Temperature reduction method for hot gas and device thereof

A technology of high-temperature exhaust gas and cooling device, which is applied to heat exchange equipment, fixed tubular conduit components, heat exchanger types, etc., can solve the problem of increasing the composition and volume flow of high-temperature exhaust gas, difficult to control the heat exchange process, and low heat exchange efficiency. and other problems, to achieve the effect of saving investment cost, solving thermal expansion, and reducing pressure load

Active Publication Date: 2010-02-24
西安航天华威化工生物工程有限公司
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Problems solved by technology

The cooling device not only increases the gas composition and volume flow rate of the high-temperature exhaust gas, but also the heat exchange process is difficult to control and the heat exchange efficiency is low

Method used

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  • Temperature reduction method for hot gas and device thereof
  • Temperature reduction method for hot gas and device thereof
  • Temperature reduction method for hot gas and device thereof

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Embodiment Construction

[0020] The heat exchange tube group of the tube bundle cooling device of the present invention adopts an annular heat exchange group, and the ring structure can solve the problem of thermal expansion of the heat exchange tubes during the heat exchange process. The heat exchange tube components are divided into two types: bare tube heat exchange group and finned tube heat exchange group. The bare tube heat exchange group is made of 0Cr18Ni9 material. , not only to ensure the practicability of the material, but also to ensure the cooling effect. The finned tube heat exchange group adopts Q345R. The water inlet distribution plate adopts Q345R, and its main function is to distribute the circulating cooling water so that the flow of cooling water entering each heat exchange tube meets the process design requirements to ensure the heat exchange effect. The main function of the outer jacket of the cooler is to use the circulating cooling water in the jacket to cool down the barrel of...

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Abstract

The invention relates to the technique for cooling hot gas, particularly to a temperature reduction method for hot gas and a device thereof. At present, the method for reducing temperature by sprayingis used widely, which not only increase the composition of hot gas and the volume flow, but also increase the investment of system, with low heat exchange efficiency and difficulty to control the process. The invention comprises a tube bundle heat exchanger canister, an outer jacket of a tube bundle cooler, a light tube heat exchange unit, and a finned tube heat exchange unit. The light tube heatexchange unit and the finned tube heat exchange unit are orderly disposed inside of the tube bundle heat exchanger canister. The outer jacket of a tube bundle cooler is fixedly disposed on the outerwall of the tube bundle heat exchanger canister. The hot gas is cooled by air exchanging heat with recycled cooling water by entering the tube bundle heat exchanger. By adopting the tube bundle heat exchanger, with the outer jacket opening, the invention can efficiently decrease the temperature of the tube bundle heat exchanger, decrease the load of canister, reduce the thickness of the canister,and lower the investment.

Description

technical field [0001] The invention relates to a high-temperature gas cooling technology, in particular to a high-temperature waste gas cooling method and a device thereof. Background technique [0002] For the cooling process of high-temperature exhaust gas at 800-1300°C, the water spray cooling process is widely used. Its main structure is composed of the water spray cooling device cylinder, outer jacket, water spray pipe, nozzle and other components. When the high-temperature exhaust gas enters When in the water spray cooling device, the cooling water directly contacts the high-temperature exhaust gas through the nozzle in the water spray cooling device, and turns into water vapor while absorbing the heat of the high-temperature exhaust gas, and is discharged together with the high-temperature exhaust gas, thereby achieving the purpose of cooling the high-temperature exhaust gas. At the same time, the cooling water in the outer jacket cools down the water spray cooler cy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/00F28F9/00
Inventor 郭建全刘建锋赵仕哲杨鹏周晓庆
Owner 西安航天华威化工生物工程有限公司
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