SU901831A1

SU901831A1 - Device for volume metering of liquids

Info

Publication number: SU901831A1
Application number: SU772478645A
Authority: SU
Inventors: Лев Иванович Зауралов
Priority date: 1977-04-25
Filing date: 1977-04-25
Publication date: 1982-01-30

Description

1one

Устройство относитс к объемному дозированию жидкостей и может быть использовано в химической и других област х промышленности, в частности, дл введени присадки в авиационное топливо.The device relates to volumetric dosing of liquids and can be used in the chemical and other industries, in particular, for the introduction of additives into aviation fuel.

Известны смесители жидкостей, содержащие объемный счетчик жидкости, ротационный насос и систему трубопроводов П. .Known mixers of liquids containing a volumetric liquid meter, rotary pump and piping system P.

Наиболее близким к предлагаемому вл етс дозатор, содержащий магистрали подвода основной и добавл емой жидкости, смеситель и установленные на магистрал х блоки-измерители расходов основной и добавл емой жидкости , а также установленные на одной из магистралей электромагнитный кран и обратный клапан 123.Closest to the present invention is a metering device containing main and added fluid supply lines, a mixer and main flow meter and added liquid flow meters installed on the mainlines, as well as an electromagnetic valve installed on one of the lines and non-return valve 123.

Недостатком известных устройств вл етс низка точность, обусловленна конструктивным выполнением блока измерени добавл емой жидкостиA disadvantage of the known devices is low accuracy, due to the structural design of the measuring unit of the added liquid.

и сложностью переналадки и регулировки устройства.and the complexity of readjustment and adjustment of the device.

Цель изобретени - повышение точности объемного дозировани .The purpose of the invention is to improve the accuracy of volumetric dosing.

Поставленна цель достигаетс тем, что устройство снабжено закрепленным на выходном валу измерител добавл емой жидкости многокулачковым копиром с переключателем , а также реле времени , через которое копир с переключаto телем соединен с электромагнитным краном,-при этом измеритель добавочной жидкости через дополнительно ус-тановленный дроссель, электромагнитный кран и обратный клапан св зан The goal is achieved by the fact that the device is equipped with a multi-cam copier with a switch fixed on the output shaft, and a time relay through which the copier with switch is connected to an electromagnetic valve, the additional fluid meter through an additionally installed choke, solenoid valve and check valve are connected

5 трубопроводами со смесителем, а на выходном валу измерител основной жидкости закреплен однокулачковый копир с переключателем, соединенный с реле времени.5 pipelines with a mixer, and on the output shaft of the basic liquid meter fixed one-cam cam with switch, connected to the time relay.

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Claims

In addition, the cams of the copier of the added liquid are fixed in the slots with the possibility of angular displacement. 3 The drawing shows the proposed device. The device contains flow sensors of primary 1 and fluid 2 of the volume-rotational type added, gearboxes 3 and copiers 5 and 6, grooves 7 for cam movement, switches 8 and 9 connected by an electrical circuit (not shown) with time relay 10 and a solenoid valve 11 The sensors 1 and 2 are connected by pipes to the mixer 12. Between the mixer 12 and the sensor 2, a throttle 13 and a check valve are installed. The device operates as follows. When the main fluid is supplied, sensor 1, gearbox 3 and copier 5 rotate. With each revolution of cam 5, its cam acts on switch 8, which gives a signal to turn on solenoid valve 11 and time relay 10. When an added fluid is supplied under pressure greater than the pressure of the primary fluid, sensor 2, gearbox k and copier 6 rotate. Time relay 10 is set to count down the time sufficient for operation of meter 2 and passage of added fluid through throttle 13, valves 11 and 14. and 9 mixer 12, having counted the required dose, meter 2 through reducer 4, copier 6, switch 9 turns off valve 11. At this point, the input of the added fluid into mixer 12 stops. The relative dose of the added fluid does not depend on the pressure in the mains, since the principle of the volumetric measurement of the main fluid and the added fluid is used as the basis for the operation of the device. The adjustment and adjustment of the device is made by offsetting 1 cams 7, adjusting throttles 13 and time relay 10. Claim 1. A device for volumetric dosing of liquids, comprising main and added liquid supply lines, a mixer and main-and added-liquid measuring units installed on lines, as well as an electromagnetic valve installed on one of the lines, and that, in order to increase the accuracy of volumetric dosing, the device is equipped with a multi-cam copier mounted on the output shaft of the fluid added with a switch, as well as a time relay, h Res copier with a switch which is connected to the electromagnetic valve, wherein the liquid additive through the meter further set throttle solenoid valve and a check valve associated conduits to the mixer, and the output shaft fixed base fluid meter odnokulachkovy copier with a switch connected to the timer. 2. The device according to claim 1, about 1 tl, which is that the cams of the added fluid are fixed in the slots with the possibility of angular displacement. Sources of information taken into account during the examination 1. USSR author's certificate number ЗОБЗЯЯ, cl. G 01 F 17/00, 1965.

2. Liquid dispenser I. Technical description and operating instructions О 6-3-02К (prototype).