The method of preparation of the film-sectional greenhouses for operation

 

(57) Abstract:

The use of agriculture in the field of crop production in buildings protected ground. The inventive soil in each section of the greenhouse cover cover material, under which serves pairs. After warming up the soil to a depth of 30-60% of the depth of its freezing up steam heating is stopped. Then in each section create air currents directed opposite and along the opposite longitudinal borders of this section. This allows you to create a section of the greenhouse circular air flow, providing uniform heating of the internal environment of greenhouses and drying of the soil, humidity after thawing and steam exposure increased. In addition, resulting from the processing of high humidity in the volume section provides protection for the soil even from strong sudden cold snaps, which are not uncommon in late February and early March. The use of this method can improve the efficiency of spending of energy resources, greenhouse and processing efficiency of the soil when preparing it for use.

The invention relates to agriculture, namely, greenhouse technology.

However, in all these cases, thermal effect on the soil carried out with great energy, which are not optimal and lead to a significant appreciation of these ways.

Closest to the claimed is a method that allows to carry out the heating of the soil in the greenhouse and also heating the air in the greenhouse air through heat fluxes [2].

In this case, heating of the soil is also very energy intensive operation, in addition, thermal air currents are directed towards each other and, therefore, when they extinguish each other, which is also not conducive to minimise heat losses.

The technical objective of the invention is the reduction of energy consumption in the preparation of greenhouses for operation, as well as more efficient tillage.

This task is solved in that on the surface of the soil in the greenhouse is applied coating material, under which serves pairs, and its supply is carried out until thawing of the soil to a depth, comprising 30-60% of the depth of soil freezing until the steam, after which the coating material is removed is zdeshnie threads created in one section, oppositely directed.

Search conducted on all sources of information, showed that the claimed combination is unknown, i.e. it corresponds to a condition of patentability "novelty". Since all the techniques of method is known, it is claimed meets the condition of "industrial applicability", and as a result of the application of this method would result in a new effect, it is claimed meets the condition of "inventive step".

The method is implemented as follows.

Breakout film greenhouse consists of a number of extended partitions, each of which has its own cover, and all sections are combined in the block and between the partition and side walls. The block section has a perimeter wall, and the roof of the block consists of the roofs of individual sections. At the end of winter film greenhouses restore, thus registering the depth of soil freezing in greenhouses. In the block of soil cover cover material, for example polyethylene or other durable synthetic material that serves pairs. In the process steam supply register depth, which is the thawing of the soil, and upon reaching the depth of thawing 30-60% on shoot. It should be noted that the greater the depth of frost penetration, the greater must be the depth of thawing of the soil due to the impact of the ferry, and this dependence is almost directly proportional. The experiments showed that when the frost depth in meters depth of thawing should be about 60 cm, and the depth of freezing in 50 cm depth of the thawed soil should be about 15 cm, it is necessary that the flow of cold nerazmorozhennye soil layer and soil outside of the contour of the block sections back was not promasil the soil to the depth of the root system of the plants immediately after preparation greenhouses for operation will be planted in the ground.

In the process of heating the soil vapor is sterilization (sterilized layer to a depth of 30 cm), which has a beneficial effect on the further process of growing plants.

After thawing of the soil to the desired depth of coating material is removed and begin heating the volume of sections through the warm air flow from the radiators-fans. Heat flow is directed at it this way, that section one stream of warm air is directed along and almost under the lower ridge of one pneu section, but its direction is opposite to the first, thus the side walls of one section create a parallel and multi-directional heat flow of air, because the data flows move air mass in parallel planes within one of the roof sections, the ends through the use of existing film they unfold and thus creating a closed circuit of the heat flux at the boundaries of one section. Thus the longitudinal sides of the section do not have film walls, and adjacent sections are communicated to the sides and end sides have the film wall, additionally, the entire section has a gable roof. Under the action of heat flow, in fact distributed around the perimeter of the section, there is an effective drying of the soil, which after steam exposure is very saturated with water. When this occurs in this case, the high humidity in the volume section allows you to protect the soil from even a strong sudden cold snaps, which are not uncommon in late February and early March. Also when exposed to the same heat in the form of a circular heat the air flow in the volume of one section becomes possible to carry out such exposure section which allows you to save on the number of heaters-fans. In this case, such a set of techniques allows a more efficient implementation of the energy potential of the economy and a more economical use of funds and more efficient to process the soil when preparing the greenhouse for use.

Sources of information

1. Prima L., Effective electrification protected ground. - M.: Kolos, 1980.

2. Handbook edited Listova b.p.The use of electrical energy in agriculture. - M.: Kolos 1974, S. 368-369.

The method of preparation of the film-sectional greenhouses for operation, including heating of greenhouses and soil heating air in the greenhouse by means of thermal air flow, characterized in that on the surface of the soil in the greenhouse is applied coating material, under which serves pairs, and its supply is carried out until thawing of the soil to a depth of $ 30 - 60% of the depth of soil freezing until the steam, after which the cover material is removed, and thermal air flow is directed along each side of the section bordering the other section, and the air flow created in the same partition are directed oppositely.

 

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