Nanhua Research Institute hydrogen sulfide concentration online measuring instrument passed technical appraisal
Slewing Controller is a kind of Tower Crane slewing control device, combined speed and voltage regulation and eddy current speed controling. The slewing control block control the speed of eddy current torque motor, to make the tower crane slewing mechanism start, working and stop smoothly. This kind of Slewing Controller is used to regulate and control the speed of three-phase torque motor of AC 50Hz, voltage 380V.
HRCV slewing controller is a hoisting slewing controller developed by our company according to service condition of customer.
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î ‹î ‹ "Ultraviolet luminosity absorption H2S concentration online measuring instrument" solves the online measurement problem of hydrogen sulfide concentration in the acid gas of the furnace entering the Claus furnace in the Claus sulfur recovery unit. The meter is designed with a new pulse-powered circuit and a high-intensity UV source with an auxiliary cathode for a lifetime of more than three years. The high temperature measuring cell has been developed to avoid condensation of the sample gas. The single-cell, single-light path and no moving parts make the photometer simple in structure and reliable in operation. The three-year industrial test results of the online measuring instrument in Yangzi Petrochemical Aromatics Plant and olefins plant show that the analysis results are accurate, stable and easy to use, and can meet the requirements of on-line analysis of H2S concentration in production operations.
"UV-IS UV absorbance method for SO2 concentration online measuring instrument" has developed a high-intensity ultraviolet light source with a life span of up to two years. The instrument is controlled by electric heating program, with automatic balance, automatic zero return and fault diagnosis function, which realizes long-term stable operation. The instrument adopts single-cell and single-light path design, which has simple structure and convenient maintenance. Developed a three-stage dust sampling system suitable for coal-fired boiler installations with independent intellectual property rights, which solved the problem of dust and water removal in coal-fired boiler gas samples. The industrial test conducted by the measuring instrument in Yangzi Petrochemical Thermal Power Plant and Nanhua Power Plant shows that the analysis results are accurate, the operation is stable, and the use is convenient, which satisfies the requirements of on-line analysis of SO2 concentration in production operation.
The main technical feature as follows:
(1) This product combined the controller and thyristor module,the connection of the users is simple and easy.Prevent the damage of the controller and thyristor module caused by mis-wiring of the customer.
(2) Realize the best optimization of AC voltage control curve and DC voltage control curve.
(3) With the function of inching during operation, realize the accuracy.
(4) The electronic components adopt the imported industrial grade chip, on the control panel directly with power supply and direction indicator light.
(5) Adopt the coating treatment on the printed circuit board,enhance the dust prevention and anti-condensation capacity of the circuit board.