CN108562342A - A kind of novel rotz flowmeter - Google Patents
A kind of novel rotz flowmeter Download PDFInfo
- Publication number
- CN108562342A CN108562342A CN201810444921.5A CN201810444921A CN108562342A CN 108562342 A CN108562342 A CN 108562342A CN 201810444921 A CN201810444921 A CN 201810444921A CN 108562342 A CN108562342 A CN 108562342A
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- Prior art keywords
- processor
- novel
- rotz flowmeter
- flowmeter according
- volume
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
- G01F15/063—Indicating or recording devices for remote indication using electrical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/065—Indicating or recording devices with transmission devices, e.g. mechanical
- G01F15/066—Indicating or recording devices with transmission devices, e.g. mechanical involving magnetic transmission devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/07—Integration to give total flow, e.g. using mechanically-operated integrating mechanism
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of novel rotz flowmeters, including cavity, cavity is equipped with air inlet and gas outlet, waist wheel assembly is equipped in the cavity, the waist wheel assembly connects deceleration mechanism by magnetic coupling connector, and the deceleration mechanism is connected with mechanical counter, further includes having volume amending unit, the volume amending unit includes processor, and the processor is connected with touch screen and wireless transport module；The rotz flowmeter on the basis of mechanical counting-type flowmeter by increasing a volume amending unit for carrying touch screen and wireless transport module, not only realize long-range data transmission and control function, also cancel setting button key, it is configured function by touch structure so that product overall tightness higher.
Description
Technical field
The present invention relates to rotz flowmeter technical field, more particularly to a kind of dual display and with debugging functions waist in turn
Gauge.
Background technology
Gas waist wheel (Roots) flowmeter is a kind of positive displacement instrument measuring gas medium flow in closed conduct.Its with
Its precision is high, range ability is wide, it is small, light-weight, convenient to install and maintain, use the spies such as reliable and durable service life
Point is widely used in the Trade Measures of city gas, especially suitable for use such as organ, school, enterprises and institutions, hotel, restaurants
The Trade Measures of gas rich and influential family.It can also be used for the occasions such as main metering, gas distribution station, the main supply station of various raw material of industry gas.
Existing gas roots flowmeter is divided into following three kinds：A：Single Mechanical type, B：Single electron type, C：Electromechanical mixed type,
Wherein electromechanical mixed type is widely used due to its multiple functional advantage.But the gas roots amount of electromechanical mixed type
Meter is not complete in function, and is all to use touch-tone Setting pattern, poor sealing.
Invention content
In order to solve the problems, such as existing rotz flowmeter insufficiency, poor sealing, it is rich that the present invention provides a kind of function
Rich, good airproof performance rotz flowmeter.
To achieve the goals above, technical solution provided by the invention is：A kind of novel rotz flowmeter, including cavity,
Cavity is equipped with air inlet and gas outlet, and waist wheel assembly is equipped in the cavity, and the waist wheel assembly is connected by magnetic coupling connector
Deceleration mechanism is met, the deceleration mechanism is connected with mechanical counter, further includes having volume amending unit, the volume amending unit
Including processor, the processor is connected with touch screen and wireless transport module.
In the above scheme, the air inlet is equipped with temperature sensor, and the temperature sensor is connected to the processor.
Further, the gas outlet is equipped with pressure sensor, and the pressure sensor is connected to the processor.
In addition, being equipped with pulse transducer by the magnetic coupling connector, the pulse transducer is connected to the processor.
Further include DC power supply as a kind of preferred technical solution, the DC power supply is the processor and touch
Screen power supply.
In the above scheme, it is preferred that the wireless transport module is NB Internet of Things transmission modules.
Preferably, the processor is connected with the memory for storing data.
As further preferred technical solution, further include be useful for data download data-interface, the data-interface with
The processor connection.
In the above scheme, it is preferred that the processor is connected with audible-visual annunciator.
The advantageous effect of the present invention compared with the existing technology is：The rotz flowmeter passes through in mechanical counting-type flowmeter
On the basis of increase by one carry touch screen and wireless transport module volume amending unit, not only realize long-range data transmission
And control function, also cancel setting button key, function is configured by touch structure so that product overall tightness is more
It is high.
Description of the drawings
Fig. 1 is the structure chart of the present invention；
Fig. 2 is the fundamental diagram of this rotz flowmeter；
Fig. 3 is the circuit theory frame diagram of the present invention；
Fig. 4 is the processor circuit schematic diagram of the present invention；
Fig. 5 is the power module circuitry figure of the present invention；
Fig. 6 is the wireless transport module circuit diagram of the present invention；
Fig. 7 is the display module schematic diagram of the present invention；
Fig. 8 is the IC card module principle figure of the present invention；
Fig. 9 is the SIM card module principle figure of the present invention；
Figure 10 is the data interface module schematic diagram of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not constitute limitation of the invention.In addition, disclosed below
The each embodiment of the present invention in involved technical characteristic can be combined with each other as long as they do not conflict with each other.
As shown in Figure 1, a kind of novel rotz flowmeter, including cavity 1, cavity are equipped with air inlet 11 and gas outlet 12,
Waist wheel assembly 2 is equipped in cavity 11, the operation principle of the component is as shown in Fig. 2, the 8 font waists rotated by two opposite directions
The volume metering room that wheel and cavity are constituted, realizes the accurate measurement to gas.It, can be in table chamber after gas enters instrument air inlet
Interior formation pressure difference, to make waist wheel rotate, in each swing circle, the volume of gas is to be moved out of by four times in measuring room
The sum of fixed volume, waist wheel speed is directly proportional to the gas flowed through, and the rotation of waist wheel passes through a specially designed speed reducer
Structure and magnetic coupling hookup, which export, gives external auxiliary meter reading unit.
With continued reference to Fig. 1, it is connected with the namely magnetic coupling connector of magnetic coupler 3 in the side of waist wheel assembly 2, magnetic coupling connects
3 other end of device connects retarder 4, and retarder 4 is made of multiple pitch wheels, and output end and the machinery of retarder 4 are counted
Number device 5 connects, and such rotation of waist wheel assembly 2 drives magnetic coupler 3 to rotate, and to drive retarder 4 to rotate, and then drives machinery
Counter 5 rotates, from mechanical counter 5 can gas flow, but the flow is inaccurate, can only be used as a reference
Value prevents electronic console failure or long-term power-off.
The flow for calculating gas in order to be more accurate, the novel rotz flowmeter are additionally provided with a volume amending unit
6, which includes a microprocessor, can select microcontroller, specific model that can be selected as needed, example
Such as 51 series, STM8 series as shown in Figure 4 and Figure 5, are used as in the present embodiment with the microcontroller of MSP430 series
One embodiment, but protection scope of the present invention is not limited to this.
Go out to set there are one temperature sensor in the air inlet 11 of cavity, temperature sensor is used for detecting the temperature of under test gas
Degree, the output signal of temperature sensor and the I/O mouths of microcontroller connect, in addition, it is additionally provided with a pressure sensor in air inlet,
Pressure sensor is used for detecting intake pressure, likewise, the output end of pressure sensor is also connect with the I/O of microcontroller mouths, it is single
After piece machine learns other pressure and temperatures to be measured by the signal of two sensors, according to the calculated flowmeter of equation of gaseous state
Volume under working condition, specific gas equation are as follows：
In formula：V0Volume (Nm under standard state3)；
Volume (m under V-working condition3)；
Absolute pressure at P=Pa+Pg-flow meter pressure test point is set by pressure sensor detection or machine default value
(kPa)；
Pa-locality atmospheric pressure (kPa)；
The meter pressure (kPa) of Pg-gauge pressure detecting point；
P0Standard atmospheric pressure (101.325kPa)；
T0Absolute temperature under standard state (293.15K can be 273.15K according to value is required)；
T-is detected absolute temperature (273.15+t) K of medium；
The temperature of t-survey medium sets (DEG C) by temperature sensor detection or machine default value；
Zn-is the gas compressibility factor under standard state；
Zg-be in working condition under gas compressibility factor；
Gas Compression Factor, for the compressibility factor of natural gas, by China National Petroleum Corporation (CNPC) SY/T 6143-
Related formula calculates (note in 2004 standards or AGA reports：When being examined and determine with bell jar and negative pressure device, Zn=Zg, i.e. Fz=1 are taken).
In addition, being equipped with pulse transducer on the side of magnetic couple connector 3, the I/O mouths of pulse transducer and microcontroller connect,
By the rotary speed of pulse transducer detection magnetic idol connector, to which signal is given to microcontroller, microcontroller passes through the signal
It can show that volume identical with mechanical counter, microcontroller can calculate the volume under working condition according to above-mentioned formula
V carries out automatic compensation and compressibility factor amendment.
As shown in Figure 3 and Figure 7, in order to realize the effect of intelligent display, which increases a liquid crystal touch screen, should
Touch screen is connect by driving with microcontroller, by touch screen can directly display gas standard volume flow and normal volume it is total
Amount, and contain much information, clear and intuitive, convenient reading may also display accumulative gas consumption, residual amount, price and table end state
Deng.In addition, can not only play the role of display screen by touch screen, additionally it is possible to cancel original button, so that product
Overall tightness higher.
As shown in Fig. 6 and Fig. 9, in order to facilitate remote control and data transmission, there are one be wirelessly transferred mould for microcontroller connection
Block, in the present embodiment, the wireless transport module use NB Internet of Things transmission modules, by the module may be implemented timing with
Server carry out data exchange, and by background application software can realize automatic data logging, traffic monitoring, remote valve gate system,
Long-range prepaid such as supplements and remotely readjusts prices with money at the functions, if in addition, system software expanded application realization qi leel is analysed, safety it is pre-
Police supplements the business such as short message prompting and bank paying with money.
It can be interacted with timing data, table end data uploads once automatically daily, can be also configured according to user demand
Uplink time, while obtaining server end and data command is issued to table end, it realizes and remotely copies control intelligent interaction function；It is long-range to adjust
The remote control functions such as valence, remote recharge, remote switch valve.The module is also integrated with the real-time collecting units of RTU and GPRS
DTU wireless communication modules, built-in TCP industrial standards wireless protocols, convenient and SCADA System for Gas Network central server data
Docking.As illustrated in figures 1 and 8, which is additionally provided with IC card slot 7, also can root since flowmeter carries output of pulse signal
It needs to export (4~20) mA standard analog signals, the multi-signals such as IC card quantitative pulse signal according to user.
As shown in Figure 10, in order to realize long-term preservation and the management of data, if being used for storing data there are one memory, when
When accident power-off occurs, data can be automatically saved, prevent data from losing, and can store 12 months and freeze historical data daily,
Store a month freezing data per hour, 10 years holding times.It is used for downloading data in addition, being additionally provided with a data-interface,
The interface, can be mating with special MODEM using RS-485, RS232C, MODBUS, HART protocol transmission data, passes through telephone network
Network builds automatic meter reading and manages system, and high degree of automation can also be carried out data transmission by infrared mode.
The flowmeter is also equipped with a DC power supply, is used for powering to whole device, and Overall Power Consumption is low, can be with interior
The long-term powered operation of battery (lithium battery can be used 6 years), and external power powered operation can be connect.
The device is additionally provided with an audible-visual annunciator, when low electricity, low amounts, dead table, sampling failure, leakage occurs, acousto-optic
While alarm can send out sound-light alarm, microcontroller can also remotely send out alarm signal by wireless transport module, remind
Staff makes corresponding emergency measure.
The flowmeter is the optimal selection instead of traditional film type gas meter, which can be according to country variant
And area, mete-wand state is set, the needs of various different measurement units can be met, pressure is worked at the same time and be up to 1.6MPa,
IP68 is protected, class of accuracy is up to 1.0 grades.
Embodiments of the present invention are explained in detail above in association with attached drawing, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (9)
1. a kind of novel rotz flowmeter, including cavity, cavity is equipped with air inlet and gas outlet, and waist wheel is equipped in the cavity
Component, it is characterised in that：The waist wheel assembly connects deceleration mechanism by magnetic couple connector, and the deceleration mechanism is connected with machinery
Counter further includes having volume amending unit, and the volume amending unit includes processor, and the processor is connected with touch screen
And wireless transport module.
2. novel rotz flowmeter according to claim 1, it is characterised in that：The air inlet is equipped with temperature sensor,
The temperature sensor is connected to the processor.
3. novel rotz flowmeter according to claim 1, it is characterised in that：The gas outlet is equipped with pressure sensor,
The pressure sensor is connected to the processor.
4. novel rotz flowmeter according to claim 1, it is characterised in that：Pulse is equipped with by the magnetic coupling connector to pass
Sensor, the pulse transducer are connected to the processor.
5. novel rotz flowmeter according to claim 1, it is characterised in that：Further include DC power supply, the direct current
Source is that the processor and touch screen are powered.
6. novel rotz flowmeter according to claim 1, it is characterised in that：The wireless transport module is NB Internet of Things
Transmission module.
7. novel rotz flowmeter according to claim 1, it is characterised in that：The processor is connected with for storing number
According to memory.
8. novel rotz flowmeter according to claim 1, it is characterised in that：Further include the data for being useful for data download
Interface, the data-interface are connected to the processor.
9. novel rotz flowmeter according to claim 1, it is characterised in that：The processor is connected with sound-light alarm
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810444921.5A CN108562342A (en) | 2018-05-10 | 2018-05-10 | A kind of novel rotz flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810444921.5A CN108562342A (en) | 2018-05-10 | 2018-05-10 | A kind of novel rotz flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108562342A true CN108562342A (en) | 2018-09-21 |
Family
ID=63538579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810444921.5A Pending CN108562342A (en) | 2018-05-10 | 2018-05-10 | A kind of novel rotz flowmeter |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836699A (en) * | 2019-11-08 | 2020-02-25 | 陕西航天动力高科技股份有限公司 | Internet of things temperature and pressure compensation diaphragm meter suitable for high-altitude area and compensation method |
-
2018
- 2018-05-10 CN CN201810444921.5A patent/CN108562342A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836699A (en) * | 2019-11-08 | 2020-02-25 | 陕西航天动力高科技股份有限公司 | Internet of things temperature and pressure compensation diaphragm meter suitable for high-altitude area and compensation method |
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