CN113758581A - Radiation measuring pipe for reducing temperature measurement error based on cooling method - Google Patents
Radiation measuring pipe for reducing temperature measurement error based on cooling method Download PDFInfo
- Publication number
- CN113758581A CN113758581A CN202111157345.4A CN202111157345A CN113758581A CN 113758581 A CN113758581 A CN 113758581A CN 202111157345 A CN202111157345 A CN 202111157345A CN 113758581 A CN113758581 A CN 113758581A
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- China
- Prior art keywords
- radiation
- temperature
- radiation measuring
- measuring tube
- cooling water
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- 230000005855 radiation Effects 0.000 title claims abstract description 61
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 title claims abstract description 10
- 239000000498 cooling water Substances 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 239000011229 interlayer Substances 0.000 claims abstract 4
- 238000009434 installation Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
- G01J5/061—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity by controlling the temperature of the apparatus or parts thereof, e.g. using cooling means or thermostats
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0044—Furnaces, ovens, kilns
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention relates to the field of thermotechnical measurement, in particular to a radiation measuring tube for reducing temperature measurement errors based on a cooling method, which comprises a radiation measuring tube arranged inside a high-temperature furnace and a temperature measuring instrument arranged outside the high-temperature furnace, wherein a diaphragm is arranged between the output end of the radiation measuring tube and the input end of the temperature measuring instrument, a light shield is arranged at the detection end of the radiation measuring tube, a first cooling water pipe is arranged between the radiation measuring tube and a light shield shell interlayer, a second cooling water pipe is arranged between the radiation measuring tube and the light shield shell interlayer, and background radiation interference in the furnace is reduced by reducing the temperature of the inner wall of the radiation measuring tube, so that the measurement precision is improved.
Description
Technical Field
The invention relates to the field of thermal measurement, in particular to a radiation measuring tube for reducing temperature measurement errors based on a cooling method.
Background
Smooth metal moving in a high temperature furnace, such as a continuous annealing furnace, needs to solve two problems in the radiation temperature measurement process: first, the emissivity compensation of the target is accurately calculated, and second, the background radiation noise of the furnace is eliminated. A single-waveband infrared thermometer is arranged outside a furnace, noise radiation in the furnace is increased along with the increase of the temperature of the furnace, the proportion of the interference radiation is further increased along with the change of the temperature, and if the interference signal in the waveband is not processed, the temperature signal output by a detector contains the interference signal, so that the temperature measurement accuracy is greatly reduced.
We carry out the temperature measurement through surveying buret, the signal that the detector detected is just only the radiation signal of target object plus the radiation signal of surveying buret, and the radiation signal of surveying buret this moment is very weak, in the thermal radiation engineering, only high temperature object just can produce the radiation interference to low temperature object, and low temperature object does not produce the radiation interference to high temperature object, we can reduce the stove interior background radiation interference to minimum like this, improve the temperature measurement precision greatly, simultaneously again through the accurate compensation of emissivity modeling system to the emissivity, just can further improve the temperature measurement precision.
Disclosure of Invention
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a radiation measurement buret based on cooling method reduces temperature measurement error, is including installing in the inside radiation measurement buret of high temperature furnace and setting up in the outside thermoscope of high temperature furnace, the installation is equipped with the diaphragm between radiation measurement buret output and the thermoscope input, the installation of radiation measurement buret detection end is equipped with the lens hood, radiation measurement buret and lens hood casing intermediate layer are equipped with first condenser tube, thermoscope casing intermediate layer is equipped with the second condenser tube.
As an improvement, the first cooling water pipe and the second cooling water pipe are both arranged to be in a spiral structure.
After adopting the structure, the invention has the following advantages:
by reducing the temperature of the inner wall of the radiation measuring tube, the background radiation interference in the furnace is reduced, and the measurement precision is improved.
Drawings
FIG. 1 is a schematic view of a measuring apparatus;
FIG. 2 is a schematic view of the arrangement of water pipes inside the measuring device;
fig. 3 is a schematic view showing a state in which the radiation measuring pipe is mounted and used.
As shown in fig. 1-3: 1. the device comprises a radiation measuring pipe, 2, a temperature measuring instrument, 3, a first cooling water pipe, 4, a second cooling water pipe, 5, a light shield, 6, a diaphragm, 7, a high-temperature furnace, 8 and an object to be measured.
Detailed Description
With reference to the attached drawings 1-3, a radiation measuring pipe for reducing temperature measurement errors based on a cooling method comprises a radiation measuring pipe 1 installed inside a high-temperature furnace 7 and a temperature measuring instrument 2 arranged outside the high-temperature furnace 7, wherein a diaphragm 6 is installed between the output end of the radiation measuring pipe 1 and the input end of the temperature measuring instrument 2, a light shield 5 is installed at the detection end of the radiation measuring pipe 1, a first cooling water pipe 3 is arranged on the radiation measuring pipe 1 and the light shield 5, and a second cooling water pipe 4 is arranged on the temperature measuring instrument 2.
As a preferred embodiment of the present embodiment, the first cooling water pipe 3 and the second cooling water pipe 4 are both provided with a spiral structure.
In the specific implementation of the invention, as shown in fig. 1-3, the invention comprises a radiation measuring tube 1 installed inside a high temperature furnace 7 and a temperature measuring instrument 2 installed outside the high temperature furnace 7, a diaphragm 6 is installed between the output end of the radiation measuring tube 1 and the input end of the temperature measuring instrument 2, a light shield 5 is installed at the detection end of the radiation measuring tube 1, a first cooling water pipe 3 is arranged between the radiation measuring tube 1 and the light shield 5, a second cooling water pipe 4 is arranged between the shells of the temperature measuring instrument 2, the radiation emittance of an object is in direct proportion to the fourth power of the temperature of the object according to stefin-boltzman law, the temperature of the radiation measuring tube is reduced by a small amount, the external radiation intensity of the radiation measuring tube is greatly reduced, if the temperature of the radiation measuring tube is reduced by 240 ℃, and the external radiation of the radiation measuring tube is only 12.9% of the original. And we make measuring buret cooling about 200 ℃ very easy through water-cooling mode, we carry out the temperature measurement through measuring buret this moment, the signal that the detector detected just only has the radiation signal of target object plus the radiation signal of measuring buret, and the radiation interference signal of measuring buret this moment is very low, thermal radiation engineering is last, only high temperature object just can produce the radiation interference to low temperature object, and low temperature object does not produce the radiation interference to high temperature object, we can reduce the interior background radiation interference of stove to minimum like this, improve the temperature measurement precision greatly.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. The utility model provides a radiation measurement buret based on cooling method reduces temperature measurement error, includes installs in radiation measurement buret (1) inside high temperature furnace (7) and sets up in thermoscope (2) of high temperature furnace (7) outside, its characterized in that: the radiation measuring pipe is characterized in that a diaphragm (6) is arranged between the output end of the radiation measuring pipe (1) and the input end of the temperature measuring instrument (2), a light shield (5) is arranged at the detection end of the radiation measuring pipe (1), a first cooling water pipe (3) is arranged between the radiation measuring pipe (1) and the light shield (5) in a shell interlayer, and a second cooling water pipe (4) is arranged between the temperature measuring instrument (2) and the shell interlayer.
2. A radiation measuring tube with reduced temperature measurement error based on a cooling method as claimed in claim 1, characterized in that: the first cooling water pipe (3) and the second cooling water pipe (4) are both set to be of a spiral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111157345.4A CN113758581A (en) | 2021-09-30 | 2021-09-30 | Radiation measuring pipe for reducing temperature measurement error based on cooling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111157345.4A CN113758581A (en) | 2021-09-30 | 2021-09-30 | Radiation measuring pipe for reducing temperature measurement error based on cooling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113758581A true CN113758581A (en) | 2021-12-07 |
Family
ID=78798430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111157345.4A Withdrawn CN113758581A (en) | 2021-09-30 | 2021-09-30 | Radiation measuring pipe for reducing temperature measurement error based on cooling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113758581A (en) |
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 |
-
2021
- 2021-09-30 CN CN202111157345.4A patent/CN113758581A/en not_active Withdrawn
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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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211207 |