Incinerator layout:
The efficiency of the incinerator can be divided into five systems: air supply system, incineration system, monitoring system, fuel system and electric control system.
The following is a detailed description of each system:
1. Air supply system
The key components of the air supply system are: shell, fan motor, fan impeller, air gun fire pipe, damper damper plate of damper controller and dispersion plate. The function of the air supply system is to send the atmosphere with certain wind speed and breeze into the incinerator.
The box incinerator has a large number of plastic injection material casings and shells: assembly supports of various components of the incinerator and important components of fresh air intake channel. In terms of shape, it can be divided into box type and gun type. And the power is generally small, the high-power incinerator accepts numerous split type shells, generally gun type. The shell is generally made of high strength light alloy castings.
There are also a few incinerators that accept a single motor to supply oil pump energy. Some small power incinerators accept single-phase motors
Fan motor: it is important to supply energy for the operation of fan impeller and high-pressure oil pump. The power is relatively small, the large area incinerator accepts three-phase motor, and the motor can only make ordinary things of the incinerator by following the determined deviation and twisting. Sufficient atmosphere shall be blown into the incinerator to meet the burning demand. It is composed of a cylindrical wheel equipped with blades with a certain skew angle. The fan impeller: through high-speed torsion, sufficient wind pressure is generated to reduce furnace resistance and chimney resistance. It is made of high-strength light alloy steel and injection molding products. All qualified fan impellers have superior dynamic average function. It is also an integral part of the air inlet channel.
Air gun fire pipe: it is used to guide air flow and consolidate air pressure. Generally, there is a coat type flange to connect with the furnace mouth. Its material is generally alloy steel with high strength and high temperature resistance.
Experience the machine linkage to master the rolling of the damper plate. Generally, there are two kinds of hydraulic driving master and servo motor driving master. One is driving assembly. The former is not easy to get in the way of consolidation, while the latter is accurate and smooth.
Generally, the injection baffle is in single-chip mode, and the damper baffle: the main purpose is to adjust the size of the air inlet channel to control the size of the air inlet. There are injection molding and alloy materials. The alloy baffle plate has a variety of combination modes, such as single, double, three and so on. It helps to mix the atmosphere and fuel well. The dispersing disc: its special layout can produce the reversed air flow. At the same time, it has the purpose of regulating the secondary air volume.
2. Incineration system
The key components of the incineration system are: incineration transformer incineration electrode, electric fire high-voltage cable. The effectiveness of the incineration system lies in the inclusion of combustion atmosphere and fuel.
The output voltage of incineration system is generally 25kv26kv27kv, and the output current is generally 15-30ma? Incineration transformer: a kind of conversion element that produces high-voltage output. Generally, there are two types of ignition fuel: single type and split type.
Incineration electrode: convert the mode of high-voltage electric energy experiencing arc discharge into light energy and heat energy. Electric fire high voltage cable: its purpose is to transmit electric energy.
3. Monitoring system
The important parts of the monitoring system are flame monitor, pressure monitor, temperature monitor, etc. The function of the monitoring system is to ensure the safe operation of the incinerator. And generate the light signal speech program controller.
There are three types of flame detector: photoresist, UV eye and ionization electrode. Flame monitor: its main purpose is to monitor the status of the flame.
Its function and principle are: photosensitive resistance is connected with a flame relay with three contacts, and a photosensitive resistance is mainly used on light oil and heavy oil incinerators. The resistance value of the photoresistor changes with the number of light absorbed by the device. The more light is absorbed, the lower the resistance value is. When the voltage applied to both ends of the photoresistor is inevitable, the higher the current in the circuit is. When the current reaches the inevitable value, the flame relay is activated, so that the incinerator continues to work downward. When the photoresist doesn't feel enough light, the flame relay doesn't work and the incinerator will stop working. Photoresistors are not suitable for gas incinerators because the flame is not bright when the gas is burned. One of the two output high-voltage wires is grounded, B ionization electrode: mostly used on gas incinerator.
The program controller inputs 220V voltage to the incineration transformer. The other one is connected to the incineration electrode. The discharge between the electrode and the ground produces electric sparks, burning gas and atmosphere inclusions. The program controller supplies power to the ionization electrode. If there is no flame, the power supply on the electrode will stop. If there is flame, the gas is ionized by its own high temperature. The ion current moves between the electrode, the flame and the incineration head. The ion current is rectified into direct current and experiences The grounded shell of the incinerator reaches the flame relay to ensure that the subsequent work of the incinerator is carried out smoothly. If the ionization electrode produces a ground sign, the flame relay that the current generated is exchange rather than direct current will not work and the program controller will lock up. In addition, the ionization current and the incineration current pass through the same grounding circuit smoothly. Because the incineration current is much stronger than the ionization current, if the two currents flow in opposite directions, the ionization current will be blocked by the incineration current, resulting in the open circuit of the incinerator, which may be compensated by the reverse input of the incineration transformer, because after the reverse connection of the wires, the exchange of the incineration transformer will be caused The electric deviation is turned 180 ° and the incineration current deviation generated is also turned 180 °. As a result, the two current deviations are the same. In this way, the above disadvantages are overcome. In addition, if the flame in the ionization zone is not consolidated, it will also cause flame
——Author：ebico