SU966438A1

SU966438A1 - Device for removing harmful substances

Info

Publication number: SU966438A1
Application number: SU813282313A
Authority: SU
Inventors: Владимир Давыдович Столер; Георгий Юрьевич Хватов; Татьяна Алексеевна Хватова
Original assignee: Всесоюзный Научно-Исследовательский Институт Охраны Труда Вцспс
Priority date: 1981-04-20
Filing date: 1981-04-20
Publication date: 1982-10-15

Description

(54 ) УСТРОЙСТВО ДЛЯ УДАЛЕНИЯ ВРЕДНОСТЕЙ(54) DEVICE FOR REMOVAL OF HAZARDS

Изобретение относитс к вентил ции и может быть использовано дл удалени вредностей в листах их образовани .The invention relates to ventilation and can be used to remove the hazards in their formation sheets.

Известно устройство дл удалени вредностей, содержащее выт жной зонт, расположенную под ним с образованием отсасывающей щели вставку и установленное по периметру источника вредностей сопло, наклоненное к оси зонта Cl.A device for removing hazardous substances is known, which contains an exhaust umbrella located under it with the formation of a suction slit and an insert mounted around the perimeter of the source of harmful substances, inclined to the axis of the umbrella Cl.

Недостатком данного устройства вл етс низка экономичность, т.е. дл удалени вредностей необходимо удал ть большой объем воздуха, на что приходитс затрачивать значительное количество электроэнергии.The disadvantage of this device is low efficiency, i.e. to remove the hazards, it is necessary to remove a large amount of air, which requires a considerable amount of electricity.

Цель изобретени - повышение экономичности .The purpose of the invention is to increase efficiency.

Поставленна цель достигаетс тем, что угол наклона сопла равен 5-15, зонт расположе от источника вредностей на рассто нии, не превышающем 0,3 его ширины, а отношение последней к ширине вставки равно 0,9-1,1.The goal is achieved by the fact that the angle of inclination of the nozzle is 5-15, the umbrella is located at a distance from the source of the hazard not exceeding 0.3 of its width, and the ratio of the latter to the width of the insert is 0.9-1.1.

На чертеже показано устройство дл удалени вредностей, разрез.The drawing shows a device for removing hazards, incision.

Устройство дл удалени вредностей содержит выт жной зонт 1, рас-.The device for the removal of hazards contains exhaust umbrella 1, ras.

положенную под ним с образованием отсасывающей щели 2 вставку 3 и установленнноё по периметру источника 4 вредностей сопло ,5, наклонное под углом d к оси зонта 1, причем угол Ы. наклона сопла 5 равен 5-15, а зонт 1 расположен от источника 4 вредностей на рассто нии И, не превышающем 0,3 от его ширины S, а от10 ношение ширины S источника 4 вредностей к ширине В вставки 3 равно 0,9-1,1.an inset 3 placed under it with the formation of a suction slit 2 and a nozzle installed along the perimeter of the 4 hazardous sources, 5, inclined at an angle d to the axis of the umbrella 1, with angle N. the inclination of the nozzle 5 is 5-15, and the umbrella 1 is located from the hazard source 4 at a distance I that does not exceed 0.3 of its width S, and the relative width S of the hazard source 4 to the width B of the insert 3 is 0.9-1 ,one.

Устройство работает следующим образом .The device works as follows.

1515

Claims

The air jet coming out of the nozzle 5 completely shields the source of hazard 4 from the influence of the air environment of the working zone and directs the hazard to the exhaust umbrella 1 into the zone of the slit 2. At the same time, the jet ejects the working zone through its outer boundary through the internal - the polluted air, which is in the circulating closure of that zone, located between the source of hazard 4 and the insert 3, and is divided into two streams - vozorny, leaving to the circulating zone, and residual, leaving in 30 the crack

2. Thus, in order to localize the hazards, it is necessary to remove only a part of the flow, which allows for reduced volume of air. The application of the proposed device allows reducing the amount of dead air, which leads to a reduction in the electricity consumed by the ventilation. DETAILED DESCRIPTION OF THE INVENTION A device for removing hazards, containing an exhaust umbrella, located under it with the formation of a suction gap, an insert and a nozzle mounted around the perimeter of the source of harm, tilted to the axis of the umbrella, so that in order to increase efficiency, the angle of inclination of the nozzle is 5–15, the umbrella is located from the source of harmfulness at a distance not exceeding 0.3 of its width, and the ratio of the latter to the width of the insert is 0.9–1.1. Sources of information taken into account for the examination 1. Staroverov I.G. Internal sanitary facilities. Ch.P. Fan and air conditioning. M., stroiizdat, 1977, p. 236.