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Optimal control system and method for variable-load economical operation of boiler

A technology of load optimization and economical operation, applied in the direction of control system, control of combustion, lighting and heating equipment, etc., can solve the problems of deviation from economic load area and high energy consumption of boilers

Inactive Publication Date: 2016-06-29
HONGYUN HONGHE TOBACCO (GRP) CO LTD
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an optimized control system and method for economical operation of boilers with variable loads, so as to solve the problem that most of the boilers operate in areas deviated from economical loads in actual operation, resulting in high energy consumption of boilers

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  • Optimal control system and method for variable-load economical operation of boiler
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  • Optimal control system and method for variable-load economical operation of boiler

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Embodiment 1

[0018] Aiming at the problem that the actual operation of the boiler deviates from the operation in the economical load area, resulting in high energy consumption, a boiler variable load economical operation optimization control system and method are proposed. The specific implementation methods are as follows:

[0019] Step 1: Monitor the supply of boiler fuel through the fuel supply monitoring subsystem, including the monitoring of coal calorific value and coal flow, and collect the monitoring data at the same time.

[0020] Step 2: Based on the data collected in step 1, process it through the fuel and load optimization distribution subsystem. First, analyze it through the boiler performance and state analysis module. Take a boiler with a rated load of 35t / h, a boiler thermal efficiency of 85%, and an economical Taking a boiler with an operating load of 101.9t / h as an example, the specific analysis process is as follows: data is collected through the fuel supply monitoring sy...

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Abstract

The invention discloses an optimal control system and method for variable-load economical operation of a boiler. The optimal control system comprises a fuel supply monitoring system, a fuel and load optimal distributing system and an auxiliary engine operation parameter setting system. The fuel supply monitoring system is composed of a coal heat value monitoring module and a coal flow monitoring module. The fuel and load optimal distributing system is composed of a boiler performance and state analysis module, a boiler operation curve fitting module, a fuel and load optimal distributing model module and a fuel and load optimal distributing scheme module. The auxiliary engine operation parameter setting system is composed of an induced draught system parameter setting module, an air supply system parameter setting module and a water system parameter setting module. The optimal control system for variable-load economical operation of the boiler can solve the problems that when existing boilers actually operate, most of the boilers operate deviating from an economical load area, and therefore the energy consumption of the boilers is high.

Description

technical field [0001] The invention belongs to the technical field of boiler energy saving, and in particular relates to an optimization control system and method for variable load economical operation of a boiler. Background technique [0002] In industrial enterprises, boilers use coal as the main fuel to produce steam. At the same time, due to the large number and wide distribution of industrial boilers, coal consumption accounts for a quarter of the country's total coal output each year. In general, industrial boiler rooms are operated by multiple boilers at the same time. . However, due to the different characteristics such as capacity and efficiency of each boiler, when the same boiler works under different load conditions, its thermal efficiency is also different. Therefore, in order to save energy, it is very important to optimize the load distribution of boilers operating in parallel according to the different characteristics of the boilers. This requires that the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B35/00F23N5/00
CPCF22B35/008F23N5/00
Inventor 张竑斌高宏宇黄晓华戴银波陈烨杨欢郭重耘沈丁洋
Owner HONGYUN HONGHE TOBACCO (GRP) CO LTD
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