Many gardeners put a lot of effort toget the best crop of crops grown in the greenhouse. For this you need to consider everything. In this case there are no trifles. In order to ensure an optimal ventilation mode, an automatic device is installed for opening the window in the greenhouse. It will facilitate the work of farmers, as it will relieve them from constantly controlling the level of humidity and temperature inside the greenhouse. What kinds of automatic machines for opening the vents of the greenhouse exist for sale? How to make install such a device with your own hands? Let's talk about this in more detail.
The automatic opening of the window of the greenhouse is a fairly simple device. It gives its owners a lot of advantages. Maintenance of the greenhouse complex will be much easier.
It is important for each culture to withstandcertain conditions. Automatic ventilation will allow creating the most favorable microclimate inside the greenhouse specifically for those plants that are now grown in it. A properly installed and well-designed ventilation system will not only increase yields, but also make life easier for the owners of the greenhouse. After all, they do not need to carefully monitor the conditions inside it. On sale there are 4 main types of such devices, which are distinguished by the type of devices. To properly mount or make yourself a similar device, you need to familiarize yourself with the most common ones.
Automatic machines for opening the vents of the greenhouse inAuto mode by type of operation are divided into mechanical and electrical. Both species have their strengths and weaknesses. For example, an electric machine for automatic opening of the vents of greenhouses responds to changes in temperature in a greenhouse, or simply works in timer mode. Now there are such regulators that can be programmed and controlled by the Internet. The advantages of electric automatic opening of the face, side vents for the greenhouse should include adaptability, compactness and efficiency. They have great power.
Главный недостаток – зависимость от electricity. If the power supply of the machine fails, all the plants may die. Therefore, they usually purchase a spare power unit. Also, the repair of such devices is quite expensive.
There are three types of mechanisms forgreenhouses. The automatic opening of the vents horizontal or vertical can use the principle of linear expansion of metals under the influence of temperature. These are bimetallic systems, in the manufacture of which two different metals are used. For such devices it is very difficult to set correctly the required level of heat in the greenhouse.
It's pretty easy to assemble your own machine.systems of hydraulic opening of the greenhouse window (for example, “Dusya-Sun” or “Volya”). It does not depend on electricity, does not emit extraneous odors. Instead, it creates coziness and comfort inside the greenhouse. The disadvantages of such systems include high inertia, high cost, and temperature control only at the installation sites. The last type is pneumatic mechanisms. They are based on the principle of heat accounting. They are the easiest to do yourself. They are rather bulky and depend on the pressure in the atmosphere, but their cost is the lowest at absolute non-volatility.
There are several ways in whichYou can organize automatic ventilation of the greenhouse. This must be taken into account when creating ideal conditions for plants inside the greenhouse. If the design is quite large, airing through 2 vents that are next to each other should be carried out. In the case when the greenhouse has an elongated shape, use the machine for opening the end of the window greenhouse. This is through blowing. Both doors open automatically.
You can use the machine for the vents in the wall,which have special devices. The windows are at different heights. The most accurate ventilation systems use temperature and humidity sensors. It is also possible to do it yourself.
Today, automatic ventilation systems of domestic manufacturers are very popular. Their cost is lower than foreign ones, and their functionality and quality are not inferior to them.
Very popular among gardeners opening machinewindow leaves for greenhouses "Dusya-San". It maintains the temperature inside the greenhouse at +16 - +25 degrees. It is used for air vents up to 7 kg. For a more powerful opening of doors and windows, Ufopar products are used (reinforcement on the rod reaches 100 kg), Tuymazy (the sash rises to a height of 40 cm), Thermovent (opening up to 45 cm upwards). Some manufacturers have resorted to a little trick. For example, the automatic opening of the vent window of the greenhouse “Volya” is intended exclusively for the structures of this manufacturer. This should be considered when buying a similar product.
There are techniques tested by experienced gardeners that provide high-quality airing of the greenhouse. The principle of operation of such devices is clear.
The automatic opening of the vents for their greenhouseshands make simple enough. For this, a sealed metal container is used. It transfers heat from the heat of the sun inside. There are air and liquid. The substance creates pressure inside the container during expansion. Thus, the liquid flows into a liter jar. Under its weight the window leaf will lower. This procedure takes place through a block that transmits the force at the point of attachment of the string. When it becomes cool enough inside the greenhouse, the process will stop and go in the opposite direction. For the manufacture of the system will require a minimum of resources.
The automatic opening of the vents for their greenhouseshands made according to a certain pattern. To do this, a tube is inserted into a pre-prepared container (empty and sealed). The liquid passes through it into the vessel, which should fill 40% of the internal volume. This may be water, antifreeze or used engine oil. After filling the tank, it is tightly closed and fixed rigidly on the upper bar of the greenhouse.
In the liter jar in the lid is drilledhole in which the tube is inserted. It is better that it was small. So the liquid will evaporate less afterwards. Water or oil is poured through the tube. The level should be 1 cm higher than the line of the overlapped lower opening of the tribe. Then the seam is fastened, which connects the small container with a twine and a correctly chosen point of the transom. Both containers are connected to a single system using a flexible hose.
Automatic opening of the window of the greenhouse afterInstallations should be adjusted at normal temperature and closed greenhouse leaf. Here the procedure requires the use of trial and error for the right balance.
If the window is too heavy, then the designshould be strengthened by weighing jars. The ratio of liquid poured does not change. If you choose the right balance, with the help of this method you can open quite bulky vents. They will close under their weight. For this, the lower bar of the frame must be heavier than the upper one.
Having familiarized with such device, as the automatic machineto open the window of the greenhouse, you can purchase the most suitable option or perform a similar system with your own hands. Considering all the conditions inherent in a particular greenhouse, it is possible to create ideal conditions for various types of crops.
