The article introduces the important part of the two specifications AI table of Yudian in the operation of the equipment. Through the actual operation, it proves that the AI ​​secondary instrument of Yudian has precise control, high stability and high reliability, easy operation and easy maintenance. The advantage, the device has been running well since its commissioning in 2007, without any malfunction.
Author: Jang Dong-Min, Jiangsu Xinhai Petrochemical Co., Ltd.
Abstract: This paper takes Jiangsu Xinhai Petrochemical Co., Ltd. as an example to introduce the case of the successful application of two specifications of AI-708 series instruments in the petroleum product distillation analyzer. The article introduces two specifications of AI table in Yudian. The important part of the operation, through the actual operation, proves that Yudian's AI secondary instrument has the advantages of precise control, high stability and high reliability, simple operation and convenient maintenance. The equipment has been running well since its commissioning in 2007. Without any malfunction.
Keywords: petroleum product distillation analyzer, Yudian AI instrument
Application of YudianAI two specificationsinstrumenton the same device
Author: Zhang Dongmin jiangsu new stone co., LTD
Abstract:This paper, taking jiangsu new stone co., LTD as an example, introduces the yu dian two specifications of the AI ​​- 708 series instrument in petroleum product distillation apparatus on the successful application case, article introduces yu dian two specifications AI table served As the important link in the equipment operation, through the actual operation, the secondary instrument AI yu dian company has high control accuracy, high stability and reliability, the advantages of convenient operation and simple maintenance, the equipment has been running well since 7 years putting -in-service proactively, without any fault..
Key words: Petroleum product distillation apparatus, yu dian instrument AI
0 Preface
In today's intelligent environment, the safe operation of equipment is becoming more and more strict on the control system. However, how to choose a reliable and safe equipment becomes an important issue. If the wrong selection may affect production, it will directly cause economic losses, regardless of each line. The industry has high requirements for automation, especially in the important refining and chemical industry testing equipment. The requirements for laboratory data are very high. There should be no omissions or falsehoods. Otherwise, it will affect the company's reputation. The test data must be strictly selected to work with good equipment. The test data requires high precision for temperature control. The following two models of UAV AI are used to prove its function.
1 Petroleum product distillation analyzer design requirements
1.1 Main technical parameters Process principle: The petroleum product distillation analyzer here is the diesel distillation range, the sample is sent to the distillation tube, heated in the distillation furnace, and the temperature is controlled. When the temperature reaches a certain level, gas is generated and the temperature control is very strict. The gas is collected again, then it is filled in with a distillation bottle and rapidly cooled down. This will know the distillation range of diesel.
Steps:
1. Before use, all switches are off and the voltage adjustment knob is turned counterclockwise to the end. Connect the circulating water pipe of the refrigerator and the analyzer (the outlet pipe of the refrigerator is connected to the inlet pipe of the analyzer, and the water pipe of the refrigerator is connected to the outlet pipe of the analyzer).
2. Add water or absolute ethanol to the bath. The water level is 2-3 cm from the upper end of the bath. (The drain valve is in the opening of the right side plate)
3. Connect the instrument power supply to a socket with a capacity of 220V or more. Be sure to have a good grounding wire.
4. Turn on the heater switch, adjust the voltage adjustment knob clockwise, the electric furnace starts to warm up and the voltmeter pointer changes with the heater voltage.
5. Use of cold bath heating device:
Turn on the power switch, temperature control switch, set the temperature control table to the required test temperature, set the temperature, turn the measurement and setting switch of the temperature control meter to the setting, adjust the temperature setting knob, and display the value. It can be stopped when it is set. Then switch to the measurement position, the number displayed at this time is the actual temperature of the bath, after the bath temperature reaches the set point, it will automatically be in a constant temperature state. (If the high temperature test is done, close the stirring switch and then stir the device to ensure the bath temperature is uniform.) Then close the combined refrigerator power switch, the cold bath refrigeration switch, and keep the bath temperature at the temperature control through the action of the circulation device. point.
The instrument consists of a distillation electric furnace, a temperature control part, a glassware, a balance tank, a solenoid valve, an electric heater, etc.: Functional characteristics 1. The instrument is a double-tube working mode, and can be single-tube independent under the set low temperature conditions. Tests can also be tested simultaneously on two samples of the same specification or different specifications, greatly improving work efficiency. 2. Two sets of independent Yudian digital temperature controller, heater, refrigerator and electric agitator are used to form two constant temperature baths. The temperature of the two baths can be independently adjusted and controlled, and the temperature inside the bath is uniform, which fully meets the requirements of the test. 3, using a special heating furnace form to ensure the safety of the test; heating power is continuously adjustable to meet the test requirements.
Yudian AI instrument is mainly used to control the temperature of the front and rear tubes. Under certain conditions, the temperature control requirements are very strict and accurate to 0.2. Whether the temperature control directly affects the correctness of the measurement results, it can be seen that the Yudian AI instrument plays an important role in the equipment.
2, equipment configuration
2.1 Hardware configuration The petroleum product distillation analyzer mainly has two thermostats, the supporting power button, the electric furnace, the fan, the electric heater and the supporting equipment of the manufacturer. It mainly controls the whole control process through the Yudian AI instrument to realize automation. Control, accurate temperature and bring accurate data to the test.
Below I summarize the characteristics of Yudian AI-708 series electric furnace professional thermostat:
With 30+20-segment program control function, it can realize the rising and falling temperature control of any slope, and has programmable/operable commands such as jump (loop), operation, pause and stop, and allows the program to be modified at any time during the control operation of the program. The AI ​​artificial intelligence adjustment algorithm with curve fitting function can obtain smooth and smooth curve control effect; the event output function can be edited during program running, and the external device action can be controlled; the SV transmission output function can be used as the program generator. Use; with measured value start function, preparation function and five power outage / power on event processing mode selection.
Support various thermocouples, RTDs, linear voltage, current, resistance and radiation (infrared) thermometers, and have special input specifications for expansion input socket installation, and can customize the special input nonlinear correction table, which can be connected with Cu50 copper resistor. As the thermocouple cold junction compensation, 0.1 level (V8.0 version) measurement accuracy, temperature drift is less than 50PPm / °C.
High-precision measurement and control of temperature, pressure, flow, etc., to minimize energy waste, and provide a free warranty for up to ten years to maximize customer and social benefits. Modular output supports SSR voltage, linear current (voltage), relay contact switch, thyristor contactless switch, single-phase, three-phase thyristor zero-crossing trigger, single-phase thyristor phase shift trigger output, position ratio Output (direct drive valve motor forward/reverse), etc., control cycle 0.24~60 seconds; with standard PID, AI artificial intelligence adjustment APID or MPT and other adjustment methods, with self-tuning, self-learning function, no overshoot and no The excellent control characteristics of the undershoot can also be controlled by the ON-OFF function. The dual independent parameter PID can support the heating/cooling dual output function. Advanced AIBUS communication protocol: Support RS485 or RS232C communication interface, with fast communication technology, it is convenient to set up large and medium-sized computer control systems of thousands of points or connect AI series real color human-machine interface touch screen/separate paperless recorder. Supports multiple alarm functions such as upper limit, lower limit, upper limit of deviation and lower limit of deviation, and can freely define 4 alarm output ports to support multiple alarm signals to be output from the same position. It has the functions of power-on exemption alarm and other functions to avoid power-on alarm malfunction. The measured value (PV) or setpoint (SV) can be converted to a standard current signal output, providing 14-bit high resolution, 0.2-level output accuracy, and current output better than 100ppm/°C temperature drift. You can define the permissions for parameter viewing and modification, and allow users to customize passwords and tailor the instruments that best suit their operating habits. Available panel sizes: A, A2, B, C, C3, E, E2, E5, F, D.
3 Conclusions and on-site application pictures This article is dedicated to those who are looking for thermostats. I can use a variety of case studies to verify that AI's AI instruments are really well used in practice. Look at my equipment and see Looking at the AI ​​meter, it is easy to see that we have been using Yudian's products.
Through the above brief description and the following picture demonstration, Yudian AI secondary instrument has been well applied in our company and has been recognized by many leaders. I simply started with two important devices using AI instruments. There are many cases in which electric equipment is used in our factory. I just give a special example for everyone to exchange and learn. In fact, the temperature control of the equipment in the factory is very strict. The Yu AI table responds quickly and sensitively, with high precision and control output. accurate. This is proven in the equipment we use, and the failure rate is low. This shows that Yudian AI secondary instrument temperature controller is a good product we can trust.
The use of Yudian AI high-performance temperature controller is not only environmentally friendly, but also energy-saving. For high-power box-type resistance furnaces, the control effect has a direct impact on the service life of the heating elements in the furnace. The AI ​​series instruments not only have low failure rate. The use of Yudian AI meter for one year's power saving is also a considerable expense. For example, when a customer's equipment heating product is in the range of 200 °C ~ 220 °C, it can basically work normally, and the low-precision meter temperature is set to 210. °C, the drift is ±10 °C, although it can barely meet the production requirements, but because of the high temperature setting value, it consumes energy in vain, and the U-power high-performance instrument can stabilize the temperature range at 201 °C drift ±1 °C, thus making The average heating temperature is reduced from 210 ° C to 201 ° C, which can save 6 to 10% of electrical energy in this example. I believe that helping customers reduce costs and produce high-quality products is the direction that Yudian has been working hard.
Photographs of two specifications of Yudian on the same device:
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references
[1] AI series artificial intelligence regulator user manual V7.0. Xiamen Yudian Automation Technology Co., Ltd. version 1994-2014
[2] Hao Biao. Operating rules for petroleum product distillation analyzer. Xi'an Lianxing Instrument Co., Ltd.
Personal Information: Zhang Dongmin (1985-), male, graduated from China University of Petroleum (East China), major in chemical engineering and technology, senior technician (national first-level title), published in the Automation Expo, [email protected] magazine He has written many papers and won the third prize of SCADA essay, China Petroleum and Chemical Engineering Research Association and China Instrument and Meter Association. He is currently the engineer of Jiangsu Xinhai Petrochemical Instrument Repair Workshop, engaged in instrument maintenance and repair, DCS, PLC design programming and project construction.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
Author: Jang Dong-Min, Jiangsu Xinhai Petrochemical Co., Ltd.
Abstract: This paper takes Jiangsu Xinhai Petrochemical Co., Ltd. as an example to introduce the case of the successful application of two specifications of AI-708 series instruments in the petroleum product distillation analyzer. The article introduces two specifications of AI table in Yudian. The important part of the operation, through the actual operation, proves that Yudian's AI secondary instrument has the advantages of precise control, high stability and high reliability, simple operation and convenient maintenance. The equipment has been running well since its commissioning in 2007. Without any malfunction.
Keywords: petroleum product distillation analyzer, Yudian AI instrument
Application of YudianAI two specificationsinstrumenton the same device
Author: Zhang Dongmin jiangsu new stone co., LTD
Abstract:This paper, taking jiangsu new stone co., LTD as an example, introduces the yu dian two specifications of the AI ​​- 708 series instrument in petroleum product distillation apparatus on the successful application case, article introduces yu dian two specifications AI table served As the important link in the equipment operation, through the actual operation, the secondary instrument AI yu dian company has high control accuracy, high stability and reliability, the advantages of convenient operation and simple maintenance, the equipment has been running well since 7 years putting -in-service proactively, without any fault..
Key words: Petroleum product distillation apparatus, yu dian instrument AI
0 Preface
In today's intelligent environment, the safe operation of equipment is becoming more and more strict on the control system. However, how to choose a reliable and safe equipment becomes an important issue. If the wrong selection may affect production, it will directly cause economic losses, regardless of each line. The industry has high requirements for automation, especially in the important refining and chemical industry testing equipment. The requirements for laboratory data are very high. There should be no omissions or falsehoods. Otherwise, it will affect the company's reputation. The test data must be strictly selected to work with good equipment. The test data requires high precision for temperature control. The following two models of UAV AI are used to prove its function.
1 Petroleum product distillation analyzer design requirements
1.1 Main technical parameters Process principle: The petroleum product distillation analyzer here is the diesel distillation range, the sample is sent to the distillation tube, heated in the distillation furnace, and the temperature is controlled. When the temperature reaches a certain level, gas is generated and the temperature control is very strict. The gas is collected again, then it is filled in with a distillation bottle and rapidly cooled down. This will know the distillation range of diesel.
Steps:
1. Before use, all switches are off and the voltage adjustment knob is turned counterclockwise to the end. Connect the circulating water pipe of the refrigerator and the analyzer (the outlet pipe of the refrigerator is connected to the inlet pipe of the analyzer, and the water pipe of the refrigerator is connected to the outlet pipe of the analyzer).
2. Add water or absolute ethanol to the bath. The water level is 2-3 cm from the upper end of the bath. (The drain valve is in the opening of the right side plate)
3. Connect the instrument power supply to a socket with a capacity of 220V or more. Be sure to have a good grounding wire.
4. Turn on the heater switch, adjust the voltage adjustment knob clockwise, the electric furnace starts to warm up and the voltmeter pointer changes with the heater voltage.
5. Use of cold bath heating device:
Turn on the power switch, temperature control switch, set the temperature control table to the required test temperature, set the temperature, turn the measurement and setting switch of the temperature control meter to the setting, adjust the temperature setting knob, and display the value. It can be stopped when it is set. Then switch to the measurement position, the number displayed at this time is the actual temperature of the bath, after the bath temperature reaches the set point, it will automatically be in a constant temperature state. (If the high temperature test is done, close the stirring switch and then stir the device to ensure the bath temperature is uniform.) Then close the combined refrigerator power switch, the cold bath refrigeration switch, and keep the bath temperature at the temperature control through the action of the circulation device. point.
The instrument consists of a distillation electric furnace, a temperature control part, a glassware, a balance tank, a solenoid valve, an electric heater, etc.: Functional characteristics 1. The instrument is a double-tube working mode, and can be single-tube independent under the set low temperature conditions. Tests can also be tested simultaneously on two samples of the same specification or different specifications, greatly improving work efficiency. 2. Two sets of independent Yudian digital temperature controller, heater, refrigerator and electric agitator are used to form two constant temperature baths. The temperature of the two baths can be independently adjusted and controlled, and the temperature inside the bath is uniform, which fully meets the requirements of the test. 3, using a special heating furnace form to ensure the safety of the test; heating power is continuously adjustable to meet the test requirements.
Yudian AI instrument is mainly used to control the temperature of the front and rear tubes. Under certain conditions, the temperature control requirements are very strict and accurate to 0.2. Whether the temperature control directly affects the correctness of the measurement results, it can be seen that the Yudian AI instrument plays an important role in the equipment.
2, equipment configuration
2.1 Hardware configuration The petroleum product distillation analyzer mainly has two thermostats, the supporting power button, the electric furnace, the fan, the electric heater and the supporting equipment of the manufacturer. It mainly controls the whole control process through the Yudian AI instrument to realize automation. Control, accurate temperature and bring accurate data to the test.
Below I summarize the characteristics of Yudian AI-708 series electric furnace professional thermostat:
With 30+20-segment program control function, it can realize the rising and falling temperature control of any slope, and has programmable/operable commands such as jump (loop), operation, pause and stop, and allows the program to be modified at any time during the control operation of the program. The AI ​​artificial intelligence adjustment algorithm with curve fitting function can obtain smooth and smooth curve control effect; the event output function can be edited during program running, and the external device action can be controlled; the SV transmission output function can be used as the program generator. Use; with measured value start function, preparation function and five power outage / power on event processing mode selection.
Support various thermocouples, RTDs, linear voltage, current, resistance and radiation (infrared) thermometers, and have special input specifications for expansion input socket installation, and can customize the special input nonlinear correction table, which can be connected with Cu50 copper resistor. As the thermocouple cold junction compensation, 0.1 level (V8.0 version) measurement accuracy, temperature drift is less than 50PPm / °C.
High-precision measurement and control of temperature, pressure, flow, etc., to minimize energy waste, and provide a free warranty for up to ten years to maximize customer and social benefits. Modular output supports SSR voltage, linear current (voltage), relay contact switch, thyristor contactless switch, single-phase, three-phase thyristor zero-crossing trigger, single-phase thyristor phase shift trigger output, position ratio Output (direct drive valve motor forward/reverse), etc., control cycle 0.24~60 seconds; with standard PID, AI artificial intelligence adjustment APID or MPT and other adjustment methods, with self-tuning, self-learning function, no overshoot and no The excellent control characteristics of the undershoot can also be controlled by the ON-OFF function. The dual independent parameter PID can support the heating/cooling dual output function. Advanced AIBUS communication protocol: Support RS485 or RS232C communication interface, with fast communication technology, it is convenient to set up large and medium-sized computer control systems of thousands of points or connect AI series real color human-machine interface touch screen/separate paperless recorder. Supports multiple alarm functions such as upper limit, lower limit, upper limit of deviation and lower limit of deviation, and can freely define 4 alarm output ports to support multiple alarm signals to be output from the same position. It has the functions of power-on exemption alarm and other functions to avoid power-on alarm malfunction. The measured value (PV) or setpoint (SV) can be converted to a standard current signal output, providing 14-bit high resolution, 0.2-level output accuracy, and current output better than 100ppm/°C temperature drift. You can define the permissions for parameter viewing and modification, and allow users to customize passwords and tailor the instruments that best suit their operating habits. Available panel sizes: A, A2, B, C, C3, E, E2, E5, F, D.
3 Conclusions and on-site application pictures This article is dedicated to those who are looking for thermostats. I can use a variety of case studies to verify that AI's AI instruments are really well used in practice. Look at my equipment and see Looking at the AI ​​meter, it is easy to see that we have been using Yudian's products.
Through the above brief description and the following picture demonstration, Yudian AI secondary instrument has been well applied in our company and has been recognized by many leaders. I simply started with two important devices using AI instruments. There are many cases in which electric equipment is used in our factory. I just give a special example for everyone to exchange and learn. In fact, the temperature control of the equipment in the factory is very strict. The Yu AI table responds quickly and sensitively, with high precision and control output. accurate. This is proven in the equipment we use, and the failure rate is low. This shows that Yudian AI secondary instrument temperature controller is a good product we can trust.
The use of Yudian AI high-performance temperature controller is not only environmentally friendly, but also energy-saving. For high-power box-type resistance furnaces, the control effect has a direct impact on the service life of the heating elements in the furnace. The AI ​​series instruments not only have low failure rate. The use of Yudian AI meter for one year's power saving is also a considerable expense. For example, when a customer's equipment heating product is in the range of 200 °C ~ 220 °C, it can basically work normally, and the low-precision meter temperature is set to 210. °C, the drift is ±10 °C, although it can barely meet the production requirements, but because of the high temperature setting value, it consumes energy in vain, and the U-power high-performance instrument can stabilize the temperature range at 201 °C drift ±1 °C, thus making The average heating temperature is reduced from 210 ° C to 201 ° C, which can save 6 to 10% of electrical energy in this example. I believe that helping customers reduce costs and produce high-quality products is the direction that Yudian has been working hard.
Photographs of two specifications of Yudian on the same device:
references
[1] AI series artificial intelligence regulator user manual V7.0. Xiamen Yudian Automation Technology Co., Ltd. version 1994-2014
[2] Hao Biao. Operating rules for petroleum product distillation analyzer. Xi'an Lianxing Instrument Co., Ltd.
Personal Information: Zhang Dongmin (1985-), male, graduated from China University of Petroleum (East China), major in chemical engineering and technology, senior technician (national first-level title), published in the Automation Expo, [email protected] magazine He has written many papers and won the third prize of SCADA essay, China Petroleum and Chemical Engineering Research Association and China Instrument and Meter Association. He is currently the engineer of Jiangsu Xinhai Petrochemical Instrument Repair Workshop, engaged in instrument maintenance and repair, DCS, PLC design programming and project construction.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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