WO2004036132A1 - Method for drying boats consisting of wood materials and/or plastic materials - Google Patents
Method for drying boats consisting of wood materials and/or plastic materials Download PDFInfo
- Publication number
- WO2004036132A1 WO2004036132A1 PCT/EP2003/011336 EP0311336W WO2004036132A1 WO 2004036132 A1 WO2004036132 A1 WO 2004036132A1 EP 0311336 W EP0311336 W EP 0311336W WO 2004036132 A1 WO2004036132 A1 WO 2004036132A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- boat
- drying
- hull
- microwave
- skin
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C15/00—Storing of vessels on land otherwise than by dry-docking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C5/00—Equipment usable both on slipways and in dry docks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
Definitions
- the invention relates to a method for drying boats whose hulls are made of wood and / or plastic materials, in particular polyester materials.
- the reasons for the moisture damage are the following, constantly recurring causes, such as constant crack formation in the protective layers due to deformation of the hull under force (e.g. wave and / or wind attack, stress %), the natural aging of the protective layers, Penetration and friction from hard salt water and its waves at higher speeds, moisture in the area of the assembly seams, water vapor diffusion damage in the interior ...
- the invention has for its object to provide a method for drying boats, the hull of wood and / or plastic materials, especially polyester materials, with a significant reduction in the drying process while largely avoiding external climatic influences and precise predetermination of the completion date is guaranteed, so that a guaranteed quality of the product, a reduction of the repair obligations to the minimum and thus a considerable cost reduction are possible.
- this object is achieved by the following process steps: a. Cleaning the boat skin outside and inside, b. Carrying out a damage analysis with measurement of the moisture and / or the temperature of the material of the boat skin selectively or extensively in the initial state, c. Removal of any existing coloring or other protective layer on the boat's outer skin, d. Attaching a reflective layer to the inside of the boat skin, e. Calculation of the optimal drying process and drying of the hull by arranging one or more microwave dryers in the area of the boat's outer skin to be dried, the boat skin being precisely localized and metered with microwave energy, f. ongoing measurement and control of the temperature and the humidity of the material as well as the microwave radiation at the work place of the
- Microwave dryer during the drying process until material-specific residual moisture values are reached.
- the method according to the invention now enables the drying process to be carried out in an extremely effective and substantially shorter manner. External climatic influences such as temperature and humidity are largely eliminated.
- the finished handover after inspection and damage analysis can be calculated exactly mathematically due to the use of scientifically based measuring methods and the new process technology and can therefore be scheduled precisely to the week.
- the work performed is transparent to the customer.
- the repair obligations are reduced to the necessary minimum with guaranteed quality, so that the total time required is reduced from 6 to 8 months to a maximum of 3 weeks.
- the drying technology used is based on the use of microwave dryers, whereby the boat skin to be dried is precisely localized and defined with high-frequency microwave energy. This causes water molecules to vibrate due to their electrical charge, which leads to heating. I.e. Heat is only generated in the moist areas. Due to a vapor pressure gradient building up from the inside to the outside, the moisture can escape to the outside.
- the drying technology used only requires a solid base and is otherwise transportable in the smallest space, so that the path of the technology to the boat can be easily realized. In relation to the effect, it drives with the smallest, currently extremely low energy consumption on the boat's outer skin.
- the interior drying is carried out using condensation dryers. This conventional drying method, which was developed primarily in Northern Europe for indoor drying, has not lost its importance due to its efficiency.
- the method according to the invention can be expediently supplemented by, in particular in the event of an accident (water damage inside the boat), preventing or eliminating water saturation of parts or areas of the interior by appropriate measures, such as suctioning off the water, ventilation and condensation drying, before the Drying the hull is carried out.
- the reflection layer consists of a self-adhesive, aluminum-coated plastic film, which is applied to the inside of the boat skin. This reflects microwaves that penetrate inwards and protects the ship's electronics.
- the measurement of the moisture and / or temperature of the material of the boat hull is carried out selectively or area-wide as well as with contact or without contact.
- the microwave drying device essentially consists of a magnetron and an antenna, high-frequency electromagnetic waves generated in the magnetron being radiated onto the boat's outer skin by a funnel-shaped antenna. Radiation of the boat's outer skin that is precisely defined in terms of area can thereby be realized.
- the microwave power and / or the working frequency of the magnetron are expediently constant or adjustable.
- a relative movement between the microwave drying device and the hull can also be realized during the drying process.
- the duty cycle of the microwave drying devices expediently takes place in time cycles depending on the damage analysis carried out, the duty cycle not exceeding a limit value per time cycle.
- This limit value for the duty cycle is 10 minutes.
- the temperature of the material of the boat skin is measured after each time cycle of the switch-on period, it being ensured that this does not exceed a material-specific limit value in order to avoid damage to the boat skin depending on the material.
- This limit value for the temperature for boat skins made of polyester materials is 60 ° C. It has proven to be expedient that the boat skin is exposed to a maximum microwave radiation of 5 mW / cm 2 .
- the drying process is carried out at a residual moisture value of max. 5% moisture completed.
- the sealing is expediently carried out in the pressure spraying process using epoxy resins, but other suitable materials and processes can also be implemented.
- the performance of the services provided after the drying process has been completed is carried out using a measurement protocol for all measured values, so that a transparent and objective evaluation of the performance is possible for the benefit of all involved.
- FIG. 1 shows the partial cross section through a hull with microwave drying devices in use
- FIG. 2 shows the top view according to arrow “A” in FIG. 1.
- a sailboat In a dry dock, not shown in the rest, there is a sailboat, whose hull 1 is made of a polyester material.
- the hull 1 (see FIGS. 1 and 2) has certain moisture damage (not shown) after prolonged use in salt water and should be subjected to the drying process according to the invention.
- the boat skin 2 is first cleaned from the outside and from the inside.
- a detailed damage analysis is then carried out, e.g. B. the water absorption capacity of different materials is different.
- the degree of moisture penetration and the areas of osmosis damage are determined and analyzed using highly sensitive measuring methods and devices.
- the moisture and, if necessary, the temperature of the material of the boat skin 2 are determined and documented at certain points or in terms of area.
- the color protection layer located on the boat's outer skin 2, for. B. removed using a manual procedure. Furthermore, a reflection layer 3 consisting of aluminum-coated plastic film 3 is glued to the inside of the boat skin. I. d. R. the ship compass must be disguised separately.
- microwave drying devices 4 are brought into the prescribed position for drying the outer skin 2 of the boat using setting and fixing devices 5.
- the microwave dryers 4 can be pivoted transversely to the cross-section of the hull 1 (see FIG. 1) and / or shifted on rollers (arrow C) or adjusted in height (arrow D). In addition, they can be moved parallel to the longitudinal axis of the hull 1 (see FIG. 2) on rollers (arrow E).
- the microwave drying devices 4 consist of a magnetron (not shown) and an antenna 6.
- the magnetron high-frequency electromagnetic waves are generated in a known manner, which are emitted by the antenna 6.
- the antenna 6 expediently has a funnel shape, so that the radiation can be directed flatly onto the outer skin 2 of the boat.
- the drying process is started by switching on the microwave drying devices 4.
- the boat skin 2 to be dried is precisely localized and metered with microwave energy so that due to the build-up of the vapor pressure gradient, the moisture in the material can escape to the outside.
- This process is amplified by reflection of the microwaves on the reflection layer 3.
- the drying process is continuously monitored by multimedia, taking into account all process parameters.
- the on-time of the microwave drying devices 4 must be strictly observed in accordance with the prescribed time cycles, the maximum on-time being 10 minutes.
- the temperature of the material of the boat skin 2 is to be measured after each time cycle, it being ensured that material-specific limit values are not exceeded. For boat skins 2 made of polyester materials, this limit is 60 ° C, since polyester materials already start to decompose at 70 ° C. The material moisture and microwave radiation are also measured.
- a relative movement between the microwave drying devices 4 and the hull 1 can optionally be carried out during the drying process, if e.g. B. large areas of moisture or osmosis should be treated.
- the adjusting and fixing devices 5 are moved transversely and / or longitudinally to the longitudinal axis of the hull 1 according to the arrows B, C, D, E as required.
- the drying process can be ended at the processing point. Depending on the damage, the entire drying process can now be ended or, using the setting and fixing devices 5, a new (processing) position of the microwave drying devices 4 relative to the outer skin of the boat 2 can be set and a further monitored and controlled drying process can be initiated / carried out.
- the hull 1 is preferably sealed using epoxy resins in a pressure spray process or by another suitable process.
- a variant of the method according to the invention is used in the event of an accident (water damage inside the boat) in such a way that, before the drying of the boat hull 1 explained above, in order to minimize the damage, first of all by immediately sucking off the water, by opening all the inner hatches and claddings and by installing condensation dryers which are adapted to the interior volume of the hull 1, interior drying is carried out as possible before the water saturation of the materials / parts, since a correspondingly higher interior humidity has a significant influence on the drying process according to the invention in terms of the time required.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03769380A EP1556654A1 (en) | 2002-10-16 | 2003-10-14 | Method for drying boats consisting of wood materials and/or plastic materials |
AU2003278075A AU2003278075A1 (en) | 2002-10-16 | 2003-10-14 | Method for drying boats consisting of wood materials and/or plastic materials |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10248666.2 | 2002-10-16 | ||
DE2002148666 DE10248666C1 (en) | 2002-10-16 | 2002-10-16 | Process for drying boats made of wood and / or plastic materials |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004036132A1 true WO2004036132A1 (en) | 2004-04-29 |
Family
ID=29594641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/011336 WO2004036132A1 (en) | 2002-10-16 | 2003-10-14 | Method for drying boats consisting of wood materials and/or plastic materials |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1556654A1 (en) |
AU (1) | AU2003278075A1 (en) |
DE (1) | DE10248666C1 (en) |
WO (1) | WO2004036132A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2006200749A1 (en) * | 2000-08-24 | 2006-03-16 | University Of Tennessee Research Foundation | Halogenated selective androgen receptor modulators and methods of use thereof |
WO2006021225A1 (en) * | 2004-08-24 | 2006-03-02 | Hartwig Pollinger | Method and device for the treatment of cork oaks |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3627562A (en) * | 1968-05-20 | 1971-12-14 | Paul Hammelmann | Method of treating continuous surfaces |
US4765773A (en) * | 1987-02-27 | 1988-08-23 | Hopkins Harry C | Microwave highway paint drying apparatus |
WO1992008084A1 (en) | 1990-11-05 | 1992-05-14 | Miraku Oy | Drying procedure and apparatus |
DE9413736U1 (en) | 1994-06-14 | 1995-07-13 | Ahrens Bautechnologie Handelsg | Microwave drying and pest control system |
US5529815A (en) * | 1994-11-03 | 1996-06-25 | Lemelson; Jerome H. | Apparatus and method for forming diamond coating |
DE19544889A1 (en) | 1995-12-01 | 1997-06-05 | Detlef Steinbach | Method and arrangement for drying buildings and / or stationary components |
US5797194A (en) * | 1994-03-02 | 1998-08-25 | Microz Sweden Ab | Mobile microwave dryer |
US6245392B1 (en) * | 1999-08-27 | 2001-06-12 | Stephen J. Hillenbrand | Coater apparatus and method |
US6423954B1 (en) * | 1998-04-29 | 2002-07-23 | Zettergren Leif Goesta | Shielding method during microwave radiation drying |
-
2002
- 2002-10-16 DE DE2002148666 patent/DE10248666C1/en not_active Expired - Fee Related
-
2003
- 2003-10-14 WO PCT/EP2003/011336 patent/WO2004036132A1/en not_active Application Discontinuation
- 2003-10-14 AU AU2003278075A patent/AU2003278075A1/en not_active Abandoned
- 2003-10-14 EP EP03769380A patent/EP1556654A1/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3627562A (en) * | 1968-05-20 | 1971-12-14 | Paul Hammelmann | Method of treating continuous surfaces |
US4765773A (en) * | 1987-02-27 | 1988-08-23 | Hopkins Harry C | Microwave highway paint drying apparatus |
WO1992008084A1 (en) | 1990-11-05 | 1992-05-14 | Miraku Oy | Drying procedure and apparatus |
US5797194A (en) * | 1994-03-02 | 1998-08-25 | Microz Sweden Ab | Mobile microwave dryer |
DE9413736U1 (en) | 1994-06-14 | 1995-07-13 | Ahrens Bautechnologie Handelsg | Microwave drying and pest control system |
US5529815A (en) * | 1994-11-03 | 1996-06-25 | Lemelson; Jerome H. | Apparatus and method for forming diamond coating |
DE19544889A1 (en) | 1995-12-01 | 1997-06-05 | Detlef Steinbach | Method and arrangement for drying buildings and / or stationary components |
US6423954B1 (en) * | 1998-04-29 | 2002-07-23 | Zettergren Leif Goesta | Shielding method during microwave radiation drying |
US6245392B1 (en) * | 1999-08-27 | 2001-06-12 | Stephen J. Hillenbrand | Coater apparatus and method |
Also Published As
Publication number | Publication date |
---|---|
AU2003278075A1 (en) | 2004-05-04 |
EP1556654A1 (en) | 2005-07-27 |
DE10248666C1 (en) | 2003-12-24 |
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