CN209911064U - Gas sampling device for environment detection - Google Patents
Gas sampling device for environment detection Download PDFInfo
- Publication number
- CN209911064U CN209911064U CN201920291572.8U CN201920291572U CN209911064U CN 209911064 U CN209911064 U CN 209911064U CN 201920291572 U CN201920291572 U CN 201920291572U CN 209911064 U CN209911064 U CN 209911064U
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- China
- Prior art keywords
- sampling
- valve
- pipe
- air
- sample
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- Expired - Fee Related
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 83
- 238000001514 detection method Methods 0.000 title abstract description 7
- 230000007613 environmental effect Effects 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 41
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a gas sampling device for environmental detection, including support frame and sampling pipe, aspiration pump and gas bomb, the sampling pipe is provided with inlet end, outlet end and sample connection, the sample connection is connected with the sample valve, the sample connection is located the middle part of sampling pipe, and inlet end and outlet end inside are provided with the sampling pipe slip and sealed complex piston, the piston fixedly connected with push rod, be provided with first valve and the second valve of intercommunication sampling pipe inner chamber on the piston of inlet end department, be provided with the third valve of intercommunication sampling pipe inner chamber on the piston of outlet end department; the air pump is connected with an exhaust pipe, the exhaust pipe is connected with a third valve, the first valve is connected with a first air inlet pipe, the second valve is connected with a second air inlet pipe, and the first air inlet pipe is connected with an air storage bottle; the air pump is connected with a storage battery through a switch. This device can prevent that external air from sneaking into the sample air when taking out the sample, guarantees the purity of sample air and the accuracy of testing result.
Description
Technical Field
The utility model belongs to the sampling equipment field, especially, a gaseous sampling device for environmental monitoring.
Background
The gas sampling device samples air in a certain environment so as to detect air components of a sampling point and know the environment of the sampling point. For the air sampling equipment, the leakproofness is very important, and the leakproofness can lead to the external air to mix in the sample air for not strong, and in addition, when taking out sample air from the sampling device, the easy air that mixes in the external world leads to the sample impure, influences the accuracy of testing result.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas sampling device for environment measuring can prevent that external air from sneaking into the sample air when taking out the sample, guarantees the purity of sample air and testing result's accuracy.
The purpose of the utility model is realized like this: a gas sampling device for environment detection comprises a support frame, a sampling pipe, an air pump and a gas storage bottle, wherein the sampling pipe, the air pump and the gas storage bottle are arranged on the support frame, the sampling pipe is provided with an air inlet end, an air outlet end and a sampling port, the sampling port is connected with a sampling valve, the air inlet end and the air outlet end are respectively arranged at two ends of the sampling pipe, the sampling port is arranged at the middle part of the sampling pipe, pistons which are in sliding and sealing fit with the sampling pipe are arranged inside the air inlet end and the air outlet end, the pistons are fixedly connected with push rods, a first valve and a second valve which are communicated with the inner cavity of the sampling pipe are arranged on the pistons at the air inlet end, and a third valve which is communicated with the; the air pump is connected with an exhaust pipe, the exhaust pipe is connected with a third valve, the first valve is connected with a first air inlet pipe, the second valve is connected with a second air inlet pipe, and the first air inlet pipe is connected with an air storage bottle; the air pump is connected with a storage battery through a switch.
Further, the sampling pipe is U-shaped.
Further, the gas storage cylinder is a nitrogen gas cylinder.
Further, the push rod is a threaded rod, one end of the threaded rod is connected with the piston through a bearing, the other end of the threaded rod is provided with a rotating handle, and the threaded rod is in threaded fit with the support frame.
The utility model has the advantages that: this device is gaseous washes the sampling pipe in the usable gas bomb before the sampling, reduces the residue of original gas composition in the sampling pipe to improve the gaseous purity of the sample of gathering. When discharging sample gas, promote the push rod removal of inlet end and the end of giving vent to anger to promote the piston and remove, discharge sample gas from the middle part position of sampling pipe, can avoid during external air sneaks sample gas, further improve sample gas's purity, be favorable to guaranteeing the accuracy of testing result.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, the utility model discloses a gaseous sampling device for environmental detection, including support frame 1 and the sampling pipe 2, aspiration pump 3 and the gas bomb 4 of setting on support frame 1, sampling pipe 2 is provided with inlet end 21, gives vent to anger end 22 and sample connection 23, and sampling pipe 2 can adopt nonrust steel pipe, toughened glass pipe etc. the external diameter is at 20cm to 50cm, and concrete size is according to the concrete setting of required air sampling volume. Sampling pipe 2 can be the linear type, also can the crooked setting, for example, set up sampling pipe 2 into the U-shaped, inlet end 21 and the end 22 of giving vent to anger up, and sample connection 23 is located the bottommost, but make full use of space reduces the volume of this device.
The use process of the device is as follows: after the device is moved to a sampling point, the third valve 12 is opened, the second valve 11 is closed, then the first valve 7 is opened, high-pressure gas in the gas storage bottle 4 flows into the sampling pipe 2 at a high speed, the sampling pipe 2 is cleaned and then is discharged from the exhaust pipe 8, original gas in the sampling pipe 2 is discharged, after the sampling pipe is continuously used for 40 to 60 seconds, the first valve 7 is closed, the second valve 11 is opened, the switch 15 is closed, the air pump 3 is electrically operated, gas in the sampling pipe 2 is pumped out, air in a sampling position enters the sampling pipe 2 through the second air inlet pipe 10, after the sampling pipe is continuously used for 2 to 3 minutes, the switch 15 is disconnected, the third valve 12 and the second valve 11 are immediately closed, and sampling is finished. When the sample air needs to be taken out, the sampling valve 13 is opened, the piston 5 is pushed to move through the push rod 6, the sample air in the sampling pipe 2 is extruded out, the sample air is exhausted from the sampling valve 13, and the sample air is introduced into the detection container through a pipeline.
This device is gaseous washing sampling pipe 2 in available gas bomb 4 before the sampling, reduces the residue of the original gas composition in sampling pipe 2 to improve the gaseous purity of the sample of gathering. When discharging sample gas, promote the push rod 6 removal of inlet end and the end of giving vent to anger to promote piston 5 and remove, discharge sample gas from the middle part position of sampling pipe 2, can avoid during external air sneaks sample gas, further improve sample gas's purity, be favorable to guaranteeing the accuracy of testing result.
The push rod 6 is pushed by hand, in order to guarantee that the push rod 6 is pushed steadily at the uniform velocity, the push rod 6 is a threaded rod, one end of the threaded rod is connected with the piston 5 through a bearing, the other end of the threaded rod is provided with a rotating handle 14, and the threaded rod is in threaded fit with the support frame 1. By rotating the rotary knob 14, the push rod 6 can be moved linearly by the screw thread, thereby pushing the piston 5 to move.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A gas sampling device for environmental sensing, characterized by: comprises a supporting frame (1), a sampling pipe (2), an air pump (3) and an air storage bottle (4) which are arranged on the supporting frame (1), the sampling pipe (2) is provided with an air inlet end (21), an air outlet end (22) and a sampling port (23), the sampling port (23) is connected with a sampling valve (13), the air inlet end (21) and the air outlet end (22) are respectively positioned at two ends of the sampling pipe (2), the sampling port (23) is positioned in the middle part of the sampling pipe (2), and the air inlet end (21) and the air outlet end (22) are internally provided with pistons (5) which are matched with the sampling pipe (2) in a sliding and sealing way, the piston (5) is fixedly connected with a push rod (6), a first valve (7) and a second valve (11) which are communicated with the inner cavity of the sampling pipe (2) are arranged on the piston (5) at the air inlet end (21), and a third valve (12) which is communicated with the inner cavity of the sampling pipe (2) is arranged on the piston (5) at the air outlet end (22); the air pump (3) is connected with an exhaust pipe (8), the exhaust pipe (8) is connected with a third valve (12), the first valve (7) is connected with a first air inlet pipe (9), the second valve (11) is connected with a second air inlet pipe (10), and the first air inlet pipe (9) is connected with the air storage bottle (4); the air pump (3) is connected with a storage battery (16) through a switch (15).
2. A gas sampling apparatus for environmental sensing according to claim 1, wherein: the sampling pipe (2) is U-shaped.
3. A gas sampling apparatus for environmental sensing according to claim 1, wherein: the gas storage cylinder (4) is a nitrogen cylinder.
4. A gas sampling apparatus for environmental sensing according to claim 1, wherein: the push rod (6) is a threaded rod, one end of the threaded rod is connected with the piston (5) through a bearing, the other end of the threaded rod is provided with a rotating handle (14), and the threaded rod is in threaded fit with the support frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920291572.8U CN209911064U (en) | 2019-03-07 | 2019-03-07 | Gas sampling device for environment detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920291572.8U CN209911064U (en) | 2019-03-07 | 2019-03-07 | Gas sampling device for environment detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209911064U true CN209911064U (en) | 2020-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920291572.8U Expired - Fee Related CN209911064U (en) | 2019-03-07 | 2019-03-07 | Gas sampling device for environment detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209911064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858584A (en) * | 2021-01-08 | 2021-05-28 | 艾尔燃烧技术(杭州)有限公司 | Boiler flue gas detection equipment |
-
2019
- 2019-03-07 CN CN201920291572.8U patent/CN209911064U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858584A (en) * | 2021-01-08 | 2021-05-28 | 艾尔燃烧技术(杭州)有限公司 | Boiler flue gas detection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200107 |