CN203964971U - Bicavate ultrasonic wave gas meter - Google Patents
Bicavate ultrasonic wave gas meter Download PDFInfo
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- CN203964971U CN203964971U CN201420419717.5U CN201420419717U CN203964971U CN 203964971 U CN203964971 U CN 203964971U CN 201420419717 U CN201420419717 U CN 201420419717U CN 203964971 U CN203964971 U CN 203964971U
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Abstract
The utility model relates to instrument field, and a kind of bicavate ultrasonic wave gas meter is provided, and comprises inlet chamber, outlet chamber, measuring tube and digital balance device; Between inlet chamber and outlet chamber, by measuring tube, be connected, the two ends of measuring tube are relatively set with ultrasonic transducer, and for measuring by the flow velocity of the gas in measuring tube, digital balance device is connected with ultrasonic transducer; Inlet chamber is provided with air intake opening, for being connected with air inlet pipeline; Outlet chamber is provided with gas outlet, and for being connected with outlet pipe, the sectional area of inlet chamber and outlet chamber is greater than the sectional area of air inlet pipeline or outlet pipe.The utility model adopts and carries out gas meavuremeut by ultrasound wave, and measuring accuracy is high, and reliability is strong; The sectional area of inlet chamber and outlet chamber is far longer than air inlet pipeline and outlet pipe, makes the high-frequency pressure fluctuation of air inlet and outlet side level and smooth, and the gas flow rate of the measuring tube of flowing through is stable, has avoided ultrasonic measurement frequency to cause disturbance, has improved measuring accuracy.
Description
Technical field
The utility model relates to instrument field, particularly a kind of bicavate ultrasonic wave gas meter.
Background technology
Gas meter, flow meter on market mostly generally is mechanical type diaphragm gas meter and electronic type diaphragm gas meter now.Mechanical type diaphragm gas meter is realized by mechanical rollers, and mechanical rollers is carried out add operation according to the tolerance of using, every use Yi Ge unit tolerance, and roller counting adds one, ultimately realizes tolerance metering.Electronic type diaphragm gas meter is to improve on traditional mechanical type basis, increases electronic display function, advance money and remote meter-reading function, has realized half-electron.
Ultrasonic wave gas meter is to utilize ultrasound wave to measure the gas flow rate in the measuring tube of flowing through, and then flow velocity is converted to flow by counter, by time integral, obtains integrated flow, completes the measurement of gas flow.
Complex structure, the volume of mechanical type diaphragm gas meter are large, error in dipping is large, range is little, poor stability, cannot carry out remote automatic meter reading.
Although electronic type diaphragm gas meter has solved the problem of remote automatic meter reading, be improved in mechanical structure after all, complex structure, the volume of mechanical type diaphragm gas meter are large, error in dipping is large, range is little, and the metering defects such as poor stability still exist.
Ultrasonic wave gas meter as shown in Figure 1 has very big advantage compared with mechanical type diaphragm gas meter on measuring principle.At aspects such as measuring accuracy, long-time stability, security, remote meter reading interfaces, stepped out major step.But because it is to measure the instantaneous velocity of the gas of the measuring tube of flowing through by ultrasonic flowmeter 7, and instantaneous velocity is subject to measuring tube import/export pressure influence large, thereby measuring tube import/export pressure stability has vital meaning to improving metering performance.By pressure transducer 8 is set in gas outlet, in its inlet end or outlet side pressure surge when larger, particularly when pressure surge frequency is identical with ultrasonic measurement frequency or when close, its error in dipping likely exceeds permissible range.
Utility model content
(1) technical matters that will solve
The purpose of this utility model be in order to solve existing machinery formula diaphragm gas meter and electronic type diaphragm gas meter complex structure, volume is large, error in dipping is large, range is little, poor stability; And the pressure surge frequency that the inlet end of existing ultrasonic type gas meter, flow meter and outlet side pressure surge produce easily causes disturbance to ultrasonic measurement frequency, the problem that causes error in dipping to increase.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of bicavate ultrasonic wave gas meter, comprises inlet chamber, outlet chamber and measuring tube;
Between described inlet chamber and described outlet chamber, by described measuring tube, be connected, the two ends of described measuring tube are relatively set with ultrasonic transducer, for measuring by the flow velocity of the gas in described measuring tube;
Described inlet chamber is provided with air intake opening, for being connected with air inlet pipeline; Described outlet chamber is provided with gas outlet, and for being connected with outlet pipe, the sectional area of described inlet chamber and described outlet chamber is greater than the sectional area of described air inlet pipeline or described outlet pipe.
Preferably, described measuring tube is horizontally disposed with.
Preferably, the sectional area of described inlet chamber and described outlet chamber is more than or equal to 5 times of sectional areas of draft tube or outlet pipe.
Preferably, described outlet chamber is arranged on the inside of described outlet chamber, and described inlet chamber is greater than 10 times of sectional areas of draft tube.
(3) beneficial effect
A kind of bicavate ultrasonic wave gas meter of the utility model confession, comprises inlet chamber, outlet chamber, measuring tube and digital balance device; Between inlet chamber and outlet chamber, by measuring tube, be connected, the two ends of measuring tube are relatively set with ultrasonic transducer, and for measuring by the flow velocity of the gas in measuring tube, digital balance device is connected with ultrasonic transducer; Inlet chamber is provided with air intake opening, for being connected with air inlet pipeline; Outlet chamber is provided with gas outlet, and for being connected with outlet pipe, the sectional area of inlet chamber and outlet chamber is greater than the sectional area of air inlet pipeline or outlet pipe.The utility model adopts and carries out gas meavuremeut by ultrasound wave, and measuring accuracy is high, and reliability is strong; The sectional area of inlet chamber and outlet chamber is far longer than air inlet pipeline and outlet pipe, make the high-frequency pressure fluctuation of air inlet and outlet side be able to level and smooth, the gas flow rate of measuring tube of flowing through is stablized, and has avoided ultrasonic measurement frequency to cause disturbance, has improved measuring accuracy.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing ultrasonic wave gas meter;
Fig. 2 is the schematic diagram of a kind of bicavate ultrasonic wave gas meter of the utility model embodiment mono-;
Fig. 3 is the schematic diagram of a kind of bicavate ultrasonic wave gas meter of the utility model embodiment bis-.
Reference numeral: 1, inlet chamber; 2, outlet chamber; 3, measuring tube; 4, dividing plate; 5, air intake opening; 6, gas outlet; 7, ultrasonic transducer; 8, pressure transducer.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
In description of the present utility model, except as otherwise noted, term " on ", D score, " level ", etc. orientation or the state relation of indication be based on orientation shown in the drawings or state relation, only the utility model and simplified characterization for convenience of description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation, construct and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connects integratedly; Can be to be directly connected, also can indirectly be connected by intermediary; Can be communication connection, can be to be also electrically connected to.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Embodiment mono-
As shown in Figure 2, a kind of bicavate ultrasonic wave gas meter that the utility model embodiment mono-provides, comprises the inlet chamber 1, outlet chamber 2, measuring tube 3 and the digital balance device that are arranged in housing; Inlet chamber 1 is two cavitys that demarcate by dividing plate 4 in a total cavity with outlet chamber 2, between inlet chamber 1 and outlet chamber 2, by measuring tube 3, be connected, between inlet chamber 1 and outlet chamber 2 except being undertaken gas exchange by measuring tube 3, all the other joints all seal setting, the measuring error that avoiding collaborates mutually brings; The two ends of measuring tube 3 are relatively set with ultrasonic transducer 7, the position of two ultrasonic transducers 7 is relative, be respectively used to transmit and receive ultrasound wave, measure by the flow velocity of the gas in measuring tube 3, digital balance device is connected with ultrasonic transducer 7, is arranged on housing for showing data, its principle is the diameter based on measuring tube 3, convert the gas velocity information recording to flow information, this is widespread use in existing ultrasound wave instrument is measured, does not repeat them here; Measuring tube 3 is horizontally disposed with, and makes the gas flowing through not be subject to the interference of gravity factor by measuring tube 3, has improved measuring accuracy.
Inlet chamber 1 is provided with and is connected air intake opening 5 with air inlet pipeline; Outlet chamber 2 is provided with and is connected gas outlet 6 with outlet pipe, the sectional area of inlet chamber 1 and outlet chamber 2 is far longer than the sectional area of air inlet pipeline or outlet pipe, preferably, the sectional area of inlet chamber 1 and outlet chamber 2 is more than or equal to 5 times of sectional areas of draft tube or outlet pipe, make the high-frequency pressure fluctuation of air inlet and outlet side be able to level and smooth, the gas flow rate of measuring tube of flowing through is stablized, and has avoided ultrasonic measurement frequency to cause disturbance, has improved measuring accuracy.
Principle of work: combustion gas from air intake opening 5 to gas outlet 6 process, first enter inlet chamber 1, then to outlet chamber 2, arrive again gas outlet 6 through measuring tube 3.Because inlet chamber 1 and outlet chamber 2 sectional areas are long-pending much larger than the pipeline section of equal length, so that the fluctuation of the high-frequency pressure of air inlet and outlet side is able to is level and smooth, the gas flow rate of the measuring tube that makes to flow through is stable.
Embodiment 2
As shown in Figure 3, the present embodiment two is basic identical with structure and the principle of embodiment mono-, something in common repeats no more, difference is: outlet chamber 2 is arranged on the inside of inlet chamber 1, and outlet chamber 2 serves as total cavity, and during production, outlet chamber 2 can be prepared separately, measuring tube can be integrated in outlet chamber 2 in advance, during assembling, only outlet chamber 2 need be put in inlet chamber 1, easy to make, the impermeability between inlet chamber and outlet chamber more easily guarantees; Because outlet chamber 2 has been arranged on the inside of inlet chamber 1, taken inlet chamber space, and outlet chamber 2 is greater than 5 times of sectional areas of escape pipe, inlet chamber 1 can be set to be greater than 10 times of sectional areas of draft tube, to avoid that ultrasonic measurement frequency is caused to disturbance, improved measuring accuracy.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection domain of the present utility model.
Claims (5)
1. a bicavate ultrasonic wave gas meter, is characterized in that, comprises inlet chamber (1), outlet chamber (2), measuring tube (3) and digital balance device;
Between described inlet chamber (1) and described outlet chamber (2), by described measuring tube (3), be communicated with, the two ends of described measuring tube (3) are oppositely arranged and are useful on the ultrasonic transducer (7) of measuring by the flow velocity of the gas in described measuring tube (3), and described digital balance device is connected with described ultrasonic transducer (7);
Described inlet chamber (1) is provided with the air intake opening (5) for being connected with air inlet pipeline; Described outlet chamber (2) is provided with for be connected gas outlet (6) with outlet pipe, and the sectional area of described inlet chamber (1) and described outlet chamber (2) is greater than the sectional area of described air inlet pipeline or described outlet pipe.
2. bicavate ultrasonic wave gas meter according to claim 1, is characterized in that, described measuring tube (3) is horizontally disposed with.
3. bicavate ultrasonic wave gas meter according to claim 2, is characterized in that, the sectional area of described inlet chamber (1) and described outlet chamber (2) is more than or equal to 5 times of sectional areas of draft tube or outlet pipe.
4. bicavate ultrasonic wave gas meter according to claim 3, is characterized in that, described inlet chamber (1) and outlet chamber (2) are two cavitys that a total cavity goes out by separator lined.
5. bicavate ultrasonic wave gas meter according to claim 2, is characterized in that, described outlet chamber (2) is arranged on the inside of described inlet chamber (1), and described inlet chamber (1) is greater than 10 times of sectional areas of draft tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419717.5U CN203964971U (en) | 2014-07-28 | 2014-07-28 | Bicavate ultrasonic wave gas meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419717.5U CN203964971U (en) | 2014-07-28 | 2014-07-28 | Bicavate ultrasonic wave gas meter |
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| CN203964971U true CN203964971U (en) | 2014-11-26 |
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| CN201420419717.5U Active CN203964971U (en) | 2014-07-28 | 2014-07-28 | Bicavate ultrasonic wave gas meter |
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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 |
| CN105387899A (en) * | 2015-11-12 | 2016-03-09 | 重庆前卫克罗姆表业有限责任公司 | Shell structure of ultrasonic flowmeter |
| CN105403264A (en) * | 2015-11-12 | 2016-03-16 | 重庆前卫克罗姆表业有限责任公司 | Channel in ultrasonic flowmeter |
| CN105444830A (en) * | 2015-11-12 | 2016-03-30 | 重庆前卫克罗姆表业有限责任公司 | Ultrasonic flowmeter |
| CN108775934A (en) * | 2018-07-20 | 2018-11-09 | 山东大学 | The indirect metering method of digitlization gas flow based on AMFD algorithms |
| CN112334741A (en) * | 2018-06-18 | 2021-02-05 | 彼得罗菲奥伦蒂尼有限公司 | Gas meter |
-
2014
- 2014-07-28 CN CN201420419717.5U patent/CN203964971U/en active Active
Cited By (10)
| 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 |
| CN105387899A (en) * | 2015-11-12 | 2016-03-09 | 重庆前卫克罗姆表业有限责任公司 | Shell structure of ultrasonic flowmeter |
| CN105403264A (en) * | 2015-11-12 | 2016-03-16 | 重庆前卫克罗姆表业有限责任公司 | Channel in ultrasonic flowmeter |
| CN105444830A (en) * | 2015-11-12 | 2016-03-30 | 重庆前卫克罗姆表业有限责任公司 | Ultrasonic flowmeter |
| CN105444830B (en) * | 2015-11-12 | 2018-12-14 | 重庆前卫克罗姆表业有限责任公司 | Ultrasonic flowmeter |
| CN105387899B (en) * | 2015-11-12 | 2018-12-14 | 重庆前卫克罗姆表业有限责任公司 | A kind of ultrasonic flowmeter shell structure |
| CN105403264B (en) * | 2015-11-12 | 2019-05-07 | 重庆前卫克罗姆表业有限责任公司 | Runner in ultrasonic flowmeter |
| CN112334741A (en) * | 2018-06-18 | 2021-02-05 | 彼得罗菲奥伦蒂尼有限公司 | Gas meter |
| CN108775934A (en) * | 2018-07-20 | 2018-11-09 | 山东大学 | The indirect metering method of digitlization gas flow based on AMFD algorithms |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 101102 Tongzhou District science and Technology Park, Zhongguancun, Tongzhou science and Technology Park Jinqiao Park Industrial Park, the base of the king of the south, two street, building No. 23, No. 25 Patentee after: Beijing jiajieneng Polytron Technologies Inc Address before: 101102 Zhongguancun science and Technology Park, Tongzhou science and Technology Park, Tongzhou District Jinqiao Science and Technology Industrial Park, King Sheng, South Street, No. two, No. 23, building 25 Patentee before: Beijing Fine & Clean Energy Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Double-cavity type ultrasonic gas meter Effective date of registration: 20180921 Granted publication date: 20141126 Pledgee: Bank of Beijing Zhongguancun branch, Limited by Share Ltd, Haidian Pledgor: Beijing jiajieneng Polytron Technologies Inc Registration number: 2018990000862 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210419 Granted publication date: 20141126 Pledgee: Bank of Beijing Zhongguancun branch Limited by Share Ltd. Haidian Pledgor: BEIJING JIAJIENENG TECHNOLOGY Co.,Ltd. Registration number: 2018990000862 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |