Method for retrieving and using technical remaining heat in petroleum refining process

A technology of petroleum refining and waste heat, which is applied in household heating, heating methods, lighting and heating equipment, etc., and can solve the problem of heat recovery in hot water networks - low utilization rate, complex heat consumption by heat sink users, and insufficient network flexibility, etc. problems, to achieve the effect of improving hot water energy utilization process, improving flexibility and operability, and optimizing hot water energy utilization
CN100480587CInactive Publication Date: 2009-04-22SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2009-04-22
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

This invention relates to a method for recovering and utilizing waste heat in oil refining including: 1, a high temperature hot water system recovers waste heat of all high temperature level and part of low temperature level and a low temperature hot water system recovers residual low temperature waste heat at a source part, 2, a heat trap part is divided into a stable part and an unstable part, the stable trap is taken as the main part of the high temperature hot water system and the unstable one is taken as the main part of the low temperature hot water system, 3, hot water is cooled to a stipulated temperature by a cooling system then sent to the source part to collect heat before returning to the source part.
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Description

technical field

[0001] The invention relates to the field of waste heat recovery in the oil refining industry, in particular to a method for recovering and utilizing process waste heat by using a multiple hot water system in oil refining. Background technique

[0002] In my country's process industry, the oil refining industry occupies an extremely important position. The products of the oil refining industry are essential raw materials for various industries of the national economy, national defense modernization and people's lives. The characteristic of the oil refining industry is to separate different components in the oil through thermal energy drive. Therefore, a large amount of low-temperature process waste heat is generated in the production process of the oil refinery unit. If these process waste heat can be used reasonably and efficiently, the energy of the oil refining industry will be improved. consumption is further reduced. However, the low-temperature waste h...

Claims

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