Automatic control high temperature waste heat recovery system used in process of preparing acid by sulphur

A waste heat recovery system and a technology for sulfuric acid production, which are applied in the fields of chemical industry, energy saving, and environmental protection, can solve the problems of boiler equipment design without a matching automatic control system, the safety of waste heat boiler system not being guaranteed, and the inability to meet the large-scale sulfuric acid production process. To achieve the effect of long equipment life cycle, high reliability and reliability assurance

Inactive Publication Date: 2012-05-09
中江能源回收(上海)有限公司
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Problems solved by technology

[0002] In the previous sulfur acid waste heat recovery system, the design, manufacture and supply of boile

Method used

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  • Automatic control high temperature waste heat recovery system used in process of preparing acid by sulphur
  • Automatic control high temperature waste heat recovery system used in process of preparing acid by sulphur

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] see figure 1 , In the acid plant with sulfur as raw material, there is a large amount of high and medium temperature waste heat and low temperature waste heat that can be recovered. This system discusses the recovery system that releases high- and medium-temperature potential heat from sulfur burning and conversion processes.

[0019] The fire tube boiler is installed at the outlet of the sulfur incinerator to recover the high-temperature waste heat generated by the incineration of liquid sulfur in the sulfur incinerator to cool the furnace gas from 1100°C to about 420°C. The heat of the furnace gas is absorbed by the boiler water to generate saturated steam.

[0020] The low-temperature superheater 4A is installed at the outlet of the fourth stage of the converter to recover the medium-temperature waste heat generated during the conversion of sulfur dioxide into su...

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Abstract

The invention relates to the fields of chemical industry, energy saving and environment protection, in particular to an automatic control high temperature waste heat recovery system used in the process of preparing acid by sulphur. The automatic control high temperature waste heat recovery system used in the process of preparing the acid by the sulphur comprises a fire tube boiler, a fire tube boiler steam drum, an economizer 4A, an economizer 3B, an economizer 4C, a low temperature superheater 4A, a high temperature superheater 1B and a connecting pipeline valve for forming the system. Compared with the prior art, the automatic control is adopted and the automatic control high temperature waste heat recovery system used in the process of preparing the acid by the sulphur has high technical requirements on both the arrangement among recovery equipment and the reasonableness of forming the system, is more suitable for the requirements for recovering waste heat generated by a device for preparing the acid by the sulphur in a large scale, has the advantages of investment saving, high heat recovery efficiency, long using period of equipment and capacity of adapting to the requirement of a chemical process device on continuous operation for years, is matched with an automatic control system and has high safety and reliability.

Description

technical field [0001] The invention relates to the fields of chemical industry, energy saving and environmental protection, in particular to an automatic control system for recovering high-temperature waste heat in sulfuric acid production. Background technique [0002] In the previous sulfur acid waste heat recovery system, the design, manufacture and supply of boiler equipment were all single without supporting automatic control system. System security is not guaranteed. Contents of the invention [0003] The purpose of the present invention is to change the disintegration of the traditional sulfur acid production system, and adopt automatic control and arrangement connection among recovery equipment. [0004] In order to achieve the above purpose, an automatic control high temperature waste heat recovery system for sulfuric acid production is designed, including fire tube boiler, fire tube boiler steam drum, economizer 4A, economizer 3B, economizer 4C, low temperature...

Claims

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Application Information

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IPC IPC(8): F22B1/18F22B31/08F22B37/00F23G7/04
CPCY02P20/10
Inventor 王渭清达筱云朱美昌刘纪状
Owner 中江能源回收(上海)有限公司
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