Abstract: Drying device for drying compressed gas which includes at least two vessels with regenerable desiccant and an adjustable valve system which is such that a vessel can dry compressed gas, while the other vessel is being regenerated, whereby by regulating the valve system, the vessels can each in turn dry gas. The drying device includes a regeneration pipe for supplying a regeneration gas which runs from an outlet for dried gas to the valve system, and in which heating means are provided, whereby the drying device is provided with a return pipe for returning the regeneration gas to an inlet, running from the valve system to an inlet pipe which connects to said inlet and in which a venturi ejector is mounted, to which said return pipe is connected, and that regulating means are provided for regulating the flow of gas going through the venturi ejector.

Abstract: A regenerator for regenerating a drying agent in a drying device (1) for compressed gas includes a regeneration line connected to a regeneration inlet of the drying device (1), which regenerating line (10 connects the regeneration inlet to an outlet of a blower for the supply of a regeneration gas. A heater is provided between the outlet of the blower and the regeneration inlet for heating up the regeneration gas. Between the outlet of the blower, on the one hand, and the heater, on the other hand, an additional vessel with drying agent is provided for drying the regeneration gas.

Abstract: Method for drying compressed gas by means of a drying device with an inlet for the compressed gas to be dried and an outlet for the dried compressed gas. The drying device includes at least two vessels filled with a regenerable desiccant and an adjustable valve system including a first valve block and a second valve block that connects the inlet, respectively outlet, to the vessels. The adjustable valve system is being regulated as such that at least one vessel will dry compressed gas, while the other vessel will be regenerated and cooled successively, wherein by regulation of the valve system the vessels will each in turn dry compressed gas. The method includes calculating the time period (tads) during which a vessel (2) dries compressed gas, calculated on the basis of a (tads) formula tads=A*B.

Abstract: A device for drying compressed gas, having an inlet for compressed gas to be dried and an outlet for dried compressed gas. The device includes at least two vessels, a regenerable drying agent and a controllable valve system. By controlling the valve system, the vessels are each in turn successively regenerated. The device is provided with a regeneration conduit splitting off a portion of the dried compressed gas as a regeneration gas and feeding it into the at least one vessel that is being regenerated. The regeneration conduit at least partly extends through an opening in the vessels such that the regeneration gas can be split off from the vessel that dries the compressed gas. A heater is provided in the regeneration conduit for heating the regeneration gas before the regeneration gas is fed through the drying agent into the vessel that is being regenerated.

Abstract: A device for drying compressed gas, having an inlet for compressed gas to be dried and an outlet for dried compressed gas. The device includes at least two vessels, a regenerable drying agent and a controllable valve system. By controlling the valve system, the vessels are each in turn successively regenerated. The device is provided with a regeneration conduit splitting off a portion of the dried compressed gas as a regeneration gas and feeding it into the at least one vessel that is being regenerated. The regeneration conduit at least partly extends through an opening in the vessels such that the regeneration gas can be split off from the vessel that dries the compressed gas. A heater is provided in the regeneration conduit for heating the regeneration gas before the regeneration gas is fed through the drying agent into the vessel that is being regenerated.

Abstract: Device for drying compressed gas having at least two vessels containing a regenerable drying agent and an controllable valve system with a first valve block and a second valve block. The device is further provided with a first regeneration line with heating means and a second regeneration line for discharging saturated regeneration gas. The regeneration lines are connected to a different valve block, wherein in the first regeneration line between a blow-off opening or blower and the heating means an additional vessel with a regenerable drying agent is incorporated.

Abstract: Method for drying compressed gas by means of a drying device with an inlet for the compressed gas to be dried and an outlet for the dried compressed gas. The drying device includes at least two vessels filled with a regenerable desiccant and an adjustable valve system including a first valve block and a second valve block that connects the inlet, respectively outlet, to the vessels. The adjustable valve system is being regulated as such that at least one vessel will dry compressed gas, while the other vessel will be regenerated and cooled successively, wherein by regulation of the valve system the vessels will each in turn dry compressed gas. The method includes calculating the time period (tads) during which a vessel (2) dries compressed gas, calculated on the basis of a (tads) formula tads=A*B.

Abstract: Method for drying compressed gas by means of a drying device with an inlet and an outlet including at least two vessels filled with a regenerable desiccant and a controllable valve system including a first and a second valve block connecting the inlet, respectively the outlet to the vessels. The valve system is being regulated such that one vessel will dry compressed gas, while the other vessel is successively regenerated and cooled. The method includes a first and a second cooling cycle. The first cooling cycle includes passing ambient air through the vessel to be cooled. The second cooling cycle includes branching off, expanding and sending dried compressed gas through the outlet to be branched off and then blowing it off through the vessel to be cooled, using either the first or the second cooling cycle, or both, depending on predetermined conditions.

Abstract: Drying device for drying compressed gas which includes at least two vessels with regenerable desiccant and an adjustable valve system which is such that a vessel can dry compressed gas, while the other vessel is being regenerated, whereby by regulating the valve system, the vessels can each in turn dry gas. The drying device includes a regeneration pipe for supplying a regeneration gas which runs from an outlet for dried gas to the valve system, and in which heating means are provided, whereby the drying device is provided with a return pipe for returning the regeneration gas to an inlet, running from the valve system to an inlet pipe which connects to said inlet and in which a venturi ejector is mounted, to which said return pipe is connected, and that regulating means are provided for regulating the flow of gas going through the venturi ejector.

Abstract: A method for regulating the regeneration time of an adsorption dryer, the method including the steps of: subjecting the adsorption dryer to an adsorption cycle; stopping the adsorption cycle after a preset adsorption time interval; and subsequently subjecting the adsorption dryer to a first regeneration cycle during a preset time interval. The method further includes maintaining the first regeneration cycle for an additional regeneration time interval if the measured pressure dew point or relative humidity is higher than a predetermined pressure dew point or relative humidity threshold; and/or stopping the first regeneration cycle if the outlet temperature is higher than or equal to a predetermined temperature threshold, and, if the time frame in which the adsorption dryer is subjected to the first regeneration cycle is greater than a minimum heat regeneration time interval.

Abstract: The present invention is directed to a dryer provided with an inlet for receiving a flow of compressed gas and an outlet for providing dry air, said dryer comprising: a first and a second adsorption vessel connected in parallel, a depressurization unit connectable to the inlet flow conduit of each of said first and second adsorption vessels; whereby the dryer further comprises a flow reducer connectable to the inlet flow conduit of each of the first and second adsorption vessels and whereby said control valves are adapted to be switched in a first state, and a second state.

Abstract: A method for regulating the regeneration time of an adsorption dryer, the method including the steps of: subjecting the adsorption dryer to an adsorption cycle; stopping the adsorption cycle after a preset adsorption time interval; and subsequently subjecting the adsorption dryer to a first regeneration cycle during a preset time interval. The method further includes maintaining the first regeneration cycle for an additional regeneration time interval if the measured pressure dew point or relative humidity is higher than a predetermined pressure dew point or relative humidity threshold; and/or stopping the first regeneration cycle if the outlet temperature is higher than or equal to a predetermined temperature threshold, and, if the time frame in which the adsorption dryer is subjected to the first regeneration cycle is greater than a minimum heat regeneration time interval.

Abstract: The present invention is directed to a dryer provided with an inlet for receiving a flow of compressed gas and an outlet for providing dry air, said dryer comprising: a first and a second adsorption vessel connected in parallel, a depressurization unit connectable to the inlet flow conduit of each of said first and second adsorption vessels; whereby the dryer further comprises a flow reducer connectable to the inlet flow conduit of each of the first and second adsorption vessels and whereby said control valves are adapted to be switched in a first state, and a second state.