CN114485821A - Ultrasonic flowmeter without front straight pipe section - Google Patents
Ultrasonic flowmeter without front straight pipe section Download PDFInfo
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- CN114485821A CN114485821A CN202210212140.XA CN202210212140A CN114485821A CN 114485821 A CN114485821 A CN 114485821A CN 202210212140 A CN202210212140 A CN 202210212140A CN 114485821 A CN114485821 A CN 114485821A
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- rectifying
- ultrasonic
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- hole
- rectifier
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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
- G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses an ultrasonic flowmeter without a preposed straight pipe section; the method comprises the following steps: the ultrasonic flowmeter, ultrasonic flowmeter's top is provided with the display, ultrasonic flowmeter's inside is provided with the measurement chamber, ultrasonic flowmeter's entry end is provided with leading rectifying disc and the rectifying mechanism that rearmounted rectifying part constitutes. The vertical grating and the horizontal grating provided by the invention greatly improve the flow field of fluid, and can rectify vortex and turbulent flow in the fluid, thereby improving the measurement stability and accuracy of the ultrasonic transducer; the conical lug in the middle of the first rectifying disc plays a role in diversion, and meanwhile, the first rectifying hole and the second rectifying hole in the first rectifying disc can redirect fluid through impact, so that radial pulsating flow caused by turbulent flow is reduced.
Description
Technical Field
The invention relates to the technical field of ultrasonic flow meters, in particular to an ultrasonic flow meter without a front straight pipe section.
Background
The ultrasonic flowmeter is developed based on the principle that the propagation speed of ultrasonic waves in a flowing medium is equal to the vector sum of the average flow speed of a measured medium and the speed of sound waves in a static medium, mainly comprises a transducer and a converter, and has different types such as a Doppler method, a speed difference method, a beam offset method, a noise method and a correlation method.
However, the front straight pipe section is required to be arranged outside the ultrasonic flowmeter, the space requirement required by field installation is high, and the practicability is poor.
Disclosure of Invention
The invention aims to provide an ultrasonic flowmeter without a preposed straight pipe section, and aims to solve the problems that the preposed straight pipe section is required to be arranged outside the conventional ultrasonic flowmeter in the background art, the ultrasonic flowmeter is not designed to be installed in an embedded mode, the space requirement required by field installation of a gas ultrasonic flowmeter cannot be reduced, the practicability is poor, the radial pulsating flow caused by turbulent flow cannot be reduced in the conventional ultrasonic flowmeter, the accuracy of the ultrasonic flowmeter cannot be improved, and the practicability is poor.
In order to achieve the purpose, the invention provides the following technical scheme: a display is arranged at the top end of the ultrasonic flowmeter, a metering cavity is arranged in the ultrasonic flowmeter, and a rectifying mechanism consisting of a front rectifying disc and a rear rectifying component is arranged at the inlet end of the ultrasonic flowmeter;
the front rectifying disc is a first rectifier, and the rear rectifying part is a rear rectifying part with a cross section formed by a plurality of polygons.
Preferably, the front rectifier disc is a first rectifier provided with a plurality of through holes; the rear rectifying component is formed by a plurality of hexagons in the cross section.
Preferably, the rear rectifying component is a rectifying component formed by a vertical grating and a horizontal grating, the cross section of the rectifying component is formed by a plurality of grids, the vertical grating and the horizontal grating are arranged in a matching way, and the cross section of the rectifying component is arranged in an included angle (including an acute angle, a right angle or an obtuse angle).
Preferably, the post-rectifying fence includes: a vertical grid and a horizontal grid;
the first rectifier includes: the first rectifying disc, the first rectifying hole, the second rectifying hole and the conical lug;
the front rectifying disc and the rear rectifying part are connected through a splicing assembly in an inserting mode.
The measuring cavity is internally provided with a first ultrasonic sensor and a second ultrasonic sensor, and a sensor is arranged at the joint of the ultrasonic flowmeter and the display.
Preferably, the first rectifying disc is fixedly installed inside the metering cavity, a first rectifying hole and a second rectifying hole are formed inside the first rectifying disc, and a conical bump is fixedly installed on the left side of the first rectifying disc; the first rectifying hole and the second rectifying hole penetrate through the first rectifying disc, and are annularly distributed around the circle center of the first rectifying disc.
Preferably, the first ultrasonic sensor and the second ultrasonic sensor are both provided with two same ultrasonic sensors, and the first ultrasonic sensor and the second ultrasonic sensor are symmetrically distributed around the central line of the metering cavity.
Preferably, the first rectifier, the vertical grid and the horizontal grid are one of a metal material or a plastic material.
Compared with the prior art, the ultrasonic flowmeter without the front straight pipe section has the following beneficial effects:
the invention provides a rectifying mechanism consisting of a front rectifying disc and a rear rectifying part, the vertical grids and the horizontal grids greatly increase the flow area, the vortex and the turbulent flow in the fluid in front of the tube can be rectified, the state required by the work of the ultrasonic transducer is met, the measurement stability and the accuracy of the ultrasonic transducer are improved, the conical bump in the middle of the first rectifying disc plays a role in guiding flow, meanwhile, the first rectifying hole and the second rectifying hole in the first rectifying disc can redirect the fluid through impact, reduce radial pulsating flow caused by turbulent flow, improve the metering accuracy of the ultrasonic flowmeter, the gas ultrasonic flowmeter is provided with a rectifying structure at the gas inlet in an embedded manner, the rectifying structure can replace the traditional preposed straight pipe section and can rectify the vortex and turbulent flow of the pipeline fluid, therefore, the state required by the work of the ultrasonic transducer is met, and the space requirement required by the field installation of the gas ultrasonic flowmeter is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a schematic perspective view of a first rectifier according to the present invention;
FIG. 5 is a schematic view of the mounting structure of the first rectifier and the post-rectifying mechanism of the present invention;
FIG. 6 is a perspective view of the vertical and horizontal grids of the present invention;
fig. 7 is a side view of an assembled section of the vertical and horizontal grates of the invention.
Fig. 8 is a schematic view of the rear rectifying member of the present invention having a honeycomb cross section.
In the figure: 1. an ultrasonic flow meter; 2. a display; 5. a metering chamber; 6. a first rectifier; 601. a first rectifying disk; 602. a first flow straightening hole; 603. a second flow straightening orifice; 604. a conical projection; 7. a vertical grid; 8. a horizontal grid; 9. a honeycomb rectifier; 11. splicing the components; 12. a first ultrasonic sensor; 13. a second ultrasonic sensor; 14. a sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-8, the present embodiment relates to an ultrasonic flowmeter without a front straight pipe section, which includes an ultrasonic flowmeter 1, a display 2 is disposed at a top end of the ultrasonic flowmeter 1, a metering cavity 5 is disposed inside the ultrasonic flowmeter 1, and a rectifying mechanism composed of a front rectifying disc and a rear rectifying component is disposed at an inlet end of the ultrasonic flowmeter 1;
the front rectifier disc is a first rectifier 6 provided with a plurality of through holes; the rear rectifying component is a rear honeycomb rectifier 9 with a honeycomb structure (formed by a plurality of hexagons) in cross section.
The flow area is increased by the rear rectifying component, so that the eddy and turbulent flow in the fluid in front of the tube can be stabilized, the state required by the work of the ultrasonic transducer is met, and the measurement stability and accuracy of the ultrasonic transducer are improved;
the first rectifier 6 includes: a first flow straightening disk 601, a first flow straightening hole 602, a second flow straightening hole 603 and a conical bump 604;
the first rectifier 6 and the rear rectifying component are connected in an inserting mode through the splicing component 11, the splicing component 11 can be used for rapidly assembling the first rectifier 6 and the rear rectifying component, and the operation is simple and the installation is convenient;
a first ultrasonic sensor 12 and a second ultrasonic sensor 13 are arranged in the metering cavity 5, and a sensor 14 is arranged at the joint of the ultrasonic flowmeter 1 and the display 2;
the first rectifying disc 601 is fixedly arranged in the metering cavity 5, a first rectifying hole 602 and a second rectifying hole 603 are formed in the first rectifying disc 601, and a lug 604 is fixedly arranged on the left side of the first rectifying disc 601; the first rectifying hole 602 and the second rectifying hole 603 both penetrate through the first rectifying disc 601, the first rectifying hole 602 and the second rectifying hole 603 are annularly distributed around the center of the first rectifying disc 601, in the process of using the device, the bump 604 in the middle of the first rectifying disc 601 plays a role in guiding flow to reduce the pressure loss caused by the fluid impacting the rectifying disc, and meanwhile, the first rectifying hole 602 and the second rectifying hole 603 in the first rectifying disc 601 can guide the fluid again through impact to reduce the radial pulsating flow caused by the turbulent flow.
The first ultrasonic sensor 12 and the second ultrasonic sensor 13 are both provided with two same sensors, and the first ultrasonic sensor 12 and the second ultrasonic sensor 13 are symmetrically distributed around the central line of the metering cavity 5;
the first rectifier 6 and the rear rectifying component are made of metal materials, and the first rectifier 6 and the rear rectifying component are made of metal materials, so that the service life of the device can be prolonged.
Example 2
Referring to fig. 1-8, the present embodiment relates to an ultrasonic flowmeter without a front straight pipe section, which includes an ultrasonic flowmeter 1, a display 2 is disposed at a top end of the ultrasonic flowmeter 1, a metering cavity 5 is disposed inside the ultrasonic flowmeter 1, and a rectifying mechanism composed of a front rectifying disc and a rear rectifying component is disposed at an inlet end of the ultrasonic flowmeter 1;
the front rectifier disc is a first rectifier 6 provided with a plurality of through holes; the rear rectifying component is a rectifying component formed by a vertical grating 7 and a horizontal grating 8, the cross section of the rectifying component is formed by a plurality of square grids (formed by a plurality of quadrangles), and the vertical grating 7 and the horizontal grating 8 are arranged in an included angle (including an acute angle, a right angle and an obtuse angle);
the rear rectifier grid includes: a vertical grid 7 and a horizontal grid 8; the vertical grating 7 and the horizontal grating 8 greatly increase the flow area, can stabilize the vortex and the turbulent flow in the fluid in front of the pipe, meet the working state of the ultrasonic transducer and improve the measurement stability and the measurement accuracy of the ultrasonic transducer;
the first rectifier 6 includes: a first flow plate 601, a first flow regulation hole 602, a second flow regulation hole 603, and a conical projection 604;
the first rectifier 6, the vertical grating 7 and the horizontal grating 8 are connected through the splicing assembly 11 in an inserting mode, the splicing assembly 11 can be used for rapidly assembling the first rectifier 6, the vertical grating 7 and the horizontal grating 8, and the assembly method is simple to operate and convenient to install;
a first ultrasonic sensor 12 and a second ultrasonic sensor 13 are arranged in the metering cavity 5, and a sensor 14 is arranged at the joint of the ultrasonic flowmeter 1 and the display 2;
the first rectifying disc 601 is fixedly arranged in the metering cavity 5, a first rectifying hole 602 and a second rectifying hole 603 are formed in the first rectifying disc 601, and a lug 604 is fixedly arranged on the left side of the first rectifying disc 601; the first rectifying hole 602 and the second rectifying hole 603 both penetrate through the first rectifying disc 601, the first rectifying hole 602 and the second rectifying hole 603 are annularly distributed around the center of the first rectifying disc 601, in the process of using the device, the bump 604 in the middle of the first rectifying disc 601 plays a role in guiding flow to reduce the pressure loss caused by the fluid impacting the rectifying disc, and meanwhile, the first rectifying hole 602 and the second rectifying hole 603 in the first rectifying disc 601 can guide the fluid again through impact to reduce the radial pulsating flow caused by the turbulent flow.
The first ultrasonic sensor 12 and the second ultrasonic sensor 13 are both provided with two same sensors, and the first ultrasonic sensor 12 and the second ultrasonic sensor 13 are symmetrically distributed around the central line of the metering cavity 5;
the first rectifier 6, the vertical grid 7 and the horizontal grid 8 are made of metal materials, and the first rectifier 6, the vertical grid 7 and the horizontal grid 8 are made of plastic materials, so that the overall weight of the device can be reduced, and the production cost can also be reduced.
The working principle is as follows: the fluid enters the interior of the metering cavity 5 and passes through the metering cavity 5, the first ultrasonic sensor 12 and the second ultrasonic sensor 13 in the metering cavity 5 can detect the fluid, when the fluid passes through the first rectifier 6, the conical bump 604 in the middle of the first rectifying disc 601 plays a role in guiding the fluid and reduces the pressure loss caused by the fluid impacting the rectifying disc, meanwhile, the first rectifying hole 602 and the second rectifying hole 603 in the first rectifying disc 601 can guide the fluid again through impact and reduce the radial pulsating flow caused by the turbulent flow, the vertical grating 7 and the horizontal grating 8 greatly increase the flow area, the vortex and the turbulent flow in the fluid in front of the tube can be arranged into uniform speed to meet the working state of the ultrasonic transducer and improve the measuring stability and the accuracy of the ultrasonic transducer, and in the process of assembling the device, the first rectifier 6, the second rectifier 13 and the second rectifier 11 can be rapidly carried out by using the splicing assembly 11, The assembly of perpendicular grid 7 and horizontal grid 8, easy operation, simple to operate adopts first rectifier 6, perpendicular grid 7 and the horizontal grid 8 that the metal material made, but hoisting device's life adopts first rectifier 6, perpendicular grid 7 and the horizontal grid 8 that the plastic material made, can reduce the holistic weight of device, also can reduction in production cost, selects the diversification, and the practicality is higher.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. An ultrasonic flow meter without a leading straight pipe section, comprising an ultrasonic flow meter (1), characterized in that: the top end of the ultrasonic flowmeter (1) is provided with a display (2), a metering cavity (5) is arranged in the ultrasonic flowmeter (1), and the inlet end of the ultrasonic flowmeter (1) is provided with a rectifying mechanism consisting of a front rectifying disc and a rear rectifying component;
the front rectifying disc is a first rectifier (6), and the rear rectifying part is a rear rectifying part with a cross section formed by a plurality of polygons.
2. The ultrasonic flow meter of claim 1, without the need for a leading straight tube section, wherein: the front rectifier disc is a first rectifier (6) provided with a plurality of through holes; the rear rectifying component is formed by a plurality of hexagons in the cross section.
3. The ultrasonic flow meter of claim 1, without the need for a leading straight tube section, wherein: the rear rectifying component is a rectifying component which is formed by a vertical grid (7) and a horizontal grid (8) and has a cross section formed by a plurality of lattices; the vertical grating (7) and the horizontal grating (8) are arranged in a matched mode, and the cross section of the vertical grating is arranged at an included angle.
4. The ultrasonic flow meter of claim 1, without the need for a leading straight tube section, wherein: the first rectifier (6) comprises: the flow regulating device comprises a first flow regulating disc (601), a first flow regulating hole (602), a second flow regulating hole (603) and a conical lug (604).
5. The ultrasonic flow meter of claim 1, without the need for a leading straight tube section, wherein: the front rectifying disc and the rear rectifying part are connected in a splicing mode through a splicing assembly (11).
6. The ultrasonic flow meter of claim 1, without the need for a leading straight tube section, wherein: the measuring device is characterized in that a first ultrasonic sensor (12) and a second ultrasonic sensor (13) are arranged in the measuring cavity (5), and a sensor (14) is arranged at the joint of the ultrasonic flowmeter (1) and the display (2).
7. The ultrasonic flow meter of claim 4, without the need for a leading straight tube section, wherein: the first rectifying disc (601) is fixedly installed inside the metering cavity (5), a first rectifying hole (602) and a second rectifying hole (603) are formed in the first rectifying disc (601), and a conical bump (604) is fixedly installed on the left side of the first rectifying disc (601); the first flow adjusting hole (602) and the second flow adjusting hole (603) both penetrate through the first flow adjusting disc (601), and the first flow adjusting hole (602) and the second flow adjusting hole (603) are annularly distributed around the center of the first flow adjusting disc (601).
8. An ultrasonic flow meter according to claim 6 which does not require a leading straight pipe section, wherein: the first ultrasonic sensor (12) and the second ultrasonic sensor (13) are both provided with two same ultrasonic sensors, and the first ultrasonic sensor (12) and the second ultrasonic sensor (13) are symmetrically distributed around the central line of the metering cavity (5).
9. An ultrasonic flow meter without a leading straight tube section according to claim 3, wherein: the first rectifier (6), the vertical grid (7) and the horizontal grid (8) are made of one of metal materials or plastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210212140.XA CN114485821A (en) | 2022-03-04 | 2022-03-04 | Ultrasonic flowmeter without front straight pipe section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210212140.XA CN114485821A (en) | 2022-03-04 | 2022-03-04 | Ultrasonic flowmeter without front straight pipe section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114485821A true CN114485821A (en) | 2022-05-13 |
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ID=81485697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210212140.XA Pending CN114485821A (en) | 2022-03-04 | 2022-03-04 | Ultrasonic flowmeter without front straight pipe section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114485821A (en) |
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2022
- 2022-03-04 CN CN202210212140.XA patent/CN114485821A/en active Pending
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