CN104655212A - Ultrasonic gas flow meter - Google Patents
Ultrasonic gas flow meter Download PDFInfo
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- CN104655212A CN104655212A CN201510102353.7A CN201510102353A CN104655212A CN 104655212 A CN104655212 A CN 104655212A CN 201510102353 A CN201510102353 A CN 201510102353A CN 104655212 A CN104655212 A CN 104655212A
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Abstract
The invention relates to the technical field of gas metering devices, in particular to a gas flow meter for metering based on an ultrasonic principle, aims to overcome the defects of noise produced by a pressure regulating valve and a switching valve in a pipeline and influence of various pollutants in a tested fluid on an ultrasonic metering result, and provides an ultrasonic gas flow meter. The ultrasonic gas flow meter comprises an upper shell and a pedestal, wherein the pedestal is arranged on the lower side of the upper shell; a gas inlet pipe and a gas outlet pipe are arranged in the upper shell; a middle shell is arranged in the pedestal and comprises cavities which are formed in two sides of the middle shell respectively and a flow passage between the two cavities; one end of the middle shell is connected with the gas inlet pipe, and the other end of the middle shell is connected with the gas outlet pipe; baffle plates are arranged in the gas inlet pipe and the gas outlet pipe; the two ends of the flow passage are provided with rectifying cavities; partition plates which are parallel to the flow direction are arranged in the flow passage; two ultrasonic transducers which are connected with the flow passage are arranged on the two sides of the flow passage respectively.
Description
Technical field
The present invention relates to combustible gas metering arrangement technical field, particularly a kind of gas meter carrying out measuring based on ultrasonic wave principle.
Background technology
Along with rock gas etc. cleans, the develop rapidly of high efficient energy sources, combustion gas enters huge numbers of families, increasing town dweller brings into use rock gas, and the metering clearing of rock gas consumption are the necessary equipments of natural gas motorcar, it is Household water, electricity, gas three one of is shown, the domestic gas meter of current use is the epithelium table based on positive-displacement principle substantially, this table is input mechanical type table, epithelium inside one one and motion are measured, measuring accuracy is limited, and the water of epithelium inside rock gas, under the impact of oil and dust, can be aging gradually, therefore measuring accuracy can be deteriorated gradually, and epithelium table limits by principle own, miniaturization can not be carried out.
The notification number that applicant has is that the Chinese utility model of CN203337198 provides one based on hyperacoustic ultrasonic wave gas meter, and its adopts ultrasonic technology to realize the gas metering of gas meter, flow meter, and it does not have movable mechanical part, can keep high precision for a long time; But because ultrasonic wave gas measuring apparatus draws metric results by ultrasonic investigation detected fluid speed, the factors such as the pollutant (as the solid particle in tested combustion gas, moisture and oil gas) in the noise that the pressure regulator valve therefore on the flow speed stability of detected fluid, pipeline and switch valve produce and detected fluid can have influence on measuring accuracy and the quantification stability of supersonic wave metering device.The impact reducing above-mentioned undesirable element by various design is the developing direction of supersonic wave metering device.
Summary of the invention
The object of the invention is to overcome various pollutant (as the solid particle in tested combustion gas, moisture, oil gas) and gas flow rate in noise that in pipeline, pressure regulator valve and switch valve produce, combustion gas and, on the impact of supersonic wave metering result, provides a kind of ultrasonic wave gas measuring apparatus.
In order to achieve the above object, the technical solution used in the present invention is, a kind of ultrasonic wave gas flowmeter comprises upper shell, base, described floor installation is below upper shell, draft tube is provided with in described upper shell, escape pipe, mesochite is provided with in described base, described mesochite comprises the cavity being separately positioned on mesochite both sides and the runner be arranged between two cavitys, described mesochite one end connects draft tube, the other end connects escape pipe, baffle plate is provided with in described draft tube and escape pipe, described runner two ends are provided with rectifying cavity, the demarcation strip being parallel to the flow direction is provided with in described runner, described runner both sides are respectively provided with a ultrasonic transducer be connected with runner.
As preferred version of the present invention: the line of two described ultrasonic transducers and the angle of runner center line are acute angle, are conducive to the detection of ultrasonic transducer.
As preferred version of the present invention: described two are respectively arranged with wire gauze between ultrasonic transducer and described runner.
As preferred version of the present invention: be provided with display screen in described upper shell, the data of gas meter are shown, be convenient to observe, described base is provided with battery case.
compared with prior art, beneficial effect of the present invention:a kind of gas meter of the present invention effectively can avoid the impact because of the pressure regulator valve on gas flow rate stability, pipeline and the factor such as the noise of switch valve generation and the pollutant (as the solid particle in tested combustion gas, moisture and oil gas) of combustion gas, ensure that measuring accuracy and the quantification stability of supersonic wave metering device
.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of base of the present invention.
Fig. 3 is mesochite structural representation of the present invention.
Fig. 4 is the structural representation of draft tube, escape pipe and runner in the present invention.
Fig. 5 is the side view of runner of the present invention.
Accompanying drawing illustrates: 1, upper shell, 2, base, 3, draft tube, 4, escape pipe, 5, mesochite, 6, cavity, 7, runner, 8, baffle plate, 9, rectifying cavity, 10, demarcation strip, 11, ultrasonic transducer, 12, wire gauze, 13, display screen, 14, battery case.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1 and Figure 2, a kind of gas meter of the present invention, comprises upper shell 1, base 2, draft tube 3, escape pipe 4, the battery case 14 that is arranged on the display screen 13 on upper shell 1 and is arranged on above base 2, is provided with mesochite 5 in base 2.
As Fig. 3, shown in Fig. 4, baffle plate 8 is provided with in draft tube 3 and escape pipe 4 in the present invention, make combustion gas flowing in reverse-s shape path from draft tube 3 to rectifying cavity 9, make combustion gas after runner 7 from the rectifying cavity 9 of runner 7 other end to escape pipe 4 S-shaped path flowing simultaneously, on pipeline, the rotation of pressure regulator valve or switch valve can bring the fluctuation of gas flow rate, the design of baffle plate 8 in draft tube 3 and escape pipe 4, its objective is that the noise reducing and produce when pressure regulator valve or switch valve rotate on pipeline is on the impact of gas meter result, also play the effect of adjustment and stable gas flow rate simultaneously.Mesochite 5 both sides are respectively provided with a cavity 6 for collecting and hold the pollutant (as various solid particle, moisture and oil gas) in combustion gas, enter in runner 7 affect metric results to prevent pollutant.
As Fig. 4, shown in Fig. 5, in the present invention, runner 7 two ends are respectively arranged with a rectifying cavity 9, be provided with the demarcation strip 10 that is parallel to the flow direction in runner 7 and be arranged on runner 7 both sides and the ultrasonic transducer 11 be connected with runner 7, the line of two ultrasonic transducers 11 and the angle of runner 7 center line are acute angle, the wire gauze 12 of pollutant in isolated combustion gas is provided with between runner 7 and ultrasonic transducer 11, wire gauze 12 is transmission ultrasonic wave material, do not affect hyperacoustic passing through, like this under the normal work not affecting ultrasonic transducer 11, further prevent pollutant in combustion gas (as various solid particle, moisture and oil gas) impact on ultrasonic transducer 11.Five demarcation strips 10 are provided with in the present embodiment in runner 7, runner 7 is divided into six flat small flow channels, the rectifying cavity 9 arranged at runner 7 two ends, its effect is stable turnover combustion gas speed, avoid the normal work of the influence of fluctuations flowmeter because of flow velocity, under the acting in conjunction of rectifying cavity 9 and demarcation strip 10, make the combustion gas speed of turnover runner 7 more stable, prevent flow rate effect metric results.
The present invention by arranging baffle plate 8 in draft tube 3 and escape pipe 4, decreases the noise that produces because of the pressure regulator valve on pipeline and switch valve to the impact of gas meter result, also plays the effect of adjustment and stable gas flow rate simultaneously; Mesochite 5 two ends arrange cavity 6 respectively, for collecting the pollutant (as the solid particle in tested combustion gas, moisture and oil gas) in combustion gas, avoiding because pollutant enters runner 7, affecting the metering of gas meter; In runner 7 two ends rectification part 9 and runner 7, demarcation strip 10 is set, makes the fast reading of the combustion gas of turnover runner 7 more stable, prevent flow rate effect metric results; For the normal table work of gas meter of the present invention, provide and provide powerful support for.
Claims (4)
1. a ultrasonic wave gas flowmeter, it is characterized in that: comprise upper shell (1), base (2), described base (2) is arranged on upper shell (1) below, draft tube (3) is provided with in described upper shell (1), escape pipe (4), mesochite (5) is provided with in described base (2), described mesochite (5) comprises the cavity (6) being separately positioned on mesochite (5) both sides and the runner (7) be arranged between two cavitys (6), described mesochite (5) one end connects draft tube (3), the other end connects escape pipe (4), baffle plate (8) is provided with in described draft tube (3) and escape pipe (4), described runner (7) two ends are provided with rectifying cavity (9), the demarcation strip (10) being parallel to the flow direction is provided with in described runner (7), described runner (7) both sides are respectively provided with a ultrasonic transducer (11) be connected with runner (7).
2. ultrasonic wave gas flowmeter according to claim 1, is characterized in that: the described line of two ultrasonic transducers (11) and the angle of runner center line are acute angle.
3. ultrasonic wave gas flowmeter according to claim 1 and 2, is characterized in that: be respectively arranged with wire gauze (12) between two described ultrasonic transducers (11) and described runner (7).
4. ultrasonic wave gas flowmeter according to claim 1, is characterized in that: be provided with display screen (13) in described upper shell (1), and described base (2) is provided with battery case (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510102353.7A CN104655212A (en) | 2015-03-09 | 2015-03-09 | Ultrasonic gas flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510102353.7A CN104655212A (en) | 2015-03-09 | 2015-03-09 | Ultrasonic gas flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104655212A true CN104655212A (en) | 2015-05-27 |
Family
ID=53246613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510102353.7A Pending CN104655212A (en) | 2015-03-09 | 2015-03-09 | Ultrasonic gas flow meter |
Country Status (1)
| Country | Link |
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| CN (1) | CN104655212A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489563A (en) * | 2018-04-27 | 2018-09-04 | 清华大学 | A kind of measurement pipe structure for ultrasonic wave gas meter |
| CN110243422A (en) * | 2019-07-22 | 2019-09-17 | 安徽扬天金塑新能源装备股份公司 | A kind of combustion gas supersonic wave metering complexes |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001324368A (en) * | 2000-05-18 | 2001-11-22 | Osaka Gas Co Ltd | Gas meter |
| US6453757B1 (en) * | 1999-05-06 | 2002-09-24 | M&Fc Holding Company | Symmetrical ultrasound gas flow meter housing and related multi-configuration gas flow meter assembly |
| WO2013041104A1 (en) * | 2011-09-23 | 2013-03-28 | Kamstrup A/S | Flow meter with protruding transducers |
| CN204064362U (en) * | 2014-10-08 | 2014-12-31 | 成都千嘉科技有限公司 | A kind of flow passage structure of ultrasonic flow rate measurement device |
| CN204085590U (en) * | 2014-06-09 | 2015-01-07 | 沈阳市航宇星仪表有限责任公司 | Multiple-piece ultrasonic wave gas meter rectification unit runner |
| CN204405124U (en) * | 2015-03-09 | 2015-06-17 | 成都千嘉科技有限公司 | A kind of ultrasonic wave gas flowmeter |
-
2015
- 2015-03-09 CN CN201510102353.7A patent/CN104655212A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6453757B1 (en) * | 1999-05-06 | 2002-09-24 | M&Fc Holding Company | Symmetrical ultrasound gas flow meter housing and related multi-configuration gas flow meter assembly |
| JP2001324368A (en) * | 2000-05-18 | 2001-11-22 | Osaka Gas Co Ltd | Gas meter |
| WO2013041104A1 (en) * | 2011-09-23 | 2013-03-28 | Kamstrup A/S | Flow meter with protruding transducers |
| CN204085590U (en) * | 2014-06-09 | 2015-01-07 | 沈阳市航宇星仪表有限责任公司 | Multiple-piece ultrasonic wave gas meter rectification unit runner |
| CN204064362U (en) * | 2014-10-08 | 2014-12-31 | 成都千嘉科技有限公司 | A kind of flow passage structure of ultrasonic flow rate measurement device |
| CN204405124U (en) * | 2015-03-09 | 2015-06-17 | 成都千嘉科技有限公司 | A kind of ultrasonic wave gas flowmeter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489563A (en) * | 2018-04-27 | 2018-09-04 | 清华大学 | A kind of measurement pipe structure for ultrasonic wave gas meter |
| CN110243422A (en) * | 2019-07-22 | 2019-09-17 | 安徽扬天金塑新能源装备股份公司 | A kind of combustion gas supersonic wave metering complexes |
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Application publication date: 20150527 |