CN202916188U - Portable fast-detection device for ammonium phosphate salt dry powder extinguishing agent - Google Patents
Portable fast-detection device for ammonium phosphate salt dry powder extinguishing agent Download PDFInfo
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- CN202916188U CN202916188U CN 201220582056 CN201220582056U CN202916188U CN 202916188 U CN202916188 U CN 202916188U CN 201220582056 CN201220582056 CN 201220582056 CN 201220582056 U CN201220582056 U CN 201220582056U CN 202916188 U CN202916188 U CN 202916188U
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- extinguishing agent
- powder extinguishing
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- fast detecting
- ammonium phosphate
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Abstract
The utility model discloses a portable fast-detection device for an ammonium phosphate salt dry powder extinguishing agent. A first portable box is provided with a spectrophotometer; and a second portable box is provided with a liquid-transferring gun, volumetric flasks with volumes of 100 mL, 500 mL and 1,000 mL, a sieve set, an electronic balance, a chronograph, a measuring cylinder with a plug, beakers with volumes of 50 mL and 100 mL, a brown glass reagent bottle, an iron support, a glass funnel, a glass stirring rod, a sample spoon and an oxhorn spoon, wherein the sieve set includes a sieve, a cover and a base plate. The device can perform field tests on key indexes of the ammonium phosphate salt dry powder extinguishing agent such as the content, the bulk density, the anti-caking property, the water repellency, particle size distribution characteristics, and the like, can judge total quality of a product scientifically, and has the remarkable advantages of portability, high integration degree of the detection boxes, low weight and compact arrangement.
Description
Technical field
The utility model belongs to pick-up unit, especially relates to a kind of portable ammonium phosphate powder extinguishing agent device for fast detecting.
Background technology
Powder extinguishing agent is a kind of of large usage quantity in all fire extinguishing agent kinds, and in the kind of powder extinguishing agent, maximum with ammonium phosphate powder extinguishing agent (also being called ABC powder extinguishing agent or ammonium dihydrogen phosphate (ADP) powder extinguishing agent) consumption again, be mainly used in controlling all kinds of solids (category-A), liquid (category-B) and gas (C class) from the beginning of fire.
The performance quality of powder extinguishing agent is extremely important, and service property (quality) is qualified, the powder extinguishing agent of excellent performance can effectively reduce casualties and property loss.
According to the regulation of " fire service law ", identification is responsible for by Ministry of Public Security fire product conformity assessment center for the fire extinguishing agent product quality and performances, and wherein the powder extinguishing agent product is to carry out authentication and the testings such as type inspection in the mode of manufacturer's censorship.But the check identification of existing powder extinguishing agent product quality and performances can not substitute the supervision of daily production.Simultaneously, powder extinguishing agent use department for example fire brigade and fire supervision department lack the Site Detection means, can not accurately grasp the quality condition of existing powder extinguishing agent, in case have certain hidden danger for the fire that occurs.
The foundation that detects for the ammonium phosphate powder extinguishing agent product quality is " powder extinguishing agent part 2: ABC powder extinguishing agent " in the GB4066.2-2004 standard, if detect at the scene described ABC powder extinguishing agent, some basic equipment of standard-required and detection method can not satisfy maybe and can not adapt to, and for example carry out the 2.4m of extinguishing property test
2Fuel, the use " arbitration law " of food tray, standard fire test carried out determining ammonium biphosphate content and detected required large-scale instrument and equipments such as baking oven etc. and be not being met, and the determining ammonium biphosphate content detection method needs the sense cycle more than 8 hours etc. to adapt to.
The utility model of the patent No. 201120495021.7 " a kind of ultra-fine dry powder extinguishing agent pick-up unit " disclose a kind of for detection of powder extinguishing agent because of the reunite technical scheme of caking situation of moisture absorption, this scheme does not possess the function that detects other extinguishing property of ammonium phosphate powder extinguishing agent.
Summary of the invention:
The utility model is can fast detecting ammonium phosphate powder extinguishing agent content in order to satisfy at the scene of applying unit, the portable ammonium phosphate powder extinguishing agent device for fast detecting of the fire extinguishing agent critical nature of bulk density, anticaking capacity, repellency and particle size distribution characteristics.
The utility model is taked following technical scheme for achieving the above object: this device for fast detecting comprises the first carrying case and the second carrying case, described the first carrying case is provided with the spectrophotometer of wavelength coverage 330-800nm, wavelength accuracy ± 2nm, and described the second carrying case is provided with and moves that liquid measure is respectively 1mL and 5mL, precision are the liquid-transfering gun of 0.1mL; Volume is respectively 100mL, 500mL and 1000mL volumetric flask; The diameter that comprises sieve, lid and bottom dish is that 200mm, mesh size are the bushing screen of 0.04mm; Range of weighing 0～600g, precision are the electronic balance of 0.01g; The stopwatch of scale division value 0.1s; Range is that 250mL, scale division value are the tool plug graduated cylinder of 2.5mL; The beaker of 50mL and 100mL; Volume is the brown glass reagent bottle of 500mL; Iron stand; Glass funnel; Glass stirring rod; Sample spoon and ox horn spoon.
Described volume is that the volumetric flask of 100mL is provided with 5.
Described 50mL beaker is arranged in the beaker of 100mL.
Described volume is that the brown glass reagent bottle of 500mL is provided with 3.
The base of described iron stand, cradling piece and iron ring are decomposing state.
Described first, second carrying case is provided with casing and the case lid of aluminum alloy casing.
The casing of described first, second carrying case is provided with the respectively groove of corresponding content thing shape, and bottom surface and the sidewall at groove is provided with the sponge cushion pad at least, and sponge cushion pad surface is provided with lining cloth.
When carrying out the ammonium phosphate powder extinguishing agent assay, uses the utility model molybdenum-antimony anti-spectrophotometric method, concrete steps are: (1) preparation ammonium molybdate solution, 13.0g is dissolved in 90mL distilled water in the volumetric flask of 100mL with ox horn bale-out ammonium molybdate, and is diluted to 100mL; Preparation antimony tartrate potassium solution, 0.35g is dissolved in 100mL distilled water in the volumetric flask of 100mL with ox horn bale-out potassium antimony tartrate; Preparation mixes nitrite ion, constantly stirs a lower ammonium molybdate solution and slowly be added in the 300mL sulfuric acid in the brown glass reagent bottle of 500mL, adds subsequently antimony tartrate potassium solution 100mL again, mixes, and is for subsequent use; The preparation ascorbic acid solution, 10.0g is dissolved in 100mL distilled water in the volumetric flask of 100mL with ox horn bale-out ascorbic acid, adds EDETATE SODIUM 0.10g, glacial acetic acid 2mL in the brown glass reagent bottle of 500mL, and mixing is for subsequent use;
Preparation potassium dihydrogen phosphate standard inventory solution, taking by weighing 0.22g potassium dihydrogen phosphate (top grade is pure) is dissolved in the volumetric flask of 100mL in 3mL red fuming nitric acid (RFNA) and a small amount of water, and full dose changes in the volumetric flask of 1000mL, and adding distil water is settled to 1000mL, and the phosphorus concentration of this solution is 0.05mg/mL.The 100mL volumetric flask is cleaned for subsequent use.
(2) drawing standard curve
With liquid-transfering gun from the potassium dihydrogen phosphate standard reserving solution, draw respectively 0.0,0.2,0.3,0.4,0.5mL is in corresponding 100mL volumetric flask, add water and be settled to 100mL, then the concentration of phosphorus is respectively 0.0mg/L, 0.10mg/L, 0.15mg/L, 0.20mg/L, 0.25mg/L in the standard solution.、0.30mg/L、0.35m/gL、0.40mg/L、0.45mg/L。
Respectively add 2mL mixing nitrite ion and 1mL ascorbic acid solution in volumetric flask, colour developing 15min does reference take the concentration of phosphorus as the distilled water of 0.00mg/L, measures the absorbance of the standard solution of other different phosphate concentration in 720nm wavelength place with spectrophotometer; For guaranteeing the accuracy of experiment, each concentration point is parallel to be done three times, gets the mean value of each time as absorbance.
Take absorbance as ordinate, the phosphorus concentration of respective standard solution (mg/L) is horizontal ordinate, the drawing standard curve.
Reservation is done reference take the concentration of phosphorus as the volumetric flask of 0.00mg/L distilled water, other 100mL volumetric flask empties, with liquid-transfering gun from the potassium dihydrogen phosphate standard reserving solution, draw respectively 0.6,0.7,0.8,0.9mL is in corresponding 100mL volumetric flask, add water and be settled to 100mL, then the concentration of phosphorus is respectively 0.0mg/L, 0.30mg/L, 0.35mg/L, 0.40mg/L, 0.45mg/L in the standard solution.Respectively add 2mL mixing nitrite ion and 1mL ascorbic acid solution in volumetric flask, colour developing 15min does reference take the concentration of phosphorus as the distilled water of 0.00mg/L, measures the absorbance of the standard solution of other different phosphate concentration in 720nm wavelength place with spectrophotometer; For guaranteeing the accuracy of experiment, each concentration point is parallel to be done three times, gets the mean value of each time as absorbance.
Take absorbance as ordinate, the phosphorus concentration of respective standard solution (mg/L) is horizontal ordinate, the drawing standard curve.
(3) ammonium phosphate salt assay
With the dry powder sample behind the sample bale-out 1g mixing, put into the 50ml beaker, add 2ml acetone, constantly stir with glass bar, make acetone evaporate near doing.
Add a small amount of hot distilled water (60～70 ℃) dissolving, stir.
With filter paper doubling twice, the filter paper of folding is put into the funnel that is supported on the iron stand iron ring, with the moistening filter paper of water of wash bottle, glass bar is relative with the beaker mouth that fills filtered fluid; Three layer segments of filter paper are close in glass bar end and the funnel, but can not touch filter paper; The sample of dissolving is poured in the funnel and filtered, and filtered fluid is collected in the 500ml volumetric flask.Sediment in cyclic washing beaker and the funnel makes the filtrate volume of final collection about 300ml, and constant volume shakes up to 500ml afterwards.Therefrom pipette 0.1ml solution and transfer in three 100ml volumetric flasks, be settled to 100ml with distilled water, shake up, be solution to be measured.
Add respectively 2mL mixing nitrite ion and 1mL ascorbic acid solution in each liquid to be measured, colour developing 15min does reference with distilled water, measures the absorbance of three parallel sample in 720nm wavelength place by spectrophotometer; Get its mean value as the absorbance of this sample.According to the absorbance of measuring, check in the concentration x (mg/L) of phosphorus the solution to be measured from typical curve, then the content of ammonium dihydrogen phosphate (ADP) is (185.71 * x/m) % in the ammonium dihydrogen phosphate (ADP) powder extinguishing agent to be measured.
Repeat above-mentioned steps twice, carry out altogether three assay tests.Get that content value wherein approaches and the absolute value of content difference is not more than the mean value of twice test findings of 2.0% as measurement result.
The Fast Measurement that the utility model carries out bulk density makes apparatus plug graduated cylinder method, concrete steps are: (quality is m to take by weighing powder extinguishing agent sample about 100g, unit is g) place tool plug graduated cylinder, and with the speed of 2s one-period, turn upside down 10 cycles of graduated cylinder, then after tool plug graduated cylinder being left standstill 3min perpendicular to surface level, the volume V(unit of record sample is mL).The bulk density of sample=m/V(g/mL) then.Get the mean value of twice test findings that difference is no more than 0.04g/mL as measurement result.
The Fast Measurement that the utility model carries out anticaking capacity and repellency uses the water surface method of floating, and concrete steps are: get the 100ml beaker, pile water.Carefully dispense in the water surface with sample bale-out 1-2 spoon powder extinguishing agent sample to be measured, observe the state of powder extinguishing agent on the water surface.
If any the dry powder sedimentation, this sample is described, and silication is not good, and repellency is defective., then continue to stir gently the dry powder that the water surface is floated with the ox horn spoon without sedimentation such as dry powder, have the globule of dry powder parcel to occur, other dry powder still is in loose attitude, and then the repellency of sample is qualified.
Agglomerating such as dry powder, metachromatism is not obviously soaked on the surface, leave standstill 5-10min after, the group automatically scatter, illustrate that the anticaking capacity of dry powder is qualified.As an appearance become sticky, variable color, have obvious water to immerse phenomenon, leave standstill also and do not scatter, then the anticaking capacity of dry powder is defective.
The Fast Measurement that the utility model carries out particle size distribution characteristics adopts desktop vibration cover sieve method, and concrete steps are: the quality (m1) of (1) weighing cover screen bottom tray; (2) take by weighing powder extinguishing agent sample 50g (m2), be accurate to 0.01g, put into the 0.04mm bushing screen.The below is the chassis, covers top cover; (3) select a smooth desktop, bushing screen vertical direction vibrations 10 times, rock on the horizontal direction 3 times, carry out altogether 15min; (4) the chassis quality (m3) of powder extinguishing agent is equipped with in weighing; (5) granularity is calculated as follows less than the powder extinguishing agent mass percent x (%) of 0.04mm:
X＝[(m3－m1)/m2]×100
Get second trial result's mean value as measurement result, it is qualified that measurement result is not less than X-5%, and X is the published value that manufacturing enterprise provides content, and X-5% is the calculating standard of present evaluation particle size distribution characteristics of generally acknowledging.
The electronic balance of this device is all used in above weighing,
The beneficial effects of the utility model and advantage are: (1) is this Key Performance Indicator of Quick Measurement ammonium phosphate salt content at the scene, as long as ammonium phosphate salt content meets the requirements, just can guarantee the extinguishing property that powder extinguishing agent is basic.The utility model provides can realize the at the scene utensil of fast detecting ammonium phosphate salt content, can avoid using the instrument and equipments large-scale, that can't arbitrarily move such as baking oven, and the mensuration by this index, removed the fire-extinguishing test more harsh to environmental requirement from.(2) Key Performance Indicators such as the anti-caking performance of fast detecting ammonium phosphate powder extinguishing agent and size-grade distribution at the scene are the storage stability that guarantees powder extinguishing agent, avoid causing the phenomenon that can't spray because of caking.Regulation is to use penetrometer and sieve shaker to cooperate to finish this test in the existing product standard that the utility model provides, the utility model can replace the main equipment that sieve shaker etc. should not move and carry out the on-the-spot test of size-grade distribution, verify that through lot of experiments desktop vibration cover sieve method provided by the utility model can reach the purpose of effective separation different grain size component, thereby make this test possess the feasibility of field test.(3) measurement result accurately, reliably can be used as the scientific basis of ammonium phosphate salt quality judging.Although the utility model and using method thereof are different from the regulation of standard, but the combination property by key indexs such as ammonium phosphate powder extinguishing agent content, bulk density, anticaking capacity, repellency and particle size distribution characteristics is judged, the science of can carrying out the total quality of product is passed judgment on, thereby makes the Site Detection of ammonium phosphate powder extinguishing agent possess stronger science and operability.The utlity model has and be easy to carry and move.The integrated degree of detection case is high, and is lightweight, the outstanding advantages of compact in design.
Description of drawings
Accompanying drawing 1 is the utility model the first carrying case example structure schematic diagram.
Accompanying drawing 2 is the utility model second carrying case example structure schematic diagram.
Mark among the figure: 1 first carrying case, 2 spectrophotometers, 3 second carrying cases, 4 sponge cushion pads, 5 lining cloth, 6100mL volumetric flask, 7 sample spoons, 8 ox horn spoons, the 950mL beaker, 10100mL beaker, 11 bases, 12 tool plug graduated cylinders, 13 stopwatches, 14 iron rings, 15 glass stirring rods, the 161mL liquid-transfering gun, 17 cradling pieces, 185mL liquid-transfering gun, 19 glass funnels, 201000mL volumetric flask, 21 brown glass reagent bottles; 22 electronic balances, 23 500mL volumetric flasks, 24 bushing screens.
Embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing thereof.
Embodiment as shown in Figure 1, 2, portable ammonium phosphate powder extinguishing agent device for fast detecting comprises the first carrying case 1 and the second carrying case 3, each carrying case is provided with casing and the case lid of aluminum alloy casing.
The first carrying case 1 is provided with the spectrophotometer 2. of wavelength coverage 330-800nm, wavelength accuracy ± 2nm
The second carrying case 3 is provided with and moves liquid measure is that 1mL, precision are the 1mL liquid-transfering gun 16 of 0.1mL and to move liquid measure be that 5mL, precision are the 5mL liquid-transfering gun 18 of 0.1mL; 5 100mL volumetric flasks 6,1 500mL volumetric flask 23 and 1 1000mL volumetric flask 20; The diameter that comprises sieve, lid and bottom dish is that 200mm, mesh size are the bushing screen 24 of 0.04mm; Range of weighing 0～600g, precision are the electronic balance 22 of 0.01g; The stopwatch 13 of scale division value 0.1s; Range is that 250mL, scale division value are the tool plug graduated cylinder 12 of 2.5mL; 50mL beaker 9 and 100mL beaker 10,50mL beaker are arranged in the beaker of 100mL; 3 brown glass reagent bottles 21 that volume is 500mL; Iron stand, the chassis 11 of iron stand, cradling piece 17 and iron ring 14 are decomposing state; Glass funnel 19; Glass stirring rod 15; Sample spoon 7 and ox horn spoon 8.
Its liner plate of the casing of first, second carrying case is equipped with the respectively groove of corresponding content thing shape, at least bottom surface and the sidewall at groove is provided with the sponge cushion pad, the sponge cushion pad 4 of Fig. 1,2 embodiment comprises that covering arranges the liner plate surface of groove, and sponge cushion pad 4 surfaces are provided with lining cloth 5.
Claims (7)
1. portable ammonium phosphate powder extinguishing agent device for fast detecting, it is characterized in that: comprise the first carrying case and the second carrying case, described the first carrying case is provided with the spectrophotometer of wavelength coverage 330-800nm, wavelength accuracy ± 2nm, and described the second carrying case is provided with and moves that liquid measure is respectively 1mL and 5mL, precision are the liquid-transfering gun of 0.1mL; Volume is respectively 100mL, 500mL and 1000mL volumetric flask; The diameter that comprises sieve, lid and bottom dish is that 200mm, mesh size are the bushing screen of 0.04mm; Range of weighing 0～600g, precision are the electronic balance of 0.01g; The stopwatch of scale division value 0.1s; Range is that 250mL, scale division value are the tool plug graduated cylinder of 2.5mL; The beaker of 50mL and 100mL; Volume is the brown glass reagent bottle of 500mL; Iron stand; Glass funnel; Glass stirring rod; Sample spoon and ox horn spoon.
2. device for fast detecting according to claim 1, it is characterized in that: described volume is that the volumetric flask of 100mL is provided with 5.
3. device for fast detecting according to claim 1, it is characterized in that: described 50mL beaker is arranged in the beaker of 100mL.
4. device for fast detecting according to claim 1, it is characterized in that: described volume is that the brown glass reagent bottle of 500mL is provided with 3.
5. device for fast detecting according to claim 1, it is characterized in that: the base of described iron stand, cradling piece and iron ring are decomposing state.
6. device for fast detecting according to claim 1, it is characterized in that: described first, second carrying case is provided with casing and the case lid of aluminum alloy casing.
7. device for fast detecting according to claim 1, it is characterized in that: the casing of described first, second carrying case is provided with the respectively groove of corresponding content thing shape, at least bottom surface and the sidewall at groove is provided with the sponge cushion pad, and sponge cushion pad surface is provided with lining cloth.
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| CN 201220582056 CN202916188U (en) | 2012-11-07 | 2012-11-07 | Portable fast-detection device for ammonium phosphate salt dry powder extinguishing agent |
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| CN 201220582056 CN202916188U (en) | 2012-11-07 | 2012-11-07 | Portable fast-detection device for ammonium phosphate salt dry powder extinguishing agent |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104691904A (en) * | 2013-12-10 | 2015-06-10 | 国家电网公司 | Device for accommodating collecting equipment samples |
| CN104931500A (en) * | 2015-07-03 | 2015-09-23 | 公安部天津消防研究所 | Method for detecting ammonium dihydrogen phosphate content in dry powder extinguishing agent |
| CN111397731A (en) * | 2020-03-20 | 2020-07-10 | 安徽实朴检测技术服务有限公司 | Portable ultraviolet-visible spectrophotometer |
| CN114813893A (en) * | 2021-01-18 | 2022-07-29 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Detection box for detecting antioxidant content in transformer oil |
-
2012
- 2012-11-07 CN CN 201220582056 patent/CN202916188U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104691904A (en) * | 2013-12-10 | 2015-06-10 | 国家电网公司 | Device for accommodating collecting equipment samples |
| CN104931500A (en) * | 2015-07-03 | 2015-09-23 | 公安部天津消防研究所 | Method for detecting ammonium dihydrogen phosphate content in dry powder extinguishing agent |
| CN111397731A (en) * | 2020-03-20 | 2020-07-10 | 安徽实朴检测技术服务有限公司 | Portable ultraviolet-visible spectrophotometer |
| CN114813893A (en) * | 2021-01-18 | 2022-07-29 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Detection box for detecting antioxidant content in transformer oil |
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Address after: No. 110 Wei Jinnan Road, Nankai District, Tianjin Patentee after: TIANJIN FIRE Research Institute OF MEM Address before: No. 110 Wei Jinnan Road, Nankai District, Tianjin Patentee before: TIANJIN FIRE Research Institute |
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| CX01 | Expiry of patent term | ||
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Granted publication date: 20130501 |