EP3204564A1 - Wall dehumidification system - Google Patents

Wall dehumidification system

Info

Publication number
EP3204564A1
EP3204564A1 EP15800959.7A EP15800959A EP3204564A1 EP 3204564 A1 EP3204564 A1 EP 3204564A1 EP 15800959 A EP15800959 A EP 15800959A EP 3204564 A1 EP3204564 A1 EP 3204564A1
Authority
EP
European Patent Office
Prior art keywords
generator
impulsive
power
field
driving circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15800959.7A
Other languages
German (de)
French (fr)
Other versions
EP3204564B1 (en
Inventor
Salvatore Varsallona
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tecnova Group Srl
Original Assignee
Tecnova Group Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tecnova Group Srl filed Critical Tecnova Group Srl
Priority to PL15800959T priority Critical patent/PL3204564T3/en
Priority to SI201530946T priority patent/SI3204564T1/en
Priority to RS20191362A priority patent/RS59779B1/en
Publication of EP3204564A1 publication Critical patent/EP3204564A1/en
Application granted granted Critical
Publication of EP3204564B1 publication Critical patent/EP3204564B1/en
Priority to HRP20191928TT priority patent/HRP20191928T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/70—Drying or keeping dry, e.g. by air vents
    • E04B1/7007—Drying or keeping dry, e.g. by air vents by using electricity, e.g. electro-osmosis

Definitions

  • the present invention finds its application in the field of buildings and in particular it relates with a wall dehumidification system, for reclaiming moisture from the masonry walls of buildings and adapted to be generally applied to any structure to be sanitized.
  • Wall rising damp is a widespread phenomenon not only in old or ancient buildings but also in modern ones not having good insulation from the ground.
  • the phenomenon of rising damp is due primarily to the nature of the materials used for the masonry, generally blocks of bricks, stones, pebbles of various sizes bounded together by mixtures of absorbent materials such as sand and concrete, provided with an intrinsic microporosity which allows water to rise for effect of capillarity.
  • the rising damp is also promoted by an electrolytic process onset in humid and salty environments, whose anode is formed at the level of the environment rich in water and whose cathode can be located in the high parts of the building.
  • Dehumidification techniques using emission of electromagnetic waves are also known, for example using microwave or other frequencies selected in a more or less arbitrary way, which carry out simultaneously the desalination of masonry walls by acting directly on the ions or the salts dissolved in water.
  • dehumidification techniques use the emission of an electromagnetic field of predetermined frequency in order to counteract the effect of capillary action of the water and promote the return toward an electrode placed down.
  • EP2157491 describes a further apparatus for dehumidification of walls operating by sending electromagnetic waves having predetermined frequency.
  • AT392109 and WO2006016011 disclose masonry dehumidification systems that use electromagnetic fields with variable frequency to match the characteristics of the field to the structure to be treated.
  • the object of the present invention is to overcome the above mentioned drawbacks, by providing a dehumidification system of walls that is particularly effective and economical.
  • a particular object is to provide a dehumidification system of walls acting on the moisture present in the masonry structure in a non invasive way.
  • Still another object is to provide a dehumidification system of walls that is effective against any wall structure, regardless by its specific chemical/physical composition.
  • a wall dehumidifying system which, according with claim 1, comprises a generator of a magnetic or electromagnetic field adapted to generate and direct a magnetic or electromagnetic field on a wall structure to be dehumidified, means for voltage powering of said generator, an electronic control unit for said generator having a driving circuit supplied to said powering means and adapted to send a driving frequency signal to said generator for generating said field.
  • the control unit comprises pulse-type adjusting means adapted to control said driving circuit for generating a driving signal of the pulse type for the generation of an impulsive electromagnetic field variable in frequency.
  • the driving circuit may send an impulsive driving signal to the power stage of the generator with a frequency adjustable within a predetermined range.
  • said driving signal may be adjusted within a range between 10Hz and 10kHz.
  • the system will be able to perform a scan of the wall structure to be dehumidified at various frequencies in order to adapt the field to the specific chemical/physical composition thereof or possibly to prescind of such a composition as the field issued within an entire working cycle will be set from time to time in an optimized manner with respect to different compositions of the wall structure.
  • the adjusting means comprise a programmable clock generator adapted to generate a sequence of pulse signals having fixed width and different frequencies within said range and a programmable timer adapted to define the duty cycle of each of said pulse signals, in such a manner to preset a multiplicity of different sequences, increasing the flexibility of use of the system.
  • the adjusting means may comprise a first adjustable power feeder adapted to power said driving circuit with a variable voltage between 5V and 12V for varying the power of said field.
  • FIG. 1 is a block diagram of the system of the invention.
  • a system for dehumidifying walls is illustrated, which system may be used in restructuring, recovery or sanitization operations of buildings with any destination of use having one or more walls or other structures suffering from moisture.
  • the system may be used on any type of structure, such as walls, columns, pillars and other load-bearing elements of buildings, regardless of shape, size, materials.
  • the system As can be observed from Fig. 1, the system, generally indicated by 1, comprises a generator 2 of a magnetic or electromagnetic field E essentially consiting of a power stage 3, for example FET amplifiers, connected to a antenna 4 for emitting and targeting the field E toward the wall structure to be dehumidified.
  • a generator 2 of a magnetic or electromagnetic field E essentially consiting of a power stage 3, for example FET amplifiers, connected to a antenna 4 for emitting and targeting the field E toward the wall structure to be dehumidified.
  • the generator 2 is connected to an external voltage source, generally the net power supply to 230V AC R, through voltage powering means 5.
  • the system 1 also comprises an electronic control unit 6 of the generator 2 provided with a programmable logic with one or more control boards supplied by the same powering means 5 and provided with a driving circuit 7 adapted to send a frequency driving signal S to the generator 2 for the generation of the field E.
  • the control unit 6 also comprises adjusitng means 8 of the impulsive type adapted to control the driving circuit 7 to generate a driving signal S of the pulsed type and generate a magnetic or electromagnetic field E also impulsive and variable in frequency.
  • the driving circuit 7 will be provided with a timing circuit of the signal of
  • the driving circuit 7 will be associated with a clock generator 9 having in sequence a series of dividers adatped to provide the driving signal S at various frequencies of adjustable value within a predetermined range, preferably between 10Hz and 10kHz.
  • the clock generator 9 will be programmable and adapted to generate a sequence of pulse signals S having a fixed width at different frequencies within the above range.
  • the adjusting means 8 will also comprise a programmable timer 10 adapted to define the duty cycle of each of the pulse signals S of the predetermined sequence.
  • the timer 10 may be programmable within a time range between lmin and lOmin.
  • the control unit 6 will also comprise an internal hour-counter 11, for example of the digital type, for storing the operation times of the system in order to control the periods of work.
  • the powering means 5 comprise a first adjustable power feeder 12 for supplying the driver circuit 7 with a variable voltage between 5V and 12V to vary the power of the field E.
  • the first power feeder 12 may be associated with a second stabilized power feeder 13 that connect to the general network, possibly with the interposition of a third power feeder 14 to bring the voltage from 230V AC to 12VDC.
  • the second stabilized power feeder 13 also connects the central control unit 6 with the mains supply R to power its logic with a predetermined and constant voltage, generally with a stabilized value of 5VDC.
  • control unit 6 may be implemented with additional logic circuits or electronic cardboards, not shown, which shall perform auxiliary functions not described in more detail as non- limiting for the present invention.
  • the structure of the generator 2 may vary too, depending on the needs and according to methods known to the skilled person.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electrochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Drying Of Gases (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

A wall dehumidification system comprises a generator (2) for a magnetic or electromagnetic field (E) to be directed toward a wall structure to be dehumidified, means (5) for voltage powering the generator (2), an electronic control unit (6) of the generator (2) having a driving circuit (7) supplied by powering means (5) and adapted to send to the generator (2) a frequency driving signal (S) for generating the field (E), impulsive adjusting means (8) adapted to control the driving circuit (7) for generating a pulse-type driving signal (S) for emitting an impulsive field (E) with variable frequency. The adjusting means (8) comprise a programmable clock generator (9) adapted to generate a sequence of a impulsive signals (S) having fixed width at different frequencies inside the range and a programmable timer (10) adapted to define the duty cycle of each impulsive signal (S).

Description

WALL DEHUMIDIFICATION SYSTEM
Description
Technical Field
The present invention finds its application in the field of buildings and in particular it relates with a wall dehumidification system, for reclaiming moisture from the masonry walls of buildings and adapted to be generally applied to any structure to be sanitized.
State of the art
Wall rising damp is a widespread phenomenon not only in old or ancient buildings but also in modern ones not having good insulation from the ground.
The presence of moisture in the walls, in addition to making unhealthy the related local because of the possible occurrence of mold or other spores, with time may cause serious damage to the building structures, until the collapse thereof.
The phenomenon of rising damp is due primarily to the nature of the materials used for the masonry, generally blocks of bricks, stones, pebbles of various sizes bounded together by mixtures of absorbent materials such as sand and concrete, provided with an intrinsic microporosity which allows water to rise for effect of capillarity.
The rising damp is also promoted by an electrolytic process onset in humid and salty environments, whose anode is formed at the level of the environment rich in water and whose cathode can be located in the high parts of the building.
The dehumidification techniques currently used are not useful to counteract this effect but they are addressed to eliminate moisture in different ways that do not always prove to be efficient and economical.
Some solutions involve the injection of special water-reactive resins or other types of water- repellent barrier, in correspondence of infiltration points so as to seal permanently the same. However such techniques are low efficient in the case of generalized and not localized infiltration, as in most of the cases in which a structure is affected by rising damp.
Other techniques use electrosmosis active barriers, physical barriers at the base of the wall, chemical or physical cutting barriers, ventilation techniques using cartridges or holes, aerating crawl spaces, evaporating plasters.
However, all the above mentioned techniques have the drawback of being very invasive and not always feasible, particularly in contexts of particular value.
Dehumidification techniques using emission of electromagnetic waves are also known, for example using microwave or other frequencies selected in a more or less arbitrary way, which carry out simultaneously the desalination of masonry walls by acting directly on the ions or the salts dissolved in water.
Finally, other dehumidification techniques use the emission of an electromagnetic field of predetermined frequency in order to counteract the effect of capillary action of the water and promote the return toward an electrode placed down.
An example of this technique of dehumidification is disclosed in EP0928856, in which an emitting apparatus is used to generate a frequency of 141 KHz.
EP2157491 describes a further apparatus for dehumidification of walls operating by sending electromagnetic waves having predetermined frequency.
However, such solutions, although less invasive, have not proved to be entirely effective because of an arbitrary choice or otherwise unique of the irradiation frequency that does not take into account the variability of the dielectric constant of the wall, which can be influenced by several factors such as the chemical/physical composition of the wall, the presence of the reinforcing grid in reinforced concrete walls or other factors not determinable in an immediate manner or by visual analysis.
AT392109 and WO2006016011 disclose masonry dehumidification systems that use electromagnetic fields with variable frequency to match the characteristics of the field to the structure to be treated.
A further system of this type is described in DEI 9800596, wherein it is also provided sending signal sequences having different lengths which are periodically varied, keeping unchanged the frequency for the various sequences.
These solutions do not provide the possibility of programming the duty cycle of the pulse signals of each sequence, not allowing the programming of scan cycles of the structure to be dehumidified to regulate the emissions of the system as a function of the specific characteristics of the wall structure.
Scope of the invention
The object of the present invention is to overcome the above mentioned drawbacks, by providing a dehumidification system of walls that is particularly effective and economical. A particular object is to provide a dehumidification system of walls acting on the moisture present in the masonry structure in a non invasive way.
Still another object is to provide a dehumidification system of walls that is effective against any wall structure, regardless by its specific chemical/physical composition.
These objects, as well as others which will appear more clearly hereinafter, are achieved by a wall dehumidifying system which, according with claim 1, comprises a generator of a magnetic or electromagnetic field adapted to generate and direct a magnetic or electromagnetic field on a wall structure to be dehumidified, means for voltage powering of said generator, an electronic control unit for said generator having a driving circuit supplied to said powering means and adapted to send a driving frequency signal to said generator for generating said field.
The control unit comprises pulse-type adjusting means adapted to control said driving circuit for generating a driving signal of the pulse type for the generation of an impulsive electromagnetic field variable in frequency.
Conveniently, the driving circuit may send an impulsive driving signal to the power stage of the generator with a frequency adjustable within a predetermined range.
Preferably, said driving signal may be adjusted within a range between 10Hz and 10kHz.
Thanks to this particular combination of features, the system will be able to perform a scan of the wall structure to be dehumidified at various frequencies in order to adapt the field to the specific chemical/physical composition thereof or possibly to prescind of such a composition as the field issued within an entire working cycle will be set from time to time in an optimized manner with respect to different compositions of the wall structure.
Moreover, the adjusting means comprise a programmable clock generator adapted to generate a sequence of pulse signals having fixed width and different frequencies within said range and a programmable timer adapted to define the duty cycle of each of said pulse signals, in such a manner to preset a multiplicity of different sequences, increasing the flexibility of use of the system.
Suitably, the adjusting means may comprise a first adjustable power feeder adapted to power said driving circuit with a variable voltage between 5V and 12V for varying the power of said field.
Advantageous forms of the invention are obtained according to the dependent claims.
Brief description of the drawings
Further features and advantages of the invention will become more apparent in light of the detailed description of a preferred but not exclusive embodiment of wall dehumidifying system of the invention, illustrated by way of non-limiting example with the aid of the accompanying drawing, wherein:
FIG. 1 is a block diagram of the system of the invention.
Best mode of carrying out the invention
With reference to the accompanying drawings, a system for dehumidifying walls is illustrated, which system may be used in restructuring, recovery or sanitization operations of buildings with any destination of use having one or more walls or other structures suffering from moisture.
The system may be used on any type of structure, such as walls, columns, pillars and other load-bearing elements of buildings, regardless of shape, size, materials.
As can be observed from Fig. 1, the system, generally indicated by 1, comprises a generator 2 of a magnetic or electromagnetic field E essentially consiting of a power stage 3, for example FET amplifiers, connected to a antenna 4 for emitting and targeting the field E toward the wall structure to be dehumidified.
The generator 2 is connected to an external voltage source, generally the net power supply to 230V AC R, through voltage powering means 5.
The system 1 also comprises an electronic control unit 6 of the generator 2 provided with a programmable logic with one or more control boards supplied by the same powering means 5 and provided with a driving circuit 7 adapted to send a frequency driving signal S to the generator 2 for the generation of the field E.
The control unit 6 also comprises adjusitng means 8 of the impulsive type adapted to control the driving circuit 7 to generate a driving signal S of the pulsed type and generate a magnetic or electromagnetic field E also impulsive and variable in frequency.
In particular, the driving circuit 7 will be provided with a timing circuit of the signal of
ON/OFF type applied to the power stage 3 for the generation of the pulse signal S.
Specifically, the driving circuit 7 will be associated with a clock generator 9 having in sequence a series of dividers adatped to provide the driving signal S at various frequencies of adjustable value within a predetermined range, preferably between 10Hz and 10kHz.
The clock generator 9 will be programmable and adapted to generate a sequence of pulse signals S having a fixed width at different frequencies within the above range.
The adjusting means 8 will also comprise a programmable timer 10 adapted to define the duty cycle of each of the pulse signals S of the predetermined sequence.
In particular, the timer 10 may be programmable within a time range between lmin and lOmin.
The control unit 6 will also comprise an internal hour-counter 11, for example of the digital type, for storing the operation times of the system in order to control the periods of work. The powering means 5 comprise a first adjustable power feeder 12 for supplying the driver circuit 7 with a variable voltage between 5V and 12V to vary the power of the field E.
The first power feeder 12 may be associated with a second stabilized power feeder 13 that connect to the general network, possibly with the interposition of a third power feeder 14 to bring the voltage from 230V AC to 12VDC. The second stabilized power feeder 13 also connects the central control unit 6 with the mains supply R to power its logic with a predetermined and constant voltage, generally with a stabilized value of 5VDC.
The control unit 6 may be implemented with additional logic circuits or electronic cardboards, not shown, which shall perform auxiliary functions not described in more detail as non- limiting for the present invention.
The structure of the generator 2 may vary too, depending on the needs and according to methods known to the skilled person.
From above it appears evident that the system according to the invention reaches the intended objects.
The system according to the invention is susceptible of numerous modifications and variations, all falling within the inventive concept expressed in the accompanying claims. All the details may be replaced with other technically equivalent elements, and the materials may be different according to requirements, without departing from the scope of the present invention.
Although the system has been described with particular reference to the attached figures, reference numbers used in the description and in the claims are used to improve the intelligence of the invention and do not constitute any limitation of the claimed scope.

Claims

Claims
1. A wall dehumidification system, comprising:
a generator (2) for a magnetic or electromagnetic field (E) to be directed toward a wall structure to be dehumidified;
- means (5) for voltage powering said generator (2);
an electronic control unit (6) of said generator (2) having a driving circuit (7) supplied by said powering means (5) and adapted to send to said generator (2) a frequency driving signal (S) for generating said field (E);
impulsive adjusting means (8) adapted to control said driving circuit (7) for generating a pulse-type driving signal (S) for emitting an impulsive field (E) with variable frequency; characterized in that said adjusting means (8) comprise a programmable clock generator (9) adapted to generate a sequence of a impulsive signals (S) having fixed width at different frequencies inside said range and a programmable timer (10) adapted to define the duty cycle of each of said impulsive signals (S).
2. System as claimed in claim 1, characterized in that said generator (2) comprises a power stage (3) connected to an emitting antenna (4) for said field (E).
3. System as claimed in claim 2, characterized in that said driving circuit (7) is of the ON/OFF type and is applied to said power stage (3) for generating said impulsive signal (S).
4. System as claimed in claim 3, characterized in that said driving circuit (7) is adapted to send said impulsive signal (S) to said power stage (3) with an adjustable frequency inside a predetermined range.
5. System as claimed in claim 4, characterized in that the frequency of said driving signal (S) is adjustable in a range between 10Hz and lOkHZ.
6. System as claimed in claim 1, characterized in that said timer (10) is programmable inside a time range between lmin and lOmin.
7. System as claimed in any preceding claim, characterized in that said power supply means (5) comprise a first adjustable power feeder (12) adapted to power said driving circuit (7) with a variable voltage to vary the power of said field (E).
8. System as claimed in claim 7, characterized in that said voltage is variable between 5V and 12V.
9. System as claimed in claim 8, characterized in that said powering means (5) comprise a stabilized second power feeder (13) adapted to connect said central unit (6) to the electricity mains (R) to power the logic thereof with a predetermined and constant voltage.
EP15800959.7A 2014-10-08 2015-10-08 Wall dehumidification system Active EP3204564B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL15800959T PL3204564T3 (en) 2014-10-08 2015-10-08 Wall dehumidification system
SI201530946T SI3204564T1 (en) 2014-10-08 2015-10-08 Wall dehumidification system
RS20191362A RS59779B1 (en) 2014-10-08 2015-10-08 Wall dehumidification system
HRP20191928TT HRP20191928T1 (en) 2014-10-08 2019-10-23 Wall dehumidification system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPA20140016 2014-10-08
PCT/IB2015/057708 WO2016055969A1 (en) 2014-10-08 2015-10-08 Wall dehumidification system

Publications (2)

Publication Number Publication Date
EP3204564A1 true EP3204564A1 (en) 2017-08-16
EP3204564B1 EP3204564B1 (en) 2019-07-31

Family

ID=52101454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15800959.7A Active EP3204564B1 (en) 2014-10-08 2015-10-08 Wall dehumidification system

Country Status (11)

Country Link
EP (1) EP3204564B1 (en)
CO (1) CO2017004518A2 (en)
ES (1) ES2750577T3 (en)
HR (1) HRP20191928T1 (en)
MX (1) MX2017004479A (en)
PE (1) PE20170799A1 (en)
PL (1) PL3204564T3 (en)
PT (1) PT3204564T (en)
RS (1) RS59779B1 (en)
SI (1) SI3204564T1 (en)
WO (1) WO2016055969A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700060063A1 (en) * 2017-06-01 2018-12-01 Wall & Wall Sagl METHOD AND DEVICE TO DEHUMIDIFY THE STRUCTURE OF A BUILDING

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT392109B (en) 1986-09-05 1991-01-25 Wigelbeyer Helmut Apparatus for influencing the electromagnetic earth field, in particular for the purpose of drying masonrywork
DE19800597A1 (en) 1998-01-09 1999-07-22 Hildegard Berger Device for dehumidifying and / or desalting buildings
DE19800596A1 (en) 1998-01-09 1999-07-22 Hildegard Berger Method and device for dehumidifying and / or desalting buildings
WO2006016011A1 (en) 2004-07-08 2006-02-16 Bernard Stumpp Device and method for stopping capillary rise of water and moisture
IT1391107B1 (en) 2008-08-19 2011-11-18 Leonardo Solutions S R L SYSTEM FOR THE CONTROL AND / OR WALL DEHUMIDIFICATION

Also Published As

Publication number Publication date
EP3204564B1 (en) 2019-07-31
RS59779B1 (en) 2020-02-28
MX2017004479A (en) 2018-02-09
PE20170799A1 (en) 2017-07-04
SI3204564T1 (en) 2020-06-30
HRP20191928T1 (en) 2020-02-21
PT3204564T (en) 2019-10-29
ES2750577T3 (en) 2020-03-26
PL3204564T3 (en) 2020-03-31
WO2016055969A1 (en) 2016-04-14
CO2017004518A2 (en) 2017-05-10

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