CN214334395U - Portable sampling device - Google Patents
Portable sampling device Download PDFInfo
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- CN214334395U CN214334395U CN202120355912.6U CN202120355912U CN214334395U CN 214334395 U CN214334395 U CN 214334395U CN 202120355912 U CN202120355912 U CN 202120355912U CN 214334395 U CN214334395 U CN 214334395U
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- bottle
- absorption
- intake pipe
- flowmeter
- way valve
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Abstract
The utility model discloses a portable sampling device, including the absorption bottle that is equipped with the absorption liquid, intake pipe and outlet duct, the absorption bottle includes that bottle and integration set up the buffering ball bubble on the bottle, the upper end of buffering ball bubble is provided with the mill mouth and connects, be provided with the mill mouth bottle plug in the mill mouth connects, the one end of intake pipe is the inlet end, the other end passes and stretches into in the absorption liquid in the absorption bottle behind the bottle plug, and the other end bottom of intake pipe is equipped with porous sand chip, the one end of outlet duct is followed the mill mouth bottle plug and is passed back and absorption bottle intercommunication, the other end has the flowmeter through three-way valve connection, hose connection sample connection is passed through in another export of three-way valve, the flowmeter is used for adjusting the velocity of flow of sample gas and the volume of measurement sample gas. The utility model discloses a directly absorb the methyl alcohol in the sample gas in the absorption liquid, take the laboratory again and carry out chromatographic analysis or colorimetric analysis, avoided condensing of gas sampling at gas sampling bag, guaranteed the accuracy of analytical data.
Description
Technical Field
The utility model relates to a sampling device especially relates to a be applied to portable sampling device of methanol determination in middle and low temperature methanol washing carbon dioxide exhaust.
Background
The removal of acid gas carbon dioxide in coal gas mainly adopts a low-temperature methanol washing technology, but the discharged carbon dioxide gas has a small amount of methanol content, and methanol is a main contributor of VOC (volatile organic compounds), so that the national strict requirements on the emission index are met.
The method for measuring the methanol in the carbon dioxide exhaust gas is mainly gas chromatography. However, the temperature of the carbon dioxide exhaust gas is generally about 10 ℃, and the gas contains high-content water vapor, so the sampling link is very important. However, at present, most of the methanol in the carbon dioxide exhaust gas is directly sampled and then taken into a laboratory for chromatographic analysis or colorimetric analysis. In this process, methanol in the carbon dioxide gas and water vapor therein are condensed into liquid, resulting in low measurement results, especially in winter.
Disclosure of Invention
In view of this, the utility model aims at providing a portable sampling device, aim at overcoming the current gaseous sample of directly taking that exists when carrying out the survey of methanol in the carbon dioxide exhaust and then take to carry out in the laboratory chromatographic analysis or colorimetric analysis can have the defect that the testing result is on the low side.
In order to achieve the purpose of the utility model, the technical proposal is as follows:
the utility model provides a portable sampling device, is including absorption bottle, intake pipe and the outlet duct that is equipped with the absorption liquid, the absorption bottle includes that bottle and integration set up the buffering ball bubble on the bottle, the upper end of buffering ball bubble is provided with the mill mouth joint, be provided with the mill mouth bottle plug in the mill mouth joint, the one end of intake pipe is the inlet end, and the other end passes and stretches into in the absorption liquid in the absorption bottle behind the bottle plug, and the other end bottom of intake pipe is equipped with porous sand chip, the one end of outlet duct is followed the mill mouth bottle plug and is passed back and absorption bottle intercommunication, and the other end has a flowmeter through three-way valve connection, hose connection sample connection is passed through in another export of three-way valve, the flowmeter is used for adjusting the velocity of flow of sample gas and the volume of measurement sample gas.
As a further improvement of the utility model, the diameter of the buffering bulb is 1.2-1.5 times of the diameter of the bottle body, and the buffering bulb is used for buffering the pressure of the sample gas.
As a further improvement, the utility model also comprises a fixing plate, the absorption bottle the flowmeter and the three-way valve are all fixed on a mounting plate.
The utility model has the advantages that:
(1) the utility model has compact appearance, convenient carrying and easy operation, and is suitable for sampling methanol in low-temperature gas;
(2) in order to improve the accuracy of sample gas analysis, the utility model directly absorbs the methanol in the sample gas into the absorption liquid, and then the sample gas is taken to a laboratory for chromatographic analysis or colorimetric analysis, thereby avoiding the condensation of gas sampling in a gas sampling bag and ensuring the accuracy of analysis data;
(2) the arrangement of the buffering bulb can avoid the damage of the change of the gas pressure to the flowmeter;
(4) through being equipped with porous sand chip bottom the intake pipe for the impulsive force of sample gas from the intake pipe release diminishes, and porous sand chip's setting makes sample gas can form the whirl in the absorption bottle, has accelerateed the absorption of methyl alcohol, has improved absorption efficiency.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram in embodiment 2 of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1
As shown in fig. 1-2, a portable sampling device comprises an absorption bottle 1 filled with absorption liquid, an air inlet pipe 2 and an air outlet pipe 3, the absorption bottle 1 comprises a bottle body 4 and a buffering bulb 5 integrally arranged on the bottle body 4, the upper end of the buffering bulb 5 is provided with a ground joint 6, a ground bottle plug 7 is arranged in the ground joint 6, one end of the air inlet pipe 2 is an air inlet end, the other end of the air inlet pipe penetrates through the bottle plug and then extends into the absorption liquid in the absorption bottle 1, and the bottom of the other end of the air inlet pipe 2 is provided with a porous sand chip 8, one end of the air outlet pipe 3 is communicated with the absorption bottle 1 after passing through the ground bottle stopper 7, the other end is connected with a flowmeter 10 through a three-way valve 9, the air outlet of the flowmeter 10 is directly discharged outside, the other outlet of the three-way valve 9 is connected with a sampling port 12 through a hose 11, the flow meter 10 is used to regulate the flow rate of the sample gas and to meter the volume of the sample gas.
The diameter of the buffering bulb 5 is 1.2-1.5 times of the diameter of the bottle body 4, and the buffering bulb 5 is used for buffering the pressure of the sample gas.
Example 2
Based on the structure of embodiment 1, in embodiment 2, as shown in fig. 2, the portable sampling device further includes a fixing plate 13, and the absorption bottle 1, the flow meter 10 and the three-way valve 9 are all fixed on a mounting plate, so as to be portable.
The utility model discloses when using, arrange absorption liquid in absorption bottle 1 earlier, rotatory three-way valve 9 makes outlet duct 3 and sample connection 12 not communicate, and in the sample gas got into the absorption liquid in absorption bottle 1 through intake pipe 2, adjust the sample gas to certain velocity of flow, then 9 directions of rotary valve three-way valve made sample connection 12 and outlet duct 3 communicate for the gas that does not absorb passes through outlet duct 3 and discharges, and the timing is according to the content settlement time of methyl alcohol in the carbon dioxide gas.
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, improvement, component separation or combination made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a portable sampling device, is including absorption bottle, intake pipe and the outlet duct that is equipped with the absorption liquid, its characterized in that: the absorption bottle includes that bottle and integration set up the buffering ball bubble on the bottle, the upper end of buffering ball bubble is provided with the mill mouth joint, be provided with the mill mouth bottle plug in the mill mouth joint, the one end of intake pipe is the inlet end, and during the other end passed the absorption liquid that stretches into in the absorption bottle behind the bottle plug, and the other end bottom of intake pipe is equipped with porous sand chip, the one end of outlet duct was passed back and is absorbed the bottle intercommunication from the mill mouth bottle plug, and the other end has a flowmeter through three-way valve connection, hose connection sample connection is passed through to another export of three-way valve, the flowmeter is used for adjusting the gaseous velocity of flow of sample and the gaseous volume of measurement sample.
2. A portable sampling device according to claim 1, wherein: the diameter of the buffering bulb is 1.2-1.5 times of that of the bottle body, and the buffering bulb is used for buffering the pressure of the sample gas.
3. A portable sampling device according to claim 1, wherein: the absorption bottle, the flowmeter and the three-way valve are all fixed on a mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120355912.6U CN214334395U (en) | 2021-02-06 | 2021-02-06 | Portable sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120355912.6U CN214334395U (en) | 2021-02-06 | 2021-02-06 | Portable sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214334395U true CN214334395U (en) | 2021-10-01 |
Family
ID=77884939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120355912.6U Active CN214334395U (en) | 2021-02-06 | 2021-02-06 | Portable sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214334395U (en) |
-
2021
- 2021-02-06 CN CN202120355912.6U patent/CN214334395U/en active Active
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