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4Coalbed gas generator

300 Series Coal-to-Gas Generator Sets

Applicable industries for gas generator sets:
Coal-to-Gas Power Generation Project
Gas gas overview:
Coal gas is a gas containing combustible components obtained by processing coal as raw material. According to the processing method, gas properties and uses, it is divided into: water gas, semi-water gas, air gas (or producer gas).
Main components of gas:
The main components are H2 (7%~15%), CO (23%~31%), CH4 (1.5%~3%), N2 (46%~54%), CO2 (3%~8%) A small amount of H2S, O2.
Advantages of 300 Series Gas Generator Sets:
1. The 300 series gas generator set has the advantages of large cylinder bore, long stroke and large displacement, and is suitable for low calorific value gas, which can ensure the continuous and constant output power of the set.
2. The 300 series unit adopts an internal mixed air intake system and an automatic air-fuel ratio control system, which completely avoids the problem of high hydrogen gas tempering and firing. Prevent backfire and ensure safe gas delivery.
3. Naturally inhaled to ensure the safety of gas transmission. The pressure of the gas source only needs to be greater than 2kPa, which makes the gas unit applicable to a wider range, has a strong applicability to the tar in the gas, and the gas source low-pressure transmission is safer. Self-priming air intake, the gas directly enters the combustion chamber after mixing, no air intake links such as turbocharger and intercooler are required, and there are few components, which naturally reduces the failure rate.
4. The ignition system of the 300 series gas generator sets adopts the ignition system imported from the United States or Germany to ensure controlled ignition, high ignition energy and precise ignition time, so that the work can be more thorough, the energy is larger, and the explosive force is stronger.
5. Removable intake valve box, it is convenient to maintain the intake valve and clean the tar without removing the cylinder head.
6. The low speed ensures the service life of the unit, the annual operation is guaranteed to be 8000h, and the overhaul period is 60000h.
7. The unit can be connected to the grid manually or automatically, or it can operate in an island, which can realize functions such as remote monitoring and operation.
300 Series Coal-to-Gas Generator Sets
North Korea coal-to-gas power generation project (3 units of 8300 units)
Gas generator set requirements for gas:
■General requirements are within 1 meter before the gas inlet pressure regulating valve of the unit:
◎Gas temperature≤40℃
◎Gas pressure 2.5 ~ 10kpa, pressure change rate ≤ 1kpa/min.
◎ H2S ≤ 200mg/Nm3
◎ NH3 ≤ 20mg/Nm3;
◎ Tar content ≤ 50mg/Nm3
◎Impurity particle size ≤ 5μm, impurity content ≤ 30mg/Nm3
◎Moisture content≤40g/Nm3
◎Gas calorific value ≥ 4MJ/Nm3
300 series coal-to-gas generator set parameters:
300 Series Coal-to-Gas Generator Sets
If the content of sulfur and ammonia in the combustible gas is high, it will not only seriously corrode the spark plug electrodes, but also increase the acid value in the oil, corrode the internal parts of the unit, and at the same time easily generate deposits, which will increase the wear and corrosion of the engine.
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