CN208795294U - Turbine flowmeter capable of detecting gas quality - Google Patents
Turbine flowmeter capable of detecting gas quality Download PDFInfo
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- CN208795294U CN208795294U CN201821472019.6U CN201821472019U CN208795294U CN 208795294 U CN208795294 U CN 208795294U CN 201821472019 U CN201821472019 U CN 201821472019U CN 208795294 U CN208795294 U CN 208795294U
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- gas
- shell
- sensor
- flow
- turbine flowmeter
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- 238000001514 detection method Methods 0.000 claims abstract description 27
- 238000012372 quality testing Methods 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims description 19
- 238000012360 testing method Methods 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 50
- 239000000567 combustion gas Substances 0.000 description 30
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 15
- 239000003345 natural gas Substances 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to a turbine flowmeter of detectable gas quality, including flowmeter body and controller, the flowmeter body includes the casing, set up the flow detection portion that is used for detecting gas volume flow in the casing and set up the quality detection portion that is used for detecting gas mass flow in the casing, flow detection portion and quality detection portion respectively with the controller electricity is connected, quality detection portion including set up in infrared sensor and infrared light source in the casing, infrared light source with infrared sensor sets up relatively. The utility model discloses a flow detection portion detects the volume flow through the inside gas of casing, detects the gaseous concentration of CH4 and CnHm in the gas through the casing inside through the quality testing part respectively, with the concentration of each component part of volume flow and gas that detect as the input, and transmit to the controller, thereby the controller can measure the calorific value of gas through the enlarged integration of high accuracy, and then realize the energy measurement to gas.
Description
Technical field
The utility model relates to field of flow meters, and in particular to a kind of turbine flowmeter of detectable gas quality.
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 multiple devices cooperating is usually required for the energy meter of combustion gas in the prior art, therefore increase combustion gas
The cost of energy meter, and since multiple devices participate in jointly, increase the error of energy meter.
Utility model content
The utility model provides a kind of turbine flowmeter of detectable gas quality, can simultaneously detection gas volume flow
Amount and mass flow, and then realize the energy meter to gas.
To achieve the above object, the utility model provides a kind of turbine flowmeter of detectable gas quality, including stream
Meter ontology and controller, the flowmeter bodies include shell, to be set to shell intracorporal for detection gas volume flow
Flow testing division is used for the quality testing portion of detection gas mass flow, the flow testing division and quality with being set in shell
Test section is electrically connected with the controller respectively, the quality testing portion include be set to the intracorporal infrared sensor of the shell and
Infrared light supply, the infrared light supply are oppositely arranged with the infrared sensor.
Preferably, the flow testing division includes impeller and sensor module, the impeller and the sensor
Component electrical connection, the sensor module are electrically connected with the controller.
Preferably, gas absorption chamber is connected on the shell, the gas absorption chamber is interior with the shell
Portion's connection, the infrared sensor are set in the gas absorption chamber, and the infrared light supply is fixedly installed on the shell
On inner wall.
Preferably, the sensor module includes that the flow for detecting the volume flow of enclosure interior gas passes
Sensor, the flow sensor are electrically connected with the impeller.
Preferably, the sensor module includes the pressure sensor for detecting the pressure of enclosure interior gas
With the temperature sensor of the temperature for detecting enclosure interior gas.
Preferably, the shell is in hollow cylindrical shape, and the inner wall of the impeller and the shell can be rotated
It connects and is coaxially disposed with the shell, the shell includes air inlet and air outlet, the close air inlet of the impeller
Side is connected with preceding rectifier.
Preferably, the close air outlet side of the impeller is connected with rear rectifier.
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.
A kind of turbine flowmeter of detectable gas quality described in above-mentioned technical proposal is detected logical by flow testing division
The volume flow for crossing the combustion gas of enclosure interior Jian Ce not pass through the CH4 in the combustion gas of enclosure interior by quality detection section
With the concentration of CnHm gas, volume flow detected and the concentration of each component part of combustion gas as input and are transmitted to control
Device processed, controller accurately measure the calorific value of combustion gas by high-precision amplification integrating, and then realize to gas
Energy meter.
Detailed description of the invention
Such as the internal structure cross-sectional view that Fig. 1 is the utility model.
Wherein: 1, preceding rectifier；2, impeller；3, rear rectifier；4, infrared light supply；5, shell；6, gas absorption chamber；7, red
Outer sensor；8, controller；9, flow and temperature sensor；10, pressure sensor；11, optical filter.
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.
As shown in Figure 1, being a kind of turbine flowmeter of detectable gas quality provided by the utility model, including flow
Count ontology and controller 8, the flowmeter bodies include shell 5, be set in shell 5 for detection gas volume flow
Flow testing division is used for the quality testing portion of detection gas mass flow, the flow testing division and matter with being set in shell 5
Amount test section is electrically connected with the controller 8 respectively, and the quality testing portion includes the infrared sensing being set in the shell 5
Device 7 and infrared light supply 4, the infrared light supply 4 are oppositely arranged with the infrared sensor 7.Specifically, the present embodiment passes through flow
Test section detection, Jian Ce be by inside shell 5 by quality detection section by the volume flow of the combustion gas inside shell 5
The concentration of CH4 (methane) and CnHm (other hydrocarbons in addition to methane) gas in combustion gas, by volume detected
The concentration of flow and each component part of combustion gas is accumulated as inputting and being transmitted to controller 8, controller 8 by high-precision amplification
It calculates so as to accurately measure the calorific value of combustion gas, to realize the energy meter to gas.
In the present embodiment, the flow testing division includes impeller 2 and sensor module, the impeller 2 and the sensor
Component electrical connection, the sensor module are electrically connected with the controller 8, it is preferable that the sensor module includes for examining
The flow sensor of the volume flow of 5 internal gas of shell is surveyed, the flow sensor is electrically connected with the impeller 2, specifically,
When combustion gas is passed through shell 5 by impeller 2, impeller 2 is rotated, the rotation that the flow sensor passes through detection impeller 2
Calculated result is transferred to controller 8 to calculate the volume flow of combustion gas by circle number.
Further, gas absorption chamber 6 is connected on the shell 5, the gas absorption chamber 6 is interior with the shell 5
Portion's connection, the infrared sensor 7 are set in the gas absorption chamber 6, wherein the effect of gas absorption chamber 6 is from shell 5
Interior acquisition gas sample enters gas absorption chamber 6, and carries out quality inspection to acquired gas sample in gas absorption chamber 6
It surveys, the infrared light supply 4 is fixedly installed on the inner wall of the shell 5, it is preferable that the infrared sensor 7 is dual-beam
Miniature infrared gas sensor, the infrared light supply 4 are electrical modulation infrared light supply, and the infrared sensor 7 includes for detecting
The detector and signal amplifier of concentration for each component part of detection gas, the detector and signal amplifier electricity
Connection, the signal amplifier are electrically connected with the controller 8, wherein the infrared sensor 7 of the dual-beam is based on gas pair
The principle of the Lambert-Beer's law of infrared Absorption can accurately measure CH4 and CnHm gas concentration simultaneously, and calculate each gas automatically
The concentration of body component.
Further, marked under condition since the combustion gas being passed through in shell 5 is not necessarily in (gas parameter under mark condition are as follows:
Pressure is 101.325kPa, and temperature is 0 DEG C), therefore controller 8 is being needed before carrying out flow measurement to combustion gas by quality testing portion
The volume flow of detected combustion gas is converted into the volume flow under mark condition, and in the present embodiment, the sensor module includes
For detecting the pressure sensor 10 of the pressure of 5 internal gas of shell and the temperature of the temperature for detecting 5 internal gas of shell
Sensor detects the pressure and temperature of the combustion gas inside shell 5, respectively by pressure sensor 10 and temperature sensor with quality
The temperature of combustion gas detected by the volume flow of combustion gas detected by test section, temperature sensor, 10 institute of pressure sensor
The pressure of the combustion gas detected is calculated by controller 8 and is passed through inside shell 5 as inputting and being transmitted to controller 8 jointly
Volume flow of the combustion gas in the case where marking condition passed through by the volume flow of the combustion gas under mark condition and the concentration of combustion gas component
It is high-precision to amplify integrating so as to accurately measure the calorific value of combustion gas, it is preferable that in the present embodiment, by the flow sensing
Device and temperature sensor are integrated into flow and temperature sensor 9.
In addition, for the detection accuracy by impeller 2 to improve flow testing division for making combustion gas steady ordered, the present embodiment
In, the shell 5 is in hollow cylindrical shape, the inner wall of the impeller 2 and the shell 5 be rotatably connected and with the shell
5 coaxial arrangements, wherein the inner wall of 2 bearing of impeller and shell 5 is rotatably connected, and the shell 5 includes air inlet and outlet air
Mouthful, the impeller 2 is connected with preceding rectifier 1 close to the air inlet side, by rectifier 1 before being arranged, so that into shell
The combustion gas of the disorder of body 5 is converted into the combustion gas of steady ordered before through blade, to improve the detection essence of flow testing division
Degree.It further, is the detection accuracy by quality testing portion to improve quality testing portion for making combustion gas steady ordered, this implementation
In example, the impeller 2 is connected with rear rectifier 3 close to the air outlet side, and combustion gas passes through after impeller 2 due to impeller 2
Effect, and become the gas of disorder, the combustion gas for the disorder flowed out from impeller 2 is again converted to by rectifier 3 after setting
The combustion gas of steady ordered, then again by quality testing portion, to improve the detection accuracy in quality testing portion.
It further, is the detection accuracy for further increasing quality testing portion, in the present embodiment, the gas absorption chamber 6
Interior to be equipped with optical filter 11, the optical filter 11 is set between the infrared light supply 4 and the infrared sensor 7, it is preferable that institute
It states optical filter 11 and selects highly sensitive optical filter 11, by the way that optical filter 11 is arranged, the light line issued from infrared light supply 4 is through filtering
Mating plate 11 enters back into gas absorption chamber 6, the filtration to the infrared light supply 4 entered in gas absorption chamber 6 is realized, to guarantee
The light source entered in gas absorption chamber 6 is essentially infrared light, to further improve the detection accuracy in quality testing portion.
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 (10)
1. a kind of turbine flowmeter of detectable gas quality, which is characterized in that including flowmeter bodies and controller, the stream
Meter ontology includes shell, is set to the intracorporal flow testing division for detection gas volume flow of shell and is set in shell
For the quality testing portion of detection gas mass flow, the flow testing division and quality detection section be not electric with the controller
Connection, the quality testing portion include being set to the intracorporal infrared sensor of the shell and infrared light supply, the infrared light supply with
The infrared sensor is oppositely arranged.
2. the turbine flowmeter of detectable gas quality according to claim 1, which is characterized in that the flow testing division packet
Impeller and sensor module are included, the impeller is electrically connected with the sensor module, the sensor module and the controller
Electrical connection.
3. the turbine flowmeter of detectable gas quality according to claim 1, which is characterized in that be connected on the shell
Gas absorption chamber, the gas absorption chamber are connected to the inside of the shell, and the infrared sensor is set to the gas and inhales
Interior is received, the infrared light supply is fixedly installed on the inner wall of the shell.
4. the turbine flowmeter of detectable gas quality according to claim 2, which is characterized in that the sensor module packet
The flow sensor of the volume flow for detecting enclosure interior gas is included, the flow sensor is electrically connected with the impeller.
5. the turbine flowmeter of detectable gas quality according to claim 1, which is characterized in that the sensor module packet
The temperature for including the pressure sensor of the pressure for detecting enclosure interior gas and the temperature for detecting enclosure interior gas passes
Sensor.
6. the turbine flowmeter of detectable gas quality according to claim 2, which is characterized in that the shell is in hollow
The inner wall of cylindrical shape, the impeller and the shell is rotatably connected and is coaxially disposed with the shell, and the shell includes
Air inlet and air outlet, the impeller are connected with preceding rectifier close to the air inlet side.
7. the turbine flowmeter of detectable gas quality according to claim 6, which is characterized in that the close institute of the impeller
It states air outlet side and is connected with rear rectifier.
8. the turbine flowmeter of detectable gas quality according to claim 3, which is characterized in that in the gas absorption chamber
Equipped with optical filter, the optical filter is set between the infrared light supply and the infrared sensor.
9. the turbine flowmeter of detectable gas quality according to claim 3, which is characterized in that the infrared sensor is
Miniature infrared gas sensor, the infrared light supply are electrical modulation infrared light supply.
10. the turbine flowmeter of detectable gas quality according to claim 1, which is characterized in that the infrared sensor
Including for detect be used for each component part of detection gas concentration detector and signal amplifier, the detector with it is described
Signal amplifier electrical connection, the signal amplifier are electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821472019.6U CN208795294U (en) | 2018-09-07 | 2018-09-07 | Turbine flowmeter capable of detecting gas quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821472019.6U CN208795294U (en) | 2018-09-07 | 2018-09-07 | Turbine flowmeter capable of detecting gas quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208795294U true CN208795294U (en) | 2019-04-26 |
Family
ID=66208934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821472019.6U Active CN208795294U (en) | 2018-09-07 | 2018-09-07 | Turbine flowmeter capable of detecting gas quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208795294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955780A (en) * | 2018-09-07 | 2018-12-07 | 广州南控自动化设备有限公司 | Turbine flowmeter capable of detecting gas quality |
-
2018
- 2018-09-07 CN CN201821472019.6U patent/CN208795294U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955780A (en) * | 2018-09-07 | 2018-12-07 | 广州南控自动化设备有限公司 | Turbine flowmeter capable of detecting gas quality |
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