阅读说明：本技术 一种基于复杂理化处理工艺的加权平均温度测量方法与传感器 (Weighted average temperature measurement method and sensor based on complex physicochemical treatment process ) 是由 王健安 王稚隽 高斯明 吴顺林 詹丽萍 于 2020-11-19 设计创作，主要内容包括：本发明公开了一种基于复杂理化处理工艺的加权平均温度测量方法与传感器,包括以下步骤：S1：判断是否有热电偶断偶；S2：判断温度点的变化；S3：将温度点由高到低排序成；S4：判断是否有温度点比差很大；S5：加权平均运算；S6：测量值输出；所述接线盒上安装有第一热电偶、第二热电偶、第三热电偶、第四热电偶和第五热电偶,所述接线盒位于第一热电偶、第二热电偶、第三热电偶、第四热电偶和第五热电偶的外侧安装有保护套管,所述保护套管的外侧安装有安装法兰。本发明,经加权平均后作为一点温度检测点的分布式加权平均温度传感器,在相对符合非量化的生物质裂解状态要求的前提下,有效克服了温度波动对控制的影响。(The invention discloses a weighted average temperature measuring method and a sensor based on a complex physicochemical treatment process, which comprises the following steps: s1: judging whether a thermocouple is disconnected; s2: judging the change of the temperature point; s3: will be provided with The temperature points are ordered from high to low (ii) a S4: judging whether a temperature point ratio exists The difference is very large; s5: performing weighted average operation; s6: outputting a measured value; the junction box is provided with a first thermocouple, a second thermocouple, a third thermocouple, a fourth thermocouple and a fifth thermocouple, and is positioned on the first thermocouple, the second thermocouple, the third thermocouple and the third thermocoupleAnd protective sleeves are installed on the outer sides of the four thermocouples and the fifth thermocouple, and installation flanges are installed on the outer sides of the protective sleeves. According to the invention, the distributed weighted average temperature sensor which is used as a one-point temperature detection point after weighted average effectively overcomes the influence of temperature fluctuation on control on the premise of relatively meeting the requirement of a non-quantitative biomass cracking state.)

1. A weighted average temperature measurement method based on a complex physicochemical treatment process is characterized in that: the method comprises the following steps:

s1: judging whether a thermocouple is disconnected;

s2: judging the change of the temperature point;

s3: will be provided withThe temperature points are ordered from high to low；

S4: judging whether a temperature point ratio existsThe difference is very large;

s5: performing weighted average operation;

s6: and outputting the measured value.

2. The method for measuring the weighted average temperature based on the complex physicochemical treatment process according to claim 1, wherein the method comprises the following steps: if no thermocouple is disconnected in the step S1, directly entering the step S2 to judge the change of the temperature point; if the thermocouple is disconnected, the sensor is determined to be faulty, the point measurement is ignored, and other weighted averages are performed.

3. The method for measuring the weighted average temperature based on the complex physicochemical treatment process according to claim 1, wherein the method comprises the following steps: if no temperature point changes too fast in said step S2, proceed directly to step S3The temperature points are ordered from high to low(ii) a If the temperature point changes too fast, the point with too fast temperature change is ignored, and the sorting is carried out after the temperature point is stabilized.

4. The method for measuring the weighted average temperature based on the complex physicochemical treatment process according to claim 1, wherein the method comprises the following steps: the temperature is detected at multiple points in the step S3Arranged from high to low according to measured values、、、、、(ii) a The temperature is randomly changed along with the influence of the materials in the reaction on the temperature measurement,andnot in a one-to-one correspondence, but by comparison with each other.

5. The method for measuring the weighted average temperature based on the complex physicochemical treatment process according to claim 1, wherein the method comprises the following steps: if there is no temperature point ratio in the step S4If the difference is large, the process directly proceeds to the weighted average operation in step S5; if there is a temperature point ratioIf the difference is large, the weight of the temperature point with large temperature difference is reduced and then the average operation is carried out.

6. A method for measuring the weighted average temperature based on complex physicochemical treatment processes according to claim 1 or 5, wherein: the criterion for the large temperature point change in step S4 is that the temperature point temperature change rate is 0.5 ℃/sec or more.

7. The sensor based on the weighted average temperature measurement method of the complex physicochemical treatment process as set forth in claim 1, wherein: including terminal box (8) and protective case (6), install first thermocouple (1), second thermocouple (2), third thermocouple (3), fourth thermocouple (4) and fifth thermocouple (5) on terminal box (8), protective case (6) are installed in the outside that terminal box (8) are located first thermocouple (1), second thermocouple (2), third thermocouple (3), fourth thermocouple (4) and fifth thermocouple (5), mounting flange (7) are installed in the outside of protective case (6).

8. The sensor based on the weighted average temperature measurement method of the complex physicochemical treatment process as recited in claim 7, wherein: an analog-digital converter, a low-power-consumption singlechip and digital-analog conversion output or data communication output are arranged in the junction box (8).

9. The sensor based on the weighted average temperature measurement method of the complex physicochemical treatment process as recited in claim 7, wherein: the protective sleeve (6) is a stainless steel protective sleeve.

Technical Field

The invention relates to the technical field of sensors, in particular to a weighted average temperature measuring method based on a complex physicochemical treatment process and a sensor.

Background

Complex physicochemical objects, such as non-quantitative biomass anaerobic cracking treatment, convert carbohydrates into resource hydrocarbons, wherein the treated objects can be liquid or solid, gas is generated after heating, all the processes are finished in a heated reaction kettle, and the objects need to creep or stir in order to improve the cracking speed. In the anaerobic cracking process of biomass, temperature is one of important parameters, and the temperature needs to be controlled and detected.

Gas, liquid and solid exist in the reaction kettle at the same time, cracked substances are thrown or adhered to the sensor and fall down from time to time by creeping or stirring, biomass cracking processes of different components are carried out in sequence, biomass cracking time of different volumes is short, and temperature difference exists, so that the traditional single-point sensor cannot reflect actual temperature, and the traditional single-point sensor has large fluctuation, and finally the temperature cannot be controlled.

Disclosure of Invention

The invention aims to provide a weighted average temperature measuring method and a sensor based on a complex physicochemical treatment process so as to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a weighted average temperature measurement method and sensor based on a complex physicochemical treatment process comprise the following steps:

s1: judging whether a thermocouple is disconnected;

s2: judging the change of the temperature point;

s3: will be provided withThe temperature points are ordered from high to low；

S4: judging whether a temperature point ratio existsThe difference is very large;

s5: performing weighted average operation;

s6: and outputting the measured value.

Preferably, if there is no open circuit in the step S1, the process directly proceeds to the step S2 to determine the change of the temperature point; if there is an open circuit, the sensor is deemed to be faulty, the point measurement is ignored, and the other weighted averages are taken.

Preferably, if no temperature point changes too fast in the step S2, the process directly proceeds to the step S3The temperature points are ordered from high to low(ii) a If the temperature point changes too fast, the point with too fast temperature change is ignored, and the sorting is carried out after the temperature point is stabilized.

Preferably, the temperature is detected at multiple points in step S3Arranged from high to low according to measured values、、、、、(ii) a The temperature is randomly changed along with the influence of the materials in the reaction on the temperature measurement,andnot in a one-to-one correspondence, but by comparison with each other.

Preferably, if there is no temperature point ratio in the step S4If the difference is large, the process directly proceeds to the weighted average operation in step S5; if there is a temperature point ratioIf the difference is large, the weight of the temperature point with large temperature difference is reduced and then the average operation is carried out.

Preferably, the criterion of the large temperature point change in step S4 is that the temperature point temperature change rate is 0.5 ℃/sec or more.

Preferably, the junction box comprises a junction box body and a protective sleeve, wherein a first thermocouple, a second thermocouple, a third thermocouple, a fourth thermocouple and a fifth thermocouple are mounted on the junction box body, the protective sleeve is mounted on the junction box body and located on the outer sides of the first thermocouple, the second thermocouple, the third thermocouple, the fourth thermocouple and the fifth thermocouple, and a mounting flange is mounted on the outer side of the protective sleeve.

Preferably, an analog-to-digital converter, a low-power-consumption single chip microcomputer and digital-to-analog conversion output or data communication output are arranged in the junction box.

Preferably, the protective sleeve is made of stainless steel.

Compared with the prior art, the invention has the beneficial effects that: a plurality of independent temperature measuring points (such as 5 but not limited to 5) are arranged in a single sensor, and the single sensor is used as a distributed weighted average temperature sensor of one temperature detecting point after weighted average, so that the influence of temperature fluctuation on control is effectively overcome on the premise that the non-quantitative biomass cracking state requirement is relatively met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of the structure of the sensor of the present invention.

Fig. 2 is a schematic block diagram of the sensor of the present invention.

FIG. 3 is a flow chart of the present invention.

In the figure: 1. a first thermocouple; 2. a second thermocouple; 3. a third thermocouple; 4. a fourth thermocouple; 5. a fifth thermocouple; 6. protecting the sleeve; 7. installing a flange; 8. a junction box.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1-3, in an embodiment of the present invention, a method and a sensor for measuring a weighted average temperature based on a complex physicochemical processing process include the following steps:

s1: judging whether a thermocouple is disconnected;

s2: judging the change of the temperature point;

s3: will be provided withThe temperature points are ordered from high to low；

S4: judging whether a temperature point ratio existsThe difference is very large;

s5: performing weighted average operation;

s6: and outputting the measured value.

Preferably, if there is no open circuit in the step S1, the process directly proceeds to the step S2 to determine the change of the temperature point; if there is an open circuit, the sensor is deemed to be faulty, the point measurement is ignored, and the other weighted averages are taken.

Preferably, if no temperature point changes too fast in the step S2, the process directly proceeds to the step S3The temperature points are ordered from high to low(ii) a If the temperature point changes too fast, the point with too fast temperature change is ignored, and the sorting is carried out after the temperature point is stabilized.

Preferably, the temperature is detected at multiple points in step S3Arranged from high to low according to measured values、、、、、(ii) a The temperature is randomly changed along with the influence of the materials in the reaction on the temperature measurement,andnot in a one-to-one correspondence, but by comparison with each other.

Preferably, if there is no temperature point ratio in the step S4If the difference is large, the process directly proceeds to the weighted average operation in step S5; if there is a temperature point ratioIf the difference is large, the weight of the temperature point with large temperature difference is reduced and then the average operation is carried out.

Preferably, the criterion of the large temperature point change in step S4 is that the temperature point temperature change rate is 0.5 ℃/sec or more.

First, we will measure the temperature at multiple pointsArranged from high to low according to measured values、、、、、. It is worth noting that the temperature is randomly changed according to the influence of the materials in the reaction on the temperature measurement, namelyAndnot in a one-to-one correspondence, but obtained by comparing:

further, we calculate the detected temperature of the sensor by the following formula:

a weighting coefficient B, C, D,N should be greater than 0 but less than 1, and B > C > DN, (for example, B =0.8, C =0.6, D = 0.4)Etc.). The weighting coefficients of the sensors with analog output (such as 4-20 mA output) need to be set in advance, and the weighting coefficients of the sensors with data communication can be adjusted by a controller (or an upper computer) according to needs.

In addition, we also add 3 judgments:

the 1 st judgment is that detection is madeOne or more of detecting temperature andwhen the temperature difference is large (such as 20 ℃), the weight of the detected temperature point is reduced by half, such asAndwhen the temperature is too low, the formula for detecting the temperature becomes:

namely, the weight of the temperature point with large disturbance is further reduced, and the purpose of reducing the detection temperature fluctuation is achieved. The temperature difference threshold of the analog output sensor (such as 4-20 mA output) needs to be set in advance, and the temperature difference threshold of the data communication sensor can be adjusted by a controller (or an upper computer) according to needs.

The 2 nd judgment is that detection is madeWhen the temperature change speed of one temperature point is too high (for example, exceeds 0.5 ℃/s), the weighted average operation is suspended, and after the temperature change speed is normal (for example, is small)At 0.5 ℃/sec), and a weighted average is included. The threshold value of the change speed of the sensor with analog output (such as 4-20 mA output) needs to be set in advance, and the threshold value of the change speed of the sensor with data communication can be adjusted by a controller (or an upper computer) according to needs.

The 3 rd judgment is that in the multipoint temperature sensor, as long as one point generates thermocouple disconnection, the output of the sensor is maximum, so that the controller can judge the sensor fault. The sensor with digital communication output can ignore the temperature point (use one temperature point less) for continuous use, and simultaneously send sensor fault information to the controller.

Preferably, the thermocouple junction box comprises a junction box 8 and a protective sleeve 6, wherein the junction box 8 is provided with a first thermocouple 1, a second thermocouple 2, a third thermocouple 3, a fourth thermocouple 4 and a fifth thermocouple 5, the protective sleeve 6 is arranged on the junction box 8 and positioned on the outer sides of the first thermocouple 1, the second thermocouple 2, the third thermocouple 3, the fourth thermocouple 4 and the fifth thermocouple 5, and a mounting flange 7 is arranged on the outer side of the protective sleeve 6.

Preferably, an analog-to-digital converter, a low-power consumption single chip microcomputer and digital-to-analog conversion output or data communication output are arranged in the junction box 8.

Preferably, the protective sleeve 6 is made of stainless steel.

The working principle of the invention is as follows: judging whether a thermocouple is disconnected; judging whether the change of some temperature points is too fast; will be provided withThe temperature points are ordered from high to low(ii) a Judging whether a temperature point ratio existsThe difference is very large; performing weighted average operation; and outputting the measured value.

First, we will measure the temperature at multiple pointsArranged from high to low according to measured values、、、、、(ii) a It is worth noting that the temperature is randomly changed according to the influence of the materials in the reaction on the temperature measurement, namelyAndnot in a one-to-one correspondence, but obtained by comparing:

further, we calculate the detected temperature of the sensor by the following formula:

a weighting coefficient B, C, D,N should be greater than 0 but less than 1, and B > C > DN, (for example, B =0.8, C =0.6, D = 0.4)Etc.); weighting coefficients of the analog output sensors (such as 4-20 mA output) need to be set in advance, and the weighting coefficients of the data communication sensors can be adjusted by a controller (or an upper computer) according to needs;

in addition, we also add 3 judgments:

the 1 st judgment is that detection is madeOne or more of detecting temperature andwhen the temperature difference is large (such as 20 ℃), the weight of the detected temperature point is reduced by half, such asAndwhen the temperature is too low, the formula for detecting the temperature becomes:

namely, the weight of the temperature point with large disturbance is further reduced, so that the aim of reducing the fluctuation of the detection temperature is fulfilled; the temperature difference threshold of the analog output sensor (such as 4-20 mA output) needs to be set in advance, and the temperature difference threshold of the data communication sensor can be adjusted by a controller (or an upper computer) according to needs;

the 2 nd judgment is that detection is madeWhen the temperature change speed of one temperature point is too fast (for example, exceeds 0.5 ℃/s), suspending the weighted average operation, and after the temperature change speed is normal (for example, is less than 0.5 ℃/s), performing the weighted average operation; the threshold value of the change speed of the sensor with analog output (such as 4-20 mA output) needs to be set in advance, and the threshold value of the change speed of the sensor with data communication can be adjusted by a controller (or an upper computer) according to needs;

the 3 rd judgment is that in the multipoint temperature sensor, as long as one point thermocouple is disconnected, the output of the sensor is the maximum, so that the controller can judge the sensor fault; the sensor with digital communication output can ignore the temperature point (use one temperature point less) for continuous use, and simultaneously send sensor fault information to the controller.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.