Online temperature real-time monitoring device for vinyl chloride conversion

Abstract

The utility model relates to the technical field of temperature monitoring, in particular to an on-line temperature real-time monitoring device for vinyl chloride conversion, which comprises a controller, a monitoring module, a conversion module, a collecting and processing module and a network transmission module. The monitoring module is electrically connected with the conversion module, the conversion module is electrically connected with the collection processing module, and the collection processing module is electrically connected with the controller through the network transmission module; wherein the monitoring module is provided with a temperature sensor, and the temperature sensor is arranged in a reaction tube of the converter. The device can accurately measure the temperature, accurately monitor the temperature change of the catalyst in the adsorption reaction process, timely discover abnormal conditions and take corresponding measures, ensure the normal operation of the catalyst, prolong the service life of the catalyst, reduce the working intensity of operators, reduce operation errors, and improve the working efficiency. The device has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature monitoring, and is an online temperature real-time monitoring device for vinyl chloride conversion. Background Art

[0002] In the chlor-alkali chemical production process, the vinyl chloride converter plays an important role as a module in the calcium carbide method polyvinyl chloride reaction process. The temperature of the converter directly affects the conversion efficiency, so it is particularly important to control the converter temperature.

[0003] If the catalyst temperature is too high during the conversion and adsorption process, it may cause the catalyst particles to shatter, thereby reducing the catalyst's service life. Excessive temperature can also cause the converter to react too quickly, potentially causing the converter to explode, posing a significant risk to production safety.

[0004] However, the reliability requirements for the multi-point temperature control of the converter in production are extremely high. On-site operators need to frequently visit the site every shift to check and adjust the inlet water temperature regulating valve and the raw gas inlet valve. These operations require frequent repetitive operations, which places high workload on operators and makes them prone to work errors. Summary of the Invention

[0005] The utility model provides an online temperature real-time monitoring device for vinyl chloride conversion, which overcomes the shortcomings of the above-mentioned prior art and can effectively solve the problems of high reliability requirements for multi-point temperature control of the converter in production, the need for on-site operators to frequently repeat operations, high work intensity and easy mistakes.

[0006] The technical solution of the utility model is achieved through the following measures: an online temperature real-time monitoring device for vinyl chloride conversion, comprising a controller, a monitoring module, a conversion module, a collection and processing module and a network transmission module; the monitoring module is electrically connected to the conversion module, the conversion module is electrically connected to the collection and processing module, and the collection and processing module is electrically connected to the controller through the network transmission module; wherein the monitoring module is provided with a temperature sensor, and the temperature sensor is provided in the reaction tube of the converter.

[0007] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0008] A temperature compensation component may also be provided, and the temperature compensation component is electrically connected to the monitoring module.

[0009] A data analysis module may also be included, and the data analysis module is electrically connected to the controller.

[0010] It may also include an alarm prompt module, which is electrically connected to the controller.

[0011] The alarm prompt module may be provided with an audible alarm and / or a luminous alarm.

[0012] It may also include a terminal device, which is electrically or wirelessly connected to the controller.

[0013] The terminal device may be at least one of a mobile phone, a tablet, a host computer or a DCS monitoring computer.

[0014] This utility model enables precise temperature measurement and accurately monitors catalyst temperature changes during the adsorption reaction. It is designed to monitor the internal temperature of the converter in real time, enabling timely detection of abnormalities and the implementation of appropriate measures to ensure proper operation and extend the lifespan of the catalyst. Real-time temperature monitoring reduces operator workload and operational errors. The utility model has a reasonable and compact structure and is easy to use. It monitors the converter temperature in real time and is safe, labor-saving, simple, and highly efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attachment Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Attachment Figure 2 This is a schematic diagram of on-site connection of an embodiment of the present utility model.

[0017] The codes in the attached figure are: 1 for temperature sensor, 2 for converter, 3 for data acquisition box, 4 for network communication data acquisition cabinet, 5 for optical fiber, 6 for DCS cabinet room, 7 for DCS cabinet, 8 for microcomputer monitoring operation room, and 9 for DCS monitoring computer. DETAILED DESCRIPTION

[0018] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0019] The present invention will be further described below in conjunction with the embodiments:

[0020] Example 1: As shown in the attached Figure 1 、 2As shown, the online real-time temperature monitoring device for vinyl chloride conversion includes a controller, a monitoring module, a conversion module, a collection and processing module, and a network transmission module. The monitoring module is electrically connected to the conversion module, which is in turn electrically connected to the collection and processing module, which is then electrically connected to the controller via the network transmission module. The monitoring module is equipped with a temperature sensor, which is located within the reaction tube of the converter. The temperature sensor can be a thermocouple. Specifically, the present invention uses a thermocouple inserted within the converter's reaction tube to accurately measure temperature and monitor the catalyst's temperature during the adsorption reaction. By accurately monitoring temperature changes within the converter, the monitoring module can promptly detect abnormalities and take appropriate measures to ensure proper operation and extend the catalyst's service life. The conversion module uses compensation wires to convert the temperature signal transmitted by the thermocouple into a millivolt signal and transmit it to the collection and processing module. In this invention, based on the principle of proximity grouping, all 1,152 temperature points of 96 converters are connected to the collection and processing module. The collection and processing module is responsible for collecting, processing, and storing all temperature data. The network transmission module realizes data transmission and communication through optical fiber, network cable and photoelectric conversion, ensuring the connection and information exchange between the monitoring module and the collection and processing module.

[0021] In this embodiment, a temperature compensation component is also provided. The temperature compensation component is arranged in the on-site explosion-proof cabinet and is electrically connected to the monitoring module. The temperature compensation component can reduce the actual temperature compensation error of the measurement site environment and achieve more accurate temperature measurement.

[0022] This utility model uses redundant networks to collect and transmit data, ensuring real-time data availability. Dynamic adjustments can be made by increasing or decreasing the number of cards based on field temperature. In this embodiment, 18 sets of equipment are equipped with only one CPU and one set of core data switches. Data network monitoring and redundant, non-disruptive switching can also be configured as needed.

[0023] This utility model enables precise temperature measurement and accurately monitors catalyst temperature changes during the adsorption reaction. It is designed to monitor the internal temperature of the converter in real time, enabling timely detection of abnormalities and the implementation of appropriate measures to ensure proper operation and extend the lifespan of the catalyst. Real-time temperature monitoring reduces operator workload and operational errors. The utility model has a reasonable and compact structure and is easy to use. It monitors the converter temperature in real time and is safe, labor-saving, simple, and highly efficient.

[0024] Example 2: As shown in the attached Figure 1 、 2As shown, the online temperature real-time monitoring device for vinyl chloride conversion also includes a data analysis module, which is electrically connected to the controller and is used to analyze data to help operators perform real-time monitoring and decision-making.

[0025] In this embodiment, an alarm prompt module is also included. The alarm prompt module is electrically connected to the controller and is used to provide timely alarms and prompts when the temperature is abnormal so that the operator can take measures. Preferably, the alarm prompt module can be provided with an audible alarm and / or a luminous alarm, so that the operator can quickly respond and take measures when the temperature abnormality occurs.

[0026] Example 3: As shown in the attached Figure 1 、 2 As shown, the online real-time temperature monitoring device for vinyl chloride conversion also includes a terminal device, which is electrically or wirelessly connected to the controller. The terminal device can be at least one of a mobile phone, tablet, host computer, or DCS monitoring computer, allowing off-site technicians and management to remotely monitor temperature changes within each converter in real time. The host computer can also provide functions for determining converter service life, providing prompts, and providing alarms, facilitating production management.

[0027] As attached Figure 2 As shown, in this embodiment, DCS is preferably used as the controller. Specifically, multiple temperature sensors 1 are set in the converter 2 for collecting temperature. The signals of the temperature sensors 1 are fed into the data acquisition box 3. Multiple data acquisition boxes 3 are connected and converged to the network communication data acquisition cabinet 4. Then, they are connected to the DCS cabinet 7 installed in the DCS cabinet room 6 via an optical fiber 5. The DCS cabinet 7 is also electrically connected to the DCS monitoring computer 9 installed in the microcomputer monitoring operation room 8 for centralized temperature control. Among them, the DCS cabinet 7 is mainly used for receiving conversion data, field temperature data processing, and compensation temperature conversion and display. The DCS monitoring computer 9 is mainly used for temperature display, alarm prompts, operating time alarm prompts, and data acquisition network operation status monitoring.

[0028] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

Claims

1. An online temperature real-time monitoring device for vinyl chloride conversion, characterized in that It includes a controller, a monitoring module, a conversion module, a collection and processing module and a network transmission module; the monitoring module is electrically connected to the conversion module, the conversion module is electrically connected to the collection and processing module, and the collection and processing module is electrically connected to the controller through the network transmission module; wherein, the monitoring module is provided with a temperature sensor, and the temperature sensor is arranged in the reaction tube of the converter; it is also provided with a temperature compensation component, and the temperature compensation component is electrically connected to the monitoring module; it also includes a data analysis module, and the data analysis module is electrically connected to the controller; it also includes an alarm prompt module, and the alarm prompt module is electrically connected to the controller.

2. The online temperature real-time monitoring device for vinyl chloride conversion according to claim 1, characterized in that The alarm prompt module is provided with a sound alarm and / or a light alarm.

3. The online temperature real-time monitoring device for vinyl chloride conversion according to claim 1 or 2, characterized in that It also includes a terminal device, which is electrically or wirelessly connected to the controller.

4. The online temperature real-time monitoring device for vinyl chloride conversion according to claim 3, characterized in that The terminal device is at least one of a mobile phone, a tablet, a host computer or a DCS monitoring computer.

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