CN217401962U - Tobacco air permeability flow disc clamp - Google Patents
Tobacco air permeability flow disc clamp Download PDFInfo
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- CN217401962U CN217401962U CN202221213041.5U CN202221213041U CN217401962U CN 217401962 U CN217401962 U CN 217401962U CN 202221213041 U CN202221213041 U CN 202221213041U CN 217401962 U CN217401962 U CN 217401962U
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- rear end
- middle section
- air
- end cover
- flow disc
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model provides a tobacco air permeability flow disc clamp, including front end housing, interlude and rear end housing, the interlude is a section pipeline, set up air inlet and rear end air flue interface on the front end housing, the front end housing is installed at the front end of interlude and rear end air flue interface and the front end gas port sealing connection of interlude, be provided with the front end air flue interface, flow disc holding chamber and the gas outlet of order sealed intercommunication on the rear end housing, the rear end housing is installed at the rear end of interlude and front end air flue interface and the rear end gas port sealing connection of interlude; a temperature measuring port is arranged at the side part of the front half section of the middle section; a first differential pressure meter interface communicated with a pipeline is arranged at the air passage interface at the rear half section of the middle section or the front end of the rear end cover, and a second differential pressure meter interface communicated with the air outlet is arranged at the rear side of the flow disc accommodating cavity on the rear end cover. The fixture has the advantages of solving the problem of air flow disturbance, correcting the temperature measurement value and improving the measurement accuracy.
Description
Technical Field
The utility model relates to a standardized field of tobacco, specific theory has related to a tobacco air permeability flow dish anchor clamps.
Background
The change of the air permeability of the cigarette paper directly affects the smoke characteristics and the sensory quality of the cigarette, so that the air permeability of the cigarette paper needs to be strictly detected and controlled. A paper air permeability tester is a key instrument for detecting and controlling the air permeability of paper in the tobacco industry. The special air permeability flow tray for tobacco (short for flow tray) is a standard instrument for calibrating paper air permeability measuring instrument. The measurement result of the flow tray has a direct influence on the air permeability of the paper measured by the air permeability measuring instrument.
At present, the tobacco industry calibrates a flow rate disc according to JJG (tobacco) 18-2012 'air permeability flow rate disc verification regulation special for tobacco', and environmental conditions during measurement are specified in the regulation.
The temperature has a great influence on the measurement result of the flow rate plate, the final result of the flow rate plate is corrected by adopting the ambient temperature in the actual measurement process, but the compressed air entering the flow rate plate is connected with the external atmosphere, a temperature measurement interface is not arranged in front of the gas entering the flow rate plate in the existing clamp gas, and whether the temperature is consistent with the external ambient temperature needs to be further confirmed so as to further improve the measurement accuracy.
And before the gas enters the flow disc, the gas flow directly entering the flow disc through the pipeline can generate disturbance, when the differential pressure of the flow disc is adjusted, the disturbance influences the direct reading of the measurement result, the reading needs to be carried out after the indication value is stable, and the experimental efficiency is low.
In order to solve the above problems, people always seek an ideal technical solution.
Disclosure of Invention
The utility model aims at the not enough of prior art to a tobacco air permeability flow dish anchor clamps that solve air current disturbance problem, revise the temperature measurement value, improve the measurement accuracy is provided.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a tobacco air permeability flow disc clamp comprises a front end cover, a middle section and a rear end cover, wherein the middle section is a section of pipeline, an air inlet and a rear end air passage interface are arranged on the front end cover, the front end cover is installed at the front end of the middle section, the rear end air passage interface is hermetically connected with a front end air port of the middle section, a front end air passage interface, a flow disc accommodating cavity and an air outlet which are sequentially and hermetically communicated are arranged on the rear end cover, the rear end cover is installed at the rear end of the middle section, and the front end air passage interface is hermetically connected with the rear end air port of the middle section;
a temperature measuring port is formed in the side part of the front half section of the middle section;
and a first differential pressure meter interface communicated with the pipeline is arranged at the front end air passage interface of the rear half section of the middle section or the rear end cover, and a second differential pressure meter interface communicated with the air outlet is arranged at the rear side of the flow disc accommodating cavity on the rear end cover.
Basically, the ratio of the length of the middle section to the diameter of the inner pipe of the middle section is not less than 10, the rectifier is installed at the front half section of the middle section, and the ratio of the distance from the rectifier to the flow disc accommodating cavity to the diameter of the inner pipe of the middle section is not less than 20.
Basically, the middle section is the pipeline that has the heat preservation intermediate layer.
Basically, the front end cover is in threaded connection with the middle section, and a sealing ring is arranged between the rear end air passage interface and the front end air port.
Basically, the rear end cover is in threaded connection with the middle section, and a sealing ring is arranged between the front end air flue interface and the rear end air port.
Basically, the rear end cover is of a split structure, and the split position is provided with the flow disc accommodating cavity.
Basically, a thermocouple is installed at the temperature measuring port.
Basically, the heat-insulating interlayer of the pipeline is a vacuum heat-insulating layer.
Basically, the pipe diameters of the rear end air flue interface of the front end cover and the front end air flue interface of the rear end cover are equal to the inner diameter of the middle section.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model discloses set up an axial dimension relatively longer interlude, after outside air current got into the interlude, can carry out the rectification to the air current, keep in relatively stable state before gas gets into the flow dish, prevent that gas from crossing fast forward the inflow dish and produce the air current disturbance phenomenon through the pipeline, influence measuring result's accuracy.
In addition, the temperature measurement interface is arranged at the front half section of the middle section, and the temperature measurement value is brought into the correction of the measurement result, so that the measurement result is more accurate.
Drawings
Fig. 1 is a schematic structural view of a tobacco air permeability flow disc clamp in embodiment 1 of the present invention.
Fig. 2 is a schematic view of the internal structure of a tobacco air permeability flow disc clamp in embodiment 1 of the present invention.
Fig. 3 is a schematic view of the internal structure of a tobacco air permeability flow plate fixture in embodiment 2 of the present invention.
In the figure: 1. a front end cover; 1-1. an air inlet; 1-2, a rear end air passage interface; 2. a middle section; 3. a rear end cap; 3-1, a front end airway interface; 3-2, a flow disc accommodating cavity; 3-3, air outlet; 4. a first differential pressure gauge interface; 5. a second differential pressure gauge interface; 6. a rectifier.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
Example 1
As shown in fig. 1 and 2, a tobacco air permeability flow disc clamp comprises a front end cover 1, a middle section 2 and a rear end cover 3, wherein the middle section 2 is a section of pipeline, an air inlet 1-1 and a rear end air passage interface 1-2 are arranged on the front end cover 1, the front end cover 1 is in threaded connection with the front end of the middle section 2, and the rear end air passage interface and a front end air port of the middle section 2 are provided with sealing rings for sealing, so that air leakage is prevented. The rear end cover 3 is provided with a front end air passage interface 3-1, a flow disc accommodating cavity 3-2 and an air outlet 3-3 which are sequentially and hermetically communicated, the rear end cover is installed at the rear end of the middle section 2 through threads, and the front end air passage interface and a rear end air port of the middle section are sealed through a sealing ring to prevent air leakage.
The rear end cover 3 is of a split structure, and the split position is provided with the flow disc accommodating cavity 3-2 for installing the flow disc.
The front end cover, the rear end cover and the middle section are all made of plastics or acrylic.
The lateral part of the front half section of the middle section 2 is provided with a temperature measuring port for installing a temperature measuring device, such as a thermocouple.
The rear half section of interlude or the front end air flue kneck of rear end cover are provided with the intercommunication the first differential pressure meter interface 4 of pipeline, it is provided with the intercommunication to lie in the flow tray on the rear end cover and hold the chamber rear side the second differential pressure meter interface 5 of gas outlet, two differential pressure meters are connected respectively to first differential pressure meter interface 4 and second differential pressure meter interface 5 for measure the pressure differential of flow tray both sides.
The middle section 2 is a pipeline with a heat-insulating interlayer, and in the embodiment, a vacuum heat-insulating layer is selected.
The pipe diameters of the rear end air flue interface of the front end cover 1 and the front end air flue interface of the rear end cover 3 are equal to the inner diameter of the middle section 2, so that the stability of air flow passing is guaranteed.
The working principle is as follows:
install the flow dish in the flow dish of rear end cap holds the chamber, then install front end housing 1 and rear end cap 3 respectively in the front end and the rear end of interlude 2, then install the thermocouple at the temperature measurement mouth, install two differential pressure meters respectively at first differential pressure meter interface and second differential pressure meter interface and start, accomplish the equipment of whole device.
Then connecting the air inlet 1-1 of the front end cover 1 with an air supply device, connecting the air outlet 3-3 of the rear end cover with the atmosphere, keeping for a period of time after the air supply device is started, reading temperature data and readings of the two differential pressure meters, completing measurement of the differential pressure at the two ends of the flow disc, bringing the differential pressure and the temperature data into the flow disc through conversion described in the flow disc verification procedure, correcting the flow value of the flow disc, and completing measurement.
Because the length of interlude is long enough, can carry out the rectification to the air current that gets into, makes its relatively stable, when effectively preventing that air compressor machine from making pressure, gas produces the disturbance phenomenon, guarantees measuring result's accuracy and stability, and the temperature measurement interface of adding in addition can bring a relatively stable temperature measurement value into measuring result's correction, makes flow dish measuring result more accurate.
Example 2
As shown in fig. 3, the main differences between the present embodiment and embodiment 1 are: the ratio of the length of the middle section to the diameter of the inner tube of the middle section is not less than 10, the rectifier 6 is installed at the front half section of the middle section, and the ratio of the distance from the rectifier to the flow disc accommodating cavity to the diameter of the inner tube of the middle section is not less than 20.
In this embodiment, the rectifier 6 is added, so that abnormal flow can be eliminated, rotational flow is prevented, the length of the middle section is shortened, and airflow during measurement is more stable.
It should be finally noted that the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (10)
1. The utility model provides a tobacco air permeability flow dish anchor clamps which characterized in that: the flow disc type air conditioner comprises a front end cover, a middle section and a rear end cover, wherein the middle section is a section of pipeline, the front end cover is provided with an air inlet and a rear end air passage interface, the front end cover is installed at the front end of the middle section, the rear end air passage interface is hermetically connected with a front end air port of the middle section, the rear end cover is provided with a front end air passage interface, a flow disc accommodating cavity and an air outlet which are sequentially hermetically communicated, the rear end cover is installed at the rear end of the middle section, and the front end air passage interface is hermetically connected with a rear end air port of the middle section;
a temperature measuring port is formed in the side part of the front half section of the middle section;
and a first differential pressure meter interface communicated with the pipeline is arranged at the rear half section of the middle section or the front end air passage interface of the rear end cover, and a second differential pressure meter interface communicated with the air outlet is arranged at the rear side of the flow disc accommodating cavity on the rear end cover.
2. The tobacco air permeability flow disc clamp of claim 1, wherein: the ratio of the length of the middle section to the diameter of the inner tube of the middle section is not less than 10, the rectifier is installed at the front half section of the middle section, and the ratio of the distance from the rectifier to the flow disc accommodating cavity to the diameter of the inner tube of the middle section is not less than 20.
3. The tobacco air permeability flow disc clamp of claim 1 or 2, wherein: the middle section is a pipeline with a heat-insulating interlayer.
4. The tobacco air permeability flow disc holder of claim 3, wherein: the front end cover is in threaded connection with the middle section, and a sealing ring is arranged between the rear end air flue interface and the front end air port.
5. The tobacco air permeability flow disc clamp of claim 1, 2 or 4, wherein: the rear end cover is in threaded connection with the middle section, and a sealing ring is arranged between the front end air flue interface and the rear end air port.
6. The tobacco air permeability flow disc holder of claim 5, wherein: the rear end cover is of a split structure, and the split position is provided with the flow disc accommodating cavity.
7. A tobacco air permeability flow disc clamp according to claim 1 or 2 or 4 or 6, wherein: and a thermocouple is arranged at the temperature measuring port.
8. The tobacco air permeability flow disc clamp of claim 3, wherein: the heat-insulating interlayer of the pipeline is a vacuum heat-insulating layer.
9. The tobacco air permeability flow disc clamp of claim 7, wherein: the pipe diameters of the rear end air passage interface of the front end cover and the front end air passage interface of the rear end cover are equal to the inner diameter of the middle section.
10. The tobacco air permeability flow disc clamp of claim 9, wherein: the front end cover, the rear end cover and the middle section are all made of plastics or acrylic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221213041.5U CN217401962U (en) | 2022-05-20 | 2022-05-20 | Tobacco air permeability flow disc clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221213041.5U CN217401962U (en) | 2022-05-20 | 2022-05-20 | Tobacco air permeability flow disc clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217401962U true CN217401962U (en) | 2022-09-09 |
Family
ID=83144185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221213041.5U Active CN217401962U (en) | 2022-05-20 | 2022-05-20 | Tobacco air permeability flow disc clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217401962U (en) |
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2022
- 2022-05-20 CN CN202221213041.5U patent/CN217401962U/en active Active
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