CN1243583C - Ventilator grills - Google Patents
Ventilator grills Download PDFInfo
- Publication number
- CN1243583C CN1243583C CNB018089909A CN01808990A CN1243583C CN 1243583 C CN1243583 C CN 1243583C CN B018089909 A CNB018089909 A CN B018089909A CN 01808990 A CN01808990 A CN 01808990A CN 1243583 C CN1243583 C CN 1243583C
- Authority
- CN
- China
- Prior art keywords
- ventilator
- header board
- ventilator grill
- back plate
- plate
- 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.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/065—Physical fire-barriers having as the main closure device materials, whose characteristics undergo an irreversible change under high temperatures, e.g. intumescent
-
- 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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/082—Grilles, registers or guards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Building Environments (AREA)
Abstract
A ventilator grill comprises a front panel (1) formed with a plurality of ventilation openings (2) and a rear panel (5) formed over its entire surface with a plurality of discrete openings (2). Lands between the ventilation openings (2) of the front panel (1) are coated or covered on their inner faces with intumescent material (3).
Description
The present invention relates to a kind of ventilator grill, the particularly a kind of ventilator grill that can operate automatically to stop cigarette to pass through from the opening in wall or the plate.
Known ventilator grill comprises multilayer or the multi-disc intumescent material that is placed on the appropriate location, and these intumescent materials expand when being heated, and close the grid opening, thereby the barrier layer of Smoke prevention and/or fire is provided.In GB-A-2334675 and GB-A-2272836, announced the example of such ventilator grill.A shortcoming of many such ventilator grills is that as 30 minutes, it just can not stop cigarette and/or flame flow after surpassing one limited period.In many cases, a period of time is not enough to withdraw from personnel effectively from a construction zone that is subjected to smoke and fire flame invasion and attack like this.
From GB-A-2334675, can also know, can a slice intumescent material be set the form with cellular expansion bar perhaps how spaced apart from each other a ventilator grill inside.In both cases, sheet or bar all separate with the inner surface of grid header board.This validity when being arranged in breaking out of fire is lower, suppresses the air stream by ventilator when normal the use easily.
Determine that ventilator grill is the time period that a large amount of intumescent materials can be kept perfectly at a major criterion of the value of fire and/or cigarette.Typically, a large amount of intumescent materials of piling up later of grid trend fracture after under the situation that fire is being arranged about 30 minutes.Along with opening appears in the intumescent material, flame and cigarette arrive opposite side from a side of grid, personnel's safety in the harm building.
Plan of the present invention provides a kind of ventilator grill with intumescent material, and it can typically surpass two hours in a time period that significantly increases, stop cigarette and/or flame flow.
According to an aspect of the present invention, provide a kind of ventilator grill, it comprises the header board and the back plate that comprises the plate of an a slice silk screen or a perforation that are formed with many elongated ventilating openings; Ventilator grill is characterised in that many intumescent materials are applied on the inner surface of header board along of elongated open or the border of each longitudinal extension, this layout makes under higher temperature, intumescent material expands also rapidly, expansion fully, block the opening of header board, the dilatancy material is not applied intumescent material on it back plate remains on suitable position.
The front and rear panel of grid can be connected to each other by any conventional method.Like this, for example, front and rear panel may lay respectively at each side of a chamber.A scavenger fan that is installed in the middle part can be between chamber interior and front and rear panel.Typically, back plate remains on the back of an edge or lip, and this edge or lip are formed on around the chamber surfaces of adjoining.Typically, back plate is by steel or aluminium manufacturing.
By embodiment the present invention is described below in conjunction with accompanying drawing, wherein:
Fig. 1 is the rearview according to the header board of ventilator grill of the present invention;
Fig. 2 is the vertical view according to the back plate of ventilator of the present invention; With
Fig. 3 is the part according to the side view of a selectable ventilator grill of the present invention.
From accompanying drawing 1 as can be seen, ventilator grill has a header board that is formed with many elongated open 21 of typically being made by steel or aluminium, and air can pass the wall at grid place by these elongated open under the normal condition.Along top edge regional between each ventilating opening or lower edge is a slice intumescent material 3.These expansion pieces comprise a kind of can the expansion rapidly with the material (as graphite) of complete shutoff ventilating opening 2 when being heated.Expansion piece 3 extends along the whole length of each ventilating opening 2.Under higher temperature, these expansion pieces are also complete expansion rapidly, covers whole rear surfaces of plate.
The mode of use intumescent material illustrated in fig. 1 is known.A problem of known ventilator grill is, intumescent material has lost its integrality rapidly, and from the ventilator surface isolation, thereby allow the smoke and fire flame to pass ventilator grill, arrive unaffected zone.
In the present invention, grid comprises a back plate 5 that is formed by steel wire or aluminium wire netting 6, as shown in Figure 2.Back plate is connected to header board 1 by any conventional method.Back plate 5 is separated by the thickness of the wall at ventilator grill place and the rear surface of header board 1 usually.Under higher temperature, net 6 keeps the intumescent material that expands in position, thereby has kept the validity of grid as the protector of smoke and fire in a time period that significantly increases.
Evidence can passed through above prevention cigarette or flame in two hours time period according to grid of the present invention.
In embodiment shown in Figure 3, header board 1 extends back and forms a shell 7, and a scavenger fan 9 has been installed by portion within it.In this embodiment, whole casing 7 has been full of intumescent material when breaking out of fire.
In service, when normally using, air by opening 2 and net 6 from an effluent of grid to opposite side.By convention, grid is installed in the inside of wall or plate, the flush of the header board of grid and back plate and wall, grid be installed within the walls or these surfaces of wall in.
During breaking out of fire, the higher temperature that fire causes expands expansion piece 3 rapidly and covers the rear surface of whole header board, shutoff opening 3.Finally, the whole space between the front and rear panel 1,5 is filled.Thereby cigarette and/or fire can not pass grid.
The net 6 of back plate 5 keeps intumescent material in position, thereby has kept the integrality of dilatancy material.The preservation of integrality has increased the value of grid at fire and/or cigarette significantly.The front is mentioned, and the integrality of evidence dilatancy material and the grid that therefore produces stop that the validity of fire and cigarette has surpassed two hours.
Above-mentioned explanation only is the embodiment according to ventilator grill of the present invention, under the situation that does not deviate from the described true scope of invention claims, can easily do various modifications to the present invention.
Claims (4)
1. ventilator grill, it comprises that one is formed with the header board (1) of many elongated ventilating openings (2) and the back plate (5) of a plate that comprises an a slice silk screen (6) or a perforation; This ventilator grill is characterised in that: many intumescent materials (3) are applied on the inner surface of header board (1) along of described elongated ventilating opening or the border of each longitudinal extension, this layout makes under higher temperature, intumescent material expands also rapidly, expansion fully, thereby block the opening of header board (1), the dilatancy material is not applied intumescent material on it back plate (5) maintains.
2. ventilator grill as claimed in claim 1 is characterized in that: described forward and backward plate lays respectively at each side of a chamber.
3. ventilator grill as claimed in claim 2 is characterized in that: a scavenger fan is installed between the described forward and backward plate, is positioned at the chamber middle part.
4. as claim 2 or 3 described ventilator grills, it is characterized in that: described back plate remains on the back of an edge or lip, and this edge or lip are formed on around the chamber surfaces of adjoining.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0010661A GB2361868B (en) | 2000-05-04 | 2000-05-04 | Ventilator grills |
| GB0010661.7 | 2000-05-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1427732A CN1427732A (en) | 2003-07-02 |
| CN1243583C true CN1243583C (en) | 2006-03-01 |
Family
ID=9890873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018089909A Expired - Fee Related CN1243583C (en) | 2000-05-04 | 2001-04-23 | Ventilator grills |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1278575A1 (en) |
| CN (1) | CN1243583C (en) |
| AU (1) | AU4863401A (en) |
| GB (1) | GB2361868B (en) |
| WO (1) | WO2001083033A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090260303A1 (en) * | 2002-07-05 | 2009-10-22 | Securo As | Method for fire blocking in a ventilation device and a fireblocking ventilation device |
| NO319191B1 (en) * | 2002-07-05 | 2005-06-27 | Geir Jensen | flame Stopper |
| ES2245174B2 (en) * | 2003-04-28 | 2007-04-01 | Schako Metallwarenfabrik Ferdinand Schad Kg | INTUMESCENT GASKET FOR FIREPLACES COMPUTERS APPLICABLE TO VENTILATION AND SIMILAR DUCTS. |
| CN102331372B (en) * | 2011-07-20 | 2013-02-06 | 辽宁忠旺集团有限公司 | Method for testing pressure of grate at air vent of apron board of equipment compartment of motor train unit |
| DE202014103155U1 (en) | 2014-07-09 | 2014-08-07 | Svt Brandschutz Vertriebsgesellschaft Mbh International | Fire-resistant ventilation grille |
| US11009253B2 (en) * | 2016-07-25 | 2021-05-18 | Brandguard Vents | Vent structure |
| FR3122098B1 (en) * | 2021-04-26 | 2023-06-16 | Speedinnov | Vehicle interior fire barrier |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CS213620B1 (en) * | 1977-12-23 | 1982-04-09 | Eduard Vasatko | Packing blowable foil |
| GB2159051B (en) * | 1981-07-23 | 1986-10-01 | Dixon International Ltd | Panel device for a ventilation opening |
| GB2107182B (en) * | 1981-07-23 | 1985-08-21 | Dixon International Ltd | Panel device for a ventilation opening |
| GB2272836B (en) * | 1992-07-23 | 1996-09-11 | Environmental Seals Ltd | Improvements in or relating to smoke barriers |
| GB9319137D0 (en) * | 1993-09-15 | 1993-11-03 | Dufaylite Dev Ltd | Fire seal |
| GB2291474B (en) * | 1994-07-16 | 1997-12-17 | Environmental Seals Ltd | Fire proofed housings for extractor fans |
| GB2331923B (en) * | 1996-05-09 | 1999-07-21 | Environmental Seals Ltd | Thatched roof coverings |
| GB9722507D0 (en) * | 1997-10-27 | 1997-12-24 | Lorient Polyprod Ltd | An intumescent strip assembly |
| GB9803856D0 (en) * | 1998-02-25 | 1998-04-22 | Kovacs Laurence K | Improved intumescent ventilator |
-
2000
- 2000-05-04 GB GB0010661A patent/GB2361868B/en not_active Expired - Fee Related
-
2001
- 2001-04-23 AU AU48634/01A patent/AU4863401A/en not_active Abandoned
- 2001-04-23 CN CNB018089909A patent/CN1243583C/en not_active Expired - Fee Related
- 2001-04-23 WO PCT/GB2001/001812 patent/WO2001083033A1/en not_active Application Discontinuation
- 2001-04-23 EP EP01921666A patent/EP1278575A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB2361868B (en) | 2003-07-02 |
| CN1427732A (en) | 2003-07-02 |
| AU4863401A (en) | 2001-11-12 |
| GB2361868A (en) | 2001-11-07 |
| GB0010661D0 (en) | 2000-06-28 |
| WO2001083033A1 (en) | 2001-11-08 |
| EP1278575A1 (en) | 2003-01-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |