CN211477780U - A sampling device for analyzing essence pyrolysis gas - Google Patents
A sampling device for analyzing essence pyrolysis gas Download PDFInfo
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- CN211477780U CN211477780U CN202020117942.9U CN202020117942U CN211477780U CN 211477780 U CN211477780 U CN 211477780U CN 202020117942 U CN202020117942 U CN 202020117942U CN 211477780 U CN211477780 U CN 211477780U
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Abstract
The utility model provides a sampling device for analyzing essence pyrolysis gas relates to tobacco development technical field, including the access head that connects gradually, three lead to portions, entrapment portion and extraction portion, the one end that three lead to portions were kept away from to the access head is connected with the thermogravimetric analyzer, be provided with the first hole of being connected with the access head in the three lead to portion, the second hole of being connected with the air pump and the third hole of being connected with entrapment portion, entrapment portion is provided with the intake pipe that is used for with third jogged joint and the outlet duct of being connected with extraction portion, and the outlet duct tip is provided with the thief hole, and extraction portion has at least partly to be located the thief hole. The utility model relates to a sampling device for analyzing essence pyrolysis gas simple structure, the current thermal gravimetric analytical instrument of make full use of changes less to instrument and equipment, and the change is with low costs, and adopts the mode that solvent entrapment and solid phase micro-extraction entrapment combined together, can realize effective entrapment and analysis to essence pyrolysis gas.
Description
Technical Field
The utility model relates to the technical field of tobacco development,
especially, the utility model relates to a sampling device for analyzing essence pyrolysis gas.
Background
In the cigarette production process, a plurality of flavors and fragrances are needed, when the cigarette is burnt, some flavors and fragrances are directly transferred into the cigarette smoke, and some flavors and fragrances enter the smoke in the form of pyrolysis products after undergoing reactions such as pyrolysis, degradation and the like, or the pyrolysis products and other components in the smoke are subjected to complex chemical reactions again. Therefore, the research on the pyrolysis behavior of the tobacco essence is very important for evaluating the effect and safety of the tobacco essence.
At present, for the evaluation of the tobacco essence, a thermal cracking technology is mainly adopted, and the relationship between a cracking product and a sample in composition, structure and physical and chemical properties, a cracking mechanism and reaction kinetics are researched through qualitative and quantitative analysis of the cracking product, so that the method is an important means for researching the cracking process of the tobacco essence at present. The thermogravimetric analysis method is an analysis technology for measuring the change of the mass of a substance along with the temperature under the condition of program temperature control, has the advantages of simple and quick operation of an instrument, high accuracy and sensitivity and the like, is widely applied to the fields of inorganic, organic, food and the like, and in recent years, the research of a thermogravimetric analyzer in the field of tobacco combustion has achieved certain results. CN102042940A discloses a gradient cracking method for studying the cracking process of compounds. CN102042992A discloses a thermal analyzer and a flow carrier gas-single drop micro-extraction combined device and a using method thereof. CN102507270A discloses a thermogravimetric analyzer and cambridge filter-absorption bottle combination device and a method for trapping escaping gas, wherein the cambridge filter is used for trapping particulate matters in smoke, and the absorption bottle is used for trapping volatile components in the smoke.
However, the pyrolysis gas collecting device of the conventional thermo-gravimetric analysis instrument has low efficiency and poor pyrolysis gas trapping effect, and the conventional thermo-gravimetric analysis instrument needs to be greatly changed in structure, so that the cost is high.
Therefore, in order to solve the above problems, it is necessary to design a reasonable sampling device for analyzing the pyrolysis gas of the essence.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, the current thermal gravimetric analytical instrument of make full use of changes lessly to instrument and equipment, changes with low costs, and adopts the mode that solvent entrapment and solid phase micro-extraction entrapment combined together, can realize being used for the gaseous sampling device of analysis essence pyrolysis to the gaseous effective entrapment of essence pyrolysis and analysis.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a sampling device for analyzing essence pyrolysis gas, includes access head, three expert portions, entrapment portion and the extraction portion that connects gradually, the access head is kept away from the one end and the thermogravimetric analyzer of three expert portions are connected, be provided with in the three expert with the first hole that the access head is connected, the second hole of being connected with the air pump and the third hole of being connected with entrapment portion, entrapment portion be provided with be used for with the intake pipe that the third hole is connected and with the outlet duct that extraction portion is connected, the outlet duct tip is provided with the thief hole, extraction portion has at least partly to be located in the thief hole.
As a preferred aspect of the present invention, the access head is connected to the first hole and the third hole is connected to the intake pipe through a transmission pipe.
As the utility model discloses a preferred, be provided with the heater in the access head.
Preferably, the transmission pipe is provided with a heat preservation protective layer outside. In fact, the transmission pipe is a stainless steel pipe coated with a heat-insulating protective layer, and the heat-insulating protective layer is an insulating piece.
Preferably, a heating element is arranged in the transmission pipe. Here, the heating element is disposed between the stainless steel tube and the thermal protective layer.
As the utility model discloses a preferred, the access point lower extreme is provided with and is used for supporting the supporting seat of access point.
As the utility model discloses a preferred, the supporting seat include the bottom plate, with the first screw rod that the bottom plate is connected, with the second screw rod that the access head is connected and be used for connecting the wrong ring of first screw rod and second screw rod, the first screw rod and the second screw rod outside all are provided with the external screw thread, wrong ring inside is provided with the internal thread.
Preferably, the first screw and the second screw have external threads in opposite directions.
As the utility model discloses a preferred, be provided with on the bottom plate and be used for fixing the fixing bolt of bottom plate.
As a preferred aspect of the present invention, the number of the fixing bolts is at least one.
As a preferred aspect of the present invention, a heating chamber is disposed outside the three-way portion.
Preferably, the collection unit is a solvent collection device, and the extraction unit is a solid phase micro-extraction device.
The utility model relates to a sampling device for analyzing essence pyrolysis gas beneficial effect lies in: simple structure, the current thermogravimetric analysis instrument of make full use of changes less to instrument and equipment, changes with low costsly, and adopts the mode that solvent entrapment and solid phase micro-extraction entrapment combined together, can realize effective entrapment and analysis to essence pyrolysis gas.
Drawings
Fig. 1 is a schematic structural diagram of a sampling device for analyzing essence pyrolysis gas according to the present invention;
fig. 2 is a schematic connection diagram of a supporting seat of a sampling device for analyzing essence pyrolysis gas according to the present invention;
FIG. 3 is a schematic cross-sectional view of a transmission pipe of an embodiment of a sampling device for analyzing essence pyrolysis gas of the present invention
In the figure: 1. the device comprises an access head, 2, a tee joint part, 21, a first hole, 22, a second hole, 23, a third hole, 24, a heating cavity, 3, a trapping part, 31, an air inlet pipe, 32, an air outlet pipe, 33, a sampling hole, 4, an extraction part, 5, an air pump, 6, a transmission pipe, 61, a heat preservation protective layer, 62, a heating element, 7, a supporting seat, 71, a bottom plate, 711, a fixing bolt, 72, a first screw rod, 73, a second screw rod, 74, a screwing ring, 75 and an external thread.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
The pyrolysis gas collecting device of the existing thermogravimetric analyzer has low efficiency and poor collection effect of pyrolysis gas, needs to change the structure of the existing thermogravimetric analyzer in a large amount, and has high cost.
The first embodiment is as follows: as shown in fig. 1 to 3, it is only an embodiment of the utility model discloses a sampling device for analyzing essence pyrolysis gas, including access head 1, tee bend portion 2, entrapment portion 3 and the extraction portion 4 that connect gradually, access head 1 keeps away from the one end of tee bend portion 2 is connected with the thermogravimetric analyzer, be provided with in the tee bend portion 2 with first hole 21 that access head 1 is connected, the second hole 22 of being connected with air pump 5 and the third hole 23 of being connected with entrapment portion 3, entrapment portion 3 be provided with be used for with the intake pipe 31 that third hole 23 is connected and with the outlet duct 32 that extraction portion 4 is connected, outlet duct 32 tip is provided with the thief hole 33, extraction portion 4 has at least a part to be located in thief hole 33.
The utility model discloses in, the pyrolysis gas that thermogravimetric analyzer's gas outlet came out flows to tee bend portion 2 through access head 1, then catches and the analysis through entrapment portion 3 and extraction portion 4.
Generally, in order to ensure the purity of the gas trapped at each time, before the gas is introduced into the connector 1, the gas in the tee part 2 and the whole pipeline is pumped by the gas pump 5, the gas tested before is pumped out, then the pyrolysis gas is introduced, enters the tee part 2 from the first hole 21 and enters the trap part 3 from the third hole 23 for trapping.
In order to prevent the pyrolysis gas from being condensed and unable to be collected, the temperature of the pyrolysis gas in the whole device needs to be guaranteed, then the access head 1 and the first hole 21 and the third hole 23 and the air inlet pipe 31 are connected through a transmission pipe 6, a heat preservation protective layer 61 is arranged outside the transmission pipe 6, a heater is arranged in the access head 1, and a heating cavity 24 is arranged outside the tee joint part 2.
Finally, the trap 3 is a solvent trap, and the extraction section 4 is a solid phase microextraction device. The effective capture and analysis of the essence pyrolysis gas can be realized.
The utility model relates to a sampling device for analyzing essence pyrolysis gas simple structure, the current thermal gravimetric analytical instrument of make full use of changes less to instrument and equipment, and the change is with low costs, and adopts the mode that solvent entrapment and solid phase micro-extraction entrapment combined together, can realize effective entrapment and analysis to essence pyrolysis gas.
Embodiment two, still as shown in fig. 1 to 3, only be the utility model discloses a one of them embodiment, in order to make the utility model relates to a collection effect is better for analyzing gaseous sampling device of essence pyrolysis, and stability is higher, the utility model discloses in still have following design:
first, the transmission pipe 6 is a stainless steel pipe, and actually, the transmission pipe 6 is a stainless steel pipe covered with the heat-insulating sheath 61, and the heat-insulating sheath 61 is an insulating member.
Also, a heating member 62 is provided in the transfer pipe 6, where the heating member is provided between the stainless steel pipe and the heat-insulating sheath 61.
It should be noted that the thermal protective layer 61 and the heating member 62 can be disposed either or both of them.
Then, the lower end of the access head 1 is provided with a supporting seat 7 for supporting the access head 1. The connection stability of the access head 1 and the gas outlet of the thermogravimetric analyzer is ensured.
Here, the support base 7 includes a bottom plate 71, a first screw 72 connected to the bottom plate 71, a second screw 73 connected to the coupling head 1, and a screw ring 74 for connecting the first screw 72 and the second screw 73, wherein both outer sides of the first screw 72 and the second screw 73 are provided with external threads 75, and inner sides of the screw ring 74 are provided with internal threads.
The internal threads match the external threads 75 and at least a portion of each of the first and second screws 72, 73 is positioned within the threaded ring 74 such that each of the first and second screws 72, 73 is threadably engaged with the threaded ring 74.
It is important to note that the first screw 72 is in the opposite direction to the external thread 75 on the outside of the second screw 73. When the screwing ring 74 is screwed, the screwing directions of the first screw 72 and the second screw 73 are opposite, so that the distance between the first screw 72 and the second screw 73 can be adjusted, and the height of the access head 1 can be adjusted, wherein the screwing ring 74 is hexagonal in cross section, and the outer side of the cross section is convenient to screw.
Finally, the bottom plate 71 is provided with a fixing bolt 711 for fixing the bottom plate 71, and the number of the fixing bolts 711 is at least one, so that the stability of the bottom plate 71 is ensured.
The utility model relates to a sampling device for analyzing essence pyrolysis gas simple structure, the current thermal gravimetric analytical instrument of make full use of changes less to instrument and equipment, and the change is with low costs, and adopts the mode that solvent entrapment and solid phase micro-extraction entrapment combined together, can realize effective entrapment and analysis to essence pyrolysis gas.
The present invention is not limited to the above-described specific embodiments, and various modifications and changes are possible. Any modification, equivalent replacement, improvement and the like made to the above embodiments according to the technical spirit of the present invention should be included in the scope of protection of the present invention.
Claims (10)
1. The utility model provides a sampling device for analyzing essence pyrolysis gas which characterized in that: including access head (1), tee bend portion (2), entrapment portion (3) and the extraction portion (4) that connect gradually, access head (1) is kept away from the one end and the thermogravimetric analyzer of tee bend portion (2) are connected, be provided with in tee bend portion (2) with first hole (21) that access head (1) is connected, second hole (22) be connected with air pump (5) and third hole (23) be connected with entrapment portion (3), entrapment portion (3) be provided with be used for with intake pipe (31) that third hole (23) are connected and with outlet duct (32) that extraction portion (4) are connected, outlet duct (32) tip is provided with thief hole (33), extraction portion (4) have at least partly to be located in thief hole (33).
2. A sampling device for analysis of a perfume pyrolysis gas according to claim 1, wherein: the access head (1) and the first hole (21) and the third hole (23) and the air inlet pipe (31) are connected through a transmission pipe (6).
3. A sampling device for analysis of a perfume pyrolysis gas according to claim 2, wherein: and a heat-insulating protective layer (61) is arranged on the outer side of the transmission pipe (6).
4. A sampling device for analysis of a perfume pyrolysis gas according to claim 2, wherein: a heating element (62) is arranged in the conveying pipe (6).
5. A sampling device for analysis of a perfume pyrolysis gas according to claim 1, wherein: the lower end of the access head (1) is provided with a supporting seat (7) for supporting the access head (1).
6. A sampling device for analysis of flavour pyrolysis gas according to claim 5, characterised in that: the supporting seat (7) comprises a bottom plate (71), a first screw (72) connected with the bottom plate (71), a second screw (73) connected with the connecting head (1) and a screwing ring (74) used for connecting the first screw (72) and the second screw (73), external threads (75) are arranged on the outer sides of the first screw (72) and the second screw (73), and internal threads are arranged on the inner side of the screwing ring (74).
7. A sampling device for analysis of flavour pyrolysis gas according to claim 6, characterised in that: the first screw (72) and the external thread (75) on the outer side of the second screw (73) are opposite in direction.
8. A sampling device for analysis of flavour pyrolysis gas according to claim 6, characterised in that: the bottom plate (71) is provided with a fixing bolt (711) for fixing the bottom plate (71).
9. A sampling device for analysis of a perfume pyrolysis gas according to claim 8, wherein: the number of the fixing bolts (711) is at least one.
10. A sampling device for analysis of a perfume pyrolysis gas according to claim 1, wherein: a heating cavity (24) is arranged outside the tee joint part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020117942.9U CN211477780U (en) | 2020-01-19 | 2020-01-19 | A sampling device for analyzing essence pyrolysis gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020117942.9U CN211477780U (en) | 2020-01-19 | 2020-01-19 | A sampling device for analyzing essence pyrolysis gas |
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| Publication Number | Publication Date |
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| CN211477780U true CN211477780U (en) | 2020-09-11 |
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| CN202020117942.9U Active CN211477780U (en) | 2020-01-19 | 2020-01-19 | A sampling device for analyzing essence pyrolysis gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618187A (en) * | 2022-02-28 | 2022-06-14 | 海南红塔卷烟有限责任公司 | Micro-bottle extraction device and method for thermogravimetric escaping substance analysis |
-
2020
- 2020-01-19 CN CN202020117942.9U patent/CN211477780U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618187A (en) * | 2022-02-28 | 2022-06-14 | 海南红塔卷烟有限责任公司 | Micro-bottle extraction device and method for thermogravimetric escaping substance analysis |
| CN114618187B (en) * | 2022-02-28 | 2024-03-22 | 海南红塔卷烟有限责任公司 | Micro-bottle extraction device and method for thermogravimetric escaped matter analysis |
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