What is the name of the hand dryer in the toilet? Device Features

prom.ua

If you are choosing a dryer for your establishment or you are interested in the correct name of a hand dryer in public toilets, then read on - the features of a hand dryer, the correct name, operating principle, components and types of hand dryers in public toilets.

What is a hand dryer? A toilet hand dryer is, as you might guess, an electrical device for drying your hands. Typically installed in public toilets. Dries the user's hands by blowing warm air over them, the air is taken from the room by a fan/s and heated by a heating element.

The official name of the hand dryer according to GOST 15047 78 is electric towel.

There are many types of electric towels, they are classified according to a variety of criteria, for example, by the method of activation: automatic (they have built-in special sensors that detect moving objects and turn on when they appear in the frame; automatic electric towels come with infrared and capacitive sensors) and push-button ( There is a special button to turn it on/off).

Operating principle and design of a hand dryer. The operating principle and design of the electric towel are similar to a household hair dryer:

There are one or more fans that draw air from the room into the dryer, where it is heated by a metal coil or other heating element, after which it is blown out by the fan onto the user's hands.

The design of the hand dryer is as follows:

Frame.There are two types of electric towel housing - open and closed. Open requires that the user bring his hands to a special air duct - warm air is blown out of it, blowing and drying his hands; moisture and drops that drip from your hands fall to the floor. The closed type design means that you put your hands inside the dryer - there is also a switch on sensor. Next, warm air also blows on the hands, but moisture and drops from the palms accumulate in a special tank, from where they are sent to the sewer. Closed-type electric towels are more thought out from a functional point of view.

Fan. The hand dryer is equipped with one or more fans to ensure faster drying. The main function of a fan/fans is to suck in/pull out air. The room air is drawn by a fan into the electric towel, where it is heated, and then blown out by the same or another fan. Drying hands in such devices with fans lasts from 10 to 30 seconds.

prom.ua

A heating element. The main component of an electric towel is a heating element, usually a heating coil made of a metal alloy. From the name it is clear that its function is heating, heating the air. Powering this element takes up to 90% of all the electricity used by the dryer. The remaining 10% goes to power the fan and indicators/LEDs.

Control system. Each electric towel is equipped with a control system, as a rule, it is an on/off unit, but in some models it additionally has an air heating control system (the temperature of the outlet air can be adjusted).To turn on the dryer, the manufacturer equips it with either a special button/key or an infrared/capacitive sensor.

Pros and cons of hand dryers in toilets. Recently, electric towels have become very popular; more and more entrepreneurs are installing them in their establishments. The main advantage of a hand dryer is that it is better than paper towels. Towels need bins that need to be emptied every once in a while, and you also need to constantly buy a new batch of towels. An electric towel is installed once and is powered by electricity, which is much cheaper in the long run. The benefits of electric hand dryers include cost-effectiveness, convenience, and efficiency.

Although the electric towel is convenient, practical and economical, it also has its drawbacks. Firstly, it dries out the skin. With frequent use, the skin dries out, which causes pain. Not recommended for people with high sensitivity to airflow or unsuitable skin type. Secondly, the dryer blows unsterilized air onto your hands - that is, you wash your hands to get rid of bacteria, dirt or unpleasant odors, and during drying you reintroduce microorganisms.

Regarding the latter, it must be said that there are hand dryers with an air sterilization/disinfection function. But such models are not popular and are extremely rare due to their high cost.