Aerosol supply and regulation system and application thereof in evaluation of electronic cigarette liquid inhalation exposure safety
A technology for e-cigarette smoke liquid and adjustment system, which is applied in the direction of material inspection products, measuring devices, instruments, etc., can solve the problems of low aerosol concentration, limited aerosol concentration, and single concentration, so as to improve controllability and save research cost effect
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Embodiment 1
[0032] This embodiment specifically introduces the structure of the aerosol supply and adjustment system of the present invention.
[0033] The aerosol supply and adjustment system includes an electronic cigarette liquid delivery unit, a thermal aerosol generator 5, a main controller 1, and a dilution gas flow meter 4:
[0034] Wherein, the e-cigarette liquid delivery unit includes a peristaltic infusion pump 2, a liquid delivery pipe 2a, and a liquid reservoir 3, and the peristaltic infusion pump 2 and the liquid reservoir 3 are connected through pipelines.
[0035] The air inlet of the thermal aerosol generator 5 is connected with the dilution gas flow meter 4 through the aerosol dilution gas pipeline 4b, which can adjust the amount of dilution gas entering the thermal aerosol generator 5; the inlet of the thermal aerosol generator The liquid port is connected to the peristaltic infusion pump 2 through the e-cigarette liquid delivery pipe 2a; the main controller 1 is electri...
Embodiment 2
[0042] This embodiment provides an operation method for applying the aerosol supply and regulation system in Embodiment 1 to the safety evaluation of e-cigarette liquid inhalation exposure, including the following steps:
[0043] Step 1, assemble the system: fix the e-cigarette liquid delivery tube 2a on the peristaltic infusion pump 2, and connect the two ends of the high-temperature pipeline inlet of the liquid reservoir 3 and the thermal aerosol generator 5 respectively; connect the thermal aerosol generator 5 The two ports of the heating rod and the thermocouple are connected to the heating output port and the heating temperature feedback port of the main controller 1; the dilution gas flowmeter 4 is connected to the thermal aerosol generator 5 through a pipeline.
[0044] Step 2, store the e-cigarette liquid in the liquid reservoir 3, turn on the power of the peristaltic infusion pump 2, and set the transmission rate of the peristaltic infusion pump 2.
[0045]Step 3, ope...
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