CN2314408Y

CN2314408Y - Intellectual integrated gas meter

Info

Publication number: CN2314408Y
Application number: CN 97250058
Authority: CN
Inventors: 周亚非; 黄汴荣; 郭刚
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-11-21
Filing date: 1997-11-21
Publication date: 1999-04-14
Anticipated expiration: 2007-11-21

Abstract

The utility model relates to an improvement on a gas meter. A control chamber is arranged above an air chamber; an air inlet section of the control chamber is provided with an electromagnetic valve; the outer wall of the air chamber is provided with a pressure sensor and a micrometeor sensor; the inner part of a counter is provided with a gage probe; a rotary frame in the air chamber is provided with a permanent magnet; an IC card insertion opening is arranged above a circuit board of the control chamber. The utility model has the advantages of reasonable structure, complete functions, safe performance, low cost, etc.

Description

The intelligent integral gas meter, flow meter

The utility model relates to a kind of improvement of gas meter, flow meter.

At present, employed gas meter, flow meters such as residential building and catering industry mostly adopt traditional mechanical type count table, show gas consumption by the character wheel counter accumulative total that is installed in the transparent sealing box, use artificial counting cost by gas meter.The IC-card gas meter, flow meter has appearred on the market in recent years, its structure is to be made up of separate gas meter, flow meter and electronic controller, on the gas meter, flow meter character wheel counter sensor is installed, the gas quantity signal that counter is added up is input to single-chip microcomputer, and the user can pay dues automatically by IC-card and stamp the card.Said structure exists the user and uses inconvenience, and combustion gas is leaked easily, and safety and sealing are poor, and power consumption is big, and problem such as combustion gas is easily stolen.

The utility model purpose provides a kind of intelligent integral gas meter, flow meter that signals such as the gas consumption of gas meter, flow meter, gas leakage is sent to single-chip microcomputer and can control automatically by sensor.

The utility model is made up of air chamber, table body, counter chamber, solenoid valve, control chamber, air inlet/outlet, sensor, the air chamber top is provided with control chamber, the circuit board of control chamber is provided with control circuit, air intake opening position in the control chamber is provided with solenoid valve, the air chamber outer wall is provided with pressure transducer, and microflow sensor, counter is provided with gage probe in the chamber, on the swing frame in the air chamber permanent magnet is installed, control chamber interior circuit board top is provided with the IC-card socket, and sensor is respectively by lead place in circuit plate circuit; Be provided with rechargeable battery in the control chamber, counter is provided with photoelectric cell in the chamber, integrative-structure is processed into the table body in control chamber, air chamber and counter chamber, pressure sensor circuit inserts single-chip microcomputer by amplifying circuit and voltage comparator circuit, gage probe circuit and microflow sensor circuit insert single-chip microcomputer, the output of single-chip microcomputer inserts luminous display circuit and driving circuit for electromagnetic valve respectively by code translator, control circuit also is provided with electric power management circuit, DC-DC transfer circuit, photoelectric cell floating charge circuit and IC-card socket; Be provided with flexible seal ring in the groove on the IC-card socket; Photoelectric cell inserts rechargeable battery by diode.

The utlity model has characteristics such as rational in infrastructure, that function is complete, performance is safe and reliable, automaticity is high, cost is low.

Accompanying drawing 1 is looked partial sectional view for the utility model master.

Accompanying drawing 2 is the utility model side-looking partial sectional view.

Accompanying drawing 3 is the utility model A-A cut-open view.

Accompanying drawing 4 is the utility model circuit theory diagrams.

Below in conjunction with accompanying drawing the utility model is further described, intelligent integral gas meter, flow meter of the present utility model can be according to purchasing gas information Control switch source of the gas on the IC-card; Detect gas flow, prevent to leak; Detect the table internal pressure, prevent superpressure destruction table tool, prevent from not have to press and cause stove to extinguish and cause leakage; According to the once maximum gas consumption of setting with gas time control switch source of the gas, prevent the various danger that may cause with gas for a long time.Structure of the present utility model is to realize like this, table body of the present utility model top is respectively arranged with air chamber, control chamber and counter chamber, air chamber 1 top is provided with control chamber 2, the circuit board 3 of control chamber is provided with control circuit, air intake opening position in the control chamber is provided with solenoid valve 4, there are several indicator lamp hole and IC-card sockets 11 by the transparent material sealing front portion of control chamber, be provided with gage probe 8 in the counter chamber 7, reach the counter of forming by some character wheels, on corresponding character wheel, permanent magnet is housed, the photoelectric cell 13 that is provided with in the counter chamber links to each other by the rechargeable battery 12 that is provided with in diode and the control chamber, leaded hole on the next door between counter chamber and the control chamber is filled by encapsulant after passing lead.Air chamber is tightly connected with table body movement, the gear train of movement stretches in the air chamber, coaxially on the gear train connected a swing frame 9 that permanent magnet 100 is housed, the air chamber outer wall is provided with pressure transducer 5 and microflow sensor 6, and the position of swing frame is near microflow sensor.Be to seal mutually between above-mentioned three cavitys, be provided with flexible seal ring 27 on the IC-card socket in the groove, after IC-card inserts jack, control chamber and extraneous sealing.The pressure sensor circuit 14 of control circuit of the present utility model inserts voltage comparator circuit 16 by amplifying circuit 15 with the electric signal that detects, insert single-chip microcomputer 17 again, gage probe circuit 18 and microflow sensor circuit 19 also insert single-chip microcomputer, the output of single-chip microcomputer inserts luminous display circuit 21 respectively by code translator 20, driving circuit for electromagnetic valve 22, electric power management circuit 23 and DC-DC transfer circuit 24, the utility model also is provided with photoelectric cell floating charge circuit 25 and IC-card socket 26, principle of work of the present utility model is such, when the user uses gas, insert and be loaded with the IC-card of purchasing gas information.Single-chip microcomputer reads in from IC-card opens solenoid valve after purchasing gas information, and in the gas process, the counter rotation makes the magnetic field of permanent magnet induce metrical pulse on gage probe and is sent to the interrupt line of single-chip microcomputer, and single-chip microcomputer will be purchased the tolerance decrement.When purchasing tolerance and exhaust, single-chip microcomputer cuts out solenoid valve, and the user need hold IC-card again and purchase gas.Timer on the single-chip microcomputer with in the gas process to metrical pulse regularly, when regularly greater than the maximum flow of regulation, be judged as big flow and leak, single-chip microcomputer cuts out solenoid valve and lights pilot lamp.Timer add up the interruption that the gage probe signal that once occurs continuously with air to open beginning back causes, when continuous integration value during greater than gas consumption stipulating, closes solenoid valve.When just using gas always or leakage is arranged, the signal of responding on the microflow sensor is sent to the interrupt line of single-chip microcomputer.Timer on the single-chip microcomputer is to this signal timing, is judged as micrometeor and leaks when regularly less than the minimum flow of regulation, and single-chip microcomputer cuts out solenoid valve and lights pilot lamp, and single-chip microcomputer is regularly sampled to pressure signal.Electric power management circuit is closed when not sampling, and reduces electrical source consumption.Single-chip microcomputer is opened electric power management circuit during sampling, and the DC/DC translation circuit provides stable voltage for pressure transducer.When pressure signal during greater than setting, single-chip microcomputer is judged superpressure, closes solenoid valve protection table tool, and lights pilot lamp.When pressure signal was lower than specified minimum value, single-chip microcomputer is judged did not have pressure in the table, close solenoid valve and light pilot lamp, leaks from kitchen range when preventing to come gas again.The timer of single-chip microcomputer is when once beginning with air to open, the timing of continuous appearance is interrupted adding up, when aggregate-value greater than the regulation once maximum service life the time, close solenoid valve, when battery produces electric current when rayed is arranged, rechargeable battery is to circuit supply when the power consumption of circulation boost charge battery, no rayed.Because the utility model adopts the intelligent integral structure, guaranteed the impermeability of gas meter, flow meter, adopt multiple security measures greatly to reduce the possibility that gas leakage works the mischief, when battery and rechargeable battery constitute the float charger electric energy of supplement consumed in time, whole electronic circuit is worked reliably and with long-term.

Claims

1, the intelligent integral gas meter, flow meter, be by air chamber, the table body, the counter chamber, solenoid valve, control chamber, air inlet/outlet, sensor is formed, it is characterized in that air chamber 1 top is provided with control chamber 2, the circuit board 3 of control chamber is provided with control circuit, air intake opening position in the control chamber is provided with solenoid valve 4, the air chamber outer wall is provided with pressure transducer 5, and microflow sensor 6, be provided with gage probe 8 in the counter chamber 7, on the swing frame 9 in the air chamber permanent magnet 10 is installed, control chamber interior circuit board top is provided with IC-card socket 11, and sensor is respectively by lead place in circuit plate circuit; Be provided with rechargeable battery 12 in the control chamber, be provided with photoelectric cell 13 in the counter chamber, control chamber, integrative-structure is processed into the table body in air chamber and counter chamber, pressure sensor circuit 14 inserts single-chip microcomputer 17 by amplifying circuit 15 and voltage comparator circuit 16, gage probe circuit 18 and microflow sensor circuit 19 insert single-chip microcomputer, the output of single-chip microcomputer inserts luminous display circuit 21 and driving circuit for electromagnetic valve 22 respectively by code translator 20, control circuit also is provided with electric power management circuit 23, DC-DC transfer circuit 24, photoelectric cell floating charge circuit 25 and IC-card socket 26.

2,, it is characterized in that being provided with in the groove on the IC-card socket flexible seal ring 27 according to the described intelligent integral gas meter, flow meter of claim 1.

3,, it is characterized in that photoelectric cell fills by battery by the diode access according to the described intelligent integral gas meter, flow meter of claim 1.