High temperature and high dusty burner gas quencher

A quencher and dust furnace technology, which is applied in the field of high-temperature and high-dust furnace gas quencher, can solve problems such as tube sheet damage and heat exchange tube blockage, and achieve the effects of avoiding deformation and tearing, reducing thickness, and compact structure

Active Publication Date: 2010-10-06
NANJING UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to solve the serious damage caused by the huge temperature difference stress on the tube plate caused by the high temperature thermal expansion of the existing waste heat boiler heat exchange tube, and the special physical characteristics of the high-dust-containing furnace gas cause

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  • High temperature and high dusty burner gas quencher
  • High temperature and high dusty burner gas quencher
  • High temperature and high dusty burner gas quencher

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the drawings:

[0034] A high-temperature and high-dust furnace gas quencher, comprising a quencher inlet pipe 1, an outlet pipe 9, a furnace gas outlet pipe 13, and a cold air inlet pipe 17. The high-temperature and high-dust furnace gas quencher is made of double-tube water / steam natural Circulating primary cooling structure and shell air secondary cooling structure. The double sleeve is composed of a double sleeve outer tube 18 and a heat transfer inner tube 5. The double sleeves are respectively connected with two oval tube plates 4 arranged in opposite directions. The two ends of the double sleeve are respectively placed in the hot end waist-shaped header 8 and the cold end waist-shaped header 14, and the middle of the double sleeve is provided with an outer cylinder expansion joint 16. The quencher inlet pipe 1 and the hot-end waist-shaped collecting pipe 8 are connected by a U-shaped thin plat...

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Abstract

The invention provides a high temperature and high dusty burner gas quencher which relates to a novel heat exchanger and is an important device for recovering afterheat of high temperature and high dusty burner gas from various industrial stoves. The body structure of the quencher includes a double-sleeve water/steam natural circulation primary cooling structure and a tube casing air secondary cooling structure, wherein double sleeves are respectively connected with two opposite elliptic tube plates to form a waist-shaped collecting tube box together with expansion sections, integral enhanced rings, inner linings and the like. A layer of cobalt fire-resistant casting materials is covered on the elliptic tube plates connected with inner tubes, and the inner tubes of the double sleeves are provided with fire and abrasion resistant inner lining sleeves on tube ends. The body of the quencher is connected with steam pockets through an ascending tube and a descending tube to form a water/steam natural circulation system.

Description

Technical field [0001] The invention relates to a high-temperature furnace gas waste heat recovery device for heating furnaces in petroleum, chemical, building materials and other industries. It is especially suitable for the quench cooler of various high temperature cracking furnaces and high dust furnace gas phase matching, specifically a high temperature and high dust furnace gas quencher that uses high efficiency heat exchanger to realize waste heat recovery. The invention is not only applicable to carbon black cracking furnaces, but also applicable to furnace gas waste heat recovery systems of various high temperature and high dust kilns. Background technique [0002] In ethylene cracking plants, waste heat boilers are commonly used to recycle the waste heat of high-temperature furnace gas generated during the cracking process of the cracking furnace to reduce costs, while meeting the temperature requirements of the next process device and reducing its environmental pollutio...

Claims

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Application Information

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IPC IPC(8): F27D17/00
Inventor 虞斌涂善东莫逊
Owner NANJING UNIV OF TECH
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