When I was a child, mosquito repellent relied mainly on the fan, mosquito net and mosquito coil. Before going to bed, put a plate of mosquito coils, use the fan to fan out the mosquitoes in all corners of the mosquito net, and then quickly turn off the mosquito net, you can basically sleep for a night. Now much more convenient, electric mosquito liquid bottle it can get. Let's take a look at the principle of electric mosquito liquid heater.
What is the principle of electric mosquito liquid heater?
The electric liquid mosquito coil is composed of mosquito repellent liquid and electric heater like the electric mosquito coil. When the electric heater is connected to the power source, the PTCR element starts to heat up and then relies on the temperature adjustment function of the PTCR element itself to make it The temperature is kept within a certain range. The heat generated by the PTCR element is transferred to the liquid volatile core by thermal radiation, so that the liquid sucked from the liquid medicine bottle to the upper end of the mandrel by the capillary wicking action increases the volatilization speed under the heat radiation heating, and the space insecticidal effect is effective. When the ingredients reach a certain concentration, they will drive away, paralyze, knock down and kill the mosquitoes.
The inner wall temperature of the intermediate metal sleeve of the electrothermal liquid mosquito coil heating device is between 120-130 ° C, and the temperature of the volatile core is suitable in the range of 90-100 ° C.
At present, the special solution of 1% (m/m) propythrin is used for the liquid medicine, 45ml per bottle, about 20-30 days (8-10 hours per day), and the indoor effective range is about 15 square meters. The liquid is compounded with high-efficiency and safe pyrethroids and flavors, and the volatile substances are non-toxic and harmless to the human body and food. The electric liquid mosquito coil is convenient and safe to use, and the mosquito repellent effect is stable. It is not necessary to change the new mosquito tablets every day like the electric mosquito repellent tablets, and the bottle can be used for 30-45 days. However, since the electric liquid liquid mosquito is transported by the mandrel, the upper end of the mandrel is heated, thereby volatilizing the medicament, and the boiling point and vapor pressure of each component in the medicament are inconsistent, and the substance with high boiling point and low vapor pressure gradually accumulates in the heating section of the mandrel. The phenomenon of "blocking" of the mandrel is caused, so that the components in the medicament cannot be synchronously transported and simultaneously volatilized. Therefore, the electrothermal liquid mosquito coil should consider the influence of the boiling point of each component and the vapor pressure on the plug of the mandrel. It takes a lot of experimentation to get a good pharmaceutical formula, and the formula is difficult to adjust, but it is easier to adapt to long-term use of single-agent mosquitoes. The selection of flavors is also very important, because most of the ingredients in the essence are complex and cannot be dissolved well in aliphatic hydrocarbons. Improper selection may cause blockage of the mandrel, and may also cause some active ingredients to precipitate and cause loss. And affect the efficacy.
The principle of electric mosquito-repellent liquid heater is these. The electric mosquito-repellent liquid is very simple and convenient to use, and the mosquito repellent effect is very good. With it, you no longer have to worry about sleeping.
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