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Connecting container, water cooling wall device and boiler

A water-cooled wall and container technology, which is used in the field of connecting containers, water-cooled wall devices and boilers, can solve the problems of large blocking area, high header height, and increased resistance of flue gas passing through bypass pipes, and achieves increased effective area, The effect of reducing the resistance and reducing the height value

Pending Publication Date: 2021-06-11
CHINA HUADIAN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the fact that in the prior art, the cross-sectional shape of the header on the outside of the communication port where the bypass pipe communicates with the boiler is circular, resulting in a high header height and a large blocking area outside the communication port, Defects that lead to increased resistance when flue gas passes through the bypass pipe

Method used

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  • Connecting container, water cooling wall device and boiler
  • Connecting container, water cooling wall device and boiler
  • Connecting container, water cooling wall device and boiler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides a connection container, such as figure 1 and figure 2 As shown, it includes a container body 1. When in use, the connecting container is installed outside the communication port where the bypass pipe communicates with the boiler. The axis of the container body 1 is arranged horizontally along the outer wall of the boiler and the axis of the container body 1 is perpendicular to the smoke Air flow direction.

[0039] The cross section of the container body 1 is the first section, and the maximum length of the first section parallel to the direction of smoke flow is its depth value, that is, figure 2 The maximum length of the first cross-section in the left and right direction is the depth value, and the maximum length of the first cross-section perpendicular to the direction of flue gas circulation is its height value, that is figure 2 The maximum length in the up and down direction of the first section is the height value, and the depth valu...

Embodiment 2

[0043] This embodiment provides a water-cooled wall device, such as figure 1 As shown, it includes the connection container in Embodiment 1 and a plurality of water wall pipes connected with the connection container.

[0044] Among them, the water wall pipe includes the pipe body, see Figure 3 to Figure 6 , the cross-sectional shape of the pipe body is the first shape, the maximum length of the first shape parallel to the flow direction of the smoke is the first length, the maximum length perpendicular to the flow direction of the smoke is the second length, and the first length is greater than the second length; The cross-sectional area of ​​the pipe body is the same as that of the circular water wall pipes adjacent up and down.

[0045] For example, a connection container is a header. Normal water-cooled wall pipes are arranged vertically along the outer wall of the boiler, and multiple water-cooled wall pipes at a certain height interval are connected through headers. W...

Embodiment 3

[0055] This embodiment provides a boiler, which includes the water-cooled wall device in Embodiment 2. In the boiler with this structure, the projected area of ​​the header and the water wall pipe on the connecting port is small, the resistance of the flue gas passing through the bypass pipe is small, and the boiler system has low resistance and energy saving.

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Abstract

The invention provides a connecting container, a water cooling wall device and a boiler. The connecting container comprises a container body, wherein the connecting container is installed on the outer side of a communicating opening for communicating a bypass pipeline with the boiler, the axial direction of the container body is horizontally arranged along the outer wall of the boiler, and the axial direction of the container body is perpendicular to the flue gas circulation direction; and the depth value of the cross section of the container body is larger than the height value. According to the connecting container with the structure, under the condition that the total capacity and the axial length of the connecting container are not changed, the depth value of the connecting container parallel to the flue gas circulation direction is increased, and the height value of the connecting container perpendicular to the connecting container direction is reduced, namely, the cross section of the container body is made into a prolate shape, so that the first cross-sectional area is same as the cross-sectional area of a cylindrical connecting container in the prior art, compared with a cylindrical header in the prior art, the height value of the connecting container is reduced, the total projection surface area of the connecting container on the communicating opening is reduced, the effective area through which flue gas can pass is increased, and the resistance of the flue gas passing through the bypass pipeline is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of boiler heat dissipation, in particular to a connection container, a water-cooled wall device and a boiler. Background technique [0002] For the modified or newly-built denitrification reactor in the power plant, a bypass flue is generally added on the side wall of the boiler at the front end of the denitrification reactor. The flue gas temperature is not too high, so as to ensure the efficiency of denitrification. The side wall of the boiler is provided with a rectangular connection port connected with the bypass pipe, through which the high-temperature flue gas enters the bypass pipe, and then exits the boiler through the bypass pipe. A large number of vertically arranged water-cooled wall pipes are arranged on the outside of the connecting port, and the multiple water-cooled wall pipes are arranged in parallel and spaced apart. connected together. [0003] When the opening area of ​​the connecting p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23M5/08F22B37/10
CPCF22B37/104F23M5/08
Inventor 夏怀鹏白永锋吴冲王凯亮汪洋李伟
Owner CHINA HUADIAN ENG