No

igniter (English name: igniter) refers to a device that can provide enough energy to ignite pulverized coal and oil (gas) fuel in an instant and can stabilize the flame. Igniters can be divided into commercial stoves and civil stoves. Commercial stoves are mainly used to ignite cooking stoves in catering kitchens. Because the operating environment of catering kitchens is complicated, the requirements for selecting igniters are relatively strict for civil use. Civil use is mainly used in the ignition system of household stoves, and the use environment is simpler than that of catering stoves, and more pulse ignition is used.

the igniter is mainly composed of power supply, ignition coil, distributor, ignition switch, spark plug,

igniter [1]

additional resistor and its short circuit device, high and low voltage wires, etc.

1. power supply: it consists of storage battery and generator. When starting, the ignition system is provided with low-voltage electric energy by the storage battery; After starting, when the generator voltage is higher than the battery voltage, the ignition system is provided with low-voltage electric energy by the generator.

2. Ignition coil: converts the low-voltage electricity of 1.2v provided by automobile power supply into high-voltage electricity that can break through the gap between spark plugs.

3. distributor: driven by the generator camshaft, the primary current of the ignition coil is turned on and off on time, so that the ignition coil can generate high-voltage electricity in time, and the high-voltage electricity is transmitted to the spark plugs of each cylinder according to the ignition sequence; At the same time, it can automatically and artificially adjust the ignition time. Among them, the function of capacitor is to reduce the contact spark of breaker and improve the secondary voltage of ignition coil.

4. Ignition switch: it controls the on-off of the low-voltage circuit of the ignition system, and controls the start and shutdown of the generator.

5. Spark plug: high voltage electricity is introduced into the combustion chamber to generate an electric spark to ignite the mixture.

6. Additional resistor short-circuiting device: short-circuiting the additional resistor during starting to increase the primary current of the ignition coil and enhance the flashover energy of the spark plug during starting.

2 types

editing

There are mainly three types as follows:

Electronic pulse igniter: The pulse igniter has low ignition energy and low spark temperature because of its low power. For some combustible gases with high ignition point and mixed gases with low concentration, the ignition rate of the burner with blast is low, which often leads to safety accidents such as ignition failure or deflagration, and it is easy to burn out the fuel for a long time without continuous ignition.

electronic high-frequency and high-voltage igniter: high power, high ignition energy and high spark temperature, but the ignition time generally does not exceed 5 minutes, otherwise it is easy to heat up and burn out, but it is large and heavy, and it is difficult to install and transport.

coil silicon steel sheet igniter: high power, high energy, high spark temperature, ignition time of about 11 minutes, otherwise it will burn out, and it will be small and light, but the domestic quality is generally poor, and it will occupy 91% of the market by imports.

3 defects

Editing

Four major defects:

1. Unable to meet the requirements of multi-cylinder and high speed engine;

2. The carbon deposit on the spark plug is difficult to clean;

3. The system capacitance is not easy to choose;

4. The contact clearance needs to be adjusted frequently.