EP0878672A1 - Belüftungssystem mit Lufteinspritzung für einen besseren Zug - Google Patents

Belüftungssystem mit Lufteinspritzung für einen besseren Zug Download PDF

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Publication number
EP0878672A1
EP0878672A1 EP98401132A EP98401132A EP0878672A1 EP 0878672 A1 EP0878672 A1 EP 0878672A1 EP 98401132 A EP98401132 A EP 98401132A EP 98401132 A EP98401132 A EP 98401132A EP 0878672 A1 EP0878672 A1 EP 0878672A1
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EP
European Patent Office
Prior art keywords
air
supply system
air supply
main
duct
Prior art date
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Granted
Application number
EP98401132A
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English (en)
French (fr)
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EP0878672B1 (de
Inventor
André Amphoux
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Individual
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Individual
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Publication date
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/26—Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/003—Ventilation in combination with air cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/004—Natural ventilation using convection

Definitions

  • the invention relates to an air supply system with the interior of at least one room in a building.
  • This system has a main conduit extending substantially vertically, the downstream end of which is closed and the upstream end leads to a first air source.
  • the main duct has at least one mouth air intake, mounted on the main duct between its upstream and downstream ends and leading to a respective room.
  • the system also includes at least a first additional air injection device for both pulls, positioned towards the upstream end of the duct main.
  • This first injection device has the function to drive, towards the downstream end of the main duct, air from the first air source.
  • This training is activated by an air induction additional.
  • Such a system can also include means to filter and / or treat the air coming from the first source of air, these means being arranged towards the upstream end of the main conduit.
  • This embodiment of the injection device may also include means for selective control of the operation of the different nozzles and possibly a or several venturi-shaped walls, placed downstream injection nozzles.
  • Said part is in the form of a sleeve, forming an interior air passage additional and comprising a plurality of grooves recessed extending over its outer surface, from a inner free edge, up to an area peripheral.
  • the hollow grooves have the function of define, with the pipe section, channels for the introduction of additional air.
  • peripheral zone has the function of define with said section of conduit a space of collect additional air.
  • the piece has a first crown-shaped part, which defines the grooves and includes the peripheral area, and a second part forming a support, the first part being mounted on the second part.
  • the duct section has a first portion coming opposite to and close to the outer surface of the part comprising the grooves, so as to form channels for the introduction of additional air; and an second portion, facing away from the area peripheral to form, between the outer surface corresponding piece and said second portion, a annular space, forming air collection chamber additional.
  • At least one air introduction orifice is provided on the second portion, so as to lead into said bedroom.
  • Air supply means communicate with the collection chamber through the orifice.
  • the second part of the play is introduced in the main duct downstream of a second section making part of said main duct.
  • the invention also relates to an installation for natural ventilation of at least one room of a building, comprising an air supply system to the interior of said part, as just described, and an air extraction system from said same room.
  • the installation also includes a second additional air injection device, substantially identical to the first injection device in the system air intake, and positioned towards the downstream end of the main column.
  • the air extraction system can also have, spaced a certain distance from the end downstream of the main column, a static vacuum cleaner or statomechanics.
  • the first air source of the air supply system may be separate or located in the evacuation area, into which the main column opens.
  • the installation may include further a second column surrounding the column main, and opening on the one hand into the area on the other hand, in a supply pipe, connected to the main duct of the air supply system; the space between the main column and the second column receiving air from the area which is then entrained in the pipe then the main conduit of the supply system of air.
  • the second embodiment of the installation of the invention -which includes the second column- also has the advantage that air from the evacuation zone can be heated naturally, by its contact with the main column, during its passage between the second column and the main column in the direction of the supply pipe.
  • Figure 1 is a schematic view illustrating a installation for the natural ventilation of several parts of a building, according to a first mode of realization of the invention.
  • FIGS 2 and 3 schematically represent two variants of air injection device additional.
  • Figures 4 and 5 show two variants of additional air injection means, which can be used in the injection device of figure 2.
  • Figure 6 is a schematic view illustrating an installation for natural ventilation at least one room in a building, following a second embodiment of the invention.
  • the invention firstly relates to a air supply system, referenced as 1 in FIGS. 1 and 6, inside at least one room 2 of a building 3, for example residential housing.
  • air means natural air or any other gaseous fluid.
  • Figures 1 and 6 schematically represent a part of a building 3 with several rooms 2 arranged on several floors 2a, 2b.
  • the air supply system 1 comprises a duct main 4, extending substantially vertically, at across the building from one floor 2a to another floor 2b, and between two neighboring rooms 2 on the same floor 2a, 2b.
  • the downstream end 4a of the main duct 4 is thus located near the upper part 3b of the building 3, and is closed.
  • the upstream end 4b of the main conduit is located towards the lower part 3a of building 3 and leads to a first air source 5 such as by example a specific part.
  • the main duct 4 has a section substantially circular transverse in the modes of embodiment shown, with the exception of Figure 4, where the section is substantially square.
  • One or more air intake vents 6 are mounted on the main duct 4, substantially next to each room 2.
  • these air intake vents 6 correspond respectively at the free end of a conduit 6a, of the type shunt, angled, and a portion of which extends substantially parallel to the main duct 4 substantially following the height of a room 2.
  • the portion of the conduit 6a, which is mounted in the nozzle on the main duct 4, is in turn substantially perpendicular to the duct 4.
  • the air from the first air source 5 is introduced naturally in main duct 4 from its upstream end 4b toward its downstream end 4a, and is thus distributed in each room 2, via the vents inlet 6.
  • At least a first device of additional air injection 7 is positioned towards the upstream end 4b of the main conduit 4.
  • the first injection device 7 is arranged downstream and close to the first air source 5.
  • the air flow introduced into rooms 2 will be thus activated, without increasing the power injection from the first air source 5.
  • the first air injection device 7 comprises a section of conduit 8, a first of which end 8a is arranged and opens towards the end upstream 4b of the main conduit 4, and the second of which end 8b leads to a second air source 9.
  • This section of conduit 8 is thus mounted in connection on the main duct 4 towards its upstream end 4b.
  • At least one injection pipe 10 opens out from a leaves at 10a, in the section of conduit 8, towards its first end 8a, and on the other hand, at 10b, inside the main duct 4.
  • this is connected to at least one nozzle injection 11 or the like.
  • the nozzle (s) 11 are thus located inside from main duct 4 and can optionally be worn by him.
  • the duct (s) injection nozzles 10 are located substantially upstream of the nozzles 11 so as not to hinder the flow of drive air from these.
  • the injection pipe 10 extends substantially horizontally and has only a single nozzle 11.
  • This nozzle 11 is located substantially along the axis D of the main duct 4. Its free end, through which additional air is ejected, is directed to the downstream end 4a of the main duct 4.
  • the first and second air sources 5, 9 are separate.
  • Air from the second air source 9 flows inside the section of conduit 8 from its second end 8b to end 10a of the conduit injection 10, along arrow F2.
  • a plurality of nozzles can be provided injection 11 located in the immediate vicinity of this axis D.
  • This plurality of injection nozzles 11 is found substantially either in the same transverse plane of the duct 4 (not shown), or in several transverse planes, as shown in Figure 5.
  • the transverse nozzle planes comprise an upstream plane P 1 and a downstream plane P 2 .
  • this plurality comprises one or more central nozzles 11 'located in or at proximity to the D axis and / or one or more nozzles 11 "peripherals located near the wall 4c of the conduit 4 and / or a plurality of median nozzles (not shown) located between the axis D and the wall 4c.
  • peripheral 11 "and median nozzles are, in an achievement, regularly distributed around axis D, either discreetly or continuously.
  • these nozzles can be arranged in the form of crowned.
  • the different nozzles 11, 11 ', 11 are arranged in relation to each other so as not to not substantially obstruct the air passage which comes from upstream from conduit 4. Indeed, it is desirable that the air flow is not too disturbed by the presence of the injection nozzles.
  • the injection nozzles 11 are arranged in rows and columns and are carried by a perforated plate located in the conduit 4 while being carried by it.
  • This plate is either flat, or curved.
  • the injection device 7 includes generally selective control means (not shown) of the operation of the different nozzles. In indeed, it is not necessarily mandatory that all nozzles operate continuously and the same way.
  • the physical characteristics of the drive air flow injected by the different nozzles 11 such as flow, beam speed or aperture are the same or neighbors.
  • the injection device 7 may include means for adjusting these physical characteristics.
  • the spacing between the different injection nozzles 11 and the downstream end 4a of the conduit 4 is either identical or differentiated according to the nozzles 11 in based on the requirements for proper operation.
  • This spacing is either constant over time, be variable.
  • one or some nozzles are sliding adjustable parallel to the axis D as described below.
  • the space downstream of the nozzles is free.
  • FIG. 2 there may be provided a or several venturi-shaped walls 13 placed downstream injection nozzles 11 and associated with them.
  • a shaped wall may be provided venturi adjoining the wall 4c of the duct 4 (not shown) or / and a venturi-shaped wall for one or several injection nozzles of the same kind, such as than central ( Figure 2), peripheral or median.
  • conduit 4 can be provided in the conduit 4, downstream nozzles 11, a diffuser (not shown) allowing training air to have an appropriate laminar flow.
  • the injection nozzles 11 or equivalent can also be subject to different variations of production.
  • an injection nozzle 11 can be chosen to provide an injection flow in the form of narrow beam or in the form of a broad beam or in spiral jet shape.
  • the axis of the flow of gaseous drive fluid from a nozzle 11 can be either fixed or movable. In the first case, this axis is either parallel to the axis D ( Figures 2, 5 and 6), either inclined relative to it. In the second case, the injection device 7 is provided with means for moving the axis of the movable nozzles and the means of controlling these means of movement (not represented).
  • the injection device 7 also includes means for modulating the flow rate and / or the speed of the flow of the driving air as a function requirements.
  • modulation means include means for controlling the initiation of the injection of the gaseous fluid such as clock, temperature probe, pressure switch or hydrostatic probe.
  • the one or more injection nozzles 11 have a generally fixed position in the conduit 4, at least as regards their spacing by relative to the axis D of said conduit 4.
  • At least one or some nozzles are mounted adjustable to sliding parallel to this axis D between two positions extremes respectively distal and proximal.
  • the device injection means 7 includes sliding guide means injection nozzle (s) 11, which are adjustable to sliding.
  • the device also includes means drive nozzles and control means of said training means.
  • the nozzles can be mounted on sections of pipes slidably mounted one inside the other.
  • the nozzles can be carried by a system such as a deformable parallelogram while being joined to the injection pipe 10 by flexible pipes.
  • the injection device 7 has a single nozzle 11 which extends along the axis D of the duct 4, of section substantially square transverse.
  • the nozzle 11 is held in a fixed position at the interior of the main duct 4 by means of parts forming springs 14a and 14b, rigidly fixed to the walls 4c of the main duct 15.
  • springs 14a, 14b are respectively in the form of a rod, for example metallic, partially wound, towards its center, around the body of the nozzle 11.
  • each of the rods 14a, 14b has a length substantially equal to the distance between two opposite walls 4c of the duct main -or to the diameter of the duct 4 in the case where this would have a circular cross section.
  • a part 10a of the injection pipe 10 extends substantially perpendicular to the general direction of the nozzle 11, and therefore of the axis D, along a diagonal D 'of the section square cross section of the duct 4.
  • This part of the injection duct 10a is connected, on the side opposite nozzle 11, on the one hand to a second part 10b, opening into the section of conduit 8, as this has been indicated previously; and on the other hand to a tube 16 extending substantially parallel to the axis D.
  • the tube 16 is hollow and connected to a lever 17, outside the main duct 4.
  • a cable is arranged, connected on the one hand to the lever 17, and on the other hand at a respective end 15 of each rod 14a, 14b.
  • the tension of cable 18 will bring back the two rods 14a and 14b towards each other, in their first position extreme, i.e. substantially parallel to the first part of the injection pipe 10a.
  • the nozzle 11 will then be free to any axial, radial or other displacement.
  • the rods 14a and 14b exert one by compared to each other movements similar to the two branches of a pair of scissors.
  • Locking means allow the blocking of the lever 17 in each of the extreme positions.
  • rigid fixing device of a nozzle which has just been described, may well be suitable for other types of nozzles than those shown in Figure 4, and to other main conduits 4 of section different cross, as circular as shown previously.
  • the tube 16 has several hoses mounted to slide, one in the other, which would make it possible to adjust the nozzle (s) 11 to sliding parallel to the D axis, as shown previously.
  • the first injection device 7 comprises, towards the second end 8b of the duct section 8 and downstream of the second air source 9, successively means for additional air drive production 19, such that for example motor means (fans or analogues), and / or means 20 for filtering and / or treating additional air, and / or means 21 allowing the heating or cooling the additional air.
  • motor means fans or analogues
  • / or means 20 for filtering and / or treating additional air
  • / or means 21 allowing the heating or cooling the additional air.
  • the means 19, 20 and 21 are of the type used conventionally in the air exhaust devices of prior art.
  • These means 22 can for example be arranged at inside the main duct 4, upstream of the first end 8a of the duct section 8 and therefore means injection 12.
  • the injection device 7 comprises a section of conduit 23 forming part of the main conduit 4 and a room 24 surrounded by the main duct 4, and positioned, coaxially, upstream of a part end 23a of the section of conduit 23.
  • Said part 24 is in the form of a hollow sleeve, of longitudinal axis L, and forming a passage interior 24 'for air from the first air source 5.
  • the sleeve 24 is formed by two adjoining hollow parts 24a and 24b and coaxial.
  • the first part 24a is formed by a surface inner 25 and an outer surface 27 extending along the axis L.
  • the inner surface 25 has a section constant transverse, substantially circular. She thus has a substantially cylindrical shape.
  • the peripheral wall 26 of the sleeve has a certain thickness, not constant, along the axis L.
  • the outer surface 27 has a substantially frustoconical shape.
  • the surface outer 27 is inclined relative to the surface inner 25, or relative to the longitudinal axis L, at an angle between about 5 ° and 30 °, and preferably around 10 °.
  • This outer surface 27 is thus delimited on the one hand by an extreme free edge of small section, referenced in 27a, and on the other hand, by a large edge section, referenced in 27b.
  • the outer surface 27 comprises, according to the direction L of the grooves 28, extending from the edge from small section 27a to a peripheral zone 27c, excluded, itself delimited by the edge of large section 27b.
  • the grooves 28 are substantially axial in the present case. They can also be helical, or of any other form.
  • the peripheral zone 27c is substantially smooth. We could also provide that it also includes splines 28.
  • This peripheral zone 27c extends over approximately one quarter to one eighth, preferably 1 / 6th of the height - counted along the axis L- of the first part 24a, at from the edge of large section 27b.
  • the grooves 28 are regularly arranged on the outer surface of the sleeve 24 around its axis L and are large enough to be substantially neighboring.
  • the second part 24b of room 24 is adjacent and coaxial with the first, on the side opposite the edge of small section 27a.
  • the second part 24b is adjoining the peripheral zone 27c by the edge 27b.
  • the sleeve 24 is in one piece.
  • first and the second parts 24a, 24b are separate and assembled rigidly to each other.
  • the second part 24b presents, in the extension of the cylindrical inner surface 25, a interior surface 30 of the same shape over about a quarter to an eighth, and more specifically 1 / 6th, of its height - counted along the axis L- from edge 27b, then from substantially frustoconical shape.
  • the large base 30b of this interior surface tapered 30 is farthest from the surface cylindrical 25 along the axis L.
  • the surface interior 30 of the second part 24b either of form frustoconical from edge 27b.
  • the small base 30a of this frustoconical interior surface 30 would correspond thus at the edge of the cylindrical inner surface 25.
  • the surface frustoconical interior 30 of the second part 24b has an inclination to the surface inner cylindrical 25, and therefore to the axis L, included between approximately 10 ° and 40 °, in particular of the order of 25 °.
  • the outer surface 31 of the second part 24b has a substantially circular section, of diameter greater than that of the outer surface 27 of the first part 24a. More specifically, the surface outer 31 has a substantially cylindrical shape.
  • the outer surface 31 has a radial offset 32 towards the outside, relative to the outer surface 27.
  • This radial step 32 thus substantially forms the boundary between the first and second parts 24a, 24b.
  • This radial recess 32 includes means 32a allowing the attachment of an element such as a section of leads for example.
  • These fixing means 32a are materialized by at minus one orifice, for example tapped, formed in the thickness of the second part 24b and extending substantially parallel to the axis L, from the radial offset 32.
  • This orifice is adapted to receive an element of substantially complementary shape, such as a screw.
  • Ports 32b of the same type extending substantially perpendicular to the L axis and adapted to receive for example a screw for fixing a part complementary on the lower extreme part of the second part 24b.
  • the part 24 is for example made of metal.
  • At least the first part 24a of room 24 comprising the grooves 28 is embedded inside the end portion 23a of the duct section.
  • This assembly is carried out rigidly but removable, for example using bolts or strapping, or the like.
  • the assembly is carried out so that the part 24 extends coaxially with the section of conduit 23.
  • the pipe section 23 comprises at least two portions 33, 35 whose walls, both internal and external, are substantially smooth and straight.
  • the first portion 33 is opposite and close to the outer surface 27 of the part 24, comprising the grooves 6, so as to form channels for the introduction of additional air, between two adjacent flutes.
  • the second portion 35, adjoining the first 33, is opposite and removed from the peripheral zone 27c, so as to form between them an annular space forming an additional air collection chamber 36, peripheral.
  • the second portion 35 forms an extreme part of the section of conduit 23a.
  • the duct section 23 has a section substantially circular.
  • the first portion 33 of the section of conduit 23a has a substantially frustoconical shape, the small base is located substantially opposite the free edge 27a of the part 24, and whose large base is located substantially opposite the limit between the grooves 28 and the zone device 27c.
  • the second portion 35 of the section of conduit 23 has a substantially cylindrical shape, a outward radial shoulder 33a forming the junction between the first 33 and the second 35 portions.
  • the section of the second portion 35 is by consequent of dimension greater than that of the first portion 33.
  • the space separating the second portion 35 of the first part 24a is larger than that separating the first portion 33 of the first part 24a.
  • the space provided between the first portion 33, respectively the second portion 35, and the part 24, can be adjusted by interposing shims (not shown) between the radial offset 32 and the free end 35a of the duct section 23.
  • the collection chamber 36 is in communication with air supply means 37, such as at least one pipe, connected to the second portion 35, via at least one orifice, opening into said chamber 36.
  • air supply means 37 such as at least one pipe
  • the means air intake 37 are located substantially at the level of the radial offset 32.
  • the air supply means 37 are connected to a second air source 9, separate, in this case, from the first air source 5.
  • the duct section 23 is extended from the first portion 33, on the side opposite the second portion 35, by a portion of free section 34.
  • This portion of free section 34 has a substantially frustoconical shape, of which the small section 34a adjoins the first portion 33 and the large section 34b is located on the opposite side from the part 24.
  • the small section 34a is thus identical and combined with the small section of the first portion 33.
  • the free section portion 34 is formed in one piece with the pipe section 23.
  • At least part of the second part 24b of the part 24 is embedded in a second section of conduit 38 connected and coaxial to the main duct 4.
  • means 22 for filtering and / or process the air from the first source 5, are interposed between the second section 38 and the conduit main 4.
  • This intermediate piece 39 surrounds the first part 24a of the part 24, comprising the grooves 28, and at least the first portion 33 of the duct section 23.
  • the intermediate piece 39 surrounds, along the axis L, at least part of the portion of free section 34, the first portion 33, the second portion 35, at least part of the second part 24b of the part 24, until it comes into substantial abutment against the second section 38.
  • the intermediate piece 39 has two adjoining sections, substantially cylindrical shape.
  • the junction of the two sections 39a and 39b is performed at the radial offset 32.
  • the additional air, from the second source 9, is introduced via the supply duct 37, inside the collection 36.
  • This additional air is then routed into the main duct 4 via the channels formed by means of grooves 28 and formed between the first portion of section 33 and the first part 24a of the part 24.
  • the additional gaseous fluid can be injected through the grooves at a speed between about 20 and 160 meters per second, which considerably increases the speed of training the initial look.
  • the invention in a second step, relates to a installation for natural ventilation of at least one room 2 of a building 3.
  • This installation represented according to two variants in Figures 1 and 6, includes a system air supply 1, of the type defined above, allowing introducing air inside a room 2 at less, as noted above; and a system extracting air 40 from said part 2.
  • the air extraction system 40 comprises a column main 41 extending substantially vertically, and separate from main duct 4 of the system air supply 1.
  • each part 2 are located, on the one hand the main conduit 4, and on the other hand, the main column 41.
  • the column main 41 has a cross section substantially circular.
  • the downstream end 41a of the main column leads to an evacuation zone 42.
  • This evacuation zone 42 is located outside of building 3.
  • At least one extraction mouth 43 is mounted in tapping on the main column 41, between the end upstream 41b and the downstream end 41a.
  • Each extraction mouth 43 opens onto a respective room 2.
  • the extraction vents 43 are of the same type as the air intake vents 6 which have been described previously with respect to the air supply system 1.
  • a second air injection device additional 44 is mounted towards the downstream end 41a of the main column 41.
  • this second injection device air is placed outside the building 3.
  • This second air injection device 44 is substantially identical to the first injection device 7, two variants of which have been described previously, in reference to Figures 2 and 3.
  • the air extraction system 40 further comprises, spaced at a certain distance from the downstream end 41a of the main column 41, a static vacuum cleaner or statomechanics 45.
  • the air extraction system 40 may not have the second injection device 44 and / or the vacuum cleaner 45.
  • a static vacuum cleaner such as 45, or a statomechanical or dynamic vacuum cleaner, can be many variants.
  • the static vacuum cleaner 45 is of the type comprising a lower part 46, upper part 47 coaxial axis 48. These lower parts 46 and upper 47 are of revolution around this axis, and have a diameter identical or substantially the same exterior.
  • the two lower parts 46 and upper 47 are separated from each other to provide a free space 49 having in axial section a general shape of venturi.
  • the lower parts 46 and 47 are rigidly associated with each other, along the axis 48, by means of reciprocal securing spacers 50.
  • these spacers 50 are under the form of flat profiles, these are radial planes for avoid excessive wind catch.
  • the main column 41 can form a diffuser in the lower part 46.
  • the axis 48 is coaxial with the axis L of the main column 41. In other embodiments not shown, axis 48 can be slightly inclined with respect to the L axis and with respect to the vertical.
  • the lower part 46 comprises, in the illustrated embodiment, an upper wall 52 and a bottom wall 53.
  • Both the upper wall 52 and the lower wall 53 have a general frustoconical shape.
  • the small base 54 of the upper wall 52 is turned towards the part upper 47 and space 49.
  • the large base 55 of the wall upper 52 faces the main column 41 and it is common with the large base of the lower wall 53 whose small base is turned towards the column main 41.
  • the upper 47 has a lower wall 56 and an upper wall 57.
  • the bottom wall 56 a in the embodiment shown, a general conical shape. In an other possible embodiment, the bottom wall 56 has a general frustoconical shape.
  • the tip 58 or the small base of the wall lower 56 faces the lower part 46, that is to say towards space 49.
  • the large base 59 is quant opposite to the main column 41.
  • the upper wall 57 a in the embodiment shown, a general conical shape. In other embodiments, the upper wall 57 has a shape general frustoconical or hemispherical, or a form complex derived from the foregoing forms. Wall upper 57 has a large common base with the large base 59. It is therefore turned towards the lower part 46.
  • the spacers 50 already mentioned are by example associated with the upper wall 52 of the part lower 46 and to the lower wall 56 of the part superior 47.
  • the vacuum cleaner 45 represented is of static type, it also enters the part of the present invention that this vacuum cleaner is stato-mechanical type. In this case (not shown), the vacuum cleaner 45 also includes an integrated turbine.
  • This turbine has its blades located in space 49 or in a space provided by the upper part 47.
  • a second column 59 surrounds the main column 41.
  • This second column 59 leads on the one hand into the evacuation zone 42, therefore outside the building 3, and on the other hand, in a supply pipe 60, which is connected to main duct 4 of the air supply system 1.
  • the second column 59 has a substantially transverse section circular, with a diameter greater than that of the column main 41.
  • this second column 59 as well as the main column 41 and main duct 4 can be respectively unitary or composed of several aligned, coaxial and fixed sections two by two.
  • the space 61 separating the second column 59 from the main column 41, is large enough that the air coming from the evacuation zone 42 can there circulate, following the arrows F3.
  • This air is then routed through the supply pipe 60 to main duct 4 of the air supply system 1.
  • the first air source 5 is combined with evacuation zone 42.
  • Ports 62 are provided on the wall of the second column 59 so as to allow the passage of the or extraction vents 43 which are mounted in the nozzle on the main column 41.
  • a bypass system 63 leading to a source of fresh air 64 can also plan to arrange, for example on the supply pipe 60, a bypass system 63 leading to a source of fresh air 64.
  • bypass system 63 would allow to close the upstream end 59b of the second column 59 and open the downstream end of source 64.
  • the lower walls 27, 30 26 and 31 have a general shape prismatic.
  • the small base 54 of the wall upper 52 and, if applicable, the small base of the lower wall 56 would have a section rectangular and not square, as is the case with regard to the aforementioned vacuum cleaner 45.
  • the second device additional air injection 44 is arranged at outside of building 3, rising above and above its roof, one can foresee that it is fixed there by through a flashing, to ensure the watertightness of this fixation.
  • a stump surrounding the column main 41 from the flashing to the vacuum cleaner 45, excluded, can be rigidly fixed to the flashing.
  • This strain is for example made in a prefabricated metallic material.
  • the walls of the strain are sufficiently spaced from the downstream end of the main column 41 and of the injection device 44, so as to leave a free space between them, to allow for example insulation from cold drafts or hot outside. This insulation is for example ensured using rock wool or the like attached to the interior walls of the strain.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Ventilation (AREA)
  • Duct Arrangements (AREA)
  • Refuse Collection And Transfer (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Chimneys And Flues (AREA)
  • Nozzles (AREA)
EP98401132A 1997-05-13 1998-05-12 Belüftungssystem mit Lufteinspritzung für einen besseren Zug Expired - Lifetime EP0878672B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9705855 1997-05-13
FR9705855A FR2763390B1 (fr) 1997-05-13 1997-05-13 Systeme de ventilation avec injection d'air supplementaire pour l'aide au tirage

Publications (2)

Publication Number Publication Date
EP0878672A1 true EP0878672A1 (de) 1998-11-18
EP0878672B1 EP0878672B1 (de) 2004-09-15

Family

ID=9506833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401132A Expired - Lifetime EP0878672B1 (de) 1997-05-13 1998-05-12 Belüftungssystem mit Lufteinspritzung für einen besseren Zug

Country Status (7)

Country Link
EP (1) EP0878672B1 (de)
AT (1) ATE276494T1 (de)
DE (1) DE69826173D1 (de)
FR (1) FR2763390B1 (de)
HU (1) HUP9801076A1 (de)
PT (1) PT878672E (de)
RU (1) RU2196276C2 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926626A1 (fr) * 2008-01-22 2009-07-24 Aldes Aeraulique Sa Installation de production d'eau chaude sanitaire pour une habitation collective
CN106288123A (zh) * 2016-08-17 2017-01-04 浙江诚名智能工程有限公司 一种室内新风***
US9758320B2 (en) 2012-03-21 2017-09-12 Maricap Oy Method and apparatus for treating the outlet air of a pneumatic waste conveying system
CN113260792A (zh) * 2018-12-24 2021-08-13 列奥纳多股份公司 喷射式风机和包含这种风机的运输工具
WO2023214158A1 (en) * 2022-05-05 2023-11-09 Colin Ferguson Apparatus for ventilating a structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2748772A1 (de) * 1977-10-31 1979-05-03 Gregor Freisberg Sammelschachtanlage zur be- und entlueftung von mehrgeschossigen gebaeuden
JPS61159039A (ja) * 1984-12-28 1986-07-18 Kajima Corp 建物内における大空間換気装置
JPS63105345A (ja) * 1986-10-20 1988-05-10 Susumu Nakayama 養鶏舎の換気方法とその装置
EP0329498A1 (de) * 1988-01-25 1989-08-23 Jacques Paziaud Vorrichtung zur Luftbewegung in einem Kanal
WO1995008084A1 (en) * 1993-09-15 1995-03-23 P.O. Andersson Konstruktionsbyrå Ab Ventilation arrangement, including filter constructed as sound dampener, flow damper and for filtering purposes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347147A (en) * 1967-03-02 1967-10-17 Ben O Howard Exhauster including venturi means
FR2374591A1 (fr) 1976-12-14 1978-07-13 Amphoux Andre Aspirateur statico-dynamique de fluides gazeux
FR2438795B2 (fr) 1978-10-13 1986-04-04 Amphoux Andre Aspirateur statico-dynamique de fluides gazeux
FR2514469B1 (fr) 1981-10-13 1986-04-04 Amphoux Andre Dispositif aspirateur de fluide gazeux statique, dynamique et mecanique
FR2518710B1 (fr) 1981-12-18 1988-09-23 Amphoux Andre Aspirateur statique de fluide gazeux perfectionne
FR2651563B1 (fr) 1989-09-06 1991-12-27 Amphoux Andre Dispositif d'aspiration de gaz.
FR2658271B1 (fr) 1990-02-09 1995-01-06 Andre Amphoux Dispositif pour l'aspiration et le rejet de gaz ou fumees et installation comportant une pluralite de tels dispositifs.
FR2709534B1 (fr) 1993-09-03 1996-02-09 Andre Amphoux Dispositif statique/dynamique pour l'évacuation de fluide gazeux.
FR2709533B1 (fr) 1993-09-03 1995-11-03 Amphoux Andre Dispositif pour l'évacuation de fluide gazeux.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2748772A1 (de) * 1977-10-31 1979-05-03 Gregor Freisberg Sammelschachtanlage zur be- und entlueftung von mehrgeschossigen gebaeuden
JPS61159039A (ja) * 1984-12-28 1986-07-18 Kajima Corp 建物内における大空間換気装置
JPS63105345A (ja) * 1986-10-20 1988-05-10 Susumu Nakayama 養鶏舎の換気方法とその装置
EP0329498A1 (de) * 1988-01-25 1989-08-23 Jacques Paziaud Vorrichtung zur Luftbewegung in einem Kanal
WO1995008084A1 (en) * 1993-09-15 1995-03-23 P.O. Andersson Konstruktionsbyrå Ab Ventilation arrangement, including filter constructed as sound dampener, flow damper and for filtering purposes

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 365 (M - 542) 6 December 1986 (1986-12-06) *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 346 (M - 742) 16 September 1988 (1988-09-16) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926626A1 (fr) * 2008-01-22 2009-07-24 Aldes Aeraulique Sa Installation de production d'eau chaude sanitaire pour une habitation collective
WO2009092976A3 (fr) * 2008-01-22 2009-09-17 Aldes Aeraulique Installation de production d'eau chaude sanitaire pour une habitation collective
US9758320B2 (en) 2012-03-21 2017-09-12 Maricap Oy Method and apparatus for treating the outlet air of a pneumatic waste conveying system
CN106288123A (zh) * 2016-08-17 2017-01-04 浙江诚名智能工程有限公司 一种室内新风***
CN106288123B (zh) * 2016-08-17 2019-04-02 浙江诚名智能工程有限公司 一种室内新风***
CN113260792A (zh) * 2018-12-24 2021-08-13 列奥纳多股份公司 喷射式风机和包含这种风机的运输工具
CN113260792B (zh) * 2018-12-24 2024-04-16 列奥纳多股份公司 喷射式风机和包含这种风机的运输工具
WO2023214158A1 (en) * 2022-05-05 2023-11-09 Colin Ferguson Apparatus for ventilating a structure

Also Published As

Publication number Publication date
FR2763390B1 (fr) 1999-07-23
ATE276494T1 (de) 2004-10-15
HUP9801076A1 (hu) 1999-05-28
FR2763390A1 (fr) 1998-11-20
HU9801076D0 (en) 1998-07-28
RU2196276C2 (ru) 2003-01-10
EP0878672B1 (de) 2004-09-15
DE69826173D1 (de) 2004-10-21
PT878672E (pt) 2005-01-31

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