Method and arrangement for dehumidifying interior air in off-shore installations
A facility, offshore technology, applied in the direction of separation methods, space heating and ventilation, chemical instruments and methods, etc., which can solve the problems of unwanted maintenance and downtime of dehumidification equipment, being in a humid environment, reducing the service life of salt filters, etc.
Active Publication Date: 2015-12-02
特伯德公司
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Problems solved by technology
[0018] However, the problem with external salt (i.e. salt that enters the dehumidification system from outside the wind turbine) is that it is in a humid environment and thus difficult to capture
This results in a high likelihood of salt passing through the filter, reducing the service life of the installed salt filter and causing undesirable maintenance and downtime of such dehumidification appliances, as described in the art
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[0026] A problem with salt filters of the state of the art when installed as part of a system for dehumidifying offshore installations is that such filters have a short service life and reduced efficiency due to salt clogging of the filter.
[0027] The present invention overcomes this problem by simply improving known dehumidification systems in construction, thereby increasing the efficiency and service life of the salt filter, and reducing the overall risk of salt diffusion in offshore installations and reducing the Maintenance time and repair costs of salt filter installed dehumidifiers in offshore installations.
[0028] A fundamental issue in dealing with external salinity in marine environments is with respect to the relative humidity-based physicochemical properties of the salt. Depending on the relative humidity, the state of the salt can be dry, supersaturated or wet. Often, all phases are present simultaneously in the air of a marine environment, with supersaturate...
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The present invention concerns a method and an arrangement for dehumidifying and desalting interior air in off-shore installations. A simplified arrangement is presented wherein exterior intake air containing water rich in supersaturated and wet salt particles is pretreated with dry and salt free pretreatment air before entering a dehumidifying and de-salting unit from which the intake air exits as desalted and dehumidified exit air. A part of this desalted and dehumidified exit air is then redirected to the intake air flow path to serve as pretreatment air thereby simplifying construction and enhancing the lifetime of the dehumidifying and desalting unit.
Description
technical field [0001] The present invention relates to methods and systems for dehumidifying interior air in offshore installations. Background technique [0002] Offshore installations, in particular offshore wind turbines, are eroded by salt and moisture among others. Specifically, salts are a problem due to their hygroscopic properties and natural ability to transport electrons in erosion reactions. [0003] While the outside of an offshore facility must be designed to withstand the elements, many facilities struggle with the harsh environment to which an offshore facility must adapt. Specifically, the combined erosive effects of salt and water must be effectively managed in modern offshore installations in order to ensure uptime and production profitability. [0004] Salt and moisture will penetrate into the interior of the offshore installation, in particular through leaks in the outer shroud of the installation, such leaks being due to construction or due to defects...
Claims
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Login to View More IPC IPC(8): F03D11/00F24F3/14
CPCF03D11/00F05B2240/94F05B2260/64F24F3/14F24F3/1423F24F2003/144F24F2003/1446Y02E10/722F03D80/00Y02E10/72B01D46/0036B01D53/06B01D53/261B01D2257/80B01D2279/35F03D80/60F24F7/065
Inventor 托马斯·伦纳·奥利森
Owner 特伯德公司