Construction method for anti-bonding automatic-flow coke furnace raw gas waste heat recovery heat transfer unit

A technology of heat exchange unit and waste heat recovery, which is applied in the direction of heat exchanger types, indirect heat exchangers, lighting and heating equipment, etc., and can solve the problems of tar sticking, coking, and tar sticking on heat exchange devices, etc. , achieve the effect of saving resources, preventing sticking and coking

Active Publication Date: 2015-06-10
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem in the prior art that components such as tar are easily bonded to the heat exchange device after condensation during waste heat recovery of raw coal gas in the prior art, and provide a heat exchange unit for recovery of waste heat from raw coal gas of an anti-bonding self-flowing coke oven The construction method effectively solves the problem that the tar on the surface of the heat exchange tube is easy to stick and coke in the process of waste heat recovery and utilization of coke oven waste gas, and recycles and utilizes the tar produced in the process of waste heat recovery and utilization of coke oven waste gas

Method used

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  • Construction method for anti-bonding automatic-flow coke furnace raw gas waste heat recovery heat transfer unit
  • Construction method for anti-bonding automatic-flow coke furnace raw gas waste heat recovery heat transfer unit
  • Construction method for anti-bonding automatic-flow coke furnace raw gas waste heat recovery heat transfer unit

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Experimental program
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Effect test

Embodiment 1

[0040] like figure 1 , figure 2 , image 3 , Figure 4 and Figure 5As shown, an anti-bonding self-flowing self-flowing coke oven raw gas waste heat recovery heat exchange unit in this embodiment includes a heat exchange vertical pipe 1, a heat exchange horizontal pipe and a heat exchange working medium delivery pipe, wherein: the two ports of the heat exchange horizontal pipe Sealed, the heat exchange horizontal tube includes an upper heat exchange horizontal tube 201 and a lower heat exchange horizontal tube 202 , and the heat exchange working medium delivery tube includes an upper heat exchange working medium delivery tube 301 and a lower heat exchange working medium delivery tube 302 . The heat exchange unit body includes a plurality of single-row components arranged at the same interval and fixed together to form a rectangular parallelepiped heat exchange unit body. The single-row assembly includes a heat exchange vertical pipe 1, an upper heat exchange horizontal pi...

Embodiment 2

[0059] The structure of the heat exchange unit for recovering waste heat from raw coke oven waste gas that resists sticking in this embodiment is basically the same as that in Embodiment 1, the difference being that the body of the heat exchange unit is inclined 45 degrees upward along the horizontal plane during assembly; The total length of the heat exchange unit body is 3000mm, the total height is 1800mm, and the total width is 1800mm; the diameter of the heat exchange vertical tube 1 is 50mm, and the length of the heat exchange vertical tube 1 is 1800mm; The length of the heat horizontal pipe is 3000mm; the diameter of the heat exchange working medium delivery pipe is 50mm, and the length of the heat exchange working medium delivery pipe is 300mm; the distance between adjacent heat exchange vertical pipes 1 on the single row assembly outside the heat exchange unit body is 10mm.

[0060] The construction method of an anti-bonding self-flowing coke oven raw gas waste heat re...

Embodiment 3

[0062] The structure of the anti-bonding self-flowing coke oven raw gas waste heat recovery heat exchange unit of this embodiment is basically the same as that of embodiment 1, the difference is that the heat exchange unit body is inclined 30 degrees upward along the horizontal plane during assembly; The total length of the heat exchange unit body is 2000mm, the total height is 1100mm, and the total width is 1050mm; the diameter of the heat exchange vertical tube 1 is 40mm, and the length of the heat exchange vertical tube 1 is 1100mm; The length of the heat horizontal pipe is 2000mm; the diameter of the heat exchange working medium delivery pipe is 40mm, and the length of the heat exchange working medium delivery pipe is 225mm; the distance between adjacent heat exchange vertical pipes 1 on the single row assembly outside the heat exchange unit body is 6mm.

[0063] The construction method of an anti-bonding self-flowing coke oven raw gas waste heat recovery heat exchange uni...

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Abstract

The invention discloses a construction method for an anti-bonding automatic-flow coke furnace raw gas waste heat recovery heat transfer unit and belongs to the technical field of raw gas waste heat recovery utilization in the process of the coking process. The construction method is: welding of a single-row assembly; bottom clearing of the single-row assembly; aerosol spraying of non-stick coating; and welding of the heat transfer unit. The upper end ports of all the upper heat transferring working medium delivery pipes are respectively welded and communicated with a steam discharge pipe, and the lower end ports of all the lower heat transferring working medium delivery pipes are respectively welded and communicated with a cooling water inlet pipe. When the heat transferring unit body is assembled, the included angle between the plane where an insulation board arranged on the lower side of the heat transferring unit body and the horizontal plane is 15-45 degrees. Since the construction mode that the single-row assembly is welded firstly and the then the non-stick coating is sprayed, the construction method for the anti-bonding automatic-flow coke furnace raw gas waste heat recovery heat transfer unit not only can facilitate the uniform spraying of the anti-stick coating, but also avoid that the anti-stick coating is damaged by the high temperature and machineries when being welded.

Description

technical field [0001] The invention belongs to the technical field of waste heat recovery and utilization of raw gas in coking process, and more specifically relates to a construction method of a heat exchange unit for recovery of waste heat of raw gas in an anti-bonding artesian coke oven. Background technique [0002] At present, the energy consumption of the iron and steel industry is huge, and the waste heat recovery of coke oven waste gas is a major concern of iron and steel energy conservation work. It is the main energy-saving direction for building resource-saving and environmentally friendly green coking plants, and it is also one of the main ways to reduce coke oven energy consumption. . Judging from the distribution of heat loss in the coking process, the waste heat contained in raw coal gas accounts for about 36% of the total heat, which is equivalent to the sensible heat brought out by the red coke released from the carbonization chamber. It is recovered from t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/00F28F19/02
Inventor 陈光闫丹包向军
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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