CN219977915U - Sample pretreatment device for detecting aroma components in grease - Google Patents
Sample pretreatment device for detecting aroma components in grease Download PDFInfo
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- CN219977915U CN219977915U CN202320903662.4U CN202320903662U CN219977915U CN 219977915 U CN219977915 U CN 219977915U CN 202320903662 U CN202320903662 U CN 202320903662U CN 219977915 U CN219977915 U CN 219977915U
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- pipe
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- extraction
- outflow pipe
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- 239000004519 grease Substances 0.000 title claims abstract description 9
- 238000000605 extraction Methods 0.000 claims abstract description 98
- 238000004821 distillation Methods 0.000 claims abstract description 53
- 238000001816 cooling Methods 0.000 claims abstract description 43
- 239000003921 oil Substances 0.000 claims description 14
- 239000003925 fat Substances 0.000 claims description 13
- 238000009833 condensation Methods 0.000 claims description 11
- 230000005494 condensation Effects 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 6
- 239000002356 single layer Substances 0.000 claims description 3
- 239000003205 fragrance Substances 0.000 claims 1
- 238000007781 pre-processing Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 238000009835 boiling Methods 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000006071 cream Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Abstract
The utility model discloses a sample pretreatment device for detecting aroma components in grease, and relates to the technical field of distillation extraction; comprises a distillation bottle, an extractor and a cooling bottle; the extractor comprises an extraction bottle and a connecting pipe, wherein openings are formed in the bottom and the top of the extraction bottle, the connecting pipe is connected to the bottom of the extraction bottle, the diameter of the connecting pipe is larger than the size of the opening in the bottom of the extraction bottle, and the opening in the bottom of the extraction bottle is positioned in the connecting range of the connecting pipe and the extraction bottle; the extraction bottle is also internally provided with a steam conduit with one end open, the open end of the steam conduit is communicated with the bottom opening of the extraction bottle, and the side wall of the other end of the steam conduit is provided with an air hole; the top and the bottom of the cooling bottle are both provided with openings, the opening at the bottom of the cooling bottle is communicated with the opening at the top of the extraction bottle, and a cooling assembly is arranged in the cooling bottle; the top of the distillation flask is provided with an opening, one end of the connecting pipe is connected with the bottom of the extraction flask, and the other end of the connecting pipe is connected with the opening of the distillation flask. Only one heat source is needed and the structure is simple.
Description
Technical Field
The utility model relates to the technical field of distillation extraction, in particular to a sample pretreatment device for detecting aroma components in grease.
Background
When analyzing the composition and the content of aroma components in grease, a simultaneous distillation and extraction device is often used, but the existing simultaneous distillation and extraction device has complex structure, relatively complex operation and large space occupation, and two heating sources are needed, so that the complexity of the process is increased, and the potential safety hazard is improved by the two heating sources.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides the sample pretreatment device for detecting the aroma components in the grease, which has small occupied space and only needs one heating source.
The technical scheme adopted for solving the technical problems is as follows: in a sample pretreatment apparatus for detecting aroma components in oils and fats, the improvement comprising: comprises a distillation bottle, an extractor and a cooling bottle;
the extractor comprises an extraction bottle and a connecting pipe, wherein openings are formed in the bottom and the top of the extraction bottle, the connecting pipe is connected to the bottom of the extraction bottle, the diameter of the connecting pipe is larger than the size of the opening in the bottom of the extraction bottle, and the opening in the bottom of the extraction bottle is positioned in the connecting range of the connecting pipe and the extraction bottle; the extraction bottle is internally provided with a steam conduit with one end open, the open end of the steam conduit is communicated with the bottom opening of the extraction bottle, and the side wall of the other end of the steam conduit is provided with an air hole;
the top and the bottom of the cooling bottle are both provided with openings, the opening at the bottom of the cooling bottle is communicated with the opening at the top of the extraction bottle, and a cooling assembly is arranged in the cooling bottle;
the top of the distillation flask is provided with an opening, one end of the connecting pipe is connected with the bottom of the extraction flask, and the other end of the connecting pipe is connected with the opening of the distillation flask.
In the above technical scheme, the cooling component is the condenser pipe, have in the cooling bottle and hold the chamber, the condenser pipe with hold the chamber intercommunication, the cooling bottle lateral wall is opened there is first connecting hole and second connecting hole, and first connecting hole and condenser pipe intercommunication, second connecting hole and hold the chamber intercommunication.
In the above technical solution, the second connecting hole is located above the first connecting hole.
In the above technical solution, the condensation tube is in a spiral shape.
The extractor in the above technical scheme further comprises a first outflow pipe, a second outflow pipe, a first piston, a second piston and a discharge pipe; one end of the first outflow pipe is communicated with the side wall of the extraction bottle, and the other end of the first outflow pipe is communicated with the distillation bottle; one end of the second outflow pipe is communicated with the bottom of the extraction bottle, the other end of the second outflow pipe is communicated with the first outflow pipe, a first piston is arranged at the communication part of the second outflow pipe and the first outflow pipe, and the conduction state of the first outflow pipe and the second outflow pipe is regulated and controlled through the first piston; one end of the discharge pipe is communicated with the bottom of the extraction bottle, and the second piston is arranged on the discharge pipe.
The extractor in the technical scheme further comprises a third outflow pipe, a third piston and a first return pipe; the third outflow pipe is communicated with the bottom of the extraction bottle, one end of the first return pipe is communicated with the third outflow pipe, the other end of the first return pipe is communicated with the distillation bottle, and the third piston is arranged at the communication position of the first return pipe and the third outflow pipe and used for regulating and controlling the conduction state of the third outflow pipe and the first return pipe.
The extractor in the technical scheme further comprises a fourth outflow pipe, a fourth piston and a second return pipe; the fourth outflow pipe is communicated with the extraction bottle at the bottom of the extraction bottle and extends into the extraction bottle, one end of the second return pipe is communicated with the fourth outflow pipe outside the extraction bottle, the other end of the second return pipe is communicated with the distillation bottle, and the fourth piston is arranged at the joint of the second return pipe and the fourth outflow pipe and used for regulating and controlling the conduction state of the fourth outflow pipe and the second return pipe.
The sample pretreatment device for detecting the aroma components in the grease further comprises an air guide plug, openings are formed in the bottom and the top of the air guide plug, the opening in the bottom of the air guide plug is communicated with the opening in the top of the cooling bottle, and the size of the opening in the top of the air guide plug is smaller than that of the opening in the bottom of the air guide plug.
In the technical scheme, the pipe wall of the steam pipe is a single layer.
In the technical scheme, the pipe wall of the steam pipe is double-layer.
The beneficial effects of the utility model are as follows: according to the utility model, the extraction bottle is arranged above the distillation bottle, and when the temperature in the extraction bottle needs to be increased, the distillation bottle is heated, so that the vapor in the distillation bottle rises to heat the extraction bottle, and only one heat source is needed, so that the volume and the structure of the distillation extraction device are greatly simplified.
Drawings
FIG. 1 is a schematic view showing the structure of a sample pretreatment apparatus for detecting aroma components in fats and oils according to an embodiment of the present utility model.
Fig. 2 is a schematic structural view of an extractor in a sample pretreatment apparatus for detecting aroma components in fats and oils according to a second embodiment of the present utility model.
Fig. 3 is a schematic structural view of an extractor in a sample pretreatment apparatus for detecting aroma components in fats and oils according to a third embodiment of the present utility model.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the utility model can be interactively combined on the premise of no contradiction and conflict.
Embodiment one: referring to fig. 1, as shown in the drawing, the present embodiment provides a sample pretreatment apparatus for detecting aroma components in fats and oils, comprising a distillation flask 1, an extractor, and a cooling flask 4.
The extractor includes extraction bottle 2 and connecting pipe 3, all open at extraction bottle 2 bottom and top, connecting pipe 3 are connected in extraction bottle 2 bottom, and the diameter of connecting pipe 3 is greater than extraction bottle 2 bottom open-ended size and the opening of extraction bottle 2 bottom is located the connecting range of connecting pipe 3 and extraction bottle 2, and when heating distillation bottle 1, steam accessible extraction bottle 2 bottom opening gets into extraction bottle 2 and can heat extraction bottle 2 bottom in connecting pipe 3, adopts a heat source to heat distillation bottle 1 can, need not to set up a plurality of heat sources and set up other parts that need connect the installation that a plurality of heat sources brought, makes whole device structure simplify. The extraction bottle 2 is also internally provided with a steam conduit 6 with one end open, the open end of the steam conduit 6 is communicated with the bottom opening of the extraction bottle 2, the side wall of the other end of the steam conduit 6 is provided with an air hole 7, after the distillation bottle 1 is heated, steam in the distillation bottle 1 and solvent steam in the extraction bottle 2 can be mixed alternately at the air hole 7 to form mixed gas, and then the mixed gas rises together.
The top and the bottom of the cooling bottle 4 are both provided with openings, the opening at the bottom of the cooling bottle 4 is communicated with the opening at the top of the extraction bottle 2, a cooling component is arranged in the cooling bottle 4, the mixed gas mixed at the steam conduit 6 rises to the cooling bottle 4, and the mixed gas is liquefied when contacting the cooling component in the cooling bottle 4 and drops back into the extraction bottle 2.
The top of the distillation flask 1 is provided with an opening, one end of the connecting pipe 3 is connected with the bottom of the extraction flask 2, and the other end of the connecting pipe 3 is connected with the opening of the distillation flask 1.
According to the utility model, the extraction bottle 2 is arranged above the distillation bottle 1 and is communicated through the connecting pipe 3, the distillation bottle 1 and the extraction bottle 2 can be heated through one heating source, vapor heated by liquid in the distillation bottle 1 and the extraction bottle 2 is mixed in a vapor conduit 6, the vapor is cooled by the cooling bottle 4 and then drops into the extraction bottle 2, and the solution in the extraction bottle 2 can be separated and extracted through connecting pipes after the through holes are formed at different heights of the extraction bottle 2.
In this embodiment, the cooling component is a condensation pipe 13, the cooling bottle 4 is internally provided with a containing cavity 14, the condensation pipe 13 is communicated with the containing cavity 14, a first connecting hole 15 and a second connecting hole 16 are formed in the side wall of the cooling bottle 4, the first connecting hole 15 is communicated with the condensation pipe 13, the second connecting hole 16 is communicated with the containing cavity 14, the second connecting hole 16 is located above the first connecting hole 15, cooling liquid is injected from the lower side of the condensation pipe 13, the cooling liquid is injected from the first connecting hole 15 under the pressure of the injected liquid, enters the containing cavity 14 after passing through the condensation pipe 13, flows out from the second connecting hole 16, and can always dynamically circulate the cooling liquid, so that the cooling effect of the cooling liquid is better. To further increase the cooling efficiency, the condensation duct 13 is in this embodiment of a spiral shape. The spiral shape is serpentine and rises from bottom to top, so that the contact area of the condensation pipe 13 can be enlarged in the same space, and the cooling effect is better.
Regarding the extraction of the solvent in the extraction flask 2, the extractor further comprises in this embodiment a first outflow pipe 8, a second outflow pipe 9, a first piston 10, a second piston 12 and a discharge pipe 11; one end of the first outflow pipe 8 is communicated with the side wall of the extraction bottle 2, and the other end of the first outflow pipe 8 is communicated with the distillation bottle 1. One end of the second outflow pipe 9 is communicated with the bottom of the extraction bottle 2, the other end of the second outflow pipe 9 is communicated with the first outflow pipe 8, a first piston 10 is arranged at the communication part of the second outflow pipe 9 and the first outflow pipe 8, and the conduction state of the first outflow pipe 8 and the second outflow pipe 9 is regulated and controlled through the first piston 10. One end of the discharge pipe 11 is communicated with the bottom of the extraction bottle 2, and a second piston 12 is arranged on the discharge pipe 11.
After vapor in the distillation flask 1 is mixed with solvent vapor in the extraction flask 2 and is cooled and dropped back to the extraction flask 2, water and solvent are layered in the extraction flask 2 due to different densities, the on-off state of the first outflow pipe 8 and the second outflow pipe 9 is regulated and controlled by the first piston 10 to discharge upper-layer liquid, when the upper-layer liquid needs to be discharged, the first outflow pipe 8 is conducted, the second outflow pipe 9 is closed, the upper-layer liquid can be discharged, when the lower-layer liquid needs to be discharged, the second outflow pipe 9 or the discharge pipe 11 is conducted, and the first outflow pipe 8 is closed, so that the lower-layer liquid can be discharged.
In order to match more modes, the device provided by the embodiment further comprises an air guide plug 5, openings are formed in the bottom and the top of the air guide plug 5, the opening in the bottom of the air guide plug 5 is communicated with the opening in the top of the cooling bottle 4, the size of the opening in the top of the air guide plug 5 is smaller than that of the opening in the bottom of the air guide plug 5, and the opening in the top of the air guide plug 5 (shown as a position 17 in the figure) can be connected with a vacuum pump to realize the use of the device under the condition of reduced pressure.
The practical application examples are as follows: 150g of water and 60g of anhydrous cream are added into a distillation flask 1, 30mL of diethyl ether is added into an extraction flask 2, and the distillation flask 1, an extractor, a cooling flask 4 and an air guide plug 5 are sequentially connected in a sealing manner. The condensate is connected, the distillation flask 1 is heated and the water is kept boiling; when about 20mL of condensed water is contained in the extraction flask 2 (water may be added to the extraction flask 2 in advance), the first piston 10 is adjusted, and the second outflow pipe 9 is connected to allow the condensed water to flow back to the distillation flask 1 at a proper speed. After a prescribed period of treatment, heating is stopped, most of the condensed water is refluxed into the distillation flask 1 or discharged, and diethyl ether is collected for detection. When vacuum is needed to be pumped, the vacuum pump is connected through the air guide plug 5 to manufacture a negative pressure environment in the device.
The wall of the vapor conduit 6 may be a single layer or a double layer, and when a double layer vapor conduit 6 is used, heat conduction between vapor and solvent through the wall of the vapor conduit 6 may be reduced or insulated.
Embodiment two: referring to fig. 2, as shown, the present embodiment provides another implementation of the extractor, which in the present embodiment further includes a third outflow pipe 21, a third piston 23, and a first return pipe 22; the third outflow pipe 21 is communicated with the bottom of the extraction bottle 2, one end of the first return pipe 22 is communicated with the third outflow pipe 21, the other end of the first return pipe 22 is communicated with the distillation bottle 1, and the third piston 23 is arranged at the communication position of the first return pipe 22 and the third outflow pipe 21 and used for regulating and controlling the conduction state of the third outflow pipe 21 and the first return pipe 22. Other portions are the same as those of the first embodiment, and will not be described here.
In connection with the structure of example two, a specific embodiment is provided wherein 150g of water and 50g of a flavoring oil are added to distillation flask 1 and 20mL of n-hexane are added to extraction flask 2. The distillation flask 1, the extractor, the cooling flask 4 and the air guide plug 5 are sequentially connected in a sealing way. The condensate is turned on and a vacuum pump is connected to heat the flask 1 and keep the water boiling. When about 10mL of condensed water is contained in the extraction flask 2 (water may be added to the extraction flask 2 in advance), the third piston 23 is adjusted, and the bottom third outflow pipe 21 and the first return pipe 22 are connected to return the condensed water to the distillation flask 1 at a proper speed. After a predetermined time of treatment, the heating was stopped, and the connection to the vacuum pump was disconnected. Most of the condensed water is refluxed to the distillation flask 1 or discharged, and n-hexane is collected for detection. When vacuum is needed to be pumped, the vacuum pump is connected through the air guide plug 5 to manufacture a negative pressure environment in the device.
Embodiment III: referring to fig. 3, as shown, the present embodiment provides another implementation of the extractor, which in this embodiment further comprises a fourth outflow pipe 18, a fourth piston 19 and a second return pipe 20; the fourth outflow pipe 18 is communicated with the extraction bottle 2 at the bottom of the extraction bottle 2 and extends into the extraction bottle 2, one end of the second return pipe 20 is communicated with the fourth outflow pipe 18 outside the extraction bottle 2, the other end of the second return pipe 20 is communicated with the distillation bottle 1, and the fourth piston 19 is arranged at the joint of the second return pipe 20 and the fourth outflow pipe 18 and used for regulating and controlling the conduction state of the fourth outflow pipe 18 and the second return pipe 20. Other portions are the same as those of the first embodiment, and will not be described here.
In combination with the structure of example three, a specific embodiment was provided in which 150g of water and 60g of anhydrous cream were added to the distillation flask 1, 30mL of methylene chloride was added to the extraction flask 2, and the distillation flask 1, the extractor, the cooling flask 4 and the air-guide stopper 5 were hermetically connected in this order. The condensate is connected, the distillation flask 1 is heated and the water is kept boiling; when condensed water is supplied from the extraction flask 2 to the orifice of the fourth outflow pipe 18 (water may be supplied to the extraction flask 2 in advance), the fourth piston 19 is adjusted, and the fourth outflow pipe 18 and the second return pipe 20 are connected to supply the condensed water to the distillation flask 1. After a prescribed time of treatment, heating was stopped and methylene chloride was collected for detection. When vacuum is needed to be pumped, the vacuum pump is connected through the air guide plug 5 to manufacture a negative pressure environment in the device.
Embodiment four: 200mL of solvent to be recovered is added into the distillation flask, and the distillation flask, the extractor, the cooling flask and the air guide plug are sequentially connected in a sealing manner. The condensate is connected, the reflux is closed, and the distillation flask is heated and the solvent is kept boiling; and adjusting the piston to flow the solvent condensed and reflowed into the extraction bottle to the liquid storage bottle.
While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and the equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.
Claims (10)
1. A sample preprocessing device for fragrance component detects in grease, its characterized in that: comprises a distillation bottle, an extractor and a cooling bottle;
the extractor comprises an extraction bottle and a connecting pipe, wherein openings are formed in the bottom and the top of the extraction bottle, the connecting pipe is connected to the bottom of the extraction bottle, the diameter of the connecting pipe is larger than the size of the opening in the bottom of the extraction bottle, and the opening in the bottom of the extraction bottle is positioned in the connecting range of the connecting pipe and the extraction bottle; the extraction bottle is internally provided with a steam conduit with one end open, the open end of the steam conduit is communicated with the bottom opening of the extraction bottle, and the side wall of the other end of the steam conduit is provided with an air hole;
the top and the bottom of the cooling bottle are both provided with openings, the opening at the bottom of the cooling bottle is communicated with the opening at the top of the extraction bottle, and a cooling assembly is arranged in the cooling bottle;
the top of the distillation flask is provided with an opening, one end of the connecting pipe is connected with the bottom of the extraction flask, and the other end of the connecting pipe is connected with the opening of the distillation flask.
2. A sample pretreatment apparatus for detecting aroma components in fats & oils according to claim 1, characterized in that: the cooling assembly is a condensation pipe, a containing cavity is formed in the cooling bottle, the condensation pipe is communicated with the containing cavity, a first connecting hole and a second connecting hole are formed in the side wall of the cooling bottle, the first connecting hole is communicated with the condensation pipe, and the second connecting hole is communicated with the containing cavity.
3. A sample pretreatment apparatus for detecting aroma components in fats & oils according to claim 2, characterized in that: the second connecting hole is positioned above the first connecting hole.
4. A sample pretreatment apparatus for detecting aroma components in fats & oils according to claim 2, characterized in that: the condensing tube is in a spiral shape.
5. A sample pretreatment apparatus for detecting aroma components in fats & oils according to claim 1, characterized in that: the extractor further comprises a first outflow pipe, a second outflow pipe, a first piston, a second piston and a discharge pipe; one end of the first outflow pipe is communicated with the side wall of the extraction bottle, and the other end of the first outflow pipe is communicated with the distillation bottle; one end of the second outflow pipe is communicated with the bottom of the extraction bottle, the other end of the second outflow pipe is communicated with the first outflow pipe, a first piston is arranged at the communication part of the second outflow pipe and the first outflow pipe, and the conduction state of the first outflow pipe and the second outflow pipe is regulated and controlled through the first piston; one end of the discharge pipe is communicated with the bottom of the extraction bottle, and the second piston is arranged on the discharge pipe.
6. A sample pretreatment apparatus for detecting aroma components in fats & oils according to claim 1, characterized in that: the extractor further comprises a third outflow pipe, a third piston and a first return pipe; the third outflow pipe is communicated with the bottom of the extraction bottle, one end of the first return pipe is communicated with the third outflow pipe, the other end of the first return pipe is communicated with the distillation bottle, and the third piston is arranged at the communication position of the first return pipe and the third outflow pipe and used for regulating and controlling the conduction state of the third outflow pipe and the first return pipe.
7. A sample pretreatment apparatus for detecting aroma components in fats & oils according to claim 1, characterized in that: the extractor further comprises a fourth outflow pipe, a fourth piston and a second return pipe; the fourth outflow pipe is communicated with the extraction bottle at the bottom of the extraction bottle and extends into the extraction bottle, one end of the second return pipe is communicated with the fourth outflow pipe outside the extraction bottle, the other end of the second return pipe is communicated with the distillation bottle, and the fourth piston is arranged at the joint of the second return pipe and the fourth outflow pipe and used for regulating and controlling the conduction state of the fourth outflow pipe and the second return pipe.
8. A sample pretreatment apparatus for detecting aroma components in fats & oils according to claim 1, characterized in that: the sample pretreatment device for detecting the aroma components in the grease further comprises an air guide plug, openings are formed in the bottom and the top of the air guide plug, the opening in the bottom of the air guide plug is communicated with the opening in the top of the cooling bottle, and the size of the opening in the top of the air guide plug is smaller than that of the opening in the bottom of the air guide plug.
9. A sample pretreatment apparatus for detecting aroma components in fats & oils according to claim 1, characterized in that: the pipe wall of the steam pipe is a single layer.
10. A sample pretreatment apparatus for detecting aroma components in fats & oils according to claim 1, characterized in that: the pipe wall of the steam pipe is double-layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320903662.4U CN219977915U (en) | 2023-04-20 | 2023-04-20 | Sample pretreatment device for detecting aroma components in grease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320903662.4U CN219977915U (en) | 2023-04-20 | 2023-04-20 | Sample pretreatment device for detecting aroma components in grease |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219977915U true CN219977915U (en) | 2023-11-07 |
Family
ID=88581960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320903662.4U Active CN219977915U (en) | 2023-04-20 | 2023-04-20 | Sample pretreatment device for detecting aroma components in grease |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219977915U (en) |
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2023
- 2023-04-20 CN CN202320903662.4U patent/CN219977915U/en active Active
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