JPS5713319A - Measuring instrument for liquid level - Google Patents
Measuring instrument for liquid levelInfo
- Publication number
- JPS5713319A JPS5713319A JP8881480A JP8881480A JPS5713319A JP S5713319 A JPS5713319 A JP S5713319A JP 8881480 A JP8881480 A JP 8881480A JP 8881480 A JP8881480 A JP 8881480A JP S5713319 A JPS5713319 A JP S5713319A
- Authority
- JP
- Japan
- Prior art keywords
- air
- valve
- high pressure
- tube
- supplying
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
- G01F23/16—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid
- G01F23/165—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid of bubbler type
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
PURPOSE:To make possible the stabilized measurement of a liquid level over a long period of time by allowing a gas purge tube to be readily rinsed. CONSTITUTION:When normal water level measurement is taken, a certain amount of flowing air is supplied to an air purge tube 5 through a constant air flux supplying system 3 from an air purge set 2 by shutting a high pressure air supplying valve 9 using a controlling device and opening a certain amount of air supplying valve 8 and a back pressure cut-off valve 11. The back pressure of the air purge gas tube 5 is transmitted to a differential pressure transmitter 7 through a back pressure system 6 to permit the level of filthy water W to be measured. In addition, the back pressure cut-off valve 11 is shut by the controlling device at certain time intervals and, at the same time, the certain amount of air supplying valve 8 is shut. Further, the high pressure air supplying valve 9 is opened, supplying the high pressure air from a high pressure air supplying source B to the air purge tube 5 through a bypass system 10. When the above-mentioned high pressure air is passing through the air purge tube 5, filth and solid matters attached to the inside surface of the air purge tube 5 are removed because of air pressure, thus cleaning the inside of the tube 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8881480A JPS5713319A (en) | 1980-06-30 | 1980-06-30 | Measuring instrument for liquid level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8881480A JPS5713319A (en) | 1980-06-30 | 1980-06-30 | Measuring instrument for liquid level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5713319A true JPS5713319A (en) | 1982-01-23 |
Family
ID=13953364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8881480A Pending JPS5713319A (en) | 1980-06-30 | 1980-06-30 | Measuring instrument for liquid level |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5713319A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60150426U (en) * | 1984-03-16 | 1985-10-05 | 株式会社 山東鉄工所 | Liquid level detection device |
| GB2391630A (en) * | 2002-07-31 | 2004-02-11 | Lintec Corp | Liquid level detector |
| KR100792756B1 (en) * | 2001-12-05 | 2008-01-11 | 주식회사 포스코 | Water Level Control Apparatus of Water Tank |
| JP2008157909A (en) * | 2006-11-27 | 2008-07-10 | Fuji Controls Co Ltd | Liquid level detection device of well |
| CN103871522A (en) * | 2012-12-11 | 2014-06-18 | 中国核动力研究设计院 | Pressurizer water level measurement method based on digitalization technology |
| CN107764361A (en) * | 2017-09-13 | 2018-03-06 | 美核电气（济南）股份有限公司 | Purging system and method for nuclear power station differential pressure measurement |
| CN108267192A (en) * | 2017-12-28 | 2018-07-10 | 中核四0四有限公司 | A kind of air blowing instrument pipeline blowback sweeping device and method |
| CN117889933A (en) * | 2024-03-15 | 2024-04-16 | 河南豫科先进技术研究有限公司 | Natural river channel water level monitoring device |
-
1980
- 1980-06-30 JP JP8881480A patent/JPS5713319A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60150426U (en) * | 1984-03-16 | 1985-10-05 | 株式会社 山東鉄工所 | Liquid level detection device |
| KR100792756B1 (en) * | 2001-12-05 | 2008-01-11 | 주식회사 포스코 | Water Level Control Apparatus of Water Tank |
| GB2391630A (en) * | 2002-07-31 | 2004-02-11 | Lintec Corp | Liquid level detector |
| JP2008157909A (en) * | 2006-11-27 | 2008-07-10 | Fuji Controls Co Ltd | Liquid level detection device of well |
| CN103871522A (en) * | 2012-12-11 | 2014-06-18 | 中国核动力研究设计院 | Pressurizer water level measurement method based on digitalization technology |
| CN107764361A (en) * | 2017-09-13 | 2018-03-06 | 美核电气（济南）股份有限公司 | Purging system and method for nuclear power station differential pressure measurement |
| CN107764361B (en) * | 2017-09-13 | 2024-04-30 | 美核电气（济南）股份有限公司 | Purging system and method for differential pressure measurement of nuclear power station |
| CN108267192A (en) * | 2017-12-28 | 2018-07-10 | 中核四0四有限公司 | A kind of air blowing instrument pipeline blowback sweeping device and method |
| CN117889933A (en) * | 2024-03-15 | 2024-04-16 | 河南豫科先进技术研究有限公司 | Natural river channel water level monitoring device |
| CN117889933B (en) * | 2024-03-15 | 2024-05-31 | 河南豫科先进技术研究有限公司 | Natural river channel water level monitoring device |
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