CN215297026U - Device for measuring smoke resistance standard rod for cigarettes by positive pressure method and device for measuring ventilation rate standard part for cigarettes - Google Patents
Device for measuring smoke resistance standard rod for cigarettes by positive pressure method and device for measuring ventilation rate standard part for cigarettes Download PDFInfo
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- CN215297026U CN215297026U CN202120687100.1U CN202120687100U CN215297026U CN 215297026 U CN215297026 U CN 215297026U CN 202120687100 U CN202120687100 U CN 202120687100U CN 215297026 U CN215297026 U CN 215297026U
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Abstract
The utility model provides a device for measuring a smoke resistance standard rod for cigarettes by a positive pressure method, which comprises a smoke resistance standard rod, a positive pressure air pump, a pressure sensor, a three-way valve, a gas differential pressure meter, a gas flowmeter, a flow regulating valve and a pressure reducing valve; the outlet of the positive pressure gas pump is connected with the inlet of a pressure reducing valve, the outlet of the pressure reducing valve is connected with the inlet of a flow regulating valve, the outlet of the flow regulating valve is connected with the inlet of a gas flowmeter, the outlet of the gas flowmeter is connected with a first interface of a three-way valve, a second interface of the three-way valve is connected with the inlet of a resistance-absorbing standard rod, a third interface of the three-way valve is connected with a differential pressure gauge, and the other end of the resistance-absorbing standard rod is communicated with the atmosphere; the pressure sensor is installed at the outlet of the pressure reducing valve, and the pressure sensor is associated with the pressure reducing valve and the control end of the positive pressure gas pump to stabilize the output gas pressure. The device has the advantages of wider range of generated pressure values, wider data span and better stability.
Description
Technical Field
The utility model relates to a tobacco industry, specific theory has related to a malleation method is measured device of cigarette resistance standard component and is measured device of cigarette ventilation rate standard component.
Background
The cigarette resistance and ventilation rate are important parameters in physical performance indexes of cigarettes and filter sticks, most of the conventional detection equipment adopts a negative pressure source as a source for generating air pressure difference, but the negative pressure equipment has generally low negative pressure generating capacity and generally low pressure, and has a large difference compared with the pressure generated by positive pressure equipment, so that the problems of narrow data span and more experimental limits are easily caused in the detection process.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The utility model aims at the not enough of prior art to a positive pressure method that the scope of production pressure value is wider, data span is wideer, stability is better is measured device of cigarette resistance standard rod and device of measuring cigarette ventilation rate standard component are provided.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a device for measuring a smoke resistance standard rod for cigarettes by a positive pressure method comprises the smoke resistance standard rod, a positive pressure air pump, a pressure sensor, a three-way valve, a gas differential pressure meter, a gas flowmeter, a flow regulating valve and a pressure reducing valve;
The outlet of the positive pressure gas pump is connected with the inlet of a pressure reducing valve, the outlet of the pressure reducing valve is connected with the inlet of a flow regulating valve, the outlet of the flow regulating valve is connected with the inlet of a gas flowmeter, the outlet of the gas flowmeter is connected with a first interface of a three-way valve, a second interface of the three-way valve is connected with the inlet of a resistance-absorbing standard rod, a third interface of the three-way valve is connected with a differential pressure gauge, and the other end of the resistance-absorbing standard rod is communicated with the atmosphere;
the pressure sensor is installed at the outlet of the pressure reducing valve, and the pressure sensor is associated with the pressure reducing valve and the control end of the positive pressure gas pump to stabilize the output gas pressure.
Basically, the air path interfaces among the positive pressure air pump, the pressure reducing valve, the flow regulating valve, the resistance absorbing standard rod, the three-way valve and the gas flowmeter are all communicated in a sealing way.
Basically, the resistance-absorbing standard rod is arranged on a special fixture.
Basically, still include constant temperature and humidity box, standard stick, positive pressure air pump, pressure sensor, three-way valve, gas pressure differential meter, gas flowmeter, flow control valve and relief pressure valve all set up in inside the constant temperature and humidity box.
A device for measuring a ventilation rate standard component for cigarettes by a positive pressure method comprises a ventilation rate standard rod, a clamp, a positive pressure air pump, a pressure sensor, a three-way valve, a gas differential pressure meter, a first gas flowmeter, a second gas flowmeter, a flow regulating valve and a pressure reducing valve;
The outlet of the positive pressure gas pump is connected with the inlet of a pressure reducing valve, the outlet of the pressure reducing valve is connected with the inlet of a flow regulating valve, the outlet of the flow regulating valve is connected with the inlet of a first gas flowmeter, the outlet of the first gas flowmeter is connected with a first interface of a three-way valve, a second interface of the three-way valve is connected with a gas pressure difference meter, a third interface of the three-way valve is connected with a gas circuit end of a clamp, the tail end of the ventilation rate standard rod is clamped in the clamp, the head end of the ventilation rate standard rod is communicated with the atmosphere, and a second gas flowmeter is installed in a gas circuit of the clamp;
and a pressure sensor is arranged at an outlet of the pressure reducing valve and is associated with the pressure reducing valve and a control end of the positive pressure gas pump so as to stabilize the output gas pressure.
Basically, the air circuit interfaces among the positive pressure air pump, the pressure reducing valve, the flow regulating valve, the ventilation rate standard rod, the three-way valve and the gas flowmeter are all communicated in a sealing mode.
Basically, be provided with the gas circuit in the side ventilation hole of intercommunication ventilation rate standard rod in the anchor clamps, the import size of gas circuit is the same in order to realize inclosed with the external diameter size of ventilation rate standard rod, the tail end of anchor clamps is located in the export of gas circuit, second gas flowmeter connects the gas circuit is used for measuring the gas flow who gets into through the side ventilation hole.
Basically, still include constant temperature and humidity box, standard stick, positive pressure air pump, pressure sensor, three-way valve, gas pressure differential meter, gas flowmeter, flow control valve and relief pressure valve all set up in inside the constant temperature and humidity box.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model discloses abandon the mode that negative pressure method was measured, adopt the malleation method to measure, use positive pressure air pump to combine the relief pressure valve, obtain stable gas pressure, then adjust the gas flow that needs through flow control valve, the gaseous volume flow data of standard stick output is obtained to the rethread gas flowmeter, with its control under standard condition, carry out behind 17.5mL/s promptly and inhale the measurement of hindering standard stick and ventilation rate standard stick, and then realize the calibration work of standard stick.
Compared with a negative pressure method, the positive air pressure controllability is better, the stability is better, the adjustable range of the pressure is larger, and the data range is wider.
Drawings
Fig. 1 is the schematic structural diagram of a device for measuring a smoke resistance standard rod for cigarettes by a positive pressure method in embodiment 1 of the utility model.
Fig. 2 is the utility model discloses in 2 the positive pressure method measure the structure schematic diagram of the device of ventilation rate standard component for cigarette.
In the figure: 1. a positive pressure air pump; 2. a pressure reducing valve; 3. a flow regulating valve; 4. a suction resistance standard rod; 5. a three-way valve; 6. a differential gas pressure gauge; 7. a gas flow meter; 8. a pressure sensor; 9. a first gas flow meter; 10. a second gas flow meter; 11. a ventilation rate standard bar; 12. and (4) clamping.
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, a device for measuring a resistance-suction standard rod for a cigarette by a positive pressure method comprises a resistance-suction standard rod 4, a positive pressure air pump 1, two pressure sensors, a three-way valve 5, a gas differential pressure meter 6, a gas flowmeter 7, a flow regulating valve 3 and a pressure reducing valve 2;
an outlet of the positive pressure air pump 1 is connected with an inlet of a pressure reducing valve 2, an outlet of the pressure reducing valve 2 is connected with an inlet of a flow regulating valve 3, an outlet of the flow regulating valve 3 is connected with an inlet of a gas flow meter 6, an outlet of the gas flow meter 6 is connected with a first interface of a three-way valve 5, a second interface of the three-way valve 5 is connected with an inlet of a suction resistance standard rod 4, a third interface of the three-way valve 5 is connected with a differential pressure meter 6, and the other end of the suction resistance standard rod 4 is communicated with the atmosphere;
a first pressure sensor 8 is installed at the outlet of the pressure reducing valve 2, and the first pressure sensor 8 is associated with the pressure reducing valve 2 and the control end of the positive pressure gas pump 1 to stabilize the output gas pressure;
And a second pressure sensor 9 is arranged at the outlet of the gas flowmeter 6 to acquire the gas pressure at one end of the suction resistance standard rod 4.
The positive pressure air pump 1, the pressure reducing valve 2, the flow regulating valve 3, the resistance absorbing standard rod 4, the three-way valve 5 and the air path interface between the gas flow meter 7 are all communicated in a sealing mode, and the resistance absorbing standard rod is installed on a special fixture.
The working principle is as follows:
the positive pressure air pump 1 is started, the working state of the positive pressure air pump and the opening degree of the pressure reducing valve are adjusted by matching with the pressure reducing valve and the first pressure sensor 8, a stable positive pressure air flow source is controlled to be generated, then the flow is adjusted through the flow adjusting valve 3, the experimental requirement of the standard rod is met, accurate inlet end flow is obtained through the gas flowmeter 6, the gas pressure difference at the inlet end of the suction resistance standard rod is obtained through the gas pressure difference meter 6, the gas flow value is adjusted to be 17.5mL/s in the standard state, the reading of the gas pressure difference meter 6 is read, and the real suction resistance value of the standard rod can be calculated.
In other embodiments, in order to ensure the stability of the surrounding environment, the device further comprises a constant temperature and humidity box body, and the standard rod, the positive pressure air pump, the pressure sensor, the three-way valve, the gas differential pressure meter, the gas flowmeter, the flow regulating valve and the pressure reducing valve are all arranged inside the constant temperature and humidity box body.
Example 2
As shown in fig. 2, a device for measuring a ventilation rate standard component for cigarettes by a positive pressure method comprises a ventilation rate standard rod 11, a clamp 12, a positive pressure air pump 1, a pressure sensor 8, a three-way valve 5, a gas differential pressure meter 6, a first gas flowmeter 9, a second gas flowmeter 10, a flow regulating valve 3 and a pressure reducing valve 2;
an outlet of the positive pressure air pump 1 is connected with an inlet of a pressure reducing valve 2, an outlet of the pressure reducing valve 2 is connected with an inlet of a flow regulating valve 3, an outlet of the flow regulating valve 3 is connected with an inlet of a first gas flowmeter 9, an outlet of the first gas flowmeter 9 is connected with a first interface of a three-way valve 5, a second interface of the three-way valve 5 is connected with a gas pressure difference meter 6, a third interface of the three-way valve 5 is connected with a gas circuit end of a clamp 12, the tail end of a ventilation rate standard rod 11 is clamped in the clamp 12, the head end of the ventilation rate standard rod 11 is communicated with the atmosphere, and a second gas flowmeter 10 is installed in a gas circuit of the clamp 12;
and a pressure sensor 8 is arranged at the outlet of the pressure reducing valve 2, and the pressure sensor 8 is associated with the pressure reducing valve 2 and the control end of the positive pressure gas pump 1 to stabilize the output gas pressure.
And the air path interfaces among the positive pressure air pump, the pressure reducing valve, the flow regulating valve, the ventilation rate standard rod, the three-way valve and the gas flowmeter are all communicated in a sealing way.
Be provided with the gas circuit in the side ventilation hole of intercommunication ventilation rate standard rod in the anchor clamps, the import size of gas circuit is the same in order to realize inclosed with the external diameter size of ventilation rate standard rod, the tail end of anchor clamps is located in the export of gas circuit, second gas flowmeter connects the gas circuit is used for measuring the gas flow who gets into through the side ventilation hole.
The working principle is as follows:
the positive pressure air pump 1 is started, the pressure reducing valve and the first pressure sensor 8 are matched, the working state of the positive pressure air pump and the opening degree of the pressure reducing valve are adjusted, a stable positive pressure air flow source is generated by control, then the flow size is adjusted through the flow adjusting valve 3, the experiment requirement of the ventilation rate standard rod is met, accurate inlet end flow is obtained through the first gas flowmeter 9, the gas pressure difference at the inlet end of the ventilation rate standard rod is obtained through the gas pressure difference meter 6, the gas flow value is adjusted to be 17.5mL/s in the standard state, the reading of the first gas flowmeter 9 and the reading of the second gas flowmeter 10 are read, and the ratio of the two is the data detected by the ventilation rate.
In other embodiments, in order to ensure a constant temperature and humidity environment, the device further comprises a constant temperature and humidity box body, and the standard rod, the positive pressure air pump, the pressure sensor, the three-way valve, the gas differential pressure meter, the gas flowmeter, the flow regulating valve and the pressure reducing valve are all arranged inside the constant temperature and humidity box body.
Due to the adoption of the positive pressure method, the adjustment range of the gas pressure is easier to widen and the widening difficulty is lower compared with the negative pressure method.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; 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 (8)
1. The utility model provides a device of cigarette resistance to smoking standard stick is measured to malleation method which characterized in that: the device comprises a resistance suction standard rod, a positive pressure air pump, a pressure sensor, a three-way valve, a gas differential pressure meter, a gas flowmeter, a flow regulating valve and a pressure reducing valve;
the outlet of the positive pressure gas pump is connected with the inlet of a pressure reducing valve, the outlet of the pressure reducing valve is connected with the inlet of a flow regulating valve, the outlet of the flow regulating valve is connected with the inlet of a gas flowmeter, the outlet of the gas flowmeter is connected with a first interface of a three-way valve, a second interface of the three-way valve is connected with the inlet of a resistance-absorbing standard rod, a third interface of the three-way valve is connected with a differential pressure gauge, and the other end of the resistance-absorbing standard rod is communicated with the atmosphere;
The pressure sensor is installed at the outlet of the pressure reducing valve, and the pressure sensor is associated with the pressure reducing valve and the control end of the positive pressure gas pump to stabilize the output gas pressure.
2. The device for measuring the smoke resistance standard rod for the cigarettes by the positive pressure method according to claim 1, is characterized in that: and the air path interfaces among the positive pressure air pump, the pressure reducing valve, the flow regulating valve, the resistance absorbing standard rod, the three-way valve and the gas flowmeter are all communicated in a sealing way.
3. The device for measuring the smoke resistance standard rod for the cigarettes by the positive pressure method according to claim 2, is characterized in that: the resistance suction standard rod is arranged on a special fixture.
4. The device for measuring the smoke resistance standard rod for the cigarettes by the positive pressure method according to claim 3, is characterized in that: still include the constant temperature and humidity box, standard stick, positive pressure air pump, pressure sensor, three-way valve, gas pressure differential meter, gas flowmeter, flow control valve and relief pressure valve all set up in inside the constant temperature and humidity box.
5. The utility model provides a device of ventilation rate standard component for cigarette is measured to malleation method which characterized in that: the device comprises a ventilation rate standard rod, a clamp, a positive pressure air pump, a pressure sensor, a three-way valve, a gas differential pressure meter, a first gas flowmeter, a second gas flowmeter, a flow regulating valve and a pressure reducing valve;
The outlet of the positive pressure gas pump is connected with the inlet of a pressure reducing valve, the outlet of the pressure reducing valve is connected with the inlet of a flow regulating valve, the outlet of the flow regulating valve is connected with the inlet of a first gas flowmeter, the outlet of the first gas flowmeter is connected with a first interface of a three-way valve, a second interface of the three-way valve is connected with a gas pressure difference meter, a third interface of the three-way valve is connected with a gas circuit end of a clamp, the tail end of the ventilation rate standard rod is clamped in the clamp, the head end of the ventilation rate standard rod is communicated with the atmosphere, and a second gas flowmeter is installed in a gas circuit of the clamp;
and a pressure sensor is arranged at an outlet of the pressure reducing valve and is associated with the pressure reducing valve and a control end of the positive pressure gas pump so as to stabilize the output gas pressure.
6. The device for measuring the ventilation rate standard component for the cigarette by the positive pressure method according to claim 5, wherein: and the air path interfaces among the positive pressure air pump, the pressure reducing valve, the flow regulating valve, the ventilation rate standard rod, the three-way valve and the gas flowmeter are all communicated in a sealing way.
7. The device for measuring the ventilation rate standard component for the cigarette by the positive pressure method according to claim 6, wherein: be provided with the gas circuit in the side ventilation hole of intercommunication ventilation rate standard rod in the anchor clamps, the import size of gas circuit is the same in order to realize inclosed with the external diameter size of ventilation rate standard rod, the tail end of anchor clamps is located in the export of gas circuit, second gas flowmeter connects the gas circuit is used for measuring the gas flow who gets into through the side ventilation hole.
8. The device for measuring the ventilation rate standard component for the cigarette by the positive pressure method according to claim 7, wherein: still include the constant temperature and humidity box, standard stick, positive pressure air pump, pressure sensor, three-way valve, gas pressure differential meter, gas flowmeter, flow control valve and relief pressure valve all set up in inside the constant temperature and humidity box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120687100.1U CN215297026U (en) | 2021-04-06 | 2021-04-06 | Device for measuring smoke resistance standard rod for cigarettes by positive pressure method and device for measuring ventilation rate standard part for cigarettes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120687100.1U CN215297026U (en) | 2021-04-06 | 2021-04-06 | Device for measuring smoke resistance standard rod for cigarettes by positive pressure method and device for measuring ventilation rate standard part for cigarettes |
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| Publication Number | Publication Date |
|---|---|
| CN215297026U true CN215297026U (en) | 2021-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120687100.1U Active CN215297026U (en) | 2021-04-06 | 2021-04-06 | Device for measuring smoke resistance standard rod for cigarettes by positive pressure method and device for measuring ventilation rate standard part for cigarettes |
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| Country | Link |
|---|---|
| CN (1) | CN215297026U (en) |
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2021
- 2021-04-06 CN CN202120687100.1U patent/CN215297026U/en active Active
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