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
  • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
  • F24F13/02—Ducting arrangements
  • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
  • F24F13/072—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser of elongated shape, e.g. between ceiling panels
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S261/00—Gas and liquid contact apparatus
  • Y10S261/15—Duct humidifiers

Definitions

• the invention relates essentially to an air compression device.
• the anterior devices are generally based on the use of a mixture of air flows at different temperatures to set the temperature to the desired temperature, at constant pressure.
• document DE-A-36 44 590 describes in particular in relation to FIGS. 12 to 14 an embodiment of an air conditioning apparatus for a room comprising an induction air diffuser 55 at a variable flow rate by the presence of a device 57 for partially closing the outlet opening 21, which performs a flow rate variation but using the same pressure as the incoming pressure. It is therefore a conventional system where the outlet pressure is essentially identical to the incoming pressure and from complete opening to complete closing, the air outlet pressure remains unchanged, so that the length of the air jet changes according to the value of the useful outlet opening 21.
• the main object of the present invention is to solve the new technical problem consisting in providing a solution, which makes it possible to achieve compression of a compressible fluid, preferably air, at a variable pressure, in a particularly simple and inexpensive manner, from an incident flow at substantially constant pressure.
• the main object of the present invention is also to solve the new technical problem consisting in providing a solution which makes it possible to produce a jet of fluid at substantially constant range, this flow advantageously being air, which makes it possible to produce a apparatus for air conditioning at least one room.
• the main object of the present invention is also to solve the new technical problem consisting in providing a solution which makes it possible to achieve compression of a compressible fluid preferably air with self-regulation or automatic compensation of its flow rate, thus eliminating the need for pipes, pumps, cold or hot batteries, all the necessary power can now be directly transmitted to the fluid, allowing, in addition, obtaining unparalleled comfort in the context of air conditioner.
• the invention aims to allow the compression of a compressible fluid, preferably air, circulating at high speed, allowing the implementation of various variants allowing use in all sectors of air conditioning ranging , for example, from the offshore platform to housing, thereby opening up new market sectors, in particular thanks to a particularly low production cost compared to the previous product (s) on the market.
• the present invention aims to solve these new technical problems in a simple, inexpensive, reliable, usable on an industrial scale and in the context of the air conditioning of industrial premises or dwellings.
• the present invention simultaneously achieves all of these results.
• the present invention relates to an apparatus making it possible to obtain a jet of fluid preferably at constant range, characterized in that it comprises a conduit for confining said fluid, open at the two upstream ends and downstream, provided at its downstream end with at least one device for compressing said compressible fluid comprising a deformable envelope between a maximum opening section and a minimum opening section, and also at its upstream end at least one member designed to settle the loss of loading of the incoming fluid, thereby making it possible to increase the pressure of the air passing through the envelope from a minimum pressure for the maximum opening to a maximum pressure for the minimum opening, thus providing a pressure of the fluid at the outlet of the variable device from an incident flow at substantially constant pressure.
• the invention makes it possible to transfer energy from the upstream part to the downstream part thanks to the presence of at least one member designed to regulate the pressure drop of the incoming flow. It is understood that at the maximum opening downstream, the flow is maximum and the pressure drop is maximum, so that the pressure of the fluid leaving the apparatus of the invention is minimum, that is to say very different from the pressure of the incoming flow while when the opening is almost closed, the outgoing flow is minimal, so that the pressure drop in the pressure drop adjustment device tends towards zero, which achieves a transfer of pressure of this pressure drop device at the outlet of the device and the outlet pressure is then maximum.
• the entire device is essentially coaxial aligned, that is to say that the upstream pressure drop member has its axis essentially aligned with the axis of the downstream compression device and also preferably with the axis of a conduit for confining the fluid, if present, for maximum energy recovery, with minimal turbulence in the apparatus and at the outlet of the device which minimize noise, the device is preferably constructed with an internal duct profile according to the substantially perfect aeraulic angle, generally of the order of 7 °.
• the member regulating aforesaid pressure drop comprises at least one cylinder subdivided into a multitude of pipes of predetermined diameter for passage of said fluid, thus making it possible to obtain a predetermined pressure drop by increasing the flexibility d use of the aforementioned downstream pressure variator device.
• this device is characterized in that it includes upstream several pressure drop members, which can be plug-in, so as to increase the total length of the pipes thus varying the pressure drop, which influences the value of the fluid pressure at the outlet of the device.
• At least one partial obturation member advantageously upstream from the aforementioned member for adjusting the pressure drop of the incoming fluid which can be inactive, partially active or completely inactive while being moved towards or away from the pressure drop regulator, in order to ensure fine adjustment of the pressure drop.
• this device is characterized in that the aforementioned envelope is preferably of revolution and has, for its maximum opening section, a substantially cylindrical section.
• the deformable envelope has for its minimum opening section an essentially flattened section.
• this device is characterized in that it comprises means for varying the section of the aforementioned deformable envelope.
• the means for varying the section of the aforementioned envelope are controlled by a control member external to the envelope, not interfering with the opening section of the deformable envelope.
• the aforementioned deformable envelope comprises a membrane, which, in the non-deformed state, has an essentially cylindrical shape, for example made of rubber, elastomer, a thin metal or thin blade, or similar materials.
• the means for varying the section of the aforementioned deformable envelope comprise at least two flattening elements disposed substantially diametrically opposite with respect to the axis of symmetry of the above-mentioned envelope of revolution.
• the two aforementioned elements comprise a substantially planar blade mounted for rotation about an axis of rotation substantially perpendicular to the axis of symmetry of the aforementioned envelope of revolution, said axis of rotation being disposed outside. of the maximum opening section of the envelope.
• the above-mentioned substantially planar blades comprise, towards the free outlet end of the fluid, at least two elements forming shims, of predetermined thicknesses, arranged diametrically opposite with respect to the abovementioned envelope of revolution so as to come, at the end of the race, close the envelope of revolution in its central part, leaving two open zones offset offset from the axis of revolution so as to obtain a fluid flow at maximum pressure.
• the aforementioned deformable envelope has a predetermined length, which can advantageously be approximately at least twice its diameter.
• the aforementioned compressible fluid is generally a gas, advantageously air, which makes it possible to envisage the use of the aforementioned device in the context of an apparatus making it possible to obtain a jet of fluid at substantially constant range, as well as in the context of the air conditioning of at least one room, as will be described below with reference to the second aspect of the invention.
• the present invention also covers an apparatus making it possible to obtain a jet of fluid preferably at substantially constant range, characterized in that it comprises a conduit for confining said fluid, open at both upstream and downstream ends, provided at its downstream end of at least one compression device as defined above.
• the aforementioned confinement conduit has an internal surface of progressively decreasing diameter from upstream to downstream, to increase the speed of passage of the fluid.
• this aforementioned device is provided for the air conditioning of at least one room and is characterized in that it further comprises a fluid injection system at a predetermined temperature to correct the temperature or the humidity of said room.
• the aforementioned injection system is arranged in the vicinity of the downstream outlet of said fluid, preferably in an offset manner relative to the axis of the aforementioned envelope of revolution.
• the system can, according to a variant, be arranged outside the abovementioned containment pipe.
• the device according to the invention is characterized in that the injection system comprises a complementary fluid injection pipe, the diameter of which is approximately 2 to 4 times smaller than the diameter of the above-mentioned envelope of revolution in the non-deformed state.
• the aforementioned injection system is disposed inside the aforementioned containment piping in the vicinity of its upstream end.
• the abovementioned confinement piping is itself disposed inside a sheath for supplying fluid to said room.
• the device is characterized in that the abovementioned confinement piping is arranged in said sheath in the vicinity of a fluid intake inlet from said room, said intake preferably being produced by external mechanical means, such as a fan.
• this device is characterized in that the aforementioned fluid consists of air and said room comprises at least one room of an industrial room, or of a dwelling. Thanks to the invention, it is possible to adjust the outlet pressure of the fluid from the compression device, such as air, which makes it possible to obtain a jet of fluid at substantially constant range, without modifying the pressure of the fluid. entering and thus achieve the air conditioning of at least one room in ideal conditions, economical in energy, with an extremely simple structure, much less expensive than devices previously used for air conditioning of rooms.
• the compression device such as air
• - Figure 1 is a cross-sectional longitudinal view, schematic, of a device according to the invention for compressing a compressible fluid, such as air, comprising a deformable casing downstream and a loss of load upstream, incorporated in an apparatus making it possible to obtain a jet of fluid at substantially constant range, the entire device being aligned coaxially;
• - Figure 2 is an enlarged partial sectional view of the area II of Figure 1, showing in phantom line only one side, the maximum opening position and in solid lines on both sides, the minimum opening position;
• FIG. 3 shows a downstream front view, along arrow III of Figure 2 with phantom in the maximum open position and in solid line the minimum open position;
• FIG. 4 also shows a downstream view, along arrow III of Figure 2, for the maximum opening position
• FIG. 5 shows a view similar to the view in Figure 4, for an intermediate opening position
• Figure 6 shows a view similar to Figures 4 and 5, for the minimum opening position
• Figures 7, 8 and 9 schematically show a view similar to Figure 1, for each position, respectively of maximum opening, Figure 7, intermediate opening, Figure 8, and minimum opening, Figure 9, which correspond in the open positions of Figures 4, 5 and 6 respectively;
• FIG. 10 represents respectively the upstream flow and downstream flow curves obtained using the compression device of the present invention, where it can be observed that the upstream flow being constant, the downstream flow can be adjusted in considerably different proportions , which is also well understood by those skilled in the art, and which will also be understood with reference to the description of the figures, which will follow.
• FIG. 1 there is shown a longitudinal sectional view of a device, represented by the general reference number 10, for compressing a compressible fluid 12, here incorporated in an apparatus, represented by the reference number general 100, making it possible to obtain a jet of fluid at substantially constant range, by generating a variable pressure at the outlet from an incident flow at substantially constant pressure, this variation in pressure being obtained thanks to the presence of 'At least one member 120 for pressure drop adjustment arranged upstream and which will be described more precisely below.
• the various devices or organs of the device 100 are essentially coaxially aligned.
• the device 10 according to the invention for compressing a compressible fluid 12 is characterized in that it comprises a deformable envelope 20, here of revolution, between a maximum opening section, shown in FIG. 1, partly in line phantom in Figure 2, in phantom in figure 3 and in solid line in Figure 4, and a minimum opening section, shown in solid line in Figure 2, in Figure 3 and in Figure 6.
• This deformable envelope 20 thus makes it possible to increase the pressure of the air passing through said envelope from a minimum pressure for the maximum opening, to a maximum pressure, for the minimum opening, as is understandable to a man of the art.
• the aforementioned deformable envelope 20 has, for its maximum opening section, shown in FIGS. 1, 4 and 7, a substantially cylindrical section, which is also clearly visible in these figures.
• the envelope 20 has, for the maximum opening, a substantially flattened section.
• the device 10 is characterized in that it comprises means 30 for varying the section of the aforementioned deformable envelope 20.
• the means 30 for varying the section of the envelope 20 are controlled by a control member (40) external to the envelope 20, not interfering with the opening section of the deformable envelope 20.
• This control member 40 may for example include a roller 42, for example of ellipsoidal shape, defining a large diameter D and a small diameter d, clearly visible in Figure 2, mounted in rotation along an axis of rotation 44, disposed essentially perpendicular to the plane defined by the ellipsoidal roller 42 and which is controlled by conventional type rotation control means, well known to those skilled in the art, and which are therefore not shown here for a better understanding of the figures.
• a roller 42 for example of ellipsoidal shape, defining a large diameter D and a small diameter d, clearly visible in Figure 2, mounted in rotation along an axis of rotation 44, disposed essentially perpendicular to the plane defined by the ellipsoidal roller 42 and which is controlled by conventional type rotation control means, well known to those skilled in the art, and which are therefore not shown here for a better understanding of the figures.
• the device 10 is characterized in that the aforementioned deformable envelope 20 comprises a membrane 22, which in the undeformed state, represented in FIGS. 1, 4, 7 and 8, has an essentially cylindrical shape, for example made of rubber, elastomer or similar materials.
• the means 30 for varying the section of the aforementioned deformable envelope 20 comprise at least two flattening elements, respectively 32, 34, clearly visible in the figures, arranged substantially diametrically opposite with respect to the axis XX of symmetry, in particular shown in FIG. 2, of the envelope 20 of the above-mentioned revolution.
• the two elements 32, 34 here comprise a substantially planar blade mounted in rotation about an axis of rotation 36, 38, clearly represented in FIG. 2, substantially perpendicular to the axis of symmetry XX of l of revolution 20.
• the substantially planar blades comprise towards the free outlet end of the fluid at least two elements 50, 52 forming shims of predetermined thickness arranged diametrically opposite with respect to the envelope of revolution 20 above, so as to come in end of travel, close the envelope of revolution 20 in its central part, as shown in solid lines in FIG. 2, in FIG. 3, thus leaving no space remaining over the distance defined by the elements forming shims 50, 52 , as clearly visible in Figure 3, but leaving two open areas respectively referenced Zl, Z2 in Figure 3, offset with respect to the axis XX of symmetry so as to obtain a fluid flow at maximum pressure.
• the elements 50, 52 forming shims are not essential and they can be eliminated if it is desired to obtain a complete closure of the outlet opening, as is possibly advantageous in certain air conditioning systems when it is desired to isolate a given room.
• the above-mentioned envelope of revolution 20 has a predetermined length, which can advantageously be approximately at least twice its diameter.
• a reinforcing element 54 shown in particular in FIGS. 4 to 6, possibly, deformable, such as a metal grid, which makes it possible to limit the expansion of the envelope of revolution 20, constituted in practice by the membrane 22, during the passage under pressure of the fluid 12, inside the latter.
• the means 30 for varying the section of the envelope 20, here preferably comprising the flattening elements 32, 34, in the form of substantially planar blades, are applied against the surface of the member control 40, here in the form of a roller 42, by unilateral thrust means 60, such as springs 62, or other equivalent means;
• said apparatus is characterized according to the invention in that it comprises a conduit 110 for confining said fluid 12, open at the two upstream 112 and downstream 114 ends, provided at its downstream end 114, with at least one device 10, according to the present invention as previously described.
• the apparatus 100 is, according to an advantageous embodiment, characterized in that it comprises at its upstream end 112 at least one member 120 provided for adjusting the pressure drop of the incoming fluid.
• this member 120 creating and regulating a pressure drop comprises at least one cylinder, such as 122, 124, 126, shown diagrammatically in FIG. 1 and shown more precisely in FIGS. 8 and 9, subdivided into a multitude of pipes, such as 130, which can be clearly seen in FIGS. 8 and 9, with a predetermined diameter for the passage of said fluid, thus making it possible to obtain a predetermined pressure drop, by increasing the flexibility of use of the aforementioned device 10 and pressure variation downstream.
• the apparatus 100 is characterized in that it includes upstream several pressure drop members, for example three references 122, 124, 126, which can be plug-in, as is understandable to a man of the art, so as to increase the total length of the pipes 130, thereby varying the pressure drop, which influences the value of the pressure of the fluid leaving the device 100, for a substantially constant pressure of the incident flow entering the device.
• upstream several pressure drop members for example three references 122, 124, 126, which can be plug-in, as is understandable to a man of the art, so as to increase the total length of the pipes 130, thereby varying the pressure drop, which influences the value of the pressure of the fluid leaving the device 100, for a substantially constant pressure of the incident flow entering the device.
• the abovementioned confinement pipe 110 has, on at least one part, an internal surface 140 of progressively decreasing diameter from upstream to downstream, in order to increase the speed of passage of the fluid.
• FIG. 9 a possible modification of the organ has been shown.
• this member 132 is advantageously disposed upstream for the ease of adjustment and is mounted movable in translation substantially along the axis of symmetry of the device 100 marked XX in FIG. 9 by being integral for example with a threaded rod 133 cooperating with a nut-forming element 134 of fixed position.
• This partial closure member 132 may have a maximum impasto or diameter D capable of closing at most approximately 50% of the inlet surface of the section S of the inlet duct 102 of the flow, for example air. It may be advantageous to profile the upstream part of the partial closure member 132, for example here in a frustoconical shape so as to create the minimum of turbulence on the incoming upstream flow. It is understood that when the member 132 is screwed onto the screw 133, the partial shutter member 132 is moved closer or further away which is made more and more active or conversely more and more inactive depending on the distance which separates it from the surface of the member of the first pressure drop member 122.
• this member 132 when this member 132 is applied to the surface of the first member 122 for pressure loss, it will completely close the orifices 130 arranged inside its impasto. Thanks to this adjustment, it is possible to vary the flow rate by 50% and therefore to adjust the pressure drop by a value of 1 to 4, as is understandable to a person skilled in the art.
• the apparatus of the invention 100 for air conditioning at least one room it is characterized in that it further comprises a system 150 for injecting fluid 152 at a predetermined temperature to correct the temperature or humidity of said room, preferably arranged outside the confinement pipe 1 10.
• the aforementioned injection system 150 is disposed in the vicinity of the downstream outlet of said fluid 12, as shown in FIG. 1, preferably offset from the axis XX of the envelope 20 of revolution, as shown in Figure 1.
• the injection system 150 comprises a line 154 for complementary injection of fluid 152, the diameter of which is approximately two to four times less than the diameter of the aforementioned envelope 20 of revolution in the non-deformed state, shown in particular in FIGS. 4, 7 and 8.
• the aforementioned injection system can be arranged inside the confinement piping 110, in the vicinity of its upstream end.
• the abovementioned confinement piping 1 10 may itself be disposed inside a sheath 160 for supplying fluid to said room.
• the confinement piping 110 can be disposed in said sheath 160 in the vicinity of an inlet 162 for fluid intake 12a and then said room, by an appropriate intake sheath 164, said intake preferably being produced by means external mechanical 166, such as a fan.
• the aforementioned fluid is preferably constituted by air and said room comprises at least one room of an industrial room or a dwelling.
• the heating power is no longer regulated by reducing the air flow.
• the flow rate is fixed at a stable value and a thermostat regulates a flow of hot water or the power of an electric heater.
• the invention makes it possible to reduce the hot or cold power from 100% to 25% by reducing only slightly or not more than approximately 25% the downstream flow.
• the high induction rates obtained make it possible to generate no cold or hot air stream at low upstream flow rate because the blown air is at a temperature close to the temperature of the room, bringing an improvement in the trajectory of the air, which is outside the occupation zone, this trajectory being substantially horizontal, whatever the flow rate, by increasing the pressure.
• the diagram of upstream air flow and downstream flow shown in FIG. 10 is obtained, for a pressure of 290 Pascal of the incoming fluid.
• the downstream flow will make it possible to obtain a total flow, which will always be greater than 100 m per hour, thanks to the reduction in the fluid outlet section 12 of the compression device 10 according to the invention, which makes it possible to increase the induction rate, under the influence of three factors, which are the rise in pressure and speed on the outlet head, as the flow rate decreases, until the pressure of the fluid in the outlet is almost doubled, reducing the volume of the compressed air jet 12 inside the duct 160, frees up an increasingly large space for the induced air and the maintenance of the contact perimeter of the induced air jet due to the flattening of the envelope 20 of deformable revolution mentioned above.
• the upstream pressure drop of block 120 is initially set to a maximum value so that when reducing the upstream flow of 50% the reduction in pressure drop corresponding to the reduction in flow of about 50% is found downstream, so that the pressure of the outgoing flow is increased by a pressure value corresponding substantially to three-quarters of the difference in pressure drop obtained.
• a pressure value corresponding substantially to three-quarters of the difference in pressure drop obtained For example, for an initial block pressure drop of 200 Pa initial and a flow outlet pressure value of around 200 Pa, if the flow rate is reduced by 50%, the upstream pressure drop becomes 50 Pa, and l The pressure drop difference of 150 Pa is found appreciably downstream at the level of the membrane, so that the outlet pressure is now around 350 Pa. On the other hand, the incoming pressure of the flow has remained unchanged at 400 Pa. It is thus observed that in accordance with the apparatus according to the invention from an incident flow at substantially constant pressure, a variable pressure of the outgoing air flow is obtained.
• the temperature of the mixture obtained is as follows, mathematically:
• the transfer device maintains a substantially constant air range and in fact allows the air flow to self-regulate or compensate automatically by causing the elimination of the need for pipes, pumps, cold or hot coil. , all the necessary power can now be directly transmitted to air or any equivalent fluid, to obtain unparalleled comfort. It is thus understood that the invention makes it possible to obtain decisive technical advantages previously stated.
• the invention includes all the means constituting technical equivalents as well as their various combinations.

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• 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)
• Gas Separation By Absorption (AREA)
• External Artificial Organs (AREA)
• Control Of Fluid Pressure (AREA)
• Pipe Accessories (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)

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• 1997
  • 1997-06-02 FR FR9706734A patent/FR2764006B1/fr not_active Expired - Fee Related
• 1998
  • 1998-06-02 US US09/445,064 patent/US6318706B1/en not_active Expired - Lifetime
  • 1998-06-02 EP EP98928410A patent/EP0986723B1/de not_active Expired - Lifetime
  • 1998-06-02 JP JP50171599A patent/JP2002502488A/ja active Pending
  • 1998-06-02 DE DE69812355T patent/DE69812355T2/de not_active Expired - Lifetime
  • 1998-06-02 WO PCT/FR1998/001103 patent/WO1998055808A1/fr active IP Right Grant
  • 1998-06-02 AT AT98928410T patent/ATE235028T1/de not_active IP Right Cessation
  • 1998-06-02 CA CA002291587A patent/CA2291587A1/fr not_active Abandoned
  • 1998-06-02 AU AU80245/98A patent/AU8024598A/en not_active Abandoned
  • 1998-06-02 ES ES98928410T patent/ES2195348T3/es not_active Expired - Lifetime

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