SU369403A1 - HEAT GAS FLOW METER - Google Patents

HEAT GAS FLOW METER

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Publication number
SU369403A1
SU369403A1 SU1452407A SU1452407A SU369403A1 SU 369403 A1 SU369403 A1 SU 369403A1 SU 1452407 A SU1452407 A SU 1452407A SU 1452407 A SU1452407 A SU 1452407A SU 369403 A1 SU369403 A1 SU 369403A1
Authority
SU
USSR - Soviet Union
Prior art keywords
flow meter
gas flow
heat gas
thermopile
flow
Prior art date
Application number
SU1452407A
Other languages
Russian (ru)
Inventor
К. А. Валентинович М. В. Данилин Г. М. Горчаков
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 filed Critical
Priority to SU1452407A priority Critical patent/SU369403A1/en
Application granted granted Critical
Publication of SU369403A1 publication Critical patent/SU369403A1/en

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Description

1one

Известные тепловые расходомеры газа, содержащие корпус, нагревательный и термочувствительный элемент, выполненный в виде питаемой переменным током и соединенной с измерительным прибором термобатареи, имеют малую чувствительность и недостаточные пределы измерени .The known thermal gas flowmeters, comprising a housing, a heating and thermosensitive element, made in the form of an alternating current fed and connected to a measuring instrument thermopile, have low sensitivity and insufficient measuring limits.

Дл  расширени  пределов измерени  и повышени  чувствительности в предлагаемом расходомере корпус разделен на две полости: с потоком газа и изолированную от потока, в которых соответственно помеш,ены четные и нечетные спаи термобатареи.In order to expand the limits of measurement and increase the sensitivity in the proposed flow meter, the housing is divided into two cavities: with a gas flow and isolated from the flow, in which, respectively, an even and odd thermopile junction is located.

На чертеже показана принципиальна  схема предложенного расходомера.The drawing shows a schematic diagram of the proposed flow meter.

Корпус 1 расходомера разделен перегородкой 2 на две полости 3 и 4. По полости 3 протекает измер емый поток газа, а полость 4 изолирована от него.The housing 1 of the flow meter is divided by a partition 2 into two cavities 3 and 4. A measured gas flow flows through cavity 3, and cavity 4 is isolated from it.

В корпус 1 помеш,ена термобатаре  5, четные спаи которой наход тс  в полости 3, а нечетные - в полости 4. Термобатаре  5  вл етс  нагревательным элементом, питаемым переменным током от источника питани  6 через конденсатор 7. При движении газа четные спаи термобатареи 5 охлаждаютс  потокомEnclosure 1 is placed in a thermopile 5, even junctions of which are in cavity 3, and odd ones in cavity 4. Thermopile 5 is a heating element fed by alternating current from power source 6 through a capacitor 7. When the gas moves, even thermocouple junctions cooled by flow

газа, а нечетные не охлаждаютс . Охлаждение четных спаев пропорционально скорости (или расхода) газа. Разница температур четных и нечетных спаев вызывает по вление термоэ.д.с., котора  через фильтр 8 подводитс  к измерительному прибору 9. Конденсатор 7 и фильтр 6 служат дл  выделени  посто нной составл ющей напр жени  на термобатарее 5.gas, and the odd ones are not cooled. The cooling of even junctions is proportional to the velocity (or flow rate) of the gas. The temperature difference between the even and odd junctions causes the appearance of thermal emf., Which through the filter 8 is supplied to the measuring device 9. The capacitor 7 and the filter 6 serve to separate the constant component of the thermopile 5.

Предмет изобретени Subject invention

Тепловой расходомер газа, содержащий корпус , нагревательный и термочувствительный элемент, выполненный в виде питаемой переменным током и соединенной с измерительным прибором термобатареи, помещенной в контролируемый поток газа, протекающий по герметичному корпусу, отличающийс  тем, что, с целью расщирени  пределов измерени  и повышени  чувствительности, корпус разделен на две полости: с потоком газа и изолированную от потока, в которых соответственно помещены четные и нечетные спаи термобатареи .A heat flow meter comprising a housing, a heating and thermosensitive element made in the form of an alternating current fed and connected to a measuring instrument thermopile placed in a controlled gas flow flowing through a sealed enclosure, characterized in that, in order to extend the measurement limits and increase sensitivity, the case is divided into two cavities: with a gas flow and isolated from the flow, in which even and odd thermopile junctions are respectively placed.

SU1452407A 1970-06-23 1970-06-23 HEAT GAS FLOW METER SU369403A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1452407A SU369403A1 (en) 1970-06-23 1970-06-23 HEAT GAS FLOW METER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1452407A SU369403A1 (en) 1970-06-23 1970-06-23 HEAT GAS FLOW METER

Publications (1)

Publication Number Publication Date
SU369403A1 true SU369403A1 (en) 1973-02-08

Family

ID=20454424

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1452407A SU369403A1 (en) 1970-06-23 1970-06-23 HEAT GAS FLOW METER

Country Status (1)

Country Link
SU (1) SU369403A1 (en)

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