Question details (Performance) :
1. The vibrating coal grate stops running totally or intermittently.
2. The current of vibrating coal grate motor rises abnormally.
3. The safety clutch of transmission machine of grate or safety pin is broken.
Answer: cause of the problem:
Boiler’s vibrating coal grate is a rotating combustion equipment, due to the bad working conditions, stuck stalling is easily happened and grate failure happens in daily application and ...
An Interlock in the boiler’s control system is a programmed or hardwired condition that forces a device to be in a pre-determined or permissive state before the process can continue.
Depending on design pressure, fuel type, either liquid, gas or solid, all steam boiler require interlocks to sequence the operation and to prevent damage to the boiler. Examples of such devices are High or Low Boiler Drum Water Level, Low Boiler Feed Pump Pressure, High or Low Fuel pressure, High or Low Atomization pressure (oil fired), Proof of Ignition, Proof of Flame, FD and/or ID (solid fuel) Fan Motor Operation or combustion air pressure, Damper or Valve position and High Boiler Steam Pressure as well as O2 and furnace temperature.
The working pressure of the boiler system should be economical and reasonable. Steam conveying system is an important connection between steam source and steam equipment. Steam distribution system must provide correct flow rate and correct pressure with less heat loss and less cost. In this paper, ZOZEN Boiler will explain how to determine the working pressure of the boiler system.
Theoretically, the working pressure of the boiler system depends on the highest pressure required by the s...
Boilers are special equipment, so special attention should be paid to daily maintenance during daily use. Boiler operators must strictly follow the boiler maintenance manual for boiler maintenance. So what are the regular works in boiler operation?
Only by knowing what the routine work in boiler operation is, can we do well in boiler operation management and realize safe and economical operation. Therefore, in the daily use of the boiler, it is necessary to do a good job of inspection, ...
100-ton gas-fired hot water boiler refers to the gas-fired hot water boiler with rated heat supply of 70MW. 100-ton gas-fired hot water boiler is a large boiler, which is often used for central heating in cities or park heating. So what are the performance parameters of 100t gas-fired hot water boiler?
Performance parameter of ZOZEN 100-ton gas-fired hot water boiler
Model
SZS70-1.6/130/70-Q
Rated evaporation t/h
100
Rated working pressure Mpa
1.6
Wate...
Advantages:Chain grate is a kind of better combustion equipment in layer combustion furnace. Compared with gas-fired boilers on the market, the solid fuel used in chain grate boiler does not need pipeline laying, and the cost is relatively low. Moreover, the chain grate boiler system is simple, and the manufacturing cost and operating cost are relatively low.
Disadvantages:The chain grate boiler has a limit on the coal types. The combustion mode of the chain grate is moving hearth combusti...
The boiler economizer is a device installed at the lower part of the flue at the tail of the boiler to recover the waste heat of the exhaust gas. It absorbs the heat of the high-temperature flue gas to heat the boiler feed water, reduces the temperature of the exhaust gas of the boiler, saves energy and improves the thermal efficiency of the boiler. Therefore, when using boilers, it is very important to master the correct treatment method of boiler economizer tube burst.
It depends on the system of the gas boiler, the boiler water temperature at 60-90, 90-150 and 70-130 can achieve better energy-saving effect.
Energy-saving devices such as condensers are added to ZOZEN gas-fired hot water boiler. The waste heat is used to increase the water temperature of the gas-fired boiler. The rated inlet temperature is 70℃, and the exhaust gas temperature is reduced, so that the thermal efficiency of the boiler is increased to over 98%.
