CN108072414A - A kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter - Google Patents
A kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter Download PDFInfo
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- CN108072414A CN108072414A CN201810014992.1A CN201810014992A CN108072414A CN 108072414 A CN108072414 A CN 108072414A CN 201810014992 A CN201810014992 A CN 201810014992A CN 108072414 A CN108072414 A CN 108072414A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/02—Compensating or correcting for variations in pressure, density or temperature
- G01F15/04—Compensating or correcting for variations in pressure, density or temperature of gases to be measured
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention provides a kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter, is related to valuation and adjusts technical field.Counter register stores temperature and the umber of pulse table of comparisons, is segmented in units of 10 DEG C, and the corresponding umber of pulse of every section of two ends temperature value is threshold impulse number；The acquisition pulse number of temperature sensor passback obtains calculating temperature score value compared with the threshold impulse number of each calculating section, and calculating temperature score value, temperature value corresponding with small thresholding umber of pulse is added to obtain temperature value again；By the way that compared with mark condition temperature, pressure and combustion gas volume, the combustion gas obtained under operating mode uses volume.The technical issues of present invention solves gas meter, flow meter in the prior art and is located at the use of temperature and pressure varying environment, and meter gaseous volume is not accurate enough.The present invention has the beneficial effect that：Operating mode gas consumption is calculated into bid condition gas consumption by the relation of temperature and pressure, more accurately reflection really uses the volume of combustion gas, mitigates the loss that gas company sells gas.
Description
Technical field
The present invention relates to valuation to adjust technical field, is compensated more particularly, to the temperature and pressure of the electronic measurement of gas meter, flow meter
Computational methods.
Background technology
China has a vast territory, and for latitude across greatly, the temperature, pressure gap between different regions are big.The combustion gas of phase homogenous quantities,
Temperature, pressure are different, and volume is also different.Gas metering is caused to have larger difference.General gas table is that volumetric flow measures, gas
Body volume is substantially unrelated with temperature, pressure change.In this way, the combustion gas volume being metered into is not actual combustion gas under nonstandard condition
Use volume, it is also not high for the metering precision under different temperatures.Chinese patent application publication No. CN106225862A, Shen
Please date of publication on December 14th, 2016, the application for a patent for invention of entitled " the simple and direct compensation method of gas flow " discloses one kind
The computational methods of gas warm-pressing compensation.Its method：Design conditions parameter and actual condition parameter based on gasmetry instrument, profit
With variable backoff coefficient formulas, variable backoff coefficient is determined, in variable backoff coefficient formulas, variable backoff coefficient is
The function of design conditions parameter and actual condition parameter；Design conditions flow value and the variable benefit based on gasmetry instrument
It repays coefficient and compensates calculating, obtain actual condition flow value.This method metering or comparatively laborious, inapplicable combustion gas meter
Amount.
The content of the invention
It is located at the use of temperature and pressure varying environment to solve gas meter, flow meter in the prior art, meter gaseous volume is not accurate enough
The technical issues of true, the present invention provide a kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter, it is ensured that gas metering is accurate
Really.
The technical scheme is that：A kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter, it includes：Combustion gas
The controller of table, the counter register being connected with controller, temperature sensor and pressure sensor, counter register store with
Temperature range in units of 10 DEG C, is divided into several calculating sections, often by the temperature and the umber of pulse table of comparisons that temperature sensor is adapted
It is threshold impulse number to calculate the corresponding umber of pulse of section two ends temperature value；The acquisition pulse number that controller returns temperature sensor
Compared with the threshold impulse number of each calculating section, determine which, which falls into, calculates section, obtains calculating temperature score value, calculates temperature score value again
Temperature value corresponding with the small thresholding umber of pulse of the calculating section is added to obtain the calculating temperature value of temperature sensor measurement；This is calculated
The weighted average of temperature value and last computation temperature value is the effective temperature value of this temperature acquisition；According to gas equation,
By compared with mark condition temperature, pressure and combustion gas volume, obtaining the effective temperature value and pressure sensor of temperature sensor measurement
Combustion gas under the pressure value of passback uses volume.It is compensated by temperature and pressure, accurately reflects the true volume for using combustion gas, subtract
Sell the loss of gas in light gas company.
Preferably, during the effective temperature value of temperature acquisition calculates, in the effective temperature value calculating of temperature acquisition, this temperature
The flexible strategy of the calculating temperature value of degree acquisition are 70%, and the flexible strategy that last time temperature acquisition calculates temperature value are 30%；Reduce cas fortuit
The influence of lower abnormal temperature.
Preferably, in this temperature acquisition of temperature sensor, acquisition pulse number not in temperature and the umber of pulse table of comparisons,
Then temperature sensor needs resurvey；Ensure that the temperature value collected is true.
Preferably, the temperature value that this temperature acquisition is calculated is differed with the effective temperature value of last temperature acquisition
During more than or equal to 20 DEG C, then temperature acquisition three times is carried out, if the temperature value being calculated twice three times in temperature acquisition is still big
In equal to 20 DEG C, then the temperature value this being calculated twice is averaged, the effective temperature value as this temperature acquisition；It reduces
The influence of external interference ensures that the temperature value collected is correct.
Preferably, temperature sensor beams back acquisition pulse number, this acquisition pulse number and last time are gathered arteries and veins by controller
It is more identical to rush number, starts counting up storage, takes the umber of pulse of acquisition pulse number consecutive identical three times, is this temperature sensor
Acquisition pulse number；In the case that in acquisition, umber of pulse is constant three times, it is judged to having got all umber of pulses, sampling is accurate
Really.
Compared with prior art, the beneficial effects of the invention are as follows：The judgement of multi collect temperature reduces the temperature because accidental
Spend the abnormal influence for causing current temperature data exception of sensor.Using temperature value weighting algorithm, reduce different under cas fortuit
The influence of normal temperature.Operating mode gas consumption is calculated into bid condition gas consumption by the relation of temperature and pressure, more accurately reflection is true
The real volume for using combustion gas mitigates the loss that gas company sells gas.
Specific embodiment
Below by embodiment, the technical solutions of the present invention will be further described.
Embodiment 1：
A kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter, it includes：The controller of gas meter, flow meter is connected with controller
Counter register, temperature sensor and pressure sensor.Counter register stores the temperature being adapted with temperature sensor
With the umber of pulse table of comparisons.The present embodiment temperature sensor temperature and the umber of pulse table of comparisons are temperature：It is -40 DEG C to 150 DEG C, corresponding
Umber of pulse is 181 to 3220.In units of 10 DEG C, temperature range is divided into 19 calculating sections.Often calculate section two ends temperature
It is worth corresponding umber of pulse for threshold impulse number.The collecting temperature time arrives, controller control temperature sensor start temperature acquisition.Control
Counter register storage data are read in device timing processed.Temperature sensor is powered after 50 milliseconds, then is controlled with one millisecond of cycle
Device reads counter register data, judges that this temperature sensor beams back acquisition pulse number and whether last time is identical：Difference, then again
One millisecond of delay carries out reading with judging；It is identical, storage is started counting up, takes the pulse of acquisition pulse number consecutive identical three times
Number is the acquisition pulse number of this temperature sensor.Maximum 120 milliseconds of the duration of acquisition every time.If temperature sensor
In this temperature acquisition, acquisition pulse number is not in temperature and the umber of pulse table of comparisons, then temperature sensor needs resurvey.Such as
Fruit not in temperature and the umber of pulse table of comparisons, then judges temperature in rear continuous temperature sensor temperature acquisition umber of pulse three times
Sensor fault or exception.The acquisition pulse number that controller returns temperature sensor and the threshold impulse number ratio of each calculating section
Compared with which determines to fall into and calculates section.It will be greater than the small thresholding umber of pulse of the calculating section and less than the acquisition pulse of big thresholding umber of pulse
Number, is linearly calculated with the temperature of the calculating section and corresponding umber of pulse, obtains calculating temperature score value.Calculate temperature score value again
Temperature value corresponding with the small thresholding umber of pulse of the calculating section is added to obtain the calculating temperature value of temperature sensor measurement.Such as：
In certain temperature acquisition, the umber of pulse that controller obtains sampling pulse is 1200.Which first determine whether that umber of pulse 1200 falls to count at
It calculates in section.Temperature sensor temperature and the umber of pulse table of comparisons are inquired about, 20 DEG C of corresponding threshold impulse numbers are corresponding for 1125,30 DEG C
Threshold impulse number is 1284.So, umber of pulse is 1200 corresponding temperature ranges just at 20 ~ 30 DEG C.In 20 ~ 30 DEG C of models of the table of comparisons
In enclosing：The corresponding umber of pulse of difference of 10 DEG C of temperature is 159（1284-1125=159）.Among these, temperature is done with umber of pulse
Linear calculating processing：One pulse corresponds to about 0.06289 DEG C（10/159≈0.06289）.The umber of pulse of present sample pulse is
1200, it is 1125 to subtract 20 DEG C of corresponding threshold impulse numbers, obtains umber of pulse 75.75 umber of pulses and a pulse corresponding temperature
0.06289 is multiplied, and obtains temperature score value 4.717.The sum of temperature value 20 corresponding with small thresholding umber of pulse of temperature score value 4.717,
For 24.717 DEG C of the calculating temperature value of temperature sensor measurement.When the calculating temperature value and upper one that this temperature acquisition is calculated
, it is necessary to carry out temperature acquisition three times again when the calculating temperature value of secondary temperature acquisition is differed by more than equal to 20 DEG C.If temperature is adopted three times
The temperature value that calculates twice concentrated is differed with the calculating temperature value of last time temperature acquisition still greater than equal to 20 DEG C, then by this twice
It calculates temperature value and takes arithmetic mean of instantaneous value, the calculating temperature value as this temperature acquisition.Such as：In certain temperature acquisition, deposit
The calculating temperature value of the last temperature sensor measurement of device storage is 24.017.The acquisition pulse number of temperature sensor passback,
The calculating temperature value calculated by controller is more than 44.017.It then needs to carry out temperature acquisition three times again.If it is posterior twice
It is 44.117 and 44.317 to calculate temperature value, then this is taken to calculate the calculating of the arithmetic mean of instantaneous value of temperature value twice as follows：（44.117+
44.317）/ 2=44.217, the calculating temperature value of this temperature acquisition is 44.217 DEG C.If there was only one in temperature acquisition three times
The secondary temperature value that calculates is differed with the calculating temperature value of last time temperature acquisition still greater than equal to 20 DEG C, then abandoning adopting when this temperature
Collection.In order to reduce the influence of abnormal temperature under cas fortuit, it is necessary to calculate the effective temperature value of temperature acquisition.This calculates temperature
30% weighted average of 70% be worth and last computation temperature value is the effective temperature value of this temperature acquisition.Such as：In certain temperature
In degree acquisition, controller obtains 24.717 DEG C of the calculating temperature value of this temperature sensor measurement, and counter register stores upper
The calculating temperature value of temperature sensor measurement is 24.017 DEG C, then the effective temperature value of this temperature acquisition of temperature sensor
It calculates as follows：（24.717 × 70%+24.017 × 30%）/（70%+30%）=24.507, this temperature acquisition of degree sensor
Effective temperature value is 24.507 DEG C.Gas equation P0 × V0/T0=P1 × V1/T1, wherein：P0, V0, T0 are under standard condition
Pressure, volume and the temperature of combustion gas, are known.P1, V1, T1 are pressure, volume and the temperature of combustion gas under current environment.Pressure P1
It is returned by pressure sensor, T1 temperature is effective temperature value, and controller is calculated volume V1 according to gas equation, as works as
Preceding combustion gas uses volume.
Claims (5)
1. a kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter, it includes：The controller of gas meter, flow meter connects with controller
The counter register that connects, temperature sensor and pressure sensor, which is characterized in that the counter register stores and the temperature
The temperature and the umber of pulse table of comparisons that degree sensor is adapted, in units of 10 DEG C, are divided into several calculating sections by temperature range, often count
It is threshold impulse number to calculate the corresponding umber of pulse of section two ends temperature value；Acquisition pulse number that controller returns temperature sensor with
Each threshold impulse number for calculating section compares, and determines which, which falls into, calculates section, will be greater than the small thresholding umber of pulse of the calculating section and is less than
The acquisition pulse number of big thresholding umber of pulse, is linearly calculated with the temperature of the calculating section and corresponding umber of pulse, is calculated
Temperature score value, calculating temperature score value, temperature value corresponding with the small thresholding umber of pulse of the calculating section is added to obtain temperature sensor survey again
The calculating temperature value of amount；This calculates the weighted average of temperature value and last computation temperature value, for having for this temperature acquisition
Imitate temperature value；According to gas equation, by compared with mark condition temperature, pressure and combustion gas volume, obtaining temperature sensor measurement
The passback of effective temperature value and pressure sensor pressure value under combustion gas use volume.
2. a kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter according to claim 1, it is characterised in that：Temperature
During the effective temperature value of degree acquisition calculates, the flexible strategy of the calculating temperature value of this temperature acquisition are 70%, and last time temperature acquisition calculates
The flexible strategy of temperature value are 30%.
3. a kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter according to claim 1, it is characterised in that：Temperature
In this temperature acquisition of degree sensor, acquisition pulse number is not in temperature and the umber of pulse table of comparisons, then temperature sensor needs weight
New acquisition.
4. a kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter according to claim 1, it is characterised in that：This
When the calculating temperature value of secondary temperature acquisition and the calculating temperature value of last temperature acquisition are differed by more than equal to 20 DEG C, then carry out three
Secondary temperature acquisition, if the temperature value that calculates twice three times in temperature acquisition differs still with the calculating temperature value of last temperature acquisition
More than or equal to 20 DEG C, then this is calculated to temperature value twice and take arithmetic mean of instantaneous value, the calculating temperature value as this temperature acquisition.
5. a kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter according to claim 1, it is characterised in that：Temperature
Degree sensor beams back acquisition pulse number, and controller is more identical with last time acquisition pulse number by this acquisition pulse number, starts to count
Number storage takes the umber of pulse of acquisition pulse number consecutive identical three times, is the acquisition pulse number of this temperature sensor.
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| CN201810014992.1A CN108072414B (en) | 2018-01-08 | 2018-01-08 | Electronic metering temperature and pressure compensation method for gas meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060060A (en) * | 2018-09-04 | 2018-12-21 | 宁夏隆基宁光仪表股份有限公司 | A kind of gas metering method and device based on temperature-compensating |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201215671Y (en) * | 2008-03-19 | 2009-04-01 | 康逸 | Pre-payment temperature compensation gas meter |
| CN202158882U (en) * | 2011-02-10 | 2012-03-07 | 银川天佳仪器仪表有限公司 | Diaphragm gas meter with temperature and pressure compensation |
| CN102944268A (en) * | 2012-12-05 | 2013-02-27 | 四川海力智能科技有限公司 | Intelligent gas meter with temperature compensation |
| CN205483117U (en) * | 2016-01-18 | 2016-08-17 | 广州市壹普电子科技有限公司 | Take temperature pressure compensation's diaphragm type gas table |
| CN205537807U (en) * | 2016-01-21 | 2016-08-31 | 四川海力智能科技股份有限公司 | Take temperature pressure compensation's gas table |
| CN106225862A (en) * | 2016-07-14 | 2016-12-14 | 神华集团有限责任公司 | The simple and direct compensation method of gas flow |
| WO2016200330A1 (en) * | 2015-06-12 | 2016-12-15 | Provtagaren Ab | Pulse cancelling for flow measurements |
-
2018
- 2018-01-08 CN CN201810014992.1A patent/CN108072414B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201215671Y (en) * | 2008-03-19 | 2009-04-01 | 康逸 | Pre-payment temperature compensation gas meter |
| CN202158882U (en) * | 2011-02-10 | 2012-03-07 | 银川天佳仪器仪表有限公司 | Diaphragm gas meter with temperature and pressure compensation |
| CN102944268A (en) * | 2012-12-05 | 2013-02-27 | 四川海力智能科技有限公司 | Intelligent gas meter with temperature compensation |
| WO2016200330A1 (en) * | 2015-06-12 | 2016-12-15 | Provtagaren Ab | Pulse cancelling for flow measurements |
| CN205483117U (en) * | 2016-01-18 | 2016-08-17 | 广州市壹普电子科技有限公司 | Take temperature pressure compensation's diaphragm type gas table |
| CN205537807U (en) * | 2016-01-21 | 2016-08-31 | 四川海力智能科技股份有限公司 | Take temperature pressure compensation's gas table |
| CN106225862A (en) * | 2016-07-14 | 2016-12-14 | 神华集团有限责任公司 | The simple and direct compensation method of gas flow |
Non-Patent Citations (2)
| Title |
|---|
| 何立民: "《单片机应用技术选编（1）》", 31 March 1993, 北京航空航天大学出版社 * |
| 邓立三: "《燃气计量》", 30 November 2011, 黄河水利出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060060A (en) * | 2018-09-04 | 2018-12-21 | 宁夏隆基宁光仪表股份有限公司 | A kind of gas metering method and device based on temperature-compensating |
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| CN108072414B (en) | 2021-02-19 |
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