CN201170745Y - Apparatus for calibrating water meter - Google Patents
Apparatus for calibrating water meter Download PDFInfo
- Publication number
- CN201170745Y CN201170745Y CNU2008201078588U CN200820107858U CN201170745Y CN 201170745 Y CN201170745 Y CN 201170745Y CN U2008201078588 U CNU2008201078588 U CN U2008201078588U CN 200820107858 U CN200820107858 U CN 200820107858U CN 201170745 Y CN201170745 Y CN 201170745Y
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- valve
- water meter
- calibration device
- water
- meter calibration
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Abstract
The utility model relates to a water meter calibration device which comprises a water pump, a pressure stabilizing vessel, a flow regulating valve, an output of the water meter calibration device, a reverser and a work measuring instrument which are connected successively through a pipeline. The water meter calibration device is characterized in that a valve is arranged between the flow regulating valve and the outlet of the water meter calibration device. The valve can be a valve which can be opened and closed rapidly, can be a pneumatic butterfly valve or a manual butterfly valve and other rapid valves. The calibration device which can calibrate both the traditional single counter water meter and a compound water meter with two counters is provided. With low cost, the water meter calibration device is applied to the improvement of the old water meter calibration device.
Description
Technical field
The utility model relates to a kind of water meter calibration device, is mainly used in the measurement verification of compound water metre, belongs to the metering and calibrating device of water meter in the water pipeline of industrial and mining enterprises or civilian waterworks.
Technical background
At present, in the measurement verification field of water meter, greater than the water meter calibration device of DN100mm bore commutator is housed mostly for calibrating, purpose be under the swiftly flowing situation of current, switch current by starting commutator, selected suitable work measuring instrument carries out measurement verification with the water meter to different size.Said apparatus is suitable for for traditional single counter water meter, but just has inconvenience for the nearly 2 years new compound water metres that come out.
Compound water metre is to be combined by small one and large one two water meters, is commonly called as mother and sons' water meter, and he has two counters, and mainly the metering of suitable large diameter pipeline needs.Its principle of work is: compound water metre is controlled the water metering of two water meters of size by being installed in opening and closing of a cross-over valve in the large-diameter water meter, cross-over valve is opened large-diameter water meter when water consumption is big, simultaneously the aquifer yield of small diameter watermeter is turned down, large-diameter water meter begins normally to measure the water yield; Small diameter watermeter is opened than a hour cross-over valve when water consumption, closed the water delivering orifice of large-diameter water meter simultaneously, small diameter watermeter begins to measure the water yield.So, calibrating for this compound water metre must be that two water meters of size are examined and determine the water meter error that could examine and determine out integral body together, the testing person of this moment needs to use simultaneously the specified numerical value of pointer that a pair of eyes are observed all the time and two water meter counter high speeds of interpretation are rotated in certain distance, the calibrating of so finishing for compound water metre, tend to increase very big personal error, so that make such verification result very insincere.So the calibration method of this routine and calibrating installation no longer are suitable for the measurement verification of compound water metre.
The utility model content
The purpose of this utility model overcomes the deficiencies in the prior art, and a kind of calibrating installation that not only can examine and determine traditional single counter water meter but also can examine and determine the compound water metre with two counters is provided.
The utility model adopts following technical scheme, it is a kind of water meter calibration device, by water pump, pressurizing vessel, master control valve, preceding straight length, be connected in sequence by pipeline by water gauge, back straight length, binding clasp, instantaneous delivery indicating instrument, flow control valve, the outlet of water meter calibration device, commutator and work measuring instrument, the pipeline filling valve is connected between pressurizing vessel and the preceding straight length, it is characterized in that being provided with valve between the outlet of flow control valve and water meter calibration device.
Above-mentioned valve adopts quick open and close valve, can be fast pneumatic butterfly valve or Hand-operated butterfly valve, also can be fast pneumatic ball valve or manual ball valve; And valve is provided with remote automatic control device.
Principle of work of the present utility model is achieved in that by design water meter calibration device of the present utility model, on the basis of existing technology, between flow control valve and the outlet of water meter calibration device, be provided with valve, make mobile water static following under the situation that does not influence the calibrating effect.
In order to reach the purpose that allows current stop to flow, can realize by a certain valve of closing in the existing calibrating installation, and have only master control valve 5 and 11 two closable valves of flow control valve in this device at present.Master control valve 5 is rapidly opened and closed valves, as long as master control valve 5 cuts out, the ducted pressure of whole test is zero, but the movement material of water meter generally all is engineering plastics, anti-impact force has certain limit, the flow velocity of water can reach more than the 2.2m/s when the nominal flow rate of calibrating water meter, if open fast suddenly and will be produced water bell phenomenon by water gauge front master control valve 5, the impulsive force utmost point of water hammer can cause the damage of water meter movement, is infeasible so adopt master control valve 5 control verification compound water metres.Another valve is a flow control valve 11, it is a valve at a slow speed, its effect is the fine setting of carrying out the water yield, because the volume of the reading of work measuring instrument necking down part is limited, when discharge can not be grasped the water yield that enters work measuring instrument with valve closing flow at a slow speed during in flow at high speed, can make verification result very inaccurate, also be infeasible so adopt flow control valve 11 control verification compound water metres.Only above water meter calibration device outlet 12 and between the flow control valve 11, a rapidly opened and closed valve 16 is installed in addition just can be reached and allow the purpose of mobile water under static under the situation that does not influence the calibrating effect.
The advantage and the function of technical solutions of the utility model are: water can directly enter work measuring instrument once coming out from valve 16, can not produce infringement to any parts in the device; The outstanding feature of immediate action valve 16 is soon, is installed in by the rear of water gauge 8, and its open and close can not produce water hammer to water meter, can not cause any damage to water meter; Can reach the purpose of rapidly opened and closed valve by remote automatic control device, when not carrying out the compound water metre calibrating, valve 16 can be opened, be used for examining and determine common water meter.
Description of drawings
Fig. 1: the structural representation of prior art water meter calibration device;
Fig. 2: the structural representation of the utility model water meter calibration device;
In the accompanying drawing, pond 1, water pump 2, pressurizing vessel 3, pipeline filling valve 4, master control valve 5, preceding straight length 6, back straight length 7, by water gauge 8, binding clasp 9, instantaneous delivery indicating instrument 10, flow control valve 11, water meter calibration device outlet 12, commutator 13, work measuring instrument I 14, work measuring instrument II 15, valve 16.
Embodiment
Below in conjunction with drawings and Examples structure of the present utility model is further specified, by connection shown in Figure 2 water meter calibration device of the present utility model, by water pump 2, pressurizing vessel 3, master control valve 5, preceding straight length 6, by water gauge 8, back straight length 7, binding clasp 9, instantaneous delivery indicating instrument 10, flow control valve 11, water meter calibration device outlet 12, commutator 13 and work measuring instrument 14 are connected in sequence by pipeline, pipeline filling valve 4 is connected between pressurizing vessel 3 and the preceding straight length 6, between flow control valve 11 and water meter calibration device outlet 12, valve 16 is set, makes mobile water static following under the situation that does not influence the calibrating effect.
The utility model selects for use conventional parts to be formed by connecting, and valve 16 adopts commercially available fast pneumatic control butterfly valve, also can adopt quick manual control butterfly valve or adopt the immediate action valve of other type.
The utility model makes things convenient for the testing person to examine and determine compound water metre exactly, also can be applicable in the various discharge calibrating installations, to be applicable to the fast opening and closing process of the test of various discharges, has easy to operate, calibrating and test figure advantage accurately, suitable transformation to old water meter calibration device.
The equivalence of doing according to basic design of the present utility model changes, and when the function that it produced does not exceed spiritual that the utility model contains yet, all should look and do within the protection spirit and scope of the present utility model.
Claims (5)
1. a water meter calibration device is by water pump (2), pressurizing vessel (3), master control valve (5), preceding straight length (6), be connected in sequence by pipeline by water gauge (8), back straight length (7), binding clasp (9), instantaneous delivery indicating instrument (10), flow control valve (11), water meter calibration device outlet (12), commutator (13) and work measuring instrument (14), pipeline filling valve (4) is connected between pressurizing vessel (3) and the preceding straight length (6), it is characterized in that being provided with valve (16) between flow control valve (11) and the water meter calibration device outlet (12).
2. water meter calibration device according to claim 1 is characterized in that, described valve (16) is quick open and close valve.
3. water meter calibration device according to claim 1 and 2 is characterized in that, described valve (16) is fast pneumatic butterfly valve or Hand-operated butterfly valve.
4. water meter calibration device according to claim 1 and 2 is characterized in that, described valve (16) is fast pneumatic ball valve or manual ball valve.
5. water meter calibration device according to claim 1 and 2 is characterized in that, described valve (16) is provided with remote automatic control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201078588U CN201170745Y (en) | 2008-03-24 | 2008-03-24 | Apparatus for calibrating water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201078588U CN201170745Y (en) | 2008-03-24 | 2008-03-24 | Apparatus for calibrating water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170745Y true CN201170745Y (en) | 2008-12-24 |
Family
ID=40209798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201078588U Expired - Lifetime CN201170745Y (en) | 2008-03-24 | 2008-03-24 | Apparatus for calibrating water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170745Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589658A (en) * | 2012-02-29 | 2012-07-18 | 宁波明泰流量设备有限公司 | Starting-stopping heavy-caliber water flow calibrating device and starting-stopping heavy-caliber water flow calibrating method |
| CN102798444A (en) * | 2012-08-09 | 2012-11-28 | 丹东意邦计量仪器仪表有限公司 | High-pressure water injection meter detecting device |
| CN102798443A (en) * | 2012-08-09 | 2012-11-28 | 丹东意邦计量仪器仪表有限公司 | Small-bore high-pressure water injection meter detecting device for oil recovery and gas recovery in oil field |
-
2008
- 2008-03-24 CN CNU2008201078588U patent/CN201170745Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589658A (en) * | 2012-02-29 | 2012-07-18 | 宁波明泰流量设备有限公司 | Starting-stopping heavy-caliber water flow calibrating device and starting-stopping heavy-caliber water flow calibrating method |
| CN102589658B (en) * | 2012-02-29 | 2014-06-25 | 宁波明泰流量设备有限公司 | Starting-stopping heavy-caliber water flow calibrating device and starting-stopping heavy-caliber water flow calibrating method |
| CN102798444A (en) * | 2012-08-09 | 2012-11-28 | 丹东意邦计量仪器仪表有限公司 | High-pressure water injection meter detecting device |
| CN102798443A (en) * | 2012-08-09 | 2012-11-28 | 丹东意邦计量仪器仪表有限公司 | Small-bore high-pressure water injection meter detecting device for oil recovery and gas recovery in oil field |
| CN102798443B (en) * | 2012-08-09 | 2015-02-18 | 丹东意邦计量仪器仪表有限公司 | Small-bore high-pressure water injection meter detecting device for oil recovery and gas recovery in oil field |
| CN102798444B (en) * | 2012-08-09 | 2015-02-18 | 丹东意邦计量仪器仪表有限公司 | High-pressure water injection meter detecting device |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081224 |