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Device for removing moisture from a hydraulic medium

A hydraulic medium and equipment technology, applied in the field of equipment for dehumidification of hydraulic medium, can solve the problem of dry air volume flow limitation, etc., and achieve the effect of increasing the residence time

Inactive Publication Date: 2013-03-27
HYDAC FILTER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These known devices are only suitable to a limited extent for permanent operation with the long maintenance intervals that are generally required for the operation of wind power installations
Furthermore, the volume flow of supplied, dry air is limited by this device

Method used

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  • Device for removing moisture from a hydraulic medium

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Effect test

Embodiment Construction

[0024] In the drawing, a device 1 for dehumidifying a hydraulic medium 2 in a transmission housing 9 of a wind energy installation is shown in a schematic longitudinal section, partly not to scale. The transmission 15 described is used in so-called wind energy installations in which a wind-driven rotor (not shown) outputs its drive power to an input shaft 16 . After transmission 15 , the drive power is output to an output shaft 17 , to which a generator for generating electric current can be connected, for example. The rotors of such wind energy installations have very low rotational speeds and generally high torques. Since a generator used to generate electricity requires a higher input speed, the transmission is usually set with a slow to fast gear ratio such as 1:80. Various gear designs, such as, for example, planetary gears or other spur gears with inclined or straight teeth, are likewise used in such wind energy installations.

[0025] In the exemplary embodiment shown, ...

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Abstract

The device according to the invention for removing moisture from a hydraulic medium (2) with at least one gaseous drying medium (3) is characterized in that the drying medium (3) is air and / or some other working gas with corresponding moisture absorption capability, said drying medium being conducted by means of a delivery device (4) from an area surrounding the hydraulic medium (2) to the hydraulic medium (2) when the moisture content of the respective gaseous drying medium (3) is lower than the degree of water saturation of the hydraulic medium (2).

Description

technical field [0001] The invention relates to a device for dehumidifying a hydraulic medium with at least one gaseous drying medium. Background technique [0002] In hydraulic installations, for example in the form of large transmissions, hydraulic media such as lubricants or the like are exposed to changing ambient conditions. This can lead to unwanted penetration of particles, also in the form of water, into the lubricant, which is essentially accompanied by a deterioration of the physical properties, in particular with regard to the desired lubricating properties of such lubricants. A typical example of this problem is the transmission of a wind energy installation. To convert the rotational speed of the rotor of a wind energy installation to a rotational speed suitable for driving a generator, planetary gears or often spur gears of the internal gear pair system type are used. At the known very low rotational speeds, the rotor consisting of a hub with two or more blad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/04F15B21/041
CPCF03D11/02B01D1/14F15B21/041C10M175/0091F15B21/04F03D15/00Y02E10/72F03D80/70F03D9/25F03D15/10
Inventor J·克莱伯A·威廉
Owner HYDAC FILTER SYST