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Selective catalytic reduction (SCR) denitration flow field simulation system and method

A technology for simulating systems and flow fields. It is applied in separation methods, chemical instruments and methods, and dispersed particle separation. It can solve problems such as affecting the service life of equipment, affecting denitration efficiency, and increasing equipment pressure loss, so as to achieve true measured data. Reliable, highly informative, compact results

Active Publication Date: 2013-06-12
CPI YUANDA ENVIRONMENTAL PROTECTION ENG +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In order to give full play to the catalytic effect of the catalyst, it is necessary to ensure that the flow field distribution of the system is very uniform (including temperature distribution, distribution of ammonia and nitrogen oxides, and flow velocity distribution, etc.). There should be no dust accumulation in the tunnel (severe dust accumulation will cause blockage, increase the pressure loss of equipment, and affect the service life of subsequent equipment), if dust accumulation will directly affect the denitrification efficiency

Method used

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  • Selective catalytic reduction (SCR) denitration flow field simulation system and method

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Embodiment Construction

[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0024] Such as figure 1 As shown, the SCR denitration flow field simulation system of the present invention includes an SCR denitration reactor model 1, a flow measurement device 2, a dust collector 4, an induced draft fan 5 and a methane gas injection device 12; It is safe, so methane gas is used.

[0025] The SCR denitration reactor model 1 is obtained by reducing the size of the SCR denitration reactor according to the ratio of 1:10 to 1:15 according to the size of the specific project SCR denitration reactor provided by the design manufacturer, including the economizer outlet section 6, The SCR denitrification reactor 9 and the air preheater inlet section 11, the...

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Abstract

The invention discloses an SCR denitration flow field simulation system, which comprises an SCR denitration reactor model, a flow measuring device, a deduster, a draught fan and a methane gas jetting device. The SCR denitration reactor model is made by reducing a real SCR denitration reactor according to a ratio of 1:10 to 1:15, and comprises a coal economizer outlet section, the SCR denitration reactor and an air preheater inlet section, wherein the air preheater inlet section is connected to a horizontally arranged measuring pipe. The flow measuring device is arranged on the measuring pipe.The outlet of the measuring pipe is connected to the inlet of the deduster through a structure in which a vertical pipe is connected with a horizontal pipe, and the outlet of the deduster is connected with the draught fan. A three-way switch is arranged on the measuring pipe, and the methane jetting device is connected to an ammonia spraying and mixing section through a jetting pipe. When the system disclosed by the invention is used, a flow field, a pressure field and a concentration field in the SCR denitration reactor can be conveniently measured, the motion of fly ash in the reactor can be really simulated, and a basis is provided for the structural design and optimization of a real reactor.

Description

technical field [0001] The invention relates to the field of denitrification equipment, in particular to an SCR denitrification flow field simulation system, and also to a SCR denitration flow field simulation method. Background technique [0002] For the SCR denitration reaction device, its core is the denitration catalyst. Under the action of the catalyst, the NOx and NH in the flue gas 3 Rapid reaction to generate N 2 and H 2 O. In order to give full play to the catalytic effect of the catalyst, it is necessary to ensure that the flow field distribution of the system is very uniform (including temperature distribution, distribution of ammonia and nitrogen oxides, and flow velocity distribution, etc.). There should be no dust accumulation in the tunnel (severe dust accumulation will cause blockage, increase the pressure loss of equipment, and affect the service life of subsequent equipment), if dust accumulation will directly affect the denitrification efficiency. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/86B01D53/56
Inventor 杜云贵邓佳佳隋建才蒙剑聂华吴其荣黄杨柳何凡王进
Owner CPI YUANDA ENVIRONMENTAL PROTECTION ENG
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