Other

Lattice Intellectual Property Limited

Agisen Limited

Stuart Charles Murray

Timothy John Litt

The invention provides a method and system for suppressing the dew point of a compressed gas to a minimum level below ambient temperature by controlling pressure, cooling and removing liquid water condensate from the compressed gas prior to storage in a receiver vessel and/or delivery to point of use. In one embodiment, the method has an air intake for accepting ambient air having any level of water vapour content, a compressor for compressing the air, a heat exchanger which cools the compressed air and sets the water vapour content of the air to a value determined by the pressure and the exit temperature of air in the heat exchanger, a liquid water separation device which removes condensed liquid water, a pressure control valve which ensures the maintenance of a minimum set pressure in the upstream system, an air receiver to act as a reservoir for the delivery of unsaturated compressed air and a main system regulation valve used to limit the maximum pressure of the compressed air delivered to the downstream system. In a preferred embodiment, the equipment and methodology forms a complete system that can be used for general compressed air applications as well as in specific compressed gas processes that have a dry gas requirement.

Compressed gas drying system

A water detecting apparatus includes a source of infra-red radiation which is reflected off an inner surface of a pipe wall onto a mirror directing the infra-red signal along a path to an infra-red detector connected by an electrical signal path to an electronic control. The path is interrupted by a rotating chopper having windows occupied by two optical filters. The first optical filter only passes an infra-red signal of wavelength 1900 nm which is absorbed by water, while the second optical filter only passes an infra-red signal of wavelength 2200 nm, another wavelength absorbed by water, but not to the same extent as the 1900 nm wavelength. The 2200 nm wavelength serves as a reference signal. When the strength of the infra-red signal path by the first optical filter decreases in relation to the strength of the infra-red reference signal path by the second optical filter, this is due to water on the surface absorbing the 1900 nm wavelength more than the 2200 nm wavelength, and the electronic control causes an indicator to indicate the presence of the water.

Growing community of inventors

Oakham, United Kingdom

Stuart Charles Murray