CN203025929U - Air pipe fire testing apparatus - Google Patents
Air pipe fire testing apparatus Download PDFInfo
- Publication number
- CN203025929U CN203025929U CN 201220736234 CN201220736234U CN203025929U CN 203025929 U CN203025929 U CN 203025929U CN 201220736234 CN201220736234 CN 201220736234 CN 201220736234 U CN201220736234 U CN 201220736234U CN 203025929 U CN203025929 U CN 203025929U
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- CN
- China
- Prior art keywords
- circulating line
- annular pipeline
- air pipe
- test section
- fire
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- 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
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- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
The utility model discloses an air pipe fire testing apparatus, belongs to the technical field of automatic fire alarm, and is manly used for carrying out a performance test on an air pipe smoke sensing fire detector. The air pipe fire testing apparatus provided by the utility model can be used for carrying out the performance test on response fire and dust resisting interferential capacity of the air pipe smoke sensing fire detector. The air pipe fire testing apparatus provided by the utility model comprises a box body, wherein the box body is composed of an annular pipeline; the side wall of the annular pipeline is composed of inner and outer layers of metal plates, heat insulation cotton is filled between the two layers of metal plates, one end of the annular pipeline is connected with an outlet of a fan, and the other end of the annular pipeline is connected with an inlet of the fan; the annular pipeline is respectively provided with an exhaust port, a smoke inlet and a testing region, wherein the middle of the annular pipeline in the testing region is provided with a detector installing window, and the annular pipeline of the upper stream of the testing region is provided with a dust filling inlet; and the annular pipeline at the testing region is provided with an air speed, temperature and humidity sensor and an optic densimeter, and the annular pipeline at the upper stream of the lower stream of the testing region is internally respectively provided with a damping screen.
Description
Technical field
The utility model belongs to the automatic fire alarm technical field, particularly relates to a kind of airduct fire test device, is mainly used in wind pipe smoke-sensing fire detector is carried out performance test.
Background technology
Chinese patent " wind pipe smoke-sensing fire detector " (ZL2009 1 0248828.8) is a kind of structural fire protection product for the detection of building heating ventilation air-conditioning system, it comes detection of fires by monitoring the smog in the heating ventilation air-conditioning system airduct, so the detection mode of wind pipe smoke-sensing fire detector and service condition and common spot-type smoke detector are very different.For example wind pipe smoke-sensing fire detector can be arranged on main ajutage inside and is used for surveying the fault that air-conditioning system itself occurs, and is as overheated in blower fan; Also can be arranged on and be used for surveying the whether breaking out of fire of this room in the room return air duct.In addition, can also be used to protect important equipment, for example the ventilation of mass computing machine host and exhaust airduct.Therefore, wind pipe smoke-sensing fire detector must adopt special-purpose testing equipment that its performance is tested.
In the world, American insurance business testing laboratory has formulated special product standard UL268A " Standard for Smoke Detectors for Duct Applications " for wind pipe smoke-sensing fire detector.Wherein in the 36th chapter-fire test, proposed a kind of for the annular testing conduit of test wind pipe smoke-sensing fire detector to the response performance of black smoke and white cigarette, long 9.3 meters of this pipeline, high 2 meters, xsect is 0.09m
2, in pipeline, wind speed range is 1.5m/s～20m/s, and black smog is produced by the burning normal heptane, and white smoke is produced by burn wood pellets.The pilot project of this testing conduit test only has black smoke and two kinds of white cigarettes, airduct for heating ventilation air-conditioning system, inner dust concentration is higher, therefore test the response condition of wind pipe smoke-sensing fire detector in the higher situation of dust concentration, can check the engineering adaptability of product, obvious this testing conduit is difficult to complete this function; In addition, wind speed range 1.5m/s in this testing conduit～20m/s is difficult to contain typical wind pipe smoke-sensing fire detector application places, the airduct that for example arranges in subway platform and tunnel, its inner wind speed has surpasses 25m/s, therefore require wind pipe smoke-sensing fire detector reliably to report to the police under the environment of 30m/s, so this testing conduit of UL268A can't be completed this test.
The ISO of International Standards Organization was in issue wind pipe smoke-sensing fire detector standard ISO 7240-22 " Fire detection and alarm systems-Part22:Smoke detection equipment for ducts " in 2006.Provide the example of an airduct fire test case, this casing is the test pipe of an annular, and long 10m, high 2m, xsect are 0.09 m
2, need to draw from the burning test chamber 1 smoke-intake pipe and 1 smoke exhaust pipe in test pipe, smog is circulated in pipeline and act on tested wind pipe smoke-sensing fire detector by blower fan.The equipment class of this test pipe and above-mentioned UL seemingly, except above-mentioned known shortcoming, also exist and to set up this chamber and flue gas by after the smoke-intake pipe of a segment length on the basis of burning test chamber, the problems such as the generation sedimentation of flue gas particle and coalescence make test result be difficult to reflect the true sensitivity of wind pipe smoke-sensing fire detector.
The utility model content
For the problem that prior art exists, the utility model provides a kind of can respond the airduct fire test device that ability that fire and anti-dust disturb is tested to wind pipe smoke-sensing fire detector.
To achieve these goals, the utility model adopts following technical scheme, and a kind of airduct fire test device comprises casing, and described casing is comprised of circulating line; The sidewall of circulating line is made of inside and outside double layer of metal plate, is filled with heat insulation foam between the double layer of metal plate; One end of described circulating line is connected with fan outlet, and the other end is connected with fans entrance, is respectively arranged with exhausr port, cigarette entrance and test section on described circulating line; Be provided with detector at the middle part of the circulating line of described test section window is installed, be provided with the dust inlet on the circulating line of the upstream of test section; Be provided with wind speed and Temperature Humidity Sensor and optical densitometer on the circulating line of described test section, be respectively arranged with honeycomb screen in the circulating line of described test section upstream and downstream.
The long 5.5m of described circulating line, high 2.1m, interior xsect are 0.16m
2Square.
Described test section is more than 6 times of the length of side of xsect square in circulating line apart from the distance of fan outlet.
Described casing is arranged on bottom bracket.
Be provided with the control rack on described bottom bracket, in the inside of controlling rack, electrical control gear and measurement instrument be installed, comprise the measurement instrument of controller, wind speed and Temperature Humidity Sensor of controller, the optical densitometer of blower fan.
Described blower fan is connected with circulating line by flange.
The beneficial effects of the utility model:
Airduct fire test device of the present utility model can respond the ability that fire and anti-dust disturb to wind pipe smoke-sensing fire detector and test, for the correct combination property of estimating wind pipe smoke-sensing fire detector provides scientific basis.
Description of drawings
Fig. 1 is the structural representation of airduct fire test device of the present utility model;
In figure, 1-casing, 2-circulating line, 3-bottom bracket, 4-blower fan, 5-flange, 6-exhausr port, 7-cigarette entrance, 8-dust inlet, 9-test section, 10-wind speed and Temperature Humidity Sensor, 11-optical densitometer, 12-honeycomb screen, 13-detector is installed window, 14-control rack.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of airduct fire test device comprises casing 1, and described casing 1 is comprised of circulating line 2; The sidewall of circulating line 2 is made of inside and outside double layer of metal plate, is filled with heat insulation foam between the double layer of metal plate; One end of described circulating line 2 is connected with blower fan 4 outlets, and the other end is connected with blower fan 4 entrances, is respectively arranged with exhausr port 6, cigarette entrance 7 and test section 9 on described circulating line 2; Be provided with detector at the middle part of the circulating line 2 of described test section 9 window 13 is installed, be provided with dust inlet 8 on the circulating line 2 of the upstream of test section 9; Be provided with wind speed and Temperature Humidity Sensor 10 and optical densitometer 11 on the circulating line 2 of described test section 9, be respectively arranged with honeycomb screen 12 in the circulating line 2 of described test section 9 upstream and downstreams.
The long 5.5m of described circulating line 2, high 2.1m, interior xsect is 0.16m
2Square.Described test section 9 is more than 6 times of the length of side of the interior xsect square of circulating line 2 apart from the distance of blower fan 4 outlet, that is: test section 9 apart from the distance of blower fan 4 outlets greater than 0.24m.
Described casing 1 is arranged on bottom bracket 3, be provided with on described bottom bracket 3 and control rack 14, in the inside of controlling rack 14, electrical control gear and measurement instrument are installed, comprise the measurement instrument of controller, wind speed and Temperature Humidity Sensor 10 of controller, the optical densitometer 11 of blower fan 4.
Described blower fan 4 is connected with circulating line 2 by flange 5.
During use, tested wind pipe smoke-sensing fire detector is fixed by screws in detector of the present utility model and installs on window 13, and two sampling pipes of wind pipe smoke-sensing fire detector are installed in the circulating line 2 that window 13 stretches into test section 9 by detector.Cigarette entrance 7 sucks flue gas by the pipe with induced draft fan, and flue gas can heat wooden unit or cotton cord generation by electric heating stove plate, also can put fuel oil by food tray and produce.Honeycomb screen 12 is used for making the air-flow that blower fan 4 blows out balancedly to act on tested wind pipe smoke-sensing fire detector.Control the interior electrical control gear of rack 14 by controlling advancing/exhaust smoke level of cigarette entrance 7 and exhausr port 6, just can be controlled at the satisfactory smoke density of the interior generation in test section 9.Optical densitometer 11 can be measured smoke density in real time, reaches the purpose of the ability of test wind pipe smoke-sensing fire detector response fire.Keep at blower fan 4 in the air-flow situation of test section 9 certain wind speed, dust inlet 8 by rotary micro dust generator to the interior injection dust of casing 1, just can measure the ability that the anti-dust of wind pipe smoke-sensing fire detector disturbs, it is the Chinese patent of ZL2006 2 0093887.4 that rotary micro dust generator can adopt the patent No..
Claims (6)
1. an airduct fire test device, is characterized in that comprising casing, and described casing is comprised of circulating line; The sidewall of circulating line is made of inside and outside double layer of metal plate, is filled with heat insulation foam between the double layer of metal plate; One end of described circulating line is connected with fan outlet, and the other end is connected with fans entrance, is respectively arranged with exhausr port, cigarette entrance and test section on described circulating line; Be provided with detector at the middle part of the circulating line of described test section window is installed, be provided with the dust inlet on the circulating line of the upstream of test section; Be provided with wind speed and Temperature Humidity Sensor and optical densitometer on the circulating line of described test section, be respectively arranged with honeycomb screen in the circulating line of described test section upstream and downstream.
2. airduct fire test device according to claim 1, is characterized in that the long 5.5m of described circulating line, high 2.1m, and interior xsect is 0.16m
2Square.
3. airduct fire test device according to claim 1, is characterized in that described test section is more than 6 times of the length of side of xsect square in circulating line apart from the distance of fan outlet.
4. airduct fire test device according to claim 1, is characterized in that described casing is arranged on bottom bracket.
5. airduct fire test device according to claim 4, it is characterized in that being provided with the control rack on described bottom bracket, in the inside of controlling rack, electrical control gear and measurement instrument are installed, comprise the measurement instrument of controller, wind speed and Temperature Humidity Sensor of controller, the optical densitometer of blower fan.
6. airduct fire test device according to claim 1, is characterized in that described blower fan is connected with circulating line by flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736234 CN203025929U (en) | 2012-12-28 | 2012-12-28 | Air pipe fire testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736234 CN203025929U (en) | 2012-12-28 | 2012-12-28 | Air pipe fire testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203025929U true CN203025929U (en) | 2013-06-26 |
Family
ID=48649895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220736234 Expired - Fee Related CN203025929U (en) | 2012-12-28 | 2012-12-28 | Air pipe fire testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203025929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093591A (en) * | 2012-12-28 | 2013-05-08 | 公安部沈阳消防研究所 | Fire disaster testing apparatus of air hose |
-
2012
- 2012-12-28 CN CN 201220736234 patent/CN203025929U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093591A (en) * | 2012-12-28 | 2013-05-08 | 公安部沈阳消防研究所 | Fire disaster testing apparatus of air hose |
| CN103093591B (en) * | 2012-12-28 | 2016-02-24 | 公安部沈阳消防研究所 | Airduct fire test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20161228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |