CN208795306U - A kind of gas mass flow meter - Google Patents
A kind of gas mass flow meter Download PDFInfo
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- CN208795306U CN208795306U CN201821473252.6U CN201821473252U CN208795306U CN 208795306 U CN208795306 U CN 208795306U CN 201821473252 U CN201821473252 U CN 201821473252U CN 208795306 U CN208795306 U CN 208795306U
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- gas
- mass flow
- flow meter
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- gas mass
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Abstract
The utility model relates to a kind of gas mass flow meters, including flowmeter bodies and controller, the flowmeter bodies include shell and are set to the intracorporal flow testing division for detection gas volume flow of shell, the quality testing portion is electrically connected with the controller, the quality testing portion includes being set to the intracorporal infrared sensor of the shell and infrared light supply, the infrared light supply is oppositely arranged with the infrared sensor, gas absorption chamber is connected on the shell, the gas absorption chamber is connected to the inside of the shell, the infrared sensor is set in the gas absorption chamber, the infrared light supply is fixedly installed on the inner wall of the shell.A kind of gas mass flow meter provided by the utility model, by the gas mass flow meter being installed on gas transport pipeline, it can be achieved that checking each component part and its content of gas comprehensively.
Description
Technical field
The utility model relates to field of flow meters, and in particular to a kind of gas mass flow meter.
Background technique
GB12206-90 gives the definition of China's gas calorific value: (0 DEG C, 101.3KPa) of every standard cubic meter dry combustion
The heat generated when gas completely burned.With the formal reality of standard GB/T/T22723-2008 " measurement of natural gas energy "
It applies, the metering method of China's natural gas starts to be changed from volume metering to energy meter.Energy meter can disappear to a certain extent
When except volume metering because caused by metering reference condition is different dispute on price, more can adequately embody natural gas as fuel
Real use value, therefore from flow measurement mode to energy meter mode transition be Natural Gas In China metering development certainty
Trend.
And energy meter is carried out to combustion gas, then it needs to measure by corresponding instrument and equipment each included in combustion gas
Component part and its content calculate its fuel value according to each component part and its content surveyed accordingly, and then obtain
The gross calorific value of combustion gas realizes the energy meter to combustion gas, but needs to pass through sampling using dedicated instrument and equipment in the prior art
Mode each component and its content of combustion gas are analyzed, the analytic process higher cost, and being measured by way of sampling
Rather than measurement comprehensively, there are large errors.
Utility model content
The utility model provides a kind of gas mass flow meter, by the way that the gas mass flow meter is installed in gas fortune
, it can be achieved that checking each component part and its content of gas comprehensively on defeated pipeline.
To achieve the above object, the utility model provides a kind of gas mass flow meter, including flowmeter bodies and control
Device processed, the flowmeter bodies include shell and are set to the intracorporal flow testing division for detection gas volume flow of shell,
The quality testing portion is electrically connected with the controller, and the quality testing portion includes being set to the intracorporal infrared sensing of the shell
Device and infrared light supply, the infrared light supply are oppositely arranged with the infrared sensor, are connected with gas absorption chamber on the shell,
The gas absorption chamber is connected to the inside of the shell, and the infrared sensor is set in the gas absorption chamber, described
Infrared light supply is fixedly installed on the inner wall of the shell.
Preferably, the controller is equipped with display screen.
Preferably, the gas mass flow meter further includes the pressure for detecting the pressure of enclosure interior gas
Sensor, the pressure sensor are electrically connected with the controller.
Preferably, the gas mass flow meter further includes the temperature for detecting the temperature of enclosure interior gas
Sensor, the temperature sensor are electrically connected with the controller.
Preferably, the shell is in hollow cylindrical shape, and the shell includes air inlet and air outlet, air inlet
Rectifier is equipped at mouthful.
Preferably, optical filter is equipped in the gas absorption chamber, the optical filter is set to the infrared light supply
Between the infrared sensor.
Preferably, the infrared sensor is Miniature infrared gas sensor, and the infrared light supply is electrical modulation
Infrared light supply.
Preferably, the infrared sensor includes for detecting the concentration for being used for each component part of detection gas
Detector and signal amplifier, the detector are electrically connected with the signal amplifier, the signal amplifier and the control
Device electrical connection.
Preferably, the gas mass flow meter further includes attachment base, and the controller passes through the attachment base
It is connect with the flowmeter bodies.
A kind of gas mass flow meter described in above-mentioned technical proposal, by the way that the gas mass flow meter is installed in gas
On transport pipeline, when gas enters the shell of gas mass flow meter and flows through flow testing division, infrared sensor is based on gas
CH4 (methane) and CnHm (other in addition to methane can be measured accurately simultaneously to the principle of the Lambert-Beer's law of infrared Absorption
Hydrocarbon) gas concentration, and the concentration of each gas component is calculated automatically, the structure is simple and is mountable to gas transport pipe
On road, comprehensive inspection to gas each component and its corresponding concentration can be realized during gas transport, both saved
Check cost, the precision for improving inspection again.
Detailed description of the invention
Such as the internal structure cross-sectional view that Fig. 1 is the utility model.
Wherein: 1, rectifier；2, infrared light supply；3, shell；4, gas absorption chamber；5, optical filter；6, infrared sensor；7,
Controller；8, temperature sensor；9, pressure sensor.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
It is as shown in Figure 1 a kind of gas mass flow meter provided by the present embodiment, which is characterized in that including flowmeter sheet
Body and controller 7, the flowmeter bodies include shell 3 and the stream for detection gas volume flow that is set in shell 3
Test section is measured, the quality testing portion is electrically connected with the controller 7, and the quality testing portion includes being set to the shell 3
Interior infrared sensor 6 and infrared light supply 2, the infrared light supply 2 are oppositely arranged with the infrared sensor 6, on the shell 3
It is connected with gas absorption chamber 4, the gas absorption chamber 4 is connected to the inside of the shell 3, and the infrared sensor 6 is set to
In the gas absorption chamber 4, wherein the effect of gas absorption chamber 4 is to obtain gas sample out of shell 3 to enter gas absorption chamber
4, and quality testing is carried out to acquired gas sample in gas absorption chamber 4, the infrared light supply 2 is fixedly installed on described
On the inner wall of shell 3.Specifically, by the way that the gas mass flow meter to be installed on gas transport pipeline, gas enters gas
The shell 3 of mass flowmenter and when flowing through flow testing division, infrared sensor 6 is based on gas to lambert-ratio of infrared Absorption
The principle of your law can accurately measure CH4 (methane) and CnHm (other hydrocarbons in addition to methane) gas concentration simultaneously,
And the concentration of each gas component is calculated automatically, the structure is simple and is mountable on gas transport pipeline, in the mistake of gas transport
Comprehensive inspection to gas each component and its corresponding concentration can be realized in journey, not only saved check cost but also improved inspection
The precision looked into.
In the present embodiment, the infrared sensor 6 is the Miniature infrared gas sensor of dual-beam, the infrared light supply 2
For electrical modulation infrared light supply, the infrared sensor 6 includes the inspection for detecting the concentration for being used for each component part of detection gas
It surveys device and signal amplifier, the detector is electrically connected with the signal amplifier, the signal amplifier and the controller 7
Electrical connection, wherein the infrared sensor 6 of the dual-beam is based on gas to the principle of the Lambert-Beer's law of infrared Absorption
CH4 and CnHm gas concentration can be accurately measured simultaneously, and calculates the concentration of each gas component automatically.
In addition, in the present embodiment, being set in the gas absorption chamber 4 to further increase the detection accuracy in quality testing portion
There is optical filter 5, the optical filter 5 is set between the infrared light supply 2 and the infrared sensor 6, it is preferable that the optical filtering
Piece 5 selects highly sensitive optical filter, by be arranged optical filter 5, from infrared light supply 2 issue light line by optical filter 5 again into
Enter gas absorption chamber 4, the filtration to the infrared light supply entered in gas absorption chamber 4 is realized, to ensure that into gas
Light source in absorption chamber 4 is essentially infrared light, to further improve the detection accuracy in quality testing portion.
Further, the controller 7 is equipped with display screen, can be used for showing the measurement of flowmeter by the way that display screen is arranged
As a result with environmental parameter relevant in pipeline.Since the combustion gas being passed through in shell 3 is not necessarily under mark condition the (gas under mark condition
Parameter are as follows: pressure 101.325kPa, temperature are 0 DEG C), to measure in the case where marking condition each component of combustion gas and its corresponding
Concentration, in the present embodiment, the gas mass flow meter further includes the pressure sensing for detecting the pressure of 3 internal gas of shell
Device 9, the pressure sensor 9 are electrically connected with the controller 7, and the gas mass flow meter further includes for detecting shell 3
The temperature sensor 8 of the temperature of internal gas, the temperature sensor 8 are electrically connected with the controller 7, pass through pressure sensor
9 and temperature sensor 8 detect the pressure and temperature of the combustion gas inside shell 3 respectively, and by detected pressure value and temperature
Value is transferred to controller 7, and controller 7 converts under bid condition automatically, each component part of combustion gas and its corresponding concentration.
Further, the shell 3 is in hollow cylindrical shape, and the shell 3 includes air inlet and air outlet, air inlet
It is equipped with rectifier 1 at mouthful, by the way that rectifier 1 is arranged, the combustion gas of the disorder entered from the import of shell 3 can be adjusted to more to put down
Then steady combustion gas carries out quality testing to the more stable combustion gas by quality testing portion, quality testing portion can be improved
Detection accuracy.
In addition, the gas mass flow meter further includes attachment base, the controller 7 passes through the attachment base and the stream
The connection of meter ontology, can be by controller 7 and institute by the way that attachment base is arranged between the controller 7 and the flowmeter bodies
Flowmeter bodies opposing spaced apart is stated, can effectively be prevented entrained heat when the higher combustion gas of temperature flows through flowmeter bodies
Amount is transferred to controller 7, and then prevents controller 7 from breaking down due to overheat.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (9)
1. a kind of gas mass flow meter, which is characterized in that including flowmeter bodies and controller, the flowmeter bodies include
Shell and it is set to the intracorporal flow testing division for detection gas volume flow of shell, the quality testing portion and the control
Device electrical connection, the quality testing portion include being set to the intracorporal infrared sensor of the shell and infrared light supply, the infrared light
Source is oppositely arranged with the infrared sensor, and gas absorption chamber, the gas absorption chamber and the shell are connected on the shell
The inside of body is connected to, and the infrared sensor is set in the gas absorption chamber, and the infrared light supply is fixedly installed on described
On the inner wall of shell.
2. gas mass flow meter according to claim 1, which is characterized in that the controller is equipped with display screen.
3. gas mass flow meter according to claim 1, which is characterized in that the gas mass flow meter further includes being used for
The pressure sensor of the pressure of enclosure interior gas is detected, the pressure sensor is electrically connected with the controller.
4. gas mass flow meter according to claim 1, which is characterized in that the gas mass flow meter further includes being used for
The temperature sensor of the temperature of enclosure interior gas is detected, the temperature sensor is electrically connected with the controller.
5. gas mass flow meter according to claim 1, which is characterized in that the shell is in hollow cylindrical shape, institute
Stating shell includes air inlet and air outlet, and air inlet is equipped with rectifier.
6. gas mass flow meter according to claim 1, which is characterized in that optical filter is equipped in the gas absorption chamber,
The optical filter is set between the infrared light supply and the infrared sensor.
7. gas mass flow meter according to claim 1, which is characterized in that the infrared sensor is miniature infrared-gas
Sensor, the infrared light supply are electrical modulation infrared light supply.
8. gas mass flow meter according to claim 1, which is characterized in that the infrared sensor includes using for detecting
In the detector and signal amplifier of the concentration of each component part of detection gas, the detector is electrically connected with the signal amplifier
It connects, the signal amplifier is electrically connected with the controller.
9. gas mass flow meter according to claim 1, which is characterized in that the gas mass flow meter further includes connection
Seat, the controller are connect by the attachment base with the flowmeter bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821473252.6U CN208795306U (en) | 2018-09-07 | 2018-09-07 | A kind of gas mass flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821473252.6U CN208795306U (en) | 2018-09-07 | 2018-09-07 | A kind of gas mass flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208795306U true CN208795306U (en) | 2019-04-26 |
Family
ID=66209007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821473252.6U Active CN208795306U (en) | 2018-09-07 | 2018-09-07 | A kind of gas mass flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208795306U (en) |
-
2018
- 2018-09-07 CN CN201821473252.6U patent/CN208795306U/en active Active
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