CN205593195U - High security boiler liquid level control system - Google Patents

High security boiler liquid level control system Download PDF

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Publication number
CN205593195U
CN205593195U CN201620208202.XU CN201620208202U CN205593195U CN 205593195 U CN205593195 U CN 205593195U CN 201620208202 U CN201620208202 U CN 201620208202U CN 205593195 U CN205593195 U CN 205593195U
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CN
China
Prior art keywords
liquid level
boiler
input
high security
control system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620208202.XU
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Chinese (zh)
Inventor
李俊红
杨奕
李晨
凌舟鹏
罗松
张怡秋
胡世梅
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Nantong University
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Nantong University
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Priority to CN201620208202.XU priority Critical patent/CN205593195U/en
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Publication of CN205593195U publication Critical patent/CN205593195U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a high security boiler liquid level control system, including and carrying out measuring liquid level measurement transducing unit to boiler liquid level, the liquid level measurement transducing unit is connected with the system input end, and the system input termination has an input auto -change over device, input auto -change over device and control the water inlet control valve that the boiler intake and be connected, input auto -change over device comprises with fuzzy controller is parallelly connected the PID controller. The utility model discloses it is rational in infrastructure, use fuzzy control when the pressure oscillation is great to accelerate response speed, adopt PID to keep the scheme of static accuracy when pressure range is less, carry out more reasonable, accurate regulation to the inflow of boiler, reduce the steam pocket liquid level, and then improve boiler security in process of production.

Description

High security boiler liquid level control system
Technical field
This utility model relates to a kind of boiler liquid level control system.
Background technology
In modern industry production process, along with multifarious, the severization to product quality of production process, boiler liquid level control system needs more preferably dynamic property and steady-state behaviour.For boiler liquid level problem, liquid level likely can cause short circuit, blast etc. higher than setting value, and liquid level does not the most likely realize cooling effect or insufficient water less than limit value.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, the inflow of boiler is carried out rationally, is regulated accurately, reduces the high security boiler liquid level control system of liquid level of steam drum.
Technical solution of the present utility model is:
A kind of high security boiler liquid level control system, it is characterized in that: include the level gauging transducing unit that boiler liquid level is measured, level gauging transducing unit is connected with system input, system input is connected to input switching device, and input switching device is connected with the water inlet control valve controlling boiler feed water;Described input switching device is composed in parallel with fuzzy controller by PID controller.
This utility model is rational in infrastructure, uses fuzzy control when pressure oscillation is bigger, to accelerate response speed;Use when pressure limit is less PID to keep the scheme of static accuracy, the inflow of boiler is carried out the most rationally, regulates accurately, reduce liquid level of steam drum, and then improve boiler safety in process of production.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of one embodiment of this utility model.
Detailed description of the invention
A kind of high security boiler liquid level control system, including the level gauging transducing unit 1 that boiler liquid level is measured, level gauging transducing unit is connected with system input, and system input is connected to input switching device, and input switching device is connected with the water inlet control valve 2 controlling boiler feed water;Described input switching device is composed in parallel with fuzzy controller 4 by PID controller 3.
Level gauging transducing unit measures boiler liquid level in real time, and measured value is fed back to system input, real-time measurement values is inputted switching device, switching device compares with input quantity according to system " switching value " set in advance, and then determine selection PID controller or fuzzy controller, then control water inlet control valve, regulate and control inflow.

Claims (1)

1. a high security boiler liquid level control system, it is characterized in that: include the level gauging transducing unit that boiler liquid level is measured, level gauging transducing unit is connected with system input, system input is connected to input switching device, and input switching device is connected with the water inlet control valve controlling boiler feed water;Described input switching device is composed in parallel with fuzzy controller by PID controller.
CN201620208202.XU 2016-03-18 2016-03-18 High security boiler liquid level control system Expired - Fee Related CN205593195U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620208202.XU CN205593195U (en) 2016-03-18 2016-03-18 High security boiler liquid level control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620208202.XU CN205593195U (en) 2016-03-18 2016-03-18 High security boiler liquid level control system

Publications (1)

Publication Number Publication Date
CN205593195U true CN205593195U (en) 2016-09-21

Family

ID=56928837

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620208202.XU Expired - Fee Related CN205593195U (en) 2016-03-18 2016-03-18 High security boiler liquid level control system

Country Status (1)

Country Link
CN (1) CN205593195U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107272526A (en) * 2017-08-17 2017-10-20 宝鸡文理学院 A kind of fuzzy controller for industrial boiler
CN111290264A (en) * 2020-03-31 2020-06-16 五邑大学 PID control method and device of laundry detergent spraying robot
CN113359880A (en) * 2021-05-21 2021-09-07 广东科学技术职业学院 Control method for constant water level filtration of V-shaped filter tank, computer device and computer readable storage medium
CN114483237A (en) * 2022-01-20 2022-05-13 重庆江增船舶重工有限公司 Liquid level balance control system and method for evaporator of organic working medium distributed energy supply system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107272526A (en) * 2017-08-17 2017-10-20 宝鸡文理学院 A kind of fuzzy controller for industrial boiler
CN111290264A (en) * 2020-03-31 2020-06-16 五邑大学 PID control method and device of laundry detergent spraying robot
CN113359880A (en) * 2021-05-21 2021-09-07 广东科学技术职业学院 Control method for constant water level filtration of V-shaped filter tank, computer device and computer readable storage medium
CN114483237A (en) * 2022-01-20 2022-05-13 重庆江增船舶重工有限公司 Liquid level balance control system and method for evaporator of organic working medium distributed energy supply system
CN114483237B (en) * 2022-01-20 2024-03-12 重庆江增船舶重工有限公司 Liquid level balance control system and method for evaporator of organic working medium distributed energy supply system

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160921

Termination date: 20170318

CF01 Termination of patent right due to non-payment of annual fee