CN104596593A - Intelligent monitoring device for gas flow measurement - Google Patents
Intelligent monitoring device for gas flow measurement Download PDFInfo
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- CN104596593A CN104596593A CN201410825826.1A CN201410825826A CN104596593A CN 104596593 A CN104596593 A CN 104596593A CN 201410825826 A CN201410825826 A CN 201410825826A CN 104596593 A CN104596593 A CN 104596593A
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- gas flow
- monitoring device
- intelligent monitoring
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- flow measurement
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Abstract
The invention discloses an intelligent monitoring device for gas flow measurement. A pressure sensor and a temperature sensor A are arranged at an output opening of a flow meter body. A temperature sensor B is arranged in sealing liquid. A pulse generator is arranged outside a drum wheel rotation shaft. The pulse generator and the drum wheel rotation shaft synchronously rotate. Data of the sensors and the pulse quantity are sent to a single-chip microcomputer. After the data are processed by the single-chip microcomputer, the flow data which are calculated are displayed on a displayer. According to the intelligent monitoring device, the 32-bit ARM single-chip microcomputer is adopted to achieve intelligent detection and management of measurement and operation of a wet gas flow meter with high performance. The measurement and operation condition of the flow meter can be displayed in a real-time and comprehensive mode, and spot operation is greatly facilitated. Through a human-machine interaction interface, intelligent flow detection and flow management can be achieved according to the requirement of a user, and all measurement and operation requirements can be met to the largest extent. The innovation functions which are not provided by an existing wet gas flow meter in the market are provided.
Description
Technical field
The present invention relates to the intelligent measurement instrument of pin-point accuracy gas flow measurement, particularly a kind of intelligent monitoring device for gas flow measurement.
Background technology
When adopting existing wet test meter to carry out cubing or the transmission of quantity value of pin-point accuracy to the gas flowing through transmission loop, the modifying factor that wet test meter must be used to provide when upper level standard is calibrated carries out error of indication corrected Calculation; And the real-time working condition parameter such as working pressure, working temperature provided when tested gas exports is for the corrected Calculation when analysis of measured gas under behaviour in service or transmission of quantity value simultaneously.
Current wet test meter is the instantaneous output quantity of mechanical indicating pointer display volume arranging artificial reading at different parts; Mechanical counter recording volume is set and adds up output quantity; And by manual time-keeping, after calculating output gas flow of gas, the modifying factor of consulting under corresponding flow carries out corrected Calculation to obtain the final volume Output rusults under working condition; Meanwhile manually read gas output pressure that U-tube pressure gauge detects, output temperature that glass shell thermometer detects, to provide the operating condition such as temperature, pressure parameter.This mode make wet test meter be difficult to realize in practical operation continuous operation to volume output valve and the operating mode such as pressure, temperature synchronous, accurately read in real time; It is also inconvenient completely that operating personnel record data; More do not adapt to the requirement of automatic measure control technical development.
Summary of the invention
The object of this invention is to provide a kind of intelligent monitoring device for gas flow measurement to make up prior art deficiency.
The present invention be achieve the goal adopt technical scheme be:
For an intelligent monitoring device for gas flow measurement, comprise flowmeter bodies, it is characterized in that:
The equipped at outlet port of flowmeter bodies is provided with pressure transducer and temperature sensor A; Temperature sensor B is provided with in sealing liquid in flowmeter bodies; Drum rotating shaft in flowmeter bodies is outside equipped with pulse producer, pulse producer and drum rotating shaft synchronous rotary;
Pressure transducer, temperature sensor are connected to one-chip computer, by one-chip computer Real-time Collection sensing data; The digit pulse amount that pulse producer obtains is sent to one-chip computer;
One-chip computer, after data processing, is shown by display device or transmits the data on flows after calculating and duty parameter by communication interface to host computer, or the processing mode adopting display simultaneously and upload.
Optimize: described display device is arranged in flowmeter bodies.
Optimize: flowmeter bodies is provided with keyboard interface and ac-dc conversion circuit.
Optimize: pulse producer is photoelectric encoder or rotary transformer.
good effect of the present invention is:
The present invention adopts 32 ARM one-chip computers to achieve with its high-performance and measures to wet test meter the intellectualized detection and management that run.The present invention can the metering operation conditions of real-time, comprehensive centralized displaying flowmeter, greatly facilitates execute-in-place; The present invention, by human-computer interaction interface, can carry out intelligentized gauge check and measuring control by the requirement of user, can meet various metering service requirement to the utmost; The present invention, above can the automatic calibration that realize the flow correction factor online with calibrating installation by communication interface and the anti-interference CAN Bus bus of height, alleviates the labour intensity of calibration operation person, reduces error, raises the efficiency; The on-site terminal equipment that can make it down to become high reliability incorporates automatical measure and control system.Like this, a kind of intelligent monitoring device for gas flow measurement of the present invention and wet test meter ontology fusion become a kind of electromechanical integrated product, provide the innovative function that existing market finding wet test meter does not have.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is system works block diagram.
Fig. 4 is working procedure block diagram.
Embodiment
Embodiment:
In the drawings, 1 is pressure transducer, and 2 is temperature sensors, and 3 is temperature sensors, 4 is pulse producers, and 5 is drum rotating shafts, and 6 is display device (liquid crystal display), and 7 is keyboard interfaces, 8 is ac-dc conversion circuit, and 9 is communication interfaces, and 10 is flowmeter bodies.
Pressure transducer 1, temperature sensor 2, temperature sensor 3 are all selected and are responded device fast, to ensure the real-time detected.
Pressure transducer 1 and temperature sensor 2 detect pressure and temperature case parameter when gas exports, and use when being supplied to transmission of quantity value, temperature sensor 3 detects flowmeter bodies 10 inner sealing liquid working temperature, and whether measurement meets regulatory requirements.
The analog quantity of representative site physical amount that the sensor exports, is converted into the discernible digital quantity of computing machine by the A/D change-over circuit of follow-up connection and sends one-chip computer counter to and keep in;
Pulse producer 4 and drum rotating shaft 5 synchronous rotary produce the output volumetric pulse equivalent directly related with drum rotations and corner, use in the good laboratory of working environment, general selection installs photoelectric encoder as pulse producer 4, and subsequent conditioning circuit can be reduced to the buffer circuit ensureing transmission security; When environment for use condition is poor, select rotary transformer as pulse producer 4, then must configuration transitions circuit between rotary transformer and buffer circuit, digit pulse amount can be obtained.
Digit pulse amount provides often instantaneous operating mode service data in real time to one-chip computer.
Data communication assembly is made up of communication interface 9 and CAN Bus bus circuit and RS485 circuit, this is one group of I/O bidirectional data path, when enabling RS485 communication channel, the present invention can be connected with verification standard set-up, the real-time volume that the start and stop instruction of acceptance verification standard set-up, reception verification standard set-up send exports data, top hole pressure and outlet temperature and flow information; Meanwhile, one-chip computer by every operating condition data described before synchronous acquisition, and goes out the error of indication modifying factor of wet test meter at current alignment flow point place by the calculated with mathematical model that calibrating standard specifies; When enabling field bus communication passage, the present invention being installed, just becoming a smart field detector, include automatical measure and control system in as on-site terminal equipment, send Monitoring Data to host computer or accept the inquiry of host computer.
Human-computer interaction function assembly, is made up of liquid crystal display 6, keyboard interface 7 and decoding scheme, and liquid crystal display 6, as visual output device, directly goes out pin with one-chip computer output port and is connected; Operator can be led to liquid crystal display 6 and be read all floor datas in operational process of the present invention in real time, wherein volume export indicating value be through modifying factor convert after the data that can directly use; When after the external input keyboard access of keyboard interface 7, operator is by keyboard operation, and in liquid crystal display 6, query history data, change operating condition output item or input/change modifying factor, realize and man-machine interaction of the present invention.
Hardware data storage hardware circuit has data storage function, have employed nonvolatile memory, it directly connects and is connected with the data of one-chip computer and address wire, required master data is run, as volumetric pulse equivalent value, volume export error of indication modifying factor, pressure and the calibration parameter of temperature sensor and the display mode of liquid crystal display 6 and display items etc. for computing machine storage/access wet test meter; Memory function assembly IV also has the service data of preserving certain period and supplies inquiry.
DC power supply functional module, is made up of ac-dc conversion circuit 8 and multi items power circuit device, meets all devices of intelligent apparatus of the present invention and circuit electricity consumption, comprises the needs of required isolation electricity consumption.DC power supply functional module, with the input of 220V civil power, is converted by multi items power circuit device group after step-down, rectification and filtering.
A kind of intelligent monitoring device for gas flow measurement of the present invention, adopt the embedded OS UC/OSII of high-performance 32-bit ARM one-chip computer and specialty, this machine data-handling capacity is very strong, meets wet test meter and runs real-time and computational accuracy requirement.After wet test meter powers on and enables, initialization by comprising self-inspection is run, first identify that PORT COM is to determine whether to perform calibrating operation or on-line execute afterwards, otherwise be defined as unit independent operating, can inquiry keyboard interface, accept operator to the input of master data or amendment, set up the duty that operator requires; Afterwards, one-chip computer checks the environment temperature in exit and sealing liquid temperature and provides prompting, and after reaching operating standard or the given requirement of operator, wet test meter can be devoted oneself to work operation.
Claims (4)
1. for an intelligent monitoring device for gas flow measurement, comprise flowmeter bodies, it is characterized in that:
Flowmeter bodies is provided with pressure transducer and temperature sensor; Drum rotating shaft in flowmeter bodies is outside equipped with pulse producer, pulse producer and drum rotating shaft synchronous rotary;
Pressure transducer, temperature sensor are connected to one-chip computer, by one-chip computer Real-time Collection sensing data; The digit pulse amount that pulse producer obtains is sent to one-chip computer;
One-chip computer, after data processing, is shown by display device or transmits the data on flows after calculating and duty parameter by communication interface to host computer, or the processing mode adopting display simultaneously and upload.
2. a kind of intelligent monitoring device for gas flow measurement according to claim 1, is characterized in that: described display device is arranged in flowmeter bodies.
3. a kind of intelligent monitoring device for gas flow measurement according to claim 1 and 2, is characterized in that: flowmeter bodies is provided with keyboard interface and ac-dc conversion circuit.
4. a kind of intelligent monitoring device for gas flow measurement according to claim 1, is characterized in that: pulse producer is photoelectric encoder or rotary transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825826.1A CN104596593A (en) | 2014-12-28 | 2014-12-28 | Intelligent monitoring device for gas flow measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825826.1A CN104596593A (en) | 2014-12-28 | 2014-12-28 | Intelligent monitoring device for gas flow measurement |
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| Publication Number | Publication Date |
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| CN104596593A true CN104596593A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410825826.1A Pending CN104596593A (en) | 2014-12-28 | 2014-12-28 | Intelligent monitoring device for gas flow measurement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136252A (en) * | 2015-08-19 | 2015-12-09 | 桂林电子科技大学 | Double-chamber gas metering device with metering correction function |
| CN111693119A (en) * | 2020-07-29 | 2020-09-22 | 中国计量科学研究院 | High-precision flow calibration equipment |
| CN113252125A (en) * | 2021-05-25 | 2021-08-13 | 宜宾机电一体化研究所 | High measurement accuracy wet-type gas flowmeter and measurement drum slewing mechanism and measurement indicating mechanism |
| CN113899412A (en) * | 2020-06-19 | 2022-01-07 | 哈尔滨理工大学 | A turbine flowmeter |
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| US5531127A (en) * | 1993-08-13 | 1996-07-02 | Lucas Industries Public Limited Company | Optical torque sensor |
| CN2537963Y (en) * | 2002-05-21 | 2003-02-26 | 田宏杰 | Intelligent gas flow meter |
| CN203688002U (en) * | 2013-12-02 | 2014-07-02 | 天津斯秘特精密仪表股份有限公司 | Novel gas turbine flowmeter |
| CN204758040U (en) * | 2014-12-28 | 2015-11-11 | 宜宾机电一体化研究所 | Be used for gas flow measuring intelligent monitoring device |
-
2014
- 2014-12-28 CN CN201410825826.1A patent/CN104596593A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531127A (en) * | 1993-08-13 | 1996-07-02 | Lucas Industries Public Limited Company | Optical torque sensor |
| CN2537963Y (en) * | 2002-05-21 | 2003-02-26 | 田宏杰 | Intelligent gas flow meter |
| CN203688002U (en) * | 2013-12-02 | 2014-07-02 | 天津斯秘特精密仪表股份有限公司 | Novel gas turbine flowmeter |
| CN204758040U (en) * | 2014-12-28 | 2015-11-11 | 宜宾机电一体化研究所 | Be used for gas flow measuring intelligent monitoring device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136252A (en) * | 2015-08-19 | 2015-12-09 | 桂林电子科技大学 | Double-chamber gas metering device with metering correction function |
| CN105136252B (en) * | 2015-08-19 | 2018-02-16 | 桂林电子科技大学 | A kind of double Air-chamber type gas-metering devices with metering amendment |
| CN113899412A (en) * | 2020-06-19 | 2022-01-07 | 哈尔滨理工大学 | A turbine flowmeter |
| CN111693119A (en) * | 2020-07-29 | 2020-09-22 | 中国计量科学研究院 | High-precision flow calibration equipment |
| CN113252125A (en) * | 2021-05-25 | 2021-08-13 | 宜宾机电一体化研究所 | High measurement accuracy wet-type gas flowmeter and measurement drum slewing mechanism and measurement indicating mechanism |
| CN113252125B (en) * | 2021-05-25 | 2023-08-25 | 宜宾机电一体化研究所 | Wet-type gas flowmeter with high measurement accuracy and metering drum rotation mechanism |
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Application publication date: 20150506 |
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