CN202614336U - Large-caliber fast calibrating device with multi-meters in serial connection - Google Patents
Large-caliber fast calibrating device with multi-meters in serial connection Download PDFInfo
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- CN202614336U CN202614336U CN 201220070937 CN201220070937U CN202614336U CN 202614336 U CN202614336 U CN 202614336U CN 201220070937 CN201220070937 CN 201220070937 CN 201220070937 U CN201220070937 U CN 201220070937U CN 202614336 U CN202614336 U CN 202614336U
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- meters
- pipeline
- calibrating device
- serial connection
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Abstract
The utility model discloses a large-caliber fast calibrating device with multi-meters in serial connection. The large-caliber fast calibrating device comprises a pipeline which is provided with an electromagnetic flow meter. At least two calibrated meters are arranged on the pipeline. The large-caliber fast calibrating device with the multi-meters in the serial connection further comprises a remote control unit and a control unit. The control unit is used for receiving signals from the remote control unit. The large-caliber fast calibrating device with the multi-meters in the serial connection can simultaneously calibrate multiple calibrated meters, and therefore calibration efficiency is greatly improved.
Description
Technical field
The utility model relates to a kind of heavy caliber multilist quick calibrating installation of connecting.
Background technology
Heavy caliber (more than the DN80) water flow standard apparatus has weight method, volumetric method, method of standard table etc.; In the start and stop of metering process, generally all adopt reversing mode; Photoelectric control with commutator is synchronous, on the device of method of standard table, adopts the simulation commutation signal to realize synchronously.
Bigbore flow apparatus seldom adopts the start and stop method; Because we know in smooth pipeline, open at short notice or valve-off, because the inertia of water; The flow velocity of liquid is from the zero instantaneous rated flow that accelerates in the seized table pipeline; Perhaps be kept to zero from the rated flow short time, can produce tangible water hammer effect, have great destructiveness; If valve opening or the time of closing are slow excessively, the fluctuations in discharge amount when being opened to of valve finished is big, and vice versa, and in a verification process, the flow of variation accounting in the whole calibrating time is excessive so, will influence the accuracy of examining and determine data again.
In the application of large-diameter water meter calibrating, regular meeting runs into no electronic signal output, can't adopt the seized table of shooting or photoelectricity acquired signal again; Can't adopt electric signal synchronous like this, for the seized table of separate unit, we can use the motion of the minimum pointer of manual observation; Begin or stop calibrating at pointer at certain Instantaneous Control commutator (or switching-over virtual signal) on a bit; The indicating value of the seized table of artificial input compares with the standard value of gathering, and can draw verification result.
In order to improve calibrating efficient, many seized tables series connection of frequent in actual use employing, obviously manual work can't be accomplished instantaneous synchronous to multilist.
Summary of the invention
The utility model is to deficiency of the prior art, and a kind of heavy caliber multilist quick calibrating installation of connecting is provided, and uses this device can a plurality of seized tables of quick and convenient detection.
In order to solve the problems of the technologies described above, the utility model is able to solve through following technical proposals: the heavy caliber multilist quick calibrating installation of connecting comprises a pipeline; Said pipeline is provided with electromagnetic flowmeter, and two seized tables are installed on the said pipeline at least, also comprises telepilot; Control module, said control module is used to accept remote controller signal, during detection; May further comprise the steps: 1) the normal water flowing of pipeline is adjusted to when examining flow first seized table of manual observation; In the moment of the arbitrary scale of minimum pointer process, press RPB, the record start reading; 2) control system writes down the standard scale pile-up pulse number of this time automatically; 3) observe second seized table, be repeated to the seized table of last piece; 4) observe first seized table then, when minimum pointer passes through the said scale that RPB is pressed in the said step 1, press RPB once more, the end of record (EOR) reading is repeated to the seized end of list (EOL) of last piece; 5) the rising to the reading input control system of each table, automatic basis of calculation value of system and error finish a verification process.
In the technique scheme, the exportable full scale frequency signal that reaches 10kHz of said electromagnetic flowmeter.
Beneficial effect: the utility model compared with prior art has following beneficial effect: the utility model can be examined and determine many seized tables simultaneously, thereby improves calibrating efficient greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail: referring to Fig. 1, the heavy caliber multilist quick calibrating installation of connecting comprises a pipeline 1, and said pipeline 1 is provided with electromagnetic flowmeter 3.The said electromagnetic flowmeter 3 exportable full scale frequency signals that reach 10kHz.Pressing the range ratio of 1:10 considers; In minimum flow, also can export the frequency signal of 1000Hz; The error of frequency signal in calibration interval maximum 2 is calculated by minimum calibrating time 60s, and the amount of influence of 2 pulses is: 2/60000*100%=0.003% can ignore.
Four seized tables 9 are installed on the said pipeline 1.Certainly, can adjust the number of said seized table 9 at any time according to the detection needs.
Also comprise telepilot 7, control module 5, said control module 5 is used to accept telepilot 7 signals; During detection, may further comprise the steps: 1) pipeline 1 normal water flowing is adjusted to when examining flow; First seized table 9 of manual observation; In the moment of the arbitrary scale of minimum pointer process, press RPB, the record start reading; 2) control system writes down the standard scale pile-up pulse number of this time automatically; 3) observe second seized table 9, be repeated to the seized table 9 of last piece; 4) observe first seized table 9 then, when minimum pointer passes through the said scale that RPB is pressed in the said step 1, press RPB once more, the end of record (EOR) reading is repeated to the seized table 9 of last piece and finishes; 5) the rising to the reading input control system of each table, automatic basis of calculation value of system and error finish a verification process.
A DN200 water meter of producing by certain water meter company limited is an example, this water meter Q3=400m
3/ h, R=200, its Q1=2m
3/ h, the every circle of minimum pointer 100L, water consumption 1000L; The separate unit water meter needs 30 minutes at least in this some calibrating so, adopts four table series connection, and operation room is at a distance from by beginning with stop respectively to change two minutes between two tables; Adopt the 42 minutes calibrating supply and demand time of a flow point of four seized tables 9 of new method like this, then need 120 minutes, examine and determine three flow points so and can save more time according to separate unit; If the above series connection of four tables then can improve calibrating efficient greatly.
Claims (2)
1. the heavy caliber multilist quick calibrating installation of connecting; It is characterized in that, comprise a pipeline, said pipeline (1) is provided with electromagnetic flowmeter (3); Two seized tables (9) are installed on the said pipeline (1) at least; Also comprise telepilot (7), control module (5), said control module (5) are used to accept telepilot (7) signal.
2. the heavy caliber multilist as claimed in claim 1 quick calibrating installation of connecting is characterized in that the exportable full scale frequency signal that reaches 10kHz of said electromagnetic flowmeter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220070937 CN202614336U (en) | 2012-02-29 | 2012-02-29 | Large-caliber fast calibrating device with multi-meters in serial connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220070937 CN202614336U (en) | 2012-02-29 | 2012-02-29 | Large-caliber fast calibrating device with multi-meters in serial connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614336U true CN202614336U (en) | 2012-12-19 |
Family
ID=47348025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220070937 Expired - Fee Related CN202614336U (en) | 2012-02-29 | 2012-02-29 | Large-caliber fast calibrating device with multi-meters in serial connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202614336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674194A (en) * | 2013-12-31 | 2014-03-26 | 重庆川仪自动化股份有限公司 | Verification system and verification method of electromagnetic flowmeter |
-
2012
- 2012-02-29 CN CN 201220070937 patent/CN202614336U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674194A (en) * | 2013-12-31 | 2014-03-26 | 重庆川仪自动化股份有限公司 | Verification system and verification method of electromagnetic flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20180229 |