SU369403A1 - HEAT GAS FLOW METER - Google Patents
HEAT GAS FLOW METERInfo
- 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
Links
Landscapes
- Measuring Volume Flow (AREA)
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.
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) |
-
1970
- 1970-06-23 SU SU1452407A patent/SU369403A1/en active
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