CN202471146U - Rapid flow-measuring water meter - Google Patents
Rapid flow-measuring water meter Download PDFInfo
- Publication number
- CN202471146U CN202471146U CN2012200798287U CN201220079828U CN202471146U CN 202471146 U CN202471146 U CN 202471146U CN 2012200798287 U CN2012200798287 U CN 2012200798287U CN 201220079828 U CN201220079828 U CN 201220079828U CN 202471146 U CN202471146 U CN 202471146U
- Authority
- CN
- China
- Prior art keywords
- magnetic switch
- water meter
- rotatable part
- flow
- measuring water
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a rapid flow-measuring water meter. The rapid flow-measuring water meter comprises a rotatable part and a measurement circuit, wherein a permanent magnet is placed on the rotatable part, the speed-measuring circuit comprises a magnetic switch and a timing measurement element, and the magnetic switch is arranged on the motion trail of the permanent magnet. The measurement method of the rapid flow-measuring water meter includes the following steps: (1) the permanent magnet on the rotatable part rotates to the position of the magnetic switch, the magnetic switch pulls in, and the timing measurement element begins to time; (2) the permanent magnet on the rotatable part leaves the position of the magnetic switch, the magnetic switch is off, and the timing measurement element stops timing; and (3) the rotating speed of the rotatable part is calculated according to the pull-in time of the magnetic switch and the pull-in time is recorded by the timing measurement element, and therefore an instant flow can be calculated because the rotatable part rotates a circle to stand for a fixed amount of water. The rapid flow-measuring water meter can measure instant flow when the rotatable part rotates a circle, so that a rapid measurement of flow can be realized.
Description
Technical field
The utility model relates to the tolerance field, particularly a kind of water meter of quick measurement flow and measuring method thereof.
Background technology
The method that water meter commonly used is at present measured flow is that the rotation number of turns of the water meter rotatable parts in the unit interval is calculated mean flow rate; The normal structure that adopts is that rotatable parts are half black half white dial plates, through photoelectric sensor reflected impulse counting is realized flow measurement.
The accuracy of this mode in order to measure avoided because the error that the difference of a pulse produces, thus the time must put very longly, this time that has just caused measuring must lengthen, and causes the low of efficient; Confirm instantaneous delivery fast and accurately for pursuing, then must reduce the test duration, the phenomenon that causes losing pulse has influenced its accuracy, and the fluctuations in discharge of reaction is just very big, unstable, poor accuracy.
Summary of the invention
The utility model purpose is to the defective of prior art a kind of water meter and measuring method thereof of fast, accurately measuring flow to be provided.
The utility model adopts following technical scheme for realizing above-mentioned purpose:
A kind of water meter of quick measurement flow comprises rotatable parts and metering circuit, it is characterized in that: said rotatable parts are provided with permanent magnetic iron; Said tachometer circuit comprises magnetic switch and timing measuring element, and said magnetic switch is positioned on the movement locus of said permanent magnetic iron.
The measuring method of the water meter of the described quick measurement flow of a kind of claim 1 may further comprise the steps:
(1) permanent magnetic iron on the said rotatable parts turns to the magnetic switch position, said magnetic switch adhesive, and the timing measuring element picks up counting;
(2) permanent magnetic iron on the said rotatable parts leaves the magnetic switch position, and said magnetic switch breaks off, and the timing measuring element stops timing;
(3) calculate the rotating speed of rotatable parts pickup time according to the magnetic switch that timing element write down, fix because rotatable parts rotate the water yield of week representative, thereby calculate instantaneous delivery.
The utility model water meter rotatable parts rotate can measure instantaneous delivery once enclosing, and can realize the quick measurement of flow.
Description of drawings
Fig. 1 is the utility model synoptic diagram;
Among the figure, the 1-rotatable parts; The 2-permanent magnetic iron; The 3-magnetic switch; 4-timing measuring element.
Embodiment
The water meter of a kind of quick measurement flow as shown in Figure 1 comprises rotatable parts 1 and metering circuit, and said rotatable parts 1 are provided with permanent magnetic iron 2; Said tachometer circuit comprises magnetic switch 3 and timing measuring element 4, and said magnetic switch 3 is positioned on the movement locus of said permanent magnetic iron 2.
The characteristic of magnetic switch be as magnetic field near the time can adhesive, thereby realize switching function; When rotatable parts when central shaft rotatablely moves, permanent magnetic iron also can move in a circle along concentric, then periodically through magnetic switch, thereby periodically realizes the conducting metering circuit.
This moment, the timing measuring element was measured the time of magnetic switch adhesive, and the permanent magnetic iron rotating speed is also fast when flow rate of water flow is fast, and will lack pickup time; Otherwise pickup time can be longer; Be directly proportional with the rotatable parts rotating speed pickup time.
Because it is (this has the decision of water meter build-in attribute) of fixing that rotatable parts rotate the water yield of week representative, therefore can be through measuring the rotating speed of realizing calculating rotatable parts pickup time of magnetic switch, that is the rotating speed of water meter.Thereby realized moving and to have realized the quick measuring method that tests the speed a week at the water meter rotatable parts.
Claims (1)
1. a water meter of measuring flow fast comprises rotatable parts and metering circuit, and it is characterized in that: said rotatable parts are provided with permanent magnetic iron; Said tachometer circuit comprises magnetic switch and timing measuring element, and said magnetic switch is positioned on the movement locus of said permanent magnetic iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200798287U CN202471146U (en) | 2012-03-06 | 2012-03-06 | Rapid flow-measuring water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200798287U CN202471146U (en) | 2012-03-06 | 2012-03-06 | Rapid flow-measuring water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471146U true CN202471146U (en) | 2012-10-03 |
Family
ID=46919300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200798287U Expired - Lifetime CN202471146U (en) | 2012-03-06 | 2012-03-06 | Rapid flow-measuring water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202471146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589624A (en) * | 2012-03-06 | 2012-07-18 | 无锡水表有限责任公司 | Water meter capable of rapidly measuring flow and measuring method thereof |
-
2012
- 2012-03-06 CN CN2012200798287U patent/CN202471146U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589624A (en) * | 2012-03-06 | 2012-07-18 | 无锡水表有限责任公司 | Water meter capable of rapidly measuring flow and measuring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |