CN112539791A - Electronic temperature and pressure compensation gas meter and compensation method - Google Patents

Electronic temperature and pressure compensation gas meter and compensation method Download PDF

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Publication number
CN112539791A
CN112539791A CN202011334991.9A CN202011334991A CN112539791A CN 112539791 A CN112539791 A CN 112539791A CN 202011334991 A CN202011334991 A CN 202011334991A CN 112539791 A CN112539791 A CN 112539791A
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gas
built
temperature
pressure
value
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李良
熊杰
谭巍
姚婵娟
舒杰
曾鹏程
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CHONGQING SHANCHENG GAS EQUIPMENT CO LTD
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CHONGQING SHANCHENG GAS EQUIPMENT CO LTD
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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
    • G01F15/043—Compensating or correcting for variations in pressure, density or temperature of gases to be measured using electrical means

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  • General Physics & Mathematics (AREA)
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  • Details Of Flowmeters (AREA)

Abstract

The invention discloses an electronic temperature and pressure compensation gas meter and a compensation method, wherein the compensation method comprises the following steps: casing, counter, table core, wherein, the counter includes: the counter comprises a counter base, a controller, a Hall element and a counter cover; the controller is used for acquiring a temperature value and a pressure value of the built-in gas, comparing the temperature value with a temperature threshold value, comparing the pressure value with a pressure threshold value, and performing electronic temperature and pressure compensation according to a comparison result to generate standard gas quantity; and the Hall element collects the pulse signal change under the standard condition air quantity, and counts according to the pulse signal change. The counting air flows under different temperature and pressure environments are subjected to electronic temperature and pressure compensation by arranging a temperature and pressure sensor and then are converted into the air flow under the standard condition, so that the counting air flows under different temperature and pressure environments are subjected to electronic temperature and pressure compensation and then are converted into the air flow under the standard condition; through installing hall element on the controller, solved the not synchronous problem of electromechanical after warm-pressing compensation, also can reduce cost simultaneously.

Description

Electronic temperature and pressure compensation gas meter and compensation method
Technical Field
The invention relates to the technical field of electronic temperature and pressure compensation gas meters, in particular to an electronic temperature and pressure compensation gas meter and a compensation method.
Background
Because the breadth of our country, the temperature and the atmospheric pressure of different regions are different, and the temperature and the pressure of the natural gas are different, when the gas meter without the temperature and pressure volume correction function is used for measuring the natural gas at the sale side, the measurement volume (hereinafter referred to as the working condition volume) in the working state is different from the volume (hereinafter referred to as the standard condition volume) in the standard state. The volume displayed by the household gas meter is the working condition volume, the gas company adopts the standard condition volume when buying natural gas from an upstream natural gas supplier, the working condition volume and the standard condition volume are inevitably different, and the problem that how the working condition volume displayed by the household gas meter is consistent with the standard condition volume is urgently needed to be solved by technical personnel in the field.
In addition, the traditional diaphragm gas meter adopts a mechanical counter to display measured natural gas measurement, so that the problem of electromechanical asynchronism after temperature and pressure compensation is easily caused, and the mechanical counter is high in cost, poor in durability, easy to wear and cause display errors.
Disclosure of Invention
Objects of the invention
In order to overcome at least one defect of the prior art, the counting air quantity under different temperature and pressure environments is converted into the air quantity under the standard condition after electronic temperature and pressure compensation is carried out on the counting air quantity under different temperature and pressure environments by arranging a temperature and pressure sensor, so that the counting air quantity under different temperature and pressure environments is converted into the air quantity under the standard condition after electronic temperature and pressure compensation is carried out on the counting air quantity; the Hall element is arranged on the controller, so that the problem of electromechanical asynchronism after temperature and pressure compensation is solved, and meanwhile, the cost can be reduced.
(II) technical scheme
As a first aspect of the present invention, the present invention discloses an electronic temperature and pressure compensation gas meter, including: a shell, a counter and a watch movement, wherein,
the counter includes: the counter comprises a counter base, a controller, a Hall element and a counter cover;
the controller is used for acquiring a temperature value and a pressure value of the built-in gas, comparing the temperature value with a temperature threshold value, comparing the pressure value with a pressure threshold value, and performing electronic temperature and pressure compensation according to a comparison result to generate standard gas quantity; the standard gas amount represents the volume of the built-in gas in a standard state;
and the Hall element collects the pulse signal change under the standard condition air quantity, and counts according to the pulse signal change.
In one possible embodiment, the controller includes: the device comprises a temperature sensor, a pressure sensor and a built-in gas volume conversion device;
the temperature sensor is used for acquiring a temperature value of the built-in gas, comparing the temperature value of the built-in gas with a temperature threshold value, and transmitting the temperature value of the built-in gas to the built-in gas volume conversion device if the temperature value is not in accordance with the temperature threshold value;
the pressure sensor is used for acquiring a pressure value of the built-in gas, comparing the pressure value of the built-in gas with a pressure threshold value, and transmitting the pressure value of the built-in gas to the built-in gas volume conversion device if the pressure value is not consistent with the pressure threshold value;
the built-in gas volume conversion device is used for collecting working condition gas volume, carrying out electronic temperature and pressure compensation according to the working condition gas volume, the temperature value of the built-in gas and the pressure value of the built-in gas, and converting the working condition gas volume into standard condition gas volume; the working condition gas amount represents the volume of the built-in gas in the working state.
In one possible embodiment, the built-in gas volume conversion device includes: the device comprises an acquisition module, a built-in gas temperature conversion module, a built-in gas temperature pressure conversion module and a compensation module;
the acquisition module is respectively connected with the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module and is used for acquiring working condition gas quantity and transmitting the working condition gas quantity to the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module;
the built-in gas temperature conversion module is used for calculating a first indicating value error according to the working condition gas quantity and the temperature value of the built-in gas;
the built-in gas temperature and pressure conversion module is used for calculating a second indicating value error according to the working condition gas quantity, the temperature value of the built-in gas and the pressure value of the built-in gas;
the compensation module is connected with the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module and used for carrying out electronic temperature and pressure compensation according to the first indicating value error and the second indicating value error and converting the working condition gas quantity into standard condition gas quantity.
In one possible embodiment, the calculation formula of the first indicating value error in the built-in gas temperature conversion module is as follows:
Figure BDA0002796495830000041
wherein E isaIndicating a first indicating error, Q1Indicating working condition gas quantity, Q2Indicating standard condition gas quantity, T2Denotes the thermodynamic temperature, T, in the standard state1Denotes the reference gas temperature, p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2Which represents the absolute pressure at the gas meter inlet in the standard state.
In one possible embodiment, the calculation formula of the second indicating value error in the built-in gas temperature and pressure conversion module is as follows:
Figure BDA0002796495830000042
wherein E isbIndicating a first indicating error, p3Indicating standard atmospheric pressure.
In one possible embodiment, the temperature sensor is further configured to:
and if the temperature value of the built-in gas is consistent with the temperature threshold value, measuring the gas volume under the temperature value of the built-in gas.
In one possible embodiment, the pressure sensor is further configured to:
and if the pressure value of the built-in gas is consistent with the pressure threshold value, measuring the gas volume under the pressure value of the built-in gas.
In one possible embodiment, the controller further includes: a generating device;
the generating device is connected with the temperature sensor and the pressure sensor and is used for taking the gas volume under the temperature value of the built-in gas and the gas volume under the pressure value of the built-in gas as standard gas quantities.
In one possible embodiment, the watch movement comprises: a cut-off valve, a setting device, an inflation solenoid valve and a fixed solenoid valve;
the setting device is connected with the controller and the cut-off valve and is used for setting an inflation stop pressure value according to the first error value and the second error value and controlling the internal pressure of the cut-off valve according to the inflation stop pressure value;
the inflation electromagnetic valve is connected with the controller and the cut-off valve and is used for controlling the cut-off valve to inflate the interior according to the first error value and the second error value;
the fixed electromagnetic valve is connected with the stop valve and used for fixing the position of the stop valve.
In a possible implementation, the counter further includes: a driving wheel, a duplex driven wheel and a counter group;
the driving wheel is connected with the Hall element and the duplex driven wheel and is used for rotating according to the change of the pulse signal and pushing the duplex driven wheel to rotate;
the duplex driven wheel is connected with the counter group and used for pushing the counter group to rotate according to the rotation of the duplex driven wheel.
In a possible embodiment, the driving wheel is further configured to:
and driving the duplex driven wheel to rotate for one circle when the duplex driven wheel rotates for one circle according to the pulse signal.
In one possible embodiment, the double driven wheel includes:
and when the duplex driven wheel rotates for one circle, the current counter block of the counter group is pushed to be converted with the next counter block.
The invention also discloses a compensation method of the electronic temperature and pressure compensation gas meter, which comprises the following steps:
the method comprises the following steps that a controller collects a temperature value and a pressure value of built-in gas, compares the temperature value with a temperature threshold value, compares the pressure value with a pressure threshold value, and performs electronic temperature and pressure compensation according to a comparison result to generate standard gas quantity;
and the Hall element collects the pulse signal change under the standard condition air quantity, and counts according to the pulse signal change.
In one possible embodiment, the method comprises the following steps:
the temperature sensor collects the temperature value of the built-in gas, compares the temperature value of the built-in gas with a temperature threshold value, and transmits the temperature value of the built-in gas to the built-in gas volume conversion device if the temperature value does not accord with the temperature threshold value;
the pressure sensor collects the pressure value of the built-in gas, compares the pressure value of the built-in gas with a pressure threshold value, and transmits the pressure value of the built-in gas to the built-in gas volume conversion device if the pressure value is not consistent with the pressure threshold value;
the built-in gas volume conversion device collects working condition gas volume, electronic temperature and pressure compensation is carried out according to the working condition gas volume, the temperature value of the built-in gas and the pressure value of the built-in gas, and the working condition gas volume is converted into standard condition gas volume.
In a possible embodiment, the step of collecting the working condition gas amount by the internal gas volume conversion device, performing electronic temperature and pressure compensation according to the working condition gas amount, the temperature value of the internal gas, and the pressure value of the internal gas, and converting the working condition gas amount into the standard condition gas amount includes:
the collecting module collects working condition gas quantity and transmits the working condition gas quantity to the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module;
the built-in gas temperature conversion module calculates a first indicating value error according to the working condition gas quantity and the temperature value of the built-in gas;
the built-in gas temperature and pressure conversion module calculates a second indicating value error according to the working condition gas quantity, the temperature value of the built-in gas and the pressure value of the built-in gas;
and the compensation module performs electronic temperature and pressure compensation according to the first indicating value error and the second indicating value error and converts the working condition air quantity into standard condition air quantity.
In one possible embodiment, the first indicating error is calculated as follows:
Figure BDA0002796495830000071
wherein E isaIndicating a first indicating error, Q1Indicating the volume of gas contained in the operating state, Q2Denotes the volume of the gas contained in the gas at the standard state, T2Denotes the thermodynamic temperature, T, in the standard state1Denotes the reference gas temperature, p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2Which represents the absolute pressure at the gas meter inlet in the standard state.
In one possible embodiment, the calculation formula of the second indicating value error in the built-in gas temperature and pressure conversion module is as follows:
Figure BDA0002796495830000081
wherein E isbIndicating a first indicating error, p3Indicating standard atmospheric pressure.
In a possible embodiment, the comparing the temperature value of the internal gas with a temperature threshold further includes:
and if the temperature value of the built-in gas is consistent with the temperature threshold value, measuring the gas volume under the temperature value of the built-in gas.
In a possible embodiment, the comparing the pressure value of the built-in gas with a pressure threshold further includes:
and if the pressure value of the built-in gas is consistent with the pressure threshold value, measuring the gas volume under the pressure value of the built-in gas.
In one possible embodiment, the method further comprises:
the generation device takes the gas volume at the temperature value of the built-in gas and the gas volume at the pressure value of the built-in gas as standard gas quantities.
In one possible embodiment, the method further comprises:
the setting device sets an inflation stopping pressure value according to the first error value and the second error value, and controls the internal pressure of the cut-off valve according to the inflation stopping pressure value;
the inflation solenoid valve controls the cut-off valve to carry out internal inflation according to the first error value and the second error value;
the fixed electromagnetic valve fixes the position of the cut-off valve.
In a possible implementation mode, a driving wheel rotates according to the pulse signal change to push the duplex driven wheel to rotate;
the double driven wheel pushes the counter group to rotate according to the rotation of the double driven wheel.
In a possible implementation manner, the driving wheel rotates according to the pulse signal change to push the duplex driven wheel to rotate, and the method includes:
and driving the duplex driven wheel to rotate for one circle when the duplex driven wheel rotates for one circle according to the pulse signal.
In a possible embodiment, the double driven wheel pushes the counter group to rotate according to the rotation of the double driven wheel, and the double driven wheel comprises:
and when the duplex driven wheel rotates for one circle, the current counter block of the counter group is pushed to be converted with the next counter block.
As a third aspect of the present invention, the present invention also discloses a controller for electronic temperature and pressure compensation, including: the device comprises a temperature sensor, a pressure sensor and a built-in gas volume conversion device;
the temperature sensor is used for acquiring a temperature value of the built-in gas, comparing the temperature value of the built-in gas with a temperature threshold value, and transmitting the temperature value of the built-in gas to the built-in gas volume conversion device if the temperature value is not in accordance with the temperature threshold value;
the pressure sensor is used for acquiring a pressure value of the built-in gas, comparing the pressure value of the built-in gas with a pressure threshold value, and transmitting the pressure value of the built-in gas to the built-in gas volume conversion device if the pressure value is not consistent with the pressure threshold value;
the built-in gas volume conversion device is used for collecting working condition gas volume, carrying out electronic temperature and pressure compensation according to the working condition gas volume, the temperature value of the built-in gas and the pressure value of the built-in gas, and converting the working condition gas volume into standard condition gas volume; the working condition gas amount represents the volume of the built-in gas in the working state.
In one possible embodiment, the built-in gas volume conversion device includes: the device comprises an acquisition module, a built-in gas temperature conversion module, a built-in gas temperature pressure conversion module and a compensation module;
the acquisition module is respectively connected with the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module and is used for acquiring working condition gas quantity and transmitting the working condition gas quantity to the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module;
the built-in gas temperature conversion module is used for calculating a first indicating value error according to the working condition gas quantity and the temperature value of the built-in gas;
the built-in gas temperature and pressure conversion module is used for calculating a second indicating value error according to the working condition gas quantity, the temperature value of the built-in gas and the pressure value of the built-in gas;
the compensation module is connected with the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module and used for carrying out electronic temperature and pressure compensation according to the first indicating value error and the second indicating value error and converting the working condition gas quantity into standard condition gas quantity.
In one possible embodiment, the calculation formula of the first indicating value error in the built-in gas temperature conversion module is as follows:
Figure BDA0002796495830000101
wherein E isaIndicating a first indicating error, Q1Indicating the volume of gas contained in the operating state, Q2Denotes the volume of the gas contained in the gas at the standard state, T2Denotes the thermodynamic temperature, T, in the standard state1Denotes the reference gas temperature, p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2Which represents the absolute pressure at the gas meter inlet in the standard state.
In one possible embodiment, the calculation formula of the second indicating value error in the built-in gas temperature and pressure conversion module is as follows:
Figure BDA0002796495830000111
wherein E isbIndicating a first indicating error, p3Indicating standard atmospheric pressure.
In one possible embodiment, the temperature sensor is further configured to:
and if the temperature value of the built-in gas is consistent with the temperature threshold value, measuring the gas volume under the temperature value of the built-in gas.
In one possible embodiment, the pressure sensor is further configured to:
and if the pressure value of the built-in gas is consistent with the pressure threshold value, measuring the gas volume under the pressure value of the built-in gas.
In one possible embodiment, the method further comprises: a generating device;
the generating device is connected with the temperature sensor and the pressure sensor and is used for taking the gas volume under the temperature value of the built-in gas and the gas volume under the pressure value of the built-in gas as standard gas quantities.
As a fourth aspect of the present invention, the present invention also discloses an electronic temperature and pressure compensation method, including the following steps:
the temperature sensor collects the temperature value of the built-in gas, compares the temperature value of the built-in gas with a temperature threshold value, and transmits the temperature value of the built-in gas to the built-in gas volume conversion device if the temperature value does not accord with the temperature threshold value;
the pressure sensor collects the pressure value of the built-in gas, compares the pressure value of the built-in gas with a pressure threshold value, and transmits the pressure value of the built-in gas to the built-in gas volume conversion device if the pressure value is not consistent with the pressure threshold value;
the built-in gas volume conversion device collects working condition gas volume, electronic temperature and pressure compensation is carried out according to the working condition gas volume, the temperature value of the built-in gas and the pressure value of the built-in gas, and the working condition gas volume is converted into standard condition gas volume.
In a possible embodiment, the step of collecting the working condition gas amount by the internal gas volume conversion device, performing electronic temperature and pressure compensation according to the working condition gas amount, the temperature value of the internal gas, and the pressure value of the internal gas, and converting the working condition gas amount into the standard condition gas amount includes:
the collecting module collects working condition gas quantity and transmits the working condition gas quantity to the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module;
the built-in gas temperature conversion module calculates a first indicating value error according to the working condition gas quantity and the temperature value of the built-in gas;
the built-in gas temperature and pressure conversion module calculates a second indicating value error according to the working condition gas quantity, the temperature value of the built-in gas and the pressure value of the built-in gas;
and the compensation module performs electronic temperature and pressure compensation according to the first indicating value error and the second indicating value error and converts the working condition air quantity into standard condition air quantity.
In one possible embodiment, the first indicating error is calculated as follows:
Figure BDA0002796495830000131
wherein E isaIndicating a first indicating error, Q1Indicating the volume of gas contained in the operating state, Q2Denotes the volume of the gas contained in the gas at the standard state, T2Denotes the thermodynamic temperature, T, in the standard state1Denotes the reference gas temperature, p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2Which represents the absolute pressure at the gas meter inlet in the standard state.
In one possible embodiment, the calculation formula of the second indicating value error in the built-in gas temperature and pressure conversion module is as follows:
Figure BDA0002796495830000132
wherein E isbTo representFirst indicating error, p3Indicating standard atmospheric pressure.
In a possible embodiment, the comparing the temperature value of the internal gas with a temperature threshold further includes:
and if the temperature value of the built-in gas is consistent with the temperature threshold value, measuring the gas volume under the temperature value of the built-in gas.
In a possible embodiment, the comparing the pressure value of the built-in gas with a pressure threshold further includes:
and if the pressure value of the built-in gas is consistent with the pressure threshold value, measuring the gas volume under the pressure value of the built-in gas.
In one possible embodiment, the method further comprises:
the generation device takes the gas volume at the temperature value of the built-in gas and the gas volume at the pressure value of the built-in gas as standard gas quantities.
(III) advantageous effects
The invention discloses an electronic temperature and pressure compensation gas meter and a compensation method, which have the following beneficial effects:
1. through setting up temperature and pressure sensor, carry out electronic temperature and pressure compensation to the count tolerance under different temperature and pressure environment and convert the use tolerance under the standard condition into for count tolerance under different temperature and pressure environment carries out electronic temperature and pressure compensation and then converts the use tolerance under the standard condition into.
2. The Hall element is arranged on the controller, and replaces a mechanical counter, so that the problem of electromechanical asynchronism after temperature and pressure compensation is solved, and meanwhile, the cost can be reduced.
Drawings
The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining and illustrating the present invention and should not be construed as limiting the scope of the present invention.
Fig. 1 is a schematic structural diagram of an electronic temperature and pressure compensation gas meter disclosed by the invention;
FIG. 2 is a schematic diagram of an electronic temperature and pressure compensation gas meter according to the present disclosure;
FIG. 3 is a flow chart of a compensation method of an electronic temperature and pressure compensation gas meter according to the present invention;
FIG. 4 is a flowchart of step S101 of the present disclosure;
FIG. 5 is a flowchart of step S1013 disclosed by the present invention;
FIG. 6 is a schematic structural diagram of an electronic temperature and pressure compensation controller according to the present invention;
fig. 7 is a flowchart of an electronic temperature and pressure compensation method disclosed in the present invention.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.
It should be noted that: in the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are some embodiments of the present invention, not all embodiments, and features in embodiments and embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
The following describes an electronic temperature and pressure compensation gas meter disclosed by the present invention in detail with reference to fig. 1-2, including: a housing 1, a counter 2, a watch movement 3, wherein,
the counter 2 includes: a counter base 4, a controller 5, a hall element 6, a counter cover 7;
the controller 5 is used for acquiring a temperature value and a pressure value of the built-in gas, comparing the temperature value with a temperature threshold value, comparing the pressure value with a pressure threshold value, and performing electronic temperature and pressure compensation according to a comparison result to generate standard gas quantity; the standard gas amount represents the volume of the built-in gas in a standard state;
the Hall element 6 collects the pulse signal change under the standard condition air quantity, and counting is carried out according to the pulse signal change.
Specifically, pulse signals appear alternately through the double Hall sensors to realize counting.
Further, the hall element includes: a Hall sensor and a signal processing circuit; the Hall sensor is used for converting the rotating speed into a pulse signal; the signal processing circuit is used for performing signal processing such as signal amplification, waveform shaping, waveform conversion and the like on the pulse signal.
In the embodiment, the counting air quantities in different temperature and pressure environments are subjected to electronic temperature and pressure compensation and then converted into the air quantities under the standard condition by arranging the temperature and pressure sensors, so that the counting air quantities in different temperature and pressure environments are subjected to electronic temperature and pressure compensation and then converted into the air quantities under the standard condition; and install hall element on the controller, replace mechanical counter with hall element, not only solved the electromechanical asynchronous problem after warm-pressing compensation, also can reduce cost simultaneously.
In one embodiment, the controller 5 includes: a temperature sensor 8, a pressure sensor 9, a built-in gas volume conversion device 10;
the temperature sensor 8 is configured to acquire a temperature value of the internal gas, compare the temperature value of the internal gas with a temperature threshold, and transmit the temperature value of the internal gas to the internal gas volume conversion device 10 if the temperature value does not match the temperature threshold.
Specifically, the temperature sensor 8 is further configured to: and if the temperature value of the built-in gas is consistent with the temperature threshold value, measuring the gas volume under the temperature value of the built-in gas.
Further, the gas volume at the temperature value of the built-in gas obtained by measurement is the volume of the built-in gas in a standard state.
The pressure sensor 9 is configured to collect a pressure value of the internal gas, compare the pressure value of the internal gas with a pressure threshold, and transmit the pressure value of the internal gas to the internal gas volume conversion device 10 if the pressure value does not meet the pressure threshold.
Specifically, the pressure sensor 9 is further configured to: and if the pressure value of the built-in gas is consistent with the pressure threshold value, measuring the gas volume under the pressure value of the built-in gas.
Further, the gas volume at the pressure value of the built-in gas obtained by the measurement is the volume of the built-in gas in a standard state.
The built-in gas volume conversion device 10 is used for collecting working condition gas volume, performing electronic temperature and pressure compensation according to the working condition gas volume, the temperature value of the built-in gas and the pressure value of the built-in gas, and converting the working condition gas volume into standard condition gas volume; the working condition gas amount represents the volume of the built-in gas in the working state.
Specifically, the electronic temperature and pressure compensation needs to periodically acquire temperature values and pressure values of gas contained in the gas meter.
In one embodiment, the built-in gas volume conversion device 10 comprises: the system comprises an acquisition module 11, a built-in gas temperature conversion module 12, a built-in gas temperature pressure conversion module 13 and a compensation module 14;
the acquisition module 11 is respectively connected with the built-in gas temperature conversion module 12 and the built-in gas temperature pressure conversion module 13, and is used for acquiring working condition gas quantity and transmitting the working condition gas quantity to the built-in gas temperature conversion module 12 and the built-in gas temperature pressure conversion module 13;
the built-in gas temperature conversion module 12 is configured to calculate a first indicating value error according to the working condition gas amount and the temperature value of the built-in gas.
Specifically, the calculation formula of the first indicating error is as follows:
Figure BDA0002796495830000181
wherein E isaIndicating a first indicating error, Q1Indicating working condition gas quantity, Q2Indicating standard condition gas quantity, T2Denotes the thermodynamic temperature, T, in the standard state1Denotes the reference gas temperature (293.15K), p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2Which represents the absolute pressure at the gas meter inlet in the standard state.
The built-in gas temperature and pressure conversion module 13 is configured to calculate a second indicating value error according to the working condition gas amount, the temperature value of the built-in gas, and the pressure value of the built-in gas.
Specifically, the calculation formula of the second indicating error is as follows:
Figure BDA0002796495830000182
wherein E isbIndicating a first indicating error, p3Indicating standard atmospheric pressure (101325 Pa).
Specifically, the first indicating value error is less than or equal to 0.6%, and the second error value is less than or equal to 0.6%.
The compensation module 14 is connected to the internal gas temperature conversion module 12 and the internal gas temperature pressure conversion module 13, and is configured to perform electronic temperature and pressure compensation according to the first indication error and the second indication error, and convert the operating condition gas amount into a standard condition gas amount.
Specifically, correcting the volume of the built-in gas through the first indicating error and the second indicating error specifically includes: and supplementing the built-in gas according to the first indicating error and the second indicating error until the volume of the built-in gas reaches the standard gas volume, and stopping supplementing the gas.
In one embodiment, the controller 5 further includes: a generating means 15;
the generating device 15 is connected to the temperature sensor 8 and the pressure sensor 9, and is configured to use a gas volume at a temperature value of the built-in gas and a gas volume at a pressure value of the built-in gas as standard gas quantities.
Specifically, when the temperature value of the built-in gas matches the temperature threshold value and the pressure value of the built-in gas matches the pressure threshold value, the volume of the built-in gas in a standard state is generated by combining the gas volume at the temperature value and the gas volume at the pressure value of the built-in gas obtained by measurement.
In one embodiment, watch movement 3, comprises: a cut-off valve 16, a setting device 17, an inflation electromagnetic valve 18 and a fixed electromagnetic valve 19;
the setting device 17 is connected with the controller 5 and the cut-off valve 16, and is used for setting an inflation stop pressure value according to the first error value and the second error value, and controlling the internal pressure of the cut-off valve according to the inflation stop pressure value.
Specifically, when the gas pressure inside the shut-off valve reaches a set inflation stop pressure value, the inflation is stopped.
The inflation solenoid valve 18 is connected to the controller 5 and the cut-off valve 16, and is used for controlling the cut-off valve to inflate internally (so that a certain gas pressure is formed inside the cut-off valve) according to the first error value and the second error value.
The fixed solenoid valve 19 is connected to the shut valve 16 for fixing the position of the shut valve (avoiding errors due to displacement of the shut valve).
Further, the meter movement is also used for detecting the tightness of the gas meter, and the specific detection steps are as follows:
firstly, automatically setting inflation stopping pressure p and leak detection time t (for example, the inflation stopping pressure is set to be 15k Pa, the leak detection time is set to be 30s and the like) by a setting device according to needs;
secondly, the controller sends an instruction to the fixed electromagnetic valve, and the fixed electromagnetic valve fixes the built-in cut-off valve to be tested so that the cut-off valve cannot be moved;
the controller controls the inflation electromagnetic valve to inflate and pressurize the cut-off valve in a valve closing state;
fourthly, the pressure sensor collects a gas pressure signal inside the built-in cut-off valve, converts the pressure signal into a digital signal and sends the digital signal to the controller; when the gas pressure in the cutoff valve is larger than or equal to the preset inflation stopping pressure, the controller controls the inflation solenoid valve to stop inflating the cutoff valve, controls the timer to start timing, and records the pressure of the equipment to be tested as the first pressure pa；
When the time recorded by the timer reaches the preset leak detection time length, recording the pressure of the built-in cut-off valve as a second pressure pb；
Sixthly, the controller calculates the first pressure paAnd a second pressure pbPressure difference Δ p of (d);
the controller compares the measured gas pressure difference delta p with a preset gas pressure difference delta p stored in the controller0(ii) a If the gas pressure difference Δ p is less than or equal to the preset gas pressure difference Δ p0If the detection result is qualified; if the pressure difference delta p is larger than the preset gas pressure difference delta p0If the detection result is unqualified;
and eighthly, after the result is judged, the controller controls the stroke electromagnetic valve to release the built-in stop valve to finish detection.
In one embodiment, the counter 2 further includes: a driving wheel 20, a duplex driven wheel 21 and a counter group 22;
the driving wheel 20 is connected with the hall element 6 and the duplex driven wheel 21, and is configured to rotate according to the change of the pulse signal, so as to push the duplex driven wheel 21 to rotate.
Specifically, the duplex driven wheel 21 is driven to rotate for one circle when the duplex driven wheel rotates for one circle according to the pulse signal.
The duplex driven wheel 21 is connected with the counter group 22 and used for pushing the counter group 22 to rotate according to the rotation of the duplex driven wheel.
Specifically, each time the duplex driven wheel 21 rotates one turn, the current counter block of the counter group 22 is pushed to be switched with the next counter block.
Furthermore, the counter group adopts a four-digit nixie tube display circuit.
Referring to fig. 3, the following describes in detail, and based on the same inventive concept, an embodiment of the present invention further provides a first embodiment of a compensation method for an electronic temperature and pressure compensation gas meter. Because the principle of the problem solved by the system is similar to that of the electronic temperature and pressure compensation gas meter, the implementation of the system can be referred to the implementation of the system, and repeated details are not repeated.
As shown in fig. 3, the present embodiment mainly includes:
s101, a controller collects a temperature value and a pressure value of the built-in gas, compares the temperature value of the built-in gas with a temperature threshold value, compares the pressure value of the built-in gas with a pressure threshold value, and performs electronic temperature and pressure compensation according to a comparison result to generate standard gas quantity.
S102, the Hall element collects the pulse signal change under the standard condition air quantity, and counting is carried out according to the pulse signal change.
Specifically, pulse signals appear alternately through the double Hall sensors to realize counting.
In the embodiment, the counting air quantities in different temperature and pressure environments are subjected to electronic temperature and pressure compensation and then converted into the air quantities under the standard condition by arranging the temperature and pressure sensors, so that the counting air quantities in different temperature and pressure environments are subjected to electronic temperature and pressure compensation and then converted into the air quantities under the standard condition; besides, the Hall element is arranged on the controller, and replaces a mechanical counter, so that the problem of electromechanical asynchronism after temperature and pressure compensation is solved, and meanwhile, the cost can be reduced.
In one embodiment, as shown in fig. 4, step S101 includes:
s1011, the temperature sensor collects the temperature value of the built-in gas, compares the temperature value of the built-in gas with a temperature threshold value, and transmits the temperature value of the built-in gas to the built-in gas volume conversion device if the temperature value does not accord with the temperature threshold value.
Specifically, if the temperature value of the built-in gas matches the temperature threshold value, the gas volume at the temperature value of the built-in gas is measured.
S1012, the pressure sensor collects the pressure value of the built-in gas, compares the pressure value of the built-in gas with a pressure threshold value, and transmits the pressure value of the built-in gas to the built-in gas volume conversion device if the pressure value is not consistent with the pressure threshold value.
Specifically, if the pressure value of the built-in gas matches the pressure threshold value, the gas volume at the pressure value of the built-in gas is measured.
S1013, the built-in gas volume conversion device collects working condition gas volume, electronic temperature and pressure compensation is carried out according to the working condition gas volume, the temperature value of the built-in gas and the pressure value of the built-in gas, and the working condition gas volume is converted into standard condition gas volume.
Specifically, the electronic temperature and pressure compensation needs to periodically acquire temperature values and pressure values of gas contained in the gas meter.
In one embodiment, as shown in fig. 5, step S1013 is that the built-in gas volume conversion device collects working condition gas volume, performs electronic temperature and pressure compensation according to the working condition gas volume, the temperature value of the built-in gas, and the pressure value of the built-in gas, and converts the working condition gas volume into standard condition gas volume, including:
s10131, collecting working condition gas quantity by a collecting module, and transmitting the working condition gas quantity to a built-in gas temperature conversion module and a built-in gas temperature pressure conversion module;
s10132, the built-in gas temperature conversion module calculates a first indicating value error according to the working condition gas quantity and the temperature value of the built-in gas.
Specifically, the calculation formula of the first indicating error is as follows:
Figure BDA0002796495830000231
wherein E isaIndicating a first indicating error, Q1Indicating the volume of gas contained in the operating state, Q2Denotes the volume of the gas contained in the gas at the standard state, T2Denotes the thermodynamic temperature, T, in the standard state1Denotes the reference gas temperature (293.15K), p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2Which represents the absolute pressure at the gas meter inlet in the standard state.
S10133, the built-in gas temperature and pressure conversion module calculates a second indicating value error according to the working condition gas quantity, the temperature value of the built-in gas and the pressure value of the built-in gas.
Specifically, the calculation formula of the second indicating error is as follows:
Figure BDA0002796495830000241
wherein E isbIndicating a first indicating error, p3Indicating standard atmospheric pressure (101325 Pa).
Specifically, the first indicating value error is less than or equal to 0.6%, and the second error value is less than or equal to 0.6%.
S10134, the compensation module performs electronic temperature and pressure compensation according to the first indicating value error and the second indicating value error, and the working condition air quantity is converted into standard condition air quantity.
Specifically, correcting the volume of the built-in gas through the first indicating error and the second indicating error specifically includes: and supplementing the built-in gas according to the first indicating error and the second indicating error until the volume of the built-in gas reaches the standard gas volume, and stopping supplementing the gas.
In one embodiment, step S101 further includes:
and S1014, the generating device takes the gas volume under the temperature value of the built-in gas and the gas volume under the pressure value of the built-in gas as standard gas quantities.
Specifically, when the temperature value of the built-in gas matches the temperature threshold value and the pressure value of the built-in gas matches the pressure threshold value, the volume of the built-in gas in a standard state is generated by combining the gas volume at the temperature value and the gas volume at the pressure value of the built-in gas obtained by measurement.
In one embodiment, further comprising:
s103, setting a stop inflation pressure value by a setting device according to the first error value and the second error value, and controlling the internal pressure of the cut-off valve according to the stop inflation pressure value.
Specifically, when the gas pressure inside the shut-off valve reaches a set inflation stop pressure value, the inflation is stopped.
S104, controlling the cut-off valve to carry out internal inflation (so that a certain gas pressure is formed inside the cut-off valve) by an inflation solenoid valve according to the first error value and the second error value;
and S105, fixing the position of the cut-off valve by a fixed electromagnetic valve (so as to avoid errors caused by the displacement of the cut-off valve).
In one embodiment, further comprising:
and S106, the driving wheel rotates according to the change of the pulse signal to push the duplex driven wheel to rotate.
Specifically, the duplex driven wheel is driven to rotate for one circle according to each circle of rotation of the pulse signal.
And S107, the double driven wheel pushes the counter group to rotate according to the rotation of the double driven wheel.
Specifically, each time the duplex driven wheel rotates one circle, the current counter block of the counter group is pushed to be converted with the next counter block.
Referring to fig. 6, the embodiment of the present invention further provides a first embodiment of the electronic temperature and pressure compensation controller 5 based on the same inventive concept. Because the principle of the problem solved by the electronic temperature and pressure compensation controller 5 is similar to that of the electronic temperature and pressure compensation gas meter, the implementation of the controller 5 can refer to the implementation of the system, and repeated details are not repeated.
As shown in fig. 6, the present embodiment mainly includes a temperature sensor 8, a pressure sensor 9, and a built-in gas volume conversion device 10;
the temperature sensor 8 is configured to acquire a temperature value of the internal gas, compare the temperature value of the internal gas with a temperature threshold, and transmit the temperature value of the internal gas to the internal gas volume conversion device 10 if the temperature value does not match the temperature threshold.
Specifically, the temperature sensor 8 is further configured to: and if the temperature value of the built-in gas is consistent with the temperature threshold value, measuring the gas volume under the temperature value of the built-in gas.
The pressure sensor 9 is configured to collect a pressure value of the internal gas, compare the pressure value of the internal gas with a pressure threshold, and transmit the pressure value of the internal gas to the internal gas volume conversion device 10 if the pressure value does not meet the pressure threshold.
Specifically, the pressure sensor 9 is further configured to: and if the pressure value of the built-in gas is consistent with the pressure threshold value, measuring the gas volume under the pressure value of the built-in gas.
The built-in gas volume conversion device 10 is used for collecting working condition gas volume, performing electronic temperature and pressure compensation according to the working condition gas volume, the temperature value of the built-in gas and the pressure value of the built-in gas, and converting the working condition gas volume into standard condition gas volume; the working condition gas amount represents the volume of the built-in gas in the working state.
In this embodiment, through setting up temperature and pressure sensor, count tolerance under different temperature and pressure environment carries out electronic temperature-pressure compensation and converts the use tolerance under the standard condition into for count tolerance under different temperature and pressure environment carries out electronic temperature-pressure compensation and converts the use tolerance under the standard condition into, has reduced the error between operating mode tolerance and the standard condition tolerance.
In one embodiment, the built-in gas volume conversion device 10 comprises: the system comprises an acquisition module 11, a built-in gas temperature conversion module 12, a built-in gas temperature pressure conversion module 13 and a compensation module 14;
the acquisition module 11 is respectively connected with the built-in gas temperature conversion module 12 and the built-in gas temperature pressure conversion module 13, and is used for acquiring working condition gas quantity and transmitting the working condition gas quantity to the built-in gas temperature conversion module 12 and the built-in gas temperature pressure conversion module 13;
the built-in gas temperature conversion module 12 is used for calculating a first indicating value error according to the working condition gas quantity and the temperature value of the built-in gas;
the built-in gas temperature and pressure conversion module 13 is used for calculating a second indicating value error according to the working condition gas quantity, the temperature value of the built-in gas and the pressure value of the built-in gas;
the compensation module 14 is connected to the internal gas temperature conversion module 12 and the internal gas temperature pressure conversion module 13, and is configured to perform electronic temperature and pressure compensation according to the first indication error and the second indication error, and convert the operating condition gas amount into a standard condition gas amount.
Specifically, the calculation formula of the first indicating error is as follows:
Figure BDA0002796495830000271
wherein E isaIndicating a first indicating error, Q1Indicating working condition gas quantity, Q2Indicating standard condition gas quantity, T2Denotes the thermodynamic temperature, T, in the standard state1Denotes the reference gas temperature (293.15K), p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2Which represents the absolute pressure at the gas meter inlet in the standard state.
Further, the calculation formula of the second indicating error is as follows:
Figure BDA0002796495830000281
wherein E isbIndicating a first indicating error, p3Indicating standard atmospheric pressure (101325 Pa).
In one embodiment, the controller 5 further includes: a generating means 15;
the generating device is connected with the temperature sensor 8 and the pressure sensor 9, and is used for taking the gas volume under the temperature value of the built-in gas and the gas volume under the pressure value of the built-in gas as standard gas quantities.
Referring to fig. 7, the embodiment of the present invention further provides a first embodiment of an electronic temperature and pressure compensation method based on the same inventive concept. The principle of the problem solved by the system is similar to that of the compensation method of the electronic temperature and pressure compensation gas meter, so the implementation of the method can be referred to the implementation of the method, and repeated details are not repeated.
As shown in fig. 7, the present embodiment mainly includes the following steps:
s201, a temperature sensor collects a temperature value of the built-in gas, compares the temperature value of the built-in gas with a temperature threshold value, and transmits the temperature value of the built-in gas to a built-in gas volume conversion device if the temperature value does not accord with the temperature threshold value.
Specifically, if the temperature value of the built-in gas matches the temperature threshold value, the gas volume at the temperature value of the built-in gas is measured.
S202, a pressure sensor collects a pressure value of the built-in gas, the pressure value of the built-in gas is compared with a pressure threshold value, and if the pressure value is not consistent with the pressure threshold value, the pressure value of the built-in gas is transmitted to the built-in gas volume conversion device.
Specifically, if the pressure value of the built-in gas matches the pressure threshold value, the gas volume at the pressure value of the built-in gas is measured.
S203, collecting working condition air quantity by the built-in gas volume conversion device, carrying out electronic temperature and pressure compensation according to the working condition air quantity, the temperature value of the built-in gas and the pressure value of the built-in gas, and converting the working condition air quantity into standard condition air quantity.
Specifically, the electronic temperature and pressure compensation needs to periodically acquire temperature values and pressure values of gas contained in the gas meter.
In this embodiment, through setting up temperature and pressure sensor, count tolerance under different temperature and pressure environment carries out electronic temperature-pressure compensation and converts the use tolerance under the standard condition into for count tolerance under different temperature and pressure environment carries out electronic temperature-pressure compensation and converts the use tolerance under the standard condition into, has reduced the error between operating mode tolerance and the standard condition tolerance.
In one embodiment, step S203, that is, the internal gas volume conversion device collects a working condition gas volume, performs electronic temperature and pressure compensation according to the working condition gas volume, the temperature value of the internal gas, and the pressure value of the internal gas, and converts the working condition gas volume into a standard condition gas volume, includes:
s2031, collecting working condition gas quantity by a collecting module, and transmitting the working condition gas quantity to a built-in gas temperature conversion module and a built-in gas temperature pressure conversion module;
s2032, the built-in gas temperature conversion module calculates a first indicating value error according to the working condition gas quantity and the temperature value of the built-in gas.
Specifically, the calculation formula of the first indicating error is as follows:
Figure BDA0002796495830000301
wherein E isaIndicating a first indicating error, Q1Indicating the volume of gas contained in the operating state, Q2Denotes the volume of the gas contained in the gas at the standard state, T2Denotes the thermodynamic temperature, T, in the standard state1Denotes the reference gas temperature, p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2Which represents the absolute pressure at the gas meter inlet in the standard state.
S2033, the built-in gas temperature and pressure conversion module calculates a second indicating value error according to the working condition gas quantity, the temperature value of the built-in gas and the pressure value of the built-in gas.
Specifically, the calculation formula of the second indicating error is as follows:
Figure BDA0002796495830000302
wherein E isbIndicating a first indicating error, p3Indicating standard atmospheric pressure.
Specifically, the first indicating value error is less than or equal to 0.6%, and the second error value is less than or equal to 0.6%.
S2034, the compensation module performs electronic temperature and pressure compensation according to the first indicating value error and the second indicating value error, and the working condition air quantity is converted into standard condition air quantity.
Specifically, correcting the volume of the built-in gas through the first indicating error and the second indicating error specifically includes: and supplementing the built-in gas according to the first indicating error and the second indicating error until the volume of the built-in gas reaches the standard gas volume, and stopping supplementing the gas.
In one embodiment, further comprising:
s204, the generating device takes the gas volume under the temperature value of the built-in gas and the gas volume under the pressure value of the built-in gas as standard gas quantities.
Specifically, when the temperature value of the built-in gas matches the temperature threshold value and the pressure value of the built-in gas matches the pressure threshold value, the volume of the built-in gas in a standard state is generated by combining the gas volume at the temperature value and the gas volume at the pressure value of the built-in gas obtained by measurement.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides an electronic type temperature and pressure compensation gas table which characterized in that includes: a shell, a counter and a watch movement, wherein,
the counter includes: the counter comprises a counter base, a controller, a Hall element and a counter cover;
the controller is used for acquiring a temperature value and a pressure value of the built-in gas, comparing the temperature value with a temperature threshold value, comparing the pressure value with a pressure threshold value, and performing electronic temperature and pressure compensation according to a comparison result to generate standard gas quantity; the standard gas amount represents the volume of the built-in gas in a standard state;
and the Hall element collects the pulse signal change under the standard condition air quantity, and counts according to the pulse signal change.
2. The electronic temperature and pressure compensated gas meter according to claim 1, wherein the controller comprises: the device comprises a temperature sensor, a pressure sensor and a built-in gas volume conversion device;
the temperature sensor is used for acquiring a temperature value of the built-in gas, comparing the temperature value of the built-in gas with a temperature threshold value, and transmitting the temperature value of the built-in gas to the built-in gas volume conversion device if the temperature value is not in accordance with the temperature threshold value;
the pressure sensor is used for acquiring a pressure value of the built-in gas, comparing the pressure value of the built-in gas with a pressure threshold value, and transmitting the pressure value of the built-in gas to the built-in gas volume conversion device if the pressure value is not consistent with the pressure threshold value;
the built-in gas volume conversion device is used for collecting working condition gas volume, carrying out electronic temperature and pressure compensation according to the working condition gas volume, the temperature value of the built-in gas and the pressure value of the built-in gas, and converting the working condition gas volume into standard condition gas volume; the working condition gas amount represents the volume of the built-in gas in the working state;
the built-in gas volume conversion device includes: the device comprises an acquisition module, a built-in gas temperature conversion module, a built-in gas temperature pressure conversion module and a compensation module;
the acquisition module is respectively connected with the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module and is used for acquiring working condition gas quantity and transmitting the working condition gas quantity to the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module;
the built-in gas temperature conversion module is used for calculating a first indicating value error according to the working condition gas quantity and the temperature value of the built-in gas;
the built-in gas temperature and pressure conversion module is used for calculating a second indicating value error according to the working condition gas quantity, the temperature value of the built-in gas and the pressure value of the built-in gas;
the compensation module is connected with the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module and is used for carrying out electronic temperature and pressure compensation according to the first indicating value error and the second indicating value error and converting the working condition gas quantity into standard condition gas quantity;
the calculation formula of the first indicating value error in the built-in gas temperature conversion module is as follows:
Figure FDA0002796495820000021
wherein E isaIndicating a first indicating error, Q1Indicating working condition gas quantity, Q2Indicating standard condition gas quantity, T2Denotes the thermodynamic temperature, T, in the standard state1Denotes the reference gas temperature, p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2The absolute pressure at the inlet of the gas meter in a standard state is represented;
the calculation formula of the second indicating value error in the built-in gas temperature and pressure conversion module is as follows:
Figure FDA0002796495820000031
wherein E isbIndicating a first indicating error, p3Indicating standard atmospheric pressure.
3. The electronic temperature and pressure compensated gas meter of claim 2, wherein the temperature sensor is further configured to:
and if the temperature value of the built-in gas is consistent with the temperature threshold value, measuring the gas volume under the temperature value of the built-in gas.
4. The electronic temperature and pressure compensated gas meter of claim 2, wherein the pressure sensor is further configured to:
if the pressure value of the built-in gas is consistent with the pressure threshold value, measuring the gas volume under the pressure value of the built-in gas;
the controller further includes: a generating device;
the generating device is connected with the temperature sensor and the pressure sensor and is used for taking the gas volume under the temperature value of the built-in gas and the gas volume under the pressure value of the built-in gas as standard gas quantities;
the watch movement, comprising: a cut-off valve, a setting device, an inflation solenoid valve and a fixed solenoid valve;
the setting device is connected with the controller and the cut-off valve and is used for setting an inflation stop pressure value according to the first error value and the second error value and controlling the internal pressure of the cut-off valve according to the inflation stop pressure value;
the inflation electromagnetic valve is connected with the controller and the cut-off valve and is used for controlling the cut-off valve to inflate the interior according to the first error value and the second error value;
the fixed electromagnetic valve is connected with the cut-off valve and is used for fixing the position of the cut-off valve;
the counter further includes: a driving wheel, a duplex driven wheel and a counter group;
the driving wheel is connected with the Hall element and the duplex driven wheel and is used for rotating according to the change of the pulse signal and pushing the duplex driven wheel to rotate;
the duplex driven wheel is connected with the counter group and used for pushing the counter group to rotate according to the rotation of the duplex driven wheel;
the driving wheel is also used for:
driving the duplex driven wheel to rotate for one circle when the duplex driven wheel rotates for one circle according to the pulse signal;
the twin driven wheel includes:
and when the duplex driven wheel rotates for one circle, the current counter block of the counter group is pushed to be converted with the next counter block.
5. A compensation method of an electronic temperature and pressure compensation gas meter is characterized by comprising the following steps:
the method comprises the following steps that a controller collects a temperature value and a pressure value of built-in gas, compares the temperature value with a temperature threshold value, compares the pressure value with a pressure threshold value, and performs electronic temperature and pressure compensation according to a comparison result to generate standard gas quantity;
and the Hall element collects the pulse signal change under the standard condition air quantity, and counts according to the pulse signal change.
6. The compensation method of the electronic temperature and pressure compensation gas meter according to claim 5, comprising:
the temperature sensor collects the temperature value of the built-in gas, compares the temperature value of the built-in gas with a temperature threshold value, and transmits the temperature value of the built-in gas to the built-in gas volume conversion device if the temperature value does not accord with the temperature threshold value;
the pressure sensor collects the pressure value of the built-in gas, compares the pressure value of the built-in gas with a pressure threshold value, and transmits the pressure value of the built-in gas to the built-in gas volume conversion device if the pressure value is not consistent with the pressure threshold value;
the method comprises the following steps that a built-in gas volume conversion device collects working condition gas volume, electronic temperature and pressure compensation is carried out according to the working condition gas volume, a temperature value of the built-in gas and a pressure value of the built-in gas, and the working condition gas volume is converted into standard condition gas volume;
the built-in gas volume conversion device collects working condition gas volume, carries out electronic temperature and pressure compensation according to the working condition gas volume, the temperature value of the built-in gas and the pressure value of the built-in gas, and converts the working condition gas volume into standard condition gas volume, and the method comprises the following steps:
the collecting module collects working condition gas quantity and transmits the working condition gas quantity to the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module;
the built-in gas temperature conversion module calculates a first indicating value error according to the working condition gas quantity and the temperature value of the built-in gas;
the built-in gas temperature and pressure conversion module calculates a second indicating value error according to the working condition gas quantity, the temperature value of the built-in gas and the pressure value of the built-in gas;
the compensation module performs electronic temperature and pressure compensation according to the first indicating value error and the second indicating value error, and converts the working condition air quantity into standard condition air quantity;
the calculation formula of the first indicating value error is as follows:
Figure FDA0002796495820000061
wherein E isaIndicating a first indicating error, Q1Indicating the volume of gas contained in the operating state, Q2Denotes the volume of the gas contained in the gas at the standard state, T2Denotes the thermodynamic temperature, T, in the standard state1Indicating the reference gas temperatureDegree, p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2The absolute pressure at the inlet of the gas meter in a standard state is represented;
the calculation formula of the second indicating value error is as follows:
Figure FDA0002796495820000062
wherein E isbIndicating a first indicating error, p3Represents standard atmospheric pressure;
the comparing the temperature value of the built-in gas with the temperature threshold value further comprises:
if the temperature value of the built-in gas is consistent with the temperature threshold value, measuring the gas volume under the temperature value of the built-in gas;
the comparing the pressure value of the built-in gas with a pressure threshold value further comprises:
if the pressure value of the built-in gas is consistent with the pressure threshold value, measuring the gas volume under the pressure value of the built-in gas;
further comprising:
the generating device takes the gas volume under the temperature value of the built-in gas and the gas volume under the pressure value of the built-in gas as standard gas quantities;
further comprising:
the setting device sets an inflation stopping pressure value according to the first error value and the second error value, and controls the internal pressure of the cut-off valve according to the inflation stopping pressure value;
the inflation solenoid valve controls the cut-off valve to carry out internal inflation according to the first error value and the second error value;
the fixed electromagnetic valve fixes the position of the cut-off valve.
7. The compensation method for the electronic temperature and pressure compensation gas meter according to claim 5, further comprising:
the driving wheel rotates according to the change of the pulse signal to push the duplex driven wheel to rotate;
the duplex driven wheel pushes the counter group to rotate according to the rotation of the duplex driven wheel;
the action wheel rotates according to the pulse signal changes, promotes pair from the driving wheel rotates, includes:
driving the duplex driven wheel to rotate for one circle when the duplex driven wheel rotates for one circle according to the pulse signal;
the rotation that the driven wheel of pair promotes the count group according to rotation of self includes:
and when the duplex driven wheel rotates for one circle, the current counter block of the counter group is pushed to be converted with the next counter block.
8. A controller of electronic temperature and pressure compensation is characterized by comprising: the device comprises a temperature sensor, a pressure sensor and a built-in gas volume conversion device;
the temperature sensor is used for acquiring a temperature value of the built-in gas, comparing the temperature value of the built-in gas with a temperature threshold value, and transmitting the temperature value of the built-in gas to the built-in gas volume conversion device if the temperature value is not in accordance with the temperature threshold value;
the pressure sensor is used for acquiring a pressure value of the built-in gas, comparing the pressure value of the built-in gas with a pressure threshold value, and transmitting the pressure value of the built-in gas to the built-in gas volume conversion device if the pressure value is not consistent with the pressure threshold value;
the built-in gas volume conversion device is used for collecting working condition gas volume, carrying out electronic temperature and pressure compensation according to the working condition gas volume, the temperature value of the built-in gas and the pressure value of the built-in gas, and converting the working condition gas volume into standard condition gas volume; the working condition gas amount represents the volume of the built-in gas in the working state;
the built-in gas volume conversion device includes: the device comprises an acquisition module, a built-in gas temperature conversion module, a built-in gas temperature pressure conversion module and a compensation module;
the acquisition module is respectively connected with the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module and is used for acquiring working condition gas quantity and transmitting the working condition gas quantity to the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module;
the built-in gas temperature conversion module is used for calculating a first indicating value error according to the working condition gas quantity and the temperature value of the built-in gas;
the built-in gas temperature and pressure conversion module is used for calculating a second indicating value error according to the working condition gas quantity, the temperature value of the built-in gas and the pressure value of the built-in gas;
the compensation module is connected with the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module and used for carrying out electronic temperature and pressure compensation according to the first indicating value error and the second indicating value error and converting the working condition gas quantity into standard condition gas quantity.
The calculation formula of the first indicating value error in the built-in gas temperature conversion module is as follows:
Figure FDA0002796495820000091
wherein E isaIndicating a first indicating error, Q1Indicating the volume of gas contained in the operating state, Q2Denotes the volume of the gas contained in the gas at the standard state, T2Denotes the thermodynamic temperature, T, in the standard state1Denotes the reference gas temperature, p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2The absolute pressure at the inlet of the gas meter in a standard state is represented;
the calculation formula of the second indicating value error in the built-in gas temperature and pressure conversion module is as follows:
Figure FDA0002796495820000092
wherein E isbIndicating a first indicating error, p3Represents standard atmospheric pressure;
the temperature sensor is further configured to:
if the temperature value of the built-in gas is consistent with the temperature threshold value, measuring the gas volume under the temperature value of the built-in gas;
the pressure sensor is further configured to:
if the pressure value of the built-in gas is consistent with the pressure threshold value, measuring the gas volume under the pressure value of the built-in gas;
further comprising: a generating device;
the generating device is connected with the temperature sensor and the pressure sensor and is used for taking the gas volume under the temperature value of the built-in gas and the gas volume under the pressure value of the built-in gas as standard gas quantities.
9. An electronic temperature and pressure compensation method is characterized by comprising the following steps:
the temperature sensor collects the temperature value of the built-in gas, compares the temperature value of the built-in gas with a temperature threshold value, and transmits the temperature value of the built-in gas to the built-in gas volume conversion device if the temperature value does not accord with the temperature threshold value;
the pressure sensor collects the pressure value of the built-in gas, compares the pressure value of the built-in gas with a pressure threshold value, and transmits the pressure value of the built-in gas to the built-in gas volume conversion device if the pressure value is not consistent with the pressure threshold value;
the built-in gas volume conversion device collects working condition gas volume, electronic temperature and pressure compensation is carried out according to the working condition gas volume, the temperature value of the built-in gas and the pressure value of the built-in gas, and the working condition gas volume is converted into standard condition gas volume.
10. The electronic temperature and pressure compensation method of claim 9, wherein the internal gas volume conversion device collects a working condition gas volume, performs electronic temperature and pressure compensation according to the working condition gas volume, the temperature value of the internal gas and the pressure value of the internal gas, and converts the working condition gas volume into a standard condition gas volume, and the method comprises:
the collecting module collects working condition gas quantity and transmits the working condition gas quantity to the built-in gas temperature conversion module and the built-in gas temperature pressure conversion module;
the built-in gas temperature conversion module calculates a first indicating value error according to the working condition gas quantity and the temperature value of the built-in gas;
the built-in gas temperature and pressure conversion module calculates a second indicating value error according to the working condition gas quantity, the temperature value of the built-in gas and the pressure value of the built-in gas;
the compensation module performs electronic temperature and pressure compensation according to the first indicating value error and the second indicating value error, and converts the working condition air quantity into standard condition air quantity;
the calculation formula of the first indicating value error is as follows:
Figure FDA0002796495820000111
wherein E isaIndicating a first indicating error, Q1Indicating the volume of gas contained in the operating state, Q2Denotes the volume of the gas contained in the gas at the standard state, T2Denotes the thermodynamic temperature, T, in the standard state1Denotes the reference gas temperature, p1Indicating the absolute pressure at the gas meter inlet in the operating state, p2The absolute pressure at the inlet of the gas meter in a standard state is represented;
the calculation formula of the second indicating value error in the built-in gas temperature and pressure conversion module is as follows:
Figure FDA0002796495820000112
wherein E isbIndicating a first indicating error, p3Indicating standard atmospheric pressure；
The comparing the temperature value of the built-in gas with the temperature threshold value further comprises:
if the temperature value of the built-in gas is consistent with the temperature threshold value, measuring the gas volume under the temperature value of the built-in gas;
the comparing the pressure value of the built-in gas with a pressure threshold value further comprises:
if the pressure value of the built-in gas is consistent with the pressure threshold value, measuring the gas volume under the pressure value of the built-in gas;
further comprising:
the generation device takes the gas volume at the temperature value of the built-in gas and the gas volume at the pressure value of the built-in gas as standard gas quantities.
CN202011334991.9A 2020-11-24 2020-11-24 Electronic temperature and pressure compensation gas meter and compensation method Pending CN112539791A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238825A (en) * 1978-10-02 1980-12-09 Dresser Industries, Inc. Equivalent standard volume correction systems for gas meters
WO2007037616A1 (en) * 2005-09-28 2007-04-05 Rnf, Inc. An apparatus for correcting gas-volume error caused by temperature-pressure difference for a volume-measuring type gas meter having an automatic meter reading function
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
CN102401675A (en) * 2010-09-09 2012-04-04 邹诚 Gas meter counting device with temperature and pressure compensation
CN202471159U (en) * 2012-03-14 2012-10-03 浙江蓝宝石仪表科技有限公司 Gas metering device
CN203083623U (en) * 2013-01-25 2013-07-24 上海真兰仪表科技股份有限公司 Low-power consumption temperature compensation membrane-type gas meter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238825A (en) * 1978-10-02 1980-12-09 Dresser Industries, Inc. Equivalent standard volume correction systems for gas meters
WO2007037616A1 (en) * 2005-09-28 2007-04-05 Rnf, Inc. An apparatus for correcting gas-volume error caused by temperature-pressure difference for a volume-measuring type gas meter having an automatic meter reading function
CN102401675A (en) * 2010-09-09 2012-04-04 邹诚 Gas meter counting device with temperature and pressure compensation
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
CN202471159U (en) * 2012-03-14 2012-10-03 浙江蓝宝石仪表科技有限公司 Gas metering device
CN203083623U (en) * 2013-01-25 2013-07-24 上海真兰仪表科技股份有限公司 Low-power consumption temperature compensation membrane-type gas meter

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