WO2024011712A1 - 一种精密测温结构 - Google Patents

一种精密测温结构 Download PDF

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Publication number
WO2024011712A1
WO2024011712A1 PCT/CN2022/113834 CN2022113834W WO2024011712A1 WO 2024011712 A1 WO2024011712 A1 WO 2024011712A1 CN 2022113834 W CN2022113834 W CN 2022113834W WO 2024011712 A1 WO2024011712 A1 WO 2024011712A1
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temperature
temperature measurement
contact tube
silver
hole
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PCT/CN2022/113834
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English (en)
French (fr)
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秦晓峰
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上海登杰机器设备有限公司
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Publication of WO2024011712A1 publication Critical patent/WO2024011712A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • G01K1/18—Special arrangements for conducting heat from the object to the sensitive element for reducing thermal inertia
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer

Definitions

  • the invention relates to the technical field of industrial temperature measurement structures, and in particular to a precision temperature measurement structure for measuring the temperature of metal bodies (especially various steel materials).
  • Metal heating and temperature measurement and temperature control are widely used in various industries. To control the temperature, it is necessary to measure the temperature. To measure the temperature, a temperature measuring probe is used. Most temperature measuring probes are cylindrical in shape (especially PT100). The traditional one is direct Put the temperature measuring probe in contact with the metal to be measured. The most commonly used metal in the manufacturing industry is steel metal. To measure the temperature of the metal body (especially steel with various hardnesses that have been heat-treated), most of the metal bodies (especially Most of them are made of steel). The traditional method of measuring temperature is to directly put the temperature measuring probe into the hole of the metal (especially most of them are made of steel) whose temperature is being measured.
  • the gap between the hole and the temperature measuring probe cannot be very small.
  • the temperature measuring probe and the metal of the hole wall cannot be in close contact or close to close contact (otherwise the temperature measuring probe cannot be inserted) ), which causes temperature measurement errors, so a special grease (drying or non-drying) is often used to compensate. This compensation is limited, and because it will evaporate less during use, this compensation will decrease over time. weaken.
  • the present invention completely abandons the original structure and designs a temperature measurement structure that uses soft and stable high-purity silver as the medium.
  • the present invention provides a precision temperature measurement structure, which uses soft and stable high-purity silver as a medium for temperature measurement.
  • the inner wall of the hole for temperature measurement on the metal body to be measured passes through the silver
  • the contact tube made of silver material accurately conducts temperature to the outer circle of the temperature probe.
  • the contact tube made of silver accurately transmits temperature, and its structure is long-term and stable, and it is environmentally friendly to use.
  • the invention provides a precision temperature measurement structure, which includes a metal body to be measured, a temperature measurement probe and a contact tube (tubular with two empty ends or tubular with one empty end);
  • the metal body to be measured is provided with a hole for temperature measurement
  • the contact tube is installed closely inside the hole for temperature measurement
  • the outside of the contact tube is in contact with the metal body to be measured for temperature measurement.
  • the gap between the inner walls of the temperature hole is controlled to be less than 0.05mm
  • the temperature measuring probe is installed closely inside the contact tube
  • the gap between the inner wall of the contact tube and the outside of the temperature measuring probe is controlled to be within 0.2mm or less
  • the contact tube is made of silver.
  • the gap between the silver contact tube and the temperature measurement hole on the metal body to be measured can be controlled below 0.05mm, and the two can also be completely fitted without gaps.
  • the gap between the silver contact tube and the internal temperature probe is controlled below 0.2mm.
  • the thermal conductivity of silver (K) is 429, which is better than gold (317) and copper (401). Its price is only about 1% of gold. Silver is much softer than copper and has stable properties, so the contact tube is made of silver. According to actual research and testing, the higher the purity of silver, the better the use effect.
  • the silver contact tube is used as the medium because it is soft, stable and easy to process, forming a hole-type temperature measurement (probe) structure with good permanent contact, close contact, accurate temperature measurement, and long-term stability.
  • a further improvement is that the contact tube has a hollow interior and an open end structure.
  • the contact tube can also be provided with a hollow interior structure and an open end structure.
  • the final shape of the silver contact tube is tubular.
  • the hollow internal contact tube can be directly installed into the temperature measurement hole on the metal body to be measured. It can also be made into a solid or tubular shape with a margin.
  • the contact tube is first compacted and contacted with the hole for temperature measurement on the metal body to be measured, and then a high-precision hole is formed. Due to the characteristics of silver, it is very easy to make a high-precision hole. hole.
  • a further improvement is that the temperature measuring probe has a cylindrical shape. Since gaps are likely to occur when a cylindrical temperature measuring probe is installed on a metal body to be measured, the structure in this application can be well applied to the installation of cylindrical temperature measuring probes.
  • the metal (quenched alloy steel) temperature control of our vulcanizer After actual research and testing, the metal (quenched alloy steel) temperature control of our vulcanizer, the metal (quenched alloy steel) temperature control of the Mooney viscometer, and the metal (stainless steel) temperature control of the rapid plasticity meter are all approved by this application.
  • the implementation of the structure has proved to have very good practical effects, that is, high-precision and stable temperature measurement. This will make the computer software temperature control correspondingly stable, and the ability to actually control the temperature can be truly and easily reached 0.01 degrees. area, and the structure can also be used in other areas with high requirements for temperature control.
  • the present invention has the following beneficial effects:
  • This invention completely abandons the previous single punching structure pattern. It uses soft and stable high-purity silver as the medium for temperature measurement.
  • the outside of the silver contact tube closely fits the inside of the hole used for temperature measurement on the metal body to be measured. wall, the outer side of the temperature measurement probe is closely attached to the inner wall of the silver contact tube, and the inner wall of the hole used for temperature measurement of the metal body to be measured passes through the silver contact tube and finally accurately conducts temperature to the outer circle of the temperature measurement probe, and the silver
  • the contact tube accurately transmits temperature, the entire temperature measurement is more accurate, and the temperature control is stable to achieve the purpose of permanent precision contact temperature measurement and control. It can be widely used in many places involving metal temperature control, and its significance is very wide.
  • Figure 1 is a schematic structural diagram of the precision temperature measurement structure of the present invention
  • the specific reference numbers are: the metal body to be measured 1, the hole used for temperature measurement 2, the contact tube 3, and the temperature measurement probe 4.
  • the embodiment of the present invention discloses a precision temperature measurement structure, which includes a metal body to be measured 1, a temperature measurement probe 4 and a contact tube 3;
  • a hole 2 for temperature measurement is opened on the metal body 1 to be measured.
  • the contact tube 3 is closely installed inside the hole 2 for temperature measurement.
  • the outside of the contact tube 3 is in contact with the hole 2 for temperature measurement on the metal body 1 to be measured.
  • the gap between the inner walls is controlled below 0.05mm.
  • the temperature measuring probe 4 is installed closely inside the contact tube 3.
  • the gap between the inner wall of the contact tube 3 and the outside of the temperature measuring probe 4 is controlled below 0.2mm.
  • the material is silver.
  • the gap between the silver contact tube 3 and the temperature measurement hole 2 on the metal body 1 to be measured can be controlled below 0.05mm, and the two can also be completely fitted without gaps.
  • the gap between the silver contact tube 3 and the internal temperature measuring probe 4 is controlled to be less than 0.2mm.
  • the thermal conductivity of silver (K) is 429, which is better than gold (317) and copper (401). Its price is only about 1% of gold. Silver is much softer than copper and has stable properties, so the contact tube 3 is made of silver. Moreover, actual research and testing have shown that the higher the purity of silver, the better the use effect.
  • the contact tube 3 made of silver is used as a medium because it is soft, stable, and easy to process, forming a hole-type temperature measurement (probe) structure with good permanent contact, close contact, accurate temperature measurement, and long-term stability.
  • the contact tube 3 has a hollow interior and an open end structure.
  • the contact tube 3 may also be provided with a hollow interior structure and an open end structure.
  • the final shape of the silver contact tube 3 is tubular.
  • the hollow internal contact tube 3 can be directly installed into the temperature measurement hole 2 on the metal body 1 to be measured. It can also be made into a solid or tubular shape with a margin.
  • the contact tube 3 is first compacted and contacted with the hole 2 for temperature measurement on the metal body 1 to be measured, and then a high-precision hole is formed. Due to the characteristics of silver, it is very easy to make. High precision holes.
  • the temperature measuring probe 4 has a cylindrical shape. Since gaps are likely to occur when the cylindrical temperature measuring probe 4 is installed on the metal body 1 to be measured, the structure in this application can be well applied to the installation of the cylindrical temperature measuring probe 4 .
  • the material of the metal body 1 to be measured is steel, alloy steel or stainless steel.
  • the wall thickness of the contact tube 3 The thicker the wall thickness of the contact tube 3, the higher the cost; the thinner the wall thickness of the contact tube 3, the more difficult it is to process and drill holes. Considering the above factors, it is preferable to control the wall thickness of the contact tube 3 to 0.2-2 mm.
  • the metal (quenched alloy steel) temperature control of our vulcanizer After actual research and testing, the metal (quenched alloy steel) temperature control of our vulcanizer, the metal (quenched alloy steel) temperature control of the Mooney viscometer, and the metal (stainless steel) temperature control of the rapid plasticity meter are all approved by this application.
  • the implementation of the structure has proved to have very good practical effects, that is, high-precision and stable temperature measurement. This will make the computer software temperature control correspondingly stable, and the ability to actually control the temperature can be truly and easily reached 0.01 degrees. area, and the structure can also be used in other areas with high requirements for temperature control.
  • this precision temperature measurement structure is used to control the temperature of a vulcanizer, after half a year of use, the temperature of the material inside the instrument is constantly controlled at 190°C. After testing with a temperature measuring probe, the temperature after the test ranges from 189.90°C to 190.10°C.
  • the temperature measurement probe When the existing structure is adopted, that is, a hole for temperature measurement is directly opened on the metal body to be measured, and the temperature measurement probe is directly installed in the hole for temperature measurement, and the material temperature inside the instrument is constantly controlled at 190°C. After the temperature measurement probe test, the temperature at the beginning of the test was 189.90°C to 190.10°C. As time went on, in the first month, the temperature measurement temperature gradually increased and changed to 190.20°C to 190.40°C. In the third month, the temperature measurement The test temperature gradually increased from 190.60°C to 190.80°C. In the sixth month, the temperature measurement temperature gradually increased from 191.00°C to 191.20°C. In the end, because the difference between the test temperature value and the actual temperature value was too large, the temperature measurement probe needed to be inspected. Perform maintenance.
  • the present invention completely abandons the previous single punching structure pattern. It uses soft and stable high-purity silver as the medium for temperature measurement.
  • the outside of the contact tube 3 made of silver is tightly attached to the metal body 1 to be measured for measurement.
  • the inner wall of the temperature hole 2, the outer side of the temperature measurement probe 4 is closely attached to the inner wall of the silver contact tube 3, and the inner wall of the hole 2 of the measured metal body 1 for temperature measurement passes through the silver contact tube 3 and is finally accurately guided.
  • Temperature to the outer circle of the temperature measurement probe 4 the silver contact tube accurately transmits the temperature, the entire temperature measurement is more accurate, the temperature control is stable, and the purpose of permanent precision contact temperature measurement and temperature control is achieved, so that many places involving metal temperature control can be widely used Application, its significance is very broad.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

一种精密测温结构，包括被测金属体（1）、测温探头（4）和接触管（3）；被测金属体（1）上开设有用于测温的孔（2），接触管（3）紧密贴合安装至被测金属体（1）上用于测温的孔（2）内部，接触管（3）外侧与被测金属体（1）上用于测温的孔（2）内侧壁之间的间隙控制在0.05mm以下，接触管（3）内部紧密贴合安装有测温探头（4），接触管（3）内侧壁与测温探头（4）外侧之间的间隙控制在0.2mm以下，接触管（3）的材质为银。精密测温结构采用软而稳定的高纯度银作为介质进行测温，被测金属体（1）用于测温的孔（2）内侧壁通过银材质的接触管（3）最终精确导温至测温探头（4）外圆，银材质的接触管（3）精确传递温度，且结构长久稳定，使用环保。

Description

一种精密测温结构 技术领域
本发明涉及工业用测温结构技术领域，具体涉及一种用于测量金属体(尤其是各种钢材质)的温度的精密测温结构。
背景技术
金属的加热及测温控温在各行各业中应用十分普遍,要控制温度就要测量温度,测量温度都要用测温探头，测温探头多数为圆柱外形(PT100尤其)，传统的是直接把测温探头接触这一被测金属，制造业上应用最多的金属是钢质金属,要测量金属体(尤其多数是各种热处理过的各种硬度钢)的温度，多数在金属体(尤其多数是钢质)上打孔，传统的测量温度都是直接把测温探头放入被测温度的此金属(尤其多数是钢质)上的孔中。
由于整体加工及或各种热处理后孔多少会变形一点，所以孔和测温探头的间隙不能很小，测温探头和此孔壁金属不可能紧密接触或接近紧密接触(否则测温探头插不进)，这就造成测温误差，所以时常用一种特殊脂(干或不会干)弥补，这种弥补是有限的，而且由于使用时会挥发变少，这种弥补会随着时间而减弱。
还有许多方法，要么脱离打孔而不方便，要么测温探头装上拿不下来替换或更脆弱而不永久可靠。
而本发明完全摒弃原来的结构，设计了一种利用软而稳定的高纯度银作为介质的测温结构。
发明内容
为了解决上述背景技术中存在的问题，本发明提供一种精密测温结构，其采用软而稳定的高纯度银作为介质进行测温，被测金属体上用于测温的孔内侧壁通过银材质的接触管最终精确导温至测温探头外圆，银材质的接触管精确传递温度，且结构长久稳定，使用环保。
为了解实现上述目的，本发明采用以下技术方案：
本发明提供一种精密测温结构，包括被测金属体、测温探头和接触管(二头空的管状或一头空的管状)；
所述被测金属体上开设有用于测温的孔，所述接触管紧密贴合安装至所述用于测温的孔内部，所述接触管外侧与所述被测金属体上用于测温的孔内侧壁之间的间隙控制在0.05mm以下，所述接触管内部紧密贴合安装有所述测温探头，所述接触管内侧壁与所述测温探头外侧之间的间隙控制在0.2mm以下，所述接触管的材质为银。
上述技术方案中，银材质的接触管与被测金属体上用于测温的孔之间的间隙能控制在 0.05mm以下，两者也可实现完全贴合无间隙。
银材质的接触管与内部的测温探头之间的间隙控制在0.2mm以下。
银的导热系数(K)是429,优于金(317),铜(401),其价格仅为金的1％左右，银比铜软许多且性态稳定，所以接触管选用银材质，而且经实际研究测试，银的纯度越高，使用效果越好。
银材质的接触管作为介质,因其软而且稳定、易加工,形成永久性接触好的孔型测温(探头)结构，接触紧密，温度测量准确，并且长久稳定。
进一步地改进在于，所述接触管为内部中空、一端开口的结构，接触管也可以设置为内部中空、两端开口的结构。
银材质的接触管最终形状是管状的，在安装使用时，可以直接将内部中空的接触管直接安装至被测金属体上的用于测温的孔内。也可以采用实心或有余量的管状，先夯实接触管与被测金属体上的用于测温的孔接触之后，再形成高精度的孔，由于银的特性而十分容易制成高精度的孔。
进一步地改进在于，所述测温探头外形为圆柱状。由于圆柱状的测温探头安装至被测金属体上时容易发生间隙，因此，本申请中的结构可以很好的应用于圆柱状测温探头的安装。
经过实际研究测试，我司的硫化仪的金属(淬火合金钢)控温，门尼粘度计的金属(淬火合金钢)控温，快速塑性计的金属(不锈钢)控温，都是本申请中的结构进行实施，都印证有很好的实际效果,即高精度，稳定测温,这样会促使计算机软件控温也相应稳定,可以很真正的把实际控制温度的能力很真实容易地达到0.01度区域，并且该结构在其他各领域的高要求控温也都可以用到。
与现有技术相比，本发明具有如下有益效果：
本发明完全摒弃之前原来单一的打孔结构格局，其采用软而稳定的高纯度银作为介质进行测温，银材质的接触管外侧紧密贴合被测金属体上用于测温的孔的内侧壁，测温探头外侧紧密贴合银材质的接触管的内侧壁，被测金属体用于测温的孔内侧壁通过银材质的接触管最终精确导温至测温探头外圆，银材质的接触管精确传递温度，整个测温更加精准，控温稳定而达到永久精密接触测温控温的目的，使许多涉及金属控温的地方都可广泛应用，其意义十分广泛。
附图说明
下面结合附图与具体实施例对本发明作进一步详细说明。
图1为本发明中精密测温结构的结构示意图；
其中，具体附图标记为：被测金属体1，用于测温的孔2，接触管3，测温探头4。
具体实施方式
本发明的实施例公开了一种精密测温结构，包括被测金属体1、测温探头4和接触管3；
被测金属体1上开设有用于测温的孔2，接触管3紧密贴合安装至用于测温的孔2内部，接触管3外侧与被测金属体1上用于测温的孔2内侧壁之间的间隙控制在0.05mm以下，接触管3内部紧密贴合安装有测温探头4，接触管3内侧壁与测温探头4外侧之间的间隙控制在0.2mm以下，接触管的材质为银。
上述技术方案中，银材质的接触管3与被测金属体1上用于测温的孔2之间的间隙能控制在0.05mm以下，两者也可实现完全贴合无间隙。
银材质的接触管3与内部的测温探头4之间的间隙控制在0.2mm以下。
银的导热系数(K)是429,优于金(317),铜(401),其价格仅为金的1％左右，银比铜软许多且性态稳定，所以接触管3选用银材质，而且经实际研究测试，银的纯度越高，使用效果越好。
银材质的接触管3作为介质,因其软而且稳定、易加工,形成永久性接触好的孔型测温(探头)结构，接触紧密，温度测量准确，并且长久稳定。
具体地，接触管3为内部中空、一端开口的结构，接触管3也可以设置为内部中空、两端开口的结构。
银材质的接触管3最终形状是管状的，在安装使用时，可以直接将内部中空的接触管3直接安装至被测金属体1上的用于测温的孔2内。也可以采用实心或有余量的管状，先夯实接触管3与被测金属体1上的用于测温的孔2接触之后，再形成高精度的孔，由于银的特性而十分容易制成高精度的孔。
具体地，测温探头4外形为圆柱状。由于圆柱状的测温探头4安装至被测金属体1上时容易发生间隙，因此，本申请中的结构可以很好的应用于圆柱状测温探头4的安装。
具体地，被测金属体1的材质为钢、合金钢或不锈钢。
接触管3的壁厚越厚，其成本越高，接触管3的壁厚越薄，其加工打孔的难度增加，考虑到上述因素，优选将接触管3的壁厚控制在0.2-2mm。
经过实际研究测试，我司的硫化仪的金属(淬火合金钢)控温，门尼粘度计的金属(淬火合金钢)控温，快速塑性计的金属(不锈钢)控温，都是本申请中的结构进行实施，都印证有很好的实际效果,即高精度，稳定测温,这样会促使计算机软件控温也相应稳定,可以很真正的把实际控制温度的能力很真实容易地达到0.01度区域，并且该结构在其他各领域的高要求控温也都可以用到。
将该精密测温结构用于硫化仪温度控制时，使用半年后，将仪器内部物料温度恒定控制在190℃，经测温探头测试，测试后的温度在189.90℃到190.10℃。
当采用现有的结构，即直接在被测金属体上开设有用于测温的孔，再将测温探头直接安装在用于测温的孔内，将仪器内部物料温度恒定控制在190℃，经测温探头测试刚开始测试后的温度在189.90℃到190.10℃,随着时间的延长，第一个月,测温测试温度上升逐渐变化为190.20℃到190.40℃，第三个月,测温测试温度上升逐渐变化为190.60℃到190.80℃，第六个月,测温测试温度上升逐渐变化为191.00℃到191.20℃，最终因测试温度值与实际温度值差值过大，要对测温探头进行维护。
综上，本发明完全摒弃之前原来单一的打孔结构格局，其采用软而稳定的高纯度银作为介质进行测温，银材质的接触管3外侧紧密贴合被测金属体1上用于测温的孔2的内侧壁，测温探头4外侧紧密贴合银材质的接触管3的内侧壁，被测金属体1用于测温的孔2内侧壁通过银材质的接触管3最终精确导温至测温探头4外圆，银材质的接触管精确传递温度，整个测温更加精准，控温稳定而达到永久精密接触测温控温的目的，使许多涉及金属控温的地方都可广泛应用，其意义十分广泛。
以上应用了具体个例对本发明进行阐述，只是用于帮助理解本发明，并不用以限制本发明。对于本发明所属技术领域的技术人员，依据本发明的思想，还可以做出若干简单推演、变形或替换。

Claims (1)

  1. 一种精密测温结构，其特征在于，包括被测金属体、测温探头和接触管；
    所述被测金属体上开设有用于测温的孔，所述接触管紧密贴合安装至所述用于测温的孔内部，所述接触管外侧与所述被测金属体上用于测温的孔内侧壁之间的间隙控制在0.05mm以下，所述接触管内部紧密贴合安装有所述测温探头，所述接触管内侧壁与所述测温探头外侧之间的间隙控制在0.2mm以下，所述接触管的材质为银。
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US20040213323A1 (en) * 2003-04-25 2004-10-28 Universal Leaf Tobacco Company, Inc. Packed product temperature measuring device
CN101968385A (zh) * 2010-09-30 2011-02-09 武汉钢铁(集团)公司 一种炉内钢坯温度跟踪测试的方法
JP2016151479A (ja) * 2015-02-17 2016-08-22 ジヤトコ株式会社 プレート温度計測装置
CN107097392A (zh) * 2017-06-13 2017-08-29 苏州艾盾合金材料有限公司 一种高精度测温挤出机内衬套及其生产工艺
CN110044504A (zh) * 2019-05-29 2019-07-23 昆山市富川机电科技有限公司 一种测温结构、轴承测温装置以及绞线机

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US20040213323A1 (en) * 2003-04-25 2004-10-28 Universal Leaf Tobacco Company, Inc. Packed product temperature measuring device
CN101968385A (zh) * 2010-09-30 2011-02-09 武汉钢铁(集团)公司 一种炉内钢坯温度跟踪测试的方法
JP2016151479A (ja) * 2015-02-17 2016-08-22 ジヤトコ株式会社 プレート温度計測装置
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