CN85202413U - Concentrated-indicating gas flowmeter - Google Patents
Concentrated-indicating gas flowmeter Download PDFInfo
- Publication number
- CN85202413U CN85202413U CN 85202413 CN85202413U CN85202413U CN 85202413 U CN85202413 U CN 85202413U CN 85202413 CN85202413 CN 85202413 CN 85202413 U CN85202413 U CN 85202413U CN 85202413 U CN85202413 U CN 85202413U
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- concentrated
- indication
- gas
- gas meter
- meter
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Abstract
The utility model discloses a concentrated-indicating gas flowmeter. The utility model belongs to an improved meter for measuring the gas flow capable of carrying out the decentralized-measurement and the concentrated-indication for a plurality of measuring points, which is in particular suitable for gas usage measurement for the user of the pipe gas in cities. The existing gas flowmeter completely adopts the mechanical drive and indication, the body and the indicating part of the meter can not be separated, and as a result, the concentrated-indication can not be realized (such as the existing domestic gas meter). The utility model adopts the sealed compartment and the inner main body mechanical structure of the existing domestic gas meter, increases an electromechanical conversion, concentrated-indicating and controlling device, holds the accuracy of the existing domestic gas meter, solves the existed problems, and realizes the concentrated-indication, having few investment.
Description
The utility model belongs to a kind of instrument of improved measurement gas flow, and it can concentrate indication to a plurality of measurement point decentralized measures.Being suitable for urban duct coal gas user usefulness gas especially measures.
Piped gas the user increase day by day in big and medium-sized cities, because unmanned in the user family greatly when tabling look-up, increasing of skyscraper coal gas user makes the work of tabling look-up increase many difficulties in addition.In view of these reasons, realize concentrating the requirement of indication urgent day by day.
The existing gas meter that is used for the piped gas user generally all has a transmission shaft that is used for the inside and outside transmission of pressurized capsule.Agent structure in the pressurized capsule plays a part gas guiding ， And by the mobile rotation that be converted to above-mentioned transmission shaft of its mechanical driving device with pressed gas.The rotation number of turns of this transmission shaft and the flow of main body have an accurate ratio.According to this ratio, the cogwheel gearing outside the pressurized capsule drives indicating device and indicates flow under the drive of above-mentioned transmission shaft.1.5m as the production of Beijing coal gas Watch Factory
3/ h gas meter is an example.This gas meter enters the gas cabin by the guiding pressed gas, thereby promote rubber air film motion drive mechanical hook-up motion in the gas cabin, the flow of metering is full of gas cabin number of times by the gas by instrument fully and accurately determines, and the variation of the change of flow and pressure does not influence metering in allowed band, so have higher measuring accuracy.But owing to adopt mechanical drive fully, the main body and the indicating section of instrument are inseparable, give and concentrate indication to bring very big difficulty.
The existing gas meter that has electromagnetic coupled with indicating device, though easily realize concentrating indication, but because the problem of aspects such as precision, cost, manufacture craft or volume is difficult to drop among the actual metered application of piped gas user usefulness gas.
The utility model provides a kind of improved gas meter, the body portion of indicating section and instrument from, realized decentralized measure, concentrate indication, and be suitable for actual use.
Technical essential of the present utility model is on the basis of existing gas meter, has increased electromechanical transformation apparatus, and integrated circuit is concentrated indication and control device, thus the body portion that makes indicating section and instrument from, realized concentrated indication.
Below, be described with reference to the accompanying drawings technology contents of the present utility model.
Figure one is the main body (pressurized capsule) (1) of existing gas meter and the outside drawing of the inside and outside transmission shaft (2) of pressurized capsule mounted thereto.
Figure two is a kind of transmission and electromechanical transformation apparatus synoptic diagram that combine with agent structure of the present utility model.
Figure three is functional-block diagrams of realizing concentrated indication of integrated circuit of the present utility model and control device.
The utility model is by the submeter that is installed in each user and concentrate indication control device two parts to form.With reference to figure one, each submeter agent structure still keeps the interior main body physical construction and the inside and outside transmission shaft (2) of pressurized capsule of pressurized capsule (1) of existing general user's gas meter.
With reference to figure two, transmission shaft (2) is through the transmission of gear (3), (4), (5), (6), (7), (8), drive electromechanical transformation apparatus (12), make it send an electric pulse corresponding to each gas flow of determining, electromechanical transformation apparatus (12) is made up of magnetic switch (11) and on-off circuit (13).The rotation of gear (8) drives the rotation that is fixed on the magnet steel (9) on the same axle with it, thereby the adhesive and the unlatching of control magnetron (10) produce electric pulse through on-off circuit.
Electromechanical transformation apparatus can also be made up of photoswitch circuit.Open a light hole at gear (8) near the position of outer edge, install luminotron and photosensitive tube respectively in the appropriate location that spool has same horizontal radial distance of gear (8) both sides and hole and gear (8).Like this, gear whenever turns around, and just gives excitation of photosensitive tube by light hole by luminotron, produces electric pulse through on-off circuit.
Electromechanical transformation apparatus can also be made up of automatically reset mechanical pressed switch and an on-off circuit.Figure two gears (8) are coaxial fixes a cam, and the cam that whenever circles orders about switch motion once, produces an electric pulse through on-off circuit.
With reference to figure three, each is shown electric pulse that on-off circuit produces and delivers to through transmission line and concentrate indication and control device (21), removes through discriminator circuit (14) separately and disturbs, after shaping amplifies, stores in the counting unit (15) that latchs of correspondence.For reducing cost, control device (21) adopts four decimal system decoding of cover display circuit, and is public as each submeter indication.When needing indication,, show the count value that latchs of each submeter automatically in turn through decoding, display circuit (20) by display control circuit (19) control.For guaranteeing the normal metering when AC network has a power failure, device has a cover dc power supply (17).In case have a power failure, power source conversion control device (18) is automatically connected direct supply, the operate as normal of assurance device.Behind the service restoration, device recovers AC power supply device (16) power supply automatically, cuts off direct supply (17).
The utility model and existing gas meter have relatively kept the precision of existing gas meter, and it is few to increase cost, can realize the concentrated indication of all gas meters of tens families, building, a building or several one hundred houses, and And is for further laying the first stone with computer housing-group lump metering. Owing to kept the agent structure of existing gas meter, the existing coal gas user's of having come into operation gas meter is not being pulled down pipeline, is not being affected in the situation of usefulness gas and can transform the utility model as.
The utility model can also be used for industry some to the gas flow dispersion measurement, central controlled occasion is carried out in concentrated indication. Electromechanical transformation apparatus of the present utility model and centralized measure, demonstration, control device can also be used for some metered amount is converted to the transformation of the measuring instrument of driving mechanical indicating device behind the mechanical circular motion, achieve and concentrate indication. Such as the concentrated indication of domestic meter, kilowatt-hour meter etc., make management convenient.
Claims (5)
1, a kind of concentrated indication gas meter, comprising the converted gas flow is the main body physical construction and the pressurized capsule [1] thereof of the mechanical rotation number of turns, the inside and outside transmission shaft [2] of pressurized capsule is characterized in that: have electromechanical transformation apparatus [12], integrated circuit is concentrated indication and control device [21].
2,, it is characterized in that said electromechanical transformation apparatus (12) is made up of magnetic switch (11) and on-off circuit (13) as claim 1 described gas meter.
3,, it is characterized in that said electromechanical transformation apparatus (12) is made up of automatically reset mechanical electrical switch and on-off circuit of optoelectronic switch or cam pressing as claim 1 described gas meter.
4,, it is characterized in that said concentrated indication and control device (21) adopt public same decoding display unit of each submeter (20) and display control circuit (19) as the described gas meter of claim 1-3.
5,, it is characterized in that said concentrated indication and control device (21) contain a standby power supply (17) and power source conversion control circuit (18) as the described gas meter of claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85202413 CN85202413U (en) | 1985-06-25 | 1985-06-25 | Concentrated-indicating gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85202413 CN85202413U (en) | 1985-06-25 | 1985-06-25 | Concentrated-indicating gas flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85202413U true CN85202413U (en) | 1986-04-02 |
Family
ID=4798225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85202413 Expired - Lifetime CN85202413U (en) | 1985-06-25 | 1985-06-25 | Concentrated-indicating gas flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85202413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568083A (en) * | 2015-01-22 | 2015-04-29 | 成都秦川科技发展有限公司 | Mechanical counter and method for measuring electro-mechanical transformation durability of gas meter by the same |
-
1985
- 1985-06-25 CN CN 85202413 patent/CN85202413U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568083A (en) * | 2015-01-22 | 2015-04-29 | 成都秦川科技发展有限公司 | Mechanical counter and method for measuring electro-mechanical transformation durability of gas meter by the same |
| CN104568083B (en) * | 2015-01-22 | 2018-04-20 | 成都秦川物联网科技股份有限公司 | Mechanical counter and the method using its measurement gas meter, flow meter data-collection durability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |