CN209841108U - Integrated intelligent anti-theft gas flowmeter - Google Patents
Integrated intelligent anti-theft gas flowmeter Download PDFInfo
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- CN209841108U CN209841108U CN201920904454.XU CN201920904454U CN209841108U CN 209841108 U CN209841108 U CN 209841108U CN 201920904454 U CN201920904454 U CN 201920904454U CN 209841108 U CN209841108 U CN 209841108U
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Abstract
An integrated intelligent anti-theft gas flowmeter. The flow meter comprises a flow meter base meter, a mechanical counter and a prepayment compensation controller, wherein a magnetic rotatable part driven by a medium and a high-frequency sensor module are arranged in the flow meter base meter; the prepayment compensation control instrument receives the flow signal, the pulse signal and the high-frequency flow signal and respectively checks the flow signal, the pulse signal and the high-frequency flow signal. The problem of because of by the behavior of stealing gas of user for example utilize strong magnetic field or violence to destroy the flow signal module of arranging in the outside, counter arouse that the measurement signal became invalid is solved to reach the purpose that prevents the user and steal the gas, reduce the measurement for gas enterprise and lose the poor, improve economic benefits and reduce the trouble hidden danger and make technical guarantee.
Description
Technical Field
The utility model relates to a gas transmission and distribution system fluid metering instrument field, in particular to gas flowmeter of integral type theftproof gas.
Background
With the rapid development of the urban gas industry, natural gas has become a commodity for trade transactions of gas supply and demand parties. Meanwhile, each gas supplier faces to the great economic loss brought by the enterprises due to the theft of the gas. At present, the gas flowmeter of a mechanical counter or an electronic pulse signal sensor is generally adopted in the field of natural gas pipe network transportation and metering to realize trade metering. According to investigation, the most common current theft method is generally to artificially destroy the flow signal acquisition part of the gas metering equipment, so that the metering is less or not counted. If a mechanical counter mode or an electronic pulse signal sensor is simply adopted to transmit flow signals, the flow signals cannot be traced to achieve the metering purpose if a fault occurs or the flow signals are artificially damaged; the other is that a signal sensor module is added outside the mechanical counter to acquire flow signals so as to achieve the purpose of double display, but the signal sensor module is also easily damaged by lawbreakers due to being installed outside, so that huge economic loss and potential safety hazards are brought to gas supply enterprises.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that gas flowmeter safety can't guarantee among the background art, the utility model provides an intelligence theftproof gas flowmeter.
The utility model provides a technical scheme that its technical problem adopted is: an integrated intelligent anti-theft gas flowmeter comprises a gas flowmeter base meter, a direct-reading mechanical counter and a prepayment compensation controller, wherein a magnetic rotatable part driven by a medium is arranged in the gas flowmeter base meter, the magnetic rotatable part is connected with the direct-reading mechanical counter in a magnetic coupling mode, the direct-reading mechanical counter is connected with the prepayment compensation controller, the direct-reading mechanical counter comprises a signal generator, a direct-reading module and a pulse signal module, the signal generator acquires a flow signal through the magnetic rotatable part, and the pulse signal module generates a pulse signal through magnetic steel induction of the magnetic rotatable part signal generator; the gas flowmeter base meter is provided with a high-frequency sensor module which can acquire a high-frequency flow signal; and the prepayment compensation controller receives and calibrates the high-frequency flow signal and the pulse signal, or calibrates the pulse signal and the flow signal of the direct-reading module.
The rotatable part is covered with a magnetic shielding protective sleeve.
The gas flowmeter base surface is provided with a magnetic shielding shell.
The prepayment compensation controller comprises a first shell and a second shell, wherein a CPU card socket, a display screen, a circuit board and a GPRS module are arranged in the first shell, and a power supply, a communication module and a wiring board are arranged in the second shell.
The power supply socket is arranged on the wiring board, and the power supply is connected with the power supply socket through a flexible connector.
The wiring board is provided with a communication socket, and the communication module is connected with the communication socket through a flexible connector.
One end of the first shell is hinged with the second shell, the other end of the first shell is connected with the second shell in an openable mode, magnetic steel is arranged on the inner wall of the second shell, and the circuit board is correspondingly provided with a magnetic sensor.
The openable ends of the first shell and the second shell are fixedly connected through screws, and fixed lead seals are arranged at the screw fixing positions.
The second casing is sunken to form the holding chamber, the holding chamber periphery is equipped with the sealing strip, first casing correspondence is equipped with the seal groove, the sealing strip inlays constitute sealed cooperation in the seal groove.
The direct-reading mechanical counter further comprises a counter direct-reading module, a 485 communication module and a character wheel are arranged in the counter direct-reading module, a transmission gear in the signal generator is connected with the character wheel of the counter direct-reading module, a flow signal is transmitted to the character wheel to be displayed, and the flow signal is transmitted to the prepayment compensation controller through 485 communication.
The utility model has the advantages that: the utility model discloses a three kinds of signal transmission mode carry out data backup and comparison: the prepayment compensation controller receives the two paths of signals and diagnoses and checks to diagnose whether the numerical value of the mechanical counter is normal; the two modules are arranged in the counter to form an integrated structure; the problem of because of being stolen the gas behavior by the user and utilizing strong magnetic field or violence to destroy flow signal module, the counter of arranging in the outside and arouse the measurement signal inefficacy is solved to reach the purpose that prevents the user from stealing the gas, obtain the high frequency flow signal of the same way through the high frequency sensor module in addition, right the pulse signal that the pulse signal module acquireed carry out the check-up, avoid the measurement problem that direct-reading formula mechanical counter trouble produced, for the gas enterprise reduce measure defeated poor, improve economic benefits and reduce the trouble hidden danger and do the technical guarantee.
Drawings
Fig. 1 is a schematic structural diagram 1 of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram 2 of an embodiment of the present invention.
Fig. 3 is a structural diagram of a prepaid compensation controller according to an embodiment of the present invention.
Wherein, 1, a gas flowmeter base table; 2. a direct-reading mechanical counter; 3. a counter direct-reading module; 4. a signal generator; 5. a pulse signal module; 6. a waterproof joint; 7. a flexible wire; 8. a first housing; 9. a second housing; 10. a GPRS antenna; 11. a CPU card socket; 12. a prepayment compensation control instrument; 13. a connecting wire; 14. a magnetic shielding protective sleeve; 15. a magnetic shield case; 16. a display screen; 17. a GPRS module; 18. magnetic steel; 19. a socket; 20. a wiring board; 21. a lithium battery; 22. a horn base; 23. a circuit board; 24. a high-frequency sensor module; 25. and an external lead.
Detailed Description
The embodiments of the present invention will be further explained with reference to the accompanying drawings:
in the embodiment of the utility model provides an in, as shown in fig. 1, fig. 2 and fig. 3, the utility model provides an intelligent theftproof gas flowmeter of integral type, it includes: the gas flowmeter comprises a gas flowmeter base meter 1, a direct-reading mechanical counter 2 and a prepayment compensation controller 12, wherein a magnetic rotatable part is arranged in the gas flowmeter base meter, the magnetic rotatable part is fixedly arranged in the flowmeter base meter through a bearing, the rotating speed of the magnetic rotatable part is in direct proportion to the flow rate of a metered fluid theoretically, a magnetic shielding protective sleeve 14 or a magnetic shielding shell 15 is arranged on an external cover of the magnetic rotatable part, an internal rotating part magnetic shielding is generally adopted for a waist wheel flowmeter, and an integral outer shell body magnetic shielding is adopted for a turbine flowmeter, so that the interference of an external strong magnetic field to an internal transmission part is prevented.
The magnetic transmission component is connected with the direct-reading mechanical counter 2 in a magnetic coupling mode, and a counter direct-reading module 3 with 485 communication, a signal generator 4 and a pulse signal module 5 are arranged inside the direct-reading mechanical counter 2.
The rotation angular speed of the magnetic coupling of the direct-reading mechanical counter 2, which is in direct proportion to the flow, is transmitted to the signal generator 4 after being decelerated at a certain transmission ratio by a plurality of transmission gears.
The transmission gear of the signal generator 4 is connected with the character wheel of the direct reading module 3 of the counter with 485 communication, transmits the flow signal to the character wheel for displaying, and transmits the 485 communication signal to the prepayment compensation controller 12 by adopting the flexible wire 7 through the waterproof joint 6 with the lead sealing hole and the connecting wire 13.
The lead sealing hole of the waterproof joint 6 can be provided with a metering lead seal to prevent manual disassembly, and the connecting wire 13 is provided with a metal hose for protection to prevent manual damage to the connecting wire.
The pulse signal module 5 is internally provided with a magnetic sensor which has a plurality of magnetic field strengths of which the sensitivity is high, the power consumption is low, and the precision is high, and the magnetic field strengths are more than or equal to 5 GS. The circular magnetic steel rotating through the detection signal generator 4 outputs a square wave pulse signal with the frequency proportional to the rotating speed, and the square wave pulse signal is transmitted to the prepayment compensation controller 12 through the flexible wire 7 through the waterproof joint 6 and the connecting wire 13.
The lithium battery 21 arranged in the inner cavity of the shell supplies power to the wiring board through the socket 19, and is connected with the circuit board 23 of the first shell 8 through the horn socket 22 and the flat cable of the wiring board 20, and transmits power and transmits digital signals in an interactive mode.
The flow signal of the counter direct-reading module 3 and the flow signal and the magnetic interference detection signal output by the signal module 5 are introduced to a wiring board 20 of the prepaid compensation controller 12 through an external interface of the second housing 9 through a connecting wire 13, and the flow signal is transmitted to the circuit board 23 through a horn seat 22 on the wiring board 20.
The signal in the connecting wire 13 is a signal with a certain amplitude and a certain level, and once someone destroys the connecting wire 13, the control chip of the circuit board 23 can detect the abnormity of the signal and record and alarm.
The circuit board 23 calculate, compare, record two kinds of flow data, and the display screen 16 on show with GPRS module 17 transmit to remote data acquisition control center through GPRS antenna 10, if for the comparison abnormal or magnetic interference detection signal abnormal also can go on show report to the police or transmit to remote data acquisition control center through GPRS, supply the user to look over.
In addition, the gas flowmeter base meter 1 is provided with a high-frequency sensor module 24, a high-frequency flow signal is obtained by detecting the rotating speed of a rotatable part in the gas flowmeter base meter, the high-frequency flow signal is led into a wiring board 20 of a prepayment compensation controller 12 through an external interface of a second shell 9 through an external lead 25, the flow signal is transmitted to the circuit board 23 through the ox horn seat 22, the circuit board 23 continuously or discontinuously verifies the received high-frequency flow signal and the pulse signal obtained by the pulse signal module 5, and the metering problem caused by the fault of the direct-reading mechanical counter is avoided.
A magnetic steel 18 is arranged on the lower right side wall of the second shell 9, a magnetic sensor is arranged at a corresponding position on the circuit board 23 opposite to the magnetic steel 18, and once the first shell 8 is opened, the magnetic steel is recorded and an alarm signal for abnormal opening of the cover is generated.
The CPU card socket 11 arranged on the first shell 8 can adopt an external CPU card to carry out recharging prepayment, the residual recharging amount can be displayed on the display panel 16, and once the using amount exceeds a set range, the circuit board 23 outputs a valve closing signal through the wiring board 20 and an external interface, so that the condition of non-payment overdraft is prevented.
The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications that utilize the inventive concepts are intended to be included within the scope of the appended claims.
Claims (10)
1. The utility model provides an integral type intelligence theftproof gas flowmeter which characterized in that: the prepayment gas meter comprises a gas flow meter base meter (1), a direct-reading mechanical counter (2) and a prepayment compensation controller (12), wherein a magnetic rotatable part and a high-frequency sensor module (24) driven by a medium are arranged in the gas flow meter base meter (1), the magnetic rotatable part is connected with the direct-reading mechanical counter (2) in a magnetic coupling mode, the direct-reading mechanical counter (2) is connected with the prepayment compensation controller (12), the direct-reading mechanical counter comprises a signal generator (4), a pulse signal module (5) and a direct-reading module,
the signal generator (4) acquires a flow signal through the magnetically rotatable part,
the pulse signal module (5) and the magnetic steel of the signal generator are induced to generate a pulse signal,
the high-frequency sensor module (24) acquires a high-frequency flow signal;
and the prepayment compensation controller receives the flow signal, the pulse signal and the high-frequency flow signal, corrects the high-frequency flow signal and the pulse signal, and corrects the pulse signal and the flow signal.
2. The integrated intelligent anti-theft gas flowmeter of claim 1, wherein: the rotatable part outer housing is provided with a magnetic shielding shield (14).
3. The integrated intelligent anti-theft gas flowmeter of claim 1, wherein: the gas flowmeter base surface is provided with a magnetic shielding shell (15).
4. The integrated intelligent anti-theft gas flowmeter of claim 1, wherein: the prepayment compensation controller (12) comprises a first shell (8) and a second shell (9), wherein a CPU card inserting seat (11), a display screen (16), a circuit board (23) and a GPRS module (17) are arranged in the first shell (8), and a power supply, a communication module and a wiring board are arranged in the second shell (9).
5. The integrated intelligent anti-theft gas flowmeter of claim 4, wherein: and a power supply socket is arranged on the wiring board (20), and the power supply is connected with the power supply socket through a flexible connector.
6. The integrated intelligent anti-theft gas flowmeter of claim 4, wherein: the wiring board (20) is provided with a communication socket, and the communication module is connected with the communication socket through a flexible connector.
7. The integrated intelligent anti-theft gas flowmeter of claim 4, wherein: one end of the first shell (8) is hinged with the second shell (9), the other end of the first shell is connected with the second shell (9) in an openable mode, magnetic steel (18) is arranged on the inner wall of the second shell (9), and a magnetic sensor is correspondingly arranged on the circuit board (23).
8. The integrated intelligent anti-theft gas flowmeter of claim 5, wherein: the openable ends of the first shell (8) and the second shell (9) are fixedly connected through screws, and fixed lead seals are arranged at the screw fixing positions.
9. The integrated intelligent anti-theft gas flowmeter of claim 4, wherein: the second shell (9) is internally sunken to form a containing cavity, a sealing strip is arranged on the periphery of the containing cavity, a sealing groove is correspondingly formed in the first shell (8), and the sealing strip is embedded in the sealing groove to form sealing fit.
10. The integrated intelligent anti-theft gas flowmeter of claim 1, wherein: the direct-reading mechanical counter (2) further comprises a counter direct-reading module (3), a 485 communication module and a character wheel are arranged in the counter direct-reading module (3), a transmission gear in the signal generator (4) is connected with the character wheel of the counter direct-reading module (3), a flow signal is transmitted to the character wheel to be displayed, and the flow signal is transmitted to the prepayment compensation controller (12) through 485 communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920904454.XU CN209841108U (en) | 2019-06-17 | 2019-06-17 | Integrated intelligent anti-theft gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920904454.XU CN209841108U (en) | 2019-06-17 | 2019-06-17 | Integrated intelligent anti-theft gas flowmeter |
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| CN209841108U true CN209841108U (en) | 2019-12-24 |
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| CN201920904454.XU Active CN209841108U (en) | 2019-06-17 | 2019-06-17 | Integrated intelligent anti-theft gas flowmeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777865A (en) * | 2021-12-13 | 2022-07-22 | 浙江裕顺仪表有限公司 | Roots flow metering device for industrial gas prepayment |
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2019
- 2019-06-17 CN CN201920904454.XU patent/CN209841108U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777865A (en) * | 2021-12-13 | 2022-07-22 | 浙江裕顺仪表有限公司 | Roots flow metering device for industrial gas prepayment |
| CN114777865B (en) * | 2021-12-13 | 2023-01-31 | 浙江裕顺仪表有限公司 | Roots flow metering device for industrial gas prepayment |
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