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.
Reasonable arrangement of igniters in gas-fired boiler can not only obtain ideal ignition effect, but also save ignition fuel. However, due to the different types of fuel and burner, the igniter arrangement of gas boilers is different.
According to the characteristics of biomass fuel, the biomass boiler produced by ZOZEN Boiler has been specially designed in structure, which has taken the lead in solving the problems such as furnace arch collapse, furnace door burn-out, hopper fire and stopper coking.
First, let's explain what an industrial oil-fired boiler is. The industrial oil-fired boilers refer to boilers that use oil as the fuel. Generally, they burn diesel oil, special fuel oil for boilers, heavy oil and waste oil, etc. However, due to the rising price of diesel oil and the problem of supply, they are now turning to fuel oil.
The gas-fired boiler is operated by an advanced combustion machine, equipped with automatic gas supply and ignition combustion system, and the gaseous fuel is easy to burn. Therefore, the gas-fired boilers need not be equipped with blower and induced draft fan components.
The environmental thermal oil heater refers to a boiler heated by heat transfer oil. Heat transfer oil, also known as organic heat carrier, has been used as an intermediate heat transfer medium in industrial heat exchange for more than 50 years.
The economizer of condensing gas-fired boiler can be installed in the flue of the current CFB boiler, to recovery the energy from the high-temperature flue gas, in order to reduce the fuel consumption. Also, the economizer helps to absorb the air pollutants such as the NOx and sulfur dioxide.
