US4362269A - Control system a boiler method
HOT
Capacity:1-20t/h
Rated thermal efficiency: 100-104%
Fixed working pressure: ≤1.6MPa
Applicable fuel:natural gas etc.
HOT
Capacity:0.7-14MW
Rated thermal efficiency:96-98%
Fixed working pressure:≤1.25MPa
Applicable fuel:Natural gas, light oil, etc.
HOT
Capacity:0.7-2.8Mw
Rated thermal efficiency: 97.2-106%
Fixed working pressure:0.1MPa
Applicable fuel:Natural gas, etc.
HOT
Capacity:2.8-7.0Mw
Rated thermal efficiency:≥105.5%
Fixed working pressure:-0.02MPa
Applicable fuel:Natural gas, etc.
HOT
Capacity:99Kw
Rated thermal efficiency:97.2-104.4%
Fixed working pressure:1.0MPa
Applicable fuel:Natural gas, etc.
HOT
Capacity:0.5-4.0 t/h
Rated thermal efficiency:98%
Fixed working pressure:≤1.25MPa
Applicable fuel:electric energy
US6536678B2 US09/739,085 US73908500A US6536678B2 US 6536678 B2 US6536678 B2 US 6536678B2 US 73908500 A US73908500 A US 73908500A US 6536678 B2 US6536678 B2 US 6536678B2 AuthorityGet Price
Find steam boiler control system manufacturers on Exporthub.com. Buy products from suppliers around the world and increase your sales.Get Price
By installing an automatic TDS control system the average boiler water TDS can be maintained at a level almost equal to the maximum allowable TDS as shown in Figure 3.12.9; Evaluating savings by reducing blowdown rate. If a boiler is to supply a given amount of steam, the water blown down must be in addition to this amount.Get Price
Aug 19, 2019 · Boilers can be designed to burn a specific fuel, using any number of different technologies, but the main component to consider here is the heat source, or otherwise known as the fuel. The fuel is one of the most important aspects of a boiler and is what burns inside the boiler to generate the heat.Get Price
Shuts off the burner system Opens the boiler feedwater control valve. Shuts off the burner system. Solid fuels: bathroom fans, dryers, and other building air exhausts, can be made by two different methods. Method X will have a first cost of $75,000, an operating cost of$32,000 per year, and a $9000 salvage value after 4 years. Method Y will Get Price
The proposed method has been applied to a simulated aircraft control system and the simulation results confirm the effectiveness of the proposed fault …Get Price
BOILER INSTALLATION GUIDE - MemberClicksGet Price
Sep 02, 2013 · A three element control system corrects the problems associated with a two element control system and provides the best method of compensating for variable loads. 4.5 MULTIPLE BOILERS. The output of multiple boilers is accomplished by routing the steam from each individual boiler into a common plant output header.Get Price
Automatic Level Control Systems | Spirax SarcoGet Price
A boiler control system for boilers fired by solid fuels wherein the fuels are carried through the combustion zone of the boiler on a traveling grate and wherein the air flow for combustion as supplied to the undergrate region utilizes a control of the fuel rate from a deviation of the outlet pressure from the desired value with the control of the air flow to the undergrate region …Get Price
A method of controlling operation of a particulate fuel burning boiler, such as a coal fired boiler, having a plurality of burners each receiving pulverized coal, primary air and secondary air. The flow rate of the pulverized coal, primary air and secondary air is determined independently for each burner and is compared with a model. In the event that the comparison results in a …Get Price
Control system for a boiler and method therefor . United States Patent 4362269 . Abstract: A method and system for controlling the combustion of, for example, coal or bark in a stoker boiler or black, liquor in a recovery boiler to provide operation at maximum efficiency. Control loops are provided for primary or undergrate air and secondary or Get Price
292 Chapter 14 Stack—an opening at the top of the boiler that is used to remove flue gas, p. 297. Steam drum—the top drum of a boiler where all of the generated steam is collected before entering the distribution system, p. 293. Steam trap—a device used to remove condensate or liquid from steam systems, p. 294. Superheated steam—steam that has been heated to a very …Get Price
ISB systems are proven tools for increasing efficiency and maximizing unit output. Performance-based ISB systems, in particular, provide a cost-effective method of achieving unit cleanliness and performance by optimizing boiler heating surfaces while helping to reduce costs related to fuel usage, maintenance, sootblowing medium management, and tube failures from sootblower …Get Price
A method for operating a boiler including sensing a demand for heat and generating and ignition request to a flame safety controller. An ordered succession of evaluation modes compares normal operation to actual operation of control devices through the step of controlled ignition and transitions to a failure mode if an evaluation mode is not successfully completed.Get Price
CN101576739A Method for intelligent automatic control of energy-saving operation of coal-fired industrial boiler 11/11/2009 CN101576248A Steam …Get Price
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@article{osti_6308938, title = {Turbine control system for sliding or constant pressure boilers}, author = {Callan, P C and Eggenberger, M A}, abstractNote = {An automatic control system enabling comprehensive operation of a reheat steam turbine with sliding or constant pressure boilers is described. The control system includes an HP control valve for regulating steam flow …Get Price
Implement Boiler Lockout Control Sequence. Including boiler lockout in the HVAC system's sequence of operation is important in achieving energy efficiency. With the common application of VAV systems in commercial buildings today, simultaneous heating and cooling, and excessive reheating of primary air can often go unnoticed.Get Price
A method for operating a boiler including sensing a demand for heat and generating and ignition request to a flame safety controller. An ordered succession of evaluation modes compares normal operation to actual operation of control devices through the step of controlled ignition and transitions to a failure mode if an evaluation mode is not successfully completed.Get Price
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Objective: For stable and efficient control of the heating boilers in power plants, an improved Smith-fuzzy PID algorithm is used to optimize the computer control system for heating boilers. Methods: Under the computer control system, the pressure, exhaust gas temperature, water temperature, safety, and energy consumption of heating boilers are explored, thereby …Get Price
Sep 07, 2021 · In the following, the multivariable control system of the model reference based on the proposed recurrent type-2 fuzzy RBFN is presented, and then, the rules of updating the neural network are presented. Finally, by simulating a real power plant boiler, the proposed control method is evaluated. 2.Get Price
fed to the boiler should be controlled tofed to the boiler should be controlled to give the necessary quantity of steam. the steam demand increase or decrease will be indicated by the boiler outlet pressureindicated by the boiler outlet pressure. hence combustion control is essentially a control to keep the boiler outlet pressureGet Price
A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops.It can range from a single home heating controller using a thermostat controlling a domestic boiler to large industrial control systems which are used for controlling processes or machines.. For continuously modulated control, a feedback controller …Get Price
4. Combustion control for boilers A combustion control system is broken down into : (a) fuel control (b) combustion air control 8. 4. Combustion control for boilers There are three general types of combustion control schemes used today: (a) series, (b) parallel, & (c) series-parallel controls. 9. 4(A).Get Price
Automatic Level Control Systems | Spirax SarcoGet Price
High TDS results in plant and production problems. Low TDS results in increased fuel and chemical treatment costs. Accurate blowdown methods are essential to maintain your steam quality, contact our engineers for advice on the best methods for your business. Spirax Sarco Boiler Controls Range BCR3250 Boiler Control BCR3150 Boiler Control Get Price
WO2012011886A1 Industrial power boiler, operating method and control system : 01/25/2012: CN202125936U Boiler water lever and pressure control system : 01/25/2012: CN202125935U Energy-saving Get Price
COMPENSATION METHOD IN BOILER DRUM LEVEL MEASUREMENT AND CONTROL Sundarasekaran D1, Dr.Gomathy C2 1Research Scholar, Sathyabama University, 2Electronics & Control dept., Sathyabama University. E-Mail: [email protected] Abstract The Industrial Boiler Drum Level control loop is to maintain the drum level within the prescribed limit.Get Price
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