CN206725448U - A kind of portable formaldehyde examination device of Domestic micro - Google Patents

Abstract

The utility model discloses a kind of portable formaldehyde examination device of Domestic micro, including absorption bottle, collector, absorbing liquid, timing knob and micro air pump, the absorption bottle is made up of upper cylinder and lower round platform, the lower round platform is fixed on below cylinder, the lower round platform is internally provided with porous sieve plate, lower round platform below the absorption bottle is connected by tracheae with the micro air pump gas outlet in the air pump case of collector inner upper, the collector front end face is provided with timing knob, the distribution box is internally provided with electric pressure converter, the electric pressure converter, connected between Miniature timer and micro air pump by electric wire, the absorbing liquid is arranged in absorption bottle.The utility model is quality-high and inexpensive, it is not necessary to which whether exceeded, simple to operate, it is not necessary to which that professional is operated with regard to that can complete all operations step, while whole sampling process can realize automation if consuming substantial amounts of manpower financial capacity's can measure indoor formaldehyde.

Description

A kind of portable formaldehyde examination device of Domestic micro

Technical field

Detection device technical field is the utility model is related to, specially a kind of portable formaldehyde examination device of Domestic micro.

Background technology

With the fast development of China's economy, the quality of IAQ is increasingly paid close attention to by everybody, especially As the improvement of people's living standards, a large amount of uses of interior decoration ornament materials cause organic volatile excessive concentration, seriously Endanger the health of people, wherein indoor formaldehyde pollution is more serious, formaldehyde be it is a kind of sheet material, finishing, chemical industry, The widely used volatile organic solvent in the fields such as automobile, weaving, and three causes of a kind of " carcinogenic, teratogenesis, mutagenesis " are poisonous Dusty gas, although country have strict regulation to the burst size of methanal in various ornament materials, due to product it is unqualified and Fit up it is improper and caused by contamination phenomenon still generally existing, furthermore, resident lacks the understanding of PARA FORMALDEHYDE PRILLS(91,95) relevant knowledge, ignores The importance of formaldehyde examination, cause indoor formaldehyde concentration exceeded for a long time, the health of people is had a strong impact on, therefore, it is possible to fast Fast effective detection goes out whether indoor formaldehyde concentration is exceeded to be particularly important.

At home, the method for being capable of fast and effective detection indoor formaldehyde concentration has two major classes：AAS, including second Acyl acetone method, phenol reagent process, AHMT methods, off-color acid method, Sulfurous Acid-fuchsin method.Chromatography, including gas chromatography, liquid phase color Spectrometry and the chromatography of ions, though the detection of this two classes method is accurate, high sensitivity, it can only be operated in the lab, it is impossible to Effectively it is popularized for average family.

In recent years, also there is the formaldehyde examination device that some are adapted to family to use in domestic market, wherein relatively conventional Device has an electrochemistry formaldehyde sensor and formaldehyde is tested oneself box, though electrochemistry formaldehyde sensor has stable performance, precision higher etc. Advantage, but sensor is expensive, and need professional to be operated；Formaldehyde box of testing oneself is cheap, simple to operate, but fills Putting the deficiency of itself causes that testing result error is larger and reappearance is poor, at present people to the reliability evaluation of this device not It is high.

It can be said that currently for average family formaldehyde examination it is cumbersome the problem of, go back that neither one is not only accurate but also ring both at home and abroad The detection means of guarantor, if therefore can design develop it is a easily, easily operated, the energy-conserving and environment-protective and degree of accuracy is high, be applicable Had great significance in the formaldehyde examination device of average family to solving the problems, such as that average family formaldehyde examination is cumbersome.

The content of the invention

The purpose of this utility model is to provide a kind of Domestic micro portable formaldehyde examination device, to solve above-mentioned background The problem of being proposed in technology, possessed beneficial effect are：This is new quality-high and inexpensive, it is not necessary to consumes substantial amounts of manpower financial capacity just It is whether exceeded that indoor formaldehyde can be determined, it is simple to operate, it is not necessary to and professional is operated with regard to that can complete all operations step, Whole sampling process can realize automation simultaneously.

To achieve the above object, the utility model provides following technical scheme：A kind of portable formaldehyde examination of Domestic micro Device, including absorption bottle, collector, absorbing liquid, timing knob and micro air pump, the absorption bottle is by upper cylinder and lower round platform group Into the lower round platform is fixed on below cylinder, and the lower round platform is internally provided with porous sieve plate, and the collector front end face is set Timing knob is equipped with, is disposed with air pump case, control cabinet and distribution box, the control cabinet inside the collector from top to bottom Inside is provided with Miniature timer, and the distribution box is internally provided with electric pressure converter, and the absorbing liquid is arranged in absorption bottle, External connection is provided with the right side of the collector.

Preferably, connected between the electric pressure converter, Miniature timer and micro air pump by electric wire.

Preferably, the timing knob is connected with the Miniature timer inside control cabinet.

Preferably, the lower round platform below the absorption bottle by tracheae with it is miniature in the air pump case of collector inner upper Air pump gas outlet is connected.

Preferably, the air inlet pipe on the micro air pump communicates with the air inlet on the right side of air pump case.

Compared with prior art, the beneficial effects of the utility model are：The sampling apparatus of New Energy automation is quantitatively adopted Collect indoor gas, convenient and efficient, and in quantitative collection room under test gas substantially increase subsequent quantitation measure indoor formaldehyde contain The degree of accuracy of amount and reliability, in sampling process, relatively conventional house ornamentation pure water can meets to prepare and absorbed in family The quality requirement of liquid solvent, can so gather materials on the spot, and accomplish the matching while using of absorbing liquid in the family, and then greatly reduce Cost of transportation and danger coefficient, the container of absorption plant bottom truncated cone-shaped is interior to be had with lower section full of fine and close porous sieve plate, reason Face：Uniform aeration, improving absorption rate so that the indoor gas flowed through from sampling apparatus can be good at by absorbing liquid,Increase the contact area of gas and solution, improve absorption efficiency, detection reagent is solidified, makes test paper for formaldehyde detection, a side Face can extend the useful life of reagent, reduce the usage amount of each reagent, during on the other hand can reducing formaldehyde examination The yield of solution, the secondary pollution to environment, energy-conserving and environment-protective being avoided, detection reagent is not only present in absorbing liquid, and Also it is used for doing the key agents on test paper, has broken the conventional method of detection reagent single use, both are used cooperatively, not only Greatly reduce the usage amount of reagent, energy-conserving and environment-protective, what is more important substantially increases sensitivity and the standard of test paper detection formaldehyde Exactness, and then indoor trace formaldehyde also can be detected quick and precisely, key agents are all matching while using, are carried significantly The high degree of accuracy of detection, each reagent dosage very little, and also test paper for formaldehyde detection can be used for multiple times, green, this first Reagent and its dosage will not produce danger in family's detection process all in safe range to human body used by aldehyde detection means Evil, can be with safe to use, whole device small volume and less weight, and profile is cylinder, is easy to place when not in use, it might even be possible to as Small ornament.

Brief description of the drawings

Fig. 1 is the structural representation outside the utility model；

Fig. 2 is the structural representation inside the utility model；

Fig. 3 is the structural representation of the utility model absorption bottle.

Drawing explanation：1st, absorption bottle, 2, tracheae, 3, collector, 4, air inlet, 5, external connection, 6, absorbing liquid, 7, more hole sizers Plate, 8, timing knob, 9, air pump case, 10, micro air pump, 11, Miniature timer, 12, distribution box, 13, upper cylinder, 14, control Case, 15, lower round platform, 16, electric pressure converter.

Embodiment

Refering to Fig. 1-3, a kind of embodiment provided by the utility model：A kind of portable formaldehyde examination device of Domestic micro, Including absorption bottle 1, collector 3, absorbing liquid 6, timing knob 8 and micro air pump 10, absorption bottle is by upper cylinder 13 and lower round platform 15 Composition, lower round platform are fixed on below cylinder, and lower round platform is internally provided with porous sieve plate 7, and collector front end face is provided with timing Knob, air pump case 9, control cabinet 14 and distribution box 12 are disposed with from top to bottom inside collector, is provided with inside control cabinet Miniature timer 11, distribution box are internally provided with electric pressure converter 16, and absorbing liquid is arranged in absorption bottle, are set on the right side of collector There is external connection 5, connected between electric pressure converter, Miniature timer and micro air pump by electric wire, in timing knob and control cabinet The Miniature timer connection in portion, lower round platform below absorption bottle by tracheae 2 with it is micro- in the air pump case of collector inner upper Type air pump gas outlet is connected, and the air inlet pipe on micro air pump communicates with the air inlet 4 on the right side of air pump case, and test paper for formaldehyde detection is main Be by homogeneous quantitative filter paper in appropriate concentration phenol reagent solution immersion a period of time after be made, formaldehyde chromogenic reagent be by Certain density acid ferric ion solution is formed, and the volume of absorbing liquid is 30ml in absorption bottle, and the concentration of wherein phenol reagent is The g/30ml of 0.015g/30ml ~ 0.02, test paper for formaldehyde detection is that the phenol reagent solution that concentration is 12.5mg/100ml is formulated, Formaldehyde chromogenic reagent is formed by ammonium ferric sulfate and hydrochloric acid configuration, and wherein ammonium ferric sulfate concentration is 0.05g/100ml ~ 0.067g/ 100ml, the concentration of hydrochloric acid is 0.02mol/L ~ 0.03mol/L.

Operation principle：Before use, carrying out the configuration of test paper for formaldehyde detection, the phenol reagent for weighing 12.5mg is dissolved in 100ml's In volumetric flask, with deionized water constant volume, the phenol reagent solution that solubility is 12.5mg/100mL is obtained, the phenol reagent prepared is molten Liquid soaks quantitative filter paper, soaks 10min, then completely cuts off air, and natural air drying obtains test paper for formaldehyde detection, and test paper should be sealed and is placed in Dry unglazed place to preserve, further prepare formaldehyde chromogenic reagent, weigh the ammonium ferric sulfate that quality is 0.05-0.067g, use concentration Dissolve for 0.02mol/L-0.03mol/L hydrochloric acid solution, be transferred to afterwards in 100mL volumetric flask, placement is stand-by, is sampling When space to be measured at least sealed into 30min, sampling apparatus is placed in space to be measured afterwards, when setting sampling by timing knob Between（After 90min), micro air pump is opened, at this moment indoor gas will enter from the air inlet on micro air pump automatically, gas warp Cross after tracheae and uniformly flowed into by the porous sieve plate on lower round platform in the absorption bottle equipped with absorbing liquid, when the arrival sampling time Afterwards, Miniature timer can make micro air pump be automatically stopped work, and sampling terminates, and sample collection is complete, and the sample after collection is placed in Dry at lucifuge, a piece of test paper for formaldehyde detection is taken out from hermetic bag, first take sample to be dripped every time to graduation mark with capillary glass tube The sample of 1/4 amount, time drop, which is hardly shown in, 4 times repeatedly in same position, more than each time for adding interval is defined so that sample Product are constantly enriched with test paper, improve testing sample concentration on test paper, and then improve sensitivity and the testing result of test paper indirectly The degree of accuracy, take formaldehyde chromogenic reagent on test paper same position with another capillary afterwards, be added dropwise 2 ~ 3 times repeatedly, wait 3 ~ After 5min, observation colour developing color, with color board colorimetric assay.

General principle of the present utility model, principal character and advantage has been shown and described above, it is new not departing from this practicality On the premise of type spirit and scope, the utility model also has various changes and modifications, and these changes and improvements both fall within requirement and protected The scope of the utility model of shield.

Claims (5)

1. a kind of portable formaldehyde examination device of Domestic micro, including absorption bottle, collector, absorbing liquid, timing knob and miniature Air pump, it is characterised in that：The absorption bottle is made up of upper cylinder and lower round platform, and the lower round platform is fixed on below cylinder, institute State lower round platform and be internally provided with porous sieve plate, the collector front end face is provided with timing knob, from upper inside the collector Air pump case, control cabinet and distribution box are disposed with, Miniature timer, the distribution box are installed inside the control cabinet Electric pressure converter is internally provided with, the absorbing liquid is arranged in absorption bottle, and external connection is provided with the right side of the collector.

A kind of 2. portable formaldehyde examination device of Domestic micro according to claim 1, it is characterised in that：The voltage turns Connected between parallel operation, Miniature timer and micro air pump by electric wire.

A kind of 3. portable formaldehyde examination device of Domestic micro according to claim 1, it is characterised in that：The timing rotation Button is connected with the Miniature timer inside control cabinet.

A kind of 4. portable formaldehyde examination device of Domestic micro according to claim 1, it is characterised in that：The absorption bottle The lower round platform of lower section is connected by tracheae with the micro air pump gas outlet in the air pump case of collector inner upper.

A kind of 5. portable formaldehyde examination device of Domestic micro according to claim 1, it is characterised in that：The miniature gas Air inlet pipe on pump communicates with the air inlet on the right side of air pump case.