CN217466397U - Water circle device is collected to total nitrogen digestion tail gas - Google Patents
Water circle device is collected to total nitrogen digestion tail gas Download PDFInfo
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- CN217466397U CN217466397U CN202220851265.2U CN202220851265U CN217466397U CN 217466397 U CN217466397 U CN 217466397U CN 202220851265 U CN202220851265 U CN 202220851265U CN 217466397 U CN217466397 U CN 217466397U
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Abstract
The utility model provides a total nitrogen digestion tail gas collecting and water circulating device, wherein the bottom surface of an upper reservoir of the device is higher than a tail gas guiding device, and the tail gas guiding device is higher than the top surface of a lower reservoir; the digestion tube is arranged on the digestion furnace, the tail gas guiding device comprises a collecting cavity and a plurality of rubber plugs arranged below the collecting cavity, the rubber plugs can be clamped on the opening of the digestion tube, and the digestion tube is communicated with the collecting cavity through holes on the rubber plugs; the bottom outlet of the upper reservoir is communicated with the inlet of the lower reservoir through a first hose, and the bottom outlet of the lower reservoir is communicated with the inlet of the upper reservoir through a second hose; the first hose is provided with a first instantaneous flowmeter and a valve, and the second hose is provided with a second instantaneous flowmeter and a vacuum pump; the tail gas guiding device is communicated with the middle of the first hose through a third hose, and the third hose and the first hose close to the lower reservoir form an obtuse angle connection mode. The utility model discloses water circle device is collected to total nitrogen digestion tail gas when satisfying the detection demand, can also effectively reduce the waste of water resource.
Description
Technical Field
The utility model relates to a total nitrogen digestion technique especially relates to a water circle device is collected to total nitrogen digestion tail gas.
Background
The total nitrogen is a general term of nitrogen contained in various nitrogen-containing compounds in tobacco leaves, such as protein, amino acid, nicotine, volatile alkali, chlorophyll and the like, and the nitrogen in the tobacco leaves directly influences the smoking quality and sensory evaluation quality of cigarette products, so that the rapid and accurate method for determining the total nitrogen content is always a research hotspot in the tobacco and tobacco product industry.
Tail gas generated in the total nitrogen digestion process can be directly taken away through flowing water with a certain flow velocity, so that the tail gas is prevented from overflowing, and the harm to the environment is reduced. The continuous running water realizes the accuracy of the detection result and reduces the pollution of harmful gas to the air of the test environment, but causes great waste of water resources.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a water circle device is collected to total nitrogen digestion tail gas to the problem of the very big waste of water resource to present total nitrogen digestion in-process tail gas treatment method, the device can also effectively reduce the waste of water resource when satisfying the detection demand.
In order to achieve the above object, the utility model adopts the following technical scheme: a total nitrogen digestion tail gas collection water circulation device comprises an upper reservoir, a lower reservoir, a first instantaneous flow meter, a second instantaneous flow meter, a hose, a vacuum pump, a tail gas guiding device, a digestion furnace, a digestion pipe and a valve, wherein the bottom surface of the upper reservoir is higher than the tail gas guiding device, and the tail gas guiding device is higher than the top surface of the lower reservoir; the digestion tube is arranged on the digestion furnace, the tail gas guiding device comprises a collecting cavity and a plurality of rubber plugs 9 arranged below the collecting cavity, the rubber plugs can be clamped on the openings of the digestion tube, the rubber plugs can seal the digestion tube, holes are formed in the rubber plugs, and the digestion tube is communicated with the collecting cavity through the holes formed in the rubber plugs;
the bottom outlet of the upper reservoir is communicated with the inlet of the lower reservoir through a first hose, and the bottom outlet of the lower reservoir is communicated with the inlet of the upper reservoir through a second hose; the first hose is provided with a first instantaneous flowmeter and a valve, and the second hose is provided with a second instantaneous flowmeter and a vacuum pump; the tail gas guiding device is communicated with the middle of the first hose through a third hose, and the third hose and the first hose close to the lower reservoir form an obtuse angle connection mode.
Further, the valve is arranged at one end of the first hose close to the upper reservoir.
Further, the valve is a twist valve.
Further, the first instantaneous flowmeter is arranged at one end, close to the upper water reservoir, of the first hose, so that interference of tail gas to the flowmeter is reduced.
Further, the height difference between the bottom surface of the upper reservoir and the top surface of the lower reservoir is 1.40-1.55 m.
The utility model discloses water circle device is collected to total nitrogen digestion tail gas's theory of operation: weighing a sample to be tested in a digestion tube 7, placing the digestion tube on a digestion furnace 6, clamping a rubber plug of the tail gas guiding device on the digestion tube opposite to the mouth of the digestion tube to form a closed environment. The twist valve is opened, water in the upper reservoir 11 flows into the lower reservoir 12 through the first hose, and a negative pressure environment is formed in a third hose communicated with the first hose; then starting the digestion furnace 6, collecting tail gas generated in the total nitrogen digestion process in the digestion pipe 7 into a collecting cavity of the tail gas guiding device 5 through a rubber plug, and enabling the tail gas to sequentially pass through the collecting cavity, a third hose and a first hose to enter a lower reservoir 12; the vacuum pump 4 is turned on and the water from the lower reservoir 12 is transferred to the upper reservoir 11. In the operation of the total nitrogen digestion tail gas collection water circulation device, the flow rate of the second instantaneous flow meter 22 is slightly larger than that of the first instantaneous flow meter 21, so that the water circulation is realized.
The utility model discloses water circle device is collected to total nitrogen digestion tail gas, simple structure, reasonable, compact, the utility model discloses a tail gas is taken away to rivers, satisfies total nitrogen digestion and detects exhaust emission demand, and the circulating water circulates between last cistern and lower cistern simultaneously, can also effectively reduce the waste of water resource.
Drawings
FIG. 1 is a schematic structural diagram of a total nitrogen digestion tail gas collection water circulation device;
fig. 2 is a schematic structural diagram of the tail gas discharge device.
Detailed Description
The invention is further illustrated below with reference to the following examples:
example 1
As shown in fig. 1 and 2, the total nitrogen digestion tail gas collection water circulation device comprises an upper water reservoir 11, a lower water reservoir 12, a first instantaneous flow meter 21, a second instantaneous flow meter 22, a vacuum pump 4, a tail gas guiding device 5, a digestion furnace 6, a digestion pipe 7 and a valve, wherein the bottom surface of the upper water reservoir 11 is higher than the tail gas guiding device 5, and the tail gas guiding device 5 is higher than the top surface of the lower water reservoir 12; the height difference between the bottom surface of the upper reservoir 11 and the top surface of the lower reservoir 12 is 1.40-1.55 m. The upper reservoir holds 10-30L of tap water. The inner bore diameter of the 3 hoses is 65-80 mm. The digestion tube 7 is arranged on the digestion furnace 6, the tail gas guiding device 5 comprises a collecting cavity, a plurality of rubber plugs matched with the digestion tube 7 are fixed below the collecting cavity, namely the rubber plugs can be clamped on the opening of the digestion tube 7, and the rubber plugs can seal the digestion tube 7. The rubber plug is provided with a hole, and the digestion tube 7 is communicated with the collection cavity through the hole on the rubber plug.
The bottom outlet of the upper reservoir 11 is communicated with the inlet of the lower reservoir 12 through a first hose 31, and the bottom outlet of the lower reservoir 12 is communicated with the inlet of the upper reservoir 11 through a second hose 32; a first instantaneous flowmeter 21 and a valve are arranged at one end of the first hose close to the upper reservoir 11, and the valve is a twist valve 8. The second hose 32 is provided with a second instantaneous flow meter 22 and a vacuum pump 4; the exhaust gas guiding device 5 is communicated with the middle part of the first hose 31 through a third hose 33, and the third hose 31 is connected with the first hose 31 close to the lower reservoir 12 in an obtuse angle mode.
The utility model discloses water circle device is collected to total nitrogen digestion tail gas's theory of operation: weighing a sample to be tested in a digestion tube, placing the sample on a digestion furnace, and clamping a rubber plug of the tail gas guiding device on the digestion tube opposite to the mouth of the digestion tube to form a closed environment. When the water is ready, the twist valve is turned on, the water in the upper reservoir 11 flows into the lower reservoir 12 through the first hose, and a negative pressure environment is formed in a third hose communicated with the first hose; then starting the digestion furnace 6, collecting tail gas generated in the total nitrogen digestion process in the digestion pipe 7 into a collecting cavity of the tail gas guiding device 5 through a rubber plug, and enabling the tail gas to sequentially pass through the collecting cavity, a third hose and a first hose to enter a lower reservoir 12; the vacuum pump 4 is turned on and the water from the lower reservoir 12 is transferred to the upper reservoir 11. In the working process of the total nitrogen digestion tail gas collecting and water circulating device, the flow rate of the first instantaneous flow meter 21 is 0.50-0.55m/s, and the flow rate of the second instantaneous flow meter 22 is slightly larger than the flow rate of the flow meter 21, so that water circulation is achieved.
The water circulating device is collected to total nitrogen digestion tail gas of this embodiment can directly take away the tail gas accessible certain velocity of flow that produces in the total nitrogen digestion process, avoids tail gas to spill over, reduces the harm to the environment. Meanwhile, circulating water circulates between the upper water storage tank 11 and the lower water storage tank 12, so that waste of water resources can be effectively reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. The total nitrogen digestion tail gas collection water circulation device is characterized by comprising an upper water storage tank (11), a lower water storage tank (12), a first instantaneous flow meter (21), a second instantaneous flow meter (22), a vacuum pump (4), a tail gas guiding device (5), a digestion furnace (6), a digestion pipe (7) and a valve, wherein the bottom surface of the upper water storage tank (11) is higher than the tail gas guiding device (5), and the tail gas guiding device (5) is higher than the top surface of the lower water storage tank (12); the digestion tube (7) is arranged on the digestion furnace (6), the tail gas guiding device (5) comprises a collecting cavity and a plurality of rubber plugs (9) arranged below the collecting cavity, the rubber plugs (9) can be clamped on openings of the digestion tube (7), holes are formed in the rubber plugs, and the digestion tube (7) is communicated with the collecting cavity through the holes formed in the rubber plugs;
the bottom outlet of the upper reservoir (11) is communicated with the inlet of the lower reservoir (12) through a first hose (31), and the bottom outlet of the lower reservoir (12) is communicated with the inlet of the upper reservoir (11) through a second hose (32); the first hose is provided with a first instantaneous flow meter (21) and a valve, and the second hose is provided with a second instantaneous flow meter (22) and a vacuum pump (4); the tail gas guiding device (5) is communicated with the middle of the first hose (31) through a third hose (33), and the third hose (33) is connected with the first hose (31) close to the lower water storage tank (12) in an obtuse angle mode.
2. The total nitrogen digestion tail gas collection water circulation device according to claim 1, wherein the valve is disposed at an end of the first hose near the upper reservoir (11).
3. The total nitrogen digestion off-gas collection water circulation device according to claim 1 or 2, characterized in that the valve is a twist valve (8).
4. The total nitrogen digestion tail gas collection water circulation device according to claim 1, characterized in that the first instantaneous flow meter (21) is disposed at one end of the first hose near the upper reservoir (11).
5. The total nitrogen digestion tail gas collection water circulation device according to claim 1, characterized in that the height difference between the bottom surface of the upper reservoir (11) and the top surface of the lower reservoir (12) is 1.40-1.55 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220851265.2U CN217466397U (en) | 2022-04-14 | 2022-04-14 | Water circle device is collected to total nitrogen digestion tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220851265.2U CN217466397U (en) | 2022-04-14 | 2022-04-14 | Water circle device is collected to total nitrogen digestion tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217466397U true CN217466397U (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220851265.2U Active CN217466397U (en) | 2022-04-14 | 2022-04-14 | Water circle device is collected to total nitrogen digestion tail gas |
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| Country | Link |
|---|---|
| CN (1) | CN217466397U (en) |
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2022
- 2022-04-14 CN CN202220851265.2U patent/CN217466397U/en active Active
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