CN104316597A - Sensor and gas/solid two-phase flow concentration detection device and method - Google Patents
Sensor and gas/solid two-phase flow concentration detection device and method Download PDFInfo
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- CN104316597A CN104316597A CN201410654034.2A CN201410654034A CN104316597A CN 104316597 A CN104316597 A CN 104316597A CN 201410654034 A CN201410654034 A CN 201410654034A CN 104316597 A CN104316597 A CN 104316597A
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Abstract
The invention discloses a sensor and a gas/solid two-phase flow concentration detection device and method. The sensor comprises a measurement pipe and a plurality of ultrasonic measurement assemblies; at least two detection cross sections are arranged on the measurement pipe in the axial direction, the multiple ultrasonic measurement assemblies are arranged on the detection cross sections, and each ultrasonic measurement assembly comprises at least one transmitting device and at least one receiving device. The gas/solid two-phase flow concentration detection device comprises an information processing device and the sensor; the information processing device comprises a signal analysis module used for receiving and analyzing signals transmitted by the sensor, an information fusion module used for calculating the information obtained after analysis, an output module used for outputting the signals, a control module used for controlling signal transmission between the modules and a power module used for supplying power to control movement. By means of the sensor and the gas/solid two-phase flow concentration detection device and method, the technical problems of discontinuous measurement, high radioactivity, poor adaptability and flowing hinders can be solved.
Description
Technical field
The present invention relates to field of fluid measurement, particularly relate to a kind of sensor, gas/solid two-phase flow concentration detection apparatus and detection method.
Background technology
Along with the development of science and technology, the measurement of gas/solid two-phase flow parameter has a wide range of applications in commercial production and scientific research.In industrial processes, gas/solid two-phase flow system is related generally to, because the gas/solid popularity of two-phase flow coverage and the importance of application thereof have impelled developing rapidly of gas/solid two-phase flow area research work in the production fields such as chemical industry, metallurgy, electric power, Food processing, medicine.The accurate measurement of the various flow parameter of gas/solid two-phase flow and Real-Time Monitoring are all related to the stable operation of production run and the height of product quality.
The situation of gas/solid two-phase fluid system is complicated, see clearly phenomenon, obtain concept, Modling model also carries out the prediction of process, design and control, what first need to solve is exactly the test problems of gas/solid two-phase flow parameter, produce and steady production to ensure to optimize, make the steady direct motion of production status, produce huge economic benefit.Therefore the significant and actual demand of the detection method of gas/solid two-phase flow parameter is studied.
In prior art, for gas/solid two-phase flow concentration, mainly contain the electrical method based on electric capacity, electrostatic induction principle; Based on decay and the absorption process of ray, sound wave, microwave, optical principle; Based on the resonance method of the principles such as sound wave, microwave, nuclear-magnetism.
Structure is simple, sensitivity high owing to having for electrostatic transducer, and in the measurement of solid phase particles speed, obtain increasing attention, wherein most popular is cross-correlation method.But the measuring method that electrostatic measurement method has not yet had in the mass flow measurement of two-phase flow.Solid phase particles and probe collide the resonance signal produced and are also applied in the parameter measurement of gas/solid two-phase flow.
Resonance signal is obviously different from low-frequency vibration signal and other low-frequency disturbance of electrostatic transducer, has antijamming capability more better than electrostatic transducer.But resonance signal, both containing speed action component, again containing two-phase flow concentration components, can not measure single flow parameter effectively.
Therefore, how to research and develop a kind ofly can realize continuous coverage, "dead", cost is low, strong adaptability and the sensor of without hindrance flowing, gas/solid two-phase flow concentration detection apparatus and detection method, just becomes technical matters urgently to be resolved hurrily.
Summary of the invention
The subject matter that the present invention solves is to provide a kind of sensor, gas/solid two-phase flow concentration detection apparatus and detection method, and to solve insurmountable continuous coverage, "dead", cost is low, strong adaptability and the technical matters of without hindrance flowing.
In order to solve the problems of the technologies described above, the invention discloses a kind of sensor, comprise measuring channel and multiple ultrasonic measurement assembly, at least two detection sectional plane are axially provided with at described measuring channel, multiple described ultrasonic measurement assembly is arranged in each described detection sectional plane, and each described ultrasonic measurement assembly comprises at least one emitter and at least one receiving trap.
Further, wherein, being arranged in the same detection sectional plane of described measuring channel of described emitter and receiving trap interval.
Further, wherein, the first flange and the second flange is respectively equipped with at the two ends of described measuring channel.
The invention also discloses a kind of gas/solid two-phase flow concentration detection apparatus, comprise signal conditioning package and the sensor.
Further, wherein, described signal conditioning package is arranged at the outside of described measuring channel.
Further, wherein, described signal conditioning package comprises: the signal transmitted for receiving sensor and analyze this signal signal analyse block, for calculating the information fusion module of gained information by analysis, the output module for being exported by described signal, the control module being used for controlling each module above-mentioned Signal transmissions each other and being used for for control action provides the power module of electric energy.
Further, wherein, described power module is DC12V power supply or DC24V power supply.
In addition, present invention also offers a kind of gas/solid two-phase flow concentration detection method, comprise the following steps:
Step one: when gas/solid two-phase flow flows through measuring channel, the emitter in ultrasonic measurement assembly launches ultrasound wave in measuring channel;
Step 2: receiving trap receives the mechanical oscillation signal of described ultrasound wave by matching with concentration during gas/solid two-phase flow, converts the electric flux matched with described gas/solid two-phase flow concentration to by described mechanical oscillation signal;
Step 3: described electric energy conversion is become the different electric signal matched from described gas/solid two-phase flow concentration by described receiving trap;
Step 4: the electric signal of described ultrasonic measurement component detection is carried out analysis through described information analysis module and provides the gas/solid two-phase flow concentration reference value of detection sectional plane by signal conditioning package;
Step 5: the gas/solid two-phase flow concentration reference value different detection sectional plane produced carries out, after information convergence analysis, concentration data result is transferred to output module through information fusion module.
Further, wherein, described electric signal is controlled change and transmit by control module.
Compared with prior art, a kind of sensor of the present invention, gas/solid two-phase flow concentration detection apparatus and detection method, reach following effect:
1, sensor of the present invention, continuous coverage can be realized, this sensor comprises measuring channel and ultrasonic measurement assembly, is axially provided with at least two detection sectional plane at measuring channel, and multiple described ultrasonic measurement assembly is arranged in each described detection sectional plane.
2, gas/solid two-phase flow concentration detection apparatus of the present invention, by the process of signal conditioning package to ultrasonic measurement assembly obtaining information, be given by the concentration of gas/solid two-phase flow fluid in measuring channel, this device fast response time, radioactivity, sensitivity evenly, strong adaptability and without hindrance flowing.
3, sensor of the present invention gentle/fixed double phase flow concentration detection apparatus with low cost, structure is simple, applied widely, security performance good.
4, gas/solid two-phase flow concentration detection method of the present invention, measuring method is simple, and measuring accuracy is high, can measure multiple flow parameter easily, improves metering and management level, reduces the equipment such as separation, control, increases economic efficiency.
Certainly, implement arbitrary product of the present invention must not necessarily need to reach above-described all technique effects simultaneously.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the sensor of the embodiment of the present invention 1, the structural representation of gas/solid two-phase flow concentration detection apparatus;
Fig. 2 is the sensor of the embodiment of the present invention 1, the axial front view of gas/solid two-phase flow concentration detection apparatus;
Fig. 3 is the sectional view in the sensor measurement cross section of the embodiment of the present invention 1;
Fig. 4 is the control module graph of a relation of the gas/solid two-phase flow concentration detection apparatus of the embodiment of the present invention 1.
Embodiment
Graphic and embodiment below will be coordinated to describe embodiments of the present invention in detail, by this to the present invention how application technology means solve technical matters and the implementation procedure reaching technology effect can fully understand and implement according to this.
Embodiment 1
Be the structural representation of the sensor of the present embodiment 1 and axial front view as illustrated in fig. 1 and 2, comprise measuring channel 1 and multiple ultrasonic measurement assembly 3, at least two detection sectional plane are axially provided with at described measuring channel 1, multiple ultrasonic measurement assembly 3 is arranged in each described detection sectional plane, and each described ultrasonic measurement assembly 3 comprises emitter 31 and receiving trap 32.
As shown in Figure 3, in the same detection sectional plane being arranged at described measuring channel 1 at described emitter 31 and receiving trap 32 interval, shape webbed detection distribution cross section, to detect the gas/solid two-phase flow concentration by measuring cross section.The present embodiment 1 adopts interval to arrange the position of emitter 31 and receiving trap 32, but be not limited to this kind of mounting means in the specific implementation, two receiving traps 32 can also be set every two emitters 31, the mounting means of described ultrasonic measurement assembly 3 can be specifically set as the case may be.
Particularly, described receiving trap 32 comprises ceramic vibrator transducer and amplifying circuit, the mechanical oscillation signal of described ceramic vibrator receive MUT ultrasound wave by matching with concentration during gas/solid two-phase flow, converts the electric flux matched with described gas/solid two-phase flow concentration to by described mechanical oscillation signal; Described electric energy conversion is become the different electric signal matched from described gas/solid two-phase flow concentration by described amplifying circuit.In addition, the first flange 4 and the second flange 5 is respectively equipped with at the two ends of described measuring channel.
As illustrated in fig. 1 and 2, the present embodiment 1 additionally provides a kind of gas/solid two-phase flow concentration detection apparatus, comprises sensor and signal conditioning package 2.Described signal conditioning package 2 is arranged at the outside of described measuring channel 1 and one end of close described second flange 5.Certainly, described signal conditioning package 2 can be installed on other position, and described signal conditioning package 2 is installed on the one end near described second flange 5 by the present embodiment, is not limited to this kind of mode during actual production.
As shown in Figure 4, described signal conditioning package 2 comprises: the signal transmitted for receiving sensor and analyze this signal signal analyse block 22, for calculating the information fusion module 24 of gained information by analysis, the output module 25 for being exported by described signal, the control module 21 being used for controlling each module above-mentioned Signal transmissions each other and being used for for control action provides the power module 23 of electric energy.Described power module 23 can be DC12V power supply or DC24V power supply, can be also other power supply, determine as the case may be.Power module 23 provides power supply for described control module 21, signal analyse block 22, information fusion module 24 and output module 25.
The output information etc. of pulse train frequency, dutycycle, sparse modulation and counting that described control module 21 mainly sends emitter 31, the Signal transmissions of receiving trap 32, the signal analysis of signal analyse block 22, the information fusion algorithm of information fusion module 24 and output module 25 controls, control module 21 is arranged at the inside of described signal conditioning package 2 by the present embodiment, when actual production, can be arranged on distance host, Wireless remote control is carried out to described sensor.
In addition, the present embodiment 1 additionally provides a kind of gas/solid two-phase flow concentration detection method, comprises the following steps:
Step one: when gas/solid two-phase flow flows through measuring channel 1, emitter 31 launches ultrasound wave in measuring channel 1;
Step 2: receiving trap 32 receives the mechanical oscillation signal of ultrasound wave by matching with concentration during gas/solid two-phase flow, converts the electric flux matched with described gas/solid two-phase flow concentration to by described mechanical oscillation signal;
Step 3: described electric energy conversion is become the different electric signal matched from described gas/solid two-phase flow concentration by receiving trap 32;
Step 4: the electric signal that described ultrasonic measurement assembly 3 detects by signal conditioning package 2 carries out analysis through described information analysis module 22 and provides the gas/solid two-phase flow concentration reference value of detection sectional plane;
Step 5: the gas/solid two-phase flow concentration information different detection sectional plane produced carries out, after information fusion module 24 is analyzed, concentration data result is transferred to output module 25.
Preferably, the whole process of gas/solid two-phase flow concentration detection method is controlled to change by control module 21 by described electric signal and transmits.
The principle of the gas/solid two-phase flow concentration detection method described in the present embodiment 1 is: when ultrasound wave enter the ultrasound wave producing mechanical vibration after gas/solid two-phase flow in gas/solid fluid propagate in detected fluid time, concentration in gas/solid two-phase flow fluid produces certain impact to acoustic characteristic and hyperacoustic propagation, thus affects ultrasound signal receipt signal magnitude.According to multiple ultrasound wave Received signal strength size and at sensor section distributing position, by information fusion algorithm, determine the concentration of gas/solid two-phase flow fluid.
Compared with prior art, a kind of sensor of the present invention, gas/solid two-phase flow concentration detection apparatus and detection method, reach following effect:
1, sensor of the present invention, can realize continuous coverage, and this sensor comprises measuring channel and ultrasonic measurement assembly, is axially provided with at least two detection sectional plane at measuring channel, and each described detection sectional plane is provided with multiple ultrasonic measurement assembly.
2, gas/solid two-phase flow concentration detection apparatus of the present invention, by the process of signal conditioning package to ultrasonic measurement assembly obtaining information, draw the concentration by two-phase flow fluid gas/solid in measuring channel, this device fast response time, radioactivity, sensitivity evenly, strong adaptability and without hindrance flowing.
3, sensor of the present invention gentle/fixed double phase flow concentration detection apparatus with low cost, structure is simple, applied widely, security performance good.
4, gas/solid two-phase flow concentration detection method of the present invention, measuring method is simple, and measuring accuracy is high, can measure multiple flow parameter easily, improves metering and management level, reduces the equipment such as separation, control, increases economic efficiency.
Certainly, implement arbitrary product of the present invention must not necessarily need to reach above-described all technique effects simultaneously.
Above-mentioned explanation illustrate and describes some preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (9)
1. a sensor, comprise measuring channel and multiple ultrasonic measurement assembly, it is characterized in that, at least two detection sectional plane are axially provided with at described measuring channel, multiple described ultrasonic measurement assembly is arranged in each described detection sectional plane, and each described ultrasonic measurement assembly comprises at least one emitter and at least one receiving trap.
2. sensor according to claim 1, is characterized in that, being arranged in the same detection sectional plane of described measuring channel of described emitter and receiving trap interval.
3. sensor according to claim 1, is characterized in that, is respectively equipped with the first flange and the second flange at the two ends of described measuring channel.
4. a gas/solid two-phase flow concentration detection apparatus, comprises the sensor according to any one of signal conditioning package and claim 1-3.
5. gas/solid two-phase flow concentration detection apparatus according to claim 4, it is characterized in that, described signal conditioning package is arranged at the outside of described measuring channel.
6. gas/solid two-phase flow concentration detection apparatus according to claim 5, it is characterized in that, described signal conditioning package comprises: the signal transmitted for receiving sensor and analyze this signal signal analyse block, for calculating the information fusion module of gained information by analysis, the output module for being exported by described signal, the control module being used for controlling each module above-mentioned Signal transmissions each other and being used for for control action provides the power module of electric energy.
7. gas/solid two-phase flow concentration detection apparatus according to claim 6, is characterized in that, described power module is DC12V power supply or DC24V power supply.
8. a gas/solid two-phase flow concentration detection method, is characterized in that, comprise the following steps:
Step one: when gas/solid two-phase flow flows through measuring channel, the emitter in ultrasonic measurement assembly launches ultrasound wave in measuring channel;
Step 2: receiving trap receives the mechanical oscillation signal of described ultrasound wave by matching with concentration during gas/solid two-phase flow, converts the electric flux matched with described gas/solid two-phase flow concentration to by described mechanical oscillation signal;
Step 3: described electric energy conversion is become the different electric signal matched from described gas/solid two-phase flow concentration by described receiving trap;
Step 4: the electric signal of described ultrasonic measurement component detection is carried out analysis through described information analysis module and draws the gas/solid two-phase flow concentration reference value of detection sectional plane by signal conditioning package;
Step 5: the gas/solid two-phase flow concentration reference value different detection sectional plane produced carries out, after information convergence analysis, concentration data result is transferred to output module through information fusion module.
9. gas/solid two-phase flow concentration detection method according to claim 8, is characterized in that, described electric signal is controlled change and transmit by control module.
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