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Energy saving and temperature reducing technique for gaseous phase materials susceptible to plugging

A gas-phase material and heat exchanger technology, applied in the field of heat transfer equipment, energy-saving and cooling heat exchange equipment, to achieve the effect of strengthening heat transfer effect, reducing consumption and avoiding blockage

Active Publication Date: 2013-06-12
北京先锋创新科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an energy-saving and cooling technology for gas-phase materials that are easy to block, specifically including two new types of energy-saving and cooling equipment, which can further improve heat transfer efficiency and strengthen Heat transfer effect, improve flow state, and effectively solve the problem of blockage

Method used

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  • Energy saving and temperature reducing technique for gaseous phase materials susceptible to plugging
  • Energy saving and temperature reducing technique for gaseous phase materials susceptible to plugging
  • Energy saving and temperature reducing technique for gaseous phase materials susceptible to plugging

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Embodiment 1

[0023] Embodiment 1: use the shell-and-tube heat exchanger with pusher in the present invention to lower the temperature of coke oven gas. In addition to hydrogen and methane, coke oven gas also contains coke and coal tar with a mass fraction of about 10%. The coke oven gas enters the heat exchange tube with a pusher from the material inlet pipe, and releases heat to the cooling water sprayed by the water spray device. As the temperature decreases, the coke and coal tar in the coke oven gas will continue to adhere On the inner wall of the heat exchange tube, it is pushed out by the rotating pusher. The mass fraction of coke and coal tar in the coke oven gas discharged from the material outlet pipe is only 0.1%, thereby achieving the purpose of removing coke and coal tar in the coke oven gas.

Embodiment 2

[0024] Embodiment 2: The reaction product of acetic acid and acetylene is lowered in temperature with a tower heat exchanger among the present invention. The high-temperature reaction product enters from the bottom of the tower with a flow rate of 36000Kg / h, wherein acetylene accounts for 45% (mass fraction, the same below), acetic acid accounts for 27%, vinyl acetate accounts for 26%, and carbon powder accounts for 2%. Countercurrent contact in the tower, the temperature of the gas gradually decreases during the rising process, so a large amount of reaction products and unreacted acetic acid will condense down into the liquid, and the liquid flow rate will continue to increase, 98% acetic acid and 99% vinyl acetate in the feed And almost all the carbon powder is pumped out after the settling tank and enters the separation section behind. 99% of the acetylene in the feed is discharged from the top of the tower after being cooled. The tower heat exchanger not only absorbs the ...

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Abstract

The invention discloses an energy saving and temperature reducing technique for gaseous phase materials susceptible to plugging, relating to heat transmission equipment in industrial processes, and belonging to the field of gas-liquid heat transmission equipment. Particularly, the device is a tower-type heat exchanger, and anti-plugging trays are used inside a tower and divides the tower into 2-3 segments, thereby effectively reducing energy consumption while ensuring the temperature of a gas outlet. The invention can be used for heat-transfer processes in chemical industry, petrifaction industry, light industry, metallurgy industry and the like, and the two devices have the characteristics of good anti-block character, obvious economic benefit and the like.

Description

technical field [0001] The invention relates to heat transfer equipment for industrial processes such as chemical industry, petroleum, light industry, metallurgy, etc., and specifically relates to heat exchange equipment for energy saving and cooling, and belongs to the field of gas-liquid heat transfer devices. Background technique [0002] In industry, ordinary shell-and-tube heat exchangers are usually used for cooling such materials as flue gas, coke oven gas, or gas products after the reaction of certain substances (such as the reaction product of acetic acid and acetylene), but due to these materials Generally, the viscosity is relatively high and often contains solid particles, so its flow resistance in the heat exchange tube is very large and it is easy to foul on the wall surface, which will often block the ordinary shell-and-tube heat exchanger. Therefore, the heat exchanger needs to be cleaned frequently, thus increasing the maintenance time of the factory. Cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D3/02F28F19/00F28F5/06F28C3/06B01D47/06
CPCY02P20/10
Inventor 王宝华
Owner 北京先锋创新科技发展有限公司