CN214894365U - Negative pressure gas production barrel - Google Patents
Negative pressure gas production barrel Download PDFInfo
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- CN214894365U CN214894365U CN202120991436.7U CN202120991436U CN214894365U CN 214894365 U CN214894365 U CN 214894365U CN 202120991436 U CN202120991436 U CN 202120991436U CN 214894365 U CN214894365 U CN 214894365U
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Abstract
The utility model discloses a negative pressure gas production barrel, which comprises a barrel body, a shell and an air bag, wherein an upper port of the barrel body is buckled with an end cover, the end cover is provided with a through hole communicated with the interior of the barrel body, a sleeve is fixed in the through hole, the air bag is arranged in the barrel body, the upper end of the air bag is inserted in the sleeve and is connected with a leading-out pipe extending out of the sleeve; the bottom of the barrel body and one side of the shell are respectively and correspondingly provided with a first air inlet/outlet and a second air inlet/outlet, an air pump capable of pumping air and inflating air is arranged inside the shell, and the air pump is respectively connected with the first air inlet/outlet and the second air inlet/outlet. In the sampling process of the utility model, the air pump does not contact with the gas sample, and pollutants such as oil stain and the like can not be mixed into the gas sample, thereby causing no pollution to the collected gas sample; and the gas sample is replaced for many times, and the gas sample capable of truly reflecting the content of the waste gas in the flue can be obtained through one-time gas production operation, so that the subsequent detection precision and accuracy are ensured.
Description
Technical Field
The utility model relates to a flue waste gas collection system technical field specifically is a negative pressure gas production bucket.
Background
In the field of environmental detection, it is an important ring to detect the exhaust gas discharged from a flue, especially the exhaust gas discharged from a factory flue, and the purpose of the method is to detect whether the contents of VOCs, non-methane total hydrocarbons and the like in the exhaust gas exceed the standards.
Generally, it is necessary to sample the exhaust gas in the flue, store the gas sample in a gas bag, and then bring the gas sample back to the laboratory for specific detection and analysis by using a corresponding instrument or equipment. At present, a common gas production device comprises an air bag, an air suction pump, a pipeline and the like, wherein the air suction pump and the pipeline are connected between the air bag and a flue.
When the gas production device is used for gas production operation, oil stains are inevitably generated when the gas pump works, the collected gas sample is polluted, and the subsequent detection precision and accuracy are influenced. In addition, because of the influence of factors such as the time period and the discharge amount of actual production, the content of the waste gas in the flue often has great uncertainty, and a gas sample acquired by the one-time gas acquisition mode often cannot accurately reflect the actual content of the waste gas in the flue, so that the subsequent detection precision and accuracy are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and shortcomings of the prior art, and provides a negative pressure gas sampling barrel, in the sampling process, an air pump does not contact with a gas sample, and pollutants such as oil stain and the like cannot be mixed into the gas sample, so that the pollution to the collected gas sample is avoided; and the gas sample is replaced for many times, and the gas sample capable of truly reflecting the content of the waste gas in the flue can be obtained through one-time gas production operation so as to ensure the subsequent detection precision and accuracy.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a negative pressure gas production bucket, including staving, fixed connection the casing and the air pocket of staving bottom, its characterized in that: an end cover is buckled at the upper port of the barrel body, a through hole communicated with the interior of the barrel body is formed in the end cover, a sleeve is fixed in the through hole, the air bag is arranged in the barrel body, and the upper end of the air bag is inserted in the sleeve and connected with an outlet pipe extending out of the sleeve; the bottom of the barrel body is provided with a first air inlet/outlet, one side of the shell is provided with a second air inlet/outlet, an air pump capable of pumping air and inflating air is arranged inside the shell, and the air pump is respectively connected with the first air inlet/outlet and the second air inlet/outlet.
Furthermore, the inside of staving is provided with can for the air pump provides the rechargeable battery of working power supply, be provided with on the outer wall of staving with the interface that charges that rechargeable battery electricity is connected.
Furthermore, two hoops which are arranged up and down are respectively fixed on the outer wall of the barrel body, and a strap is connected between the two hoops.
Furthermore, an operation panel is fixedly connected to the outer wall of the casing, and a start button for controlling the operation of the air pump, a first knob switch for switching the air pump to pump air or inflate and a second knob switch for adjusting the flow of the air pump are mounted on the operation panel.
Furthermore, a plurality of supporting legs are fixedly connected to the periphery of the bottom of the shell respectively.
Furthermore, the end cover is provided with a vent hole communicated with the interior of the barrel body, and a vent valve is arranged in the vent hole.
Furthermore, a filter screen is arranged in the second air inlet/outlet.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses the air pump that adopts has two kinds of mode of bleeding and aerify, can carry out arbitrary switching, when switching into the mode of bleeding, the inside of staving forms the negative pressure, and the air pocket takes place to expand in the inside of staving, and the waste gas in the flue flows into the air pocket naturally, realizes the sampling to waste gas, and the air pump does not produce any contact with gas sample in the sampling process, can not sneak into pollutants such as greasy dirt in the gas sample, and then can not cause the pollution to the gas sample of gathering, thereby can not influence subsequent detection precision and degree of accuracy; when the gas filling mode is switched, the internal air pressure of the barrel body is recovered to be normal, the air bag shrinks in the barrel body, waste gas in the air bag flows back to the flue, the two working modes are switched circularly for multiple times, multiple replacement of the gas sample is realized, the gas sample capable of truly reflecting the content of the waste gas in the flue can be obtained through one-time gas production operation, and therefore subsequent detection precision and accuracy are guaranteed.
Drawings
Fig. 1 is a schematic diagram of the external structure of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a negative pressure gas production barrel comprises a barrel body 1, a shell 2 and a gas bag 3, wherein the shell 2 is fixedly connected with the bottom of the barrel body 1, an end cover 4 is buckled at the upper port of the barrel body 1, a through hole communicated with the interior of the barrel body 1 is formed in the end cover 4, a sleeve 5 is fixed in the through hole, the gas bag 3 is arranged in the barrel body 1, and the upper end of the gas bag 4 is inserted into the sleeve 5 and is connected with a leading-out pipe 6 extending out of the sleeve 5; the bottom of the barrel body 1 is provided with a first air inlet/outlet 7, one side of the shell 2 is provided with a second air inlet/outlet 8, an air pump 9 capable of pumping air and inflating air is arranged inside the shell 2, and the air pump 9 is respectively connected with the first air inlet/outlet 7 and the second air inlet/outlet 8.
The utility model discloses in, the inside of staving 1 is provided with the rechargeable battery 10 that can provide working power supply for air pump 9, is provided with the interface 11 that charges of being connected with rechargeable battery 10 electricity on the outer wall of staving 1. Therefore, an external power supply is not needed, the rechargeable battery 10 can be charged at any time through the charging interface 11, and the field use is greatly facilitated.
The utility model discloses in, be fixed with two clamps 12 that are upper and lower setting on the outer wall of staving 1 respectively, be connected with braces 13 between two clamps 12. Therefore, the portable medical infusion bag is convenient to carry and use.
The utility model discloses in, fixedly connected with operating panel 14 on the outer wall of casing 2, operating panel 14 is last to install start button 15, the second knob switch 17 that is used for switching air pump 9 and draws air or gas filled first knob switch 16 and is used for adjusting the flow size of air pump 9 that is used for controlling the work of air pump 9. Therefore, the air pump 9 is convenient to control, and the random switching between the air pumping working mode and the air inflation working mode is realized.
The utility model discloses in, 2 bottom of casing all around respectively fixedly connected with a plurality of supporting legs 18. Therefore, the whole negative pressure gas production barrel is convenient to place.
In the utility model, the end cover 4 is provided with a vent hole 19 communicated with the inside of the barrel body 1, and a vent valve 20 is arranged in the vent hole 19. Therefore, when negative pressure is formed in the barrel body 1, the vent valve 20 can be opened manually, which is beneficial to opening the end cover 4 and installing or taking the air bag 3.
The utility model discloses in, be provided with filter screen 21 in the second advances/gas outlet 8. Therefore, the air entering the air pump 9 can be filtered, and blockage is avoided.
The invention is further described below with reference to the accompanying drawings:
when the air bag type air bag is used, the end cover 4 is opened, the empty (contracted) air bag 3 is inserted into the sleeve 5 from the lower part of the end cover 4, the eduction tube 6 extends out of the sleeve 5, then the end cover 4 is covered, and the empty (contracted) air bag 3 is positioned in the barrel body 1.
Then, the outlet pipe 6 is connected with the flue through a pipeline, the first knob switch 16 is rotated to a gear of an air extraction working mode, the start button 15 is pressed, the air pump 9 works to extract air in the barrel body 1, negative pressure is gradually formed in the barrel body 1, the air bag 3 expands in the barrel body 1, and waste gas in the flue naturally flows into the air bag 3 to realize sampling of the waste gas.
Then, the first knob switch 16 is rotated to the gear of the inflation working mode, air is filled into the barrel body 1, the internal air pressure of the barrel body 1 is recovered to be normal, the air bag 3 contracts in the barrel body 1, waste gas in the air bag 3 flows back to the flue, the two working modes are switched circularly for multiple times, the gas sample in the air bag 3 is replaced for multiple times, and finally, the air bag 3 is rich in the required gas sample and is shut down.
Finally, the vent valve 20 is opened manually to restore the internal air pressure of the barrel body 1 to a normal state, the end cover 4 is opened again, the air bag 3 rich in the required gas sample (expansion) is pulled out, and the air bag is sent back to the laboratory for specific detection and analysis.
It should be noted that, in the gas production process, the flow of the air pump 9 is adjusted by roughly judging the content of the exhaust gas in the flue and rotating the second knob switch 17, so as to achieve the purpose of controlling the time required by the sampling operation on the basis of ensuring the sampling effect, thereby saving the time as much as possible and improving the efficiency.
Furthermore, the utility model discloses can also install the display screen that can show rechargeable battery 10 electric quantity on operating panel 14 to better person of facilitating the use understands and masters rechargeable battery 10's real-time electric quantity, thereby facilitate the use.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.
Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (7)
1. The utility model provides a negative pressure gas production bucket, including staving, fixed connection the casing and the air pocket of staving bottom, its characterized in that: an end cover is buckled at the upper port of the barrel body, a through hole communicated with the interior of the barrel body is formed in the end cover, a sleeve is fixed in the through hole, the air bag is arranged in the barrel body, and the upper end of the air bag is inserted in the sleeve and connected with an outlet pipe extending out of the sleeve; the bottom of the barrel body is provided with a first air inlet/outlet, one side of the shell is provided with a second air inlet/outlet, an air pump capable of pumping air and inflating air is arranged inside the shell, and the air pump is respectively connected with the first air inlet/outlet and the second air inlet/outlet.
2. The negative pressure gas production barrel of claim 1, wherein: the inner part of the barrel body is provided with a rechargeable battery which can provide a working power supply for the air pump, and the outer wall of the barrel body is provided with a charging interface which is electrically connected with the rechargeable battery.
3. The negative pressure gas production barrel of claim 1, wherein: the outer wall of the barrel body is respectively fixed with two hoops which are arranged up and down, and a strap is connected between the two hoops.
4. The negative pressure gas production barrel of claim 1, wherein: the air pump is characterized in that an operation panel is fixedly connected to the outer wall of the shell, and a starting button for controlling the air pump to work, a first knob switch for switching the air pump to pump or inflate and a second knob switch for adjusting the flow of the air pump are mounted on the operation panel.
5. The negative pressure gas production barrel of claim 1, wherein: the periphery of the bottom of the shell is fixedly connected with a plurality of supporting legs respectively.
6. The negative pressure gas production barrel of claim 1, wherein: the end cover is provided with a vent hole communicated with the interior of the barrel body, and a vent valve is arranged in the vent hole.
7. The negative pressure gas production barrel of claim 1, wherein: and a filter screen is arranged in the second air inlet/outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120991436.7U CN214894365U (en) | 2021-05-11 | 2021-05-11 | Negative pressure gas production barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120991436.7U CN214894365U (en) | 2021-05-11 | 2021-05-11 | Negative pressure gas production barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214894365U true CN214894365U (en) | 2021-11-26 |
Family
ID=78946779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120991436.7U Active CN214894365U (en) | 2021-05-11 | 2021-05-11 | Negative pressure gas production barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214894365U (en) |
-
2021
- 2021-05-11 CN CN202120991436.7U patent/CN214894365U/en active Active
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