Energy Saving Coal Fired Steam Boiler
Single Drum/water fire tube/whole factory
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Features
• Installation simple/Full boiler power/long service life/Low failure rate
• The first choice for small and medium enterprises
• Rated Steam Capacity:1t/h-20t/h(955HP-19,100HP)
• Rated Work Pressure：7bar-16bar(100psi-233psi)
• Core Control Mode：PLC control,PLC+PC control
Promise
Introduction
System
Reviews
Introduction of the energy saving coal fired steam boilers
Overview of the DZL Series Coal Fired Steam Boiler
The DZL series coal fired steam boiler is a water-fire tube shell boiler with a design of upright furnace, two-wing flue, smoke three-pass, threaded smoke tube.The threaded smoke tube is with unique heat transfer technology.The boiler drum and the water-cooled walls on both sides form the radiant heating surface of the furnace. Combustion equipment adopts light chain grate;Electrical control realizes step-less speed regulation of grate, limit parameter alarm and interlock protection.
The furnace has a compact structure,scientific construction technology, fine workmanship,high technical maturity, stable operation,less foundation investment,mechanized coal addition and slag discharge; sufficient boiler power and high efficiency. It is an important choice for medium and small industrial and mining enterprises to use steam for production and people's daily life for heating, and is widely recognized by users.
Coal Fired Steam Boiler Parameter
Coal Fired Steam Boiler Parameter
Boiler Control System
·Combustion system
·Steam water system
·Control system
·Combustion system of coal fired steam boiler
The coal-fired steam boiler combustion system according to the fuel characteristics of the boiler, steam capacity, equipped with combustion system equipment, Which can realize automatic combustion, automatic slag removal function. The combustion system equipment consists of coal feeder, chain grate, air distribution equipment, coal hopper in front of furnace,grate speed reducer slag removal equipment, etc.·Steam water system of coal fired steam boiler
The steam water system consists of feedwater part and steam part.
Feedwater part: Feedwater refers to the water that is provided to the boiler for steam conversion. The feedwater channels water into the boiler and automatically controls it to satisfy steam requirements.
Steam part: the steam is the part of the boiler responsible for collecting and regulating the steam generated by the boiler. Valves and pressure gauge controls are used to monitor and regulate steam pressure.
The steam and water system should be composed of boiler main body, rear heating surface(such as economizer, condenser and so on which are equipped according to actual situation of user),water treatment device, feedwater pump, steam header, deaerataor and so on.
·Control system of coal fired steam boiler
Boiler control system is a collection of boiler electrical control components,a center for collecting and processing boiler operating signals,and an operation platform for sending execution instructions to each execution unit of the boiler.
If you want the boiler system to realize the IoT(Internet of Things) service for boiler system, we can provide you with this service when designing the control system.
The IoT system for boiler system adopts a layered structure design, namely data collection layer(M BOX), cloud platform(M SERVICE), and application layer(MYZT application system).
The control system of DZL series coal fired steam boiler provides the control of boiler water level, pressure, burning, safety protection and so on.
Control principle: Through the real-time data collection, monitoring and processing of boiler water level, pressure, flue temperature and burner,the purpose of intelligent and safe operation is achieved.
★ The Core Control Mode of the steam boiler system: MCU control(Microcontroller unit), Integrated controller (All-in-one PLC, not programmable), PLC control(programmable), PLC+PC control, DCS control.
★ Standard Control Content: boiler water level, steam pressure control, alarm and interlock, and set up an automatic control system for combustion start and stop.
★ Steam Boiler Control Modes of Operation: Automatic and Manual
a) The boiler in automatic mode is in fully automatic operation state,
b) Manual mode:The operation of the boiler equipment is controlled by manual operation. Under normal circumstances,the boiler should operate in the automatic operation state.In special cases,it will be required to switch to the manual state.
★ Control system detection data sources: temperature sensors,pressure transmitters, pressure controllers, liquid level gauges, flow meters, electric control valves, and other remote instrument valves.
Control cabinet kinds for coal fired steam boilers: wall-mounted control cabinet, podium control cabinet, MCC vertical control cabinet, piano-style control cabinet, positive pressure explosion-proof control cabinets, and three-proof control cabinet. likes follow:
Features
• Indication of operating status, with start/stop button
• Feed water pump interlock
• Scheduled startup of operation
• Display of numbers of ignition and combustion
• High temperature /high pressure/ low pressure/ antifreeze/ burner stop alarm functions
• Display of malfunctions
• Self-interlock during power down for protection
• Date/information collection, analysis,and storage function
• Password protection of controller
• Modbus RS485 interface,connection to upper control system or DCS system of the plant from multiple boilers
Company Profile
CN BOILER ENGINEERING SOLUTION LLC is a comprehensive service provider of thermal energy systems in China, devotes to providing for customer one-step thermal energy system solutions by safety, save energy, environmental,intelligent and reliable. Main products include industrial boilers(hot water boilers, steam boilers, thermal oil boilers, waste heat boilers and CFB boilers), steam generator(electric steam generator, electric hot water generator), intelligent control system by PLC control, PLC+PC control or DCS control, remote instrument and valves and so on.The control system includes industrial boiler control system(oil fired boilers, gas fired boilers, biomass fired boilers, coal fired boilers, electric boilers, waster heat boilers, CFB boilers), PLC deaerator control system, condensate recovery system, reactor control system, heating exchanger control system, hot air boiler control system etc.
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