37results about How to "Convenient online control" patented technology

The invention discloses a polymerization process condition optimization method taking polyolefin microscopic quality as a target, belonging to the field of manufacture of chemical products. The polymerization process condition optimization method is characterized by building a process mathematic model based on reaction mechanism for an olefin polymerization process, and solving an optimal polymerization process condition which meets requirements on quality of specific products by taking average molecular weight or molecular weight distribution as an index of the microscopic quality of the polyolefin. The polymerization process condition optimization method can be used for calculating to obtain the optimal process operation condition under the condition with the given average molecular weight and molecular weight distribution of the polymers; the method can be applied to the design of structures of polymer products and can be used for shortening time for developing a novel type polymer, so that energy conservation and emission reduction are implemented; the economic benefit is increased; the polymerization process condition optimization method is simple and clear in principle and easy to understand and implement; the implementation of computer programming is facilitated; the on-line control of the quality of the polymer products is facilitated.

The invention discloses an industrial intelligent control system, which relates to the field of industrial automatic control technologies. The industrial intelligent control system comprises an industry network, an industrial server, a PLC main station, an I / O substation, a power distribution cabinet, a power distribution room industrial switch and an intelligent terminal, wherein the industrial server is connected with the industry network, the power distribution room industrial switch is connected with the industry network, the intelligent terminal is connected with the power distribution room industrial switch, the PLC main station is connected with the industry network, the I / O substation is connected with the PLC main station, and the power distribution cabinet is connected with the I / O substation. According to the industrial intelligent control system, the webmaster (gateway) intelligent control terminal is used for replacing the traditional field button control box to achieve functions such as seamless switching and system scram of a centralized (interlocking) control method and an on-site (unlocking) control method in a networking state and complete the control of equipment and integrated sharing informatization, and the disclosed novel mode enables the field personnel to control and master operation state of the equipment online more conveniently, rapidly and detailedly.

The invention discloses a superheated steam temperature rapid energy-saving predictive control method. The method obtains the controlled object predictive control model through the step test of the superheated steam temperature object. Control quantity sequence and superheated steam temperature measurement value sequence, the control system obtains the current desuperheating spray valve opening degree through simple calculation according to the new performance index proposed by this patent. This control method solves the problem of complex optimization problems in traditional limited predictive control, large amount of calculation, and lack of effective control parameters to adjust the system control performance. It can make the superheated steam temperature control stable and fast, and the process dynamic deviation is small. And there is no steady-state deviation. While ensuring the quality of control, the method can also reduce the amount of cooling spray water in the control process and improve the economical efficiency of unit operation.

A method of applying ultrasonic wave energy to accelerated sedimentation of suspended matter. The scheme is to direct the sounding surface of the ultrasonic electro-acoustic transducer to the water surface and fix it in a closed container forming a plate structure outside, and link several vibration plates with mechanical locks that are easy to disassemble in the sedimentation area. The electroacoustic transducers inside the vibrating plate are arranged in rows and columns, and the wiring is connected in parallel, so that the electroacoustic transducers arranged in different odd and even numbers can be used to control or reverse the sound of different or the same frequency according to the characteristics of suspended solids in the water. Ultrasound; in order to effectively absorb ultrasonic energy, the bottom layer of the sedimentation tank is made of asphalt mineral wool felt, followed by porous polyester foam, and the upper layer is made of polyester fiber. In order to reduce the interference of reflected waves, the bottom of the pool can be set as a reflecting slope. Make the vertical downward wave form a certain angle with the reflected wave to prevent the interference of the reflected wave.