Novel crude oil normal-pressure tower top oil-gas heat exchanger

A technology of atmospheric tower and heat exchanger, applied in petroleum, cold exchange equipment and chemical industry, can solve problems such as cost and process difficulty, and achieve the effect of improving corrosion resistance, reducing environmental pollution and reducing industrial use cost.
CN103673693AInactive Publication Date: 2014-03-26SHANDONG LANXING WASHING & ANTI CORROSION
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANDONG LANXING WASHING & ANTI CORROSION
Publication Date
2014-03-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a novel crude oil normal-pressure tower top oil-gas heat exchanger. A cover plate part of a floating head of the heat exchanger is in a groove shape, the structure can increase the depth of an arc so that sufficient baffling space can be provided when media in a tube pass reverse on the floating head, and the tube pass media can circulate smoothly; sealing match of trapezoid grooves is adopted for a floating tube plate and a floating flange and hook-ring matched faces, so that the sealing effect between the floating head tube plate and the floating head flange and hook rings is improved, and the problems that the tube pass media and shell pass media leak or seep or mix mutually to increase complexity of the corrosion environment, lead to corrosion and leakage and cause pollution to the environment can be effectively avoided; due to the arrangement of an LX-03 anticorrosive coating structure, corrosion resistance and scouring resistance of the heat exchanger are greatly improved, service life of the heat exchanger is effectively prolonged, industrial usage cost of the heat exchanger is reduced, economic losses caused by maintenance and replacement are reduced substantially, production efficiency is improved, and environmental pollution caused by leakage of the heat exchanger is reduced further.
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Description

technical field

[0001] The invention relates to the fields of petroleum and chemical industry, in particular to a structure of a heat exchanger for heat-exchanging crude oil-atmospheric tower top oil-gas mixture in an atmospheric and vacuum device of an oil refinery, and belongs to the technical field of cold exchange equipment. Background technique

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid to achieve heat energy transfer between fluids at different temperatures, also known as a heat exchanger. Heat exchanger is an indispensable equipment to realize heat exchange and transfer in chemical production process. In a heat exchanger, there are at least two fluids at different temperatures. One fluid is at a higher temperature and emits heat; the other fluid is at a lower temperature and absorbs heat. In engineering practice, there are sometimes more than two fluids participating in heat exchange, but its basic principle i...

Claims

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