CN205352516U - Electron gas table calibrating installation - Google Patents
Electron gas table calibrating installation Download PDFInfo
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- CN205352516U CN205352516U CN201620144764.2U CN201620144764U CN205352516U CN 205352516 U CN205352516 U CN 205352516U CN 201620144764 U CN201620144764 U CN 201620144764U CN 205352516 U CN205352516 U CN 205352516U
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- gas meter
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- monitor station
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Abstract
The utility model relates to a gas table examination field, in particular to electron gas table calibrating installation. Calibrating installation includes the host computer and detects the platform, it is used for the measurement standard measurementdata with this data transmission to host computer to detect the platform, the host computer is shown and is detected platform lug connection with surveying the electron gas simultaneously, is used for control the examination parameter is set for in beginning and finishing of electron gas table measurement, still be used for acceptance criteria measurementdata and actual measurementdata, and then according to standard measurementdata and actually measure data calculation metering error, it is right that the host computer still is used for according to metering error the discharge coefficient of electron gas table rectifies. The utility model provides a calibrating installation measures the reading in passing through direct read electronics gas table, and the calibrating installation's that avoids having now the artifical problem of participating in measurement data reading of need reduces the artifical examination efficiency that drops into, improves.
Description
Technical field
This utility model relates to detecting gas meter field, particularly to a kind of digital gas meter assay device.
Background technology
Electronic type (mems thermal mass gas meter, flow meter or ultrasonic wave gas meter) gas meter, flow meter belongs to measurement instrument, and according to the pertinent regulations of country, each measurement instrument needs the calibrating of measurement precision before putting on market；In gas meter, flow meter field, national regulation needs gas meter, flow meter is carried out the flow accuracy calibrating of multiple flow point (different flow), only reaches corresponding accuracy class and requires that the gas meter, flow meter of (having 1.5 grades and 1.0 grades at present) just can dispatch from the factory.Owing to calibrating is basic demand to each gas meter, flow meter, and some producers up to a million tables of annual product, therefore, must be fulfilled for can procedure, the requirement such as convenient, fast, accurate and effective for the calibrating scheme of gas meter, flow meter.
Existing monitor station (such as sonic nozzle or bell-jar) is the assay device for mechanical gas table mostly, in view of most mechanical gas table can not automatic reading (gas meter, flow meter shown such as character wheel is accomplished by artificial reading), the corresponding assay device for them can not read the reading of gas meter, flow meter automatically, the automaticity causing these assay devices is not high, verification process needs a large amount of artificial participation, causes calibrating inefficiency.
Utility model content
The purpose of this utility model is in that the reading overcoming existing assay device can not automatically read gas meter, flow meter, it is necessary to a large amount of artificial problems participated in, it is provided that one can be compatible with existing digital gas meter, and can automatically read the detecting device of gas meter, flow meter metering reading.
In order to realize above-mentioned utility model purpose, this utility model provides techniques below scheme:
A kind of digital gas meter assay device, described assay device includes host computer and monitor station；
Described monitor station is for measurement standard continuous data and by these data transmission to host computer；
Described host computer is directly connected to tested digital gas meter and monitor station simultaneously, for controlling beginning and the end of the metering of described digital gas meter, controls the setting of monitor station verification parameters；Described host computer is additionally operable to receive the standard metering data automatic actual metered data reading tested digital gas meter simultaneously of monitor station, and then calculates the error in dipping of described digital gas meter according to described standard metering data and actual metered data；Described host computer is additionally operable to according to error in dipping, the discharge coefficient of described digital gas meter is corrected.
Further, it is connected by RS232 mode between described host computer with tested digital gas meter and monitor station.
Further, described monitor station is sonic nozzle formula or bell-jar.
Further, described digital gas meter be ultrasonic wave gas meter or other can be read by controller, the electronic gauge of metering gas data on flows (or qualitative data, energy datum).
Compared with prior art, the beneficial effects of the utility model: a kind of digital gas meter assay device that this utility model provides, by directly reading the metering reading of digital gas meter in carrying out the process examined and determine, calculate the error in dipping of tested digital gas meter in conjunction with the standard metering data of monitor station after, digital gas meter is proofreaded, thus avoiding assay device in prior art need to manually read, input gas meter, flow meter reading, manually read error information, it is then transferred to the problem that gas meter, flow meter is proofreaded by special host computer, artificial input is greatly decreased, improves the whole efficiency of calibrating.
Accompanying drawing illustrates:
The system block diagram of the digital gas meter assay device that Fig. 1 provides for this utility model.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, this utility model is described in further detail.But this should not being interpreted as, the scope of the above-mentioned theme of this utility model is only limitted to below example, and all technology realized based on this utility model content belong to scope of the present utility model.
Embodiment 1:As it is shown in figure 1, the present embodiment provides a kind of digital gas meter assay device, described assay device includes host computer and monitor station；
Described monitor station is for measurement standard continuous data and by these data transmission to host computer；
Described host computer is directly connected to tested digital gas meter and monitor station simultaneously, for controlling beginning and the end of the metering of described digital gas meter, controls the setting of monitor station verification parameters；Described host computer is additionally operable to receive the standard metering data automatic actual metered data reading tested digital gas meter simultaneously of monitor station, and then calculates the error in dipping of described digital gas meter according to described standard metering data and actual metered data；Described host computer is additionally operable to according to error in dipping, the discharge coefficient of described digital gas meter is corrected.
During practical application, digital gas meter 2 to be detected is placed on monitor station 3, and the breather on itself and monitor station 3 is connected complete；Host computer 1 is carried out parameter setting, generally, parameter setting includes the setting of detection flow point and (namely chooses 3 to 10 flow speed values, gas meter, flow meter measuring accuracy under different in flow rate value is examined and determine, such as low speed, middling speed, at a high speed), measure the setting of total flow (namely for single measurement point, stop when once calibrating measuring to how many liters), to choose 3 flow speed values (i.e. 3 detection flow points), measurement total flow set for 70 liters of citings in the present embodiment；After parameter setting, control monitor station 3 by host computer 1 and digital gas meter 2 starts simultaneously at metering；Measure gas according to the flow velocity chosen by monitor station 3 and digital gas meter 2；Host computer 1 receive simultaneously monitor station 3 standard metering data (it is well known that, monitor station 3 itself can carry out the flow measurement of standard, that is, we it has been generally acknowledged that the flow measurement data of monitor station 3 itself are standard metering data) and the actual metered data of digital gas meter 2；When standard metering data or actual metered data reach the measurement total flow preset, host computer 1 controls monitor station 3 and digital gas meter 2 stops metering and (can only choose a mode, i.e. host computer 1 or the stopping when standard metering data reach to measure total flow, stop when actual metered data reach to measure total flow, but during the mode stopped when adopting standard metering data to reach to measure total flow, it is necessary to host computer 1 is higher to the requirement of real-time of the actual metered digital independent of digital gas meter 2).
In the present embodiment, the interval that host computer 1 can read tested digital gas meter metering reading is set, as, when the mode adopting " stopping metering when standard metering data reach to measure total flow " is examined and determine, can set that host computer 1 respectively reads the metering reading (actual metered data) of primary measured digital gas meter 2 when the calibrating of a certain flow detection point starts and terminates, the metering reading (when tested digital gas meter metering reading when metering starts can take the manner when resetting) only reading primary measured digital gas meter 2 when the calibrating of this flow detection point terminates can also be set；Can also adopt and such as read digital gas meter 2 reading once at interval of 0.1s-10s；In above-mentioned various situations, as standard metering data VMarkWhen reaching 70 liters, metering stops；Then host computer 1 calculates error in dipping the E=((V of digital gas meter 2Mark-VReal)/VMark) * 100%=((70-VReal)/70) * 100%；Subsequently, if the value of error in dipping E is more than predetermined threshold value, then digital gas meter 2 is corrected at the stoichiometric coefficient of this detection flow point (flow speed value) by host computer 1 according to this error in dipping；The mode of correction is by the gas meter, flow meter stoichiometric coefficient K at this detection flow pointFormerIt is corrected to KAdjust, formula is KAdjust=KFormer* (1-E)；Subsequently, again this detection flow point is examined and determine or is entered the verification process of next detection flow point, until all default detection flow points all complete calibrating；
And when adopting the mode of " stopping metering when actual metered data reach to measure total flow ", need to set host computer 1 interval of the metering reading of tested digital gas meter 2 is less, as every 0.1s-1s just reads tested digital gas meter 2 continuous data (i.e. actual metered data) once, when host computer 1 reads actual metered data VRealWhen=70, metering stops, according to formula E=((VMark-VReal)/VMark) * 100%=((VMark-70)/VMark) * 100% technology error in dipping.
Generally, between digital gas meter 2 and host computer 1, and for be connected by RS232 mode between monitor station 3 and host computer.Monitor station 3 can be generally sonic nozzle formula or bell-jar.
Concrete, this device can adopt following flow process to work:
(1) tested digital gas meter 2 is connected with assay device as described in Example 1；Wherein, the controller of described digital gas meter 2 is directly connected with the host computer 1 in described assay device；
(2) by host computer 1, monitor station 3 being carried out verification parameters setting, described verification parameters sets the setting choosing, measuring total flow including detection flow point；Choose a detection flow point and enter step (3),
(3) started the metering of monitor station 3 and digital gas meter 2 by host computer 1 simultaneously；Host computer 1 directly reads the actual metered data of digital gas meter 2；Host computer 1 is gone back self-inspection scaffold tower 3 simultaneously and is received the standard metering data of its measurement；
(4) when actual metered data or standard metering data reach the measurement total flow value preset, stop the metering of monitor station 3 and digital gas meter 2 simultaneously；Host computer 1 calculates the error in dipping of digital gas meter 2 according to the standard metering data received；
(5) if error is more than predetermined threshold value, then, digital gas meter 2 is corrected at the discharge coefficient of this detection flow point by host computer 1 according to error in dipping, enters step (5) after correction；Otherwise, next one detection flow point is selected to return step (2)
(6) the detection flow point as set all is not examined and determine complete, then enter next one detection flow point and return step (2), until all of detection flow point all completes calibrating.
It should be noted that step (3) to step (5) is a complete flow process that a detection flow point is examined and determine in the present embodiment.
In other embodiment, do not enter step (6) but directly return step (3) after the discharge coefficient of current detection flow point is corrected by step (5), again current detection flow point is examined and determine, examine and determine until the actual metered error of this detection flow point reaches just to detect flow point for the next one after within predetermined threshold value, until all of detection flow point is all examined and determine complete.
Claims (4)
1. a digital gas meter assay device, it is characterised in that described assay device includes host computer and monitor station；
Described monitor station is for measurement standard continuous data and by these data transmission to host computer；
Described host computer is directly connected to tested digital gas meter and monitor station simultaneously, for controlling beginning and the end of the metering of described digital gas meter, controls the setting of monitor station verification parameters；Described host computer is additionally operable to receive the standard metering data automatic actual metered data reading tested digital gas meter simultaneously of monitor station, and then calculates the error in dipping of described digital gas meter according to described standard metering data and actual metered data；Described host computer is additionally operable to according to error in dipping, the discharge coefficient of described digital gas meter is corrected.
2. digital gas meter assay device as claimed in claim 1, it is characterised in that be connected by RS232 mode between described host computer with tested digital gas meter and monitor station.
3. digital gas meter assay device as claimed in claim 1, it is characterised in that described monitor station is sonic nozzle formula or bell-jar.
4. digital gas meter assay device as claimed in claim 1, it is characterised in that described digital gas meter is ultrasonic wave gas meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620144764.2U CN205352516U (en) | 2016-02-26 | 2016-02-26 | Electron gas table calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620144764.2U CN205352516U (en) | 2016-02-26 | 2016-02-26 | Electron gas table calibrating installation |
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| Publication Number | Publication Date |
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| CN205352516U true CN205352516U (en) | 2016-06-29 |
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| CN201620144764.2U Active CN205352516U (en) | 2016-02-26 | 2016-02-26 | Electron gas table calibrating installation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509846A (en) * | 2016-02-26 | 2016-04-20 | 成都千嘉科技有限公司 | Electronic gas meter calibration device and method |
| CN111383428A (en) * | 2020-05-29 | 2020-07-07 | 成都千嘉科技有限公司 | Online meter state monitoring and early warning method and system |
| CN113654628A (en) * | 2021-10-21 | 2021-11-16 | 浙江正泰仪器仪表有限责任公司 | Correction method and device for ultrasonic instrument |
-
2016
- 2016-02-26 CN CN201620144764.2U patent/CN205352516U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509846A (en) * | 2016-02-26 | 2016-04-20 | 成都千嘉科技有限公司 | Electronic gas meter calibration device and method |
| CN111383428A (en) * | 2020-05-29 | 2020-07-07 | 成都千嘉科技有限公司 | Online meter state monitoring and early warning method and system |
| CN113654628A (en) * | 2021-10-21 | 2021-11-16 | 浙江正泰仪器仪表有限责任公司 | Correction method and device for ultrasonic instrument |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 536, Section 1, Shuangliu Airport 1 road, Chengdu, Sichuan 610211 Patentee after: Chengdu Qianjia Technology Co.,Ltd. Address before: No. 536, Section 1, Shuangliu Airport 1 road, Chengdu, Sichuan 610211 Patentee before: Chengdu Qianjia Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |