AU597857B2 - Ventilation ducting - Google Patents
Ventilation ducting Download PDFInfo
- Publication number
- AU597857B2 AU597857B2 AU27436/88A AU2743688A AU597857B2 AU 597857 B2 AU597857 B2 AU 597857B2 AU 27436/88 A AU27436/88 A AU 27436/88A AU 2743688 A AU2743688 A AU 2743688A AU 597857 B2 AU597857 B2 AU 597857B2
- Authority
- AU
- Australia
- Prior art keywords
- tube
- inner tube
- series
- outer tube
- apertures
- 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.)
- Ceased
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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
Description
5-.97357®R COMMONWEALTH bF AUSTRALIA Patents Act 1952 COMPLETE SPECIFICATION (original) FOR OFFICE USE Application Number: Lodged: P17340 Class 17th March 1988 Int. Class tt
I
I. ri I t w r t tt~ t z t r~.
4 Cf C C V
CC
IC C I C I I SC Ill ii 1 a it V I I C C Complete Specification Lodged: Accepted: Published: Priority: J* j dY)iand Related Art: TO BE COMPLETED BY :.PPLICANT Name of Applicant: ACME CANVAS PTY. LTD.
Address of Applicant: 164 Beechboro Road, Bayswater, in the State of Western Australia, Commonwealth of Australia.
Actual Inventor: ANTHONY CECIL EAGLETON Address for Service:- Cl- Wray Associates Primary Industry House 239 Adelaide Terrace Perth Western Australia 6000.
-00 1 I 1 1-3 20/ 12/GS Complete Specification for the invention entitled: "VENTILATION DUCTING" The following statement -is a full description of this invention, including the best method of performing it known to me:in.- -2- THIS INVENTION relates to ventilation ducting.
One particular application of the ventilation ducting of Uthe invention relates to installations in mines for conducting fresh cool or heated air to the working part of a mine. In such installations it is necessary not only to provide fresh air to the workings of the mine but also to either heat or cool the air being supplied to the workings to provide satisfactory ambient conditions at the work face.
It is an object of this invention to provide ducting which facilitates the insulation of the airflow duct carrying 4 fresh conditioned air.
In one form the invention resides in a ventilation duct comprising an outer tube and an inner tube both outer and inner tubes being formed of flexible sheet material said inner tube being supported within the outer tube to be spaced from the inner wall of the outer tube when inflated, said inner tube being adapted to be connected to a forced air supply, a first series of apertures provided through the wall of the inner tube and a second series of Vit. apertures provided through the wall of the outer tube and U circumferentially spaced from the first series whereby the airflow within the inner tube flows through the first series of apertures into the space between the inner and outer tubes and through the second series of apertures out of the outer tube.
Preferably said first series of apertures extend in a generally axial direction along the inner tube.
-3- Preferably the inner tube is supported substantially centrally within the outer tube.
The invention will be more fully understood in the light of the following description of one specific embodiment.
The description is made with reference to the accompanying drawing which is a schematic cross-sectional configuration of a ventilation duct according to the embodiment.
The embodiment comprises an insulated ventilation duct for use in mines comprising an outer tube formed of flexible sheet material which is joined along opposite edges to provide a hem 12. A plurality of eyelets (not shown) are provided in the hem 12 in order that the ducting can be supported from the roof of a mine shaft.
An inner tube 13 is located substantially centralJy within r the outer tube 11 and is also formed of sheet material which is joined along opposite edges to provide a hem 14 which is received at its upper end in the hem 12 of the outer tube 11 whereby the inner tube 13 is supported from the outer tube 11 by the hem 14. The inner tube is adapted to be connected at one end to a source of conditioned air while the outer tube 11. is sealed at either end to the outer walls of the inner tube 13. A first series of apertures 15 are located at axially spaced intervals along the length of the inner tube 13 at locations to either side of the hem 14 to provide for an Sairflow from within the inner tube 13 to the space between Sthe inner and outer tubes 13 and 11 which serves to "inflate" the outer tube 11ii and maintain the spaced Alrelationship between the tubes. Furthermore the air which is bled into the annular space between the tubes 13 and 11 serves to provide thermal insulation to inhibit the loss or gaining of heat by the air being carried by the inner ~I i: i i I 4tube 13. The outer tube 11 is also formed with a series of axially spaced apertures 16 along its lower portion which serves to exhaust the air from the annular space between the tubes 13 and 11 and also serve as drainage holes for any condensates which may gather in the space.
It should be appreciated that the scope of the present invention need not be limited to the particular scope of the embodiment described above and in particular need not be limited to the particular application of the embodiment described above.
*r I t x
II
4$ It Sit
IT
,el e C C i:I.
9(4
Claims (4)
1. A ventilation duct comprising an outer tube and an inner tube both outer and inner tubes being formed of flexible sheet material said inner tube being supported within the outer tube to be spaced from the inner wall of the outer tube when inflated, said inner tube being adapted to be connected to a forced air supply, a first series of apertures provided through the wall of the inner tube and a second series of apertures provided through the wall of the outer tube and circumferentially spaced from the first series whereby the airflow within the inner tube flows through the first series of apertures into the space between the inner and outer tubes and through the second series of apertures out of the outer tube.
2. The ventilation duct of claim 1 wherein said first series of apertures extend in a generally axial direction C C along the inner tube.
3. The ventilation duct of claim 1 or claim 2 wherein the inner tube is supported substantially centrally within the outer tube. I. eit
4. The ventilation duct as claimed in any one of the C t t 1 preceding claims wherein the inner and outer tubes are formed from sheet material joined adjacent to the opposite edges to provide a hem, said hem of the inner tube being 'f provided within the hem of the outer tube to support the S inner tube within the outer tube. lid 'or i 7 6 A ventilation duct substantially as hereinbefore described with reference to the accompanying drawing. DATED this FOURTEENTH day of MARCH 1990 ACME CANVAS PTY LTD Applicant r t 4r rI WRAY ASSOCIATES Perth, Western Australia Patent Attorneys for Applicant rit r set rre c t r
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU27436/88A AU597857B2 (en) | 1988-03-17 | 1988-12-20 | Ventilation ducting |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPI734088 | 1988-03-17 | ||
| AUPI7340 | 1988-03-17 | ||
| AU27436/88A AU597857B2 (en) | 1988-03-17 | 1988-12-20 | Ventilation ducting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2743688A AU2743688A (en) | 1989-10-12 |
| AU597857B2 true AU597857B2 (en) | 1990-06-07 |
Family
ID=25620250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU27436/88A Ceased AU597857B2 (en) | 1988-03-17 | 1988-12-20 | Ventilation ducting |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU597857B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU513896B2 (en) * | 1976-05-27 | 1981-01-15 | Tokan Kogyo K.K. | Thermo-plastic multi wall pipes |
-
1988
- 1988-12-20 AU AU27436/88A patent/AU597857B2/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU513896B2 (en) * | 1976-05-27 | 1981-01-15 | Tokan Kogyo K.K. | Thermo-plastic multi wall pipes |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2743688A (en) | 1989-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3633659A (en) | Roof constructions | |
| AU597857B2 (en) | Ventilation ducting | |
| CN1421352A (en) | Ventilating system for refrigerating container cargo hold | |
| EP0177904A3 (en) | Device for exchange of heat between two gases conducted in cross-flow to each other | |
| AU677532B2 (en) | Ventilation tubing | |
| MY118256A (en) | Heat exchanger for air conditioners | |
| US3334568A (en) | Fittings for electrical fluorescenttube lamps | |
| AU2016101088A4 (en) | A hollow ventilation twin duct segment and a method of forming same | |
| ATE313752T1 (en) | SEALING RING FOR MODULAR LINES AND MODULAR LINE WITH SUCH A SEALING RING | |
| ES2151335A1 (en) | Cooling device, especially for single-layer tunnel kiln for tiles | |
| GB9818305D0 (en) | Ventilating system | |
| JPH06313342A (en) | Void slub with equipment function | |
| CN210423101U (en) | Fan for ventilating pipeline | |
| DE69515308D1 (en) | FILLING DEVICE FOR INSULATING MATERIAL | |
| US2345938A (en) | Air outlet device | |
| PL352191A1 (en) | A method and means to create an individually controlled climate at a separate workstation in a room having a primary climate equipment | |
| SU905491A1 (en) | Ventilation partition | |
| GB2012901A (en) | Flexible Air Conduit Joint | |
| SU1474263A2 (en) | Method of moving inflated support in excavation of steep coal seams | |
| SE9001094L (en) | PIPE SYSTEM FOR AIR DISTRIBUTION IN A PAPER MACHINE | |
| SU1028958A1 (en) | Device for airing rooms | |
| CA1049784A (en) | Two-passage pipe, especially for air conditioning installations | |
| SU1571363A1 (en) | Device for diverting smoke gases from fuel-using plants and contaminated air from ventilation system | |
| GB2220055A (en) | Flue liner | |
| JPS57196023A (en) | Method and device for air conditioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |