The main goal of most ammonia vaporizer systems is to provide users with a supply of ammonia vapor that is adequate for specific application requirements. This process is achievable by vaporizing liquid ammonia. In some cases, these highly intricate vaporizers are used to maintain either additive or minimum pressure within storage tanks. Maintaining pressure allows for the transferring or monitoring of liquid ammonia from the tank.

Scraped Surface Heat Exchangers

Operations of these systems flow into the housing of the vaporizer. This is where the electrical immersion heater is found. If pressure falls below designated pre-set, lower-level values, the heater switches on automatically. Liquid ammonia is then vaporized and returned to the top portion of the tank. Pressure within systems slowly reaches a pre-set, upper-level value that instantly turns the heater off using pressure control switches.

During operations, you must follow specific precautions and guidelines.  First, you need a consistent supply of liquid ammonia that is available when needed. Liquid ammonia is required to immerse the heating elements. Storage tanks have liquid outlets valves that supply the vaporizer housing. Keep in mind that associated excess flow-valves need to remain open for operations to work. The return valve found in a storage tank also must remain open.

Ammonia Vaporizers

For side-arm vaporizers, if users close either the vapor return valve or the tank’s liquid outlet valve during operations, it will cause the heater elements to overheat and potentially burn out.

For more information on ammonia vaporizers and scraped surface heat exchangers, you should not hesitate to give our team a call.

Scraped Surface Heat Exchangers