SU628443A1

SU628443A1 - Flow signalling device

Info

Publication number: SU628443A1
Application number: SU742036125A
Authority: SU
Inventors: Ждони Антонович Моран; Ирик Хунсутдинович Субаев; Ким Саитгареевич Фазлутдинов; Илья Андреевич Лиходед
Original assignee: Moran Zhdoni A; Subaev Irik Kh; Fazlutdinov Kim S; Likhoded Ilya A
Priority date: 1974-05-17
Filing date: 1974-05-17
Publication date: 1978-10-15

Description

Изобретение относитс к области измерительной техники и может быть исполь зовано в нефтедобывающей промышленности .The invention relates to the field of measurement technology and can be used in the oil industry.

Известны устройства дл контрол потоков жидкости илн газа в системах CHIV нализации, содержащие электромеханическую систему, поворотную заслонку, силовой потокочувствителы1ый привод и электропневмобЕлапан , вьшолн ющнй роль вы- ключател потока ij, 2j.Devices are known for controlling the flow of liquid or gas in CHIV filling systems, containing an electromechanical system, a butterfly valve, a power flow sensitive actuator and an electropneumatic actuator, the exact role of a flow switch ij, 2j.

Недостатками этих устройств вл ютс низка точность, надежность и cлoжнoчJTЬ схемы сигнализации исследуемых потоков среды.The disadvantages of these devices are low accuracy, reliability, and the complexity of the signaling circuitry of the medium flows under study.

Ближайшим по технической сущности к изобретению вл етс сигнализатор га- зожидкостного потока, содержащий корпус нагреватель, термочувствительные элементы в виде термосопротивлеиий, электронны1й блок и элементы индикации .The closest to the technical essence of the invention is a gas-liquid flow detector, comprising a heater body, thermal-resistance elements in the form of thermal resistances, an electronic unit and display elements.

Однако это устройство недостаточно надежно и сложно конструктивно. Это определ етс наличием электронного вторичного блока системы тепловой термо- However, this device is not sufficiently reliable and structurally difficult. This is determined by the presence of the electronic secondary unit of the thermal thermal system.

компенсаоииг который в услови х колебаний температуры окружагсшей среды имеет сушественный разброс своих параметров, что приводит к ложным срабатывани м сигнализатора потока. Кроме того, в сиг иализаторе конструктивно занижено рабочее сечение термочувствительных элементов (теплового датчика), что затрудн ет Иаладку устройства и его эксплуатацию.under the conditions of temperature fluctuations of the surrounding medium, there is an essential scatter of its parameters, which leads to false alarms of the flow detector. In addition, in the signalizer, the working section of temperature-sensitive elements (thermal sensor) is structurally understated, which makes it difficult for the device to operate and operate.

Целью изобретени вл етс упрошё-. ние конструкции сигнализатора потока и повышение надежности.The aim of the invention is to simplify. design of the flow detector and increased reliability.

Это достигаетс выполнением в предлагаемом сигнализаторе термочувствительных элементов в виде кольцевых термо 1 баллонов, плотно облегающих корпус сиг нализатора, заполненных веществом со значительным коэффициентом объемного расширени и соединенных в две герметичные системы с соответствующими сильфонами .This is achieved by performing in the proposed signaling device thermosensitive elements in the form of annular thermo 1 cylinders tightly fitting the body of the analyzer filled with a substance with a significant coefficient of volume expansion and connected into two hermetic systems with corresponding bellows.

Claims

The drawing shows a scam principle of the described flow detector, comprising a housing 1, on which a heater 2 with an electrically INSULATED sheath 3, an upper and lower heat conduit 4, transmitting the temperature measurement to the annular bulb 6, and a casing 6 is fixed. The space between the housing 1 and the housing is filled thermal insulation materials 7. The cavity of the annular thermoballoons is connected to the cavity of the bellows (right and left) 8 by means of tubes 9, forming two closed, one of which is working, resistant to the upper ring thermocable 5, tube 9 and left bellows 8. The second system - thermocompensation consists of 1 outer ring thermocable 5, tube 9 in the right bellows 8. On the left side there is a prip plate 1O on which a screw 11 is fixed on its plate button to the top of the right SELF. The microswitch is tapped into a vep. signaling with wires through the terminal strip 13. Both svlfona secured to the base 14, mounted in the box 15, coinciding with the casing on the one side through the pipe 16 and the coupling 17, and on the other hand - the coupling 18 with pipe wiring 19 in which the passage ton of heater power supply and alarm circuit. To separate the cavities of the corsaki 15 and the sensor itself, a partition wall 2O is installed. The flow cigar works in the following way. Dvvzheve flow liquid is shown by the arrow. Sistemd, ssyutovshvv of the annular thermal system {a 5, tube 9, sflfona 8, podshena YoV11 ohm with a high coefficient of the total expanded. When the temperature of a substance changes in a ring in a ring, the heat of a thermowatt 5 changes 1H in the system, which leads to stretching or squeezing. In the Econstructions, two hermetic pressure-impacted systems are used, in which the left and right bellows of the 19 bellows are identical for all the existing textures. These conditions are observed in the presence of n ") current, which is practically dispersed by -reiuto, exceeding (hehe

2. In case of equal temperatures of the suspension in the working, and temperature-compensating systems (regardless of its absolute value within the operating limits), the microtransmitter 12 is in the closed state. In the case of flow in the pipeline, the heater 2 with a certain time lag warms up the section of the housing 1 and the upper annular thermal bulb 5 An increase in pressure in the working system will lead to expansion of the left bellows and, consequently, upward movement of the microswitch 12, which opens its normally open contact, since the right bellows remains fixed. The latter condition is provided by selecting the distance from it of the annular thermal bulb 5 to the heater element 2, the material of the housing and the power of the heater. The presence of heat lines 4 and heat insulating material 7 makes it possible to minimize the influence of external heat fluxes on the normal operation of the detector. Claims of flow indicator, comprising a housing, a heater, thermal elements, characterized in that, in order to simplify the construction of improving reliability, the thermal sensors are made of thermocylinders, filled with liquid and connected in two sealed systems with corresponding bellows. Sources of information taken into account in the examination: i.CtfiappuEini T.Pfecisiow, i ideEidre estabiEite a. M. qiERe J.C., t) eco (uE4ite P.bes Onchchev dee svstewes asset vie. Dutttfa, 1969, pp 395. a. US Patent No. 3.438.254, CL 200-819. 1970.

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