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Compact Thermal Stress Compensated Radiant Tube Heat Exchanger

A heat exchange device and radiant tube technology, applied in the field of waste heat devices, can solve problems such as high-temperature flue gas waste heat cannot be recovered and utilized in time, the field operating environment is harsh, and pipelines are prone to cracks, etc., so as to optimize the pipeline layout and operating environment, reduce Potential safety hazards and the effect of improving energy efficiency

Active Publication Date: 2015-07-29
BAOSTEEL ENG & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristic of this structure is that air branch pipes, gas branch pipes and flue gas branch pipes are arranged in front of each radiant tube. The temperature is too high and the on-site operating environment is harsh; on the other hand, the flue gas pipeline is in a high-temperature environment for a long time, cracks are prone to appear in the weak links of the pipeline, and the outside air is easily sucked into the flue gas pipeline. Combustible components that are not completely burned may cause secondary combustion in the flue gas pipeline, and even cause an explosion accident, posing a major safety hazard

Method used

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  • Compact Thermal Stress Compensated Radiant Tube Heat Exchanger

Examples

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Embodiment 1

[0022] A compact thermal stress compensation type radiant tube heat exchange device, including radiant tube 1, header 2, header casing 21, branch pipe 3, branch pipe casing 31, inlet ring box 4, inlet pipe 41, and gas outlet ring box 5 and outlet pipe 51, such as figure 2 As shown, the specific structure is: the radiant tube 1 is provided with a smoke exhaust pipe 11, the header casing 21 is set outside the header 2, the branch pipe casing 31 is set outside the branch pipe 3, and the branch pipe 3 passes through the header casing 21 and the branch pipe 3. The header pipe 2 is through-connected, the exhaust pipe 11 is connected through the branch pipe sleeve 31 and the branch pipe 3, and the outer side of the header sleeve pipe 21 is covered with the air intake ring box 4, and the air intake ring box 4 and the header sleeve pipe 21 are connected through through connection , the air inlet ring box 4 is provided with an air inlet pipe 41, and the outside of the branch pipe sleev...

Embodiment 2

[0025] A compact thermal stress compensation type radiant tube heat exchange device, including radiant tube 1, header 2, header casing 21, branch pipe 3, branch pipe casing 31, inlet ring box 4, inlet pipe 41, and gas outlet ring box 5 and air outlet pipe 51, also includes header expansion joint 22, header fin 23, branch expansion joint 32, branch flange 33, branch sleeve flange 34 and telescopic sleeve 35, as image 3 and Figure 4 As shown, the specific structure is: the header expansion joint 22 is connected in series on the header 2, the header fin 23 is arranged on the outer surface of the header 2, and a branch pipe is connected in series at the front end of the branch pipe 3 where the branch pipe 3 and the header pipe 2 pass through. Expansion joint 32, one end of the branch pipe expansion joint 32 is sealed and connected to the branch pipe 3 through the branch pipe flange 33, a telescopic sleeve 35 is connected in series around the branch pipe expansion joint 32 on the...

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Abstract

The invention relates to the field of devices utilizing waste heat in furnaces, kilns, baking ovens or distillation furnaces, and specifically relates to a compact thermal stress compensatory radiant tube heat exchange device. The compact thermal stress compensatory radiant tube heat exchange device comprises a radiant tube (1), wherein a smoke exhaust pipe (11) is arranged on the radiant pipe (1). The compact thermal stress compensatory radiant tube heat exchange device is characterized by further comprising a collection pipe (2), a collection pipe sleeve (21), a branch pipe (3), a branch pipe sleeve (31), air inlet ring box (4), an air inlet pipe (41) an air outlet ring box (5) and an air outlet pipe (51), wherein the branch pipe (3) penetrates through the collection pipe sleeve (21) to be communicated with the collection pipe (2); the smoke exhaust pipe (11) penetrates through the branch pipe sleeve (31) to be communicated with the branch pipe (3); the air inlet ring box (4) is communicated with the collection pipe sleeve (21); and the air outlet ring box (51) is communicated with the branch pipe sleeve (31). According to the compact thermal stress compensatory radiant tube heat exchange device, the operation space is saved, the waste heat utilization rate is high, the safety coefficient is high and the service life is long.

Description

technical field [0001] The invention relates to the field of devices for utilizing waste heat in general furnaces, kilns, baking furnaces or distillation furnaces, in particular to a compact thermal stress compensation type radiant tube heat exchange device. Background technique [0002] Industrial furnaces are heating equipment widely used in smelting and chemical industries. Indirect heating industrial furnaces use combustion gas to obtain heat, and use radiant tubes as heating elements. During operation, a large amount of high-temperature flue gas will be emitted. The atmosphere not only wastes heat energy resources, but also pollutes the environment. At present, the high-temperature flue gas and the gas to be preheated are commonly introduced into the heat exchanger, so that the heat exchange between the high-temperature flue gas and the gas to be preheated occurs in the heat exchanger, so as to achieve the purpose of utilizing the waste heat of the flue gas. The cylind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23L15/00F27D17/00
CPCY02E20/34Y02P10/25
Inventor 谷硕孙志斌李国杰薛根山王林建
Owner BAOSTEEL ENG & TECH GRP