CN207741989U - A kind of gas sampling assembly - Google Patents
A kind of gas sampling assembly Download PDFInfo
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- CN207741989U CN207741989U CN201820114435.2U CN201820114435U CN207741989U CN 207741989 U CN207741989 U CN 207741989U CN 201820114435 U CN201820114435 U CN 201820114435U CN 207741989 U CN207741989 U CN 207741989U
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Abstract
The utility model provides a kind of gas sampling assembly, belongs to exhaust gas sampling technique field.It solves the problems, such as that existing gas sampling assembly testing result is inaccurate, stability is poor and ineffective.In the present invention, gas sampling assembly cleans pipeline before experiment, ensure the quality of sample, so that it is guaranteed that the accuracy of inspection result, secondly, the case where which is also avoided that absorbing liquid suck-back, secondly, pass through the setting of the first sampling bottle so that gas sampling assembly is applied to acquire the experiment of less exhaust gas；Sample is acquired by the second sampling bottle and the first sampling bottle simultaneously so that gas sampling assembly is applied to acquire the places such as the factory of more exhaust gas, to improve the working efficiency of people, so, people can be more according to actual demand, selection device, to meet the needs of people.
Description
Technical field
The utility model belongs to exhaust gas sampling technique field, is related to a kind of gas sampling assembly.
Background technology
In stationary source exhaust gas sampling process, such as ammonia, hydrogen chloride in acquisition exhaust gas, in existing gas sampling assembly
There are following both sides defects：
One, it is to have residual gas influence in sample lines, is mixed in sample lines in the gaseous sample to be detected acquired
Remaining original gas causes testing result inaccurate；
Two, it is that swabbing is encountered down when sampling apparatus is automatically stopped, absorbing liquid is pumped, and sampling is caused to fail；
Three, during exhaust gas samples, people can not disposably acquire multigroup sample, to reduce working efficiency.
Utility model content
The purpose of this utility model is the presence of the above problem in view of the prior art, it is proposed that a kind of simple in structure, detection
As a result accurate, stability is good and the gas sampling assembly and its method of raising working efficiency.
The purpose of this utility model can be realized by following technical proposal：A kind of gas sampling assembly, including：
First sampling bottle, the first sampling bottle interpolation setting tool have the first delivery pipe of the first branch pipe and the second branch pipe, institute
It states and is also inserted with the first power pipe in the first sampling bottle, one end of first power pipe is equipped with the first vacuum pump；
First air inlet pipe is fixed on the first branch pipe, the first cut-off is equipped between first air inlet pipe and the first branch pipe
Valve and the first check valve；
First liquid bottle, is set to the side of the first sampling bottle, is inserted with the first fairlead in the first liquid bottle, and described first
Third shut-off valve and the second check valve are installed between fairlead and the second branch pipe, first is also inserted in the first liquid bottle
Pipe is introduced, the second shut-off valve is installed on the first introducing pipe.
In a kind of above-mentioned gas sampling assembly, described first, which introduces pipe, injects one end of the first liquid bottle close to the first liquid
The bottleneck of bottle, first fairlead inject bottom of bottle of the one end close to the first liquid bottle of the first liquid bottle.
In a kind of above-mentioned gas sampling assembly, first delivery pipe injects one end of the first sampling bottle close to first
The bottom of bottle of sampling bottle, first power pipe inject bottleneck of the one end close to the first sampling bottle of the first sampling bottle.
In a kind of above-mentioned gas sampling assembly, between first shut-off valve and the first check valve, third shut-off valve
It is equipped with first pipe between the second check valve.
A kind of gas sampling assembly further includes：
Second sampling bottle, the second sampling bottle interpolation setting tool have the second delivery pipe of third branch pipe and the 4th branch pipe, institute
It states and also plugs connecting tube in the second sampling bottle, first air inlet pipe and the first introducing Guan Junyu connecting tube unicom；
Second air inlet pipe is fixed on third branch pipe, and the 4th cut-off is equipped between second air inlet pipe and third branch pipe
Valve and third check valve；
Second liquid bottle, is set to the side of the second sampling bottle, is inserted with the second fairlead in the second liquid bottle, and described second
6th shut-off valve and the 4th check valve are installed between fairlead and the 4th branch pipe, second is also inserted in the second liquid bottle
Pipe is introduced, the 5th shut-off valve is installed on the second introducing pipe.
In a kind of above-mentioned gas sampling assembly, described second, which introduces pipe, injects one end of the second liquid bottle close to the second liquid
The bottleneck of bottle, second fairlead inject bottom of bottle of the one end close to the second liquid bottle of the second liquid bottle.
In a kind of above-mentioned gas sampling assembly, second delivery pipe injects one end of the second sampling bottle close to second
The bottom of bottle of sampling bottle, the connecting tube inject bottleneck of the one end close to the second sampling bottle of the second sampling bottle.
In a kind of above-mentioned gas sampling assembly, between the 4th shut-off valve and third check valve, the 6th shut-off valve
It is equipped with second pipe between the 4th check valve.
Compared with prior art, the utility model has the advantages that：
1, in the present invention, gas sampling assembly cleans pipeline before experiment, it is ensured that the quality of sample, from
And ensure to examine the accuracy of result, and secondly, the case where which is also avoided that absorbing liquid suck-back.
2, pass through the setting of the first sampling bottle so that gas sampling assembly is applied to acquire the experiment of less exhaust gas；
Sample is acquired by the second sampling bottle and the first sampling bottle simultaneously so that gas sampling assembly is applied to acquire more useless
The places such as the factory of gas, to improve the working efficiency of people, in this way, people can be more according to actual demand, selection device, from
And meets the needs of people.
Description of the drawings
Fig. 1 is the structural schematic diagram in embodiment one.
Fig. 2 is the structural schematic diagram in embodiment two.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one：
As shown in Figure 1, a kind of gas sampling assembly of the present embodiment includes the first sampling bottle 100, the first branch pipe 111, second
Branch pipe 112, the first delivery pipe 110, the first power pipe 120, the first vacuum pump 121, the first air inlet pipe 200, the first shut-off valve
210, the first check valve 220, the first liquid bottle 300, the first fairlead 310, third shut-off valve 311, the second check valve 312, first
Introduce pipe 320 and the second shut-off valve 321.
First sampling bottle, 100 interpolation setting tool has the first delivery pipe 110 of the first branch pipe 111 and the second branch pipe 112, and first adopts
The first power pipe 120 is also inserted in sample bottle 100, one end of the first power pipe 120 is equipped with the first vacuum pump 121, the first air inlet
Pipe 200 is fixed on the first branch pipe 111, be equipped between the first air inlet pipe 200 and the first branch pipe 111 first shut-off valve 210 and
First check valve 220, the first liquid bottle 300 are set to the side of the first sampling bottle 100, the first extraction are inserted in the first liquid bottle 300
Pipe 310 is equipped with third shut-off valve 311 and the second check valve 312 between first fairlead 310 and the second branch pipe 112, this
It is also inserted with the first introducing pipe 320 in one liquid bottle 300, the second shut-off valve 321 is installed on first introducing pipe 320, when work, the
One vacuum pump 121 is in open state, because the first vacuum pump 121 is by connected first sampling bottle 100 of the first power pipe 120, makes
It obtains the first vacuum pump 121 in the process of running, always extracts the gas in the first sampling bottle 100 out, to reduce the first sampling
Air pressure in bottle 100, in this way, when the first shut-off valve 210 is opened, ambient atmos are sucked into first and adopted by the first air inlet pipe 200
In sample bottle 100, when the second shut-off valve 321 is opened simultaneously with third shut-off valve 311, the first liquid bottle 300 and ambient atmosphere unicom,
So that the air pressure of the first liquid bottle 300 is more than the air pressure in the first sampling bottle 100, in this way, can be by storage in the first liquid bottle 300
Absorbing liquid is pumped by the first fairlead 310, the second branch pipe 112 and the first delivery pipe 110 to the first sampling bottle 100；Its
It is secondary, during the work time, when the first vacuum pump 121 is damaged or powered off suddenly, the absorption in the first sampling bottle 100 will be led to
Absorbing liquid is discharged by 110 suck-back of the first delivery pipe to the first liquid bottle 300 or by the first air inlet pipe 200 for liquid, and in this reality
In novel, the setting of the first check valve 220 prevents absorbing liquid from entering in the first fairlead 310, the second check valve 312
Setting prevents absorbing liquid from entering in the first air inlet pipe 200, the case where to avoid absorbing liquid suck-back.
First, which introduces pipe 320, injects one end of the first liquid bottle 300 close to the bottleneck of the first liquid bottle 300, the first fairlead 310
Bottom of bottle of the one end close to the first liquid bottle 300 of the first liquid bottle 300 is injected, the first delivery pipe 110 injects the one of the first sampling bottle 100
End is close to the bottom of bottle of the first sampling bottle 100, and one end of the first power pipe 120 the first sampling bottle 100 of reeve is close to the first sampling bottle
100 bottleneck, between the first shut-off valve 210 and the first check valve 220, between third shut-off valve 311 and the second check valve 312
Equipped with first pipe 410.
A kind of method of gas sampling assembly, which is characterized in that including：
Step 1：The first vacuum pump 121 is opened, and opens the first shut-off valve 210, closes the second shut-off valve 321 and third
Exhaust gas is passed sequentially through the first air inlet pipe 200, the first branch pipe 111, first conveys by shut-off valve 311 by the first vacuum pump 121
Pipe 110, the first sampling bottle 100 and the first power pipe 120, to convey the first air inlet pipe 200, the first branch pipe 111, first
Foreign gas discharge in pipe 110, the first sampling bottle 100 and the first power pipe 120, after five minutes, just can reach clear
Wash the first air inlet pipe 200, the first branch pipe 111, the first delivery pipe 110, the first sampling bottle 100 and the first power pipe 120 mesh
, and then ensure to collect the quality of sample；
Step 2：The first shut-off valve 210 is closed, exhaust gas is prevented to be passed through, opens the second shut-off valve 321 and third shut-off valve
311, since the first vacuum pump 121 at this time is still in open state so that the air pressure in the first sampling bottle 100 is less than first
The air pressure of liquid bottle 300 makes the absorbing liquid stored in the first liquid bottle 300 pass through the first fairlead 310, the second branch pipe 112 and the
One delivery pipe 110 is pumped in the first sampling bottle 100；
Step 3：According to fixed-contamination source sampling method for normalizing, third shut-off valve 311 is closed, absorbing liquid is prevented to aspirate, and
The first shut-off valve 210 is opened, by the effect of the first vacuum pump 121, by extraneous Abgasabsaugung to the first air inlet pipe 200,
And pass sequentially through the first air inlet pipe 200, the first branch pipe 111, the first delivery pipe 110 and be passed through in the first sampling bottle 100, make first to adopt
Absorbing liquid in sample bottle 100 dissolves the exhaust gas；
Step 4：Seal the first sampling bottle 100, and submitted sample.
To sum up, the corresponding gas sampling assembly of the embodiment carries out the product that cleaning can ensure that sample before experiment to pipeline
Matter, it is ensured that examine the accuracy of result, secondly, which is also avoided that suck-back situation, in this way, can be by the gas sampling
Device is applied to acquire the experiment of less exhaust gas.
Embodiment two：
As shown in Fig. 2, the present embodiment and the distinctive points of embodiment one are, the present embodiment increases by one group of second liquid bottle 700
With the second sampling bottle 500.
Specifically, 500 interpolation setting tool of the second sampling bottle has the second delivery pipe of third branch pipe 511 and the 4th branch pipe 512
510, also plug connecting tube 520 in the second sampling bottle 500, and the first air inlet pipe and first introduce pipe 320 with connecting tube 520
Unicom；Second air inlet pipe 600 is fixed on third branch pipe 511, and the 4th is equipped between the second air inlet pipe 600 and third branch pipe 511
Shut-off valve 620 and third check valve 610, the second liquid bottle 700 are set to the side of the second sampling bottle 500,700 interpolation of the second liquid bottle
Equipped with the second fairlead 710, the 6th shut-off valve 711 and the 4th is installed single between second fairlead 710 and the 4th branch pipe 512
To valve 712, it is also inserted with the second introducing pipe 720 in the second liquid bottle 700, the 5th shut-off valve is installed on the second introducing pipe 720
721, when work, the first vacuum pump 121 is in open state, because the first vacuum pump 121 is connected by the first power pipe 120120
First sampling bottle 100 so that the first vacuum pump 121 in the process of running, is always extracted the gas in the first sampling bottle 100 out,
To reduce the air pressure in the first sampling bottle 100, in this way, when the 4th shut-off valve 620 and the first shut-off valve 210 are opened, second
Air inlet pipe 600 sucks extraneous exhaust gas, and passes sequentially through the second sampling bottle 500, in the first sampling bottle 100, when the 5th shut-off valve
721 and the 6th shut-off valve 711 when opening simultaneously, the second liquid bottle 700 and ambient atmosphere unicom, the sampling of the second liquid bottle 700 and second
500 unicom of bottle, 500 unicom of the first liquid bottle 300 and the second sampling bottle so that the air pressure of the second liquid bottle 700 is more than the first sampling bottle
Air pressure in 100, when the air pressure in the first sampling bottle 100 is less than the air pressure in the first liquid bottle 300,300 memory of the first liquid bottle
The absorbing liquid put is pumped by the first fairlead 310, the second branch pipe 112 and the first delivery pipe 110 to the first sampling bottle 100
Interior, simultaneously, the gas in the second sampling bottle 500 is supplemented to the first liquid bottle 300 by connecting tube and the first introducing pipe 320
It is interior, reduce the air pressure in the second sampling bottle 500 so that and the air pressure of the second liquid bottle 700 is more than the air pressure in the second sampling bottle 500,
In this way, the absorbing liquid stored in the second liquid bottle 700 passes through the second fairlead 710, the 4th branch pipe 512 and the second delivery pipe 510
It pumps to the second sampling bottle 500；It secondly, during the work time, will when the first vacuum pump 121 is damaged or powered off suddenly
Cause the absorbing liquid in the second sampling bottle 500 by 510 suck-back of the second delivery pipe to the second liquid bottle 700 or by the second air inlet pipe
600 absorbing liquid is discharged, and simultaneously, the absorbing liquid also led in the first sampling bottle 100 passes through the first delivery pipe 110 and
In one air inlet pipe suck-back to the second sampling bottle 500 or by 310 suck-back of the first fairlead to the first liquid bottle 300, and in this reality
In novel, the setting of the 4th check valve 712 prevents absorbing liquid from entering in the second fairlead 710, third check valve 610
Setting prevents absorbing liquid from entering in the second air inlet pipe 600, the case where to avoid absorbing liquid suck-back, the first check valve 220
Setting, avoids in absorbing liquid suck-back to the second sampling bottle 500, the setting of the second check valve 312 avoids absorbing liquid suck-back to first
In liquid bottle 300.
Second, which introduces pipe 720, injects one end of the second liquid bottle 700 close to the bottleneck of the second liquid bottle 700, the second fairlead 710
Bottom of bottle of the one end close to the second liquid bottle 700 of the second liquid bottle 700 is injected, the second delivery pipe 510 injects the one of the second sampling bottle 500
End is close to the bottom of bottle of the second sampling bottle 500, and one end of the second sampling bottle 500 of reeve of connecting tube 520 is close to the second sampling bottle 500
Bottleneck.
It is all provided between 4th shut-off valve 620 and third check valve 610, between the 6th shut-off valve 711 and the 4th check valve 712
There is second pipe 420.
A kind of method of gas sampling assembly, which is characterized in that including：
Step 1：The first vacuum pump 121 is opened, and opens the 4th shut-off valve 620, the first shut-off valve 210, closes the 5th section
Only valve 721, the 6th shut-off valve 711, the second shut-off valve 321 and third shut-off valve 311, by the effect of the first vacuum pump 121,
Exhaust gas is passed sequentially through into the second air inlet pipe 600, third branch pipe 511, the second delivery pipe 510, the second sampling bottle 500, connecting tube
520, the first air inlet pipe, the first branch pipe, the first delivery pipe 110, the first sampling bottle 100 and the first power pipe 120, to by the
Two air inlet pipe 600, third branch pipe 511, the second delivery pipe 510, the second sampling bottle 500, connecting tube 520, the first air inlet pipe, first
Foreign gas discharge in branch pipe, the first delivery pipe 110, the first sampling bottle 100 and the first power pipe 120, by five minutes
Afterwards, it just can reach the second air inlet pipe 600 of cleaning, third branch pipe 511, the second delivery pipe 510, the second sampling bottle 500, connecting tube
520, the first air inlet pipe, the purpose of the first branch pipe, the first delivery pipe 110, the first sampling bottle 100 and the first power pipe 120, into
And ensure to collect the quality of sample.
Step 2：The 4th shut-off valve 620 and the first shut-off valve 210 are closed, exhaust gas is prevented to be passed through, opens the 5th shut-off valve
721, the 6th shut-off valve 711, the second shut-off valve 321 and third shut-off valve 311, since the first vacuum pump 121 at this time remains unchanged
In open state, the absorbing liquid stored in the second liquid bottle 700 is made to pass through the second fairlead 710, the 4th branch pipe 512 and second
Delivery pipe 510 is pumped in the second sampling bottle 500, meanwhile, so that the absorbing liquid stored in the first liquid bottle 300 is passed through the first fairlead
310, the second branch pipe 112 and the first delivery pipe 110 are pumped in the first sampling bottle 100；
Step 3：According to fixed-contamination source sampling method for normalizing, the 6th shut-off valve 711 and third shut-off valve 311, resistance are closed
Only absorbing liquid is aspirated, and the 4th shut-off valve 620 and the first shut-off valve 210 is opened, by the effect of the first vacuum pump 121, by exhaust gas
It passes sequentially through the second air inlet pipe 600, third branch pipe 511, the second delivery pipe 510 to be passed through in the second sampling bottle 500, makes the second sampling
Absorbing liquid dissolved gas in bottle 500, and undissolved gas will pass through connecting tube 520, the first air inlet pipe 200, the first branch pipe
111, the first delivery pipe 110 is passed through in the first sampling bottle 100, makes the absorbing liquid dissolved gas in the first sampling bottle 100.
Step 4：Seal the second sampling bottle 500 and the first sampling bottle 100, and submitted sample.
To sum up, the corresponding gas sampling assembly of the embodiment being capable of the multigroup sample of Quick Acquisition so that the gas sampling fills
It sets and can apply to need to acquire the places such as the factory of more exhaust gas, secondly, which, which also has, avoids suck-back situation,
In this way, the gas sampling assembly can be applied to acquire the experiment of less exhaust gas, in addition, by pipeline before experiment
Cleaning, it is ensured that the quality of sample, it is ensured that examine the accuracy of result.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (8)
1. a kind of gas sampling assembly, which is characterized in that including：
First sampling bottle, the first sampling bottle interpolation setting tool have the first delivery pipe of the first branch pipe and the second branch pipe, and described
The first power pipe is also inserted in one sampling bottle, one end of first power pipe is equipped with the first vacuum pump；
First air inlet pipe is fixed on the first branch pipe, be equipped between first air inlet pipe and the first branch pipe the first shut-off valve with
And first check valve；
First liquid bottle is set to the side of the first sampling bottle, and the first fairlead is inserted in the first liquid bottle, and described first draws
Third shut-off valve and the second check valve are installed between pipe and the second branch pipe, the first introducing is also inserted in the first liquid bottle
It manages, the second shut-off valve is installed on the first introducing pipe.
2. a kind of gas sampling assembly according to claim 1, which is characterized in that described first, which introduces pipe, injects the first liquid
Close to the bottleneck of the first liquid bottle, first fairlead injects bottle of the one end close to the first liquid bottle of the first liquid bottle for one end of bottle
Bottom.
3. a kind of gas sampling assembly according to claim 1, which is characterized in that first delivery pipe injects first and adopts
Close to the bottom of bottle of the first sampling bottle, one end that first power pipe injects the first sampling bottle is sampled close to first for one end of sample bottle
The bottleneck of bottle.
4. a kind of gas sampling assembly according to claim 1, which is characterized in that first shut-off valve and first is unidirectionally
It is equipped with first pipe between valve, between third shut-off valve and the second check valve.
5. a kind of gas sampling assembly according to claim 1, which is characterized in that described, which is characterized in that further include：
Second sampling bottle, the second sampling bottle interpolation setting tool have the second delivery pipe of third branch pipe and the 4th branch pipe, and described
Connecting tube is also plugged in two sampling bottles, first air inlet pipe and first introduce Guan Junyu connecting tube unicom；
Second air inlet pipe is fixed on third branch pipe, be equipped between second air inlet pipe and third branch pipe the 4th shut-off valve with
And third check valve；
Second liquid bottle is set to the side of the second sampling bottle, and the second fairlead is inserted in the second liquid bottle, and described second draws
6th shut-off valve and the 4th check valve are installed between tetra- branch pipes of Guan Yu, the second introducing is also inserted in the second liquid bottle
It manages, the 5th shut-off valve is installed on the second introducing pipe.
6. a kind of gas sampling assembly according to claim 5, which is characterized in that described second, which introduces pipe, injects the second liquid
Close to the bottleneck of the second liquid bottle, second fairlead injects bottle of the one end close to the second liquid bottle of the second liquid bottle for one end of bottle
Bottom.
7. a kind of gas sampling assembly according to claim 5, which is characterized in that second delivery pipe injects second and adopts
One end of sample bottle is close to the bottom of bottle of the second sampling bottle, and one end of the second sampling bottle of the connecting tube reeve is close to the second sampling bottle
Bottleneck.
8. a kind of gas sampling assembly according to claim 5, which is characterized in that the 4th shut-off valve and third are unidirectional
It is equipped with second pipe between valve, between the 6th shut-off valve and the 4th check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820114435.2U CN207741989U (en) | 2018-01-23 | 2018-01-23 | A kind of gas sampling assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820114435.2U CN207741989U (en) | 2018-01-23 | 2018-01-23 | A kind of gas sampling assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207741989U true CN207741989U (en) | 2018-08-17 |
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ID=63123717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201820114435.2U Active CN207741989U (en) | 2018-01-23 | 2018-01-23 | A kind of gas sampling assembly |
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| CN (1) | CN207741989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426751A (en) * | 2018-01-23 | 2018-08-21 | 宁波市环境监测中心 | A kind of gas sampling assembly and its method |
-
2018
- 2018-01-23 CN CN201820114435.2U patent/CN207741989U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426751A (en) * | 2018-01-23 | 2018-08-21 | 宁波市环境监测中心 | A kind of gas sampling assembly and its method |
| CN108426751B (en) * | 2018-01-23 | 2023-11-14 | 宁波市环境监测中心 | Gas sampling device and method thereof |
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