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Nitric oxide efficient control system and control method of gas internal combustion engine

A gas-fired internal combustion engine and nitrogen oxide technology, applied in internal combustion piston engines, combustion engines, exhaust gas treatment, etc., can solve problems such as uneven distribution of high ammonia-nitrogen ratio, increase ammonia escape rate, reduce denitrification efficiency, etc., to improve denitrification performance , reduce the ammonia escape rate and improve the denitrification efficiency

Active Publication Date: 2018-05-18
HUADIAN ELECTRIC POWER SCI INST CO LTD
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Problems solved by technology

The above comparison documents have uneven distribution of high ammonia nitrogen ratio, which reduces the denitrification efficiency and improves the ammonia escape rate

Method used

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  • Nitric oxide efficient control system and control method of gas internal combustion engine

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0030] Example.

[0031] see figure 1 It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the present invention Therefore, it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall into the within the scope covered by the technical content disclosed in the present invention. At the same time, if terms such as "upper", "lower", "left", "right", "middle" and "one" are used in this specification, th...

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Abstract

The invention relates to a nitric oxide efficient control system and control method of a gas internal combustion engine. An outlet of the internal combustion engine is communicated with a first-stageammonia spraying device through a No.1 pipeline; the first-stage ammonia spraying device communicates with one end of a No.2 pipeline; the other end of the No.2 pipeline passes through a high-pressuregenerator; the other end of the No.2 pipeline is communicated with an inlet of an SCR reactor; an outlet of the SCR reactor is communicated with one end of a No.3 pipeline; the other end of the No.3pipeline passes through a low-pressure generator; a reducing agent storage groove is communicated with a dilution fan through a No.4 pipeline; one end of the No.5 pipeline is communicated with the dilution fan; one end of a No.6 pipeline and one end of a No.7 pipeline are communicated with the other end of the No.5 pipeline; the other end of the No.6 pipeline is communicated with the first-stage ammonia spraying device; the other end of the No.7 pipeline is communicated with the second-stage ammonia spraying device. The ammonia-nitrogen ratio distribution uniformity degree is improved; the denitration efficiency is improved; the ammonia escape rate is reduced; the refrigeration effect of a lithium bromide refrigeration unit is not influenced.

Description

technical field [0001] The invention relates to a high-efficiency control system and method for nitrogen oxides of a gas-fired internal combustion engine, which belongs to the field of flue gas denitrification of an internal combustion engine energy station, and in particular relates to an SCR flue gas denitrification technology suitable for high exhaust gas temperature of a gas-fired internal combustion engine. Background technique [0002] The internal combustion engine uses natural gas or fuel oil as fuel, drives the generator to generate electricity through combustion, and generates high-grade electric energy. After stable operation, the exhaust gas temperature is generally above 400°C (the normal operating temperature is around 450°C), and the temperature of the cylinder jacket water of the internal combustion engine Above 90°C, in order to make full use of the temperature of the flue gas discharged from the internal combustion engine and the temperature of the cylinder ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/20F01N5/02F01N3/28
CPCF01N3/2066F01N3/28F01N5/02F01N2610/02F01N2570/14Y02T10/12Y02A50/20
Inventor 赵大周周宇昊阮炯明
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD
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