WO1981001026A1 - Arrangement and method in sound damping of conduits for ventilation in framework elements - Google Patents
Arrangement and method in sound damping of conduits for ventilation in framework elements Download PDFInfo
- Publication number
- WO1981001026A1 WO1981001026A1 PCT/SE1980/000234 SE8000234W WO8101026A1 WO 1981001026 A1 WO1981001026 A1 WO 1981001026A1 SE 8000234 W SE8000234 W SE 8000234W WO 8101026 A1 WO8101026 A1 WO 8101026A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conduits
- slab
- connection
- transverse
- sound damping
- Prior art date
Links
- 238000013016 damping Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000009423 ventilation Methods 0.000 title abstract description 4
- 239000004567 concrete Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
-
- 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
- F24F13/24—Means for preventing or suppressing noise
Definitions
- This invention relates to arrangement and method in sound damping of ventilating conduits in frame-work elements.
- Parallel conduits in the direction of the span of prefabricated framework elements are often used for branching off the ventilation system in a building.
- sons of the conduits in the framework elements are conneced in one end to a feeding conduit, and the air is thereafter passed on through the conduits to exhausting means connected to a conduit somewhere along its length, or at its end.
- exhausting means connected to a conduit somewhere along its length, or at its end.
- a transverse connection is established between two separate parallel conduits so that these conduits are connected in series for the ventilating air, which hereby is passed in zigzag through the conduits in the frame-work elements.
- the invention relates to a construction, which is so formed, that the framework acts as sound damping means for noice from fans and sound, which is transmitted from one room to another via the ventilating piping and the invention also relates to a method for producing said transverse connections between the conduits in the framework.
- the invention consists of an arrangement where the parallel conduits in the framework are closed in their ends by means of concrete plugs, which normally are casted on the building place after the erection of the framework elements and which conduits have at least one connection which is placed transversely between two conduits and which is placed at that end of the framework elements, which is opposite to the inlet end of the conduits for the ventiiating air.
- two or more conduits may be connected in series by means of the transverse connection.
- Fig, 1 shows two embodiments of the invention, where a concrete slab is cut and taken apart in its two parts.
- Fig. 2 is a perspective view of a concrete slab in a third embodiment of the invention.
- Fig. 3 is a side view of a concrete slab according to Fig. 2.
- Fig. 4 is a cross section in the plane of the slab where three of the mentioned embodiments are shown in the form of a complete product.
- Fig. 1 is thus a perspective view showing a concrete slab 1, and the slab is cut transversely so that a small piece 2 has been parted, whereby the openings of five conduits 3, 4, 5, 6 and 7 are shown, A transverse connection 8 has been opened between the conduits 3 and 4 by that a cavity has been cut down in both conduit 3 and the conduit 4 from the upper side 9 of the slab before the concrete has been set. After that cavity has been cut and after that the concrete has set, the cavi vity is covered in the upper side 9 by means of plastic, a rubber plug or other suitable material. The plug is shown by phantom lines and is denoted by 10. The plug only reaches the upper edge of the conduits 3 and 4 and it is thus seen, that a connection 8 is established between the two conduits 3 and 4 under the plug 10. See also Fig. 3 and the following.
- FIG. 1 A second embodiment of the transverse connection is also shown in Fig. 1 from which the connection between conduits 5, 6 and 7 can be seen.
- This connection has been established by that a boring has been drilled transversely to the conduits 5, 6 and 7 and ending in the conduit 5.
- the boring is parallel to the upper side 9.
- the boring is plugged between the edge 11 of the slab and the conduit 7 by a plug 10 and this can be done after that the slab has been set by inserting an expander plug or the like in the boring. Concrete or plastic can also be used for this purpose.
- This embodiment is also shown in Fig. 4 according to what will be described below. It is obvious that according to the two embodiments described any number of conduits can be connected though in the first case it has been described a connection between the two conduits and the second embodiment includes a connection between three conduits.
- a third embodiment is shown for establishing the connection between the conduits.
- This is shown by a connection being established between the conduits 3, 4 and 5.
- the conduits are opening in the the front side 13 of the slab.
- the connection is formed by that a notch 14 has been made between the conduits 3 and 4 and between the conduits 4 and 5 in the front side 13.
- the notch is so deep that its cross section area is that of the conduits.
- the notch 14 is covered by a plate 15 or by other suitable means, see Fig. 3. It can be seen that hereby the notch 14 is closed at the front edge 13 and that thus the connection is made between all the three conduits 3, 4 and 5, see also Fig. 4.
- Fig. 4 is a cross section along the upper side 9 of the concrete slab 1.
- Fig. 4 shows how the conduits 3, 4, 5 and 6 are connected so a medium can pass in series through all four conduits.
- Initially all conduits are opened in the front side 16 of the slab 1 while the oppsite front side 17 has no openings to the conduits.
- the connection between the conduits 4 and 5 has been established according to the third described embodiment and thus the embodiment, which can be seen from Figs. 2 and 3.
- a notch has been made in the front side 16 between the conduits 4 and 5 whereby the interconnection 14 is made and the notch has been covered by the plate 15 against the front side
- transverse connection between two conduits could be established by drilling a bore from the side 18 all the way through the slab whereafter this boring could be plugged between conduits 4 and 5 in the left end of the slab, whereby the medium is passed in series through all four conduits according to the arrows in Fig. 4.
- the passage for the medium through the conduits can of course follow another path than the one shown in Fig. 4. It is also possible to establish transverse connections between two conduits by that a hole is drilled from a mouth of anyone of the conduits 3-7 and that the drilling is carried out in inclined direction to the longitudinal axis of the conduits and thus into an adjacent conduit.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Duct Arrangements (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Pipe Accessories (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8080901859T DE3066852D1 (en) | 1979-10-05 | 1980-10-01 | SOUND DAMPING IN VENTILATION CONDUITS |
FI811637A FI68697C (en) | 1979-10-05 | 1981-05-27 | ANALIFICATION OF VENTILATIONS AND CHANNELS |
DK235981A DK235981A (en) | 1979-10-05 | 1981-05-29 | DEVICE AND PROCEDURES FOR SOUND MUTING OF VENTILATION CHANNELS IN BEAM LAYER ELEMENTS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7908293 | 1979-10-05 | ||
SE7908293A SE422609B (en) | 1979-10-05 | 1979-10-05 | DEVICE AND PROCEDURE FOR SOUND MUTING OF VENTILATION CHANNELS IN BED CLOVER |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1981001026A1 true WO1981001026A1 (en) | 1981-04-16 |
Family
ID=20338990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1980/000234 WO1981001026A1 (en) | 1979-10-05 | 1980-10-01 | Arrangement and method in sound damping of conduits for ventilation in framework elements |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0044304B1 (en) |
BE (1) | BE888283A (en) |
DE (1) | DE3066852D1 (en) |
DK (1) | DK235981A (en) |
FI (1) | FI68697C (en) |
NO (1) | NO152947C (en) |
SE (1) | SE422609B (en) |
WO (1) | WO1981001026A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0436962A2 (en) * | 1990-01-09 | 1991-07-17 | Teletron Ltd. | Eavesdropping-proof room and sound dampening devices therefor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US640176A (en) * | 1899-02-23 | 1900-01-02 | Heinrich Lehmann | Process of producing hollow walls and roofs of cast mortar. |
FR1227466A (en) * | 1959-03-13 | 1960-08-22 | hollow reinforced concrete elements and method of assembly thereof | |
SE349842B (en) * | 1970-12-21 | 1972-10-09 | Straengbetong Ab | |
DE2308479B2 (en) * | 1973-02-21 | 1976-05-26 | Witt, Henrik Torsten; Witt, Karsten Christian; Nästved (Dänemark) | VENTILATION ELEMENT |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE800331C (en) * | 1949-03-26 | 1950-10-30 | Buderus Eisenwerk | Process for improving the thermal insulation properties of precast concrete components such as slabs, stones and the like. Like., with continuous cavities |
-
1979
- 1979-10-05 SE SE7908293A patent/SE422609B/en not_active IP Right Cessation
-
1980
- 1980-10-01 WO PCT/SE1980/000234 patent/WO1981001026A1/en active IP Right Grant
- 1980-10-01 EP EP80901859A patent/EP0044304B1/en not_active Expired
- 1980-10-01 DE DE8080901859T patent/DE3066852D1/en not_active Expired
-
1981
- 1981-04-03 BE BE0/204376A patent/BE888283A/en not_active IP Right Cessation
- 1981-05-27 FI FI811637A patent/FI68697C/en not_active IP Right Cessation
- 1981-05-29 DK DK235981A patent/DK235981A/en not_active Application Discontinuation
- 1981-06-01 NO NO811847A patent/NO152947C/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US640176A (en) * | 1899-02-23 | 1900-01-02 | Heinrich Lehmann | Process of producing hollow walls and roofs of cast mortar. |
FR1227466A (en) * | 1959-03-13 | 1960-08-22 | hollow reinforced concrete elements and method of assembly thereof | |
SE349842B (en) * | 1970-12-21 | 1972-10-09 | Straengbetong Ab | |
DE2308479B2 (en) * | 1973-02-21 | 1976-05-26 | Witt, Henrik Torsten; Witt, Karsten Christian; Nästved (Dänemark) | VENTILATION ELEMENT |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0436962A2 (en) * | 1990-01-09 | 1991-07-17 | Teletron Ltd. | Eavesdropping-proof room and sound dampening devices therefor |
EP0436962A3 (en) * | 1990-01-09 | 1992-07-08 | Teletron Ltd. | Eavesdropping-proof room and sound dampening devices therefor |
US5239792A (en) * | 1990-01-09 | 1993-08-31 | Teletron Limited | Eavesdropping-proof room and sound dampening devices therefor |
Also Published As
Publication number | Publication date |
---|---|
EP0044304B1 (en) | 1984-03-07 |
NO152947B (en) | 1985-09-09 |
NO152947C (en) | 1985-12-18 |
FI68697B (en) | 1985-06-28 |
FI811637L (en) | 1981-05-27 |
DE3066852D1 (en) | 1984-04-12 |
EP0044304A1 (en) | 1982-01-27 |
DK235981A (en) | 1981-05-29 |
NO811847L (en) | 1981-06-01 |
FI68697C (en) | 1985-10-10 |
SE7908293L (en) | 1981-04-06 |
SE422609B (en) | 1982-03-15 |
BE888283A (en) | 1981-07-31 |
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