CN206772369U - A kind of small-bore CPU card pre-payment rotz flowmeter - Google Patents
A kind of small-bore CPU card pre-payment rotz flowmeter Download PDFInfo
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- CN206772369U CN206772369U CN201720558247.4U CN201720558247U CN206772369U CN 206772369 U CN206772369 U CN 206772369U CN 201720558247 U CN201720558247 U CN 201720558247U CN 206772369 U CN206772369 U CN 206772369U
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- rotz flowmeter
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Abstract
The utility model provides a kind of small-bore CPU card pre-payment rotz flowmeter,It includes the rotz flowmeter base table that inside nominal diameter is 20mm or 25mm,The control valve being connected with rotz flowmeter base table,The flow-compensated controller of CPU card being arranged on rotz flowmeter base table,The flow-compensated controller of CPU card includes shell and the circuit board being arranged in the shell,CPU card seat is provided with the housing,The circuit board includes the metering circuit based on microprocessor,Compensation circuit and electric power management circuit,The CPU card seat is connected with the metering circuit,And the pluggable setting IC-card of CPU card seat,Realize small-caliber flow meter pre paid functionality,And it is equipped with rotz flowmeter,It is higher than epithelium table in metering performance,With obvious accurate measurement advantage,Further perfect small-caliber flow meter is in civilian and industrial flow meter field use demand.
Description
Technical field
A kind of small-bore CPU card pre-payment rotz flowmeter is the utility model is related to, especially configuring inside nominal diameter is
The integral prepayment flowmeter of the flow-compensated controller of 20mm and 25mm rotz flowmeter base table, control valve, CPU card.
Background technology
At present, the inside nominal diameter using rotz flowmeter as base table pre-payment flowmeter is usually 50mm and 50mm with suitable for reading
Footpath, inside nominal diameter is that the base table of 20mm and 25mm small-bore serial pre-payment flowmeter is usually diaphragm gauge, but membrane type fires
Gas meter is a kind of machinery instrument, and the motive force of epithelium motion is the gas pressure difference by gas meter, flow meter import and export, can survey low pressure
The flow of scope, and the parts of this diaphragm gauge are more, complicated in mechanical structure, easy to aging and volume is big, measuring accuracy is low.
Compared with diaphragm gauge, gas roots flowmeter is a kind of volumetric flowmeter, and its measuring principle is periodically to be full of or discharge
The gas of one or several metric spaces, volumetric flow of gas is measured with this.Gas roots flowmeter measurement accuracy is high, reliably
Property is good, it is not necessary to which straight length, range are bigger.Either under the environment such as low temperature, normal temperature, high temperature, normal pressure, high pressure, vacuum, also
It is that, regardless of caliber, gas roots flowmeter can realize effective metering in face of single-phase or mixed equal fluid, in addition,
It also has outstanding performance in terms of the anti-high pressure of antidetonation.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of small-bore CPU card pre-payment rotz flowmeter.
The utility model provides a kind of small-bore CPU card pre-payment rotz flowmeter, it include inside nominal diameter be 20mm or
25mm rotz flowmeter base table, the control valve being connected with rotz flowmeter base table, is arranged on rotz flowmeter base table
The flow-compensated controller of CPU card, the flow-compensated controller of CPU card include shell and the circuit being arranged in the shell
Plate, on the housing provided with CPU card seat, the circuit board include the metering circuit based on microprocessor, compensation circuit and
Electric power management circuit, the CPU card seat are connected with the metering circuit, and the pluggable setting IC-card of the CPU card seat.
The compensation circuit includes temperature-compensation circuit and pressure compensation circuit, and it includes being connected with metering circuit respectively
Temperature sensor, pressure sensor.
The metering circuit includes flow sensor and control circuit.
The metering circuit is additionally provided with corresponding for obtaining the read module of remaining sum in IC-card, deducting IC-card according to gas consumption
The payment module of the amount of money, the control module according to remaining sum control control valve open and close in IC-card.
The metering module is additionally provided with communication module.
The shell is provided with display module.
The circuit board includes metering plate and power panel, and the metering circuit and compensation circuit form metering plate, electricity
Power management circuits form power panel, and both are electrically connected by winding displacement.
The control valve is low-pressure type repid cut-off valve.
The electric power management circuit includes battery component and inside and outside power supply switch circuit, the battery component and interior electricity
Source circuit connects.
The beneficial effects of the utility model：Small-caliber flow meter pre paid functionality is realized, and is equipped with rotz flowmeter,
It is higher than epithelium table in metering performance, there is obvious accurate measurement advantage, further perfect small-caliber flow meter is in civilian and work
The use demand of industry field of flow meters.
Brief description of the drawings
Fig. 1 is the front view of small-bore CPU card pre-payment rotz flowmeter.
Fig. 2 is the side view of small-bore CPU card pre-payment rotz flowmeter.
Fig. 3 is the rearview of small-bore CPU card pre-payment rotz flowmeter.
Fig. 4 is the schematic internal view 1 of small-bore CPU card pre-payment rotz flowmeter.
Fig. 5 is the schematic internal view 2 of small-bore CPU card pre-payment rotz flowmeter.
Fig. 6 is the theory diagram of small-bore CPU card pre-payment rotz flowmeter.
Fig. 7 is the front view of embodiment of the present utility model.
Fig. 8 is the side view of embodiment of the present utility model.
Fig. 9 is the rearview of embodiment of the present utility model.
In figure, 1. indicator lamps, 2. display modules, 3. shells, 4. buttons, 5. RS485 communication interfaces, 6. CPU cards
Seat, 7. Valve controlling interfaces, 8. flow sensor interfaces, 9. pressure sensor interfaces, 10. temperature sensor interfaces, 11.
Metering plate, 12. winding displacements, 13. battery components, 14. power panels, 15. flowmeters, 16. control valves, 17. microprocessors.
Embodiment
The utility model embodiment is described further below in conjunction with the accompanying drawings：
As illustrated, the utility model provides a kind of small-bore CPU card pre-payment rotz flowmeter, it includes inside nominal diameter
For 20mm or 25mm rotz flowmeter base table, the control valve being connected with rotz flowmeter base table, rotz flowmeter is arranged on
The flow-compensated controller of CPU card on base table, the flow-compensated controller of CPU card include shell and are arranged in the shell
Circuit board, on the housing provided with CPU card seat, the circuit board includes the metering circuit based on microprocessor, compensation electricity
Road and electric power management circuit, the CPU card seat are connected with the metering circuit, and the pluggable setting IC-card of the CPU card seat.
The microprocessor connects with flow sensor interface circuit, pressure sensor interface circuit, temperature sensor respectively
Mouth circuit, electric power management circuit, Valve controlling interface, CPU card seat, display driver circuit, memory, button and pulse frequency
Amplification driving circuit connects.
The compensation circuit includes temperature-compensation circuit and pressure compensation circuit, and it includes being connected with metering circuit respectively
Temperature sensor, pressure sensor.The metering circuit includes flow sensor and control circuit.
The flow sensor is arranged in the rotz flowmeter base table of 20mm or 25mm inside nominal diameters, and is passed through by lead
Flow sensor interface circuit is connected with microprocessor.
The pressure sensor is arranged in the rotz flowmeter base table of 20mm or 25mm inside nominal diameters, and is passed through by lead
Pressure sensor interface circuit is connected with microprocessor.
The temperature sensor is arranged in the rotz flowmeter base table of 20mm or 25mm inside nominal diameters, and is passed through by lead
Interface circuit of temperature sensor is connected with microprocessor.
Flow sensor interface 8 is connected with the interface circuit of flow sensor, pressure sensor interface 9 and pressure sensor
Interface circuit connection, temperature sensor interface 10 is connected with the interface circuit of temperature sensor, display module 2 is arranged on shell
On 3, to displays temperature, pressure, volumetric flow of gas and total amount, surplus, valve state, and IC-card charging information etc., CPU are read
Deck 6 is used for inserted IC card, button 4 is used for Control Items 3 i.e. display window switching, battery component 13 and is connected respectively to power supply
On plate 14, power panel 14 is connected on metering plate 11 by winding displacement 12, that is, with the metering plate using microprocessor as core
On, indicator lamp 1 is additionally provided with shell, for indicating operating status.
The metering circuit is additionally provided with corresponding for obtaining the read module of remaining sum in IC-card, deducting IC-card according to gas consumption
The payment module of the amount of money, the control module according to remaining sum control control valve open and close in IC-card.The metering module is also set
There is communication module, the communication module uses RS485 communication interfaces.
Microprocessor 17 is arranged on metering plate 11.When battery management circuit sufficient power, whole circuit starts work
Make, microprocessor 17 is receiving flow sensor interface 8, pressure sensor interface 9, connected at temperature sensor interface 10
Flow sensor, pressure sensor, temperature sensor signal when, and carry out calculation process, flow pressed into equation of gaseous state amendment
Into normal condition flow and temporally accumulate, and detection calculations are obtained temperature value, pressure value, flow value, accumulation value
Etc. being output on display module 3, the data of detection calculations and related data can also be handed over peripheral hardware by RS485 communication interfaces 5
Change.
Metering plate connection traffic measures base table（Or flow sensor）, pressure sensor, temperature sensor, IC-card seat, valve
Gate control interface and control valve.The metering plate is used for volume flow under the conditions of the pulse signal for receiving flowmeter and evaluation work
Amount, according to volume flow under the conditions of pressure, the pressure and temperature calculating benchmark of the gas of temperature sensor detection and it is accumulated by
The volume total amount of consumed gas, while read the charging information of IC-card and preservation, and by consumed tolerance（Can be volume or gold
Volume）Deducted in time from remaining sum, when remaining sum be 0 or overdraw amount be more than credit line when, control valve close stop supply so that
Reach the purpose of " using gas after first purchasing gas ", the metering plate is located in the flow-compensated controller shell of CPU card.
Way of payment can have following several one kind：A. using IC-card as medium is supplemented with money, IC-card interface 6 and microprocessor are passed through
Device 17 connects；B. RS485 communication modules 5 are passed through.When microprocessor 17 determines " overdraw " situation, pass through Valve controlling interface
16 control valves are closed；Conversely, when determining " not overdrawing " in the case of valve closing, pass through the control valve of Valve controlling interface 16
Door is opened.When additional power source, when additional power source is connected with the electric power management circuit in circuit board assemblies A, battery component 13 supplies
Electricity is automatically cut off to save battery electric quantity.
In embodiment, the utility model integrates control valve 16, rotz flowmeter base table 15, in rotz flowmeter base
Flow sensor interface 8, pressure sensor interface 9, temperature sensor interface 10, Valve controlling interface 7 are installed on the housing of table 15
It is connected with control valve 16.Rotz flowmeter base table 15 is connected with control valve 16 by flange.
The shell is provided with display module, and the display driver circuit electrically connects with display module.
The circuit board includes metering plate and power panel, and the metering circuit and compensation circuit form metering plate, electricity
Power management circuits form power panel, and both are electrically connected by winding displacement.
The control valve is low-pressure type repid cut-off valve, has the design of zero-pressure damage structure, straight using ball-valve structure, valve
Footpath is identical with pipe diameter.
The electric power management circuit includes battery component 13 and inside and outside power supply switch circuit, the battery component with it is interior
Power circuit connects.
Embodiment is not construed as to limitation of the present utility model, any to be based on spiritual improvements introduced of the present utility model,
All should be within the scope of protection of the utility model.
Claims (9)
1. a kind of small-bore CPU card pre-payment rotz flowmeter, it is characterised in that it is 20mm's or 25mm that it, which includes inside nominal diameter,
Rotz flowmeter base table, the control valve being connected with rotz flowmeter base table, the CPU card stream being arranged on rotz flowmeter base table
Amount compensation controller, the flow-compensated controller of CPU card includes shell and the circuit board being arranged in the shell, described
Shell is provided with CPU card seat, and the circuit board includes the metering circuit based on microprocessor, compensation circuit and power management electricity
Road, the CPU card seat are connected with the metering circuit, and the pluggable setting IC-card of the CPU card seat.
A kind of 2. small-bore CPU card pre-payment rotz flowmeter according to claim 1, it is characterised in that the compensation
Circuit includes temperature-compensation circuit and pressure compensation circuit, and it includes temperature sensor, the pressure being connected respectively with metering circuit
Force snesor.
A kind of 3. small-bore CPU card pre-payment rotz flowmeter according to claim 1 or 2, it is characterised in that the meter
Amount circuit includes flow sensor and control circuit.
A kind of 4. small-bore CPU card pre-payment rotz flowmeter according to claim 3, it is characterised in that the metering
Circuit be additionally provided with for obtain the read module of remaining sum in IC-card, according to gas consumption deduct IC-card correspond to the amount of money payment module,
According to the control module of remaining sum control control valve open and close in IC-card.
A kind of 5. small-bore CPU card pre-payment rotz flowmeter according to claim 4, it is characterised in that the metering
Circuit is additionally provided with communication module.
A kind of 6. small-bore CPU card pre-payment rotz flowmeter according to claim 1, it is characterised in that the shell
It is provided with display module.
A kind of 7. small-bore CPU card pre-payment rotz flowmeter according to claim 1, it is characterised in that the circuit
Plate includes metering plate and power panel, and the metering circuit and compensation circuit form metering plate, and electric power management circuit forms electricity
Source plate, and both are electrically connected by winding displacement.
A kind of 8. small-bore CPU card pre-payment rotz flowmeter according to claim 1, it is characterised in that the control
Valve is low-pressure type repid cut-off valve.
A kind of 9. small-bore CPU card pre-payment rotz flowmeter according to claim 1, it is characterised in that the power supply
Management circuit includes battery component and inside and outside power supply switch circuit, and the battery component is connected with internal power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720558247.4U CN206772369U (en) | 2017-05-19 | 2017-05-19 | A kind of small-bore CPU card pre-payment rotz flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720558247.4U CN206772369U (en) | 2017-05-19 | 2017-05-19 | A kind of small-bore CPU card pre-payment rotz flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206772369U true CN206772369U (en) | 2017-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720558247.4U Active CN206772369U (en) | 2017-05-19 | 2017-05-19 | A kind of small-bore CPU card pre-payment rotz flowmeter |
Country Status (1)
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| CN (1) | CN206772369U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759954A (en) * | 2018-05-28 | 2018-11-06 | 天信仪表集团有限公司 | A kind of double waist wheel gas flowmeters and installation method |
| CN115019447A (en) * | 2022-05-31 | 2022-09-06 | 浙江维度仪表有限公司 | CPU card flowmeter and metering method |
-
2017
- 2017-05-19 CN CN201720558247.4U patent/CN206772369U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759954A (en) * | 2018-05-28 | 2018-11-06 | 天信仪表集团有限公司 | A kind of double waist wheel gas flowmeters and installation method |
| CN108759954B (en) * | 2018-05-28 | 2024-03-22 | 天信仪表集团有限公司 | Double-waist-wheel gas flowmeter and mounting method thereof |
| CN115019447A (en) * | 2022-05-31 | 2022-09-06 | 浙江维度仪表有限公司 | CPU card flowmeter and metering method |
| CN115019447B (en) * | 2022-05-31 | 2023-08-08 | 浙江维度仪表有限公司 | CPU card flowmeter and metering method |
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