Abstract: Mist based humidification systems are employed in numerous environments. However, such systems are typically small portable units whilst it would be beneficial to employ ultrasonic based mist humidifiers in larger environments. However, these environments introduce additional requirements such as reducing the emission/distribution of condensed water as droplets from the humidifier, allowing independent placement of the mist generator from the mist distribution element(s), and the requirement to “throw” the mist a reasonable distance into the environment rather than relying upon the circulation within the environment to achieve distribution. Embodiments of the invention address these issues whilst also supporting modular humidification systems operating at multiple capacities.

Abstract: Mist based humidification systems are employed in numerous environments. However, such systems are typically small portable units whilst it would be beneficial to employ ultrasonic based mist humidifiers in larger environments. However, these environments introduce additional requirements such as reducing the emission/distribution of condensed water as droplets from the humidifier, allowing independent placement of the mist generator from the mist distribution element(s), and the requirement to “throw” the mist a reasonable distance into the environment rather than relying upon the circulation within the environment to achieve distribution. Embodiments of the invention address these issues whilst also supporting modular humidification systems operating at multiple capacities.

Abstract: A steam generating humidifier apparatus (1) comprises a water container (2) with a water inlet (11) and a steam outlet (12) and at least two elongated electrodes (3, 4) arranged vertically within the container. The electrodes have each an upper electrode end (3?, 4?) and a lower electrode end (3?, 4?) and at least one of the electrodes is provided at its lower electrode end with an end piece (15) made of an electrically non-conducting material which end piece is connected to the lower electrode end. This will avoid arcing between the electrode and the water surface in cases where the water level drops so low that the electrodes are exposed.

Abstract: A humidifier includes a burner for burning fuel within a water tank for generating steam, a primary heat exchanger within the water tank for transferring heat from products of combustion of the fuel to the water within the water tank, and a secondary heat exchanger. The secondary heat exchanger includes a combusted gas section for receiving the cooled products of combustion from the primary heat exchanger and a water section for transferring additional heat from the cooled products of combustion to water flowing within the secondary heat exchanger. The humidifier further includes a secondary fill valve which is pulsed to provide cool water for transferring additional heat from the cooled products of combustion to water flowing within the secondary heat exchanger. The water from a primary fill valve is fed directly into the water tank. An outlet of the secondary heat exchanger is fed directly into the water tank.

Abstract: A humidification device (1) is shown wherein water is nebulized by a vibrating mesh with very small holes. The mesh is part of a reservoir which is fed by a valve arrangement which allows to direct water from a conduit over several water lines within the device either back to the conduit or into the reservoir. The device and a system with such devices allow to humidify and/or cool compartments such as rooms with a very fine mist of water which is hardly visually detectable. The system and device is adapted to be part of a permanent installation with low maintenance.

Abstract: A steam generating humidifier apparatus (1) comprises a water container (2) with a water inlet (11) and a steam outlet (12) and at least two elongated electrodes (3, 4) arranged vertically within the container. The electrodes have each an upper electrode end (3?, 4?) and a lower electrode end (3?, 4?) and at least one of the electrodes is provided at its lower electrode end with an end piece (15) made of an electrically non-conducting material which end piece is connected to the lower electrode end. This will avoid arcing between the electrode and the water surface in cases where the water level drops so low that the electrodes are exposed.

Abstract: Today vaporizing humidifier must achieve their desired function and operate with conflicting requirements such as cost of ownership (CoO) and regulatory guidelines. Low CoO requires high injection efficiency, low water consumption, and high energy efficiency to reduce energy consumption and running costs. All of this is sought with variable humidification and low exhaust gas temperatures from safety/regulatory viewpoints as well as ducting material selection and venting of the exhaust gases and high efficiency. To date vaporizing humidifiers have been partially successful utilizing a single stage heat exchanger that could not extract latent energy from exhaust gases because the secondary fluid is boiling water. High exhaust temperature requires high temperature stainless steel exhaust venting.

Abstract: The invention relates to a hydraulic device (15; 55) for an evaporative system (11), comprising at least one pump (22; 62) and a housing (16; 56) with a water inlet (17; 57) and one or more water outlets (19; 59), wherein the at least one pump (22; 62) is mounted on the housing (16; 56) and a water tank (20; 60) is provided by the housing (16; 56), the water tank (20; 60) being arranged between the water inlet (17; 57) and the one or more water outlets (19; 59), wherein the at least one pump is provided for pumping water through the one or more water outlets. The invention furthermore relates to an evaporative system (11) with such a hydraulic device (15; 55).