Principal of Operation of a Clayton Steam Generator Cont'd

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The Clayton Pump

The Clayton Pump is of a remarkable design and is manufactured specifically to provide the forced circulation through the coil of a Clayton Steam Generator.

The pump is a positive displacement type which ensures flow stability over a wide range of varying pressure conditions and it has a number of mechanical advantages. In particular The Clayton Pump does not rely on mechanical seals, packing rings or glands to separate the water being pumped from the drive mechanism. Operation is completely unaffected by relatively high water temperature and the construction of the Clayton Pump is extremely robust. The Clayton Pump is also very reliable and low in maintenance.

Pumping action is produced by the movement of a diaphragm which acts against a column of water on one side of the diaphragm. The rise and fall of the water column causes spring loaded inlet and outlet check valves at the top of the column to open and close and this produces flow through the pump. The diaphragm is driven on the other side by the movement of a piston which is semi-submersed in an oil bath. The piston crankshaft is driven by a motor and v-belt drive. On the smaller model Clayton Steam Generators (E10, E15 and E26) the diaphragm is direct driven.

On every Clayton Steam Generator the water supply is related to the steam output. On step fired Clayton Steam Generator the output of the pump is also stepped and on fully modulating units the pump output is fully modulated by means of a plc controlled speed regulator.



The Clayton Separator

The Clayton Steam Separator is a High Efficiency centrifugal design which has no moving parts. The very high steam quality is produced even under variable load conditions.

The steam/water mixture from the Clayton Steam Generator is directed to the inlet of the separator where is separated by centrifugal force. The water is collected and dry steam is discharged through the top outlet.



The Clayton Burner

The burner of the Clayton Steam Generator is specially designed to ensure that the flame is confined to the combustion chamber and that combustion is complete before the hot gasses are released over the coil.

To achieve this the air for combustion enters the burner manifold at high velocity where it picks up fuel in a whirlpool action to form a heart shaped flame where the flame tip folds over into the low pressure zone. Fuel and air are blended in precise ratios and the burner fires upwards, which is the natural direction for a flame.