RU2212010C2 - Device for cleaning air in stock farm - Google Patents

Abstract

FIELD: farming; air-conditioning facilities. SUBSTANCE: proposed device includes electric filter with corona-forming and receiving electrodes arranged inside its housing and ventilation unit. Corona-forming and receiving electrodes are made in form of obtuse angle and are secured on opposite sides of electric filter housing; each receiving electrode is located opposite corona-forming electrode and air supply duct is provided with intake branch pipes whose lower ends are located at distance of 0.3-2.0 m above level of room floor. EFFECT: reduced power requirements; improved conditions for animals and attending personnel. 2 dwg

Description

 The invention relates to agriculture, namely, devices for cleaning and disinfecting the air in the premises of animals and birds.

 A device is known - a Chizhevsky chandelier, consisting of concentric rings with electrodes placed in the form of needles (1).

 The disadvantage of this device is the inability to set the normalized ion level in the cleaned room due to the variability of factors affecting its effectiveness.

 The closest technical solution, selected as a prototype, is a device for air purification of a livestock building, including an electrostatic precipitator placed in series, in the case of which there are corona and precipitation electrodes, and a ventilation unit. The electrodes are made V-shaped and their sharp angles are directed towards the air flow supplied to the filter through the inlet. Moreover, each precipitation electrode is placed opposite the gap between adjacent corona electrodes. The supply air duct has intake pipes, the lower ends of which are located at a distance of 0.5-1.0 m from the floor level to remove contaminated air from the animals. A mesh element of an electrical insulating non-woven material is installed in the inlet for rough cleaning of air from mechanical impurities.

 The disadvantage of this device is the appearance of secondary entrainment at speeds of dusty air flow close to the limit.

 The objective of the invention is to improve the quality of cleaning, reducing energy consumption, improving the conditions of animals and the work of staff.

 This problem is achieved by the fact that the proposed device includes an electrostatic precipitator, in the housing of which are installed the corona and precipitation electrodes, and a ventilation unit. The electrodes are made in the form of an obtuse angle and are fixed on opposite sides of the housing. Moreover, each precipitation electrode is located opposite the corona electrode. The supply air duct has intake pipes, the lower ends of which are located at a distance of 0.3-2.0 m from the floor level to remove contaminated air from the animals. A mesh element of an electrical insulating non-woven material is installed in the inlet of the intake pipe for rough cleaning of air from mechanical impurities. A set of sections (corona - sedimentation electrodes) allows you to obtain the optimal dust removal parameters for various typical agricultural premises, having standard sizes by means of a quantitative set of section changes.

 The proposed device contains: 1 - housing, 2 - electrostatic precipitator, 3 - corona electrodes, 4 - precipitation electrodes, 5 - duct, 6 - fan, 7 - intake pipes, 8 - high-voltage rectifier (VVU), 9 - gas distribution grid, 10 - the inlet of the intake pipe, 11 - connecting cables, 12 - the floor of the room.

 Figure 1 shows a functional diagram of a device for cleaning the air of a livestock building, figure 2 - device of an electrostatic precipitator.

 A device for cleaning the air of a livestock building works as follows.

 The corona electrodes 3 and the precipitation electrodes 4 are supplied with rectified voltage from the high-voltage rectifier 8. A fan 6 operating in the exhaust mode supplies the electrostatic precipitator electrodes 2 with dusty air flow from two levels from the floor of the room 12: the 1st level is at a height of 0 , 3 m from the floor for the collection of coarse dust fractions, the 2nd level - at a height of 2 m from the floor for the collection of fine dust fractions. The speed of the dusty air flow should not exceed 1.0 m / s to eliminate the secondary ablation phenomenon. The electrostatic precipitator 2 has on the lower side of the housing 1 a gas distribution grill 9 in the form of a wire mesh measuring 5 • 5 cm, which excludes electric shock to people. The fan 6 through the gas distribution grid 9 delivers fine dust floating in the air to the corona electrodes 3 and precipitation electrodes 4 and electrostatic precipitators 2. Dust particles, having acquired a charge in an electric field in the active zone of electrostatic precipitator 2, are deposited on the corona 3 and precipitation 4 electrodes. Purified air to the MPC standards, passing through the electrostatic precipitator 2, again enters the room, thereby eliminating the problem of recirculation of contaminated air inside the room, and the room air is saturated with light negative ions, which beneficially affect the body of the staff and farm animals.

Claims (1)

 A device for air purification of a livestock building, containing an electrostatic precipitator, in whose case corona and precipitation electrodes are placed, and a ventilation unit, characterized in that the corona and precipitation electrodes are made in the form of an obtuse angle and are fixed on opposite sides of the electrostatic precipitator housing, with each precipitation electrode being placed opposite the corona electrode, and the supply duct has intake pipes, the lower ends of which are located at a distance of 0.3-2.0 m from the floor level tnovodcheskogo premises.

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