CN219038141U - Device for calibrating suction flow of comprehensive verification instrument of smoking machine - Google Patents
Device for calibrating suction flow of comprehensive verification instrument of smoking machine Download PDFInfo
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- CN219038141U CN219038141U CN202223299668.XU CN202223299668U CN219038141U CN 219038141 U CN219038141 U CN 219038141U CN 202223299668 U CN202223299668 U CN 202223299668U CN 219038141 U CN219038141 U CN 219038141U
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Abstract
The utility model provides a device for calibrating the suction flow of a comprehensive verification instrument of a smoking machine, which comprises the comprehensive verification instrument of the smoking machine, at least two standard constant flow holes, a multi-channel electromagnetic valve matched with the number of the standard constant flow holes and a negative pressure source, wherein the air inlet end of the comprehensive verification instrument of the smoking machine is communicated with the atmosphere, the air outlet end of the comprehensive verification instrument of the smoking machine is communicated with the head end of each standard constant flow hole through a plurality of branch pipelines, the tail end of each standard constant flow hole is communicated with each inlet of the multi-channel electromagnetic valve through a pipeline, and the unique outlet of the multi-channel electromagnetic valve is communicated with the negative pressure source through a pipeline. The device for calibrating the suction flow of the comprehensive verification instrument of the smoking machine forms different flow specifications through the matching and combination of different standard constant flow holes, improves the calibrated span, and can calibrate whether the instantaneous flow measured by the comprehensive verification instrument of the smoking machine is accurate or not due to the addition of the standard constant flow holes.
Description
Technical Field
The utility model relates to the field of metering instrument and meter calibration, in particular to a device for calibrating the suction flow of a comprehensive verification instrument of a smoking machine.
Background
The comprehensive detector for smoking machine is used in fast and accurate detection of smoking machine and electronic cigarette for routine analysis and has the functions of detecting smoking flow rate, detecting leakage of smoking machine, counting time, etc.
The drawing flow diagram, which is an important technical parameter of the smoking machine, refers to a diagram of the flow of air measured behind the butt as a function of time.
In order to ensure the accuracy and reliability of the measurement of the comprehensive verification instrument of the smoking machine, a corresponding calibration method is needed, and the current calibration method for the comprehensive verification instrument of the smoking machine has the following two problems:
first, smoking machine definition and standard conditions for routine analysis are specified in GB/T16450-2004: the detection standard of the smoking machine is that the suction capacity (35.0+/-0.3) mL, the suction duration (2.00+/-0.02) s and the maximum air flow rate should be 25 mL/s-30 mL/s; the electronic cigarette GB 41700-2022 specifies: the detection standard of the electronic cigarette is that the suction capacity (55.0+/-0.6) mL, the suction duration is (3.0+/-0.1) s, and the maximum flow is stable at 16.5 mL/s-20.1 mL/s.
Therefore, the standard span of the suction capacity for the detection of the smoking machine and the electronic cigarette is larger, and the conventional calibration method does not have the condition of large-span calibration due to single flow span which can be generated.
Secondly, no calibration method can be used for metering and calibrating the instantaneous suction flow measured by the comprehensive verification instrument of the smoking machine at present.
In order to solve the above problems, an ideal technical solution is always sought.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, and provides a device for calibrating the suction flow of the comprehensive verification instrument of the smoking machine, which can calibrate and detect the suction flow in a large-span way and can test the instantaneous suction flow of the comprehensive verification instrument of the smoking machine.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a device of calibration smoking machine comprehensive verification appearance suction flow, includes smoking machine comprehensive verification appearance, two at least standard constant flow holes, with the multichannel solenoid valve and the negative pressure source of standard constant flow hole quantity matching, the inlet end intercommunication atmosphere of smoking machine comprehensive verification appearance, the end of giving vent to anger are through a plurality of branch pipelines and the head end intercommunication in each standard constant flow hole, the tail end in each standard constant flow hole is through pipeline intercommunication each import of multichannel solenoid valve, the unique export of multichannel solenoid valve is through pipeline intercommunication the negative pressure source.
Based on the above, the flow specifications of the standard constant flow holes are the same or not the same or different, and can be arranged in groups according to the step flow specification so as to form various flow specifications, such as 20ml-100ml, and at least can meet the simulation requirements of the smoking machine and the electronic cigarette.
Based on the above, the specifications of all the passages of the multi-passage electromagnetic valve are consistent, so that the interference to the detection process is reduced.
The negative pressure source is a negative pressure pump or a negative pressure generator, so that stable negative pressure is formed. The multi-way electromagnetic valve is provided with a remote control switch so as to facilitate remote control.
Compared with the prior art, the utility model has substantial characteristics and progress, and in particular, the utility model has the following two advantages:
first, add standard constant flow hole, produce standard flow, through with each standard constant flow hole mutual collocation combination, can form the standard flow of different specifications, utilize this standard flow, can detect smoking machine comprehensive verification appearance's suction capacity testing performance, because the adjustable scope of combination form is big, can form the detection span of comparatively extensive, satisfy different needs.
Second, because the standard constant flow hole can produce standard flow, when the smoking machine comprehensive verification instrument is used for measuring the drawing flow chart, whether the flow value in the generated drawing flow chart is constant along with time, whether mutation occurs or not, and whether the detected flow value is matched with the flow value which can be produced by the set standard constant flow hole or not can be observed, so that the measurement and calibration of the instantaneous drawing flow can be realized.
Drawings
Figure 1 is a schematic diagram of the connection of the device for calibrating the suction flow of the comprehensive verification instrument of the smoking machine in the utility model.
In the figure: 1. a comprehensive detector of a smoking machine; 2. a first standard constant flow orifice; 3. a second standard constant flow orifice; 4. a three-way electromagnetic valve; 5. and a negative pressure source.
Detailed Description
The technical scheme of the utility model is further described in detail through the following specific embodiments.
As shown in fig. 1, a device for calibrating the suction flow of a comprehensive verification instrument of a smoking machine comprises a comprehensive verification instrument 1 of the smoking machine, a first standard constant flow hole 2, a second standard constant flow hole 3, a three-way electromagnetic valve 4 and a negative pressure source 5;
the air inlet end of the smoking machine comprehensive verification instrument 1 is communicated with the atmosphere, the air outlet end is connected with a section of main pipeline and then is communicated with the head end of the first standard constant flow hole 2 and the head end of the second standard constant flow hole 3 through a plurality of branch pipelines, the tail end of the first standard constant flow hole 2 and the tail end of the second standard constant flow hole 3 are communicated with two inlets of the three-way electromagnetic valve 4 through pipelines, the two branch specifications of the three-way electromagnetic valve are consistent, and the outlet of the three-way electromagnetic valve 4 is communicated with the negative pressure source 5 through a pipeline; the multi-way electromagnetic valve is provided with a remote control switch so as to facilitate remote control.
The working process comprises the following steps:
(1) And opening the branch valve of the three-way electromagnetic valve corresponding to the first standard constant flow hole 2, and closing the branch valve of the three-way electromagnetic valve corresponding to the second standard constant flow hole 3, wherein the flow passing through the comprehensive verification instrument of the smoking machine is the flow provided by the first standard constant flow hole 2.
(2) And opening the branch valve of the three-way electromagnetic valve corresponding to the second standard constant flow hole 3, and closing the branch valve of the three-way electromagnetic valve corresponding to the first standard constant flow hole 2, wherein the flow passing through the comprehensive verification instrument of the smoking machine is the flow provided by the second standard constant flow hole 3.
(3) And opening the branch valve of the three-way electromagnetic valve corresponding to the first standard constant flow hole 2, and opening the branch valve of the three-way electromagnetic valve corresponding to the second standard constant flow hole 3, wherein the flow passing through the comprehensive verification instrument of the smoking machine is the sum of the flow provided by the first standard constant flow hole 2 and the second standard constant flow hole 3.
In this way, large span traffic volume detection can be achieved.
By the function of the suction flow rate map of the smoking machine comprehensive verification device 1, the suction flow rate map is obtained, no matter how many standard constant flow holes (CFOs) are used for providing the flow rate, the change curve of the flow rate measured by the smoking machine comprehensive verification device along with time is a straight line, and the sum of the value of the straight line and the value of each standard constant flow hole is equal.
Thus, the accuracy and the stability of the flow measurement of the comprehensive verification instrument of the smoking machine can be obtained.
In the preferred embodiment, the number of the standard constant flow holes can be more than 3, and the specifications can be matched and combined in a mode of 1ml, 2ml, 5ml, 10ml and 20ml, so that a plurality of specifications can be formed, and the minimum requirements of 20ml-100ml can be met, and the requirements of a simulated smoking machine and an electronic cigarette can be met.
The flow specification of each standard constant flow orifice may be set to be the same or not exactly the same.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.
Claims (8)
1. A device for calibrating the suction flow of a comprehensive verification instrument of a smoking machine, which is characterized in that: the multi-channel electromagnetic valve comprises a smoking machine comprehensive verification instrument, at least two standard constant flow holes, a multi-channel electromagnetic valve matched with the number of the standard constant flow holes and a negative pressure source, wherein the air inlet end of the smoking machine comprehensive verification instrument is communicated with the atmosphere, the air outlet end of the smoking machine comprehensive verification instrument is communicated with the head end of each standard constant flow hole through a plurality of branch pipelines, the tail end of each standard constant flow hole is communicated with each inlet of the multi-channel electromagnetic valve through a pipeline, and the unique outlet of the multi-channel electromagnetic valve is communicated with the negative pressure source through a pipeline.
2. The device for calibrating a smoking machine integrated verification meter puff flow according to claim 1, wherein: the flow specifications of the standard constant flow holes are the same.
3. The device for calibrating a smoking machine integrated verification meter puff flow according to claim 1, wherein: the flow specifications of the standard constant flow holes are not identical or completely different.
4. A device for calibrating a smoking machine comprehensive verification meter puff flow according to claim 3, wherein: the standard constant flow holes are arranged in groups according to the step flow specification.
5. A device for calibrating a smoking machine synthesis verification meter puff flow according to any one of claims 1 to 4, wherein: and the specifications of all the passages of the multi-passage electromagnetic valve are consistent.
6. The device for calibrating a smoking machine integrated verification meter puff flow according to claim 5, wherein: the sum of the flow rates of the standard constant flow holes is between 20mL and 100 mL.
7. A device for calibrating a smoking machine integrated verification meter puff flow according to claim 1 or 2 or 3 or 4 or 6, wherein: the negative pressure source is a negative pressure pump or a negative pressure generator.
8. A device for calibrating a smoking machine integrated verification meter puff flow according to claim 1 or 2 or 3 or 4 or 6, wherein: the multi-path solenoid valve is configured with a remote switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223299668.XU CN219038141U (en) | 2022-12-09 | 2022-12-09 | Device for calibrating suction flow of comprehensive verification instrument of smoking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223299668.XU CN219038141U (en) | 2022-12-09 | 2022-12-09 | Device for calibrating suction flow of comprehensive verification instrument of smoking machine |
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| Publication Number | Publication Date |
|---|---|
| CN219038141U true CN219038141U (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223299668.XU Active CN219038141U (en) | 2022-12-09 | 2022-12-09 | Device for calibrating suction flow of comprehensive verification instrument of smoking machine |
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| CN (1) | CN219038141U (en) |
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2022
- 2022-12-09 CN CN202223299668.XU patent/CN219038141U/en active Active
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