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Heat exchanger with collected boxes

A technology for heat exchangers and tube-and-tube heat exchangers, which is applied in the direction of heat exchanger types, heat exchanger shells, indirect heat exchangers, etc., and can solve the problem of water temperature rise, tail flue gas and water temperature difference in the heat exchanger Reduce and affect the heat transfer effect, etc., to achieve the effect of convenient assembly, low heat loss and high thermal efficiency

Inactive Publication Date: 2007-05-09
华元新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some points to be further improved in this boiler. The problem of waste heat utilization of the exhausted flue gas has not been completely solved in the furnace. The downcomer and convection tube in the furnace are directly connected with the tube heat exchanger, which causes the temperature of the water in the tube heat exchanger to rise. High, the temperature difference between the flue gas at the tail and the water in the heat exchanger is reduced, which affects the heat exchange effect

Method used

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  • Heat exchanger with collected boxes
  • Heat exchanger with collected boxes
  • Heat exchanger with collected boxes

Examples

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Embodiment Construction

[0017] Below in conjunction with embodiment and accompanying drawing for further description:

[0018] See attached picture.

[0019] Figures 1 and 2 are embodiments of the header heat exchanger of the present invention, including a shell 1, a smoke pipe 9, a smoke inlet 10, and a water inlet 8, and is characterized in that the shell 1 is provided with left and right headers 2, 3 , The header is connected with the shell, and the front end communicates. There are water wall tube holes 4, drop tube holes 5, and rear header connection holes 6 on the header. The shell 1 is provided with a smoke pipe 9, the smoke pipe 9 is axially located inside the shell, and gathers in the smoke collecting box 13, and the smoke collecting box 13 communicates with the smoke exhaust port 7; the said water inlet connecting pipe 8 is arranged in the shell 1 backend.

[0020] As shown in the figure, the casing 1 and the smoke pipe 9 are combined into a tube-and-tube heat exchanger. The shell and tu...

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Abstract

A heat exchanger of header is a tubular heat exchanger prepared as setting connection position of right and left headers with shell to be higher than level center line of tubular heat exchanger and setting right and left headers symmetrically along longitudinal center line of tubular heat exchanger, setting vertical distance of tubular heat exchanger top to top of right and left headers to be less than or equal to 150mm and arranging smoke exhaust adaptor at external end of smoke collection box.

Description

technical field [0001] The invention belongs to boiler accessories. Specifically, it is a countercurrent heat exchange device suitable for use with a small saturated steam boiler. Background technique [0002] For a horizontal fast-loading boiler with general saturated steam, the flue gas enters the flue pipe of the boiler drum from the furnace, and is discharged outside the furnace after heat exchange through the water-cooled wall tube. The temperature of the exhausted flue gas must be higher than that of the saturated steam in the drum temperature. To this end, people use economizers to recover waste heat. Economizer is an external heat exchange equipment. It can recover some heat energy, but the overall efficiency is not high. Matching with the boiler also increases the footprint of the boiler. [0003] Compared with the general horizontal fast-loading boiler with saturated steam, there is also a horizontal double-layer grate back-firing boiler. For example, in my C...

Claims

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Application Information

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IPC IPC(8): F28D7/00F28F9/02
Inventor 华元新华俊
Owner 华元新