Ultraviolet fluorescence on-line total sulfur analysis control system and method
A control system and fluorescence technology, applied in the field of analytical instruments, can solve the problems of not being able to monitor the desulfurization effect in time, and the total sulfur content of raw materials and intermediate products in time, and achieve the effects of saving manpower, avoiding waste, and accurate test results
Active Publication Date: 2016-06-08
北京润道油液监测技术有限公司
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[0002] Ultraviolet fluorescence method for total sulfur analysis is currently the most widely used method for total sulfur analysis of petroleum products (gas hydrocarbons such as natural gas, light oil products, etc.), and is the referee standard for the detection of total sulfur content in fuel oil in my country. It has no other methods. Compared advantages: wide measurement range, high sensitivity, fast analysis speed, no need for any reagents, etc., but at present, there is no ultraviolet fluorescence online total sulfur analyzer in China, and there is no online ultraviolet fluorescence total sulfur analysis method that can analyze in time, and cannot be monitored in time The total sulfur content of raw materials and intermediate products in the production process, especially in the desulfurization production process, cannot monitor the desulfurization effect in time, so the development and manufacture of ultraviolet fluorescence online total sulfur analyzer is of great significance
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[0053] Below in conjunction with accompanying drawing and embodiment, the present invention will be further described:
[0054] like figure 1 As shown, an ultraviolet fluorescence online total sulfur analysis control system includes a controller 13, a sample carrier gas flow controller 12, a gasification carrier gas flow controller 11, a first cracked oxygen flow controller 10, and a second cracked oxygen flow rate Controller 9, the first 5 / 2-way valve 8, the second 5 / 2-way valve 7, the flow path selection valve 6, the six-way sampling solenoid valve 5, the preamplifier 4, the photomultiplier tube 3, the data acquisition card 1 and the first temperature sensor 2; the controller 13 is connected to the board computer 14 through the data acquisition card 1;
[0055] The controller 13 is bidirectional with the sample carrier gas flow controller 12, the vaporization carrier gas flow controller 11, the first cracking oxygen flow controller 10, and the second cracking oxygen flow co...
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The invention discloses an ultraviolet fluorescence on-line total sulfur analysis control system and method. A six-way sample introduction electromagnetic valve and a quantifying tube are adopted for sampling, the sampling period is controlled, and sampling and sample introducing are automatically completed; by the adoption of a split structure, inflammable, combustion-supporting and corrosive gas is prevented from entering an electronic part; a positive-voltage anti-explosion system is adopted for avoiding that an instrument explodes in a dangerous environment when used. A detection result is more accurate and can be transmitted to a production control system in time, the production process is monitored and controlled in time, the qualified rate of a petrochemical product is increased greatly, raw material and catalyst waste is avoided, and a lot of labor is saved.
Description
technical field [0001] The invention belongs to the field of analytical instruments, in particular to an ultraviolet fluorescence online total sulfur analysis control system and method. Background technique [0002] Ultraviolet fluorescence method for total sulfur analysis is currently the most widely used total sulfur analysis method for petroleum products (gas hydrocarbons such as natural gas, light oil, etc.) Comparative advantages: wide measurement range, high sensitivity, fast analysis speed, no need for any reagents, etc., but currently there is no UV fluorescence online total sulfur analyzer or online UV fluorescence total sulfur analysis method that can be analyzed in time, so it cannot be monitored in time. The total sulfur content of raw materials and intermediate products in the production process, especially the desulfurization effect cannot be monitored in time during the desulfurization production process, so the development and manufacture of ultraviolet fluor...
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IPC IPC(8): G01N21/64
CPCG01N21/64
Inventor 张继勇刘东明
Owner 北京润道油液监测技术有限公司