A climatic device is used to increase air humidity. The devices are built into complex air conditioning, ventilation systems or placed in the room. The reasons why steam does not come out of the humidifier when switched on differ depending on the type of unit. The electric humidifier can additionally work as a cooler or heater, purifier, fragrance.
Varieties of humidifiers
Depending on the method of humidification, there are nozzle devices - in them, liquid is dispersed from the holes under the action of air pressure. In rotary types, water splashes into the surrounding area when the disc is turned. Film types contain a wet plate in the structure, the air receives moisture upon contact with it. Porous types naturally evaporate water from a loose surface, and in boiling types, water molecules are separated at a high temperature of the working fluid.
Varieties of sprayers:
- traditional;
- steam;
- ultrasonic;
- spray.
Appliances consume little electricity, except for the heating type. The devices do not humidify the atmosphere more than the prescribed level. Usually, you need to pour water to get started.
Traditional
In cold installations, the air is driven by a fan through a wet filter, then the humidified jets enter the room space. Performance is determined by relative humidity and ambient temperature. The intensity of evaporation increases with decreasing air humidity and accelerates in heat.
Instrument characteristics:
- evaporate 3.5 - 17.0 l / day;
- consume 5 - 60 W / h.
The air washer is a modified version of the traditional type and contains a rotating drum with hydrophilic discs. When rotating, the lower blades are immersed in the liquid, and when moving to the upper position, they are blown by a fan. The device is filled with plain tap water without an unpleasant smell, sometimes aromatic oils are specially added.
Steam
To activate evaporation, the water is heated to a boil. The devices are equipped with a hydrostat (moisture detector), which interrupts the operation of the heating element when a predetermined value is reached. Boiling gives rise to an intense separation of water molecules, therefore, without a sensor, air humidity can exceed the norm.
Steam Plants Advantages:
- fast air humidification;
- evaporating, the steam is cleared of non-volatile additives;
- the inclusion of aromatic oil in the liquid gives a pleasant smell.
The disadvantages include the high power of the device (300 - 600 W / h), but the disadvantage is covered by periodic rather than constant switching on. The humidifier processes 8 - 16 l / day.
Ultrasonic
An effective humidifier creates a mist by lifting water molecules from the surface under the influence of 5 MHz ultrasound from the piezo emitter. Wet particles are carried away by the natural movement of currents or the acceleration is provided by a fan. Vapors contain salt and microorganisms.Some of them remain on objects after drying. Hardness salts settle on the elements of the device and shorten the service life.
Ultrasonic evaporators do not raise the temperature above + 20 ° С, they work silently. There are models with built-in heating elements for quick humidification, then the device consumes more power. The installation uses 7 - 13 l / day. Without a heater, the power is at the level of 40 - 50 W / h, and with a heating element, the humidifier takes over 125 - 200 W / h.
Spraying
The nozzle type works by high pressure. The water is supplied at a pressure of 30 - 85 bar and the particles become smaller with increasing pressure. The nozzles are placed in the room or placed in the opening of the ventilation duct. The latter method is used in large halls, lobbies. In household appliances, water droplets dissolve in the volume of the room, but droplet traps are used on an industrial scale.
Filters are placed in front of the nozzles and ionization is done, since all water impurities settle on neighboring objects. The units operate at low power and are characterized by high productivity.
Some models of spray humidifiers are connected to the water supply and do not add liquid. Built-in views are difficult to assemble and expensive. Due to the intense evaporation, the room temperature drops.
How the devices work
Appliances increase the relative humidity. For a residential building, this figure is 30 - 45% in winter and increases to 60% in summer. The principle of operation consists in lifting molecules from the surface of a liquid and spraying them in the volume of a room in various ways. Waterlogging has a negative effect on the human body and animals, leads to damage to objects, so the devices are designed in such a way that they cannot exceed the standard threshold.
The rate of moisture transfer depends on the temperature in the room, the area to be evaporated and the initial content of water droplets in the atmosphere. The combination of the first conditions is important for the intensification of work.
The main reasons why steam does not come from a humidifier
Causes of breakdowns in humidifiers:
- Water penetration into mechanical or electrical components occurs when cleaning the unit. The problem is solved in the workshop so that the microelectronics do not fail.
- Steam does not come out of the humidifier, if the generator is not working, the contact plates are oxidized, the fan is broken. In ultrasonic models, the accident occurs due to damage to the membrane.
- The wear of the piezoelectric element will also cause the problem. This is evidenced by the appearance of a stream of steam and its rapid extinction.
In the event of a malfunction, the electricity connection (indicator glow) and the presence of liquid in a special compartment are checked.
For a cold-type apparatus
In the devices, the degree of wear of the filters is checked; if necessary, the elements are changed. If the engine breaks down, repair in a workshop and replacement of the engine is required. Sometimes the roar of the engine is heard, but the turbine blades do not move - you need to try to slightly turn them by hand. Stiff mobility indicates a layering of hardness salts, which must be removed from parts of the disassembled mechanism.
When the fan is not running, steam will escape from the appliance, but immediately go down. The reason for the stop is damage to the electric wire outside or the interconnection network inside.
For ultrasound machine
The main parts in such devices are the membrane and the piezoelectric element. The second part is not repaired, the new one is inexpensive. The diffuser (membrane) generates vapor from the liquid due to high frequency vibrations.Cleaning the membrane is recommended after 3 - 4 fillings with water, while the container is washed with the addition of detergent or liquid soap.
Do not use a mechanical method to remove plaque with metal objects.
Neglecting regular cleaning will result in poor performance or shutdown. Sometimes a mechanism breaks down that imparts vibration to the membrane. If cleaning does not help, the web is replaced with the feeder in the workshop.
For steam machine
In such devices, the heater fails, while the water stops heating and boiling. The heating element is not repaired and is replaced with a new one.
Steam does not leave the unit due to:
- breakage of blades;
- engine problems;
- violation of the integrity of the wiring.
Before removing the tank, the liquid is drained, the remaining water is soaked with a rag. Unscrew the bolts to remove the cover. If the design includes a hygrometer, care must be taken not to damage the contacts. The disassembled device is tested by connecting to the network for a malfunction of the fan or cooler. A cold transistor indicates an inoperative generator.
For spray apparatus
A master is invited to repair the built-in sprayer in the ventilation duct, since self-intervention is not recommended. You can clean the parts from a layer of hard salt with your own hands, but the replacement of units is carried out by a specialist.
Operating rules
The instructions are followed to prevent malfunctions. The liquid is poured only into the designated opening to increase the service life without breakage. Distilled water or tap water is acceptable if indicated in the instructions for use.
Terms of use:
- if the device is not in use, the water must be drained before the next time;
- you cannot use any other product other than water;
- the device does not belong to medical inhalers, therefore, you must not inhale the vapor, bending low;
- the container is filled up to the set mark and no more;
- disassembly of the installation is carried out with the plug disconnected from the network.
It is not recommended to place the humidifier close to household appliances and furniture in order to avoid damage to them. Do not cover the device.
