CN1627330A - Device and method to detect the onset of fires - Google Patents
Device and method to detect the onset of fires Download PDFInfo
- Publication number
- CN1627330A CN1627330A CNA200410101132XA CN200410101132A CN1627330A CN 1627330 A CN1627330 A CN 1627330A CN A200410101132X A CNA200410101132X A CN A200410101132XA CN 200410101132 A CN200410101132 A CN 200410101132A CN 1627330 A CN1627330 A CN 1627330A
- Authority
- CN
- China
- Prior art keywords
- film
- input pipe
- pump orifice
- air
- described device
- 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
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
A device for detecting an onset of a fire includes a detector for recognizing a fire parameter, at least one feed line(3) having a suction opening(5), a fan that feeds air to the detector via the feed line(3), and a rubber-elastic part(1) including a film(2) disposed across an inside portion and defining a film opening(4) having a smaller diameter than a diameter of the suction opening. The rubber-elastic part(1) is disposed against the feed line(3) in a gas-tight manner. In addition, a method for cleaning the device including blowing a gas stream from an inside of the film to an outside of the film(2) through the film opening(4).
Description
Technical field
The present invention relates to a kind of and first corresponding method that is used to detect the device that catches fire and cleans this device of claim preamble.
Background technology
The present invention can be applied to all places that may catch fire in room or electronic device.Described in addition device can be applicable to exist by ATE * 95 and 137 place of blast area, for example in the industry that dust hazard is arranged (timber and ore grinding industry).In this device, by being arranged on the instrument that maybe will monitor in the room that to monitor or input pipe interior and that some pump orifices are arranged, in being used to discern the detecting device of combustion characteristic value, supply with room air or instrument sample continuously.If detecting device detects burning recognition feature value, an assessment unit that is electrically connected with detecting device is by signal of predetermined criteria output.Air out that the term input pipe not only refers to be given for indoor protection (Raumschutz) and the detector housing that leads is interior and the pipeline that sucks the cooling air of room or instrument by pump orifice, input pipe also can be the shroud of a suction funnel, collecting hood or T shape, and it is for example pacified on the air out grid that is contained in electronic device and thereby is located in the cooling main flow of instrument.The combustion characteristic value is interpreted as some physical parameters, and they stand measurable change in the environment that catches fire, for example solid or liquid or gas composition or the environmental radiation in environment temperature, the surrounding air.
By the known a kind of method of DE 196 05 638 C1 and a kind of device, be used to detect catching fire in the room or in the electronic device, the detecting device that comprises an identification combustion characteristic value, detecting device has at least one input pipe, it is arranged on the instrument that maybe will monitor in the room that will monitor or is interior and some pump orifices are arranged, and supplies with room air or instrument cooling air sample continuously by these pump orifices.Assessment unit be electrically connected with detecting device and when detecting device detects the combustion characteristic value by signal of predetermined criteria output.In order to adjust the free area of pump orifice, on pump orifice, paste a film, thereby reduce the free area of pump orifice.The shortcoming of this device is the increasing dust of deposition on the hole of pump orifice.Dust causes detection system to lose its ability to work gradually, the described type stated of preface be used for indoor protection with and the device preferably formed of input pipe by one or more pipeline, the pump orifice on pipeline is distributed in whole indoor by the spacing of rule.For example by DE 295 18042 U1 or known this method of DE 33 48 107 C2 and this device.Known here shortcoming obviously is that the detecting reliability of combustion characteristic value along with the increase from drawing-in type blower fan distance, descends owing to producing pressure drop in the pipeline.Adopting described method or device to be used for monitoring of tools, that is when for example being used to monitor electronic device, input pipe also can be made of a pipeline, its certain much shorter is so all pump orifices can be identical.Certainly, they must have different diameters when pump orifice quantity is different, because total suction area can only be in a little bandwidth range.
These must calculate by the physics theorem.Pump orifice can be processed in one/many input pipes by boring at the construction field (site).Based on the wall thickness of input pipe, in fact can on the hole of pump orifice, gather increasing dust.This causes detection system to lose its ability to work gradually.For fear of this point, need frequent and expensive maintenance.
Summary of the invention
Therefore, the objective of the invention is to develop a kind of device, it meanwhile should be low maintenance cost detecting the high sensitivity that high efficient is arranged and continue when whole monitored space catches fire.
This purpose is by reaching by the device of the feature of first claim and a kind of method that is used to clean this device.
The favourable design of dependent claims explanation the present invention.
By device regulation of the present invention, the part that same diameter can be arranged in input pipe and a caoutchouc elasticity can be arranged by the pump orifice that boring is made, it has a hole that diameter inside is less.This caoutchouc elasticity part not only seals the mouth of input pipe airtightly, and guarantee that the film both sides can carry, that is to say, by the hole on the film, air-flow can flow into input pipe and air-flow can flow out from input pipe, does not make the caoutchouc elasticity part produce blow-by with respect to input pipe.
Press prior art, have some SSs, sticking film on SS, so during along air-guiding in the other direction, the phenomenon that the film that can take place to stick from the outside through long service time breaks away from.This film that sticks is only applicable to and can limits reliably in the air-flow inflow device, and does not implement the outflow of air-flow from input pipe.
Advantageously, the film on the caoutchouc elasticity part is arranged to flat.In order to clean this device, the grit that has been deposited on the film is got rid of like this, that is, by a blower fan air-flow is from inside to outside blown out by the hole of film.Advantageously, this air-flow oppositely implements by the time interval of rule.For this reason, by a timer air-flow is blown at interval internally by preset time towards the film direction, thereby cause purifying continuously.
Advantageously, film adds adherent layer.In addition, advantageously add filtrator in the zone that pump orifice is determined.For this reason, can in the pump orifice location, a filtrator be installed along whole pipe.Can prevent that thus dust intrusion input pipe is interior and prevent to form the dust concentration that constitutes explosive mixture.The invention provides two kinds of possibilities and prevent to pollute pump orifice.Because the elastic film external diameter that uses is more much bigger than SS, so dust filter can cover pump orifice from the outside.For this reason, a dust filter is combined in the elastic membrane.Duty by air-flow supervisory system continuous and effective ground check dust filter.Dust filter also can be installed in the location of pump orifice along the whole pipe of input pipe so that increase filtering surface, the purification of filtrator or by recoil, clean or undertaken by replacing.
The advantage outstanding by the solution of the present invention is that all SSs obtain an inserts, and inserts has a thin film with good sliding properties in the location of SS.Employing prevents laying dust in the zone in hole to a great extent by the solution of the present invention.Another outstanding advantage of the present invention is that thin film has certain elasticity.If in the pump orifice zone, can deposit dust owing to the particular environment characteristic, dust will influence the functional reliability of " being used to detect the device that catches fire ", can add flushing out air successfully purify pump orifice this moment in input pipe, because because the pressure that improves makes film outside arched and dust is come off easily.
Adding flushing out air can be undertaken by the pressurized air at the air out place by the drawing-in type blower fan, or is undertaken by the bypass between fan blower and first pump orifice.Another kind of possibility is that the sense of rotation of drawing-in type blower fan is made in the other direction.Make input pipe become force pipe thus and with the air purification pump orifice that flows out.This also can carry out automatically.But here it should be noted that in rinse stage and interrupt catching fire detection.
Description of drawings
Describe the present invention in detail by embodiment and four accompanying drawings below.Wherein expression:
Fig. 1 has the caoutchouc elasticity part and the input pipe sectional view of filtrator is arranged along whole pipe;
Fig. 2 has the caoutchouc elasticity parts sectional view at the film of inside;
Fig. 3 has the input pipe of pump orifice; And
Fig. 4 has filtrator and is contained in the caoutchouc elasticity part of the film of central authorities.
Embodiment
Fig. 3 represents an input pipe 3 that has its pump orifice 5.Pump orifice 5 can pass through grit no problemly, so can cause the pollution detection device continuously.In addition, the xsect of mouth 5 is at the flow section that must coordinate in some cases to requiring.
Fig. 2 represents a caoutchouc elasticity part 1, and it has a groove that is used for fixing 8, and wherein internal diameter is provided with a film 2, and film has a hole 4 that is used for air-flow.Film 2 can bear the load of identical size to both sides.This caoutchouc elasticity part 1 is packed in the delivery pipe 3.
Fig. 1 represents input pipe 3, the caoutchouc elasticity part 1 of wherein packing into, and it has a film 2 with a hole 4 in the edge thereon.It is favourable doing like this, because be not formed on caoutchouc elasticity part 1 and the dead angle between the film 2 of inside, and can deposition foul particle in the dead angle.The hole 4 of film 2 stops thick particle by the filtrator 7 around whole pipe 3.
Fig. 4 represents a caoutchouc elasticity part 1, and it is provided with a filtrator 6 above SS 4.In as Fig. 1,2 and 4, all take measures to prevent serious pollution in all parts of expression, promptly can make air-flow no problemly, consequently outwards take away the dust that may accumulate oppositely by hole 4.In addition, because being installed, filtrator 6,7 also prevented to invade thick particle.
The invention discloses a kind of functions of use widely, especially in the field of dust hazard.
By by design of the present invention,, can utilize the advantage of catching fire and detecting that a plurality of sensors-suction warning horn is arranged in the dust hazard field by using filtrator and purifying easily by film insert.
The Reference numeral list
1. rubber part
2. film
3. pipe/input pipe
4. SS
5.3 mouth
6. the filtrator above pump orifice
7. along the filtrator of whole pipe
8. groove
Claims (7)
1. be used to detect the device that catches fire, comprise the detecting device of an identification combustion characteristic value, the input pipe (3) that at least one is provided with pump orifice (5), a blower fan of supplying with the detecting device air by input pipe (3), it is characterized by: in pump orifice (5), have a caoutchouc elasticity part (1), it has a film in inside (2), film has a hole (4) that diameter is less, wherein, part (1) is seated on the input pipe (3) airtightly.
2. according to the described device of claim 1, it is characterized by: the film (2) on caoutchouc elasticity part (1) is arranged to flat.
3. according to the described device of claim 1, it is characterized by: film (2) is added with an adherent layer.
4. according to the described device of claim 1 to 3, it is characterized by: a filtrator (6) is established in pump orifice (5) region.
5. according to the described device of claim 1 to 4, it is characterized by: in pump orifice (5) region, settle a filtrator (7) along whole pipe.
6. according to the described device of claim 1 to 5, it is characterized by: caoutchouc elasticity part (1) is seated on the mouth (5) of input pipe (3) airtightly by a ring groove (8).
7. be used to clean method, it is characterized by: one air-flow is from inside to outside blown out by the hole (4) of film (2) according to right 1 described device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10358531A DE10358531A1 (en) | 2003-12-13 | 2003-12-13 | Apparatus and method for detecting incipient fires |
| DE10358531.1 | 2003-12-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1627330A true CN1627330A (en) | 2005-06-15 |
| CN100501788C CN100501788C (en) | 2009-06-17 |
Family
ID=34485375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410101132XA Expired - Fee Related CN100501788C (en) | 2003-12-13 | 2004-12-13 | Device and method to detect the onset of fires |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20050128098A1 (en) |
| EP (1) | EP1542188B1 (en) |
| CN (1) | CN100501788C (en) |
| AT (1) | ATE335266T1 (en) |
| DE (2) | DE10358531A1 (en) |
| RU (1) | RU2004136274A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618383B (en) * | 2009-07-24 | 2013-01-09 | 上海华魏光纤传感技术有限公司 | Device and method for automatically cleaning flame detector |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009031099A1 (en) * | 2009-06-29 | 2010-12-30 | Ista International Gmbh | Smoke alarm device and method for checking the contamination of smoke openings |
| ES2416529T3 (en) | 2010-11-29 | 2013-08-01 | Minimax Gmbh & Co Kg | Method and device for fire detection in volumes |
| DE202010017579U1 (en) | 2010-11-29 | 2012-03-02 | Minimax Gmbh & Co. Kg | Apparatus for fire detection in volumes |
| US11543057B2 (en) | 2019-07-09 | 2023-01-03 | Honeywell International Inc. | Universal pipe sleeve junction for an aspirated smoke detection system |
| CN116758694B (en) * | 2023-06-16 | 2023-12-08 | 广东钧逸建筑工程有限公司 | Automatic alarm and ringing device for fire control |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH521649A (en) * | 1970-07-31 | 1972-04-15 | Cerberus Ag | Fire alarm device |
| AT371583B (en) * | 1980-11-24 | 1983-07-11 | Schaechter Friedrich | DEVICE FOR KEEPING THE FLAME SIZE OF A SMALL BURNER OPERATED WITH LIQUID GAS, PREFERABLY A LIGHTER BURNER |
| DD200961A1 (en) * | 1981-10-01 | 1983-06-22 | Werner Bose | SEALING MOUNT FOR CABLE INTRODUCTION TO ELECTRICAL APPLIANCES |
| DE3348107C2 (en) * | 1983-08-30 | 1988-01-21 | Securiton Ag, Zollikofen, Bern, Ch | Smoke suction system of a line smoke alarm |
| US4814766A (en) * | 1987-12-07 | 1989-03-21 | Domingue Willard A | Fire alarm and heat detection system and apparatus |
| US4937562A (en) * | 1987-12-26 | 1990-06-26 | Hochiki Corp. | Moisture-proof ionization smoke detector |
| US4975688A (en) * | 1988-09-22 | 1990-12-04 | Gonzales Ronald A | Particulate detector disabling and protecting system |
| US5687450A (en) * | 1994-09-10 | 1997-11-18 | Stein & Co. Gmbh | Machine, such as a vacuum cleaner, which exhausts a clean gas, which machine has a protective bumper |
| DE29518042U1 (en) * | 1995-11-14 | 1996-01-25 | Wagner Alarm Sicherung | Fire detector |
| DE19605638C5 (en) * | 1996-02-15 | 2004-10-14 | Wagner Alarm- Und Sicherungssysteme Gmbh | Method and device for detecting incipient fires |
| DE19605842C1 (en) * | 1996-02-16 | 1997-04-24 | Wagner Alarm Sicherung | De-icing device for suction opening of fire-detection system |
| CA2367809C (en) * | 2001-01-19 | 2012-03-20 | Bill Chambers | Tamper indicator for a smoke detector |
| DE10125687B4 (en) * | 2001-05-25 | 2005-06-16 | Wagner Alarm- Und Sicherungssysteme Gmbh | Device for detecting sources of fire or gas contamination |
| JP3934423B2 (en) * | 2002-01-11 | 2007-06-20 | ホーチキ株式会社 | Scattered smoke detector |
-
2003
- 2003-12-13 DE DE10358531A patent/DE10358531A1/en not_active Ceased
-
2004
- 2004-12-07 EP EP04028927A patent/EP1542188B1/en active Active
- 2004-12-07 DE DE502004001093T patent/DE502004001093D1/en active Active
- 2004-12-07 AT AT04028927T patent/ATE335266T1/en not_active IP Right Cessation
- 2004-12-10 RU RU2004136274/12A patent/RU2004136274A/en not_active Application Discontinuation
- 2004-12-10 US US11/009,426 patent/US20050128098A1/en not_active Abandoned
- 2004-12-13 CN CNB200410101132XA patent/CN100501788C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618383B (en) * | 2009-07-24 | 2013-01-09 | 上海华魏光纤传感技术有限公司 | Device and method for automatically cleaning flame detector |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE335266T1 (en) | 2006-08-15 |
| CN100501788C (en) | 2009-06-17 |
| EP1542188B1 (en) | 2006-08-02 |
| DE502004001093D1 (en) | 2006-09-14 |
| RU2004136274A (en) | 2006-05-20 |
| DE10358531A1 (en) | 2005-07-28 |
| EP1542188A1 (en) | 2005-06-15 |
| US20050128098A1 (en) | 2005-06-16 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20201213 |