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Quenching heat exchanger with variable spray hole density

一种急冷换热器、喷淋孔的技术，应用在水淋冷却器、换热器类型、直接接触式换热器等方向，能够解决无法实现工艺要求、无法冷却、不能利用余热回收装置回收热量等问题，达到最佳效果、加快烟气流速、增大接触面积的效果

Active Publication Date: 2016-09-07
FOSHAN ZHUNDA MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for hazardous waste incineration systems where the content of halogen elements in the waste is greater than 5% or the flue gas is small, the waste heat recovery device cannot be used to recover heat, and the high-temperature flue gas after incineration at 1100°C cannot be directly cooled to below 200°C. The device structure cannot meet the process requirements

Method used

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  • Quenching heat exchanger with variable spray hole density
  • Quenching heat exchanger with variable spray hole density
  • Quenching heat exchanger with variable spray hole density

Examples

Experimental program
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Effect test

Embodiment Construction

[0044] figure 1 An overall cutaway view of the quench heat exchanger is shown. Such as figure 1 As shown, the quench heat exchanger includes a shell 5, and the shell 5 includes a tapering section 24 and a diverging section 26, and the converging section 24 and the diverging section 26 are connected by a throat section 25; The tapered section 24 enters, first passes through the tapered section 24 and then passes through the tapered section 26 , and a chilling ring 2 is set at the position of the flue gas inlet 1 of the tapered section 24 .

[0045] Such as figure 2 As shown, the quenching ring 2 is a hollow ring structure. The quenching ring 2 includes an inner ring chamber 18 and an outer ring chamber 17, and the housing 5 is inserted into the quenching ring 2, as figure 2 As shown, the quench ring 2 includes an outer shell 12 and an inner partition 13 . The inner partition 13 and the casing 5 form an inner chamber 18 , and the cavity formed by the inner partition 13 , ...

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Abstract

The invention provides a quenching heat exchanger with the variable spray hole density. The quenching heat exchanger comprises a shell, a chilling ring, a water-blocking annular plate and a two-stage quenching device. The chilling ring, the water-blocking annular plate and the two-stage quenching device are arranged in the shell. Smoke enters the quenching heat exchanger from a heat exchanger inlet and sequentially passes through the chilling ring, the water-blocking annular plate and the two-stage quenching device. A plurality of spray holes are formed in the chilling ring. The hole diameters of the spray holes become smaller and smaller upwards along a quenching ring gap. By setting the hole diameters of the spray holes in the vertical direction, the optimal effect of heat exchange is achieved.

Description

technical field [0001] The invention belongs to the field of heat exchangers, in particular to a Venturi quench heat exchanger in which flue gas and water directly contact and exchange heat. The invention is mainly applied to the incineration system of hazardous waste containing halogen elements. Background technique [0002] With the development of the chemical industry, the production capacity of chemical products containing halogen elements has been greatly enlarged, and environmental protection issues have become increasingly prominent. The waste gas and waste liquid generated during the production process contain a large amount of organic compounds with extremely active halogen elements. Incineration of this type of waste must ensure that the dioxins in the purified flue gas meet the national environmental protection emission standards. A quenching device will be installed in the process to prevent the regeneration of dioxins. Usually, the regeneration temperature range...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28C3/08
CPCB01D47/06B01D53/40B01D53/78F23J15/02F23J15/022F23J15/06F28C3/08F28F13/12F28F25/06Y02E20/30
Inventor 朱峰
Owner FOSHAN ZHUNDA MASCH CO LTD
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