CN101539451A - On-line detecting and indicating device of fuel gas meter - Google Patents
On-line detecting and indicating device of fuel gas meter Download PDFInfo
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- CN101539451A CN101539451A CN200910019800A CN200910019800A CN101539451A CN 101539451 A CN101539451 A CN 101539451A CN 200910019800 A CN200910019800 A CN 200910019800A CN 200910019800 A CN200910019800 A CN 200910019800A CN 101539451 A CN101539451 A CN 101539451A
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- optoelectronic switch
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- emitting diode
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Abstract
The invention relates to an on-line detecting and indicating device of a fuel gas meter, which comprises a transmission shaft and a transmission gear, wherein the transmission shaft extends into a counting cavity, and the transmission gear is arranged on the transmission shaft. The on-line detecting and indicating device is characterized in that a photoelectric switch, a microprocessor, a light emitting diode and an electrical source which are electrically connected, and a resistor for limiting the current of the photoelectric switch and the light emitting diode are also arranged in the counting cavity, the electrical source provides electricity for the photoelectric switch, a signal outputted by the photoelectric switch is transmitted to the microprocessor to be processed, and the light emitting diode is controlled by the microprocessor to be turned on and turned off. A plurality of through holes are uniformly arranged on a diametral plane which has the same radius as the transmission gear. A transmitting terminator and a receiving terminator of the photoelectric switch are respectively and relatively positioned at both sides of the through hole. The diametral plane of the rotating transmission gear and the through hole play a role by turns to ensure that the photoelectric switch generates a corresponding output signal. People observe the on-off of the diode to judge the functional mode of the fuel gas meter and whether a facility at the back end leaks. The invention has simple structure, low cost, reliable working operation, and rapid and direct detection.
Description
Technical field
The present invention relates to a kind of parts or annex of flow measurement, refer in particular to the sensitivity of a kind of online detection gas meter, flow meter and survey the online detection indicating device of the gas meter, flow meter whether the gas meter, flow meter backend infrastructure leak gas.
Background technology
Diaphragm gas meter is to be used for the instrument of metering gas consumption, and it is by the watchcase of sealing and be assemblied in movement in the watchcase, form with the counter three parts of movement seal isolation.Wherein counter is to rotate the metering that realizes gas flow by the character wheel that transfer gear train drives counter, the character code reaction of directly reading on the counter character wheel be exactly user's gas consumption.For example, in CN2447744Y China utility model patent instructions of Granted publication on September 12 calendar year 2001 disclosed " a kind of low discharge gas meter, flow meter ", the gas meter, flow meter of said structure all disclosed in disclosed " a kind of diaphragm gas meter " in the CN201050997Y China utility model patent instructions of Granted publication on April 23rd, 2008.But, the gas meter, flow meter of said structure, at the flow of combustion gas hour, it is longer that gear rotates the time that needs in a week, and it is very slow that the code changeable on the counter character wheel becomes.At this moment, the testing staff detects whether operate as normal of gas meter, flow meter if desired, then needs the code changeable of the observation counter of long period just can be determined.In addition, after the gas meter, flow meter backend infrastructure leaked air a little, user and testing staff can not find immediately, spill combustion gas often and reach finite concentration, people just can discover combustion gas by stimulus to the sense organ and reveal, and give like this and use the personnel of combustion gas to cause great potential safety hazard.
Summary of the invention
When overcoming in the prior art the less or table backend infrastructure gas leakage of gas meter, flow meter flow, the testing staff will detect the deficiency of affirmation for a long time, the invention provides a kind of online detection indicating device of gas meter, flow meter, this online detection indicating device is not only simple in structure, cost is low, and reliable operation, detect rapid, directly perceived.
The technical solution adopted for the present invention to solve the technical problems is: a kind of online detection indicating device of gas meter, flow meter, comprise that transmission shaft and in the counting chamber of stretching into seal isolation is assemblied in the transmission gear on this transmission shaft output terminal, it is characterized in that: in the counting chamber of described seal isolation, also comprise electrical connection one by emission terminal and the molecular optoelectronic switch of receiving end, one microprocessor, one light emitting diode, one power supply and to the resistance of optoelectronic switch and light emitting diode current limliting, this optoelectronic switch is powered by power supply, its output signal is transported to microprocessor processes, described light emitting diode is lighted by microprocessor control and is extinguished, on the sagittal plane of the same radius of described transmission gear, evenly have several through holes, the emission terminal of described optoelectronic switch, receive the corresponding respectively both sides that are positioned at through hole of terminal, the sagittal plane of the transmission gear that rotates and the through hole alternating action on it make optoelectronic switch produce a corresponding output signal.
Electrical connection in the counting chamber of described seal isolation one by emission terminal and the molecular optoelectronic switch of receiving end, one microprocessor, one light emitting diode, one power supply and to the resistance of optoelectronic switch and light emitting diode current limliting, its annexation be optoelectronic switch the emission terminal by the first current-limiting resistance R1 and power supply just, negative pole links to each other, the collector that optoelectronic switch receives terminal is connected with positive source by the second current-limiting resistance R2, the emitter that receives terminal is as signal output part, the positive pole of light emitting diode is connected with positive source by the 3rd current-limiting resistance R3, is electrically connected with microprocessor between the emitter of the negative pole of light emitting diode and optoelectronic switch reception terminal.
Described optoelectronic switch is a slot type optoelectronic switch.
Described power supply for the optoelectronic switch power supply is a dc battery, voltage 6V.
The microprocessor of described processing optoelectronic switch output signal, its model are 80C2051.
The present invention increases by a detection. electronics on the basis of original gas meter, flow meter structure, the emission terminal of the optoelectronic switch of this device, reception terminal correspondence are positioned at the through hole both sides on the transmission gear, under the sagittal plane and the through hole alternating action on it of the transmission gear that rotates, optoelectronic switch produces a corresponding output signal, and microprocessor is controlled the lighting and extinguish of light emitting diode of electronic installation by receiving this output signal.Duty and sensitivity that the testing staff can be intuitively judges gas meter, flow meter by bright, situation of going out of observing diode and frequency bright, that go out.When gas meter, flow meter backend infrastructure Close All, also can judge whether backend infrastructure exists leakage phenomenon by bright, the situation of going out of observing diode.The present invention compared with prior art has simple in structurely, and cost is low, and reliable working operation detects rapidly, advantage intuitively.
Description of drawings
The present invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a kind of structural front view of the present invention.
Fig. 2 is the cut-open view of Fig. 1 along A-A.
Fig. 3 is a kind of circuit theory diagrams of the present invention.
1. counting chamber, 2. transmission shaft, 3. transmission gears among the figure, 4. the link gear gear train is 5. counted transfer gear train, 6. character wheel, 7. through hole, 8. optoelectronic switch, 801. emission terminals, 802. the reception terminal, 803.U type cell body, 9. wiring board, 10. microprocessor, 11. light emitting diodes, 121. resistance, 122. resistance, 123. resistance, 13. power supplys.
Embodiment
As shown in Figure 1, a kind of online detection indicating device of gas meter, flow meter comprises that the counting chamber 1 interior transmission shaft 2 and that stretches into seal isolation is assemblied in the transmission gear 3 on these transmission shaft 2 output terminals.As shown in Figure 2, transmission shaft 2 is driven and is rotated by the link gear gear train 4 of core section, transmission gear 3 rotates with transmission shaft 2, then the character wheel 6 by counting transfer gear train 5 drive counters rotates the metering that realizes gas flow, and what the character code that directly reads on the counter character wheel 6 was reacted is exactly user's gas consumption
In Fig. 1, Fig. 2, on the sagittal plane of the same radius of transmission gear 2, evenly have 30 through holes 7.
In Fig. 1, in the counting chamber 1 of seal isolation, also assemble an optoelectronic switch 8.
As shown in Figure 2, optoelectronic switch 8 is a U type slot type optoelectronic switch, is made up of an emission terminal 801, a reception terminal 802 and a U type cell body 803, wherein launches terminal 801, receives the symmetrical respectively inboard that is installed in U type cell body of terminal 802.
In Fig. 1, a wiring board 9 and a power supply (not drawing among the figure) are installed also in the counting chamber 1 of seal isolation.Microprocessor 10 on power supply, optoelectronic switch 8 and the wiring board 9, a light emitting diode 11 and the resistance 121,122,123 of optoelectronic switch 8 and light emitting diode 11 current limlitings is electrically connected.Wherein optoelectronic switch 8, microprocessor 10, light emitting diode 11, power supply and current-limiting resistance 121,122,123 are installed in the counting chamber 1 of seal isolation, and be isolated fully with inflammable gas, improved security.
Fig. 3 provides a kind of electronic circuitry of the present invention.In Fig. 3, the emission terminal 801 of optoelectronic switch 8 links to each other with the positive and negative electrode of power supply 13 by first current-limiting resistance 121, the collector of the reception terminal 802 of optoelectronic switch 8 is connected with power supply 13 positive poles by second current-limiting resistance 122, the positive pole of light emitting diode 11 is connected with power supply 13 positive poles by the 3rd current-limiting resistance 123, be connected with microprocessor 10 at the emitter that receives terminal 802 and the negative pole of light emitting diode 11, link to each other and accept its control.Wherein power supply is that four joint dc batteries are formed, and voltage is 6V, and it is optoelectronic switch 8 power supplies; The emitter that receives terminal 802 is as signal output part, and output signal send microprocessor 10 to handle, then lighting and extinguish by microprocessor 10 control light emitting diodes 11.The model of microprocessor 10 is 80C2051.
Its course of work is as follows: the emission terminal 801 energized 13 emission light of optoelectronic switch 8, when the through hole 7 on transmission gear 3 sagittal planes that rotate when light penetrates direction, the reception terminal 802 of optoelectronic switch 8 is subjected to irradiate light, receive the collector and the emitter conducting of terminal 802, emitter 802 produces signal and gives microprocessor 10, this moment, microprocessor 10 output low levels were given the negative pole of light emitting diode 11, and light emitting diode 11 is lighted.When the sagittal plane of transmission gear 3 obstructs the light the ejaculation direction, the collector of the reception terminal 802 of optoelectronic switch and not conducting of emitter, the output of emitter no signal, microprocessor 10 output high level are given the negative pole of light emitting diode 11, and light emitting diode 11 extinguishes.
Traditional gas meter, flow meter rotates a circle according to transmission gear, and the gas that will flow through 1.2L calculates, if the gas flow that passes through is 6L/h, counter is observed increases 1L, then needs 10 minutes time.And have 30 through holes on the sagittal plane of the present invention with transmission gear is example, transmission gear rotates a weekly assembly and causes the optoelectronic switch break-make 60 times, twice glittering time interval of light emitting diode is: 3600 seconds * 1.2L/ (6L * 60)=12 seconds, user and testing staff can with the naked eye observe easily.
When the gas meter, flow meter operate as normal, transmission gear 3 constantly rotates, cause optoelectronic switch 8 on-off constantly, microprocessor 10 is also constantly controlled lighting of light emitting diode 11 simultaneously and is extinguished, testing staff's this moment Direct observation with the naked eye, thus judge whether operate as normal of gas meter, flow meter at an easy rate.When closing the backend infrastructure of gas meter, flow meter, if there is gas leak phenomenon, this moment, the transmission gear 3 of gas meter, flow meter also can rotate, and light emitting diode 11 also can periodically be lighted and extinguish at this moment, judges thus whether backend infrastructure exists gas leakage.
Claims (5)
1, a kind of online detection indicating device of gas meter, flow meter, comprise that transmission shaft and in the counting chamber of stretching into seal isolation is assemblied in the transmission gear on this transmission shaft output terminal, it is characterized in that: in the counting chamber of described seal isolation, also comprise electrical connection one by emission terminal and the molecular optoelectronic switch of receiving end, one microprocessor, one light emitting diode, one power supply and to the resistance of optoelectronic switch and light emitting diode current limliting, this optoelectronic switch is powered by power supply, its output signal is transported to microprocessor processes, described light emitting diode is lighted by microprocessor control and is extinguished, on the sagittal plane of the same radius of described transmission gear, evenly have several through holes, the emission terminal of described optoelectronic switch, receive the corresponding respectively both sides that are positioned at through hole of terminal, the sagittal plane of the transmission gear that rotates and the through hole alternating action on it make optoelectronic switch produce a corresponding output signal.
2, the online detection indicating device of a kind of gas meter, flow meter according to claim 1, it is characterized in that: the electrical connection in the counting chamber of described seal isolation one by emission terminal and the molecular optoelectronic switch of receiving end, one microprocessor, one light emitting diode, one power supply and to the resistance of optoelectronic switch and light emitting diode current limliting, its annexation be optoelectronic switch the emission terminal by the first current-limiting resistance R1 and power supply just, negative pole links to each other, the collector that optoelectronic switch receives terminal is connected with positive source by the second current-limiting resistance R2, the emitter that receives terminal is as signal output part, the positive pole of light emitting diode is connected with positive source by the 3rd current-limiting resistance R3, is electrically connected with microprocessor between the emitter of the negative pole of light emitting diode and optoelectronic switch reception terminal.
3, the online detection indicating device of a kind of gas meter, flow meter according to claim 1 and 2 is characterized in that: described optoelectronic switch is a slot type optoelectronic switch.
4, the online detection indicating device of a kind of gas meter, flow meter according to claim 1 and 2 is characterized in that: described power supply for the optoelectronic switch power supply is a dc battery, voltage 6V.
5, the online detection indicating device of a kind of gas meter, flow meter according to claim 1 and 2, it is characterized in that: the microprocessor of described processing optoelectronic switch output signal, its model are 80C2051.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910019800A CN101539451A (en) | 2009-04-01 | 2009-04-01 | On-line detecting and indicating device of fuel gas meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910019800A CN101539451A (en) | 2009-04-01 | 2009-04-01 | On-line detecting and indicating device of fuel gas meter |
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| CN101539451A true CN101539451A (en) | 2009-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910019800A Pending CN101539451A (en) | 2009-04-01 | 2009-04-01 | On-line detecting and indicating device of fuel gas meter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393232A (en) * | 2011-11-30 | 2012-03-28 | 浙江荣鑫燃气表有限公司 | Security type wireless intelligent gas meter |
| CN102636323A (en) * | 2012-05-02 | 2012-08-15 | 中国计量学院 | Negative pressure method detection device for tightness of diaphragm gas meter valve body |
| CN107807674A (en) * | 2017-11-29 | 2018-03-16 | 中国医学科学院生物医学工程研究所 | A kind of high-precision 3 D intelligent translation stage with negative-feedback |
| CN108180958A (en) * | 2018-03-01 | 2018-06-19 | 北京优耐燃气仪表有限公司 | A kind of gas meter counting mechanism and gas meter, flow meter |
| CN108427138A (en) * | 2018-04-20 | 2018-08-21 | 甘肃铁道综合工程勘察院有限公司 | Disconnecting switch applied to seismic detector triggering end |
| CN109443470A (en) * | 2019-01-15 | 2019-03-08 | 廊坊新奥燃气设备有限公司 | A kind of Electronic Temperature Offset gas meter, flow meter and its automatic Verification method suitable for automatic Verification |
| CN111939433A (en) * | 2020-08-19 | 2020-11-17 | 深圳海医达高分子科技有限公司 | Medical catheter device |
-
2009
- 2009-04-01 CN CN200910019800A patent/CN101539451A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393232A (en) * | 2011-11-30 | 2012-03-28 | 浙江荣鑫燃气表有限公司 | Security type wireless intelligent gas meter |
| CN102636323A (en) * | 2012-05-02 | 2012-08-15 | 中国计量学院 | Negative pressure method detection device for tightness of diaphragm gas meter valve body |
| CN102636323B (en) * | 2012-05-02 | 2014-09-24 | 中国计量学院 | Negative pressure method detection device for tightness of diaphragm gas meter valve body |
| CN107807674A (en) * | 2017-11-29 | 2018-03-16 | 中国医学科学院生物医学工程研究所 | A kind of high-precision 3 D intelligent translation stage with negative-feedback |
| CN107807674B (en) * | 2017-11-29 | 2024-05-17 | 中国医学科学院生物医学工程研究所 | High-precision three-dimensional intelligent translation table with negative feedback |
| CN108180958A (en) * | 2018-03-01 | 2018-06-19 | 北京优耐燃气仪表有限公司 | A kind of gas meter counting mechanism and gas meter, flow meter |
| CN108180958B (en) * | 2018-03-01 | 2023-12-01 | 北京优耐燃气仪表有限公司 | Gas meter counting mechanism and gas meter |
| CN108427138A (en) * | 2018-04-20 | 2018-08-21 | 甘肃铁道综合工程勘察院有限公司 | Disconnecting switch applied to seismic detector triggering end |
| CN109443470A (en) * | 2019-01-15 | 2019-03-08 | 廊坊新奥燃气设备有限公司 | A kind of Electronic Temperature Offset gas meter, flow meter and its automatic Verification method suitable for automatic Verification |
| CN111939433A (en) * | 2020-08-19 | 2020-11-17 | 深圳海医达高分子科技有限公司 | Medical catheter device |
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Application publication date: 20090923 |