Principle of gas liquid parking heater

The YJT series gas heater is fueled by natural or liquefied gas, CNG or LNG, and has near-zero exhaust gas. Features automatic program controlto ensure safe and reliable operation. Patented product, originated in China.
The YJT series gas heater has multiple protective features, which includes a temperature sensor, overtemperature protection, decompressor and gas leakage detector. These devices ensure the heater's safety and reliability.
Its lon probe sensor acts as ignition sensor, which is accurately calibrated.
The YJT series gas heater has 12 types of index signals, which can indicate heater faults. This makes the YJT series liquid heater safer and more convenient to maintain.
Suitable for preheating engine with a cold start and heating the passenger compartment in various types of gas powered buses, passenger buses and trucks.
Attention:
The fuel for this product is natural gas (CNG or LNG).
You must use coolant for the minimum ambient temperature.
Do not turn off the heater power supply before the power indicator goes off.
Do not replace the spare parts by yourselves, otherwise it is not covered by the warranty.
Usage environment:
Using temperature:-40C~+50C
Storage temperature:-40C~+80℃
Altitude:≤3000m(>3000 m special order)
Principle:

The motor(1) drives the fan(5) to rotate at high speed, the vacuum detector(2) detects the negative pressure, and the gas solenoid valve opens. The fan inhales the combustion air and the gas at the same time and air and gas are fully mixed in the air-fuel mixer(4) and then are discharged from the nozzle(9). The igniter(3) is discharged by the ignition electrode(7), ignites the combustion gas, the air-gas mixture is burned in the combustion chamber(11), heat generated passes through the lamella(8), and exhausts are discharged from the exhaust pipe to the atmosphere. The lamella(8) absorbs heat and heats the circulating liquid in the heat exchanger(10), and the liquid is discharged under the action of the circulation pump(6).






