SU494608A1 - Membrane Dispenser - Google Patents

Membrane Dispenser

Info

Publication number
SU494608A1
SU494608A1 SU2019566A SU2019566A SU494608A1 SU 494608 A1 SU494608 A1 SU 494608A1 SU 2019566 A SU2019566 A SU 2019566A SU 2019566 A SU2019566 A SU 2019566A SU 494608 A1 SU494608 A1 SU 494608A1
Authority
SU
USSR - Soviet Union
Prior art keywords
membrane
gas
inlet
working
dosing
Prior art date
Application number
SU2019566A
Other languages
Russian (ru)
Inventor
Валерьян Петрович Закатов
Антонина Ивановна Кузнецова
Original Assignee
Специальное Конструкторское Бюро По Автоматике В Нефтепереработке И Нефтехимии
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Специальное Конструкторское Бюро По Автоматике В Нефтепереработке И Нефтехимии filed Critical Специальное Конструкторское Бюро По Автоматике В Нефтепереработке И Нефтехимии
Priority to SU2019566A priority Critical patent/SU494608A1/en
Application granted granted Critical
Publication of SU494608A1 publication Critical patent/SU494608A1/en

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Description

ру 13 при этом подаетс  дополнительное давление PZ, выход канала 7 закрыт, через проточную камеру 8 протекает газ-носитель.In this case, the pitch 13 is supplied with an additional pressure PZ, the exit of the channel 7 is closed, the carrier gas flows through the flow chamber 8.

Дл  ввода отдозированной иробы в поток газа-носител  подаетс  давление PI и снимаетс  давление р2. Клапаны 5 и 6 закрываютс , выход канала 7 в камеру 8 открываетс , отдозпрованный продукт из камеры 4 через канал / вытесн етс  в камеру 8, и поток газаносител  транспортирует пробу из камеры 8, например, в хроматографическую колонку. Далее давлени  PY и Р принимают исходные значени , выход канала 7 закрываетс , клапаны 5 и 6 открываютс , рабоча  камера дозировочной полости вновь заполн етс  продуктом , и дозатор готов к очередному циклу.In order to introduce the dosed iroba into the carrier gas flow, pressure PI is applied and pressure P2 is released. The valves 5 and 6 are closed, the exit of the channel 7 into the chamber 8 is opened, the withdrawn product from the chamber 4 is channeled through the channel 8 into the chamber 8, and the gas carrier stream transports the sample from chamber 8, for example, to a chromatographic column. Then, the pressures PY and P take the initial values, the exit of the channel 7 is closed, the valves 5 and 6 open, the working chamber of the dosing cavity is refilled with product, and the dosing unit is ready for the next cycle.

Предмет изобретени Subject invention

Claims (2)

1. Мембранный дозатор, преимущественно дл  дозировани  небольших объемов анализирз емой пробы в газовый хроматограф, содержащий дозировочную полость, разделенную мембраной на две камеры, одна из которых - управл юща  - соединена с линией подачи командного газа, а друга  - рабоча  - св зана через рабочие камеры пневматических клапанов со входом и выходом дозируемого продукта, отличающийс  тем, что, с целью повышени  точности дозировани , он снабжен дополнительным пневматическим клапаном, рабоча  камера которого соединена со входом и выходом газа-носител  и рабочей камерой дозировочной полости, а управл ющие камеры пневматических клапанов , установленных на входе и выходе дозируемого продукта, соединены с линией подачи командного газа.1. Membrane dosing unit, mainly for dosing small volumes of the analyzed sample into a gas chromatograph containing a dosing cavity divided by a membrane into two chambers, one of which — the controlling one — is connected to the command gas supply line, and the other — working gas — is connected through working pneumatic valve chamber with inlet and outlet of the product to be dosed, characterized in that, in order to improve metering accuracy, it is equipped with an additional pneumatic valve, the working chamber of which is connected to the inlet and you the flow of the carrier gas and the working chamber of the dosing cavity, and the control chambers of the pneumatic valves installed at the inlet and outlet of the product to be dosed are connected to the supply line of the command gas. 2. Дозатор по п. 1, отличающийс  тем, что рабоча  камера дополнительного клапана выполнена в виде срезанного тороида, ограниченного по плоскости среза мембраной.2. A dispenser according to claim 1, characterized in that the working chamber of the additional valve is made in the form of a cut toroid bounded in the plane of the cut by a membrane. п l У ..М з:Г p l W.M s: G J|/ На колонкуJ | / On column
SU2019566A 1974-04-25 1974-04-25 Membrane Dispenser SU494608A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2019566A SU494608A1 (en) 1974-04-25 1974-04-25 Membrane Dispenser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2019566A SU494608A1 (en) 1974-04-25 1974-04-25 Membrane Dispenser

Publications (1)

Publication Number Publication Date
SU494608A1 true SU494608A1 (en) 1975-12-05

Family

ID=20583098

Family Applications (1)

Application Number Title Priority Date Filing Date
SU2019566A SU494608A1 (en) 1974-04-25 1974-04-25 Membrane Dispenser

Country Status (1)

Country Link
SU (1) SU494608A1 (en)

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