Taylor-wharton XL-65HP (with dual regulators) Manuel d'utilisateur télécharger pdf (Page 5)

OPERATION

XL-65 and XL-65HP

Component

Locations

The XL-65/65HP will store up to 240 liters of product. The two cylinders can deliver either

liquid or gas. The following component and circuit descriptions are pertinent to the opera-

tion of all the containers and should be read before attempting operation. The components

may be identified on the Component Location Illustration.

Internal Vaporizer – A liquid container for gas service must have an internal heat ex-

changer that functions as a gas vaporizer coil to convert liquid product to gas continu-

ously during withdrawal. The XL65-XL65HP utilize an internal heat exchanger that is in-

side the vacuum space attached to the container’s outer casing. It provides a mean of

introducing heat from outside the container’s insulated jacket, to vaporize liquid as gas-

eous product is withdrawn. The capacity of this circuit is sufficient to vaporize at flow rates

up to 350 cfh @ NTP (9.2 cu.m/h @STP). If a greater continuous demand is put on the

vaporizer, an external vaporizer should be added to properly warm the gas and avoid

malfunction, or damage, to gas regulators, hoses, and other downstream components.

Pressure Building – A Pressure Building circuit is used to ensure sufficient driving pres-

sure during high withdrawal periods. This function is actuated by opening a hand valve that

creates a path from the liquid in the bottom of the container, through the Pressure Building

Regulator, to the gas space in the top. When the pressure building valve is open, and the

container pressure is below the pressure building regulator setting, liquid taken from the

inner container is vaporized in a heat exchanger which is inside the outer casing. The

expanding gas is fed into the upper section of the container to build pressure. The result-

ing process will drive either the liquid or gas delivery system.

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Taylor-wharton XL-65HP (with dual regulators) Manuel d'utilisateur Page 5