SU634134A1 - Differential pressure measuring device - Google Patents
Differential pressure measuring deviceInfo
- Publication number
- SU634134A1 SU634134A1 SU762330446A SU2330446A SU634134A1 SU 634134 A1 SU634134 A1 SU 634134A1 SU 762330446 A SU762330446 A SU 762330446A SU 2330446 A SU2330446 A SU 2330446A SU 634134 A1 SU634134 A1 SU 634134A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- glycol
- working fluid
- differential pressure
- measuring device
- pressure measuring
- Prior art date
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Description
Изобретение относитс к утстройствам дл измерени разности давлений, предназначенных дл {заботы в широком диапазоне температур окружающей среды. В одном из известных устройств аналогичного назначени дп заполнени мем бранного бпока используетс р д спиртов со специальными добавками . В другом устройстве дл заполнени мембранного блока используетс кремнеорганическа жидкость 21 , Однако используемые дл заполнени мембранных блоков жидкости не обеспечивают работу устройств в широком диапазоне изменени температур окружающей среды. Цель изобретени - расширение области рабочих температур устройств дл измерени разности давлений. Поставленна цель достигаетс тем, что в устройстве дл измерени разности давлений, содержащем корпус, мембранный блок, внутренн полость которого заполнена рабочей жидкостью, и апектрический преобразователь, в качестве рабочей жидкости использован 28-69%-ньгй водный раствор этиленгликол . Процентное содержание по объему втиленгликол в дистиллированной воде выбирают в зависимости минусовых температур окружакшей среды по следующей таблице.The invention relates to devices for measuring pressure differences intended to {care in a wide range of ambient temperatures. In one of the known devices of similar purpose, dp filling the membrane is used a number of alcohols with special additives. In another device, the organosilicate liquid 21 is used to fill the membrane unit. However, the fluids used to fill the membrane units do not ensure the operation of the devices in a wide range of ambient temperatures. The purpose of the invention is to expand the operating temperature range of devices for measuring pressure difference. This goal is achieved by the fact that in the device for measuring the differential pressure, comprising a housing, a membrane unit, the internal cavity of which is filled with a working fluid, and an apectric transducer, 28-69% ethylene glycol aqueous solution is used as the working fluid. The percentage by volume of glycol glycol in distilled water is chosen depending on the sub-zero temperatures of the surrounding medium according to the following table.
Содержание ©тиленгликол , %Content © thylene glycol,%
59-6359-63
65-6965-69
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762330446A SU634134A1 (en) | 1976-03-09 | 1976-03-09 | Differential pressure measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762330446A SU634134A1 (en) | 1976-03-09 | 1976-03-09 | Differential pressure measuring device |
Publications (1)
Publication Number | Publication Date |
---|---|
SU634134A1 true SU634134A1 (en) | 1978-11-25 |
Family
ID=20650910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762330446A SU634134A1 (en) | 1976-03-09 | 1976-03-09 | Differential pressure measuring device |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU634134A1 (en) |
-
1976
- 1976-03-09 SU SU762330446A patent/SU634134A1/en active
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