CN-121977712-A - High-precision bent block temperature measurement sensor

CN121977712ACN 121977712 ACN121977712 ACN 121977712ACN-121977712-A

Abstract

The invention discloses a high-precision curve temperature measuring sensor, which particularly relates to the technical field of temperature sensors, and comprises a stainless steel shell, a temperature measuring resistor, heat conducting glue, heat insulating cotton and copper and aluminum powder compounds, wherein the stainless steel shell is used for protecting internal elements of the sensor from external environment interference and mechanical damage, the temperature measuring resistor is arranged in the stainless steel shell and is used for directly measuring the temperature of a curve center in the curve block, the heat conducting glue is filled between the temperature measuring resistor and the stainless steel shell and ensures the high efficiency of heat conduction between the temperature measuring resistor and the curve block, the heat insulating cotton is wrapped in a specific area outside the stainless steel shell and reduces the interference of the external environment temperature on the measuring result of the temperature measuring resistor, and the copper and aluminum powder compounds are coated in the stainless steel shell and are used for improving the thermal response speed and the temperature measuring precision of the sensor.

Inventors

WANG GUANQUN
MA SHURAN
MAN MAOLI
YU HONGTAO
JI CHUNYAN
Du Yuzhe
JIA YUHAN
Qian Shipu
LI MINGZHE
MA SHAOYANG

Assignees

河北石油职业技术大学

Dates

Publication Date: 20260505
Application Date: 20260312

Claims (6)

1. A high-precision bent block temperature measurement sensor is characterized by comprising a stainless steel shell (1) for protecting internal elements of the sensor from being interfered by external environment and mechanically damaged, a temperature measurement resistor (2) arranged inside the stainless steel shell (1) and used for directly measuring the temperature of a bent center inside a bent block, heat conduction glue (3) filled between the temperature measurement resistor (2) and the stainless steel shell (1) and used for ensuring the high efficiency of heat conduction between the temperature measurement resistor (2) and the inside of the bent block, heat insulation cotton (4) wrapped in a specific area outside the stainless steel shell (1) and used for reducing the interference of the external environment temperature on the measurement result of the temperature measurement resistor (2), and copper and aluminum powder compounds (5) coated inside the stainless steel shell (1) and used for improving the thermal response speed and the temperature measurement precision of the sensor.
2. The high-precision bent block temperature measurement sensor of claim 1, wherein the stainless steel shell (1) is made of food-grade stainless steel materials, so that the sensor cannot pollute the bent block when contacting the bent block, and meets the sanitation standard of the white wine brewing industry.
3. The high-precision bent block temperature measurement sensor of claim 1, wherein the temperature measurement resistor (2) is a high-precision and fast-response thermistor or platinum resistor, the temperature measurement range of which covers the variation range of the temperature of a bent center in the process of fermenting Daqu, and the temperature measurement precision is within +/-0.1 ℃.
4. The high-precision bent block temperature measurement sensor of claim 1, wherein the heat conducting adhesive (3) has excellent heat conduction performance and chemical stability, can be used for a long time in a high-temperature and high-humidity environment without failure, and ensures the continuity and stability of heat conduction between the temperature measuring resistor (2) and the inside of the bent block.
5. The high-precision bent block temperature measurement sensor of claim 1, wherein the heat insulation cotton (4) is made of a material with low heat conductivity coefficient, and the thickness and the coverage range of the heat insulation cotton are optimally designed according to the specific use environment and the temperature measurement requirement of the sensor.
6. The high-precision curve block temperature measurement sensor of claim 1, wherein the copper and aluminum powder compound (5) is coated inside the stainless steel shell (1) through a specific process to form a layer of high-efficiency heat conduction layer, so that the thermal response speed and the temperature measurement accuracy of the sensor are remarkably improved, and the dynamic change of the curve core temperature can be accurately captured in real time.

Description

High-precision bent block temperature measurement sensor Technical Field The invention relates to the technical field of temperature sensors, in particular to a high-precision bent block temperature measuring sensor. Background The white spirit industry is a core pillar of the light industry in China, daqu is used as a core saccharifying agent, a fermenting agent and a flavoring agent for brewing white spirit, the quality of the Daqu directly determines the yield, the flavor and the quality grade of the white spirit, and the cost control and the quality improvement of a Daqu culture link are key break-outs for reducing the cost and enhancing the efficiency of white spirit enterprises; In the process of fermenting Daqu, the growth and propagation of microorganisms have strict requirements on environmental parameters such as temperature and humidity, the temperature of a yeast core is a core index for reflecting the fermentation state of a yeast block and controlling the fermentation quality, and the accurate monitoring of the temperature of the yeast core is a basis for realizing the accurate regulation and control of the fermentation environment of Daqu; in the prior art, a common thermometer is mainly used for manual detection by a temperature measuring means for Daqu fermentation, the reading is difficult, the temperature meter is inaccurate, and the temperature meter cannot be pulled out due to the fact that a bent block is hardened after the thermometer is used up, so that the temperature meter is abandoned together with the used bent block, part of researches are tried to introduce a new temperature measuring technology, but no mature sensor product adapting to a temperature measuring scene of the bent block is formed, and core defects and defects are concentrated in the following aspects: temperature measurement object deviates from the core, unfocused curve temperature monitoring: In the prior art, the temperature and humidity of the environment of the yeast room can be monitored only, the temperature of the yeast center inside the yeast block cannot be directly monitored, the temperature of the environment of the yeast room and the actual fermentation temperature of the yeast center are obviously different, the fermentation state of the yeast block cannot be accurately reflected only by the environment temperature, the follow-up regulation decision lacks accurate data support, and the fermentation quality of the yeast block cannot be guaranteed; the temperature measurement precision of the crank is low, the response is delayed, and the error is large: few technical schemes for attempting to monitor the temperature of the yeast core do not solve the core technical problems of temperature measurement of the yeast core, and the temperature measurement sensor has the problems of long response time and large measurement error (the error is generally more than +/-0.5 ℃ and the partial manual detection error is more than +/-1 ℃), so that dynamic change of the temperature of the yeast core cannot be accurately captured in real time, the control lag of the fermentation environment is easy to cause, and the core indexes such as the saccharification power, the fermentation power and the like of the yeast are influenced; the temperature measuring mode is easy to damage the bent block, resulting in fermentation losses: If the existing temperature measurement means try to contact the crank, a non-special probe is mostly adopted, the structure of the crank is easy to damage, the fermentation environment is polluted, the crank is deteriorated and scrapped, and the raw material loss cost is increased; Lack of customized design, suitability and practicality are not enough: The national research on Daqu fermentation is small, the industrial attention and investment are insufficient, a temperature sensor custom designed for physical characteristics of a bent block and fermentation process characteristics does not appear, the existing general equipment has the problems of unfit probe size, material quality, incapability of adjusting data sampling frequency and the like, the actual process requirements of Daqu production cannot be met, and engineering and large-scale application are difficult to realize; Therefore, a high-precision bent block temperature measuring sensor is provided for the problems. Disclosure of Invention In order to overcome the above-mentioned drawbacks of the prior art, an embodiment of the present invention provides a high-precision flexure block temperature sensor to solve the above-mentioned problems set forth in the background art. The high-precision bent block temperature measuring sensor comprises a stainless steel shell, a temperature measuring resistor, heat conducting glue, heat insulating cotton and copper and aluminum powder compounds, wherein the stainless steel shell is used for protecting internal elements of the sensor from external environment interference and mechanical damage, the