EP1776548A1 - Procede et dispositif pour aerer et temperer une piece - Google Patents

Procede et dispositif pour aerer et temperer une piece

Info

Publication number
EP1776548A1
EP1776548A1 EP05777665A EP05777665A EP1776548A1 EP 1776548 A1 EP1776548 A1 EP 1776548A1 EP 05777665 A EP05777665 A EP 05777665A EP 05777665 A EP05777665 A EP 05777665A EP 1776548 A1 EP1776548 A1 EP 1776548A1
Authority
EP
European Patent Office
Prior art keywords
air flow
mixed
air stream
mixed air
induction zone
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
EP05777665A
Other languages
German (de)
English (en)
Other versions
EP1776548B1 (fr
Inventor
Ernest Kurz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1776548A1 publication Critical patent/EP1776548A1/fr
Application granted granted Critical
Publication of EP1776548B1 publication Critical patent/EP1776548B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/01—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station in which secondary air is induced by injector action of the primary air

Definitions

  • the invention further relates to a device for ventilating and temperature-controlling a room, having a primary air connection, a first induction zone in which a secondary air flow can be induced from a primary air flow, a second induction zone in which the first mixed air flow contains a tertiary air flow or a tertiary air ⁇ border air flow is miscible, whereby a second mixed air flow can be generated, a mixed air outlet, via which the second mixed air flow is supplied to the room, and ei ⁇ nem heat exchanger for controlling the temperature of at least one of the aforementioned air streams.
  • Such induction systems are well known. In particular, they have the advantage that, with a comparatively low primary air volume flow, a quantitatively significantly increased second mixed air volume flow can be generated as a result. It is possible to generate mixed air volume flows, which make up a multiple of the primary air volume flows in terms of amount. However, further enlargement is limited in practice since the air speeds in the induction zone can not be selected arbitrarily large. In particular, the stability of the air flows in the induction zones, which must be guaranteed under all operating conditions, often critical.
  • FR 2 833 339 A1 discloses an air treatment device in the form of a ceiling converter, in which room air is induced in a first section by means of a nozzle, which is then directed via a nozzle tube into the interior of the actual convector where it emerges from nozzle bores , With the help of this air, room air in the form of tertiary air is again induced from the bottom of the convector. The mixed air thus formed is then passed through a heat exchanger and finally returned to the room after a deflection via fins on the underside of the convector.
  • the second induction stage in which the tertiary air is induced, is to be regarded with regard to their stability as critical.
  • the principle of multi-stage induction is also known from FR 2 720 484 A1.
  • secondary air is induced by means of central air entering a mixing chamber, which enters the mixing chamber via an annular gap surrounding the primary air inlet.
  • a similar induction principle is based on the wide induction stage, where the Misch ⁇ air formed from primary air and secondary air is introduced centrally into the mixing chamber and there induces tertiary air, which is introduced via an annular gap in the second mixing chamber. The coordination of the pressure and resistance conditions is difficult even with this multi-stage induction.
  • the mixed air thus formed is used in a second induction zone to induce tertiary air.
  • the inflow of the tertiary air is effected by a breakthrough of the shell of a cross-sectional widening flow section.
  • the tertiary air be ⁇ previously found in an annular chamber between the outer shell of the expanding flow section and a cylindrical pipe section of the outer housing of the device.
  • this object is achieved according to the invention in that, in addition to the tertiary air stream, the first mixed air stream is supplied with a further primary air stream or a third mixed air stream containing a further primary air stream.
  • the formation of the second induction zone is stabilized by the further primary air flow or the third mixed air flow containing a further primary air flow, and the amount of induced tertiary air, that is also the amount of the second mixed air formed overall, is increased.
  • the ratio of the primary air volume flow to the second mixed air volume flow obtained as a result is also increased overall.
  • the invention thus contributes to reducing the amount of primary air required for their generation in the case of a certain amount of the second mixed air to be supplied. This further reduces the costs involved in the construction but also in the operation of ventilation and air conditioning systems. In particular, it is possible to Decrease volume flow far enough that just for the required to be ventilated or tempered room fresh air flow is delivered.
  • the induced secondary air and tertiary air are typically room air, which admittedly can not contribute to the supply of fresh air, but which increases the total volumetric flow supplied, and thus in particular also when the supply air supplied to the room is supplied with a small amount Temperature difference to the room air allows the introduction of larger amounts of energy in the room.
  • the increase in volume flow and the use of smaller temperature differences is considerably more advantageous in terms of comfort and is perceived by the persons in the room as much more pleasant than if smaller supply air quantities were supplied with a greater temperature difference.
  • An embodiment of the method according to the invention is that the tertiary air stream is induced by the further primary air flow in a third induction zone, whereby a third mixed air flow is formed and then in the second induction zone, the third mixed air flow and the first mixed air flow are mixed to the second mixed air flow , wherein in the second induction zone, preferably the first mixed air flow is induced by the third mixed air flow.
  • inductions take place at three points, with two mixed air streams already containing induced air, namely the first and the third mixed air flow, being combined in the second induction zone.
  • the third mixed air flow is induced by the first mixed air flow.
  • the alternative variant is chosen, namely that the first mixed air flow is induced by the third mixed air flow, in particular when the first mixed air flow is guided by a sautau shear after the first induction zone, whereby a certain pressure loss and thus also loss of momentum ⁇ occurs, which can not go below certain limits even with optimal design of the heat exchanger.
  • the further primary air flow is branched off from the primary air flow upstream of the first induction zone and is thus a bypass airflow.
  • the expenditure on equipment can thereby be kept very low, since in particular no auxiliary energy is required to generate the further primary air flow.
  • the further primary air flow could also be generated by a suitable air conveyor device and consist, for example, of room air.
  • the first mixed air stream is tempered, ie heated or cooled, by means of the heat exchanger.
  • the second mixed air stream by means of the heat exchanger. Due to the very low pressure present after the second induction stage, however, a heat exchanger with extremely low pressure loss would have to be used in this case in order not to produce a negative reaction to the second induction stage. Furthermore, the volumetric flow which would have to be tempered would already be very large, so that a heat exchanger would also have to be correspondingly large. The temperature of the first mixed air flow by means of the heat exchanger has therefore been found to be the preferred variant.
  • the object is achieved according to the invention in that the first mixed air flow in addition to the Tertiär ⁇ air flow another primary air flow or a further Primär Kunststoffstrom included the mixed air stream can be fed, which emerges with the first.
  • the inventive method can be carried out in a particularly simple manner. This is especially true if the Tertiär ⁇ air flow from the further primary air flow in a third induction zone is preferably inducible, whereby a third mixed air flow can be generated, and then in the second induction zone of the third Misch Kunststoffstram and the first mixed air flow to the first Mixed mixed air flow are miscible, wherein in the second induction zone, preferably the ers te te mixed air flow of the third mixed air flow is inducible.
  • the further primary air flow can be fed directly to the second induction zone, with which the induced tertiary air flow is enlargeable.
  • At least one bypass line is provided which branches off in front of the first induction zone and extends into the second induction zone with an orifice area.
  • bypass lines with end sections running parallel to the first mixed air flow
  • a certain constriction of the air flow in the second induction zone and therefore an improved induction effect with a more stable jet pattern can be achieved.
  • These flat cross sections should preferably each extend tangentially to the cross section of the second induction zone, preferably distributed equidistant from each other.
  • the heat exchanger is cylindrical in cross-section.
  • a combined nozzle and distributor piece on which the nozzles are arranged to apply primary air to the first induction stage and to the branches of the bypass lines.
  • the nozzle and distribution piece should furthermore have a connecting piece with which it can be connected to a conventional channel system for primary air. The nozzle and distribution piece therefore assumes the task of branching off the auxiliary air for the second induction stage as well as the nozzle air admission for the first induction stage.
  • Fig. 1 is a schematic representation of the various air flows of a first embodiment 2 is a perspective view of a device according to the Lucas ⁇ flow according to Fig. 1st
  • FIG. 3 is a side view of the device of FIG. 2,
  • FIGS. 2 to 4 shows a schematic representation of the installation situation of the device in a false ceiling area according to FIGS. 2 to 4
  • FIG. 6 is a bottom view of the false ceiling according to the installation situation according to FIG. 5 and FIG.
  • Fig. 7 is a schematic representation of the different air streams of a second embodiment
  • a primary air stream 2 is supplied. In the region of a first induction zone 3, this primary air flow 2 induces a secondary air flow 4. In a mixing region (not shown) adjoining the first induction zone 3 downstream, the primary air flow 2 and the induced secondary air flow 4 mix to a first one This is then fed to a heat exchanger 6 and tempered there.
  • the heat exchanger 6 is supplied via a feed line 7 with a medium (water or refrigerant). The medium leaves the heat exchanger 6 via a return line 8.
  • the tempered first mixed air stream 5 then induces a tertiary air flow 10 in a second induction zone 9, which is also generally room air.
  • a second mixing zone located downstream of the second induction zone 10
  • the first mixed air stream 5 mixes with the tertiary air 10 to form a second mixed air stream 11.
  • the air outlet 12 is a high-inductance Zuluf- tauslass to further increase the air flow ultimately moved in space.
  • the device according to the invention further comprises a bypass line 14, through which a bypass flow 15 can be driven.
  • FIGS. 2 and 3 the structure of a device 20 can be seen more precisely, as on the basic wiring diagram shown in FIG. 1:
  • the device 20 has a primary air connection 18, to which the primary air line 1 originating from a central air conditioning unit, not shown, can be connected. Subsequent to the primary air connection 18 is a combined nozzle and distribution piece 19, which on the one hand takes over the function of the branch 16 of the bypass lines 14 and the an ⁇ forms the transition of the primary air line 1 in the first induction zone 3. At its end facing the first induction zone 3, the nozzle and distributing piece 19 has a plurality of nozzles 21, through which a partial volume flow of the primary air stream 2 exits and in front of which the first induction zone 3 forms.
  • the total of six nozzle sets 21, each with two nozzles, are arranged on a circle about a longitudinal axis 22 through the device 20 and supplied with primary air through obliquely outwardly extending supply sections 23.
  • a secondary air flow, indicated by the arrows 24, enters into the device 20 in the region between adjacent bypass lines 14 and a metal jacket 25, which adjoins the first induction zone 3, made of a sheet metal material.
  • the metal jacket 25 includes a cylindrical heat exchanger 26, which is encased by a surrounding thermal barrier coating 27 which is disposed within the Blech ⁇ mantle 25.
  • the bypass lines 14 also run parallel to the Llvesach ⁇ se 22 in the insects ⁇ space between the metal jacket 25 and the heat exchanger 26 and leave the metal jacket 25 at its opposite end in the axial direction.
  • the first mixed air stream 5 formed in the first induction zone 3, or directly thereafter enters the large-volume nozzle 28 downstream of the heat exchanger 26 in a tempered state.
  • the second induction zone 9 Following the nozzle 28 is the second induction zone 9. End portions 29 of the bypass lines 14 also end at the level of the outlet of the nozzle 28. In the second induction zone 9 is exited by the bypass lines 14 auxiliary air streams 17, the amount of induced Tertiary air - indicated by the arrow 10 - significantly increased and increases the stability of Tertiär Kunststoffindutation.
  • FIGS. 4a-4c show that, following the second induction zone 9, a collecting piece 30 is connected with which the second mixed air stream 1 l / formed from the first temperature-controlled mixed air stream 5, the auxiliary air streams 17 and the tertiary air stream 10 is collected and collected via a at the tapered end of the outlet supports 31 is passed to an air outlet 32 in the form of a vortex module system.
  • the collecting piece 30 consists of a first cylindrical portion 33 and a subsequent fan portion 34, which tapers in the vertical direction (FIG. 4 a), but widens in the horizontal direction (FIG. 4 b), whereby the entire cross-sectional area and thus also the flow resistance remains substantially constant.
  • FIGS. 4 a and 4 b show a support frame 35 consisting of longitudinal struts 36 and transverse struts 37. Furthermore, FIG. 4 b shows a feed line 38 and a return line 39 for the cylindrical heat exchanger 6 operated in countercurrent. Furthermore, a condensate line 40 can still be seen, with which condensate possibly accumulating in the heat exchanger 6 can be discharged.
  • FIGS. 5 and 6 finally show the installation situation of the device 20 shown only schematically in FIG.
  • the device 20 may be disposed within a space between a suspended false ceiling 43 and a supporting ceiling arranged above it, but not shown. Such spaces are usually in hotel rooms above the entrance, from the typical way the bathroom / toilet goes off.
  • the air outlet openings 41 of the vortex module system 32 are located behind a Einströmöffhung 43 'in a vertically oriented partition 44, which closes the gap between the supporting ceiling and the false ceiling 43 to the room.
  • Arrows 11 in FIG. 5 show the second mixed air stream as it enters the room to be ventilated and tempered, for example a hotel room.
  • the clarified by the arrow 2 primary air flow is supplied to the device 20 via a not shown, also located in the intermediate space primary air line.
  • the entry of the secondary air (arrows 4) and tertiary air (arrows 10) is illustrated in FIG.
  • the aforementioned air streams enter through slit-shaped openings laterally next to and below the device 20 from the space into the intermediate space.
  • the induction takes place within the ceiling space in each case over the entire circumference of Vor ⁇ device 20, both in the first and in the second induction zone.
  • the primary air flow 102 is divided into a first partial flow 102 I, which is supplied to the first induction zone 103, and a second partial flow 102 II.
  • the second partial flow 102 II flows through a bypass line 114 and then enters a third induction zone 118 in which the partial volume flow 102 II acting as the bypass volumetric flow 115 induces a tertiary air flow 110.
  • the tertiary air flow 110 and the bypass volumetric flow 115 mix below the third induction zone 118 to form a third mixed air flow 119.
  • the first mixed air flow 105 is induced by the third mixed air flow 119 having a higher impulse
  • the third air flow is tuned to another Mixed air flow 119 is induced by the first mixing air flow 105.
  • Second partial volume flow 102 II of the primary air flow 12 m 3 / h

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Air Conditioning (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

La présente invention concerne un procédé pour aérer et tempérer une pièce, de l'air secondaire (4) étant induit au moyen d'un courant d'air primaire (2), et un premier courant d'air mélangé (5) étant formé à partir du courant d'air primaire (2) et du courant d'air secondaire (4). Le premier courant d'air mélangé (5) est mélangé dans une seconde zone d'induction (9), à un courant d'air tertiaire (10) ou à un courant d'air mélangé contenant un courant d'air tertiaire (10), pour ainsi former un second courant d'air mélangé (11) qui alimente finalement la pièce par une sortie d'air mélangé (20). Pour obtenir une stabilité élevée dans les deux zones d'induction (3,9), le premier courant d'air primaire (5) reçoit en plus du courant d'air tertiaire (10) ou du courant d'air mélangé contenant un courant d'air tertiaire (10), un autre courant d'air primaire (15) ou un courant d'air mélangé contenant un autre courant d'air primaire (15).
EP05777665.0A 2004-08-13 2005-08-03 Procede et dispositif pour aerer et temperer une piece Not-in-force EP1776548B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004039546A DE102004039546A1 (de) 2004-08-13 2004-08-13 Verfahren und Vorrichtung zur Belüftung und Temperierung eines Raumes
PCT/EP2005/008421 WO2006018138A1 (fr) 2004-08-13 2005-08-03 Procede et dispositif pour aerer et temperer une piece

Publications (2)

Publication Number Publication Date
EP1776548A1 true EP1776548A1 (fr) 2007-04-25
EP1776548B1 EP1776548B1 (fr) 2016-08-03

Family

ID=35056958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05777665.0A Not-in-force EP1776548B1 (fr) 2004-08-13 2005-08-03 Procede et dispositif pour aerer et temperer une piece

Country Status (4)

Country Link
EP (1) EP1776548B1 (fr)
DE (1) DE102004039546A1 (fr)
RU (1) RU2375639C2 (fr)
WO (1) WO2006018138A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8597208B2 (en) 2005-09-06 2013-12-03 Covidien Lp Method and apparatus for measuring analytes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281592A (en) * 1979-08-06 1981-08-04 Barber-Colman Company Double induction unit
US4657178A (en) * 1980-09-05 1987-04-14 Camp Dresser & Mckee Mixing box
DE3204350A1 (de) * 1981-02-11 1982-09-09 Brandi Ingenieure GmbH, 5000 Köln Vorrichtung zur klimatisierung von raeumen, insbesondere bueroraeumen, nach dem induktionsprinzip
DE3114528C2 (de) * 1981-04-10 1983-03-17 Paul Pollrich GmbH & Co, 4050 Mönchengladbach Luftverteilgerät zur Temperierung
FR2720484B1 (fr) * 1994-05-27 1996-08-09 Spirec Dispositif de régulation de la température d'un local à air conditionné.
SE9802216L (sv) * 1998-06-23 1999-12-24 Stifab Farex Ab Anordning för ventilation och kylning och/eller värmning av lokaler
FR2833339B1 (fr) * 2001-12-10 2004-03-05 Bense Dominique Dispositif de traitement d'air

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006018138A1 *

Also Published As

Publication number Publication date
RU2007109072A (ru) 2008-09-20
RU2375639C2 (ru) 2009-12-10
EP1776548B1 (fr) 2016-08-03
DE102004039546A1 (de) 2006-02-23
WO2006018138A1 (fr) 2006-02-23

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