SU851138A1

SU851138A1 - Differential hydrostatic pressure relay

Info

Publication number: SU851138A1
Application number: SU792860132A
Authority: SU
Inventors: Юдко Шмулевич Слепой; Аркадий Ильич Слабов
Priority date: 1979-12-27
Filing date: 1979-12-27
Publication date: 1981-07-30

Description

Изобретение относится к устройствам для автоматизации работы установок трубопроводного транспорта, в частности контроля и управления _ процессами гидротранспортирования ³ сыпучих материалов.The invention relates to devices for automating the operation of installations of pipeline transport, in particular monitoring and control _ processes of hydrotransport ³ bulk materials.

Известно устройство - ртутное реле вакуума, выполненное в виде U-образной трубки, содержащей ртуть, которая замыкает цепи максимального и ι минимального контактов, введенных в трубку [1j.A device is known - a mercury vacuum relay, made in the form of a U-shaped tube containing mercury, which closes the circuit of the maximum and ι minimum contacts introduced into the tube [1j.

Известно устройство, которое содержит две вертикальные трубки, соединенные между собой в одну и-образ- 15 ную или же опущенные обе в открытый сосуд (цилиндр), заполненный электропроводной жидкостью или рутутью, которая, поднимаясь по трубкам под действием перепада давления, замыка- 20 ет неподвижные встроенные в трубки контакты электроцепи управления [2].A device is known that contains two vertical tubes interconnected in a single i-shaped 15 or both lowered into an open vessel (cylinder) filled with an electrically conductive liquid or mercury, which, rising through the tubes under the influence of a pressure drop, closes It has motionless control circuit contacts built into the tubes [2].

В этих устройствах регулирование уровня порога срабатывания произво- 25 дится передвижением по вертикали резервуара, в котором встроен неподвижный контакт, а именно подъемом либо опусканием его относительно двух параллельных трубок, в одной из> 30 которых встроен второй неподвижный контакт.In these devices, the threshold level is controlled by moving vertically the tank in which the fixed contact is built-in, namely by raising or lowering it relative to two parallel tubes, one of which> 30 has a second fixed contact.

Недостатком реле давления с таким способом регулирования момента срабатывания является сложность выполнения устройства.The disadvantage of the pressure switch with this method of controlling the response time is the complexity of the device.

, Цель изобретения - упрощение конструкции., The purpose of the invention is to simplify the design.

Для достижения поставленной цели в дифференциальном гидростатическом реле давления, содержащем и-обраэную емкость с электропроводной жидкостью, контакты сигнальной электроцепи, один из которых укреплен в стенке указанной емкости, и шкалу, второй контакт сигнальной электроцепи закреплен на изолированном тросе-проводнике, встроенном в емкость с возможностью перемещения вдоль нее и связанном со шкалой через верьерное устройство.To achieve this goal in a differential hydrostatic pressure switch containing an i-shaped capacitance with an electrically conductive liquid, contacts of the signal circuit, one of which is mounted in the wall of the tank, and a scale, the second contact of the signal circuit is mounted on an insulated cable-conductor built into the tank with the ability to move along it and associated with the scale through the fan device.

На чертеже изображено предлагаемое реле давления, общий вид.The drawing shows the proposed pressure switch, General view.

Реле состоит из U-образной трубки 1, заполненной до определенного уровня электропроводкой жидкостью или ртутью 2. Верхние концы трубки снабжены сальниковым уплотнением, через которое вовнутрь трубки проходит 'гибкий покрытый изоляцией трос-про- .The relay consists of a U-shaped tube 1, filled to a certain level with liquid or mercury 2 electrical wiring. The upper ends of the tube are equipped with a packing gland, through which a “flexible coated insulation-cable passes through the inside of the tube.

водник 3, в котором вмонтирован контакт 4 электроцепи, встроенный в емкость с возможностью перемещения вдоль нее, а второй контакт 5 неподвижен и встроен в нижней части трубки. Концы троса-проводника закреплены на барабане верньерного устройства 6, связанного со стрелкой лимба 7 показывающего прибора и имеющего ручку 8.water tank 3, in which the contact 4 of the electric circuit is mounted, which is built-in to the tank with the ability to move along it, and the second contact 5 is fixed and built into the bottom of the tube. The ends of the conductor cable are fixed to the drum of the vernier device 6, connected with the arrow of the dial 7 of the indicating device and having a handle 8.

Реле работает следующим образом, При вращении верньерной ручки 8 переминается трос-проводник и с ним вмонтированный в него контакт 4. По шкале лимба устанавливается перепад давления, который должно сигнализировать реле. Когда перепад давления жидкости поднимает ртуть до заданного уровня,ртуть замыкает'электроцепь, в результате' токолый сигнал поступает в сигнальное устройство системы автоматики. Для перемещения порога срабатывания при изменении режима работы гидротранспортной установки достаточно повернуть ручку барабанаThe relay operates as follows: When the vernier handle 8 is rotated, the cable conductor is switched and contact 4 is mounted with it. The differential pressure is set on the dial scale, which should signal the relay. When the differential pressure of the liquid raises the mercury to a predetermined level, the mercury closes the circuit, as a result of which the signal enters the signal device of the automation system. To move the response threshold when changing the operating mode of the hydrotransport installation, simply turn the drum handle

ВНИИПИ Заказ 6317/56VNIIIPI Order 6317/56

Тираж 907 ПодписноеCirculation 907

Филиал ППП Патент,Branch of PPP Patent,

г.Ужгород, ул. Проектная, 4 верньера и установить ее на требуемое деление по шкале лимба.Uzhhorod, st. Design, 4 vernier and set it to the required division on the dial scale.

Claims

The invention relates to devices for automating the operation of pipeline transport installations, in particular, monitoring and controlling the hydrotransport of bulk materials. A device is known - mercury vacuum relays, made in the form of a U-oC different tube containing mercury, which closes the circuit of the maximum and minimum contacts inserted into the tube 1i. A device is known which contains two vertical tubes interconnected in the same I-tube or lowered both into an open vessel (cylinder) filled with an electrically conductive liquid or rutut, which, rising through the tubes under the action of pressure differential, closes the stationary embedded in tube control circuit contacts 2. in these devices, the adjustment of the trigger threshold level is made by moving along the vertical tank of the tank, in which the fixed contact is embedded, namely raising or lowering it tnositelno two parallel tubes, one of which is integrated a second stationary contact. The disadvantage of a pressure switch with this method of controlling the tripping moment is the complexity of the device. The purpose of the invention is to simplify the design. To achieve this goal, in a differential hydrostatic pressure switch, containing an i-shaped capacitance with an electrically conducting fluid, contacts of a signal circuit, one of which is fixed in the wall of the indicated capacitance, and a scale, the second contact of the signal circuit is fixed on an insulated conductor built in into the container with the possibility of movement along it and connected with the shchet through the device. The drawing shows the proposed pressure switch, a general view. The relay consists of an i-shaped tube 1, filled up to a certain level with an electrically conductive liquid or mercury 2. The upper ends of the tube are equipped with a gland seal through which a flexible insulated cable pro- comes inside. a water guide 3, in which a contact 4 of the electrical circuit is built in, which is built into the tank so that it can move along it, and the second contact 5 is fixed and embedded in the lower part of the tube. The ends of the cable conductor are fixed on the drum of the vernier device 6 connected with the arrow of the limb 7 of the indicating device and the handle 8. The relay works as follows. When the vernier handle 8 is rotated, the tCOC conductor intersects and the contact 4 mounted on it. On a scale of limb a pressure differential is set, which should signal a relay. When the differential pressure of the liquid raises the mercury to a predetermined level, the mercury closes the electrical circuit, as a result, the current signal goes to the alarm device of the automation system. To move the threshold when changing the mode of operation of the hydrotransport unit, simply turn the knob of the vernier drum and set it to the required division on the dial scale. Differential hydrostatic pressure switch containing an I-shaped container with an electrically conductive fluid, contacts of a signal circuit, one of which is fixed in the wall of the indicated capacity, and a scale that is designed to simplify the design, the second stage of signal The electrical circuit is attached to an insulated cable conductor embedded in a tank that can be moved along it and connected to the scale through a vernier device. Sources of information taken into account during the examination 1. USSR author's certificate number 65299, cl. G 01 L 21/00, 16.11.44,

2. US patent 2393201, cl. 200-81.6. 01/15/46 (prototype), 7