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Smoke duct and two-in-one converging pipe thereof

A manifold, two-in-one technology, applied in the treatment of combustion products, combustion methods, exhaust gas devices, etc., can solve problems such as large resistance and uneven flow field, and achieve low noise, reduced energy consumption, and reduced consumables. Effect

Inactive Publication Date: 2014-08-06
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, the present invention overcomes the defects of the prior art and provides a two-in-one manifold, which aims to solve the problems of large resistance and uneven flow field of the traditional two-in-one manifold

Method used

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  • Smoke duct and two-in-one converging pipe thereof
  • Smoke duct and two-in-one converging pipe thereof
  • Smoke duct and two-in-one converging pipe thereof

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below in conjunction with accompanying drawings:

[0022] Such as figure 2 , 3 As shown, a two-in-one manifold 10 includes a first branch pipe 100, a second branch pipe 200, and a confluence pipe 300. The first branch pipe 100 includes a first reducing section 110 and a first main body section 120. The two branch pipe 200 includes a second diameter reducing section 210 and a second main body section 220. One end of the first reducing diameter section 110 communicates with the first main body section 120, the other end communicates with the confluence pipe, and one end of the second reducing diameter section 210 communicates with the first body section 120. The two main body sections 220 communicate with each other, and the other end communicates with the confluence pipe, and the adjacent sides of the first reducing section 110 and the second reducing section 210 communicate with each other, the first main bo...

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Abstract

The invention discloses two-in-one converging pipe which comprises a first branch pipe, a second branch pipe and a converging pipe. The first branch pipe comprises a first reducing section and a first body section. The second branch pipe comprises a second reducing section and a second body section. One end of the first reducing section is communicated with the first body section, and the other end of the first reducing section is communicated with the converging pipe. One end of the second reducing section is communicated with the second body section, and the other end of the second reducing section is communicated with the converging pipe. The adjacent sides of the first reducing section and the second reducing section are communicated. The cross section of the first body section, the cross section of the second body section and the cross section of the converging pipe are round. The fullness of smoke in the two-in-one converging pipe is high, a flow field is even, and therefore noise caused by vibration of a smoke duct body can be avoided. The resistance, obtained through simulation and calculation by adopting the fluent fluid simulation software, of the two-in-one converging pipe is small and is about 60 Pa, and energy consumption can be effectively reduced. In addition, compared with a traditional two-in-one converging pipe, material consumption of the two-in-one converging pipe is greatly reduced. The invention further discloses a smoke duct.

Description

technical field [0001] The invention relates to the technical field of thermal power generation, in particular to a flue gas duct and a two-in-one manifold. Background technique [0002] Two-in-one confluence or diversion pipes are often used in the smoke and air system of thermal power plants. Traditional two-in-one confluence pipes such as figure 1 As shown, the induced draft fans on both sides are hedging and confluent, and the flue gas at the outlets of the induced fans on both sides is hedging and converging and then exits the main flue. However, this rectangular two-in-one pairing confluence has the following problems: Flow field: through the FLUENT fluid simulation software After simulating its velocity field, it is concluded that the velocity distribution of this type of rectangular two-in-one flush manifold at the confluence is very uneven, and the uneven flow field is usually the source of the vibration and noise of the flue gas duct body, and the unit operates saf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J13/04
Inventor 李东民
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD