SU558158A1

SU558158A1 - Pulse Liquid Dispenser

Info

Publication number: SU558158A1
Application number: SU2316091A
Authority: SU
Inventors: Рубен Арменович Татевосян
Original assignee: Всесоюзный Научно-Исследовательский Институт Продуктов Брожения
Priority date: 1976-01-22
Filing date: 1976-01-22
Publication date: 1977-05-15

Description

1one

Изобретение относитс к области дозировани материалов.The invention relates to the field of dosing materials.

Известен автоматический дозатор дл жидкостей с механизмом обеспечени пропорциональности среднего расхода к количеству выдаваемых в единицу доз жидкости 1.A known automatic dispenser for liquids with a mechanism for ensuring the proportionality of the average flow rate to the number of doses of liquid 1 delivered per unit.

Наиболее близким к изобретению по технической сущности вл етс дозатор, содержащий перепускной цилиндр с плавающим поршнем , систему иодачи и отвода жидкости с клапанами и систему автоматического управлени клапанами 2.The closest to the invention to the technical essence is a dispenser comprising a floating piston bypass cylinder, a valve iodine and drainage system with valves and an automatic valve control system 2.

Недостатком указанного дозатора вл етс невозможность регулировани производительности устройства в зависимости от объема выдаваемой жидкости.The disadvantage of this dispenser is the inability to control the performance of the device depending on the volume of liquid dispensed.

Дл обеспечени регулировани производительности устройства в непосредственной зависимости от объема выдаваемой жидкости в предлагаемом дозаторе плавающий поршень выполнеп из двух отдельных дисков, промежуток .между которыми заполнен жидкостью, а в систе.му управлени включены манометрические датчики.In order to control the performance of the device in direct dependence on the volume of liquid dispensed in the proposed dispenser, the floating piston is made of two separate disks, the gap between which is filled with liquid, and the gauge sensors are included in the control system.

На чертеже показана принципиальна схема описываемого устройства, состо щего из корпуса 1 с впускными 2 и 3 и выпускными 4 и 5 клапанами, с перепускным цилиндром 6, плавающим порщнем 7, состо щим из левого 8 и правого 9 дисков, между которыми па цилиндре установлено упорное кольцо 10 и залита промежуточна жидкость 11, системы подачи 12 и отвода 13 и 14 л идкости и система 15 автоматического управлени клапанами, включающа датчики давлени 16 и 17.The drawing shows a schematic diagram of the described device consisting of a housing 1 with inlet 2 and 3 and exhaust 4 and 5 valves, with a bypass cylinder 6, a floating piston 7 consisting of left 8 and right 9 disks, between which a thrust cylinder is installed on the cylinder the ring 10 and the intermediate fluid 11, the supply system 12 and the outlet 13 and 14 liters of liquid and the automatic valve control system 15, including pressure sensors 16 and 17, are filled.

Полость между поршн ми 8 и 9 в верхнейCavity between pistons 8 and 9 at the top

части снабжена мерной емкостью 18 с краном,parts equipped with a measuring capacity of 18 with a crane,

св занной с системой давлени штуцером 19pressure connection fitting 19

с краном, а в нижней части имеет сливнойwith a tap, and at the bottom has a drain

штуцер 20.fitting 20.

Устройство работает следующим образом. Перед началом работы при запертом кране мерной емкости 18 открывают кран наThe device works as follows. Before starting work when the valve of the measuring tank 18 is locked, the valve is opened on

сливном штуцере 20, запирают клапаны 4 и 5, открывают клапаны 2 и 3 и подают жидкость в обе полости перепускного цилиндра. Избыточное давление сводит поршни 8 и 9 к упорному кольцу. После этого закрывают кран наdrain fitting 20, lock valves 4 and 5, open valves 2 and 3 and supply fluid to both cavities of the transfer cylinder. Excessive pressure reduces the pistons 8 and 9 to the stop ring. After that close the valve on

сливном штуцере 20, открывают кран на мерной емкости 18, заполн без давлени промелсуток между поршн ми, образованный упорным кольцом 10, и отмечают по мерной емкости 18 начало отсчета дозы. Затем запираютthe drain fitting 20, open the valve on the measuring tank 18, fill the gap between the pistons formed by the stop ring 10 without pressure and mark the beginning of the dose reading on the measuring tank 18. Then locked up

клапан 2, открывают клапан 4 и выдавливают под давлением жидкость 11 из мерной емкости в промежуток между поршн ми 8 и 9 в количестве , равном дозе, при этом поршень 8 отходит влево от упорного кольца 10 на некотороеvalve 2, open valve 4 and squeeze out under pressure the liquid 11 from the measuring tank into the interval between the pistons 8 and 9 in an amount equal to the dose, while the piston 8 moves to the left of the stop ring 10 for some

Claims

distance The valve on the measuring tank 18 is closed, and the valve 4 is closed. The device is ready to work in automatic mode. When the device is started, the valve 2 opens, water from the supply system 12 enters the left part of the non-drain cylinder 6, pressing the holes 8 and 9 to the extreme right position (up to the stop of the piston 8 in the stop ring 10), while the dose of liquid from the right side of the discharge cylinder 6 is equal to the displacement volume of the pistons, through the valve 5 enters the drainage system 14. After the pressure in the left part of the overflow cylinder 6 exceeds a certain level (to which the electrical contact pressure gauge is set), the contact pressure gauge 17 switches on the automatic regulating system 15, which locks the valves 2 and 5 and opens the valves 3 and 4 — the liquid begins to flow into the normal part of the overflow cylinder 6, pressing the pistons 8 and 9 to the extreme left position. At the same time, from the left side of the overflow cylinder 6 a dose of liquid through valve 4 enters the drainage system 13. After the pressure in the right side of the non-repetitive cylinder 6 switches on the contact of pressure gauge 16, the automatic control system 15 closes valves 3 and 4 and opens clans 2 and 5 The cycle is repeated. The pressure in a closed vessel (in the presence of air) corresponds to the amount of fluid in it, and in the absence of air it characterizes the filling, and this pressure tends to equalize with the pressure in the fluid supply system, which, in turn, must exceed the sum of piston friction losses in the cylinder, the fluid in the pipelines n local losses, as well as the pressure at the dispensing orifice. If there is a gas in both halves of a by-pass cylinder, a duct system such as a plunger, a capillary tube, etc. should be provided. Invention formula Pulse liquid dispenser containing a floating cylinder with a floating norm, a supply and discharge system with claps and an automatic valve control system, characterized in that, in order to control the performance of the device in direct dependence on the volume of liquid dispensed, the floating piston is made of two individual discs, the gap between which is filled with liquid, and the control system includes gauge sensors. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 145219, cl. G 01F 11/00, 1962.

2. A. L. Gurevich and M. V. Sokolov. "Pulsed systems for automatic metering of corrosive liquids, 1973, p. 24, fig. 14. 75