CN104931490B - In a kind of simple detection operation surrounding air whether leaded detection means - Google Patents
In a kind of simple detection operation surrounding air whether leaded detection means Download PDFInfo
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- CN104931490B CN104931490B CN201510285759.3A CN201510285759A CN104931490B CN 104931490 B CN104931490 B CN 104931490B CN 201510285759 A CN201510285759 A CN 201510285759A CN 104931490 B CN104931490 B CN 104931490B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N2021/775—Indicator and selective membrane
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Abstract
The present invention propose in a kind of simple detection operation surrounding air whether leaded method, the particulate for absorbing certain volume air in operation field sampled；The absorber that particulate is absorbed in sampling apparatus is rinsed using sulfuric acid and sodium chloride mixed solution, the mixed solution of entrained particles is flowed into collecting bottle, lead ion is dissolved in mixed solution；By contaminant filter；Quantitative lead ion solution is instilled in methylthymol blue chelating resin solid detection agent；If color change bar occurs in methylthymol blue chelating resin solid detection agent, judge leaded in the air of operation field；If methylthymol blue chelating resin solid detection agent does not occur color change bar, judge not leaded in the air of operation field.Therefore, the present invention can smooth quick realization sampling and detection whole flow process, reach and efficiently judge the whether leaded testing goal of operation field air.The present invention also proposes a kind of detection means based on the method, can efficiently realize the flow of the method, and operation is flexibly smooth.
Description
Technical field
The present invention relates to the detection means field of Lead in Air, and in particular to is in a kind of simple detection operation surrounding air
No leaded detection means.
Background technology
It is detrimental to health numerous now in the chief-criminal with children's intelligence, lead is no small one of harm.According to authority's tune
Look into report to reveal, the average lead tolerance in modern's body has substantially exceeded 500 times of ancients before 1000！And the mankind lack master
Dynamic, effective safeguard procedures.According to investigations, average lead tolerance is generally higher than young man in many children's bodies now；Traffic-police is again
The people of more other industries is done harm to deeper by lead poisoning.Lead enters after human body, and in addition to being drained except part by excrement, sweat, remaining is several small
When after dissolve in blood, hinder the synthesis of blood, cause human body anaemia, headache, dizziness, weak, sleepy, constipation and limbs occur
Ache；There is metallic taste in some mouths, the symptom such as artery sclerosis, digestive tract ulcer and fundus hemorrhage is also relevant with lead contamination.It is small
Then there is hypoevolutism, poor appetite, inconvenient walking and constipation, insomnia in child's lead poisoning；If pupil, also with moving more, listen
Feel the phenomenons such as obstacle, absent minded, feeblemindedness.Because lead enters after human body by blood intrusion cerebral nerve group
Knit, make nutriment and oxygen supply not enough, cause caused by brain tissue impairment, severe patient may cause permanent disbility.Particularly
Children are in growth and development stage, and to lead ratio, adult is more sensitive, there is very strong affinity to nervous system into internal lead,
Therefore it is higher than adult several times to the uptake of lead, it is aggrieved to be particularly acute.Lead enters in pregnant woman's body can then be influenceed by placental barrier
Development of fetus, causes deformity etc..Effectively prevent lead poisoning, be current scientist explore, one of the problem captured.As
Individual, it is highly important to strengthen taking precautions against, carrying out self-protection, but is hard to guard against in many cases, such as in workshop
Deng operation field, especially lead accumulator workshop, lead can with the floating of the various forms such as compound in atmosphere, it is long-term under
Come, great threat can be caused to the healthy of workman, but but detected on existing market without practicable operation field
Method, this problems demand is solved.
In consideration of it, inventor furthers investigate to above mentioned problem, there is this case generation then.
The content of the invention
It is an object of the invention to provide it is a kind of can smooth quick realization sampling and detection whole flow process, reach and efficiently sentence
The whether leaded testing goal of disconnected operation field air, flexible smooth, the novel and reasonable structure of operation, practical simple detection
In operating environment air whether leaded detection means.
In order to achieve the above object, the present invention is using such technical scheme：
In a kind of simple detection operation surrounding air whether leaded detection means, including sampling apparatus, be communicated in sampling
Collecting bottle below device and the detection means below collecting bottle；
The sampling apparatus is including sampling apparatus main body, the air pump for the outlet side for being connected to sampling apparatus main body and located at gas
Gas flowmeter in the air inlet pipe of pump；The sampling apparatus main body includes body, absorbent cotton silk screen and dress successively from outside to inside
Sulfhydryl Cotton absorber in absorbent cotton silk screen, the outlet side block of the body has copper mesh layers；The two ends of the body it
Between be equipped with lid provided with the feed tube that upwardly extends, the feed tube；The inlet end of the body is equipped with the first end cap, goes out
Gas end is equipped with the second end cap；The side face of the inlet end of the body is formed with the first external screw thread, and the first end lid is formed with
The first internal thread matched with first external screw thread；The side face of the outlet side of the body is formed with the second external screw thread, institute
State the second end cap and be formed with the second internal thread matched with second external screw thread；
The collecting bottle includes collecting bottle main body, the communicating pipe being communicated between collecting bottle main body and the body, connected
In collecting bottle lower body part and liquid outlet it is corresponding with the detection means go out liquid tap and be communicated in collecting bottle body top simultaneously
The blast pipe extended upward, the upper port gear of the communicating pipe is provided with screen pack, and the blast pipe is equipped with lid, it is described go out liquid
Tap is equipped with switch；
The detection means includes glass tube, the methylthymol blue chelating resin solid being installed in glass tube detection
Agent and two are plugged in the absorbent cotton that methylthymol blue chelating resin solid detection agent two ends are positioned, the glass respectively
The upper port of glass pipe with it is described go out liquid tap liquid outlet it is corresponding.
The inlet end side face of above-mentioned tubular body is provided with the first sealing between above-mentioned first external screw thread and the second external screw thread
Ring, the medial surface of first end cap is formed with the first thin diameter section and the first wide section close to lid mouth close to base, described
The the first sealing station terrace mutually supported with first sealing ring, described are formed between first thin diameter section and the first wide section
One sealing station terrace is the circular cone inclined-plane being tapered by lid mouth to base direction；First internal thread is formed at described first
Thin diameter section；
The outlet side side face of the body is provided with the second sealing between second external screw thread and the first external screw thread
Ring, the medial surface of second end cap is formed with the second thin diameter section and the second wide section close to lid mouth close to base, described
The the second sealing station terrace mutually supported with second sealing ring, described are formed between second thin diameter section and the second wide section
Two sealing station terraces are the circular cone inclined-plane being tapered by lid mouth to base direction；Second internal thread is formed at described second
Thin diameter section；
The air inlet of the air inlet pipe of the air pump is formed with the 3rd internal thread matched with second external screw thread, described
The medial surface of air inlet pipe is formed with the 3rd thin diameter section away from the second sealing ring and the 3rd wide section close to the second sealing ring,
The 3rd sealing station terrace mutually supported with second sealing ring is formed between 3rd thin diameter section and the 3rd wide section, institute
It is by the circular cone inclined-plane of air inlet taper inward to state the 3rd sealing station terrace；3rd internal thread is formed at the described 3rd
Thin diameter section.
The cross section of above-mentioned tapered slope is indent camber line.
After adopting the above technical scheme, the present invention simple detection operation surrounding air in whether leaded detection means,
When sampling apparatus main body does not work, the first end cap and the second end cap can be screwed onto to the two ends of body, realized the first end cap
The sealing of body is covered with the second end cap, effective sealing to Sulfhydryl Cotton absorber is reached, it is ensured that sample absorbs workspace and existed
Validity before work, and absorb the index stability after sample.When sampling apparatus body of work, by the first end cap and
Two end caps are pulled down, and make the both ends open of body, and the air inlet pipe of air pump is connected to the outlet side of body, realize by air inlet pipe with
Body is tightly connected, and then can be opened air pump and bypassed air through body and pass through Sulfhydryl Cotton absorber, and Sulfhydryl Cotton absorber will
Leaded particulate in air-flow, which absorbs, is sampled, and gas flowmeter calculates the volume of air-flow, is easy to subsequent statistical.When sampling knot
Shu Hou, the sodium chloride mixed solution that the sulfuric acid and concentration for being 50-80g/L with concentration are 120-150g/L pours into body by feed tube
It is interior, Sulfhydryl Cotton absorber is rinsed through absorbent cotton silk screen, the particulate that Sulfhydryl Cotton absorber is adsorbed is rinsed out, and is dissolved
In mixed solution, then after filter screen filtration, flowed into along communicating pipe in collecting bottle main body, solution can be easy to by opening blast pipe
Flow into collecting bottle main body in, reach it is a certain amount of after, open switch, make mixed solution by go out liquid tap gradually flow out, by glass tube
Upper port instill the methylthymol blue chelating resin solid detection agent of detection means, if methylthymol blue chelating resin is solid
There is color change bar (blueness) in body detection agent, then judges leaded in the air of operation field；If methylthymol blue chelating resin is consolidated
Body detection agent 302 does not occur color change bar, then judges not leaded in the air of operation field.In actual mechanical process, in operation
Scene, by sampling apparatus, is sampled by the air of certain volume using the particulate in sampling apparatus absorption air；Using dense
Suction of the sodium chloride mixed solution that the sulfuric acid and concentration that degree is 50-80g/L are 120-150g/L to absorption particulate in sampling apparatus
Acceptor is rinsed, and the mixed solution of entrained particles is flowed into collecting bottle, lead ion is dissolved in mixed solution；By impurity
Filtering, prepares pure lead ion solution；Quantitatively above-mentioned lead ion solution is from top to bottom instilled in the methyl hundred of sufficient length
In phenol indigo plant chelating resin solid detection agent；If color change bar occurs in methylthymol blue chelating resin solid detection agent, judge to make
It is leaded in the air at industry scene；If methylthymol blue chelating resin solid detection agent does not occur color change bar, judge that operation shows
It is not leaded in the air of field.Compared with prior art, in simple detection operation surrounding air of the invention whether leaded detection
Device, its can smooth quick realization sampling and detection whole flow process, reach and efficiently judge whether operation field air leaded
Testing goal, flexible smooth, the novel and reasonable structure of operation is practical.
Brief description of the drawings
Fig. 1 is easy structure schematic diagram of the invention；
Fig. 2 is the cross section structure diagram of sampling apparatus first state；
Fig. 3 is the cross section structure diagram of the state of sampling apparatus second.
In figure：
1- sampling apparatus main body 11- bodys
111- copper mesh layers the first end caps of 112-
1121- the first internal thread the first thin diameter sections of 1122-
1123- the first wide section 1124- the first sealing station terraces
113- the second end cap the second internal threads of 1131-
1132- the second thin diameter section the second wide sections of 1133-
1134- the second sealing station terrace the first external screw threads of 114-
115- the second external screw thread the first sealing rings of 116-
117- the second sealing ring 118- feed tubes
12- absorbent cotton silk screens
13- Sulfhydryl Cotton absorbers
2- air pump 21- air inlet pipe
The thin diameter sections of the 3rd internal thread 212- of 211- the 3rd
The sealing station terraces of the 3rd wide section 214- of 213- the 3rd
3- gas flowmeters
20- collecting bottle 201- collecting bottle main bodys
202- communicating pipe 2021- screen packs
203- goes out liquid tap 2031- switches
204- blast pipes
30- detection means 301- glass tubes
302- methylthymol blue chelating resin solid detection agents
303- absorbent cotton.
Embodiment
In order to which technical scheme is explained further, it is described in detail below by specific embodiment.
The present invention a kind of simple detection operation surrounding air in whether leaded method.
Embodiment one, comprises the following steps：
(1) in operation field by 1 cubic metre of air by sampling apparatus, utilize the particulate in sampling apparatus absorption air
Sampled；
(2) the sodium chloride mixed solution that concentration is 120g/L for 50g/L sulfuric acid and concentration is used to being inhaled in sampling apparatus
The absorber for receiving particulate is rinsed, and the mixed solution of entrained particles is flowed into collecting bottle, lead ion is dissolved in mixing molten
In liquid；
(3) in order to avoid the influence of impurity, by contaminant filter, pure lead ion solution is prepared；
(4) in order to ensure the validity and intuitive of reaction, and it is easy to measurement, by the above-mentioned lead ion solution of 2ml by up to
In the methylthymol blue chelating resin solid detection agent of lower instillation 100mm length；
(5) if color change bar (blueness) occurs in methylthymol blue chelating resin solid detection agent, operation field is judged
It is leaded in air；If methylthymol blue chelating resin solid detection agent does not occur color change bar, the air of operation field is judged
In it is not leaded.
Embodiment two, comprises the following steps：
(1) in operation field by 1.5 cubic metres of air by sampling apparatus, using micro- in sampling apparatus absorption air
Grain is sampled；
(2) the sodium chloride mixed solution that concentration is 135g/L for 65g/L sulfuric acid and concentration is used to being inhaled in sampling apparatus
The absorber for receiving particulate is rinsed, and the mixed solution of entrained particles is flowed into collecting bottle, lead ion is dissolved in mixing molten
In liquid；
(3) in order to avoid the influence of impurity, by contaminant filter, pure lead ion solution is prepared；
(4) in order to ensure the validity and intuitive of reaction, and it is easy to measurement, by the above-mentioned lead ion solution of 2ml by up to
In the methylthymol blue chelating resin solid detection agent of lower instillation 105mm length；
(5) if color change bar (blueness) occurs in methylthymol blue chelating resin solid detection agent, operation field is judged
It is leaded in air；If methylthymol blue chelating resin solid detection agent does not occur color change bar, the air of operation field is judged
In it is not leaded.
Embodiment three, comprises the following steps：
(1) in operation field by 2 cubic metres of air by sampling apparatus, utilize the particulate in sampling apparatus absorption air
Sampled；
(2) the sodium chloride mixed solution that concentration is 150g/L for 80g/L sulfuric acid and concentration is used to being inhaled in sampling apparatus
The absorber for receiving particulate is rinsed, and the mixed solution of entrained particles is flowed into collecting bottle, lead ion is dissolved in mixing molten
In liquid；
(3) in order to avoid the influence of impurity, by contaminant filter, pure lead ion solution is prepared；
(4) in order to ensure the validity and intuitive of reaction, and it is easy to measurement, by the above-mentioned lead ion solution of 2ml by up to
In the methylthymol blue chelating resin solid detection agent of lower instillation 110mm length；
(5) if color change bar (blueness) occurs in methylthymol blue chelating resin solid detection agent, operation field is judged
It is leaded in air；If methylthymol blue chelating resin solid detection agent does not occur color change bar, the air of operation field is judged
In it is not leaded.
Above-mentioned absorber is prepared,
Example IV：
S1：According to volume ratio 9 in beaker:9：1 sequentially adds thioglycolic acid, 2- methyl-tetrahydros furans and hydrosulphuric acid,
Add water to be well mixed and mixed liquor is made；
S2：Above-mentioned mixed liquor is cooled to 20 DEG C；
S3：The above-mentioned mixed liquor of cooling is poured into the brown, wide-mouth bottle equipped with absorbent cotton, absorbent cotton soaked, and covers
Sealing；
S4：Above-mentioned brown, wide-mouth bottle is placed in 35 DEG C of thermostatted water to the water-bath carried out 100 hours；
S5：Above-mentioned brown, wide-mouth bottle is taken out, and absorbent cotton is laid in the bottle,suction of two layers of Medium speed filter paper；
S6：Above-mentioned absorbent cotton is rinsed with deionized water, until flushing liquor is neutrality；
S7：Above-mentioned absorbent cotton is placed at 40 DEG C and dried, makes absorbent cotton that there is adsorptivity and chemistry to leaded particulate etc.
Stability, that is, be made Sulfhydryl Cotton.
Embodiment five：
S1：According to volume ratio 12 in beaker:10.5：1.5 sequentially add thioglycolic acid, 2- methyl-tetrahydros furans and
Hydrosulphuric acid, adds water and well mixed mixed liquor is made；
S2：Above-mentioned mixed liquor is cooled to 22.5 DEG C；
S3：The above-mentioned mixed liquor of cooling is poured into the brown, wide-mouth bottle equipped with absorbent cotton, absorbent cotton soaked, and covers
Sealing；
S4：Above-mentioned brown, wide-mouth bottle is placed in 37.5 DEG C of thermostatted water to the water-bath carried out 135 hours；
S5：Above-mentioned brown, wide-mouth bottle is taken out, and absorbent cotton is laid in the bottle,suction of two layers of Medium speed filter paper；
S6：Above-mentioned absorbent cotton is rinsed with deionized water, until flushing liquor is neutrality；
S7：Above-mentioned absorbent cotton is placed at 42.5 DEG C and dried.
Embodiment six：
S1：According to volume ratio 15 in beaker:12：2 sequentially add thioglycolic acid, 2- methyl-tetrahydros furans and hydrogen sulphur
Acid, adds water and well mixed mixed liquor is made；
S2：Above-mentioned mixed liquor is cooled to 25 DEG C；
S3：The above-mentioned mixed liquor of cooling is poured into the brown, wide-mouth bottle equipped with absorbent cotton, absorbent cotton soaked, and covers
Sealing；
S4：Above-mentioned brown, wide-mouth bottle is placed in 40 DEG C of thermostatted water to the water-bath carried out 170 hours；
S5：Above-mentioned brown, wide-mouth bottle is taken out, and absorbent cotton is laid in the bottle,suction of two layers of Medium speed filter paper；
S6：Above-mentioned absorbent cotton is rinsed with deionized water, until flushing liquor is neutrality；
S7：Above-mentioned absorbent cotton is placed at 45 DEG C and dried.
Above-mentioned methylthymol blue chelating resin solid detection agent is by strong basic anion-exchange resin and methylthymol blue
Compare 1 according to weight:1 synthesis；Or compare 1 according to weight:1.5 synthesis；Or compare 1 according to weight:It is 2-in-1 into, can so make highly basic cloudy from
Sub-exchange resin and methylthymol blue highly effective chelating.
Above-mentioned methylthymol blue chelating resin solid detection agent is made in accordance with the following steps：
Embodiment seven：
A1：Above-mentioned strong basic anion-exchange resin is mixed with double distilled water, with 75 revolutions per seconds of speed in normal temperature water-bath
Stirring 6 minutes；
A2：Above-mentioned methylthymol blue is added, and is stirred 25 minutes with 75 revolutions per seconds of speed in normal temperature water-bath；
A3：Filtered, the solid portion of chelating is filtered out；
A4：Rinsed 9 seconds with double distilled water.
Embodiment eight：
A1：Above-mentioned strong basic anion-exchange resin is mixed with double distilled water, with 77 revolutions per seconds of speed in normal temperature water-bath
Stirring 5.5 minutes；
A2：Above-mentioned methylthymol blue is added, and is stirred 22.5 minutes with 77 revolutions per seconds of speed in normal temperature water-bath；
A3：Filtered, the solid portion of chelating is filtered out；
A4：Rinsed 12 seconds with double distilled water.
Embodiment nine：
A1：Above-mentioned strong basic anion-exchange resin is mixed with double distilled water, with 80 revolutions per seconds of speed in normal temperature water-bath
Stirring 5 minutes；
A2：Above-mentioned methylthymol blue is added, and is stirred 20 minutes with 80 revolutions per seconds of speed in normal temperature water-bath；
A3：Filtered, the solid portion of chelating is filtered out；
A4：Rinsed 15 seconds with double distilled water.
In above-mentioned steps (5), take the length of above-mentioned methylthymol blue chelating resin solid detection agent for 100mm,
105mm or 110mm, weight is 150-165mg, is put into glass tube, and absorbent cotton closure in top and bottom positions and limits first
The length of base thymol blue chelating resin solid detection agent；Take above-mentioned lead ion solution 2.5ml, 2.7ml or 3ml.
A kind of detection means of the present invention, as Figure 1-3, including sampling apparatus 1, is communicated in the lower section of sampling apparatus 1
Collecting bottle 20 and the detection means 30 in the lower section of collecting bottle 20；
Sampling apparatus 1 is including sampling apparatus main body 1, the air pump 2 for the outlet side for being connected to sampling apparatus main body 1 and located at gas
Gas flowmeter 3 in the air inlet pipe 21 of pump 2；Sampling apparatus main body 1 includes body 11, absorbent cotton silk screen 12 successively from outside to inside
With the Sulfhydryl Cotton absorber 13 being installed in absorbent cotton silk screen 12, the outlet side block of body 11 has copper mesh layers 111, copper mesh layers
111 can position to absorbent cotton silk screen 12 and internal Sulfhydryl Cotton absorber 13, particularly avoid under the blowing force of air-flow to gas
Pump 2 is moved；Provided with the feed tube 118 upwardly extended between the two ends of body 11, feed tube 118 is equipped with lid, this lid
Son can be opened when necessary；The inlet end of body 11 is equipped with the first end cap 112, and outlet side is equipped with the second end cap 113；Body
The side face of 11 inlet end is formed with the first external screw thread 114, and the first end cap 112 is formed with what is matched with the first external screw thread 114
First internal thread 1121, the first end cap 112 can rely on the cooperation of the first external screw thread 114 and the first internal thread 1121, realize and pipe
Body 11 inlet end is spirally connected；The side face of the outlet side of body 11 is formed with the second external screw thread 115, the second end cap 113 be formed with
The second internal thread 1131 that second external screw thread 115 matches, the second end cap 113 can be by spiral shell in the second external screw thread 115 and second
The cooperation of line 1131, realization is spirally connected with the outlet side of body 11；
Collecting bottle 20 include collecting bottle main body 201, be communicated between collecting bottle main body 201 and body 11 communicating pipe 202,
It is communicated in the bottom of collecting bottle main body 201 and liquid outlet is corresponding with detection means 30 goes out liquid tap 203 and to be communicated in collecting bottle master
The top of body 201 and the blast pipe 204 extended upward, the upper port gear of communicating pipe 202 are provided with screen pack 2021, and screen pack 2021 can
The liquid flowed down is filtered, blast pipe 204 is equipped with lid, this lid can be opened when necessary, go out liquid tap 203 and arrange
There is switch 2031, solution in collecting bottle 20 can be made from going out to flow out to detection means 30 in liquid tap 203 by operating this to switch 2031
On, or the closing of liquid tap 203 will be gone out；
Detection means 30 includes glass tube 301, the methylthymol blue chelating resin solid being installed in glass tube 301 inspection
Survey agent 302 and two are plugged in the absorbent cotton that the two ends of methylthymol blue chelating resin solid detection agent 302 are positioned respectively
303, the upper port of glass tube 301 is corresponding with the liquid outlet for going out liquid tap 203.The present invention in actual use, works as sampling
When apparatus main body 1 does not work, the first end cap 112 and the second end cap 113 can be screwed onto to the two ends of body 11, realized first end
Sealing of the end cap 113 of lid 112 and second to body 11 is covered, and reaches effective sealing to Sulfhydryl Cotton absorber 13, it is ensured that sample
Validity of the workspace before work is absorbed, and absorbs the index stability after sample.When sampling apparatus main body 1 works,
First end cap 112 and the second end cap 113 are pulled down, make the both ends open of body 11, and the air inlet pipe 21 of air pump 2 is connected to pipe
The outlet side of body 11, realizes being tightly connected air inlet pipe 21 and body 11, and then can open air pump 2 and bypass air through body 11
And by Sulfhydryl Cotton absorber 13, Sulfhydryl Cotton absorber 13, which absorbs the leaded particulate in air-flow, is sampled, gas flowmeter 3
The volume of air-flow is calculated, is easy to subsequent statistical.After sampling terminates, the sulfuric acid and concentration for being 50-80g/L with concentration are 120-
150g/L sodium chloride mixed solution is poured into body 11 by feed tube 118, through absorbent cotton silk screen 12 to Sulfhydryl Cotton absorber
13 are rinsed, and the particulate that Sulfhydryl Cotton absorber 13 is adsorbed is rinsed out, and is dissolved in mixed solution, then by screen pack
After 2021 filterings, flowed into along communicating pipe 202 in collecting bottle main body 201, opening blast pipe 204 can be easy to solution to flow into collecting bottle master
In body 201, reach it is a certain amount of after, open switch 2031, mixed solution is gradually flowed out by going out liquid tap 203, by glass tube 301
Upper port instill detection means 30 methylthymol blue chelating resin solid detection agent 302, if methylthymol blue chelate
There is color change bar (blueness) in resin solid detection agent 302, then judges leaded in the air of operation field；If methylthymol blue chela
Resin solid detection agent 302 does not occur color change bar, then judges not leaded in the air of operation field.
In order to implement the Hermetical connecting structure of body 11 and miscellaneous part, it is preferable that the inlet end side face of body 11
Provided with the first sealing ring 116 between the first external screw thread 114 and the second external screw thread 115, the medial surface shape of the first end cap 112
Into the first thin diameter section 1122 for having close base and close to the first wide section 1123 of lid mouth, the first thin diameter section 1122 and first
The the first sealing station terrace 1124 mutually supported with the first sealing ring 116, the first sealing station terrace are formed between wide section 1123
The 1124 circular cone inclined-plane to be tapered by lid mouth to base direction；First internal thread 1121 is formed at the first thin diameter section 1122；
The outlet side side face of body 11 is provided with the second sealing between the second external screw thread 115 and the first external screw thread 114
Ring 117, the medial surface of the second end cap 113 is formed with the second thin diameter section 1132 and the second particle size close to lid mouth close to base
Section 1133, be formed between the second thin diameter section 1132 and the second wide section 1133 with the second sealing ring 117 mutually support it is second close
Step surface 1134 is sealed, the second sealing station terrace 1134 is the circular cone inclined-plane being tapered by lid mouth to base direction；Spiral shell in second
Line 1131 is formed at the second thin diameter section 1132；
The air inlet of the air inlet pipe 21 of air pump 2 is formed with the 3rd internal thread 211 matched with the second external screw thread 115, enters
Tracheae 21 can rely on the cooperation of the second external screw thread 115 and the 3rd internal thread 211, and realization is spirally connected with the outlet side of body 11；Air inlet
The medial surface of pipe 21 be formed with away from the second sealing ring 117 the 3rd thin diameter section 212 and close to the second sealing ring 117 the 3rd
Wide section 213, be formed between the 3rd thin diameter section 212 and the 3rd wide section 213 with the second sealing ring 117 mutually support it is the 3rd close
Step surface 214 is sealed, the 3rd sealing station terrace 214 is by the circular cone inclined-plane of air inlet taper inward；The shape of 3rd internal thread 211
The thin diameter sections 212 of Cheng Yu tri-.So, the present invention in actual use, can be by the when sampling apparatus main body 1 does not work
One end cap 112 and the second end cap 113 are screwed onto the two ends of body 11, and the first sealing station terrace 1124 by cone and the
Two sealing station terraces 1134 are supported on the first sealing ring 116 and the second sealing ring 117 respectively, and are utilized the first end cap 112
Gradually precession with the second end cap 113 and gradually compress, realize the first end cap 112 and the second end cap 113 to the close of body 11
Envelope capping, reaches effective sealing to Sulfhydryl Cotton absorber 13, it is ensured that sample absorbs validity of the workspace before work, and
Absorb the index stability after sample.When sampling apparatus main body 1 works, the first end cap 112 and the second end cap 113 are pulled down,
Make the both ends open of body 11, and the air inlet pipe 21 of air pump 2 is screwed onto the outlet side of body 11, it is close by the 3rd of cone the
Envelope step surface 214 is supported on the second sealing ring 117, and is gradually compressed using the gradually precession of air inlet pipe 21, and realization will enter
Tracheae 21 is tightly connected with body 11, and then can be opened air pump 2 and bypassed air through body 11 and by Sulfhydryl Cotton absorber 13,
Sulfhydryl Cotton absorber 13, which absorbs the leaded particulate in air-flow, is sampled, and gas flowmeter 3 calculates the volume of air-flow, is easy to
Subsequent statistical.Concrete structure can be to be formed with to fix the first sealing ring 116 and the second sealing ring 117 on the side face of body 11
Annular groove.Air inlet pipe 21 is to be rotatably connected with the main part of air pump 2, and then is easy to be spirally connected with body 11.
In order to increase the first sealing station terrace 1124, the second sealing station terrace 1134 and the 3rd sealing station terrace 214 and
The mutual cooperation degree of one sealing ring 116 and the second sealing ring 117, increases contact area, and then strengthens sealing property, preferably
Ground, the horizontal stroke of the first sealing station terrace 1124 of tapered slope form, the second sealing station terrace 1134 and the 3rd sealing station terrace 214
Section is indent camber line.I.e. tapered slope can form the compression relation of flexibility with the first sealing ring 116 and the second sealing ring 117.
In the simple detection operation surrounding air of the present invention whether leaded method, the two ends of glass tube are equipped close respectively
Capping, can effectively be protected to methylthymol blue chelating resin solid detection agent, it is ensured that methylthymol blue chelating tree
The validity and stability of fat solid detection agent；The concrete form of tapered slope also can be adjusted and set according to actual requirement
Meter；First sealing ring and the second sealing ring are preferably elastomeric material, and its concrete form and material etc. can enter according to actual requirement
Row adjustment and design；First internal thread, the second internal thread, the 3rd internal thread, the first external screw thread, the second external screw thread, the first sealing
It is step surface, the second sealing station terrace, the 3rd sealing station terrace, the first thin diameter section, the first wide section, the second thin diameter section, second thick
Footpath section and the first end cap, the second end cap, copper mesh layers, air inlet pipe, body, absorbent cotton silk screen, Sulfhydryl Cotton absorber, air pump are gentle
Concrete form, set location of flowmeter body etc. can be adjusted and design according to actual requirement.
The product form of the present invention is not limited to this case diagram and embodiment, and anyone carries out the appropriate of similar thinking to it
Change is modified, and all should be regarded as not departing from the patent category of the present invention.
Claims (3)
1. in a kind of simple detection operation surrounding air whether leaded detection means, it is characterised in that：Including sampling apparatus, even
Pass through the collecting bottle below sampling apparatus and the detection means below collecting bottle；
The sampling apparatus is including sampling apparatus main body, the air pump for the outlet side for being connected to sampling apparatus main body and located at air pump
Gas flowmeter in air inlet pipe；The sampling apparatus main body includes body, absorbent cotton silk screen and is installed in successively from outside to inside
Sulfhydryl Cotton absorber in absorbent cotton silk screen, the outlet side block of the body has copper mesh layers；Set between the two ends of the body
There is the feed tube upwardly extended, the feed tube is equipped with lid；The inlet end of the body is equipped with the first end cap, outlet side
It is equipped with the second end cap；The side face of the inlet end of the body is formed with the first external screw thread, and the first end lid is formed with and institute
State the first internal thread that the first external screw thread matches；The side face of the outlet side of the body is formed with the second external screw thread, described
Two end caps are formed with the second internal thread matched with second external screw thread；
The collecting bottle includes collecting bottle main body, the communicating pipe being communicated between collecting bottle main body and the body, is communicated in Sheng
Bottling lower body part and liquid outlet it is corresponding with the detection means go out liquid it is leading and be communicated in collecting bottle body top and upward
The blast pipe of extension, the upper port gear of the communicating pipe is provided with screen pack, and the blast pipe is equipped with lid, it is described go out liquid tap
It is equipped with switch；
The detection means include glass tube, the methylthymol blue chelating resin solid detection agent that is installed in glass tube and
Two are plugged in the absorbent cotton that methylthymol blue chelating resin solid detection agent two ends are positioned respectively, the glass tube
Upper port with it is described go out liquid tap liquid outlet it is corresponding.
2. in a kind of simple detection operation surrounding air according to claim 1 whether leaded detection means, its feature
It is：The inlet end side face of above-mentioned tubular body is provided with the first sealing ring between above-mentioned first external screw thread and the second external screw thread,
The medial surface of first end cap is formed with the first thin diameter section close to base and the first wide section close to lid mouth, and described the
The the first sealing station terrace mutually supported with first sealing ring, described first are formed between one thin diameter section and the first wide section
Sealing station terrace is the circular cone inclined-plane being tapered by lid mouth to base direction；It is thin that first internal thread is formed at described first
Footpath section；
The outlet side side face of the body is provided with the second sealing ring between second external screw thread and the first external screw thread, institute
The medial surface for stating the second end cap is formed with the second wide section of the second thin diameter section and close lid mouth close to base, described second
The the second sealing station terrace mutually supported with second sealing ring is formed between thin diameter section and the second wide section, described second is close
Envelope step surface is the circular cone inclined-plane being tapered by lid mouth to base direction；Second internal thread is formed at second thin footpath
Section；
The air inlet of the air inlet pipe of the air pump is formed with the 3rd internal thread matched with second external screw thread, the air inlet
The medial surface of pipe is formed with the 3rd thin diameter section away from the second sealing ring and the 3rd wide section close to the second sealing ring, described
The 3rd sealing station terrace mutually supported with second sealing ring, described are formed between 3rd thin diameter section and the 3rd wide section
Three sealing station terraces are by the circular cone inclined-plane of air inlet taper inward；3rd internal thread is formed at the 3rd thin footpath
Section.
3. in a kind of simple detection operation surrounding air according to claim 2 whether leaded detection means, its feature
It is：The cross section of above-mentioned tapered slope is indent camber line.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285759.3A CN104931490B (en) | 2015-05-29 | 2015-05-29 | In a kind of simple detection operation surrounding air whether leaded detection means |
| CN201710196018.7A CN106990103B (en) | 2015-05-29 | 2015-05-29 | In a kind of detection operating environment air whether leaded detection device |
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| CN201510285759.3A CN104931490B (en) | 2015-05-29 | 2015-05-29 | In a kind of simple detection operation surrounding air whether leaded detection means |
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| CN201710196018.7A Division CN106990103B (en) | 2015-05-29 | 2015-05-29 | In a kind of detection operating environment air whether leaded detection device |
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| CN104931490A CN104931490A (en) | 2015-09-23 |
| CN104931490B true CN104931490B (en) | 2017-07-25 |
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| CN201710196018.7A Active CN106990103B (en) | 2015-05-29 | 2015-05-29 | In a kind of detection operating environment air whether leaded detection device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106990103A (en) | 2017-07-28 |
| CN106990103B (en) | 2019-04-23 |
| CN104931490A (en) | 2015-09-23 |
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Address after: 350000, Fujian, Fuzhou province Cangshan new town built new North Road, No. 2, building F, District, west side of the -2 Applicant after: Fujian Tuo Pu detection technique company limited Address before: 350000, Fujian, Quanzhou province Cangshan new town built new North Road, No. 2, building F, District, west side of the -2 Applicant before: Fujian Tuo Pu detection technique company limited |
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Denomination of invention: Detection device for simply detecting whether air in operation environment contains lead Effective date of registration: 20200519 Granted publication date: 20170725 Pledgee: Agricultural Bank of China Limited Fuzhou Taijiang sub branch Pledgor: FUJIAN TUOPU DETECTION TECHNOLOGY Co.,Ltd. Registration number: Y2020350000034 |