CN202158882U - Diaphragm gas meter with temperature and pressure compensation - Google Patents

Diaphragm gas meter with temperature and pressure compensation Download PDF

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Publication number
CN202158882U
CN202158882U CN2011200345653U CN201120034565U CN202158882U CN 202158882 U CN202158882 U CN 202158882U CN 2011200345653 U CN2011200345653 U CN 2011200345653U CN 201120034565 U CN201120034565 U CN 201120034565U CN 202158882 U CN202158882 U CN 202158882U
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CN
China
Prior art keywords
gas meter
module
meter
main control
control module
Prior art date
Application number
CN2011200345653U
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Chinese (zh)
Inventor
龚晓科
郭克祥
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银川天佳仪器仪表有限公司
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Priority to CN2011200345653U priority Critical patent/CN202158882U/en
Application granted granted Critical
Publication of CN202158882U publication Critical patent/CN202158882U/en

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Abstract

The utility model relates to a metering instrument, in particular to a diaphragm gas meter with temperature and pressure compensation, comprising a diaphragm gas meter as well as a temperature sensor, a master control module, a data acquisition module and a display module which are arranged in the diaphragm gas meter. The diaphragm gas meter is characterized in that a pressure sensor and a reed pipe sensor are also arranged in the diaphragm gas meter for acquiring reciprocating vibration of a diaphragm metering body and detecting the pressure of gas flowing through the gas meter. In the utility model, as temperature and pressure detection devices are additionally arranged in the gas meter, compensating calculation to detected flow rate information with temperature and pressure can be performed so as to truly reflect the detected momentary gas flow rate, improve the detection precision, prolong the service life, and reflect the fair dealing principle; and the digital technology is adopted to reduce running cost for meter reading, charging and the like and lead the functions of the diaphragm gas meter to be more complete.

Description

The diaphragm gas meter of band temperature pressure compensation

Technical field

The utility model relates to a kind of measurement instrument, particularly with the diaphragm gas meter of temperature pressure compensation.

Background technology

Gas meter, flow meter is a kind of metering device that uses combustion gas that is used to measure.Family expenses and commerce generally adopt the volume type diaphragm gas meter to measure with the metering of rock gas at present at present.The principle of work of diaphragm type gas meter, flow meter is formed four chambers by two diaphragms, when the gas that flows passes through gas meter, flow meter, owing to stopping of pipeline friction and mechanism; Can import and export at gas meter, flow meter and produce pressure differential; The diaphragm that promotes diaphragm gas meter through this pressure differential is in the metering indoor sport, and diaphragm whenever makes a round trip, and just discharges a certain amount of gas; Drive the coordination distribution of valve actuating mechanism simultaneously, make the motion of diaphragm can reciprocal continuously carrying out.The metering of diaphragm gas meter is through crank and rocker mechanism; The straight reciprocating motion of diaphragm is transformed into circular motion; Promote counter through movement transferring and rotate, the reciprocating number of times of diaphragm is noted, the finally conversion through driving-chain by counter; The gas volume or the energy value of metering are shown, reach the purpose of metering gas.

" a kind of ultrasonic wave gas meter " by name of on 08 11st, 2010 disclosed CN201548273U of Intellectual Property in China office with temperature compensation; It is to adopt the ultrasonic detection device that is arranged in the gas meter, flow meter to measure the flow of combustion gas; Variation through the temperature sensor detected temperatures; Then flow and temperature are transferred to the correction that main control module carries out flow and temperature, accurate flow are shown through digital display module.

But no matter be existing volume type gas meter, flow meter, still above-mentioned " a kind of ultrasonic wave gas meter with temperature compensation " all is volumes of combustion gas owing to what measure; Can know according to The Ideal-Gas Equation; The volume of gas is closely bound up with the temperature and pressure of gas, the gas of same quality, and its volume is different under different temperature and pressure; Therefore above-mentioned gas meter, flow meter has only been considered the influence of temperature convection amount; And do not consider the influence of pressure versus flow amount, and therefore the precision of metering can not reflect the flow that really is, transaction principle is unfair.

Summary of the invention

The purpose of the utility model is the deficiency that overcomes above-mentioned prior art, provides a kind of temperature and pressure that institute's instrumentation is decided gas flow to take all factors into consideration, and can accurately measure the diaphragm gas meter of the band temperature pressure compensation of gas flow.

For realizing above-mentioned purpose; The technical scheme of the utility model is: 1. diaphragm gas meter with temperature pressure compensation; Comprise diaphragm gas meter and the temperature sensor, main control module, data acquisition module, the display module that are installed in the table; It is characterized in that pressure transducer and tongue tube sensor also are installed in gas meter, flow meter, the tongue tube sensor links to each other with mechanical counter, is used for machinery metering the becoming electric signal with flow; Pressure transducer is used to detect the gaseous tension of gas meter, flow meter of flowing through, and pressure transducer links to each other with data acquisition module with the tongue tube sensor;

Data acquisition module is used to gather the signal that tongue tube sensor, pressure transducer and temperature sensor receive, and converts signal data to digital quantity and pass to main control module;

Display module is connected with main control module, is used to show the flow information and the warning message of gas meter, flow meter;

Main control module is used for data that the deal with data acquisition module sends and the flow that obtains combustion gas, controls the signal output that display module also shows the fire proof motor valve events simultaneously.

Above-mentioned main control module also is connected with the data memory module that is used for storing subscriber information and gas meter, flow meter information parameter.

Above-mentioned main control module also is connected with and is used for gas meter, flow meter and the outside bus communication module that carries out the information transmission.

Above-mentioned main control module also is connected with the IC-card module for reading and writing.

The sensor of said temperature and pressure is installed in the membrane type metered body.

Above-mentioned main control module also is connected with alarm module.

Above-mentioned main control module also is connected with fire proof motor valve driver module, and fire proof motor valve driver module connects the fire proof motor valve.

Above-mentioned main control module also is connected with the voltage detection module that is used to detect power module voltage.

Above-mentioned main control module also is connected with the enquiry module that is used to inquire about the gas meter, flow meter state.。

The utility model is the improvement of on existing diaphragm gas meter basis, carrying out; Have following characteristics: 1, owing in gas meter, flow meter, added temperature, pressure-detecting device; Be used for temperature, the pressure of the gas that flows through in the gas meter, flow meter are detected; Simultaneously the data transmission that detects is compensated calculating to main control module, will consider that through display module the information such as accurate flow of temperature, pressure error show; 2, with the reciprocating mechanical detection WT-MSR of existing detection diaphragm; Become Digital Detecting; Overcome on the one hand degradation problem under the measuring accuracy that the mechanical detection wearing and tearing are caused, can the flow information and temperature, the pressure that detect have been compensated calculating on the other hand, but actual response detection instantaneous gas flow; Improve precision and the serviceable life detected, also can embody the principle of utmost fair dealing simultaneously; 3, owing to adopted digital technology, reduced check meter, operating cost such as charge, make the function of this table more complete simultaneously.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model;

The theory diagram that accompanying drawing 2 detects for the utility model.

Embodiment

As shown in Figure 1, gas meter, flow meter comprises the table body that is tightly connected and is formed by upper shell 2 and lower house 10, and the air intake opening 3 and the gas outlet 1 of gas meter, flow meter are connected on the pipeline that needs metering.After combustion gas gets into gas meter, flow meter, promote the gear train motion, rotate, the rotation of mechanical counter is become the pulse signal of flow through tongue tube sensor 7 thereby drive mechanical counter through metered body.Fire proof motor valve 4 is arranged on the air intake opening official road in the gas meter, flow meter cavity, and temperature sensor 5 is installed in fire proof motor valve outer wall respectively and shows in the body with pressure transducer 6.The detected electric signal of tongue tube sensor, temperature sensor and pressure transducer is transferred to data acquisition module; Through data acquisition module signal is transferred to main control module; After handling through main control module again; Obtained taking all factors into consideration the accurate gas flow behind temperature, the pressure, shown signals such as flows and fire proof motor valve events through display module 8.

Combustion gas feeds in the gas meter, flow meter, and the standard volume ratio is calculated by following formula (1) under record gas meter, flow meter data and the reference temperature:

V 2=V 1/T 1*T 2 (1)

In the formula:

V 1The volume of---be under the normal temperature;

V 2The volume of---be under the reference temperature;

T 1---be normal temperature;

T 2---be reference temperature

If the volume of gas meter, flow meter record is V, through the V that calculates 2Error rate ρ, by formula calculate (2):

ρ=(V-V 2)/V 2*100% (2)

As shown in Figure 2; The detected gaseous-pressure signal of temperature signal, pressure transducer in the traffic pulse of tongue tube sensor, the detected table of temperature sensor all is transferred to data acquisition module; Obtain accurate gas flow after handling through main control module then, through main control module gas meter, flow meter is taken place unusually simultaneously, or power down or storage tolerance are when not enough; Send buzzer warning sound, submit to the user to note; Main control module also connects the IC-card module for reading and writing; The IC-card module for reading and writing is used for IC-card and gas meter, flow meter carries out the information transmission; The user can pay the combustion gas expense in advance through gas company; Gas company writes the information of paying the fees to IC-card then, and the user realizes the break-make of combustion gas through IC-card socket 9 and gas meter, flow meter message exchange, thereby realizes the pre paid functionality of gas meter, flow meter.

Be connected with the valve driving module on the main control module; The valve driving module connects valve; When gas meter, flow meter detected the unusual or voltage module under-voltage of gas flow, main control module was just controlled the fire proof motor valve through fire proof motor valve driver module and is closed breather line, stops air feed; After gas flow and supply voltage recovery normally, main control module is just controlled the fire proof motor valve and is opened breather line, recovers air feed.

Claims (9)

1. diaphragm gas meter with temperature pressure compensation; Comprise diaphragm gas meter and the temperature sensor, main control module, data acquisition module, display module and the mechanical counter that are installed in the table; It is characterized in that in gas meter, flow meter, also being equipped with pressure transducer and tongue tube sensor; The tongue tube sensor links to each other with mechanical counter; Be used for the machinery of flow metering becoming electric signal, pressure transducer is used to detect the gaseous tension of gas meter, flow meter of flowing through, and pressure transducer links to each other with data acquisition module with the tongue tube sensor;
Data acquisition module is used to gather the signal that tongue tube sensor, pressure transducer and temperature sensor receive, and converts signal data to digital quantity and pass to main control module;
Display module is connected with main control module, is used to show the flow information and the warning message of gas meter, flow meter;
Main control module is used for data that the deal with data acquisition module sends and the flow that obtains combustion gas, controls the signal output that display module also shows the fire proof motor valve events simultaneously.
2. the diaphragm gas meter of band temperature pressure compensation according to claim 1 is characterized in that above-mentioned main control module also is connected with the data memory module that is used for storing subscriber information and gas meter, flow meter information parameter.
3. the diaphragm gas meter of band temperature pressure compensation according to claim 2 is characterized in that above-mentioned main control module also is connected with and is used for gas meter, flow meter and carries out the bus communication module that information is transmitted with outside.
4. the diaphragm gas meter of band temperature pressure compensation according to claim 3 is characterized in that above-mentioned main control module also is connected with the IC-card module for reading and writing.
5. the diaphragm gas meter of band temperature pressure compensation according to claim 4 is characterized in that the sensor of said temperature and pressure is installed in the membrane type metered body.
6. the diaphragm gas meter of band temperature pressure compensation according to claim 5 is characterized in that above-mentioned main control module also is connected with alarm module.
7. the diaphragm gas meter of band temperature pressure compensation according to claim 6 is characterized in that above-mentioned main control module also is connected with fire proof motor valve driver module, and fire proof motor valve driver module connects the fire proof motor valve.
8. the diaphragm gas meter of band temperature pressure compensation according to claim 7 is characterized in that above-mentioned main control module also is connected with the voltage detection module that is used to detect power module voltage.
9. the diaphragm gas meter of band temperature pressure compensation according to claim 8 is characterized in that above-mentioned main control module also is connected with the enquiry module that is used to inquire about the gas meter, flow meter state.
CN2011200345653U 2011-02-10 2011-02-10 Diaphragm gas meter with temperature and pressure compensation CN202158882U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200345653U CN202158882U (en) 2011-02-10 2011-02-10 Diaphragm gas meter with temperature and pressure compensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200345653U CN202158882U (en) 2011-02-10 2011-02-10 Diaphragm gas meter with temperature and pressure compensation

Publications (1)

Publication Number Publication Date
CN202158882U true CN202158882U (en) 2012-03-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200345653U CN202158882U (en) 2011-02-10 2011-02-10 Diaphragm gas meter with temperature and pressure compensation

Country Status (1)

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CN (1) CN202158882U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104949725A (en) * 2015-06-25 2015-09-30 苏州市英富美欣科技有限公司 Gas flow collection device based on temperature and pressure intensity compensation
CN106323398A (en) * 2016-08-12 2017-01-11 姚俊 Household gas measuring meter with high measuring accuracy
CN108072414A (en) * 2018-01-08 2018-05-25 金卡智能集团股份有限公司 A kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter
CN108332905A (en) * 2018-02-02 2018-07-27 马鞍山市亿格仪表有限公司 A kind of bluetooth pressure gauge that can be generated electricity

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104949725A (en) * 2015-06-25 2015-09-30 苏州市英富美欣科技有限公司 Gas flow collection device based on temperature and pressure intensity compensation
CN106323398A (en) * 2016-08-12 2017-01-11 姚俊 Household gas measuring meter with high measuring accuracy
CN108072414A (en) * 2018-01-08 2018-05-25 金卡智能集团股份有限公司 A kind of electronic measurement temperature and pressure compensation method of gas meter, flow meter
CN108332905A (en) * 2018-02-02 2018-07-27 马鞍山市亿格仪表有限公司 A kind of bluetooth pressure gauge that can be generated electricity

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: YINCHUAN TIANJIA ENERGY TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: YINCHUAN TIANJIA INSTRUMENT AND METER CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: Desheng Industrial Park Yinchuan city the Ningxia Hui Autonomous Region Qingfeng road 750200

Patentee after: Yinchuan Tianjia Energy Technology Co., Ltd.

Address before: Desheng Industrial Park Yinchuan city the Ningxia Hui Autonomous Region Qingfeng road 750200

Patentee before: Yinchuan Tianjia Instrument Co., Ltd.

CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 750001 16 Fengqing West Road, Desheng Industrial Park, Yinchuan, the Ningxia Hui Autonomous Region.

Patentee after: Ningxia kaytian gas development Limited by Share Ltd

Address before: 750200 Qingsheng Road South, Desheng Industrial Park, Yinchuan, the Ningxia Hui Autonomous Region

Patentee before: Yinchuan Tianjia Energy Technology Co., Ltd.