SU658525A1

SU658525A1 - Pneumatic regulator with return zone

Info

Publication number: SU658525A1
Application number: SU772550388A
Authority: SU
Inventors: Алексей Васильевич Зорин; Станислав Борисович Израилев
Original assignee: Предприятие П/Я А-1619
Priority date: 1977-12-02
Filing date: 1977-12-02
Publication date: 1979-04-25

Description

(54) ПНЕВМАТИЧЕСКИЙ РЕГУЛЯТОР С ЗОНОЙ ВОЗВРАТА(54) PNEUMATIC REGULATOR WITH RETURN AREA

Изобретение относитс к приборостроению , а именно к пневматическим регул торам с зоной возврата.This invention relates to instrumentation engineering, in particular to pneumatic regulators with a return zone.

Известны пневматические регул торы с зоной возврата 1.Known pneumatic regulators with a return area of 1.

Наиболее близким по техническому решению к предлагаемому вл етс пневматический регул тор с зоной возврата, содержащий элемент сравнени , плюсова камера которого соединена с входным каналом, минусова непосредственно с проточной камерой первого одномембранного задающего элемента и через первый дроссель с каналом питани , и второй одномембранный задаквдий элемент 2.The closest technical solution to the present invention is a pneumatic regulator with a return zone containing a comparison element, the plus chamber of which is connected to the inlet channel, the negative one directly to the flow chamber of the first single-membrane driver element and through the first choke with the feed channel, and the second single-membrane control element 2

В предлагаемом регул торе дл упрощени конструкции установлен второй дроссель, причем выходной канал регул тора св зан через второ дроссель с каналом питани и через первое сопло элемента сравнени с атмосферой, минусова камера через второе сопло соединена с проточной камерой второго одномембранного задающего элемента.In the proposed controller, to simplify the design, a second choke is installed, the regulator output channel is connected through the second choke to the power channel and through the first nozzle of the comparison element to the atmosphere, the negative chamber is connected to the flow chamber of the second single-membrane master element through the second nozzle.

На чертеже приведена принципиальна схема предлагаемого регул тора.The drawing shows a schematic diagram of the proposed controller.

Регул тор содержит элемент сравнени 1, первый 2 и второй 3 одно2The regulator contains the element of comparison 1, the first 2 and the second 3 single2

мембранные задающие элементы, первой 4 и второй Б дроссели.membrane driver elements, the first 4 and second B chokes.

Плюсова камера элемента сравнени 1 соединена с входным каналом Pgjj , минусова камера св зана неп средственно с проточной камерой первого одномембранного задающе элемента 2 и через дроссель 4 с каналом питани через второе сопло с проточной камерой второго одномембранного задающего элемента 3. Выходной канал Р регул тора св зан через второй дроссель 5 с каналом питани и через первое соплоThe plus chamber of reference element 1 is connected to the input channel Pgjj, the negative camera is connected directly to the flow chamber of the first single-membrane driver element 2 and through the throttle 4 to the power channel through the second nozzle with the flow chamber of the second single-membrane master element 3. through the second choke 5 with the feed channel and through the first nozzle

с атмосферой.with the atmosphere.

Регул тор работает следующим образом.The regulator works as follows.

Пока входной сигнал, увеличива сь, остаетс меньше давлени верхнейWhile the input signal, increasing, remains less than the pressure of the upper

гранихда, настраиваемого с помощью элемента 2, выходной сигнал регул тора имеет значение логический нуль .limit set by element 2, the output of the controller is a logical zero.

При совпадении входного сигналаWhen the input signal matches

Claims

with the pressure of the upper boundary, the first nozzle closes and the second opens. Accordingly, the output signal takes on the value of a logical unit, and in the common channel connecting the flow chambers of the elements tAI "f P1, Mt4,. 3 - ---; - - 2 and 3, included: according to the minimum selection scheme, the lower boundary pressure is determined, determined by the setting of element 3. With a further change of the input signal, the change of state at the regulator output is possible only when the input signal decreases to the bottom border. In comparison with the well-known in the proposed controller, a throttle is used instead of a two-membrane valve, which simplifies the design of the controller as a whole. A pneumatic regulator with a return zone, containing a comparison element, the plus chamber of which is connected to the inlet channel, and the negative one directly with the flow chamber of the first single-membrane back end element and through the first choke with the feed channel, the second single-membrane defining element, differing from that, in order to simplify the regulator, a second choke is installed in it, and the regulator's output channel is connected, through the second choke, to the power channel and through the first nozzle of the comparison element with by the atmosphere, the minus chamber of the reference element is connected through the second nozzle to the flow chamber of the second single-membrane reference element. Sources of information taken into account during the examination 1. DEVICE regulating type 1.6, technical description and operating instructions, M., Tizpribor, 1977.

2. Copyright certificate of the USSR 525926, kl.eoZ B 11/54 /