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.
Here, we'll address four of the key mechanical benefits that serpentine coil heaters have to offer.
1. Coil Replacement
Coil replacement in serpentine industrial coil heaters is notably easier than that in helical coil heaters. With serpentine coil thermal oil heaters, you can replace one tube at a time instead of replacing the entire coil. This can save you thousands of dollars on the cost of purchasing a new helical coil in its entirety. Because the coil replacement can be taken care of quickly, you'll also save hundreds of thousands of dollars by avoiding excess facility downtime.
The boiler manhole-lids are mounted from the inside of the boiler so that the boiler pressure will help to keep them tight. Hence the manholes have to be elliptical in shape to make it possible to take the lid out from the boiler.
The circulating pressure of a thermal oil boiler is generated by the driving of the circulating oil pump to the thermal oil circulation. Generally, the working pressure of the thermal oil pump is 4 ~ 8kg / cm2. Actually, the pressure of the thermal oil pump differs from different working conditions.
What are the factors that affect the maximum pressure of thermal oil heater?
1. Pressure of circulating hot oil pump
The pressure of liqu...
Industrial production and economic development are inseparable from the support of boilers. Boilers are divided into many types according to different classification methods, and organic carrier boilers are an important type. Users often ask what is an organic carrier boiler. Here, ZOZEN boiler will answer you in detail.
What is an organic heat carrier boiler?
Organic carrier boilers, namely organic heat carrier boilers, also known as heat transfer oil boilers, use organic liquid as the heat c...
Organic heat carrier is widely used because of its advantages of low pressure and high temperature and high precision control of medium operation.
Is the organic heat carrier a boiler? According to Article 88 of Chapter VII Supplementary Provisions of the Regulations on Safety Supervision of Special Equipment, the meanings of the following terms in this Regulation are: Boiler refers to the closed equipment that heats the liquid to a certain parameter and bears a certain pressure by using variou...
The exhaust gas loss of thermal oil heater refers to the heat that is taken away with the exhaust of flue gas, which is called exhaust heat loss. The heat loss of boiler exhaust flue gas is particularly important, accounting for a large proportion, about 4~8%. So what causes the high exhausted gas temperature of the thermal oil heater?
Boiler exhaust gas temperature standard
Before explaining what causes the high exhaust gas temperature of the thermal oil heater, let you first understa...
Different combustion modes are the core difference between fluidized bed boiler and common boiler.
Fluidized bed boiler adopts fluidized combustion mode. After the fuel is crushed to a proper particle size by a crusher, it is fed from the upper part of the air distribution plate of the combustion chamber by a coal feeder, mixed with the hot boiling materials in the combustion chamber, heated rapidly, and the fuel quickly catches fire and burns. Under the action of high air velocity, a large num...
