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Sulfur dioxide conversion rate automatic sampling system

A sulfur dioxide and automatic sampling technology, applied in sampling, sampling devices, instruments, etc., can solve the problems of low efficiency and large difference in operation proficiency, and achieve the effect of simple operation, high sampling efficiency and automation

Pending Publication Date: 2021-06-22
SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing sampling of sulfur dioxide conversion rate is completely manual operation, and the operation proficiency of different personnel is quite different, and the efficiency is low

Method used

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  • Sulfur dioxide conversion rate automatic sampling system

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Embodiment Construction

[0016] The embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0017] Such as figure 1 As shown, an automatic sampling system for the conversion rate of sulfur dioxide includes a flue gas sampling tube 1, a quartz spiral tube 2, a heated constant temperature water tank 3, a first solenoid valve 4, a first pumping pump 5, a second solenoid valve 6, and three Sulfur oxide sample tank 7, first cut-off valve 8, waste liquid tank 9, second stop valve 10, sulfur dioxide sample tank 11, second liquid pump 12, third solenoid valve 13, refrigerated constant temperature water tank 14, secondary absorption Bottle 15, flue gas sampling pump 16, dryer 17, hydrogen peroxide tank 18, deionized water tank 19, fourth solenoid valve 20, fifth solenoid valve 21, primary absorption bott...

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Abstract

The invention discloses a sulfur dioxide conversion rate automatic sampling system which comprises a flue gas sampling tube, a quartz spiral tube, a sulfur trioxide sample tank, a sulfur dioxide sample tank, a secondary absorption bottle, a flue gas sampling pump, a hydrogen peroxide tank, a deionized water tank and a primary absorption bottle; the flue gas sampling pipe is sequentially communicated with the quartz spiral pipe, the first-stage absorption bottle, the second-stage absorption bottle and the flue gas sampling pump, and the hydrogen peroxide tank and the deionized water tank are communicated with the first-stage absorption bottle and the second-stage absorption bottle and then communicated to the sulfur dioxide sample tank through the first-stage absorption bottle and the second-stage absorption bottle in the flowing direction of a solution. The deionized water tank is communicated with the quartz spiral tube and then is communicated with the sulfur trioxide sample tank. The sulfur dioxide conversion rate can be obtained after all samples in the sulfur dioxide sample tank and the sulfur trioxide sample tank are taken out for sulfate ion concentration analysis and calculation, the automation of the sampling process can be realized, and the system has the characteristics of simple structure, simplicity in operation, high sampling efficiency and the like, and has important practical significance.

Description

technical field [0001] The invention belongs to the technical field of sampling systems for sulfur dioxide conversion rates, in particular to an automatic sampling system for sulfur dioxide conversion rates. Background technique [0002] Sulfur dioxide conversion rate is an important performance index of SCR denitration catalyst. After the flue gas from a coal-fired power plant passes through the SCR denitrification device, part of the sulfur dioxide in the flue gas will be oxidized to sulfur trioxide by the catalyst, and the sulfur trioxide will react with ammonia to form ammonium bisulfate, which will easily cause the blockage of the boiler air preheater equipment. At present, there is no instrument for direct measurement of the conversion rate of sulfur dioxide to sulfur trioxide. It is necessary to use off-line sampling to extract a certain amount of flue gas, collect samples by chemical absorption, and analyze and calculate the concentration of sulfate ions in the sampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/24G01N1/22
CPCG01N1/2214G01N1/2247G01N1/24G01N2001/2217
Inventor 卢承政王建阳许辉
Owner SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
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