SU966435A2

SU966435A2 - Apparatus for removing harmful substances off bath evaporation surfaces

Info

Publication number: SU966435A2
Application number: SU813271525A
Authority: SU
Inventors: Илья Файвелевич Юфит
Original assignee: Предприятие П/Я В-8843
Priority date: 1981-04-08
Filing date: 1981-04-08
Publication date: 1982-10-15

Description

(54) УСТРОЙСТВО ДЛЯ УДАЛЕНИЯ ВРЕДНЫХ ВЕЩЕСТВ С ПОВЕРХНОСТИ ИСПАРЕНИЯ ВАНН(54) DEVICE TO REMOVE Harmful Substances from the Evaporation Surface

И.зобретение относитс к вентил ции и предназначено дл отсоса газовoздsluнoй смеси от промьштенннх ванн.The invention relates to ventilation and is intended for the suction of the gas-filled mixture from industrial baths.

П6 (ОСНОВНОМУ авт. .св. 623063 , известно устройство дл удалени вредных веществ споверхности испарени ванн, содержащее навесное укрытие , состо щее из двух подвижно соединенных створок, одна из которых подсоединена к выт жному воздуховоду , а друга - к воздухоприемнику, на внутренней поверхности ванны выполнен выступ, примыкающий к ее борту и образующий с прилегающей к этому борту створкой укрыти диффузор, а в другой створке, подсоединенной к выт жному воздуховоду, выполнены окна, причем в диффузоре дополнительно размещены-направл ющие пластины .P6 (MAIN auth. St. 623063, a device for removing harmful substances from the evaporation surface of baths is known, which contains a mounted cover consisting of two movably connected flaps, one of which is connected to the exhaust duct and the other to the air receiver, on the inner surface the bath is made a protrusion adjacent to its board and forming a diffuser with a shutter adjacent to this board, and in the other shutter connected to the exhaust duct windows are made, and in the diffuser there are additional guides e plate.

Однако в этом устройстве эффек- . тивность выт жки резко снижаетс при открывании створки, подсоединенной к воздухоприемнику, так как диффузор, образованный выступом и прилегающей створкой, перестает работать, вследствие этого вредные вещества с поверхности испарени However, this device is effective. Strength of the drastically reduced when opening the sash connected to the air intake, since the diffuser formed by the protrusion and the adjacent sash stops working, as a result of which harmful substances from the evaporation surface

ванн выдел ютс в зону дыхани обслуживающего персонала.Baths are released into the breathing zone of the operating personnel.

Цель изобретени - повышение эффективности удалени вредностей.The purpose of the invention is to increase the efficiency of removal of hazard

Поставленна цель достигаетс тем, что устройство дополнительно содержит установленный между направл ющими пластинами перфорированный воздуховод дл - создани воздушной The goal is achieved by the fact that the device additionally contains a perforated duct installed between the guide plates for - creating an air

10 завесы нащ поверхностью испарени ванны при открытии подсоединенной к воздухоприемнику створки.10 curtains on the surface of the evaporation of the bath when opening the sash connected to the air inlet.

На фиг.1.изображено устройство, общий вид; на фиг.2 - схема управ15 лени подачи схсатбго воздуха.Figure 1 shows the device, general view; FIG. 2 is a diagram of control of air supply air flow.

Устройство дл удалени вредных веществ с поверхности испарени ванны 1 содержит навесное укрытие, состо щее из двух подвижно соединенных The device for removal of harmful substances from the evaporation surface of the bath 1 contains a mounted cover consisting of two movably connected

Claims

20 flaps 2 and 3, one of which is connected to the exhaust duct 4, and the other to the air inlet 5, on the inner surface of the bath 1 there is a protrusion 6 adjacent to its 25 side and forming with the flap 3 adjacent to this side, and in the other casement 2 connected to the exhaust duct 4, windows 8 are made, and in 30 diffuser 7 there are additionally placed guide plates 9, between which a perforated air is installed: and a comb 10 for creating an air curtain above the evaporation surface of the bath 1 when opening Inonii to 5 -vozduhopriemniku sash 3. Compressed air supply duct 10 has perforated L is the solenoid valve 11 / which receives the signal to switch from the limit switch 12. The device operates as follows. Iodine action of the exhaust system throughout the entire volume of the shelter zone of the bath 1 through the windows 8, which are made in the valve 2, creates a vacuum in the air. As a result, the air from the room rushes into the dilution zone through the air inlet 5. At the same time, in the diffuser formed by the protrusion 6 and the shutter 3 of the shelter, the velocity field of the incoming air flow is equalized and a continuous uniform air flow is formed throughout the shelter area contributes to the uniform dilution of harmful vapors and gases released from the surface and vapor, and the uniform suction of harmful substances into the exhaust ventilation system. At the moment the sash 3 is opened, the diffuser 7 stops working / but the limit switch 12 is turned on and supplies power to the coil of the electromagnetic valve 11. Compressed air is supplied to the perforated duct 10 and directed by the plates 9, comes out above the evaporation surface. This air flow / reaching the flap 2 / is sucked through the windows 8 into the duct 4, and does not allow harmful substances to escape into the air space above the bath 1 and thus increases the efficiency of exhaust ventilation. The technical and economic effect of using the proposed device is to ensure safe working conditions by preventing harmful substances from entering the room. The invention The device dp remove harmful substances from the surface of the evaporation of baths by author. St. No. 623063 / characterized in that / in order to increase the efficiency of removing the harmful substances, the device additionally comprises a perforated air duct installed between the guide plates to create an air curtain above the evaporation surface of the bath when the flap is connected to the air inlet. sources of information taken into account during the examination 1. USSR Author's Certificate No. 623063, cl. F 24 F 7/02, 1978.