CN104006936A - Device and method for detecting air leakage and fireproof performance of fireproof valve - Google Patents
Device and method for detecting air leakage and fireproof performance of fireproof valve Download PDFInfo
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- CN104006936A CN104006936A CN201410248078.5A CN201410248078A CN104006936A CN 104006936 A CN104006936 A CN 104006936A CN 201410248078 A CN201410248078 A CN 201410248078A CN 104006936 A CN104006936 A CN 104006936A
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- dolly
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Abstract
The invention discloses a device and method for detecting air leakage and fireproof performance of a fireproof valve. The device comprises a fireproof test furnace. A first connecting pipe is connected with a furnace mouth of the fireproof test furnace and provided with a thermocouple. A fireproof valve test piece is connected between the first connecting pipe and a second connecting pipe. A gas flow meter and a pressure balancer are installed on the second connecting pipe. The second connecting pipe is sequentially connected with a gas flow adjustor, a connecting cooling device and a third connecting pipe backwards. A test piece pressure balancer, a pressure difference guide-out device, a pipeline thermocouple and a flow balancer are sequentially installed on the third connecting pipe. The third connecting pipe is connected with a high-temperature-resistant flexible connecting pipe and then connected with a fourth connecting pipe, an electric adjusting valve and a fifth connecting pipe backwards. The fifth connecting pipe is connected with an air wing cover. The air wing cover and an induced draft fan are connected into a whole through a connecting sheath. The induced draft fan, the electric adjusting valve and the cooling device are respectively installed on a trolley. According to the device and method, air leakage and fireproof performance of the fireproof valve can be detected, operation is convenient, fewer workers are needed, and work efficiency is high.
Description
Technical field
The present invention relates to the device and method for detection of fire-protection valve, especially the fire-protection valve in building ventilation and smoke evacuation system.
Background technology
Building ventilation and smoke evacuation system fire-protection valve will carry out quality testing, wherein two detections: the one, and the air leakage rate check under environment temperature, the 2nd, the detection of fire performance.
In the GB15930-2007 carrying out at present:
One, the air leakage rate check under environment temperature:
(1) at ambient temperature, make fire resisting damper or smoke exhaust fire damper blade both sides keep the gas-static of 300Pa ± 15Pa poor, the inleakage in its unit area (standard state) should be not more than 500m
3/ (m
2h);
(2) at ambient temperature, make fire resisting damper or smoke exhaust fire damper blade both sides keep the gas-static of 1000Pa ± 15Pa poor, the inleakage in its unit area (standard state) should be not more than 700m
3/ (m
2h);
Two, fire performance detects:
(1) fire testing starts in rear 1min, and the heat detector of fire resisting damper should move, valve closing;
(2) fire testing starts in rear 3min, and the heat detector of smoke exhaust fire damper should move, valve closing;
(3) in the fire resistance period of regulation, make fire resisting damper or smoke exhaust fire damper blade both sides keep the gas-static of 300Pa ± 15Pa poor, the leakage cigarette amount (standard state) in its its unit area should be not more than 700m
3/ (m
2h);
(4) in the fire resistance period of regulation, should there is not flame more than continuous 10s in fire resisting damper or smoke-exhaust fire valve surface;
(5) fire resistance period of fire resisting damper or smoke exhaust fire damper should be not less than 1.50h.
Above-mentioned two detections at present adopt respectively a covering device to carry out separately, and detection efficiency is all very low, and pick-up unit also operates convenient not, and it is many to take personnel.In the urgent need to a kind of simple operation, efficiency is high, the personnel that take are few pick-up unit.
Summary of the invention
The shortcoming existing in order to overcome above-mentioned prior art, the object of the present invention is to provide a kind of device and method for detection of fire-protection valve inleakage and fire performance, complete the detection of fire-protection valve inleakage and fire performance, simple operation, the personnel that take are few, work efficiency is high.
In order to address the above problem, the device for detection of fire-protection valve inleakage and fire performance provided by the invention; Comprise fire test furnace; Fire test furnace is provided with fire door, is provided with a plurality of gas nozzles on fire test furnace, and fire testing furnace bottom is provided with air outlet, and air outlet is connected with fire test furnace pressure fan, and fire test furnace top arranges waste gas outlet; A plate is connected the first connecting pipe with the fire door of fire test furnace, the first connecting pipe is provided with five thermopairs;
The other end of the first connecting pipe is equipped with fire resisting damper test specimen, at the other end of fire resisting damper test specimen, the second connecting pipe is housed; Gas meter and pressure equalizer are housed on the second connecting pipe, end at the second connecting pipe connects gas flow adjuster by flange, the other end of gas flow adjuster connects cooling device, the other end of cooling device arranges flange, and be connected with the 3rd connecting pipe by this flange, test specimen pressure equalizer and pressure reduction let-off gear(stand) and pipeline thermal galvanic couple, flow equalizer are housed successively on the 3rd connecting pipe;
The other end of the 3rd connecting pipe is connected with one end of high-temperature flexible connecting pipe by flange, the other end at high-temperature flexible connecting pipe is connected with the 4th connecting pipe by flange, the other end at the 4th connecting pipe is equipped with electric control valve, the other end at electric control valve is equipped with the 5th connecting pipe, the 5th connecting pipe is connected with wind wing cover, connects sheath wind wing cover and induced draft fan are connected as a single entity;
Described induced draft fan, electric control valve, cooling device are arranged on respectively on a dolly;
The bottom of described three dollies is provided with two universal wheels and two castors, and described universal wheel is arranged on dolly rear end, and described castor is at the front end of dolly; On same dolly, between two castors, driven axle is housed, at the middle part of driven axle, be equipped with by movable sprocket, chain will be connected with drive sprocket by movable sprocket, drive sprocket is contained on the output shaft of reducer casing, the input shaft of reducer casing is connected with motor, and described motor and reducer casing are arranged on below the base plate of dolly.
Further technical scheme; This pick-up unit also comprises PLC master controller; Described a plurality of gas nozzle comprises side gas nozzle, positive gas nozzle; Described gas nozzle is connected with gas nozzle regulator; Described induced draft fan is connected with induced draft fan controller; Described fire resisting damper test specimen is connected with fire resisting damper shutter;
Described gas nozzle regulator, described fire test furnace pressure fan are electrically connected to described PLC master controller respectively;
The described thermopair on the first connecting pipe, the described fire resisting damper shutter of being arranged on is electrically connected to described PLC master controller respectively;
The described gas meter on the second connecting pipe, the described pressure equalizer of being arranged on is electrically connected to described PLC master controller respectively;
Described gas flow adjuster is electrically connected to described PLC master controller;
Described test specimen pressure equalizer, pressure reduction let-off gear(stand) and pipeline thermal galvanic couple, the flow equalizer being arranged on the 3rd connecting pipe is electrically connected to described PLC master controller respectively;
Described electric control valve is electrically connected to described PLC master controller;
Described induced draft fan controller is electrically connected to described PLC master controller;
The described motor being arranged on each dolly is also electrically connected to described PLC master controller respectively.
Method based on the above-mentioned device for detection of fire-protection valve inleakage and fire performance provided by the invention, comprises step:
Fire resisting damper test specimen is arranged between the first connecting pipe and the second connecting pipe with opening;
PLC master controller, by the wind speed of induced draft fan controller regulating and controlling induced draft fan, makes wind speed reach setting and makes steady air current;
Described fire testing furnace igniting;
When the thermopair on described the first connecting pipe measures temperature 50 C, on-test,, until reach the Elevated Temperature Conditions of regulation; After temperature is elevated to fire-protection valve and closes, PLC master controller regulates the wind speed of induced draft fan automatically, makes the scope of the poor maintenance regulation of gas-static before and after fire resisting damper test specimen;
PLC master controller is controlled gas nozzle flow by gas nozzle regulator, and controls the wind speed of pressure fan simultaneously, makes fire testing furnace pressure reach setting;
Gather gas temperature and flow in the first connecting pipe, the second connecting pipe, the 3rd connecting pipe, the 4th connecting pipe, the 5th connecting pipe, and the atmospheric pressure in acquisition test process; Described PLC master controller draws testing result data according to the data substitution formula collecting;
After detection, fire resisting damper test specimen and the first connecting pipe, the second connecting pipe are taken apart; By PLC master controller, start the motor of each dolly, make the drive sprocket of each dolly rotate drive chain movement, the passive sprocket rotation of chain-driving, rotates driven axle and castor is rotated, and universal wheel can change the traffic direction of dolly; Fire resisting damper test specimen is taken off;
The fire resisting damper test specimen to be detected more renewing.
The invention has the beneficial effects as follows: the device in this invention can complete the detection of fire-protection valve inleakage and fire performance, and simple operation, the personnel that take are few, work efficiency is high, and can adapt to the detection without the fire-protection valve of specification.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is described further:
Fig. 1 is the structural representation of fire-protection valve pick-up unit in the present invention;
Fig. 2 is that the local A of Fig. 1 is to zoomed-in view;
Fig. 3 is the control principle block diagram of pick-up unit in the present invention;
In figure: 1 fire test furnace, 2 side gas nozzles, 3 positive gas nozzles, 4 waste gas outlets, 5 web joints, 6 thermopairs, 7 first connecting pipes, 8 fire resisting damper test specimens, 9 second connecting pipes, 10 gas meters, 11 pressure equalizers, 12 flanges, 13 gas flow adjusters, 14 cooling devices, 15 test specimen pressure equalizers, 16 pressure reduction let-off gear(stand)s, 17 pipeline thermal galvanic couples, 18 flow equalizers, 19 high-temperature flexible connecting pipes, 20 the 4th connecting pipes, 21 electric control valves, 22 the 5th connecting pipes, 23 wind wing covers, 24 connect sheath, 25 induced draft fans, 26 first dollies, 27 ground, 28 universal wheels, 30 reducer casinges, 31 castors, 33 motors, 34 second dollies, 35 drive sprockets, 36 driven axles, 37 chains, 38 the 3rd dollies, 39 set bolts, 40 set bolts, 41 by movable sprocket, 42 fire doors, 43 flanges, 44 the 3rd connecting pipes, 45 flanges, 46 flanges, 47 base plates, 48 air outlets.
Embodiment
As shown in Figure 1, should comprise PLC controller, fire test furnace 1, flow harvester, temperature collecting device, pressure acquisition device and the Mechanical Moving part that can move on ground 27 for detection of the device of fire-protection valve inleakage and fire performance.
Described fire test furnace 1 is provided with fire door 42, is provided with a plurality of gas nozzles on fire test furnace 1, and described a plurality of gas nozzles comprise side gas nozzle 2, positive gas nozzle 3; Described gas nozzle is connected with gas nozzle regulator.
Fire test furnace 1 bottom is provided with air outlet 48, and air outlet 48 is connected with fire test furnace pressure fan, and fire test furnace 1 top arranges waste gas outlet 4.A plate 5 is connected the first connecting pipe 7 with the fire door 42 of fire test furnace, the first connecting pipe 7 is provided with five thermopairs 6, for detection of the temperature data gathering in the first connecting pipe 7.
The other end of the first connecting pipe 7 is equipped with fire resisting damper test specimen 8, at the other end of fire resisting damper test specimen 8, the second connecting pipe 9 is housed.Known described fire resisting damper test specimen 8 is connected with fire resisting damper shutter.Gas meter 10 and pressure equalizer 11 are housed on the second connecting pipe 9, end at the second connecting pipe 9 connects gas flow adjuster 13 by flange 12, the other end of gas flow adjuster 13 connects cooling device 14, the other end of cooling device 14 arranges flange 43, and be connected with the 3rd connecting pipe 44 by this flange 43, test specimen pressure equalizer 15 and pressure reduction let-off gear(stand) 16 and pipeline thermal galvanic couple 17, flow equalizer 18 are housed successively on the 3rd connecting pipe 44.
The other end of the 3rd connecting pipe 44 is connected with one end of high-temperature flexible connecting pipe 19 by flange 45, the other end at high-temperature flexible connecting pipe 19 is connected with the 4th connecting pipe 20 by flange 46, the other end at the 4th connecting pipe 20 is equipped with electric control valve 21, the other end at electric control valve 21 is equipped with the 5th connecting pipe 22, the 5th connecting pipe 22 is connected with wind wing cover 23, connects sheath 24 wind wing cover 23 and induced draft fan 25 are connected as a single entity.Described induced draft fan 25 is connected with induced draft fan controller.
Described induced draft fan 25, electric control valve 21, cooling device 14 are arranged on respectively on a dolly.And three dollies are designated as respectively the first dolly 26, the second dolly 34, the 3rd dolly 38.In Fig. 1, illustrated, wind wing cover 23, connection sheath 24, induced draft fan 25 are positioned on the first dolly 26; The 4th connecting pipe 20, electric control valve 21 are positioned on the second dolly 34; The second connecting pipe 9, cooling device 14, the 3rd connecting pipe 44 are positioned on the 3rd dolly 38.
As shown in Figure 1, 2, the bottom of described each dolly is provided with two universal wheels 28 and two castors 31, and described universal wheel 28 is arranged on dolly rear end, and described castor 31 is at the front end of dolly; On same dolly, 31 of two castors, driven axle 36 is housed, at the middle part of driven axle 36, be equipped with by movable sprocket 41, chain 37 will be connected with drive sprocket 35 by movable sprocket 41, drive sprocket 35 is contained on the output shaft of reducer casing 30, the input shaft of reducer casing 30 is connected with motor 33, set bolt 39 and set bolt 40 respectively motor 33 and reducer casing 30 are arranged on dolly base plate 47 below.
The relative position relation that 'fornt', 'back' in foregoing description is just taked for convenience of description, can not be interpreted as absolute position and form the restriction to protection domain.
The control principle of this fire-protection valve pick-up unit is as shown in Figure 3: the pressure fan of described gas nozzle regulator, described fire test furnace is electrically connected to described PLC master controller respectively; The described thermopair 6 on the first connecting pipe 7, the described fire resisting damper shutter of being arranged on is electrically connected to described PLC master controller respectively; Described gas meter 10, the described pressure equalizer 11 being arranged on the second connecting pipe 9 is electrically connected to described PLC master controller respectively; Described gas flow adjuster 13 is electrically connected to described PLC master controller; Described test specimen pressure equalizer 15, pressure reduction let-off gear(stand) 16 and pipeline thermal galvanic couple 17, the flow equalizer 18 being arranged on the 3rd connecting pipe 44 is electrically connected to described PLC master controller respectively; Described electric control valve 21 is electrically connected to described PLC master controller.Described induced draft fan controller is electrically connected to described PLC master controller; The described motor being arranged on each dolly is also electrically connected to described PLC master controller respectively.
In this pick-up unit, the concrete structure of gas nozzle regulator, gas meter 10, pressure equalizer 11, gas flow adjuster 13, cooling device 14, test specimen pressure equalizer 15, pressure reduction let-off gear(stand) 16, flow equalizer 18, electric control valve 21, wind wing cover 23, connection sheath 24, induced draft fan 25 is prior art, can directly by prior art, obtain.
Detection method based on the above-mentioned device for detection of fire-protection valve inleakage and fire performance, comprises step:
Fire resisting damper test specimen 8 is arranged between the first connecting pipe 7 and the second connecting pipe 9 with opening;
PLC master controller, by the wind speed of induced draft fan controller regulating and controlling induced draft fan 25, makes wind speed reach setting and makes steady air current;
Described fire test furnace 1 igniting;
When the thermopair 6 on described the first connecting pipe 7 measures temperature 50 C, on-test,, until reach the Elevated Temperature Conditions of regulation; After temperature is elevated to fire-protection valve 8 and closes, PLC master controller regulates the wind speed of induced draft fan 25 automatically, makes the scope of the poor maintenance regulation of gas-static of fire resisting damper test specimen 8 front and back;
PLC master controller is controlled gas nozzle 2 flows by gas nozzle regulator, and controls the wind speed of pressure fan 48 simultaneously, makes fire test furnace 1 internal pressure reach setting;
Gather gas temperature and flow in the first connecting pipe, the second connecting pipe, the 3rd connecting pipe, the 4th connecting pipe, the 5th connecting pipe, and the atmospheric pressure in acquisition test process; Described PLC master controller draws testing result data according to the data substitution formula collecting;
After detection, fire resisting damper test specimen 8 and the first connecting pipe 7, the second connecting pipe 9 are taken apart; By PLC master controller, start the motor 33 of each dolly, make the drive sprocket 35 of each dolly rotate 37 motions of drive chain, chain 37 drives and is rotated by movable sprocket 41, driven axle 36 is rotated and castor 31 is rotated, dolly moves on ground 27, and universal wheel 28 can change the traffic direction of dolly; Fire resisting damper test specimen 8 is taken off;
The fire resisting damper test specimen to be detected more renewing.
Owing to there being the movably syndeton between dolly and each several part to be convenient to dismounting, the therefore fire resisting damper of the different sizes of installation and measuring very easily and thickness.
Claims (3)
1. the device for detection of fire-protection valve inleakage and fire performance; It is characterized in that, comprise fire test furnace; Fire test furnace is provided with fire door, is provided with a plurality of gas nozzles on fire test furnace, and fire testing furnace bottom is provided with air outlet, and air outlet is connected with fire test furnace pressure fan, and fire test furnace top arranges waste gas outlet; A plate is connected the first connecting pipe with the fire door of fire test furnace, the first connecting pipe is provided with five thermopairs;
The other end of the first connecting pipe is equipped with fire resisting damper test specimen, at the other end of fire resisting damper test specimen, the second connecting pipe is housed; Gas meter and pressure equalizer are housed on the second connecting pipe, end at the second connecting pipe connects gas flow adjuster by flange, the other end of gas flow adjuster connects cooling device, the other end of cooling device arranges flange, and be connected with the 3rd connecting pipe by this flange, test specimen pressure equalizer and pressure reduction let-off gear(stand) and pipeline thermal galvanic couple, flow equalizer are housed successively on the 3rd connecting pipe;
The other end of the 3rd connecting pipe is connected with one end of high-temperature flexible connecting pipe by flange, the other end at high-temperature flexible connecting pipe is connected with the 4th connecting pipe by flange, the other end at the 4th connecting pipe is equipped with electric control valve, the other end at electric control valve is equipped with the 5th connecting pipe, the 5th connecting pipe is connected with wind wing cover, connects sheath wind wing cover and induced draft fan are connected as a single entity;
Described induced draft fan, electric control valve, cooling device are arranged on respectively on a dolly;
The bottom of described three dollies is provided with two universal wheels and two castors, and described universal wheel is arranged on dolly rear end, and described castor is at the front end of dolly; On same dolly, between two castors, driven axle is housed, at the middle part of driven axle, be equipped with by movable sprocket, chain will be connected with drive sprocket by movable sprocket, drive sprocket is contained on the output shaft of reducer casing, the input shaft of reducer casing is connected with motor, and described motor and reducer casing are arranged on below the base plate of dolly.
2. a kind of device for detection of fire-protection valve inleakage and fire performance according to claim 1; It is characterized in that: this pick-up unit also comprises PLC master controller; Described a plurality of gas nozzle comprises side gas nozzle, positive gas nozzle; Described gas nozzle is connected with gas nozzle regulator; Described induced draft fan is connected with induced draft fan controller; Described fire resisting damper test specimen is connected with fire resisting damper shutter;
The pressure fan of described gas nozzle regulator, described fire test furnace is electrically connected to described PLC master controller respectively;
The described thermopair on the first connecting pipe, the described fire resisting damper shutter of being arranged on is electrically connected to described PLC master controller respectively;
The described gas meter on the second connecting pipe, the described pressure equalizer of being arranged on is electrically connected to described PLC master controller respectively;
Described gas flow adjuster is electrically connected to described PLC master controller;
Described test specimen pressure equalizer, pressure reduction let-off gear(stand) and pipeline thermal galvanic couple, the flow equalizer being arranged on the 3rd connecting pipe is electrically connected to described PLC master controller respectively;
Described electric control valve is electrically connected to described PLC master controller;
Described induced draft fan controller is electrically connected to described PLC master controller;
The described motor being arranged on each dolly is also electrically connected to described PLC master controller respectively.
3. based on the detection method for detection of fire-protection valve inleakage and fire performance claimed in claim 2, it is characterized in that, comprise step:
Fire resisting damper test specimen is arranged between the first connecting pipe and the second connecting pipe with opening;
PLC master controller, by the wind speed of induced draft fan controller regulating and controlling induced draft fan, makes wind speed reach setting and makes steady air current;
Described fire testing furnace igniting;
When the thermopair on described the first connecting pipe measures temperature 50 C, on-test,, until reach the Elevated Temperature Conditions of regulation; After temperature is elevated to fire-protection valve and closes, PLC master controller regulates the wind speed of induced draft fan automatically, makes the scope of the poor maintenance regulation of gas-static before and after fire resisting damper test specimen;
PLC master controller is controlled gas nozzle flow by gas nozzle regulator, and controls the wind speed of pressure fan simultaneously, makes fire testing furnace pressure reach setting;
Gather gas temperature and flow in the first connecting pipe, the second connecting pipe, the 3rd connecting pipe, the 4th connecting pipe, the 5th connecting pipe, and the atmospheric pressure in acquisition test process; Described PLC master controller draws testing result data according to the data substitution formula collecting;
After detection, fire resisting damper test specimen and the first connecting pipe, the second connecting pipe are taken apart; By PLC master controller, start the motor of each dolly, make the drive sprocket of each dolly rotate drive chain movement, the passive sprocket rotation of chain-driving, rotates driven axle and castor is rotated, and universal wheel can change the traffic direction of dolly; Fire resisting damper test specimen is taken off;
The fire resisting damper test specimen to be detected more renewing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248078.5A CN104006936B (en) | 2014-06-05 | 2014-06-05 | A kind of device and method for detecting fire-protection valve inleakage and fire resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248078.5A CN104006936B (en) | 2014-06-05 | 2014-06-05 | A kind of device and method for detecting fire-protection valve inleakage and fire resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104006936A true CN104006936A (en) | 2014-08-27 |
| CN104006936B CN104006936B (en) | 2017-01-04 |
Family
ID=51367695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410248078.5A Expired - Fee Related CN104006936B (en) | 2014-06-05 | 2014-06-05 | A kind of device and method for detecting fire-protection valve inleakage and fire resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104006936B (en) |
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| CN105146725A (en) * | 2015-10-30 | 2015-12-16 | 中国烟草总公司郑州烟草研究院 | Method for detecting air leakage rate of interior of roller in roller processing course for tobaccos to be produced into shreds |
| CN106153320A (en) * | 2016-07-15 | 2016-11-23 | 公安部四川消防研究所 | A kind of dual stage overlaps parallel fire resisting damper fire resistance test device |
| CN107255648A (en) * | 2017-05-23 | 2017-10-17 | 闫靖媛 | A kind of fire-protection ring fire resistance experimental rig |
| CN111059587A (en) * | 2018-10-17 | 2020-04-24 | 宁波方太厨具有限公司 | Central flue system and sealing state detection method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107255648A (en) * | 2017-05-23 | 2017-10-17 | 闫靖媛 | A kind of fire-protection ring fire resistance experimental rig |
| CN107255648B (en) * | 2017-05-23 | 2020-07-17 | 闫靖媛 | Fire-resistant performance test device for fire-proof ring |
| CN111059587A (en) * | 2018-10-17 | 2020-04-24 | 宁波方太厨具有限公司 | Central flue system and sealing state detection method thereof |
| CN111059587B (en) * | 2018-10-17 | 2021-10-01 | 宁波方太厨具有限公司 | Central flue system and sealing state detection method thereof |
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| Publication number | Publication date |
|---|---|
| CN104006936B (en) | 2017-01-04 |
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