Outdoor air conditioners for mist cooling of terraces. Fog cooling. Mist cooling systems. Cooling of outdoor units of air conditioning systems

A fogger is a system that sprays water under high pressure. It provides an increase in humidity and a decrease in air temperature, which is important for any greenhouse in summer heat. You can purchase a fogger or try to make it yourself. Step-by-step instructions for assembling the atomizer are in this article and in a unique video.

Importance of fogger for plants

Natural example natural conditioner– waterfall. The same principle is inherent in fogging systems. High-pressure water is turned into jets of mist that remove heat from the air.

In industrial greenhouses and winter gardens With exotic plants Foggers have been used for a long time. Systems are also popular in the field landscape design and landscaping of the site. The clouds of fog look gorgeous all around artificial reservoirs or alpine slides. And equipping the veranda with such a system will allow you to calmly enjoy your holiday in any heat.

Many summer residents believe that foggers are an unnecessary luxury for small farm greenhouses, because cucumbers and tomatoes can be grown without them. However, there are a number of advantages to using it that are quite difficult to refuse.

1. Thanks to the installation, a microclimate appears in the greenhouse, suitable for exotic and moisture-loving plants. For example, cucumbers love high humidity.
2. Seedlings develop much faster, because they absorb moisture not only with their roots, but also with their leaves.
3. It has been noticed that flowers when grown with a fogger acquire brighter colors.
4. Through the installation you can spray plants efficiently and economically water-soluble fertilizers and means that protect against diseases and pests.
5. If you turn on the system on a hot summer day, the temperature in the greenhouse will drop by about 15 °C. Therefore, the device is also called a water conditioner.

The disadvantage of the system is that it can be used mainly in the summer. In winter - only in well-heated rooms.

How does a fogger work?

An industrial fogger works using special devices, sprinklers. Thanks to them, water is sprayed into droplets measuring 5-10 micrometers. This is thinner than a human hair, whose thickness is 80 microns. These tiny droplets instantly evaporate, cooling the air and increasing humidity.

Attention! The water spray device is most effective at a temperature of 30-40 °C.

Standard fog systems are made from:

• pump;
• nozzles;
• control panels. It in turn consists of a hygrometer, a controller and a control unit.

All kinds of foggers and their components can be found in online stores. The choice is huge; for example, it is known that there are about 20 thousand varieties of nozzles.

The average price of a fogger (part of a system) with four nozzles is 110 rubles. And herself automatic system spraying can cost from 30 to 100 thousand rubles. depending on power and configuration.

The innovation has not yet become widespread among summer residents. Judging by the reviews, only a few people use it. The more valuable step-by-step instruction on how to make a fogger with your own hands.

How to assemble a fogger for a greenhouse

Advice. The pipe with fittings must be mounted at a height of at least 2 m.

There are no particular difficulties in assembling your own fogging system. It works on the same principle as devices industrial production, simply constructed from more affordable components.

You will need:

• thin tube with a diameter of 5-7 mm. Its length should be equal to the area of ​​the greenhouse;
• special lock that controls pressure;
• about 30 fittings (depending on the size of the greenhouse);
• there are as many nozzles as there are fittings;
• filter;
• pump.

Action steps:

1. First you need to assemble the line with the injectors.
2. The nozzles must be installed along the length of the tube at a distance of 80 cm from each other.
3. Attach a lock to the pipe that compresses it more strongly if the pressure in the system increases.
4. Attach a nozzle to each fitting.
5. Secure the main pipe with fittings around the perimeter of the greenhouse at ceiling height. In corners you can simply bend the tube or use corner fittings.
6. Place a cap at the end of the outermost branch.
7. A fine filter is installed in the water supply.
8. Then the pump is connected high pressure. And there is a ready-made wiring for it. The system is ready.

You can purchase a ready-made fogger for the greenhouse

A purchased or home-made fogger consumes a minimum of water and electricity. At the same time, he is able to provide greenhouse plants the humidity they need and lower the air temperature to the optimum.

Fogging system in a greenhouse - video

Using the system mist cooling You can provide pleasant coolness on the terrace or in the gazebo, and at the same time ward off annoying insects. On hot days summer days these questions become especially relevant

Mist cooling is the only technology available today that can lower temperatures by outdoors. Such systems are actively used in industry; they can be found in hotels, outdoor cafes and restaurants. And for a simple summer resident, the fog will give freshness and comfort where it is impossible to install a regular air conditioner - in a gazebo, on a barbecue area, etc.

Cold mist can be useful in the garden, both outdoors and in greenhouses and conservatories. It is used to protect plants that do not tolerate heat well.

Fog cooling circuit

Fog cooling lowers the air temperature by 5-15°C. How? The “heart” of the system is a pump that forces water under pressure of 70 bar (7000 kPa) through nozzles with tiny holes, creating a cloud of droplets no larger than 10 microns in size. They immediately begin to evaporate, and it is this process (transition from liquid state into gas) takes away from air thermal energy. Moreover, the drier the air, the more moisture it picks up, and the more it cools. It's no surprise that mist cooling systems are particularly popular in arid regions.

The system is modular, mobile and compact; it can be installed almost anywhere, and you can do it yourself. With the help of special fasteners, usually included in the kit, many nozzles can be easily positioned over any area, creating a uniform, efficient curtain of tiny droplets of water. Moreover, the market offers pumpless mist cooling kits that can be connected to a regular garden irrigation system.

Another advantage of this technology is that it is inexpensive to operate. Thus, it takes only 2.5-10 W per hour to evaporate 1 kg of water (depending on the characteristics of the specific air cooling system).

With the help of fog cooling, you can not only lower the air temperature, but also purify it, and also drive away insects

In addition to the heat, summer residents are often bothered by dust, and cold fog effectively combats this problem. Tiny droplets of water bind dust particles, weighing them down and causing them to sink down instead of swirling around.

But that's not all. If you add deodorizing agents to the water, you can use an evaporative cooling system to purify the air, getting rid of unpleasant odors.

And if you add repellents to the water, mosquitoes, wasps, bees and other annoying insects will stop bothering vacationers. It is important that the health of people and pets will not be harmed in the slightest.

Having completed the review of practical functions, we will also mention aesthetic ones. With the help of cold fog, you can achieve various visual effects that will turn the usual garden plot to a fairyland. Nozzles located under different angles, create curtains, balls, clouds and other figures. All components of the system - pipes, fittings, etc. - can be hidden in the ground, under terraced flooring, mounted under eaves overhangs or attach to tensioned cables.

Universal remedy

In the water, well known to all of us, lies a large number of energy, and if you extract it skillfully, you can get significant benefits. When water changes from its liquid state to its gaseous state, heat is absorbed. And the more it needs to be taken, the large quantity liquids must be evaporated.

Air cooling and humidification special systems widely used to create a pleasant coolness on sports grounds, in restaurants, etc., humidifying the air in various work areas, eliminating odors, reducing the risk of fire, etc. Fogging is used in dachas, in livestock and crop production, and in various industries. It perfectly allows not only to create the necessary microclimate, but also to control it precisely in those areas where people work and where it is necessary to observe whole line requirements for ensuring work safety. With temperatures in the workshops, sometimes reaching +40 °C, workplaces are cooled. Despite the fact that all this requires the use of negligible energy, the effect obtained from cooling is impressive.

Artificial fog formation allows you to avoid overheating of working surfaces at low financial costs. Partial (or along the entire perimeter) installation of such devices in a residential complex located along a dirt road or a busy highway can reduce the amount of exhaust gases and dust. These systems literally allow you to breathe easily and freely.

Insufficient ambient air humidity or changes in its indicators, for example, in a printing house, also lead to changes linear dimensions cardboard and paper, as well as binding materials. As a result, there is a discrepancy in colors, inaccuracy during folding and embossing, cutting and gluing, and other printing operations. Moisturizing can successfully avoid all these troubles.

The economic performance of livestock farms depends on the health of the animals and their well-being. Artificial fog, widely used in conjunction with ventilation systems, creates more comfortable conditions and helps to increase the economic effect.

When storing herbs, vegetables and fruits, use special equipment helps to increase their shelf life and allows you to get higher income.

The ability to add special reagents to the water sprayed by the device using dispensers helps to successfully fight rodents and insects.

In winter, inside the suburban wooden house when actively functioning heating system, air exchange slows down. Installing fog equipment allows you to soften and humidify the air. Fogging systems help control midges, are also capable of suppressing the development of various pathogenic organisms, they are effective in eliminating odors generated during solid waste treatment, etc.

Dust, which has become a sad inevitability in almost all warehouses, is eliminated during fine spraying. On paint and varnish production Using such systems, the amount of harmful volatile compounds can be significantly reduced.

Conventional air conditioners cannot be compared with the effect of using foggers, since air conditioners only cool indoor spaces, and all attempts to operate them outdoors are doomed to failure.

Fogging systems work by producing water droplets small size, which evaporate very quickly. When the surrounding air becomes saturated with moisture, fog appears.

Simplicity and accessibility

Fogging systems work by producing small droplets of water that evaporate very quickly. When the surrounding air becomes saturated with moisture, fog appears. Depending on the settings, it can be light, almost invisible, or, on the contrary, swirling and thick. Its concentration directly depends on the size of the droplets formed: the larger they are, the denser the fog curtain created.

It is known that in order for the evaporation of water to begin, it is necessary to use a fairly large amount of energy - up to 600 cal of heat per 1 g of liquid, and the “disappearing” drop takes some of the heat from the air. This is how it cools and moisturizes. The efficiency of the system is affected by humidity and temperature indoors or outdoors. The system can create and maintain a given relative humidity air. Its optimal indicator, necessary for normal human life, is in the range of 40-55%.

A special engineering installation is used to produce artificial fog. The equipment set includes a high-pressure pipeline, a pump, special nozzles, a water treatment system, as well as automation.

The plunger pump or units developed on its basis can rightfully be called the “heart” of the entire system. Operating pressure system at the moment the pump is turned on - 60-80 atm. If it is less, the valves will not be able to open. One such pump can simultaneously service several nozzles on the line.

Today the market offers many pumping units used in fogging systems. Their main difference is the rate of pumped liquid per minute (from 0.6 to 25 l). When servicing a large area, more efficient devices are installed, but in everyday life they are quite effective and simple models allowing pumping from 0.6 to 1 liter of liquid per minute. The dimensions of the installations are quite large.

IN country house they are mounted in a special technical room, where, as a rule, the engineering equipment. It is important to remember that the determining conditions for installing the pump are positive air temperature and the ability to connect the device to the electrical network and water supply. Pumping units can be additionally equipped with an “automatic” mode timer.

Injectors

These devices are classified according to one indicator - the diameter of the outlet (from 0.15 to 0.5 mm). This parameter determines the nature of fogging depending on the size of the water droplet. In open and closed spaces, nozzles with various sizes outlet. For example, if it is necessary to humidify residential premises, nozzles with an opening of 0.15 mm should be installed, which produce droplets ranging from 1.2 to 37.9 microns. Such nozzles are ideal for use in residential areas where very little water flow and minimal humidity are required, as well as complete evaporation. Nozzles with outlet sizes from 0.2 to 0.5 mm are installed in systems for cooling and humidifying large open spaces. They can be a garden, greenhouses, verandas, etc., where air exchange is more intense and the evaporation of droplets is more efficient.

When installing household systems fogging systems, as a rule, use copper nozzles with a stainless steel coating, and in winter gardens, greenhouses or conservatories, where it is intended to use a fogging system and for spraying fertilizers, industrial nozzles made of stainless steel are installed, which last much longer and can be used in aggressive conditions. environments

Small nozzle outlet made using laser technology, requires the use of demineralized liquid, otherwise the hole will inevitably become clogged with salts and impurities, its failure, and a general malfunction of the installation.

Of course, the filter will not get rid of calcium salts that form an unpleasant white coating on furniture and interior items. Therefore, when humidifying residential premises, you need to install reverse osmosis. It will reduce the content of dissolved salts. The type of filter is selected after analyzing the composition of the water supplied to the pump.

However, practice shows that for uninterrupted operation it is necessary to install at least one filter that retains mechanical impurities.

Pipeline

For optimal organization of the operation of the high-pressure pipeline system, nylon or copper tubes with a stainless coating and a diameter of %". Although metal is more expensive than polymer, it is worth it. When supplied with water under high pressure, it will not bend or deform, like nylon, for example. The risk of a defect in a high-pressure metal pipeline is minimal, therefore, its use in indoor fogging systems would be preferable to Nylon. the best option for a long pipeline on the street.

A wide selection of fittings and connectors allows you to technically solve any installation problem. The fittings can withstand the pressure that is pumped by any pumping stations to produce fog, regardless of their power.

Automation

Basically, the systems are equipped automatic regulation, which allows minimal water consumption and creates optimal microclimate. She can turn it on and off, for example, every 10 seconds, which is physically impossible to do manually.

Such a system is controlled using a timer or controller, in which the program independently turns the pump on or off at specified intervals, and also depending on the actual air humidity and temperature. The operating mode of the system can be integrated into the so-called system “ smart home", while fogging receives advanced control capabilities.

It should be noted that full set equipment allows you to solve any problem - even posed by the most demanding client. The standard system installation scheme boils down to installing two high-pressure pipeline lines. The first is installed in the house, the second is installed on the street. In winter, only one first line works, and in summer the second line is also turned on.

The small nozzle exit hole, manufactured using laser technology, requires the use of demineralized fluid. But filtration will not get rid of calcium salts that form an unpleasant white coating on furniture and interior items. Therefore, when humidifying residential premises, you need to install reverse osmosis

To operate this scheme, only one pump is needed. Assembling the pipeline is simple, and it is quite possible to install the system yourself. Before the attack winter period the street pipeline is cleared of water, purged and, as a rule, dismantled.

In the spring it is collected again. It is necessary to periodically replace the cartridge in the filter, and change the oil in the pump itself once every few months. No other additional maintenance is required for the fogging system. It is very important that these devices are completely safe for humans and the environment. The system pump is located in a vandal-proof housing. It is equipped with automation, and when the water supply stops, it automatically turns off. Anti-drip valves do not allow the water remaining in the pipes after a shutdown to escape from the nozzle.

A method of cooling the environment called fog cooling is gaining popularity. And this is not without reason - it is an economical and environmentally friendly option for reducing temperatures. How to cool outdoor areas is very actual question not only for owners country houses and summer cafes, but also for various factories and enterprises. Let us immediately remind you that this cooling method is absolutely safe and environmentally friendly. Since the system uses ordinary water, and evaporation does not provide a humidifying effect, in fact, you only feel pleasant coolness.

Let's take a closer look at the fog cooling system.

What does a mist cooling system consist of?

The system consists of the following components:

1. High pressure pump, which is capable of pressurizing the fog system from 70 to 100 Bar. This is the basis of the system, because Since this is the only mechanical part of the system, the pump must be good quality, because its failure will make it impossible to use the entire system.

2. Tubes through which water moves in the system. They are metal or nylon. These tubes are connected to each other using special self-clamping fittings. This method of installing lines is very practical and allows you to install a fog cooling system on almost any object.

3. Injectors. High precision fog nozzles. It is through them that water acquires a gaseous state. They allow the system to produce fine (from 3 to 7 microns) water mist, which cools the surrounding air.

Read more about equipment for fog systems in the corresponding section.

How does a mist cooling system work?

The pump supplies water through tubes to the nozzles and they, in turn, spray mist over (or nearby) the cooled object. The fog cooling system is based on the process of liquid evaporation. When crushed water enters the atmosphere, it gives the effect of instant evaporation, thereby taking away the temperature from the environment. It is worth noting that humidity is not felt. Those. the system simply cools the air. If (in the case of irrigation) you need to humidify the space indoors or outdoors, then nozzles with a larger sprayer are used.

How much can a space be cooled with such a system?

It all depends on the temperature around the object being cooled and the air humidity. If it’s dry and hot, then the system can cool the air by 15 degrees, but if environment has high humidity and relative coolness, then the use of fog systems will give insignificant results. Remember, the principle of operation of the system is evaporation and heat extraction. Those. if there is nowhere to evaporate, and there is nowhere to take heat, then the system will show minimal results. It's like morning fog. In warm areas it brings coolness, but near the river it is almost not noticeable. Therefore, before installing systems, we always analyze the object in detail and take this into account when designing. About successful and effective application fog cooling systems, read on.

Where can this cooling method be used?

Fog cooling can be used almost anywhere. Let's look at the most traditional options application of the system.

Fog cooling of open areas, verandas, terraces and gazebos.

The most popular application of the system. Since cooling the space in an outdoor cafe or gazebo with air conditioning systems is expensive and ineffective, fog cooling has gained immense popularity. Moreover, it is possible to cool large areas and stadiums (in Japan, such a system was implemented and showed excellent results at a football stadium). If you are the owner of a cafe with a summer terrace, or want to create a pleasant coolness on the terrace, then this system is for you.

Cooling of outdoor units of air conditioning systems

Air conditioning systems are often used in businesses and buildings. The principle of their work is clear to everyone - they take it from the street warm air, which, passing through the system, is cooled and supplied to the room. If it is 38 degrees outside, and the system needs to cool the room to 23 degrees, then it turns out that the system needs to cool the air by 15 degrees. But if you install a pre-cooling system in front of the air conditioner (in our case, it’s a fog system), then the air that the air conditioner will suck in will no longer be 38 degrees, but, let’s say, 30. This means the air conditioner will need to cool the air not by 15 degrees, but by 7 , which means 2 times less electricity will be spent, which leads to saving money. And there are many examples of such use of fog cooling systems.

Microclimate of display cases, counters and storages

Fish, vegetables and other perishable products in summer period very difficult to store. We all understand perfectly well that in the heat food can spoil very quickly. Especially when it comes to display cases - after all, the product must be visible and the buyer must have access to it. And here the fog system will also help us. The system can be carefully and discreetly installed along the display window, and in the cool haze the product will look even more appetizing. This also applies to warehouses, storage facilities, sorting points and other places where it is necessary to create a certain climate for storing food.

Cooling of farms, cattle and, pig and poultry farms

In the livestock industry, it is very important that animals and poultry are healthy and grow in a favorable climate. Not only the quality of meat, eggs and other products of this industry, but also the livestock depends on this. Animals while in unfavorable conditions(just like people) feel bad. As a result, they lose weight, their milk yield decreases, etc. Mist cooling systems have become a solution for such enterprises, because the system not only lowers the temperature, but also eliminates odors and promotes dust suppression. And the cost of fogging systems is significantly lower than standard systems conditioning.

We can talk endlessly about the use of fog cooling systems. Their use is possible in almost all industries and areas of human activity. These systems have shown excellent results in both efficiency and energy consumption.

I still have questions about the fog cooling system

Just come to us, to the UKRSPETSSBYT company or call our consultants (contacts at the bottom of the page) and we will answer all your questions. We have been working in this direction for more than 17 years. Our specialists will conduct a detailed analysis of your property and do everything necessary calculations and estimates, design the system, supply equipment and configure all parameters. You will receive a ready-made, working and effective system fog cooling. Also look at photographs and videos of our systems - they will more clearly show the operation of the system and its application.

Installation of a fogging system in a private garden or farming helps solve several main tasks:

1. Maintaining the required humidity.

2. Maintaining the set temperature.

3. Foliar feeding.

1. Maintain humidity

For optimal growth and fruiting of many crops (tomatoes, cucumbers, mushrooms, many others), it is recommended to maintain a certain level of humidity. Maintaining the required humidity increases yield and minimizes the risk of disease development.

However, in conditions closed ground(in a greenhouse, for example) the required humidity will not be maintained by itself during the season, much less all year round. Depending on the time of year, weather, solar activity, watering schedule and many other factors, humidity will vary widely.

This means that the task of the prudent owner is to take control of humidity into his own hands.

From high humidity can be eliminated with the help of ventilation, but low humidity can only be saved with the help of installation taman formation systems, which, by spraying water in the form of fog, increases the humidity to the specified level.

2. Temperature maintenance

In summer, due to solar activity, the temperature outside can reach high values, and in enclosed spaces even higher. Heat can harm crop yields both during the flowering period and during the growing season and fruiting.

It is possible and even necessary to lower the temperature in the greenhouse by installing shading and ventilation systems, but in addition to them, fogging system. The temperature reduction effect is achieved through the evaporation of atomized fine water.

3. Foliar feeding

The fogging system can be used for foliar feeding and plant protection: spraying fertilizers, microelements, protective solutions.

There are two types of fogging:

• with high blood pressure,
• with low pressure

I. High pressure fogging

It is distinguished by very high pressure in the main line with foggers - above 20 atmospheres. All components of such a system are designed for high pressure; fog nozzles are most often made of brass. To create such pressure, it is necessary to use a special pumping station and comply with very high water filtration requirements. In addition, high blood pressure is dangerous if handled carelessly.

High Pressure Fogging Nozzle

High pressure fogging pump

The fog produced in such a system corresponds to real fog due to the very small sizes the resulting water droplets, but due to the use of high pressure, such equipment and components are very expensive and are used in large industrial greenhouses.

II. Low pressure fogging

There is a whole class of equipment for producing fog, operating at low pressure - about 2-2.5 atmospheres.

Of course, the resulting water suspension from such systems cannot be called full-fledged fog. This is not a mist, but rather very fine droplets, but for most applications this is sufficient, especially when used in medium and small greenhouses.

Fogger for 4 nozzles

Fogger 1 nozzle

Low pressure, conventional water filtration as for drip systems irrigation, standard pumps and controllers - all this equipment is quite reasonably priced.

Therefore, any greenhouse owner can buy and assemble a low-pressure fogging unit.

What you need to assemble a low pressure fogging system:

• Controller – controls the operation of the system according to a schedule or sensors,
• Pumping station – provides the necessary pressure in the fogging line,
• Filter – purifies water and protects nozzles from clogging,
• Water supply line – ensures water distribution throughout the greenhouse to the nozzles

1. Fogging controller

Automatic operation of the fogging system is ensured the right choice controller. The controller must ensure execution necessary task to maintain temperature, humidity, etc.

The main feature of the controller for fogging systems it is possible to turn on the water supply to seconds . Since fogging is turned on as a rule for 10-15 seconds.

In fogging systems, only specific controllers can be used, since conventional timers unable to turn on the water supply for seconds. For example, this function is available:

1. some models of Gewa-Baccara timers with index W (Window)
2. controllers automatic watering f. Irritrol series Junior.

Junior Max controller

Special Window timer f. Baccara-Gewa LLc.

2. Fogging pump

A low pressure fogging pump can be used with almost any type that provides required consumption water and pressure for fogging nozzles. Better to use pumping stations With expansion tank– a receiver, since frequent switching on and off is harmful for a pump without a receiver.

To stabilize the output pressure, a pressure reducer can be installed after the station.

3. Fogging filter

Fogging nozzles require for their operation clean water, so you need to use a filter after pumping unit. The degree of necessary filtration is needed at the level of 130 microns. Conventional 120mesh filters used for drip irrigation systems satisfy this requirement.