CN111006196A - Boiler control system - Google Patents
Boiler control system Download PDFInfo
- Publication number
- CN111006196A CN111006196A CN201911249742.7A CN201911249742A CN111006196A CN 111006196 A CN111006196 A CN 111006196A CN 201911249742 A CN201911249742 A CN 201911249742A CN 111006196 A CN111006196 A CN 111006196A
- Authority
- CN
- China
- Prior art keywords
- unit
- boiler
- oxygen supply
- control system
- feeding
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Supply (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention discloses a boiler control system, which comprises a feeding unit and an oxygen supply unit, wherein the feeding unit and the oxygen supply unit are respectively connected with a terminal control unit; the feeding unit and the oxygen supply unit are connected with the temperature sensing unit. The feeding unit comprises a switch unit, a detection unit, a controller and an excavating unit; the detecting unit detects the material condition, and the controller starts the excavating unit according to the material detecting condition. The invention does not need the full-time watch of the operator, has saved the human cost.
Description
Technical Field
The invention belongs to the technical field of automatic control, and particularly relates to a boiler control system.
Background
The boiler is combustion equipment indispensable for industrial production and domestic heating, and releases energy by burning fuel; the domestic heat supply boiler is mainly used for heating in winter, the temperature difference between day and night is large in winter, the temperature at night is low generally, and the requirement on the heat supply temperature of the boiler is high. Existing boiler systems consume manpower.
Disclosure of Invention
The invention aims to provide a boiler control system which does not need full-time guarding of operators and saves labor cost.
The technical scheme adopted by the invention is that the boiler control system comprises a feeding unit and an oxygen supply unit which are respectively connected with a terminal control unit;
the feeding unit and the oxygen supply unit are connected with the temperature sensing unit.
The invention is also characterized in that:
the feeding unit comprises a switch unit, a detection unit, a controller and an excavating unit; the detecting unit detects the material condition, and the controller starts the excavating unit according to the material detecting condition.
The oxygen supply unit comprises a switch unit, a detection unit, a controller and an oxygen supply device; the detection unit detects the material oxygen deficiency condition, and the controller starts the oxygen supply device according to the material oxygen deficiency condition.
The detection unit of the feeding unit is arranged at the raw material terminal.
The detecting unit of the oxygen supply unit is arranged at the hearth at the combustion end of the boiler.
The invention has the beneficial effects that:
the boiler control system can start the oxygen supply unit or the feeding unit according to the data detected by the detection unit, so that the boiler is always in a combustion state; the full-time watching of operators is not needed, so that the labor cost is saved, and the working efficiency is improved.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The invention relates to a boiler control system, which comprises a feeding unit and an oxygen supply unit, wherein the feeding unit and the oxygen supply unit are respectively connected with a terminal control unit;
the feeding unit and the oxygen supply unit are connected with the temperature sensing unit.
The feeding unit comprises a switch unit, a detection unit, a controller and an excavating unit; the detecting unit detects the material condition, and the controller starts the excavating unit according to the material detecting condition.
The oxygen supply unit comprises a switch unit, a detection unit, a controller and an oxygen supply device; the detection unit detects the material oxygen deficiency condition, and the controller starts the oxygen supply device according to the material oxygen deficiency condition.
The detection unit of the feeding unit is arranged at the raw material terminal.
The detecting unit of the oxygen supply unit is arranged at the hearth at the combustion end of the boiler.
The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or organic carriers with certain heat energy.
The hot water or steam generated in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device, or the mechanical energy is converted into electric energy through a generator. The hot water provided is mainly used for life and has a small amount of application in industrial production. The generated steam is mainly used for thermal power stations, ships, locomotives and industrial and mining enterprises.
The boiler structure is divided into two parts of a boiler body, auxiliary equipment and a safety device. The main parts of the boiler, such as a hearth, a boiler barrel, a burner, a water wall, a superheater, an economizer, an air preheater, a framework, a boiler wall and the like, form a core part for producing steam and become a boiler body. The two most important parts in the boiler body are the furnace and the drum.
The hearth is a combustion chamber which is a space for fuel combustion. Putting solid fuel on a fire grate, and enabling a hearth for fire bed combustion to become a grate-fired furnace, also called a fire bed furnace; spraying liquid, gas or powdered solid fuel into a hearth of a firebox for combustion, wherein the hearth is called a chamber furnace; the hearth which is used for supporting coal particles by air to enable the coal particles to be burnt in a boiling state and is suitable for burning inferior fuel is called as a fluidized bed furnace; a cylindrical furnace in which coal particles are rotated at a high speed by an air flow and fired intensively is called a cyclone furnace. The auxiliary equipment and the safety equipment comprise a safety valve, a pressure gauge, a water level alarm and an fusible plug.
The working principle of the boiler is as follows:
the heat energy released after the fuel is burnt or the waste heat in industrial production is transferred to the water in the container to make the water reach the required temperature or steam with certain pressure. The boiler is operated at the same time in the two parts of boiler and boiler, after water enters the boiler, the heat absorbed by the heating surface of the boiler is transferred to the boiler in a steam-water system, so that the water is heated into hot water with certain temperature and pressure or generated steam, and the hot water or the generated steam is led out for application. In the combustion equipment part, fuel is combusted to continuously release heat, and high-temperature flue gas generated by combustion transfers the heat to a boiler heating surface through heat propagation. And the temperature of the flue gas is gradually reduced and finally the flue gas is discharged from a chimney.
The parameters of the boiler include boiler capacity, steam pressure, steam temperature, feedwater temperature, and the like. Boiler capacity may be expressed in terms of credit evaporation or maximum continuous evaporation. The rated evaporation capacity is the amount of steam produced continuously per unit time at a specified outlet pressure, temperature and efficiency. The maximum continuous evaporation capacity is the maximum steam quantity which can be continuously produced in unit time under the specified outlet pressure and temperature.
The steam comprises the steam pressure and temperature of the boiler, and generally refers to the superheated steam pressure and temperature at the outlet of a superheater and a reheater; without the superheater and reheater, i.e. the saturated steam pressure and temperature at the boiler outlet. The temperature is the water inlet temperature of the economizer, and the water inlet temperature of the boiler barrel is the water inlet temperature without the economizer.
In the aspect of a water vapor system, feed water is heated to a certain temperature in a heater, enters an economizer through a feed water pipeline, is further heated and then is sent into a boiler barrel, is mixed with boiler water and then descends to a water wall inlet header along a downcomer. Water absorbs the radiant heat of the hearth in the water wall pipe to form a steam-water mixture, the steam-water mixture reaches the drum through the ascending pipe, and the steam-water separation device separates the water from the steam. The separated saturated steam flows to the superheater from the upper part of the drum, continuously absorbs heat to form superheated steam with a certain temperature, and then the superheated steam is sent to the steam turbine.
The boiler control system can start the oxygen supply unit or the feeding unit according to the data detected by the detection unit, so that the boiler is always in a combustion state; the full-time watching of operators is not needed, so that the labor cost is saved, and the working efficiency is improved.
Claims (5)
1. A boiler control system, characterized by: comprises a feeding unit and an oxygen supply unit which are respectively connected with a terminal control unit;
and the feeding unit and the oxygen supply unit are connected with the temperature sensing unit.
2. The boiler control system of claim 1, wherein: the feeding unit comprises a switch unit, a detection unit, a controller and an excavating unit; the detecting unit detects the material condition, and the controller starts the excavating unit according to the material detecting condition.
3. The boiler control system of claim 2, wherein: the oxygen supply unit comprises a switch unit, a detection unit, a controller and an oxygen supply device; the detection unit detects the material oxygen deficiency condition, and the controller starts the oxygen supply device according to the material oxygen deficiency condition.
4. The boiler control system of claim 3, wherein: the detection unit of the feeding unit is arranged at the raw material terminal.
5. The boiler control system of claim 4, wherein: the detecting unit of the oxygen supply unit is arranged at a hearth at the combustion end of the boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911249742.7A CN111006196A (en) | 2019-12-09 | 2019-12-09 | Boiler control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911249742.7A CN111006196A (en) | 2019-12-09 | 2019-12-09 | Boiler control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111006196A true CN111006196A (en) | 2020-04-14 |
Family
ID=70115823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911249742.7A Pending CN111006196A (en) | 2019-12-09 | 2019-12-09 | Boiler control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111006196A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251485A (en) * | 2013-06-28 | 2014-12-31 | 青岛联合创新技术服务平台有限公司 | Boiler control system |
| CN104676626A (en) * | 2013-11-26 | 2015-06-03 | 青岛网媒软件有限公司 | Control system for boiler and control method thereof |
| CN104676640A (en) * | 2013-11-26 | 2015-06-03 | 青岛网媒软件有限公司 | Control system for boiler |
-
2019
- 2019-12-09 CN CN201911249742.7A patent/CN111006196A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251485A (en) * | 2013-06-28 | 2014-12-31 | 青岛联合创新技术服务平台有限公司 | Boiler control system |
| CN104676626A (en) * | 2013-11-26 | 2015-06-03 | 青岛网媒软件有限公司 | Control system for boiler and control method thereof |
| CN104676640A (en) * | 2013-11-26 | 2015-06-03 | 青岛网媒软件有限公司 | Control system for boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200414 |
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| RJ01 | Rejection of invention patent application after publication |