JPS568522A - Measuring device for leak water quantity - Google Patents
Measuring device for leak water quantityInfo
- Publication number
- JPS568522A JPS568522A JP8569979A JP8569979A JPS568522A JP S568522 A JPS568522 A JP S568522A JP 8569979 A JP8569979 A JP 8569979A JP 8569979 A JP8569979 A JP 8569979A JP S568522 A JPS568522 A JP S568522A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water quantity
- memory
- region
- leak
- 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
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
PURPOSE: To know the leak water quantity at each region as well as facilitate an easy detection for the water leak area, by carrying out the piping through the region division in order to grasp the minimum water quantity used in a day and thus measuring the minimum water quantity used per day for each region.
CONSTITUTION: The water quantity flowing into region A1 is measured by flowmeter 1, and the sampled measurements of the water quantity is compared with the memory value of memory 4 by comparator 3 and through sampling device 2. And the smaller value is stored newly. In other words, the minimum value is always stored in memory 4. In the case of a house demanding the water supply, the water flows through flowmeter 1 only when the water is used. Thus the water supply pattern is like (a). With increment of the demand, the pattern varies to (b)→(c)→ (d) which lack the zero-time band. Accordingly, the number of the demand houses is set to a proper amount, and the water supply pattern is set like (d). At the same time, flow rate measuring device C1 is set so that it shows zero only in a certain time t0, and the sampling cycle is set smaller than t0. As a result, the contents of memory 4 become to zero. In such way, the leak water quantity can be measured by reading the contents of memory 4.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8569979A JPS568522A (en) | 1979-07-03 | 1979-07-03 | Measuring device for leak water quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8569979A JPS568522A (en) | 1979-07-03 | 1979-07-03 | Measuring device for leak water quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS568522A true JPS568522A (en) | 1981-01-28 |
Family
ID=13866067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8569979A Pending JPS568522A (en) | 1979-07-03 | 1979-07-03 | Measuring device for leak water quantity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS568522A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5860236A (en) * | 1981-05-06 | 1983-04-09 | ナツト・メイヤ− | Method and device for detecting leakage of fluid |
| FR2690525A1 (en) * | 1992-04-28 | 1993-10-29 | Sarrazin Jean Pierre | Leak detecting appts e.g for water mains - using turbine flowmeter to generate pulses which indicate leak if they persist beyond preset time |
| WO2015063931A1 (en) * | 2013-10-31 | 2015-05-07 | 株式会社日立製作所 | Water-leak detector, water-leak detection system, and water-leak detection method |
-
1979
- 1979-07-03 JP JP8569979A patent/JPS568522A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5860236A (en) * | 1981-05-06 | 1983-04-09 | ナツト・メイヤ− | Method and device for detecting leakage of fluid |
| FR2690525A1 (en) * | 1992-04-28 | 1993-10-29 | Sarrazin Jean Pierre | Leak detecting appts e.g for water mains - using turbine flowmeter to generate pulses which indicate leak if they persist beyond preset time |
| WO2015063931A1 (en) * | 2013-10-31 | 2015-05-07 | 株式会社日立製作所 | Water-leak detector, water-leak detection system, and water-leak detection method |
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