CN208736530U - A kind of water meter calibration - Google Patents

A kind of water meter calibration Download PDF

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Publication number
CN208736530U
CN208736530U CN201820941297.5U CN201820941297U CN208736530U CN 208736530 U CN208736530 U CN 208736530U CN 201820941297 U CN201820941297 U CN 201820941297U CN 208736530 U CN208736530 U CN 208736530U
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China
Prior art keywords
flow
pipeline
initial adjustment
pipelines
adjustment
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Active
Application number
CN201820941297.5U
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Chinese (zh)
Inventor
王化青
吴洪涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Sanyu Intelligent Equipment Co., Ltd.
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Jinan Three Space Instrumentation Co Ltd
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Priority to CN201820941297.5U priority Critical patent/CN208736530U/en
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Abstract

The utility model relates to originally drainage facility fields, particularly disclose a kind of water meter calibration.It includes PLC control system, vacuum tank, meter-clamping apparatus and flow adjustment pipe, flow adjustment pipe includes three pipelines, every pipeline installs fast joint of waterpipe, abacus in fast joint of waterpipe, there is metering orifice on orifice plate, three flow bore dias are different, are equipped with pneumatic operated valve on three pipelines, flow initial adjustment pipeline is connected between vacuum tank and meter-clamping apparatus, flow initial adjustment pipeline is made of the different initial adjustment pipeline of three internal diameters in parallel.The utility model is when carrying out flow conversion, flow initial adjustment pipeline is first passed through to reduce flow, carry out initial adjustment, the flow for flowing through flow adjustment pipe in this way can be closer to the measurement flow needed, pervious situation fluctuated would not occur when adjusting the measurement flow of needs again, the measurement flow for being easy for being adjusted to need improves the accuracy of calibrating to calculate accurately data.

Description

A kind of water meter calibration
Technical field
The utility model relates to originally drainage facility field, in particular to a kind of water meter calibration.
Background technique
The accuracy for needing to measure before water meter factory is examined and determine, and water meter calibration is not only convenient for administrative department of measurement pair Manufacture, repair measurement instrument quality exercise supervision inspection, guarantee factory water meter accuracy, safeguard user personal benefit Benefit can also comply with the strong table tool of utility network, intelligentized development trend offer flexibility height, extended capability effectively Meet the management requirement of Running-water Company and industry, but current water meter calibration is in the prevalence of shadow influenced by ambient temperature The problem of big, structure is complicated, poor accuracy is rung, be also improved space.For this purpose, applicant invented a kind of water in 2016 Table calibrating installation has substantially solved the above problem, but in the system, due to each application No. is 2016205037079 Checklist will carry out differing larger between the different flow of monitoring of different flow three times, therefore in conversion, such as every from 4 sides Hour is transferred to 0.03 side per hour, it may appear that instability of flow, it is difficult to which the case where adjusting influences verification result.
Summary of the invention
Stable water meter calibration system is converted in order to make up for the defects of the prior art, the utility model provides a kind of flow System.
The utility model is achieved by the following technical solution:
A kind of water meter calibration, including PLC control system, vacuum tank, meter-clamping apparatus and flow adjustment pipe, flow are adjusted Pipeline includes three pipelines, characterized in that every pipeline is designed with fast joint of waterpipe, sets in the fast joint of waterpipe Abacus, the orifice plate are provided with metering orifice, and the diameter of three metering orifices is different, pneumatic operated valve is equipped on three pipelines, steady It presses and connects flow initial adjustment pipeline between tank and meter-clamping apparatus, the flow initial adjustment pipeline is made of three initial adjustment pipelines in parallel, and three The internal diameter of initial adjustment pipeline and the diameter of metering orifice correspond, and are equipped with flowmeter on each initial adjustment pipeline and initial adjustment is pneumatic Valve.
The diameter of three metering orifices and three kinds of different inner diameters of three initial adjustment pipelines are respectively DN25, DN10 and DN2.5.
The beneficial effects of the utility model are:
The utility model first passes through flow initial adjustment pipeline and reduces flow when carrying out flow conversion, carries out initial adjustment, in this way The flow for flowing through flow adjustment pipe can be closer to the measurement flow needed, then definitely define flow by flow control, at this moment It is not in pervious situation fluctuated, it is easy to which the measurement flow just needed accurately counts to calculate According to improving the accuracy of verification result.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings:
Fig. 1 is the schematic view of the front view of the utility model;
Fig. 2 is the overlooking structure diagram of flow adjustment pipe;
Fig. 3 is the overlooking structure diagram of flow initial adjustment pipeline;
Fig. 4 is the schematic cross-sectional view of the connection structure of fast joint of waterpipe.
In figure, 1 water tank, 2 water pumps, 3 vacuum tanks, 4 meter-clamping apparatus, 5 detection platforms, 6 flow adjustment pipes, 61 orifice plates, 62 gas Dynamic valve, 63 pipelines, 64 metering orifices, 65 fast joint of waterpipe, 66 washers, 7 commutators, 8 weighing containers, 9 flow initial adjustment pipelines, 91 Flowmeter, 92 initial adjustment pipelines, 93 initial adjustment pneumatic operated valves.
Specific embodiment
Attached drawing is specific embodiment of the utility model.As shown in Figures 1 to 4, this kind of water meter calibration, including PLC Control system and water tank 1, water pump 2, vacuum tank 3, meter-clamping apparatus 4, detection platform 5, flow adjustment pipe 6, commutator 7, weighing are held Device 8, flow adjustment pipe 6 include three pipelines 63, and each pipeline 63 all consists of two parts, and pass through one between this two parts A fast joint of waterpipe 65 connects, and an orifice plate 61 is placed in the washer 66 of 65 one end of fast joint of waterpipe, is provided on orifice plate 61 The diameter of one metering orifice 64, the metering orifice 64 on three pipelines 63 is respectively DN25, DN10 and DN2.5, each pipeline 63 On a pneumatic operated valve 62 is all installed, between vacuum tank 3 and meter-clamping apparatus 4 connect a flow initial adjustment pipeline 9, flow initial adjustment pipeline 9 are made of three initial adjustment pipelines 92 in parallel, the specification of three initial adjustment pipelines 92 also be respectively DN25, DN10 and DN2.5, it is each Flowmeter 91 and initial adjustment pneumatic operated valve 93 are equipped on initial adjustment pipeline 92.DN25, DN10 and DN2.5 indicate their internal diameter or straight Diameter is respectively 25,10,2.5 millimeters.Of course for sealing, upper gasket 66 can also be all installed in the two sides of orifice plate 61.
After checklist connects, first by flow adjustment pipe 6 and flow initial adjustment pipeline 9 two pipelines 63 and two initial adjustments Pipeline 92 is closed, and internal diameter and the identical pipeline 63 of diameter and initial adjustment pipeline 92 are retained, after the flow value measurement of this specification, It simultaneously closes off again, then opens the pipeline 63 and initial adjustment pipeline 92 of another same size, then detected.
In addition to the technical characteristic described in the specification, remaining technical characteristic is technology known to those skilled in the art.

Claims (2)

1. a kind of water meter calibration, including PLC control system, vacuum tank (3), meter-clamping apparatus (4) and flow adjustment pipe (6), Flow adjustment pipe (6) includes three pipelines (63), characterized in that every pipeline (63) is designed with fast joint of waterpipe (65), orifice plate (61) are equipped in the fast joint of waterpipe (65), the orifice plate (61) is provided with metering orifice (64), three metering orifices (64) diameter is different, is equipped with pneumatic operated valve (62) on three pipelines (63), connects between vacuum tank (3) and meter-clamping apparatus (4) Flow initial adjustment pipeline (9) is connect, the flow initial adjustment pipeline (9) is made of three initial adjustment pipelines (92) in parallel, three initial adjustment pipes The internal diameter on road (92) and the diameter of metering orifice (64) correspond, be equipped on each initial adjustment pipeline (92) flowmeter (91) and Initial adjustment pneumatic operated valve (93).
2. water meter calibration according to claim 1, characterized in that the diameter of three metering orifices (64) and three initial adjustments Three kinds of different inner diameters of pipeline (92) are respectively DN25, DN10 and DN2.5.
CN201820941297.5U 2018-06-19 2018-06-19 A kind of water meter calibration Active CN208736530U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820941297.5U CN208736530U (en) 2018-06-19 2018-06-19 A kind of water meter calibration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820941297.5U CN208736530U (en) 2018-06-19 2018-06-19 A kind of water meter calibration

Publications (1)

Publication Number Publication Date
CN208736530U true CN208736530U (en) 2019-04-12

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CN201820941297.5U Active CN208736530U (en) 2018-06-19 2018-06-19 A kind of water meter calibration

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CN (1) CN208736530U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111015120A (en) * 2019-12-26 2020-04-17 安为机电设备制造(上海)有限公司 Production method of differential pressure type flowmeter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111015120A (en) * 2019-12-26 2020-04-17 安为机电设备制造(上海)有限公司 Production method of differential pressure type flowmeter

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Address after: 264100 Renren Street 359, Dayao Street, Mouping District, Yantai City, Shandong Province

Patentee after: Shandong Sanyu Intelligent Equipment Co., Ltd.

Address before: Room 322, Public Building No. 1, Dianliuxincun District 3, Lixia District, Jinan City, Shandong Province, 250000

Patentee before: Jinan three space instrumentation company limited