CN-116136508-B - Insulation layer soaking monitoring method and monitoring device

CN116136508BCN 116136508 BCN116136508 BCN 116136508BCN-116136508-B

Abstract

The invention belongs to the technical field of monitoring of heat preservation layers, and particularly relates to a heat preservation layer soaking monitoring device and a monitoring method, wherein the heat preservation layer soaking monitoring device comprises the following steps that an upper computer sends a working instruction to a singlechip; the single chip microcomputer receives a working instruction sent by the upper computer and sends working signals to the signal generation module and the control module, the signal generation module applies the working signals to the control module executing mechanism, the control module amplifies power of the signals sent by the single chip microcomputer and drives the control module executing mechanism, and the control module executing mechanism receives the working signals from the signal generation module and the control module and applies potential difference excitation signals to the conductivity monitoring electrode. According to the invention, the conductivity of the insulating layer is monitored in real time by arranging the monitoring module and the insulating layer conductivity monitoring electrode, and the feedback insulating layer conductivity value is judged by arranging the control module executing mechanism, so that potential difference excitation signals are applied, whether the insulating layer is immersed or not is continuously monitored, and the judging accuracy is improved.

Inventors

WANG WEIJIE
GUAN ZICHAO
HAN JICHENG
DI ZHIGANG
SHANG YUEZAI
ZHU WENSHENG
MIAO LEI
LIU BO
ZHU GUOLI
XIA YUAN

Assignees

中海油常州涂料化工研究院有限公司
中海油能源发展股份有限公司
中海油常州环保涂料有限公司

Dates

Publication Date: 20260512
Application Date: 20211118

Claims (9)

1. The method for monitoring the immersion of the heat preservation layer is characterized by comprising the following steps of: S1, an upper computer sends out a working instruction to a singlechip; s2, the singlechip receives a working instruction sent by the upper computer and sends working signals to the signal generation module and the control module; S3, the signal generating module applies a working signal to the control module executing mechanism, and the control module amplifies the power of the signal sent by the singlechip and drives the control module executing mechanism; S4, the control module executing mechanism receives working signals from the signal generating module and the control module and applies potential difference excitation signals to the conductivity monitoring electrode; S5, the monitoring module detects a response current signal and feeds back the response current signal to the control module executing mechanism, and the control module executing mechanism judges the response current signal and works according to a judging result, wherein the control module executing mechanism acquires the response current signal; S6, the A/D conversion module acquires an analog signal in the monitoring module and converts the analog signal into a digital signal; s7, the singlechip collects digital signals and uploads the digital signals to the upper computer; s8, the upper computer processes the acquired digital signals.
2. The method for monitoring the flooding of the heat preservation layer according to claim 1, wherein the potential difference excitation signal in the step S4 is 5-15mV.
3. The method for monitoring the immersion of the heat preservation layer according to claim 1, wherein the step of processing the collected digital signals by the upper computer in S8 comprises the steps of: measuring and calculating the resistance of the electrolytic cell through the measured current value and the voltage value; calculating the resistance of the heat preservation layer through the resistance at the two ends of the electrolytic cell; And calculating the conductivity of the insulating layer through the resistance of the insulating layer.
4. The insulation layer soaking monitoring device is characterized by comprising an upper computer, a singlechip, a signal generation module, a control module executing mechanism, a conductivity monitoring electrode, a monitoring module and an A/D conversion module.
5. The insulation water immersion monitoring apparatus according to claim 4, wherein the conductivity monitoring electrode comprises an encapsulation resin, a sheet electrode provided on the encapsulation resin, and a jig for connecting the encapsulation resin.
6. The insulation submergence monitoring device of claim 4 wherein the monitor module output is connected to the input of the a/D conversion module.
7. The insulation layer flooding monitoring device according to claim 4 is characterized in that the input end of the single-chip microcomputer is connected with the control module, the upper computer and the A/D conversion module, and the output end of the single-chip microcomputer is connected with the signal generation module and the control module.
8. The insulation layer flooding monitoring device according to claim 4, wherein the input end of the control module actuating mechanism is connected with the signal generating module and the control module, and the output end of the control module actuating mechanism is connected with the monitoring module.
9. The insulation water immersion monitoring device according to claim 4, wherein an output end of the monitoring module is connected with the a/D conversion module.

Description

Insulation layer soaking monitoring method and monitoring device Technical Field The invention belongs to the technical field of insulation monitoring, and particularly relates to an insulation soaking monitoring device and an insulation soaking monitoring method. Background The external corrosion condition of the device of the current China petrochemical enterprises is serious, particularly the corrosion under the heat preservation layer is serious, equipment and facilities can be possibly caused to malfunction, the device is stopped in an unscheduled mode, dangerous harmful substances are possibly leaked, huge economic loss is caused, and serious and even personal casualties can be possibly caused. In the working process of the heat preservation layer, the conductivity of the heat preservation layer can be dynamically changed along with the changes of the running state, the environment and the working condition of equipment and facilities. When the conductivity of the insulating layer is low, the deviation caused by the current and the resistance of the electrolyte brings great error to the corrosion electrochemical monitoring result under the insulating layer. The existing heat preservation soaking monitoring methods include a drying and bearing method for collecting heat preservation material samples, a distributed optical fiber technology based on Joule-Thomson effect and an infrared thermal imaging monitoring technology, but cannot effectively compensate monitoring results of heat preservation conductivity. Disclosure of Invention The invention aims to solve the technical problem of providing a device and a method for monitoring the immersion of an insulating layer. The technical scheme adopted by the invention for solving the technical problems is that a real-time insulation layer soaking and conductivity monitoring method is provided, and the method comprises the following steps: S1, an upper computer sends out a working instruction to a singlechip; s2, the singlechip receives a working instruction sent by the upper computer and sends working signals to the signal generation module and the control module; S3, the signal generating module applies a working signal to the control module executing mechanism, and the control module amplifies the power of the signal sent by the singlechip and drives the control module executing mechanism; S4, the control module executing mechanism receives working signals from the signal generating module and the control module and applies potential difference excitation signals to the conductivity monitoring electrode; s5, the monitoring module detects a response current signal and feeds back the response current signal to the control module executing mechanism, and the control module executing mechanism judges the response current signal and works according to a judging result, wherein the control module executing mechanism acquires the response current signal; S6, the A/D conversion module acquires an analog signal in the monitoring module and converts the analog signal into a digital signal; s7, the singlechip collects digital signals and uploads the digital signals to the upper computer; s8, the upper computer processes the acquired digital signals. Further, the potential difference excitation signal described in S4 is 5-15mV. Further, the processing of the collected digital signal by the upper computer in S8 includes: measuring and calculating the resistance of the electrolytic cell through the measured current value and the voltage value; calculating the resistance of the heat preservation layer through the resistance at the two ends of the electrolytic cell; And calculating the conductivity of the insulating layer through the resistance of the insulating layer. Further, the insulating layer soaking monitoring device comprises an upper computer, a singlechip, a signal generation module, a control module executing mechanism, a conductivity monitoring electrode, a monitoring module and an A/D conversion module. Further, the conductivity monitoring electrode includes an encapsulation resin, a sheet electrode provided on the encapsulation resin, and a jig connecting the encapsulation resin. Further, the output end of the monitoring module is connected with the input end of the A/D conversion module. Furthermore, the input end of the singlechip is connected with the control module, the upper computer and the A/D conversion module, and the output end of the singlechip is connected with the signal generation module and the control module. Further, the input end of the control module executing mechanism is connected with the signal generating module and the control module, and the output end of the control module executing mechanism is connected with the monitoring module. Further, the output end of the monitoring module is connected with the A/D conversion module. The invention has the beneficial effects that the electric conductivity of the insulating layer is monitored