The reason why the natural gas generator is not charging may be as follows. 1. When starting for the first time after prolonged parking, the generator cannot rotate.
2. The natural gas generator set made abnormal noise during operation and suddenly stopped, and the generator could not run when restarted.
1. The natural gas generator suddenly makes an abnormal noise during operation and causes a shutdown. The reasons are mainly: holding tiles, sticking cylinder, broken crankshaft or connecting rod, preventing the generator from starting. If the intake valve and exhaust valve are blocked so that air cannot enter or exit, or if there are foreign objects on the top of the piston, the generator will not spin during startup and will not be able to start. 2. If the natural gas generator is not used for a long timeperiod, it will also malfunction for the first time: for example, the battery poles are in poor contact, the starter line is not connected, or the battery line is broken internally. and the line is blocked; the battery has insufficient power and cannot drive rotation, etc. Or there is a break in the starting circuit itself; the starter magnetic switch is defective; The starter gear does not engage with the generator flywheel ring gear, resulting in failure to start.
Please tell me about the efficiency comparison of gas generators and steam turbine generators
1. The unit's natural gas requirements are within 1 m in front of the unit's gas inlet pressure regulator. valve ① Natural gas pressure 100 ~ 300 kPa (boost) or 50-300 kPa (without boost); ②The volume content of methane in natural gas is nots less than 70%; ③H2S≤20 mg/Nm3; 5 μm and the impurity content is ≤ 30 mg/Nm3;
If the fuel gas contains high sulfur and ammonia components, it will not only seriously corrode the spark plug electrode ignition, but will also increase the acid number in the engine. oil, corrode the internal parts of the unit and easily generate sediment, which will increase engine oil damage, corrosion and engine wear.
2. The unit's biogas requirements are within 1m of the unit's gas inlet pressure regulating valve ① Biogas temperature ≤40°C; ② Biogas pressure 3 ~ 10 kPa, pressure change rate ≤ 1 kPa/min; The volume content of methane in biogas is not less than 40%, and the change rate is ④H2S≤200mg/Nm3 ⑤NH3≤20mg/Nm3 ⑥The particle size of impurities is ≤5μm; impurities are ≤ 30 mg/Nm3; ⑦ Moisture content of biogas ≤ 40g/Nm3. For biogas with a methane volume content of 30-40%, a particular unit configuration is required and another product model must be selected.
If the fuel gas contains high sulfur and ammonia components, it will not only seriously corrode the spark plug electrode, but also increase the acid index in the engine oil, will corrode the internal parts of the unit and easily generate sediment, which will increase engine damage. Corrosion and wear.
3. The unit's gas requirements are within 1m in front of the unit's gas inlet pressure regulating valve ① Gas temperature ≤40°C; ② Gas pressure 3 ~ 10 kPa, pressure change rate ≤ 1 kPa/min; ③ The volume content of methane in the gas is not less than 9%, and the rate of change is ≤ 2%/min ④ For the volume content of methane; For gas less than 30%, the sum of the vo contentlume of methane and oxygen should not be less than 28%, and the volume content of oxygen should not be less than 16% ⑤ Impurity particle size ≤ 5 μm, impurity content ≤; 30mg/Nm3. ⑥The hydrogen sulfide content should not exceed 200 mg/m3. For gases beyond the specified range, it is necessary to communicate with the manufacturer and check whether this is feasible based on the gas composition.
4. The unit's coke oven gas requirements are within 1 m in front of the unit's gas inlet pressure regulating valve. ① Coke oven gas temperature ≤40°C. ② Coke oven gas pressure 3 ~ 10 kPa. rate of change ≤ 1 kPa/min; ③ Volume content of hydrogen in coke oven gas ④ H2S ≤ 200 mg/Nm3; ⑤ NH3 ≤ 20 mg/Nm3; ⑥ Tar content ≤50mg/Nm3; m3; ⑧The moisture content of coke oven gas is ≤40g/Nm3.
If the fuel gas contains components with a high sulfur andammonia, it will not only seriously corrode the spark plug electrode, but also increase the acid number in the engine oil, corrode the internal parts of the unit and easily generate sediment, which will increase the engine damage. Corrosion and wear.
Gas generators are generally small generators that primarily burn fuel gas to run the engine and produce electricity. Generally, the power is not very large (hundreds to tens of kilowatts). Because the combustion efficiency of the fuel gas is high, the efficiency of the gas generator is high. The advantage is small size, flexibility and convenience. The downside is low power.
Steam turbine generators are generally used in large power plants and are also used in large ships. The power can be very important and is generallyent used in thermal power plants (coal or nuclear). The power exceeds hundreds of thousands of kilowatts. Because it is the hot gas that drives the steam turbine to drive the generator, the efficiency after thermal conversion is lower than that of the gas turbine to generate electricity. The advantage is that it has high power, but the disadvantage is that it is large in size and difficult to use flexibly and conveniently.