SU821932A2

SU821932A2 - Apparatus for automatic metering-out

Info

Publication number: SU821932A2
Application number: SU792781607A
Authority: SU
Inventors: Михаил Иосифович Кабельский; Юрий Иванович Тарасьев; Борис Наумович Брушневский; Владислав Васильевич Никитин
Original assignee: Предприятие П/Я А-7899
Priority date: 1979-06-19
Filing date: 1979-06-19
Publication date: 1981-04-15

Description

.(54) УСТРОЙСТВО ДЛЯ АВТОМАТИЧЕСКОГО ДОЗИРОВАНИЯ. (54) DEVICE FOR AUTOMATIC DOSING

Изобретение относитс к цозиругощим устройствам, используемым в химической, нефт ной и цругих област х промышленности .This invention relates to dosage devices used in the chemical, petroleum and other industries.

По основному авт. св. № 718712 Известно устройство дл автоматического дозировани содержащее корпус с входным и выходным каналами, в котором райголожен шток с чувствительным элементом , выполненным в виде двух подпружиненных коаксиально установленных сильфонов с разными эффективными площад ми l.According to the main author. St. No. 718712 A device for automatic metering is known comprising a housing with inlet and outlet channels, in which a rod is mounted with a sensitive element made in the form of two spring-loaded coaxially installed bellows with different effective areas l.

Недостатком данного устройства вл етс мала производительность.The disadvantage of this device is low productivity.

Цель изобретени - увеличение производительности .The purpose of the invention is to increase productivity.

Эта цель достигаетс тем, что в корпусе выполнен второй выходной канал, а шток чувствительного элемента снабжен жестко соединенным с ним дополнительным штоком, выведенным во второй Bbfходной канал, причем эффективна площадь штока чувствительного элемента большеThis goal is achieved by the fact that a second output channel is made in the housing, and the stem of the sensing element is provided with an additional rod rigidly connected to it, which is led out into the second Bbf feed channel, and the effective area of the stem of the sensing element is larger

(Эффективной площади дополнительного штока , а входной канал расположен между выходными каналами.(The effective area of the additional stem, and the input channel is located between the output channels.

На чертеже изображено, предложенное устройство, общий вид.The drawing shows the proposed device, the General view.

Устройство содержит корпус 1 с входным 2, первым выходным Зи вторым вь1ход-; ным 4 каналами, расположенные в них жестко соединенные шток 5 и дополнительный The device includes a housing 1 with an input 2, the first output Z, the second port; 4 channels, rigidly connected stem 5 and an additional

шток 6 соответственно, причем зффекти&на площадь штока 5 больше, чем доиолнительного штока 6, сильфоны 7 и 8 с разными эффетивными площад ми,, причем площадь сильфона 8 чем штока 5. Обводной трубопршод 9 с регулирующим устройством 1СГ соедин ет первый выходной канал 3 с полостью 11.Выходной, канал 3 сообщен с внутренней полостью сильфона 7 через отверстие 12. Одним основанием сильфоны 7,8 креп тс к корпусу , а вторым - к штоку 5.stem 6, respectively, with & on the area of stem 5 more than the additional rod 6, bellows 7 and 8 with different effective areas, and the area of bellows 8 than stem 5. Bypass pipe 9 with regulating device 1CG connects the first output channel 3 with a cavity 11. The outlet, channel 3 communicates with the internal cavity of the bellows 7 through the opening 12. With one base, the bellows 7.8 are attached to the body, and the second to the rod 5.

Claims

The device operates as follows. The pressure of noaaercia in channel 2 is rigidly applied to i and the connected rods 5 and 6. Because the effective area of the rod 5 is larger than that of rod 6, they will move towards the first output channel, simultaneously growing Guiva bellows 7, 8 and open access medium in this channel. The flow into it, the medium goes in three directions: to the output of the device, the inner cavity of the bellows 7 and into the bypass pipe 9. The dosing process begins. The medium acting on the inner cavity of the bellows 7 increases the movement of the rods 5 and 6, i.e., increases the amount of medium entering the output channel 3. The passage through the bypass pipe 9, the medium enters the cavity 11 and acts on the outer surface of the bellows 8 , effective area of which. more than the bellows 7. Over increasing the pressure in the channel 3 and the cavity 11, the movement of the rods slows down, and when a certain pressure is reached in the cavity 11, the movement of the rods stops. When the force acting on the bellows 8 exceeds the force acting on the bellows 8, the rods begin to move in the o & direction direction, closing the entrance to channel 3 and opening the entrance to channel 4, through which the subsequent dosing process begins. After closing the channel 3, the pressure in it drops, so the medium from the cavity 11, where the pressure is higher, flows 8 a4 through the output channel 3 to the output of the device. This completes the dosing process through channel 3. Dosing takes place through channel 4. As pressure drops in channel 3 and cavity 11, as well as in the internal cavity-sylphus 7, the force acting on the rod 5 from the input channel 2 increases and, when the opposite force increases, the rods 5 and 6 begin to move toward the exit channel 3. The dosing cycle is then repeated. The invention of the device for automatic dosing by the author. St. No. 718712, characterized in that, in order to increase productivity, a second output channel is made in the housing, and the stem of the sensing element is provided rigidly connected to an additional stem connected to the second output channel, and the effective area of the sensitive element stem is larger than the effective area additional rod, and the input channel is located between the output channels. Sources of information taken into account in the examination I. USSR author's certificate for application N 2401436 / 18-10, cl. Q 01 F 13/00 ,. 1O.O9.76 (prototype).

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