explosion proof diesel engine | flame proof diesel engine |
We, Changsha PDM Machinery(Group)Co.,ltd make Cummins explosion
proof diesel engine using in oil field, coal mine, gas stations,
refineries, flour, cotton and flax processing
plants.
1. Mechanical part
1.1 Explosion-proof Cylinder Head
Made of high strength HT250 gray iron, without air valve guide
and seat ring, spiral intake port is adopted, intake manifold and
cylinder head are cast in one, and air valve seat surface is
quenched by high frequency. Explosion-proof diesel engine has
integral cooling water jacket, which is cooled by circulating
coolant on all high temperature surfaces.
1.2 Explosion-proof Exhaust Manifold
the single-channel exhaust manifold with integral water jacket is
made of high strength gray cast iron and supercharger
rear-mounted scheme. the diesel engine circulates coolant to cool
all high temperature surfaces.
1.3 Explosion-proof supercharger
Water-cooled turbocharger, with cooling water jacket cast on the
surface of turbine shell, is cooled by diesel engine circulating
coolant on all high temperature surfaces.
1.4 Washing Tank
the exhaust gas discharged from the supercharger enters the
washing tank through the exhaust main pipe with a water jacket.
the entrance of the wash tank is equipped with a fence type fire
arrester. the exhaust gas first passes through the flame
arrester, eliminating the possible flame or Mars in the exhaust
gas. the fence type flame arrester is circulated by diesel engine
coolant.
2. Electrical part
this explosion-proof diesel engine designed a protection system
for accidents and possible faults in use: when the maximum
surface temperature of the diesel engine body reaches 150 C, the
engine will be alarmed by the horn, and the engine will stop
automatically in one minute. When the exhaust temperature of the
diesel engine reaches 70 C, the engine will be alarmed by the
horn, and the engine will stop automatically in one minute when
the cooling liquid temperature of the diesel engine reaches 95 C.
the engine is alarmed by the loudspeaker and shut down
automatically in one minute. When the outlet temperature of the
compressed air starter of diesel engine reaches 130 C, the engine
is alarmed by the loudspeaker and shut down automatically in one
minute. In addition, in the operator's eye-catching position,
equipped with relevant instruments, to display important working
parameters, when the limit is reached, it can be found in time,
and manual shutdown.
2.1 Flameproof Permanent Magnet Generator and
Regulator
Flameproof permanent magnet generator and regulator are used to
meet the requirements of national safety standards. by connecting
explosion-proof intrinsically safe cables, no sparks are produced
during the operation of the engine and the safety factor of the
engine in dangerous environment is ensured.