body Halt production and the quality problems caused by occurring leakage when being cooled down using liquid cooling medium referred in scape technology.
To achieve the above object, the present invention provides following technical solution:Radiation protection is cold in a kind of stove for infrared measurement of temperature But system, including gaseous medium, radiation protection observation casing and thermal insulation layer;
The thermal insulation layer is wrapped on the surrounding outer wall of radiation protection observation set pipe furnace inner segment;
Thermometric passage is equipped with the radiation protection observation casing, the gaseous medium is discharged after being passed through radiation protection observation casing, right Whole thermometric passage surrounding and radiation protection observation sleeve bottom form cooling circuit.
The radiation protection observation casing includes air cooling intracavitary pipe and air cooling chamber outer tube, and the air cooling intracavitary pipe sleeve is loaded on air cooling In chamber outer tube, the air cooling intracavitary pipe forms perforative thermometric passage, is formed between the air cooling intracavitary pipe and air cooling chamber outer tube Closed chamber.
Further, is additionally provided with inlet end and exhaust end on radiation protection observation casing, the gaseous medium by into Discharged after entering in closed chamber by exhaust end at gas end.
Further, gas-guide tube is additionally provided with the inlet end, the gaseous medium is directed at closed chamber bottom through gas-guide tube.
Further, pipe is further included, the pipe is set between air cooling intracavitary pipe and air cooling chamber outer tube, the pipe Bottom and radiation protection observation casing bottom between be equipped with gap.
Further, thermocouple is further included, the thermocouple detects the temperature in closed chamber.
Further, the radiation protection observation casing is made of coil pipe, and the coil pipe includes thermometric passage coil pipe and bottom surface Radiation protection coil pipe.
Further, protective layer is further included, the protective layer is wrapped in the surrounding outer wall of thermal insulation layer.
Further, the gaseous medium is nitrogen
Compared with prior art, the beneficial effects of the invention are as follows:
(1)The surrounding outer wall of radiation protection observation set pipe furnace inner segment is wrapped in as a result of thermal insulation layer, has blocked substantial amounts of hot spoke Penetrate so that just can reach the effect of cooling observation casing using a small amount of gaseous cooling medium, and obtain identical with liquid medium Cooling effect, can obtain higher economic value;
(2)By controlling radiation protection to observe the distance between casing and cold rolled sheet, it is gas-cooled between chamber outer tube and air cooling intracavitary pipe The airtight cavity of formation forms a dash area on the surface of cold rolled sheet, has blocked after furnace wall heats on cold rolled sheet surface The heat radiation of generation;
(3)Nitrogen is entered the bottom of closed chamber by inlet end, has drawn bottom heat and furnace body is conducted to the heat of closed chamber Discharged afterwards from exhaust end, the gas circulation cooling system being consequently formed, ensure that the temperature of airtight cavity thermometric passage is low In the temperature of cold rolled sheet, eliminate heat radiation influences caused by thermometric passage;
(4)Thermocouple can detect the temperature in closed chamber, in the case where meeting use condition, can reduce the flow of nitrogen, real Dynamic control when real;
(5)Liquid cooling medium leakage accident in stove is avoided, production efficiency can be improved, saves mass energy, reduces personnel's dimension Shield, production maintenance, replace a series of expenses such as observation casing.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention 1;
Fig. 2 is the scheme of installation of the thermocouple of the embodiment of the present invention 1;
Fig. 3 is the top view of 2 pipe of embodiment of the present invention installation;
Fig. 4 is the front view of 2 pipe of embodiment of the present invention installation;
Fig. 5 is the structure diagram of 3 coil pipe of the embodiment of the present invention;
In figure:1- infrared radiation thermometers, 2- connecting flanges, 3- exhaust ends, the upper mounting flanges of 4-, mounting flange under 5-, 6- shelves, 7- Furnace wall, 8- protective layers, 9- thermal insulation layers, 10- air cooling chamber outer tubes, 11- cold rolled sheets, 12- air cooling intracavitary pipes, 13- inlet ends, 14- Thermocouple, 15- pipes, 16- thermometric passage coil pipes, 17- bottom surfaces radiation protection coil pipe.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes.Obviously, described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Base Embodiment in the present invention, those of ordinary skill in the art obtained without making creative work it is all its His embodiment, belongs to the scope of protection of the invention.
Embodiment 1:Please refer to Fig.1 and Fig. 2, the first embodiment of the invention, including gaseous medium, radiation protection observation cover Pipe and thermal insulation layer 9;
The radiation protection observation casing includes air cooling intracavitary pipe 12 and air cooling chamber outer tube 10, and the air cooling intracavitary pipe 12 is set in gas In cold chamber outer tube 10, the air cooling intracavitary pipe 12 forms perforative thermometric passage, the air cooling intracavitary pipe 12 and air cooling chamber outer tube Closed chamber is formed between 10;
Inlet end 13 and exhaust end 3 are additionally provided with the radiation protection observation casing, the inlet end 13 is connected with square air guide Pipe, the vertical segment of the gas-guide tube are inserted into closed chamber bottom, institute parallel to radiation protection observation casing axis from closed chamber top surface State exhaust end 3 and be connected with square exhaust pipe, the vertical segment of the exhaust pipe observes casing axis from closed parallel to radiation protection Chamber top surface is inserted into closed chamber upper end, and the gaseous medium is entered in gas-guide tube by inlet end 13, makees in the water conservancy diversion of gas-guide tube Discharged after closed chamber bottom is directed under by exhaust end 3;
Thermocouple 14 is further included, the detection termination of the thermocouple 14 is fixedly arranged in closed chamber, for detecting the temperature in closed chamber Degree;
Any inert gas can be selected in the gaseous medium, preferably, the gaseous medium selects nitrogen;
The gaseous medium is discharged after being passed through radiation protection observation casing, can observe casing to whole thermometric passage surrounding and radiation protection Cooling circuit is formed on bottom.
The thermal insulation layer 9 is wrapped on the surrounding outer wall of radiation protection observation set pipe furnace inner segment, and the thermal insulation layer 9, which can be selected, appoints The material what has heat insulating function makes, preferably, the thermal insulation layer 9 selects fire resisting cotton to make;Protective layer 8 is further included, it is described Protective layer 8 is wrapped in the surrounding outer wall of thermal insulation layer 9, forms the outer cover of thermal insulation layer 9, and stainless steel making can be selected in the thermal insulation layer 9.
In addition, during 11 threading of cold rolled sheet, observing casing shoe in order to avoid radiation protection may to the process The influence of generation, the radiation protection observation casing can be lifted in short transverse, when radiation protection observation casing is lifted up 11 threading of cold rolled sheet during concordant with thermal insulation layer 9 and 8 bottom of protective layer position, temperature is carried out after radiation protection observation casing falls Degree measurement.
For the ease of the installation of parts, the top of the radiation protection observation casing passes through connecting flange 2 and infrared measurement of temperature The detection termination connection of instrument 1;7 top surface of furnace wall welds one piece of shelf 6, the solderable bottom for being connected to shelf 6 in 8 top of protective layer Face;The fixed upper mounting flange 4 of sleeve outer wall coaxial line is observed in the radiation protection, on the shelf 6 welding one with it is described solid Determine the lower mounting flange 5 of the cooperation of flange 4, the radiation protection observation casing is fixedly arranged on by upper mounting flange 4 and lower mounting flange 5 The top surface of furnace wall 7.
Embodiment 2:Fig. 3 and Fig. 4 are referred to, second of embodiment of the invention is described anti-compared with the first embodiment Pipe 15 is fixedly provided with Radiation Observation casing, the pipe 15 is set between air cooling intracavitary pipe 12 and air cooling chamber outer tube 10, Gap is equipped between the bottom of the pipe 15 and the bottom of radiation protection observation casing, the gaseous medium can be from the one of pipe 15 Side imports, and is exported from the opposite side of pipe 15, forms dynamic circulating cooling system.
Embodiment 3:Referring to Fig. 5, the third embodiment of the present invention, compared with the first embodiment, the radiation protection is seen Survey casing to be made of coil pipe, the coil pipe includes thermometric passage coil pipe 16 and bottom surface radiation protection coil pipe 17, the thermometric channel disc Column structure is made by the gapless circulation disk of snorkel in pipe 16, and the bottom surface radiation protection coil pipe 17 is followed by snorkel is gapless Chassis structure is made in the ring disk;The gaseous medium is imported from the inlet end of coil pipe, after flowing through coil pipe, is led from the exhaust end of coil pipe Go out, form dynamic circulating cooling system;The bottom surface radiation protection coil pipe 17 forms a shade on the surface of cold rolled sheet 11 Part, plays the role of blocking the heat radiation produced after furnace wall 7 heats.
Occupation mode:
(1)After the closed chamber of the radiation protection observation casing is welded using argon arc welding, leakage survey is carried out using 0.8MP pressure Try, be installed on after test passes in furnace body;
(2)Formally before use, nitrogen is passed through in inlet end 13, and enter closed chamber, discharged by outlet side 3, in closed chamber It is interior to form stable circulating cooling working status;
(3)The temperature of the thermometric passage in radiation protection observation casing is detected using thermocouple 14, observation thermocouple 14 Temperature display, adjusts air inflow until air inflow and temperature keep balance, you can come into operation after stablizing.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understand without departing from the principles and spirit of the present invention, can to these embodiments carry out it is a variety of change, modification, replace and Modification, the scope of the present invention is defined by the appended.

Claims (9)

  1. A kind of 1. radiation protection cooling system in stove for infrared measurement of temperature, it is characterised in that:Observed including gaseous medium, radiation protection Casing and thermal insulation layer(9);
    The thermal insulation layer(9)It is wrapped on the surrounding outer wall of radiation protection observation set pipe furnace inner segment;
    Thermometric passage is equipped with the radiation protection observation casing, the gaseous medium is discharged after being passed through radiation protection observation casing, right Whole thermometric passage surrounding and radiation protection observation sleeve bottom form cooling circuit.
  2. 2. radiation protection cooling system in a kind of stove for infrared measurement of temperature according to claim 1, it is characterised in that:It is described Radiation protection observation casing includes air cooling intracavitary pipe(12)With air cooling chamber outer tube(10), the air cooling intracavitary pipe(12)It is set in air cooling Chamber outer tube(10)It is interior, the air cooling intracavitary pipe(12)Form perforative thermometric passage, the air cooling intracavitary pipe(12)With air cooling chamber Outer tube(10)Between form closed chamber.
  3. 3. radiation protection cooling system in a kind of stove for infrared measurement of temperature according to claim 2, it is characterised in that:It is described Inlet end is additionally provided with radiation protection observation casing(13)And exhaust end(3), the gaseous medium passes through inlet end(13)Enter to By exhaust end after in closed chamber(3)Discharge.
  4. 4. radiation protection cooling system in a kind of stove for infrared measurement of temperature according to claim 3, it is characterised in that:It is described Inlet end(13)Gas-guide tube is inside additionally provided with, the gaseous medium is directed at closed chamber bottom through gas-guide tube.
  5. 5. radiation protection cooling system in a kind of stove for infrared measurement of temperature according to claim 2, it is characterised in that:Also wrap Include pipe(15), the pipe(15)It is set in air cooling intracavitary pipe(12)With air cooling chamber outer tube(10)Between, the pipe(15) Bottom and radiation protection observation casing bottom between be equipped with gap.
  6. 6. radiation protection cooling system in a kind of stove for infrared measurement of temperature according to claim 2, it is characterised in that:Also wrap Include thermocouple(14), the thermocouple(14)Detect the temperature in closed chamber.
  7. 7. radiation protection cooling system in a kind of stove for infrared measurement of temperature according to claim 1, it is characterised in that:It is described Radiation protection observation casing is made of coil pipe, and the coil pipe includes thermometric passage coil pipe(16)With bottom surface radiation protection coil pipe(17).
  8. 8. radiation protection cooling system in a kind of stove for infrared measurement of temperature according to any one of claim 1-7, it is special Sign is:Further include protective layer(8), the protective layer(8)It is wrapped in thermal insulation layer(9)Surrounding outer wall.
  9. 9. according to radiation protection cooling system in a kind of stove for infrared measurement of temperature described in claim 8, it is characterised in that:Institute It is nitrogen to state gaseous medium.
CN201711266917.6A 2017-12-05 2017-12-05 Radiation protection cooling system in a kind of stove for infrared measurement of temperature Pending CN107907218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711266917.6A CN107907218A (en) 2017-12-05 2017-12-05 Radiation protection cooling system in a kind of stove for infrared measurement of temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711266917.6A CN107907218A (en) 2017-12-05 2017-12-05 Radiation protection cooling system in a kind of stove for infrared measurement of temperature

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108917937A (en) * 2018-07-06 2018-11-30 深圳东康前海新能源有限公司 A kind of heat exchanger temperature measuring equipment and heat exchanger
CN109238511A (en) * 2018-07-19 2019-01-18 中国航发沈阳发动机研究所 A kind of temperature test detector probe
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
CN116694911A (en) * 2023-06-18 2023-09-05 海安天一智控设备有限公司 Temperature measuring device with good anti-interference capability for strip steel in annealing furnace

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726721A (en) * 1980-07-25 1982-02-12 Nippon Steel Corp Surface temperature measuring device for object in furnace
JPH01144800U (en) * 1988-03-29 1989-10-04
CN101957275A (en) * 2010-08-31 2011-01-26 上海宝英光电科技有限公司 Sampling probe
CN103808412A (en) * 2012-11-02 2014-05-21 中国石油化工集团公司 Hearth workpiece temperature measuring device and method
CN105043574A (en) * 2015-05-13 2015-11-11 任昆鹏 In-furnace temperature measuring apparatus
CN207423371U (en) * 2017-12-05 2018-05-29 南京佛利蒙特测控技术有限公司 Radiation protection cooling system in a kind of stove for infrared measurement of temperature

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726721A (en) * 1980-07-25 1982-02-12 Nippon Steel Corp Surface temperature measuring device for object in furnace
JPH01144800U (en) * 1988-03-29 1989-10-04
CN101957275A (en) * 2010-08-31 2011-01-26 上海宝英光电科技有限公司 Sampling probe
CN103808412A (en) * 2012-11-02 2014-05-21 中国石油化工集团公司 Hearth workpiece temperature measuring device and method
CN105043574A (en) * 2015-05-13 2015-11-11 任昆鹏 In-furnace temperature measuring apparatus
CN207423371U (en) * 2017-12-05 2018-05-29 南京佛利蒙特测控技术有限公司 Radiation protection cooling system in a kind of stove for infrared measurement of temperature

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108917937A (en) * 2018-07-06 2018-11-30 深圳东康前海新能源有限公司 A kind of heat exchanger temperature measuring equipment and heat exchanger
CN109238511A (en) * 2018-07-19 2019-01-18 中国航发沈阳发动机研究所 A kind of temperature test detector probe
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
CN116694911A (en) * 2023-06-18 2023-09-05 海安天一智控设备有限公司 Temperature measuring device with good anti-interference capability for strip steel in annealing furnace
CN116694911B (en) * 2023-06-18 2024-03-29 海安天一智控设备有限公司 Temperature measuring device with good anti-interference capability for strip steel in annealing furnace

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