RU2734557C1 - System for humidification and cooling of ventilation panels of air-supply windows of poultry houses - Google Patents

Abstract

FIELD: ventilation and air conditioning; poultry breeding.

SUBSTANCE: invention relates to poultry farming ventilation systems and can be used to provide circulation of cooled air in closed poultry farms. System for humidification and cooling of inlet ventilation panels of air-supply windows of houses includes a pipe with holes for water supply from the top of the panel and water collectors at the bottom. Pressure polymer piping with stiffness rings around pipe at a distance of width of ventilation openings and panels horizontally passes from above ventilation cassettes. Pipe sections on top of the panels between the stiffening rings are perforated, around the windings by geomats. Ventilation panels are made of geonet and fascines of bulrush attached to it, and fixed on air inlet grids. Non-pressure water collecting pipe of polymer material with diameter not less than thickness of panels is stretched along the window ledges with slope. At that, pipe sections passing under panels within their width are made with cutout to the middle of the pipe, on top of which along the whole area of cuts there are mesh made of stainless material.

EFFECT: invention provides higher efficiency of house ventilation system due to effective cooling and moistening of inlet warm and dry air, creation of normal microclimate inside closed workshops of hen houses in summer heat, as well as reduction of material costs for its installation.

1 cl, 6 dwg

Description

The invention relates to ventilation systems for poultry farms and can be used to circulate cooled air in closed poultry farms.

A relatively close technical solution is the PAD LING poultry house humidification and cooling system, [1] consisting of a humidifying pipe and ventilation panels (cassettes).

The disadvantage of the closest analogue is the complexity of the system and the high cost of materials and installation.

The purpose of the invention is to improve the efficiency of the ventilation system for poultry houses and reduce the material costs for its installation.

This goal is achieved by the fact that in the system of humidification and cooling of the panels of the supply windows of the poultry houses, it includes pipes with holes for water supply from above, panels made of geogrid and fascin, water collectors at the bottom and above the ventilation cassettes, a pressure polymer pipe with stiffening rings runs horizontally around the pipe at a distance of the width of the ventilation windows and panels, the pipe sections on top of the panels between the stiffening rings are perforated, wrapped around with geomats, and the ventilation panels themselves made of geogrid and fascinates attached to it and attached to the gratings of the supply windows, at the bottom of the panels along the line of the window sills with a slope there is a pressureless a drainage pipe made of polymeric materials with a diameter not less than the thickness of the panels, sections of the pipe passing under the panels within their width are made with a cutout to the middle of the pipe, on top of which a stainless steel mesh is attached over the entire area of the cutouts. Water is supplied to the pressure polymer pipe from two interconnected pressure tanks, which are installed on the roof on both sides, at the beginning and at the end of the wall of the poultry house, cold water supply is connected to the tanks for filling with water, valves are installed on the water supply in front of the tanks to regulate the pressure water and humidity of the panels, ice is added to the water tanks to cool it, up to 30% of the tank capacity.

The figure 1 shows a diagram of the humidification and cooling of the panels of the supply windows of the poultry house in perspective; figure 2 is a cross-section of a panel (cassette) with a humidifying pipe along the line of the supply window; figure 3 is a polymer pipe with perforated sections and stiffening rings; figure 4 - panel-cassette from geogrid and fascin; figure 5 - fascina; Figure 6 shows a drainage pipe with cutouts and a grid.

The system of humidification and cooling of the ventilation panels of the supply windows of the poultry houses contains: two pieces of water tanks (1) with cold water and pieces of ice (2), a pressure pipe (3), around which there are stiffening ribs (4); the gaps of the pipe (3) between the stiffeners (4), has a perforated surface (6), for draining water and humidifying the panels (5) and wrapped with geomats (7). A water supply (8) is connected to the water tanks (1) and control valves (9) are installed at the end of the water supply in front of the tanks (1). Ventilation panels (cassettes) (5) are made of geogrid (10) and fascin (11) attached to it. Ventilation panels (5) are installed to metal grilles (12) in window openings. At the bottom of the panels (5), along the line of the window sills with a slope, there is a drainage pipe (13) made of polymer material. Pipe sections (13) passing under the panels, a cut is made to their width to the middle of the pipe, on top of which a stainless steel mesh (14) is attached.

The system of humidification and cooling of the ventilation panels of the poultry inlet windows is constructed as follows:

at the beginning, two pieces of water tanks (1) with the required capacity (made of polymer material) are made, and they are installed on the roof at the beginning and at the end of the building on the same level. Then a pipe (3) with stiffening ribs (4) (made of polymer material) is prepared, the ends are drawn from the bottom to the tanks (1), the pipe sections (6) passing over the top of the ventilation panels (5) are made with slotted holes, i.e. perforated and wrapped with geomats (7), 3 - 5 cm thick. A water supply (8) is supplied to the pressure tanks to supply cold water, and a valve (9) is installed at the end of the water supply in front of each tank. A pipe (3) is pulled from the pressure tanks over the ventilation windows, attached to the wall so that the pipe sections (6) with wound geomats (7) pass exactly over the supply ventilation windows with panels (5). Ventilation panels (5) are made of geogrid (10) and fascin (11) with a diameter of 8-10 cm from ripe reeds. Ventilation panels (5) are attached to the window metal grilles (12) with the possibility of their removal and replacement if necessary. Then a drainage free-flow pipe (13) is made of a polymer material, with a diameter equal to or greater than the thickness of the panels (5), and it is carried out under the panels along the line of the window sills with a slope towards the drainage (sewer). The sections of the pipe (13) passing under the panels within the limits of their width are made with a cutout to the middle of the pipe; a mesh (14) made of stainless metal is attached to it. The pressure tanks (1) are filled with cold water and ice (2) is periodically added to it in a volume up to about 30% of the tank capacity.

The system of humidification and cooling of the ventilation panels of the poultry inlet windows works as follows:

Ice is added to two tanks (1) filled with water (up to 30% of the volume), cooled water under pressure flows through the pipe (3), through its perforated sections (6) and geomat (7), water particles flow down and under the action of gravitational forces seeps into the fascines (11) on the panels (5), moisturizing and cooling them.

At the beginning the pressure tanks (1) are filled with cold water, then ice is added to them. Ice can be easily purchased from nearby refrigerators and food processing plants.

The volume and pressure of water in two tanks (1), the amount of added ice (2) and the frequency of their addition are selected for each poultry house separately, depending on the specific (natural and operational) conditions. The cooled water from the tanks enters the pipe (3), under pressure through the slotted holes of the perforated sections (6) of the pipe, water particles fall into the geomats (7), from them (under the action of gravitational forces) the water evenly flows down and seeps into the panel (5) moistening and cooling the air. At the same time, fans at the end or on the roof of the building of the poultry house provide exhaust and air circulation in the air pool.

This ensures the intake and circulation of cooled air in the poultry housing. Dry and warm air, passing through the panels (5), partially removes moisture and turns into cold and humid. The remaining water flows off the panel and flows through the mesh (14) into the drainage pipe (13). Fascines (11) let air pass well and are saturated with water, part of the water evaporates from the surface, evaporation occurs due to the energy of hot air, which passing through the cassettes is not only humidified, but also cooled.

To achieve the required flow and maximum effect, the area of the panels and the capacity of the exhaust (tunnel, etc.) fans must be correctly calculated. According to preliminary calculations, the use of chilled (ice) water from the pressure tanks (1) allows to reduce the energy consumption for the operation of fans by more than 30%.

The use of reed fashin (11) increases not only the breathability and flexibility of the panels, but also contributes to the retention of cold moisture for a certain period of time. Compared to pure polymer panels, the proposed panels maintain the cold better, so less humidifying water is required. At the same time, the cost of panels made of fascines and geogrid is 30-40% cheaper compared to purely polymer panels.

Thus, the proposed system of humidification and cooling of the ventilation panels of the poultry houses provides effective cooling and humidification of the supplied warm and dry air, and most importantly, ensures the creation of a normal microclimate inside the closed poultry workshops in the summer heat. In cool and cold seasons, the system is turned off by means of valves (9), panels (5) are removed, and supply windows are insulated.

The system of humidification and cooling of the ventilation panels of the poultry inlet windows can be most effectively used in closed poultry farms with forced (transverse and longitudinal) ventilation of halls, with roof and combined ventilation schemes.

Sources of information

1.Catalogue AGROVENT, pp. 44-45. www.t Agrovent.ru. COO

Claims (2)

1. The system of humidification and cooling of the supply ventilation panels of the supply windows of poultry houses, including a pipe with holes for water supply from the top of the panel and water collectors at the bottom, characterized in that a pressure polymer pipe with stiffening rings runs horizontally on top of the ventilation cassettes around the pipe at a distance of the width of the ventilation windows and panels , pipe sections on top of the panels between the stiffening rings are perforated, wrapped around with geomats, the ventilation panels are made of geogrid and reed fascias attached to it, and are attached to the grilles of supply windows, along the line of the window sills with a slope, a non-pressure drainage pipe made of polymer material with a diameter of at least than the thickness of the panels, while the sections of the pipe passing under the panels, within their widths, are made with a cutout to the middle of the pipe, on top of which, over the entire area of the cutouts, stainless steel meshes are attached. 2. The system of humidification and cooling of ventilation panels according to claim 1, characterized in that water is supplied to the pressure head pipe from two communicating pressure tanks installed on the roof on both sides, at the beginning and at the end, cold water supply is connected to the tanks to fill them with water, valves are installed on the water supply in front of the tanks to regulate the water pressure and humidity of the panels, ice is added to the water tanks to cool it, periodically renewed, in the amount of up to 30% of the tank capacity.

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