CN110967079A - Plug-in type gas ultrasonic flowmeter with uniformly distributed gas flow - Google Patents
Plug-in type gas ultrasonic flowmeter with uniformly distributed gas flow Download PDFInfo
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- CN110967079A CN110967079A CN201911023456.9A CN201911023456A CN110967079A CN 110967079 A CN110967079 A CN 110967079A CN 201911023456 A CN201911023456 A CN 201911023456A CN 110967079 A CN110967079 A CN 110967079A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/662—Constructional details
Abstract
The invention discloses a plug-in type gas ultrasonic flowmeter with uniformly distributed airflow, which structurally comprises a metering display, a flow detection main body, a product nameplate, a flange plate, a fixed support and a power supply connection port, wherein the flange plate is hermetically connected with a pipeline, the flow detection main body is welded with the flange plate, the product nameplate and the flow detection main body are mutually buckled, and a gas rectification structure is arranged on the gas ultrasonic flowmeter, so that natural gas is uniformly distributed in a gas flow pipeline when entering the flow detection main body from the pipeline, the flow speed is stable, errors in ultrasonic signal receiving caused by turbulent flow phenomenon in the flow process of the gas are avoided, and the overall measurement precision of the flow of the natural gas is effectively improved.
Description
Technical Field
The invention relates to the field of flow instruments and meters, in particular to an inserted type gas ultrasonic flowmeter with uniformly distributed airflow.
Background
Along with the gradual deepening of the public environmental awareness, natural gas has become an important energy source for replacing coal-fired heating and power generation, and due to the fact that the scientific and technical level is continuously improved, various flowmeters appear, and an ultrasonic flowmeter cannot change the flowing state of fluid and cannot generate pressure loss, so that the natural gas flowmeter becomes a metering tool in a plurality of natural gas transportation processes, but the current technical consideration is not perfect, and the natural gas flowmeter has the following defects: the ultrasonic flowmeter converts electric energy into ultrasonic energy through the transducer during working and transmits the ultrasonic energy into natural gas fluid, ultrasonic signals received by the receiver are amplified by an electronic circuit and converted into electric signals representing flow rate to be displayed on a display, and because the diameter of a pipeline entering the flowmeter from the pipeline is increased in the flowing process of gas, the turbulent phenomenon exists, the ultrasonic received signals generate errors, and the integral measurement precision of the gas flow rate is influenced.
Disclosure of Invention
Aiming at the problems, the invention provides an inserted type gas ultrasonic flowmeter with uniformly distributed gas flow.
In order to achieve the purpose, the invention is realized by the following technical scheme: a plug-in type gas ultrasonic flowmeter with uniformly distributed airflow structurally comprises a metering display, a flow detection main body, product nameplates, flange plates, a fixed support and a power supply connection port, wherein the flange plates are provided with two flange plates which are respectively in sealing connection with a pipeline, the flow detection main body is welded with the flange plates together, the back surface of the product nameplate is buckled with the middle of the front surface of the flow detection main body, the bottom of the fixed support is in threaded connection with the upper surface of the flow detection main body and is mutually vertical to the flow detection main body, the bottom of the metering display is in threaded connection with the top end of the fixed support, the power supply connection port is positioned on the right side of the metering display and is electrically connected with the metering display, the flow detection main body consists of a detector shell, a downstream detection sensor, a gas rectification structure, a gas, the detector shell is the hollow cylinder structure, gas flow pipeline is horizontal through connection in the middle of the detector shell, low reaches detect the sensor and be the slope form nested in detector shell bottom, the upper reaches detect the sensor and install in detector shell upper surface and be parallel to each other with low reaches detect the sensor, gas rectification structure installs in the gas flow pipeline left and right sides.
As a further improvement of the invention, the gas rectification structure comprises a rectification outer cover, an even distributor, a compensation groove and a flow rate regulator, wherein the outer surface of the rectification outer cover is hermetically connected with the inner wall of a gas flow pipeline, the even distributor is nested in the middle of the rectification outer cover, the flow rate regulator is positioned on the right side of the rectification outer cover, and the compensation groove is arranged between the even distributor and the flow rate regulator.
As a further improvement of the invention, the uniform distributor consists of a flow guide rail, a uniform distributor shell, air distribution holes, an air distribution pipeline and a pushing block, wherein the air distribution pipeline is of a cylindrical structure and is in clearance fit with the rectification outer cover, the right end of the uniform distributor shell is abutted against the left side of the air distribution pipeline, the flow guide rail is uniformly distributed on the inner wall of the uniform distributor shell at equal intervals, the air distribution holes penetrate through the periphery of the air distribution pipeline, and the pushing block is of a circular truncated cone structure and has the left end integrated with the air distribution pipeline.
As a further improvement of the invention, the flow rate regulator consists of an air pressure driving device, a regulator main body and an exhaust structure, wherein the regulator main body is nested at the right side of the rectification outer cover, the periphery of the air pressure driving device is tightly buckled with the inner wall of the regulator main body, and the left side of the exhaust structure is mutually meshed with the right side of the air pressure driving device.
The pneumatic driving device is further improved by the invention, the pneumatic driving device consists of a driving disc, a driving disc fixing frame, a self-resetting spring, a pneumatic pushing groove and an adjusting guide rail, the periphery of the driving disc fixing frame is attached to the inner wall of the adjuster main body, the adjusting guide rail is of a fan-shaped structure and is embedded at the upper end and the lower end of the driving disc fixing frame, the upper end and the lower end of the driving disc are in clearance fit with the adjusting guide rail, the pneumatic pushing groove is uniformly distributed on the surface of the driving disc, and the left end and the right end of the self-resetting.
As a further improvement of the invention, the exhaust structure comprises adjusting blades, a driving buckle fixing frame, a driving buckle, an adjusting ring and a blade fixing seat, wherein the periphery of the driving buckle fixing frame is attached to the inner wall of the regulator main body, the adjusting ring is positioned in the middle of the driving buckle fixing frame and is in clearance fit with the driving buckle fixing frame, the driving buckle and the adjusting ring are buckled with each other, the blade fixing seat and the adjusting ring are mutually meshed and are of concentric circle structures, and the adjusting blades are uniformly distributed on the inner wall of the blade fixing seat in an annular array.
As a further improvement of the invention, the air pressure pushing grooves in the driving disc are communicated with each other through connecting grooves, and meanwhile, leftward inclined planes are arranged in the air pressure pushing grooves, so that air is uniformly distributed in the air pressure pushing grooves through the connecting grooves when entering the driving disc, and meanwhile, when the pressure is increased, the inclined planes of the air pressure pushing grooves push the driving disc to rotate.
As a further improvement of the invention, the adjusting blade encloses a round table-shaped structure, and the bottom of the adjusting blade is buckled with the blade fixing seat, so that the adjusting blade can be unfolded or retracted along the blade fixing seat, and can be unfolded when the air pressure is increased and retracted when the air pressure is smaller.
As a further improvement of the invention, the back of the air pressure pushing groove is buckled with the driving buckle.
The invention has the beneficial effects that: gaseous ultrasonic flowmeter is through installing gaseous rectification structure, when natural gas gets into the flow detection main part by the pipeline, makes natural gas evenly distributed in gas flow pipeline, and the velocity of flow is stable simultaneously, avoids gaseous turbulent phenomenon to appear at the flow in-process to lead to ultrasonic signal to receive and produces the error, the effectual whole measurement accuracy who promotes the natural gas flow.
When the gas rectifying structure is used, natural gas firstly enters the uniform distributor shell, is uniformly distributed along the flow guide rail and flows into the gas distribution pipeline, then the gas pressure pushes the gas distribution pipeline to draw the pushing block to move rightwards, the natural gas uniformly flows into the compensation groove through the gas distribution holes, the natural gas enters the gas pressure pushing groove after filling the compensation groove and pushes the driving disc to extrude and rotate, meanwhile, the driving buckle drives the adjusting ring to rotate and enables the adjusting blades to expand outwards, so that the flow velocity of the natural gas stably flows into the gas flow pipeline, the formation of turbulence in a gas detector is avoided, and the detection result of the ultrasonic flowmeter is improved.
Drawings
Fig. 1 is a schematic structural diagram of an inserted gas ultrasonic flowmeter with uniform gas flow distribution according to the invention.
Fig. 2 is a schematic sectional structural view of the flow rate detection body according to the present invention.
Fig. 3 is a schematic structural diagram of a gas rectification structure according to the present invention.
FIG. 4 is a schematic diagram of the construction of the applicator of the present invention.
Fig. 5 is a front view schematically showing the construction of the flow rate regulator of the present invention.
Fig. 6 is a schematic structural diagram of the pneumatic driving device viewed from the right.
FIG. 7 is a schematic diagram of the right view of the exhaust structure of the present invention.
In the figure: metering display-1, flow detection main body-2, product nameplate-3, flange-4, fixed support-5, power supply connection port-6, detector shell-2 a, downstream detection sensor-2 b, gas rectification structure-2 c, gas flow pipeline-2 d, upstream detection sensor-2 e, rectification cover-c 1, uniform distributor-c 2, compensation groove-c 3, flow rate regulator-c 4, flow guide track-c 21, uniform distributor shell-c 22, gas distribution hole-c 23, gas distribution pipeline-c 24, pushing block-c 25, pneumatic drive device-c 41, regulator main body-c 42, exhaust structure-c 43, drive disk-411, drive disk fixing frame-412, self-resetting spring-413, self-resetting spring-c, The pneumatic vane-type air compressor comprises an air pressure pushing groove-414, an adjusting guide rail-415, an adjusting vane-431, a driving buckle fixing frame-432, a driving buckle-433, an adjusting ring-434 and a vane fixing seat-435.
Detailed Description
In order to make the technical means, the original features, the achieved objects and the effects of the present invention easily understood, fig. 1 to 7 schematically show the structure of a gas ultrasonic flowmeter according to an embodiment of the present invention, and the present invention will be further described with reference to the following detailed description.
Examples
Referring to fig. 1-2, the present invention provides a plug-in ultrasonic gas flowmeter with uniformly distributed gas flow, which comprises a metering display 1, a flow detecting main body 2, a product nameplate 3, two flange plates 4, a fixing support 5 and a power supply connection port 6, wherein the two flange plates 4 are respectively connected with a pipeline in a sealing manner, the flow detecting main body 2 is welded with the flange plates 4, the back surface of the product nameplate 3 is buckled with the middle of the front surface of the flow detecting main body 2, the bottom of the fixing support 5 is connected with the upper surface of the flow detecting main body 2 in a threaded manner and is perpendicular to the flow detecting main body 2, the bottom of the metering display 1 is connected with the top end of the fixing support 5 in a threaded manner, the power supply connection port 6 is positioned at the right side of the metering display 1 and is electrically connected with the metering display 1, and the flow detecting main body 2, The gas flow detection device comprises a downstream detection sensor 2b, a gas rectification structure 2c, a gas flow pipeline 2d and an upstream detection sensor 2e, wherein the detector shell 2a is of a hollow cylindrical structure, the gas flow pipeline 2d is horizontally connected in the middle of the detector shell 2a in a penetrating mode, the downstream detection sensor 2b is embedded at the bottom of the detector shell 2a in an inclined mode, the upstream detection sensor 2e is installed on the upper surface of the detector shell 2a and is parallel to the downstream detection sensor 2b, and the gas rectification structure 2c is installed on the left side and the right side of the gas flow pipeline 2 d.
Referring to fig. 3-4, the gas rectification structure 2c is composed of a rectification housing c1, a uniform distributor c2, a compensation groove c3 and a flow rate regulator c4, wherein the outer surface of the rectification housing c1 is hermetically connected with the inner wall of the gas flow pipeline 2d, the uniform distributor c2 is nested in the middle of the rectification housing c1, the flow rate regulator c4 is located on the right side of the rectification housing c1, and the compensation groove c3 is installed between the uniform distributor c2 and the flow rate regulator c 4. Equipartition ware c2 comprises water conservancy diversion track c21, equipartition ware shell c22, gas distribution hole c23, gas distribution pipeline c24, bulldozing block c25, gas distribution pipeline c24 is the cylinder structure and adopts clearance fit with rectification dustcoat c1, equipartition ware shell c22 right-hand member and gas distribution pipeline c24 left side are close to, water conservancy diversion track c21 equidistance evenly distributed is in equipartition ware shell c22 inner wall, gas distribution hole c23 runs through and connects around gas distribution pipeline c24, bulldozing block c25 is round platform structure and left end and gas distribution pipeline c24 become the integrated structure.
Referring to fig. 5-7, the flow rate regulator c4 is composed of a pneumatic driving device c41, a regulator body c42 and an exhaust structure c43, the regulator body c42 is nested on the right side of the fairing cover c1, the periphery of the pneumatic driving device c41 is tightly buckled with the inner wall of the regulator body c42, and the left side of the exhaust structure c43 is meshed with the right side of the pneumatic driving device c 41. The pneumatic driving device c41 comprises a driving disc 411, a driving disc fixing frame 412, a self-reset spring 413, a pneumatic pushing groove 414 and an adjusting guide rail 415, wherein the periphery of the driving disc fixing frame 412 is attached to the inner wall of the adjuster main body c42, the adjusting guide rail 415 is of a fan-shaped structure and is nested at the upper end and the lower end of the driving disc fixing frame 412, the upper end and the lower end of the driving disc 411 are in clearance fit with the adjusting guide rail 415, the pneumatic pushing groove 414 is uniformly distributed on the surface of the driving disc 411, and the left end and the right end of the self-reset spring 413 are respectively abutted to. Exhaust structure c43 detains fixed bolster 432, drive by adjusting blade 431, drive and detains 433, adjusting ring 434, blade fixing base 435 and constitutes, the drive is detained fixed bolster 432 with the laminating of regulator main part c42 inner wall all around, adjusting ring 434 is located the drive and detains the fixed bolster 432 in the middle of and with the drive and detain fixed bolster 432 and adopt clearance fit, the drive is detained 433 and the mutual lock of adjusting ring 434, blade fixing base 435 and adjusting ring 434 intermeshing just are the concentric circle structure, it is annular array evenly distributed in blade fixing base 435 inner wall to adjust blade 431. The connecting slots are arranged between the air pressure pushing slots 414 in the driving disc 411, and meanwhile, the left inclined plane is arranged in the air pressure pushing slot 414, so that when air enters the driving disc 411, the air is uniformly distributed in the air pressure pushing slot 414 through the connecting slots, and when the pressure is increased, the inclined plane of the air pressure pushing slot 414 pushes the driving disc 411 to rotate. The adjusting blades 431 are enclosed into a truncated cone-shaped structure, and the bottoms of the adjusting blades are buckled with the blade fixing seats 435, so that the adjusting blades 431 can be unfolded or retracted along the blade fixing seats 435, and can be unfolded when the air pressure is increased and retracted when the air pressure is lower. The back of the air pressure pushing groove 414 is fastened with the driving buckle 433, so that when the air pressure is increased, the air pressure pushing groove 414 drives the driving buckle 433 to rotate.
In operation, natural gas enters the flow detection body 2 from the pipeline, and then ultrasonic signals are transmitted and received by the downstream detection sensor 2b and the upstream detection sensor 2e, and the measurement result is displayed by the other metering display 1.
After entering the gas rectifying structure 2c, natural gas is introduced into the gas flow pipeline 2d for detection, the natural gas firstly enters the uniform distributor shell c22, and then evenly distributed along the guide track c21 and flows into the gas distribution pipeline c24, so that the air pressure pushes the gas distribution pipeline c24 to pull the push block c25 to move rightwards, at the moment, natural gas evenly flows into the compensation groove c3 from the gas distribution hole c23 on the gas distribution pipeline c24, after the compensation groove c3 is filled with the natural gas, the gas enters the pneumatic pushing groove 414 and pushes the driving disc 411 to press the self-resetting spring 413 through the pneumatic pushing groove 414 while rotating clockwise along the adjustment guide 415, because the back of the driving disc 411 is tightly abutted to the driving buckle 433, the driving buckle 433 rotates through the adjusting ring 434 and pulls the adjusting vane 431 to expand outwards, so that the natural gas flows into the gas flow pipeline 2d uniformly and stably at a uniform flow rate, and the detection result of the ultrasonic flowmeter is effectively improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a bayonet gaseous ultrasonic flowmeter of distribution of gas flow, its structure includes measurement display (1), flow detection main part (2), product data plate (3), ring flange (4), fixed bolster (5), power connection port (6), its characterized in that:
the flange plate (4) is connected with the pipeline in a sealing mode, the flow detection main body (2) is welded with the flange plate (4), the product nameplate (3) is buckled with the flow detection main body (2), the fixed support (5) is perpendicular to the flow detection main body (2), the metering display (1) is connected with the fixed support (5) through threads, and the power supply connection port (6) is electrically connected with the metering display (1);
the flow detection main part (2) comprises detector shell (2a), low reaches detection sensor (2b), gaseous rectification structure (2c), gas flow pipeline (2d), upper reaches detection sensor (2e), detector shell (2a) is the cylinder structure, gas flow pipeline (2d) through connection is in the middle of detector shell (2a), low reaches detection sensor (2b) are the nested detector shell (2a) bottom of slope form, upper reaches detection sensor (2e) are installed in detector shell (2a) upper surface, gaseous rectification structure (2c) are installed in the gas flow pipeline (2d) left and right sides.
2. The inserted ultrasonic gas flow meter with uniform gas flow distribution of claim 1, wherein: the gas rectifying structure (2c) is composed of a rectifying outer cover (c1), a uniform distributor (c2), a compensation groove (c3) and a flow rate regulator (c4), wherein the rectifying outer cover (c1) is in sealed connection with a gas flow pipeline (2d), the uniform distributor (c2) is nested in the middle of the rectifying outer cover (c1), the flow rate regulator (c4) is located on the right side of the rectifying outer cover (c1), and the compensation groove (c3) is installed between the uniform distributor (c2) and the flow rate regulator (c 4).
3. The inserted ultrasonic gas flow meter with uniform gas flow distribution of claim 2, wherein: the uniform distributor (c2) comprises a flow guide track (c21), a uniform distributor shell (c22), air distribution holes (c23), an air distribution pipeline (c24) and a pushing block (c25), the air distribution pipeline (c24) and a rectification outer cover (c1) are in clearance fit, the uniform distributor shell (c22) is abutted against the air distribution pipeline (c24), the flow guide track (c21) is uniformly distributed on the inner wall of the uniform distributor shell (c22) at equal intervals, the air distribution holes (c23) are connected to the periphery of the air distribution pipeline (c24) in a penetrating mode, and the pushing block (c25) and the air distribution pipeline (c24) form an integrated structure.
4. The inserted ultrasonic gas flow meter with uniform gas flow distribution of claim 2, wherein: the flow rate regulator (c4) is composed of a pneumatic driving device (c41), a regulator body (c42) and an exhaust structure (c43), wherein the regulator body (c42) is nested on the right side of the fairing (c1), the pneumatic driving device (c41) is tightly buckled with the regulator body (c42), and the exhaust structure (c43) is meshed with the pneumatic driving device (c 41).
5. The inserted ultrasonic gas flow meter with uniform gas flow distribution of claim 4, wherein: the pneumatic driving device (c41) is composed of a driving disc (411), a driving disc fixing frame (412), a self-reset spring (413), a pneumatic pushing groove (414) and an adjusting guide rail (415), wherein the driving disc fixing frame (412) is attached to an adjuster main body (c42), the adjusting guide rail (415) is nested at the upper end and the lower end of the driving disc fixing frame (412), the driving disc (411) and the adjusting guide rail (415) are in clearance fit, the pneumatic pushing groove (414) is uniformly distributed on the surface of the driving disc (411), and the self-reset spring (413) is abutted to the driving disc (411).
6. The inserted ultrasonic gas flow meter with uniform gas flow distribution of claim 4, wherein: exhaust structure (c43) are detained fixed frame (432), drive by adjusting blade (431), drive and are detained (433), adjusting ring (434), blade fixing base (435) and constitute, the drive is detained fixed frame (432) and is laminated with regulator main part (c42), adjusting ring (434) and drive are detained fixed frame (432) and are adopted clearance fit, drive is detained (433) and adjusting ring (434) lock each other, blade fixing base (435) and adjusting ring (434) intermeshing, it is annular array evenly distributed in blade fixing base (435) inner wall to adjust blade (431).
7. The inserted ultrasonic gas flow meter with uniform gas flow distribution of claim 5, wherein: the air pressure pushing grooves (414) in the driving disc (411) are communicated with each other through connecting grooves, and meanwhile, leftward inclined planes are arranged in the air pressure pushing grooves (414).
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| CN201911023456.9A CN110967079B (en) | 2019-10-25 | 2019-10-25 | Plug-in type gas ultrasonic flowmeter with uniformly distributed gas flow |
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| CN201911023456.9A CN110967079B (en) | 2019-10-25 | 2019-10-25 | Plug-in type gas ultrasonic flowmeter with uniformly distributed gas flow |
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2019
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| JP2013127443A (en) * | 2011-11-17 | 2013-06-27 | Aichi Tokei Denki Co Ltd | Silencer, and ultrasonic flowmeter with silencer |
| CN204115787U (en) * | 2014-07-11 | 2015-01-21 | 河南精科仪表科技有限公司 | A kind of Ultrasonic Wave Flowmeter |
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Inventor after: Chen Xiongsheng Inventor after: Li Jing Inventor before: Li Jing |
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Effective date of registration: 20210421 Address after: 201616 Building 2 and 3, No. 1, Lane 733, pengfeng Road, Xiaokunshan Town, Songjiang District, Shanghai Applicant after: SHANGHAI CHINA NUCLEAR WEISI INSTRUMENT Co.,Ltd. Address before: 362100, Fujian City, Quanzhou province Huian County Town Industrial Zone Applicant before: Li Jing |
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Address after: 201616 Building 2 and 3, No. 1, Lane 733, pengfeng Road, Xiaokunshan Town, Songjiang District, Shanghai Patentee after: Shanghai Zhonghe Weisi Instrument Co.,Ltd. Address before: 201616 Building 2 and 3, No. 1, Lane 733, pengfeng Road, Xiaokunshan Town, Songjiang District, Shanghai Patentee before: SHANGHAI CHINA NUCLEAR WEISI INSTRUMENT Co.,Ltd. |