SU428216A1 - Calorimeter flowmeter - Google Patents
Calorimeter flowmeterInfo
- Publication number
- SU428216A1 SU428216A1 SU1804673A SU1804673A SU428216A1 SU 428216 A1 SU428216 A1 SU 428216A1 SU 1804673 A SU1804673 A SU 1804673A SU 1804673 A SU1804673 A SU 1804673A SU 428216 A1 SU428216 A1 SU 428216A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- calorimeter
- flowmeter
- heaters
- flow
- shaped
- Prior art date
Links
Description
1one
Изобретение относитс к области измерени расхода газа и жидкостей.The invention relates to the field of measuring the flow of gas and liquids.
Известны калориметрические расходомеры с тепловым преобразователем, выполнеииым в виде нагревател с термочувствительным элементами, установленным на U-образном трубопроводе.Known calorimetric flow meters with a heat converter, performed in the form of a heater with heat-sensitive elements installed on a U-shaped pipeline.
Предложенный расходомер, по сравнению с известным, позвол ет повысить чувствительность и точность измерени .The proposed flow meter, in comparison with the known, allows to increase the sensitivity and accuracy of measurement.
Это достигаетс тем, что расходомер снабжен дополнительным тепловым преобразователем , каждый из которых расположен на пр мых участках U-образного трубопровода , при этом нагреватели соединены электрически последовательно, термочувствительные элементы, расположенные до нагревателей , включены в одно плечо моста, а термочувствительные элементы, расположенные после нагревателей, - в другое плечо моста.This is achieved by the fact that the flow meter is equipped with an additional heat transducer, each of which is located on straight sections of the U-shaped pipeline, while the heaters are connected electrically in series, the temperature-sensitive elements located before the heaters are included in one shoulder of the bridge heaters, - to the other shoulder of the bridge.
На чертеже представлен описываемый тепловой расходомер, состо щий из термовыравннваюп ,его основани /, U-образного измерительного трубопровода 2, герметизирующего кожуха 3 с уткой 4 дл вакуумировани , двух электронагревателей 5 и 5, четырех термометров сопротивлени 6, 6 и 7, 7The drawing shows the described heat flow meter consisting of a thermovariant, its base / U-shaped measuring pipe 2, a sealing casing 3 with duck 4 for evacuation, two electric heaters 5 and 5, four resistance thermometers 6, 6 and 7, 7
Из чертежа видно, что в предлагаемом расходомере применены два тепловых пол , создаваемых электронагревател ми 5 и 5. Деформаци этих экстремальных тенловыхFrom the drawing it can be seen that in the proposed flow meter two thermal fields are applied, created by electric heaters 5 and 5. The deformation of these extreme tenlow
полей, контролируемых материальным потоком , измер етс термометрами сопротив.тени 6 и 7, которые включены в мостовую измерительную схему. Дл устранени вли ни колебаний температуры и конвективных тепловых потоков виещней среды особенно при их несимметрии на величину полезного сигнала U-образный трубопровод 2 заключен в закрытый объем. Иоследний вакуумпруетс через утку 4 с расплавленным оловом, послеfields controlled by the material flow are measured by resistance thermometers 6 and 7, which are included in the pavement measuring circuit. To eliminate the effect of temperature fluctuations and convective heat fluxes of the outer medium, especially when they are asymmetrical on the value of the useful signal, the U-shaped conduit 2 is enclosed in a closed volume. The latter is vacuumed through duck 4 with molten tin, after
застывани которого объем полностью герметизируетс .the solidification of which volume is completely sealed.
При движении потока через L-образный трубопровод симметри экстремального теплового пол , создаваемого нагревателем 5, нарушаетс , максимум температуры сдвигаетс к термометру сопротивлени 6, который нагреваетс , а термометр соиротивлени 6 охлаждаетс .When the flow through the L-shaped pipe, the symmetry of the extreme thermal field created by the heater 5 is broken, the maximum temperature is shifted to the resistance thermometer 6, which is heated, and the synchronization thermometer 6 is cooled.
Разность температур между этими термометрами сопротивлени пропорциональна величине расхода KOHTpOvTHpyeMoro материального потока. Аналогичный процесс происходит и на участке с нагревателем 5.The temperature difference between these resistance thermometers is proportional to the KOHTpOvTHpyeMoro material flow rate. A similar process occurs in the area with a heater 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1804673A SU428216A1 (en) | 1972-07-04 | 1972-07-04 | Calorimeter flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1804673A SU428216A1 (en) | 1972-07-04 | 1972-07-04 | Calorimeter flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU428216A1 true SU428216A1 (en) | 1974-05-15 |
Family
ID=20520185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1804673A SU428216A1 (en) | 1972-07-04 | 1972-07-04 | Calorimeter flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU428216A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5309762A (en) * | 1989-11-27 | 1994-05-10 | Stec Inc. | Mass flowmeter with hermetically sealed housing |
-
1972
- 1972-07-04 SU SU1804673A patent/SU428216A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5309762A (en) * | 1989-11-27 | 1994-05-10 | Stec Inc. | Mass flowmeter with hermetically sealed housing |
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