CN118328727A - Reservation design method, monitoring system and device for shuttle kiln temperature measuring hole - Google Patents
Reservation design method, monitoring system and device for shuttle kiln temperature measuring hole Download PDFInfo
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- CN118328727A CN118328727A CN202410506101.XA CN202410506101A CN118328727A CN 118328727 A CN118328727 A CN 118328727A CN 202410506101 A CN202410506101 A CN 202410506101A CN 118328727 A CN118328727 A CN 118328727A
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- 238000010304 firing Methods 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 11
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 9
- 238000004164 analytical calibration Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 3
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- 238000004519 manufacturing process Methods 0.000 description 8
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Abstract
The invention belongs to the technical field of temperature measurement and tracing, and discloses a reserved design method, a monitoring system and a reserved design device for a temperature measuring hole of a shuttle kiln, wherein a testing interval of the distribution uniformity of a temperature field, the stability of the temperature field, the deviation of the temperature field and the maximum temperature difference of the temperature field of the shuttle kiln is defined from a metering angle; and determining the azimuth and the quantity of the temperature measuring holes which are reserved in the shuttle kiln and meet the requirements of the sintering process and the temperature control. When a shuttle kiln is newly built and modified, a plurality of temperature measuring holes are reserved, so that thermocouples for measuring the kiln temperature can be conveniently inserted or taken out, and the magnitude calibration is carried out aperiodically according to the requirement; and the positions and the number of the temperature measuring holes are reasonably arranged, the design of the kiln structure is optimized, the firing process parameters are set, and a thermal system is formulated. According to the invention, by reserving the temperature measuring holes and calibrating the thermocouples on the shuttle kiln as required, accurate measurement in the temperature field distribution positioning and metering sense is achieved.
Description
Technical Field
The invention belongs to the technical field of temperature measurement and tracing, and particularly relates to a reserved design method, a monitoring system and a device for a shuttle kiln temperature measuring hole.
Background
The temperature control basis of the shuttle kiln is an on-line monitoring result of temperature sensors arranged on the kiln top wall, so that the accuracy of the measurement results of the temperature sensors directly influences the automatic adjustment of the temperature and the monitoring of the kiln temperature in the automatic shuttle kiln control system. If the displayed temperature value is lower than the actual measurement result, even if the quality of the product is not affected in a certain temperature control range, the corresponding energy consumption is increased, and unnecessary energy waste is caused.
The technical proposal of the prior art is as follows: typically, the installation location of the temperature sensor on the shuttle kiln is determined at the time of kiln design, rather than after field testing as the kiln is built. Because the number of the thermal parameters is large, the production period of the kiln is long, and the monitoring means are limited by other objective factors, the field test is very difficult, even the on-line test of some thermal instruments cannot be performed, the universality is poor, and the comprehensive monitoring result of all directions of the kiln is difficult to obtain.
Disadvantages of the prior art: the existing shuttle kiln temperature sensors are basically thermocouples and are fixed on the kiln, so that the existing shuttle kiln temperature sensors are not detached for calibration. At present, the on-line calibration of the thermocouples arranged on the kiln cannot be carried out at home, so that when the service time of the thermocouples on the kiln exceeds a certain period, the accuracy of the thermocouples on the kiln cannot be confirmed. Because the domestic study on the shuttle kiln temperature field is basically based on the test comparison analysis of the field test by a calculation model, the study cannot achieve accurate measurement in the temperature field distribution positioning and metering sense because the shuttle kiln has no reserved temperature measuring holes and thermocouples fixed on the shuttle kiln can not be calibrated according to the need and the like.
Through the above analysis, the problems and defects existing in the prior art are as follows: the shuttle kiln in the prior art has no reserved temperature measuring holes and the thermocouple fixed on the shuttle kiln has a plurality of problems that the shuttle kiln cannot be calibrated according to the need, and the accurate measurement in the temperature field distribution positioning and metering sense cannot be achieved.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a reserved design method, a monitoring system and a device for a shuttle kiln temperature measuring hole.
The invention discloses a reserved design method of a shuttle kiln temperature measuring hole, which comprises the following steps:
Step one, defining a testing interval of shuttle kiln temperature field distribution uniformity, temperature field stability, temperature field deviation and temperature field maximum temperature difference from a metering angle;
and step two, determining the azimuth and the number of the temperature measuring holes which are reserved in the shuttle kiln and meet the requirements of sintering technology and temperature control.
Further, when the shuttle kiln is newly built and modified, a plurality of temperature measuring holes are reserved, thermocouples for measuring the kiln temperature are conveniently inserted or taken out, and magnitude calibration is carried out aperiodically according to the requirement.
Further, the positions and the number of the temperature measuring holes are reasonably arranged, the design of the kiln structure is optimized, the sintering process parameters are set, and a thermal system is formulated.
A shuttle kiln temperature monitoring system, the monitoring system comprising:
the temperature measuring module is used for measuring the temperature of the shuttle kiln;
and the instrument calibration module is used for calibrating the temperature measuring instrument.
A shuttle kiln temperature measuring device is a thermocouple.
Further, the thermocouple is inserted into or taken out through a plurality of reserved temperature measuring holes when measuring the kiln temperature.
In combination with the technical scheme and the technical problems to be solved, the technical scheme to be protected has the following advantages and positive effects:
First, the invention determines the temperature field distribution in the kiln from the metering perspective through accurate measurement of the temperature in the shuttle kiln. Therefore, the invention can correctly reflect the actual working condition of the kiln by confirming the metering accuracy of the thermal measuring instrument,
Secondly, the invention provides a reserved design method of the temperature measuring holes of the shuttle kiln, which defines a test interval from the perspective of metering, and further determines the azimuth and the number of the temperature measuring holes so as to ensure the satisfaction of the sintering process and the temperature control requirements. When the shuttle kiln is newly built and modified, a plurality of temperature measuring holes are reserved, so that the thermocouple is conveniently inserted and taken out, and the flexible and accurate measurement of the kiln temperature is realized. Meanwhile, through reasonably arranging the temperature measuring holes, the structural design and the thermal system of the kiln are optimized, and the setting precision of sintering process parameters is improved.
In addition, the invention also provides a shuttle kiln temperature monitoring system which comprises a temperature measuring module and an instrument calibration module, and can measure the kiln temperature in real time and calibrate a temperature measuring instrument so as to ensure the accuracy of measured data.
Furthermore, the invention also provides a shuttle kiln temperature measuring device, namely a thermocouple. The thermocouple is inserted into or taken out from the reserved temperature measuring hole, so that the rapid and accurate measurement of the kiln temperature is realized.
In conclusion, the invention solves the problems of inaccurate and inflexible temperature measurement of the shuttle kiln in the prior art, improves the setting precision of sintering process parameters, optimizes the structural design of the kiln and obtains obvious technical progress.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a reserved design method of a shuttle kiln temperature measuring hole provided by an embodiment of the invention;
fig. 2 is a diagram of a shuttle kiln temperature monitoring system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Aiming at the problems existing in the prior art, the invention provides a reserved design method, a monitoring system and a device for a shuttle kiln temperature measuring hole.
As shown in fig. 1, the method for designing the reserved temperature measuring holes of the shuttle kiln according to the embodiment of the invention comprises the following steps:
Step one, defining a testing interval of shuttle kiln temperature field distribution uniformity, temperature field stability, temperature field deviation and temperature field maximum temperature difference from a metering angle;
and step two, determining the azimuth and the number of the temperature measuring holes which are reserved in the shuttle kiln and meet the requirements of sintering technology and temperature control.
When the shuttle kiln is newly built and modified, a plurality of temperature measuring holes are reserved, thermocouples for measuring the kiln temperature are conveniently inserted or taken out, and the magnitude calibration is carried out aperiodically according to the requirement.
And the positions and the number of the temperature measuring holes are reasonably arranged, the design of the kiln structure is optimized, the firing process parameters are set, and a thermal system is formulated.
As shown in fig. 2, the embodiment of the invention provides a shuttle kiln temperature monitoring system, which comprises:
the temperature measuring module is used for measuring the temperature of the shuttle kiln;
and the instrument calibration module is used for calibrating the temperature measuring instrument.
The embodiment of the invention provides a shuttle kiln temperature measuring device which is a thermocouple.
The thermocouple is inserted into or taken out through a plurality of reserved temperature measuring holes when measuring the kiln temperature.
The working principle of the design method for reserving the temperature measuring holes of the shuttle kiln and the working principle of the temperature monitoring system relate to a plurality of key technical steps and devices, and each link is used for ensuring the accuracy of temperature measurement and providing necessary control and feedback for the operation of the kiln. The following is a detailed working principle:
step one: definition of temperature field characteristics
1. Uniformity of temperature field distribution: this refers to whether the temperature distribution inside the shuttle kiln is uniform. By defining test intervals it is possible to determine which areas have a temperature gradient, which is important to ensure product quality.
2. Temperature field stability: this concerns whether the temperature change over time is smooth and should not have abrupt temperature jumps, which is critical to ensure consistency of the material properties during firing.
3. Temperature field deviation: the deviation between the measured temperature and the set temperature is a key indicator for evaluating the performance of the control system.
4. Maximum temperature difference of temperature field: the difference between the highest and lowest temperature points in the kiln, which parameter affects the homogeneity and firing effect of the product.
Step two: arrangement of temperature measuring holes
Determining the azimuth and the number: and determining the optimal position and number of the temperature measuring holes according to the temperature field characteristic evaluation in the first step so as to cover the key area in a full range and provide enough data to support temperature control.
Reserving a temperature measuring hole: in the design and construction stage of shuttle kiln, proper amount of temp. -measuring holes are reserved so as to insert thermocouple for temp. measurement. These holes also facilitate removal and insertion of the thermocouple, and facilitate subsequent maintenance and calibration.
The temperature monitoring system comprises:
1. And a temperature measurement module: the thermocouple is used as a core temperature measuring element, has the characteristics of quick response and high accuracy, and is suitable for continuous temperature monitoring in a high-temperature environment.
2. An instrument calibration module: the thermocouples and related temperature measuring equipment are calibrated regularly, and accuracy and reliability of data are ensured. The calibration process includes calibration of the thermocouple, checking its match with the display device, etc.
Use of thermocouples:
The operation mode is as follows: the thermocouple is inserted into the kiln through the reserved temperature measuring hole and is directly contacted with the measured environment. The temperature measurement principle is based on the fact that the joints of two different metal materials generate potential differences under the action of temperature difference, the potential differences are in linear relation with temperature, and the temperature value can be accurately calculated through measuring the potential differences.
Extraction and insertion: for maintenance and calibration, thermocouples need to be able to be easily removed from the thermowell and reinserted.
Through the steps, the temperature monitoring system of the shuttle kiln can provide high-efficiency and accurate temperature measurement, thereby helping to optimize the sintering process and improving the product quality and the production efficiency.
The following are two specific application examples of the reserved design method for the temperature measuring hole of the shuttle kiln:
Application example one: shuttle kiln temperature measuring hole design in ceramic product production
In the production process of ceramic products, the shuttle kiln is used as key firing equipment, and the accuracy of temperature control directly influences the quality of the ceramic products. Therefore, according to the reserved design method of the shuttle kiln temperature measuring hole, the testing interval of kiln temperature field distribution uniformity, temperature field stability, temperature field deviation and maximum temperature difference of the temperature field is defined from the metering perspective according to the firing process requirements of ceramic products.
Next, we determine the orientation and number of the thermometric orifices. Considering the placing position of ceramic products in the kiln and the heat transfer rule in the sintering process, temperature measuring holes are reserved at the top, the bottom and two sides of the kiln, so that the temperature distribution condition in the kiln can be comprehensively and accurately reflected.
In the actual production process, a thermocouple is inserted through a reserved temperature measuring hole at regular intervals, the kiln temperature is measured in real time, the firing process parameters are adjusted according to the measurement result, the thermal system is optimized, and the firing quality of ceramic products is ensured.
Application example two: shuttle kiln temperature measuring hole design in refractory material production
Shuttle kilns also play an important role in the production of refractory materials. The accuracy of temperature control is particularly important because of the high firing temperature requirements of the refractory material.
According to the reserved design method of the shuttle kiln temperature measuring hole, a testing interval of a kiln temperature field is defined according to the firing process requirements of refractory materials. Considering the high temperature stability and thermal expansibility of the refractory material in the firing process, temperature measuring holes are reserved at key positions of the kiln so as to accurately measure the temperature distribution condition in the kiln.
In the actual production process, a thermocouple is inserted into a reserved temperature measuring hole, and the change condition of the kiln temperature is monitored in real time. Meanwhile, the temperature measuring instrument is calibrated regularly, and accuracy of measured data is guaranteed. By accurately controlling the kiln temperature, the firing quality of the refractory material is successfully improved, the rejection rate is reduced, and remarkable economic benefit is obtained.
The two application embodiments fully show the practicability and effectiveness of the invention in the design of the shuttle kiln temperature measuring hole, and provide powerful technical support for kiln temperature control in different industries.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention will be apparent to those skilled in the art within the scope of the present invention.
Claims (8)
1. The reserved design method of the shuttle kiln temperature measuring hole is characterized by comprising the following steps of:
Step one, defining a testing interval of shuttle kiln temperature field distribution uniformity, temperature field stability, temperature field deviation and temperature field maximum temperature difference from a metering angle;
and step two, determining the azimuth and the number of the temperature measuring holes which are reserved in the shuttle kiln and meet the requirements of sintering technology and temperature control.
2. The method for designing the reserved temperature measuring holes of the shuttle kiln according to claim 1, wherein a plurality of temperature measuring holes are reserved when the shuttle kiln is newly built and modified, so that thermocouples for measuring the kiln temperature can be conveniently inserted or taken out, and the magnitude calibration can be carried out aperiodically according to the requirement.
3. The method for designing the reserved temperature measuring holes of the shuttle kiln according to claim 1, wherein the orientations and the number of the temperature measuring holes are reasonably arranged, the design of the kiln structure is optimized, the firing process parameters are set, and a thermal system is established.
4. A shuttle kiln temperature monitoring system, the monitoring system comprising:
the temperature measuring module is used for measuring the temperature of the shuttle kiln;
and the instrument calibration module is used for calibrating the temperature measuring instrument.
5. The shuttle kiln temperature measuring device is characterized by being a thermocouple.
6. The shuttle kiln temperature measurement device as claimed in claim 5, wherein the thermocouple is inserted into or removed from the furnace through a plurality of reserved temperature measurement holes when measuring the temperature of the furnace.
7. The reserved design method of the shuttle kiln temperature measuring hole is characterized by comprising the following steps of:
(1) According to the principle of metrology, a testing interval of temperature field distribution uniformity, temperature field stability, temperature field deviation and temperature field maximum temperature difference of the shuttle kiln is defined;
(2) Based on specific requirements and temperature control requirements of a sintering process, the azimuth and the number of temperature measuring holes which should be reserved in the shuttle kiln are determined, so that comprehensive and accurate monitoring of temperature distribution in the kiln is ensured.
8. A reserving design method of a shuttle kiln temperature measuring hole is applied to the new construction and reconstruction process of a shuttle kiln and is characterized in that,
(1) Reserving a plurality of temperature measuring holes at key positions of the shuttle kiln so as to facilitate the insertion or the extraction of thermocouples and realize flexible and real-time measurement of kiln temperature;
(2) According to the requirements of kiln structure, firing process parameters and thermal system, the orientation and the number of the temperature measuring holes are reasonably arranged so as to optimize kiln design, improve the setting precision of the firing process parameters and ensure the stability of product quality.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410506101.XA CN118328727A (en) | 2024-04-25 | 2024-04-25 | Reservation design method, monitoring system and device for shuttle kiln temperature measuring hole |
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| CN202410506101.XA CN118328727A (en) | 2024-04-25 | 2024-04-25 | Reservation design method, monitoring system and device for shuttle kiln temperature measuring hole |
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