It is a kind of environmentally friendly and pollution-free high-efficiency killing tool, which is developed by using mosquitoes to attract light, move with airflow, be sensitive to temperature, like to gather together, especially the habit of chasing carbon dioxide breath and searching for sex pheromones. It is a relatively environmentally friendly way to kill mosquitoes without using any chemical substances.

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Principle of mosquito

Carbon dioxide exhaled by humans has been scientifically proven to be attractive to mosquitoes Mosquito killer, it can produce the light, heat, carbon dioxide, water vapor, flowing air that the mosquito likes when it works. It can simulate human respiration to lure mosquitoes, attract mosquitoes from your side, fall into the mosquito cyclone, make it dehydrated and air-dried and die. Photo catalysts can also purify the air and sterilize it.

What is the working principle of Bath heater PCB?

Bath bully classification

Bath bully is the preferred heating device in many homes (also known in the industry as a multi-purpose heater).According to its heating principle, the bath bully sold in the market can be divided into the following four types:

Bulb series bath blaster: the special infrared quartz heating bulb as the heat source, through direct radiation heating indoor air, there is no need for preheating, can achieve a wide range of heating effect in an instant. Its functions are heating, ventilation and lighting. 2 or 4 275W hard quartz explosion-proof bulbs are used for heating. The effect is concentrated and strong. Two-in-one bath bully is specially designed for installed ventilation fans or low bathrooms, old residential bathrooms and features easy installation.

PTC(a ceramic heating element) series bath heater: PTC ceramic heating element as the heat source, with fast heating, high thermal efficiency, no luminescence, no flame, long service life and other advantages, at the same time with double insurance function, very safe and reliable.

Double warm current series bath heater: use far infrared radiation heating bulb and PTC ceramic heating element to combine heating, faster heating, higher thermal efficiency.

Far infrared thermal wave bath: also named as "sunshine physiotherapy bath", it simulates the principle of sunlight through a photo catalytic coating composition and a radiation heating system with the composition, which USES electrical energy to convert into heat energy, and then the heat energy is converted into far infrared light through the composition. The whole system can achieve far infrared radiation heating, deodorization and antibacterial properties. It has the advantages of high somatosensory temperature and no noise, physiotherapy, and promoting blood circulation. Full alloy enclosure, no glass breakage risk; Heating surface no visible light, filter near infrared ray, no harm to eyes, and long service life, safe and reliable.

Principle of exhaust fan

The exhaust fan is a kind of axial flow fan.It is mainly used in negative pressure ventilation and cooling engineering and is called industrial exhaust fan.The exhaust fan has the characteristics of super-large duct, super-large blade diameter, super-large exhaust volume, ultra-low energy consumption, low speed and low noise.

Use together with cooling water curtain can solve the problem of ventilation and cooling at one stroke.The operation of the exhaust fan will create a negative pressure environment in the room.If the cooling water curtain is installed on the other side of the exhaust fan outlet wall, the exhaust fan will discharge the indoor hot air out of the room at the same time, it will also enter the room through the cooling water curtain containing rich water vapor into the room, so as to achieve the effect of ventilation and cooling.

The process of the exhaust fan expelling air to the outside will cause the indoor air pressure drop, the indoor air becomes thinner and forms a negative pressure area, the air will flow into the room due to the pressure difference compensation.In the practical application of industrial workshop, the exhaust fan is usually centrally installed on one side of the workshop, and the intake is on the other side of the workshop. The air from the intake to the exhaust fan forms a convective blow.

What is the working principle of Cooling principle?

The exhaust fan can quickly expel the stuffy air in the room, and inhale the air on the other side of the outdoor into the room, reaching a temperature equal to that of the outside, so as not to increase the temperature in the workshop.The flow of air takes heat away from the body. The flow of air accelerates the evaporation of sweat and absorbs heat, making the body feel cool, as cool as the natural wind.

During this process, the Windows and doors close to the exhaust fan remain closed, forcing air to compensate for the flow into the workshop through the Windows and doors on the intake side.The air flows into the workshop through the intake, flows through the workshop, and is discharged by the exhaust fan in an orderly manner.Ventilation thoroughly, efficient, ventilation rate can be up to 99%.Through specific engineering design, according to the needs of the design of air exchange speed and wind speed, any high heat, harmful gases, dust smoke can be quickly discharged from the workshop, any poor ventilation problems can be solved once and for all.Ventilation can be achieved in a few seconds from turning on the fan.