Ultrasonic pipeline high-precision metering device

Abstract

The invention relates to the technical field of fluid flowmeters, in particular to an ultrasonic pipeline high-precision metering device. According to the technical scheme, the ultrasonic pipeline high-precision metering device comprises a flow meter body, a detection roller is rotationally connected to the interior of the flow meter body, a plurality of first detection assemblies are arranged on the inner wall of the flow meter body, and the detection roller is provided with a second detection assembly. The second detection assembly and the first detection assembly are oppositely arranged; the detection roller and the flow meter body are eccentrically arranged, so that when the second detection assembly and each first detection assembly are oppositely arranged, the distance between the second detection assembly and each first detection assembly is different. The distance between the second detection assembly and the first detection assembly can be dynamically changed, and multiple groups of differentiated ultrasonic signals can be obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid flow meters, and specifically, it is an ultrasonic pipeline high-precision metering device. Background Art

[0002] Traditional ultrasonic flow meters usually use fixed probes to detect the fluid in the pipeline, and their measurement accuracy is easily affected by factors such as uneven fluid velocity distribution, interference of bubbles or impurities. In the prior art, some flow meters drive the detection component to move through a rotating part to improve the measurement coverage, but there are problems such as a constant distance between the rotating part and the detection probe and single signal reception, resulting in insufficient adaptability to different flow velocity regions and still room for improvement in measurement accuracy.

[0003] Therefore, the present application provides an ultrasonic pipeline high-precision metering device to solve the problems of single flow velocity detection method and insufficient accuracy of detection results in the prior art. Summary of the Invention

[0004] To solve the above problems, the present invention provides an ultrasonic pipeline high-precision metering device.

[0005] The technical solution adopted by the present invention to solve its technical problems is an ultrasonic pipeline high-precision metering device, including a flow meter main body. A detection roller is rotatably connected inside the flow meter main body. A plurality of first detection components are arranged on the inner wall of the flow meter main body. The detection roller is configured with a second detection component, and the second detection component is arranged opposite to the first detection components; A spiral blade is arranged at the water inlet side end of the detection roller, and the water flow impacts the spiral blade to drive the detection roller to rotate, so that the second detection component is sequentially arranged opposite to the plurality of first detection components; The detection roller is eccentrically arranged with respect to the flow meter main body, so that when the second detection component is arranged opposite to each first detection component, the distance between the second detection component and each first detection component is different.

[0006] As an optimization, the flow meter main body includes a water inlet end, a detection section, and a water drainage end connected in sequence. The detection roller is arranged inside the detection section, and the cross-section perpendicular to the length direction of the detection section is cam-shaped, and the axis of the detection roller is located on the long diameter side of the detection section.

[0007] As an optimization, a connecting ring is recessed on the outer periphery of the detection roller, and the second detection component is arranged in the connecting ring. The first detection component includes an ultrasonic flow detector, and the second detection component includes a signal receiving part and at least one ultrasonic flow detector. The signal receiving part is arranged in an arc shape in the connecting ring, and the signal receiving part is used to receive the signal emitted by the first detection component.

[0008] As an optimization, a positioning strip fixed along the length direction is arranged outside the detection section. A plurality of positioning grooves are formed in the positioning strip, and an electromagnet is arranged on the positioning strip. The positioning grooves are used for accommodating the electromagnet. A plurality of positioning magnetic blocks arranged along the length direction are arranged outside the detection roller. When the electromagnet and the positioning magnetic blocks are arranged opposite to each other, the detection roller can be fixed.

[0009] As an optimization, the water inlet end of the detection roller is conical. A fixing frame is arranged inside the flowmeter main body, and the detection roller is rotatably connected to the fixing frame.

[0010] As an optimization, a flow guiding block is arranged inside the flowmeter main body, and the flow guiding block is located on the water inlet side of the first detection assembly.

[0011] As an optimization, the plurality of positioning magnetic blocks are spirally arranged along the length direction of the detection roller, and the vertical distance between adjacent two positioning magnetic blocks is equal.

[0012] The beneficial effects of this solution are as follows: The detection roller of this application is eccentrically arranged, so that the distance between the second detection assembly and the first detection assembly can be dynamically changed, and multiple groups of differentiated ultrasonic signals can be obtained. After comprehensive calculation, the accuracy and precision of flow measurement can be effectively improved, especially suitable for fluids with uneven flow velocity distribution. The detection roller can be magnetically attracted by the electromagnet, and the detection roller can be locked at a specific position to realize the precise alignment of the detection assembly, which is convenient for detection at a certain detection distance and precision. Description of the Drawings

[0013] Figure 1 It is an axonometric schematic diagram of the present invention.

[0014] Figure 2 It is a right view schematic diagram of the present invention.

[0015] Figure 3 For the present invention Figure 3 The sectional structure schematic diagram of A-A.

[0016] Figure 4 It is a front view schematic diagram of the present invention.

[0017] Figure 5 For the present invention Figure 4 The sectional structure schematic diagram of B-B.

[0018] Figure 6 It is an axonometric schematic diagram of the detection roller of the present invention.

[0019] Figure 7 It is an overall structure schematic diagram of the detection roller of the present invention.

[0020] Among them, 1 is the flowmeter main body, 2 is the detection roller, 3 is the first detection component, 4 is the spiral blade, 5 is the detection section, 6 is the signal receiving part, 7 is the positioning strip, 8 is the positioning groove, 9 is the electromagnet, 10 is the positioning magnet, 11 is the fixing bracket, and 12 is the diversion block. Specific implementation mode

[0021] As Figures 1-6 shown, an ultrasonic pipeline high-precision metering device includes a flowmeter main body 1. A detection roller 2 is rotatably connected inside the flowmeter main body 1. A plurality of first detection components 3 are arranged on the inner wall of the flowmeter main body 1. The detection roller 2 is configured with a second detection component, and the second detection component is arranged opposite to the first detection component 3; A spiral blade 4 is arranged at the water inlet side end of the detection roller 2. The water flow impacts the spiral blade 4 to drive the detection roller 2 to rotate, so that the second detection component and a plurality of first detection components 3 are arranged opposite to each other in sequence; The detection roller 2 is eccentrically arranged with the flowmeter main body 1, so that when the second detection component is arranged opposite to each first detection component 3, the distance between the second detection component and each first detection component 3 is different.

[0022] The detection roller 2 is eccentrically arranged with the flowmeter main body 1, so that there is a part where the distance between the first detection component 3 and the second detection component gradually increases, and the liquid flow rate can be detected through multiple detection distances.

[0023] When the first detection component 3 and the second detection component are arranged opposite to each other, signals can be transmitted and received between them to realize the measurement of the liquid flow rate. By arranging the spiral blade 4, the detection roller 2 is driven to rotate by the impact of the water flow, without additional power, energy-saving and rapid response.

[0024] As Figure 1 、 Figure 2 and Figure 5 shown, the flowmeter main body 1 includes a water inlet end, a detection section 5 and a water drainage end connected in sequence. The detection roller 2 is arranged inside the detection section 5. The cross-section perpendicular to the length direction of the detection section 5 is cam-shaped, and the axis of the detection roller 2 is located on the long diameter side of the detection section 5.

[0025] As Figure 5 shown, the axis of the detection roller 2 is located on the left side of the midpoint of the long diameter of the detection section 5. Correspondingly, the axis of the detection roller 2 can also be arranged on the right side of the long diameter of the detection section 5. The specific setting position of the detection roller 2 can be set according to the liquid characteristics, equipment assembly, etc., so as to realize that the distance between the first detection component 3 and the second detection component is unevenly distributed and there is a gradually increasing regional displacement.

[0026] As Figure 3 andFigure 6 As shown, a connecting ring is formed by a depression on the outer periphery of the detection roller 2, and the second detection assembly is arranged within the connecting ring. The first detection assembly 3 includes an ultrasonic flow detector. The second detection assembly includes a signal receiving part 6 and at least one ultrasonic flow detector. The signal receiving part 6 is arranged in an arc shape within the connecting ring, and the signal receiving part 6 is used to receive the signal emitted by the first detection assembly 3.

[0027] The ultrasonic flow detector has the functions of signal transmission and reception. The signal receiving part 6 is the same as the signal receiving sensor in the ultrasonic flow detector.

[0028] When the ultrasonic flow detectors of the first detection assembly 3 and the second detection assembly are arranged opposite to each other, signal transmission and reception can be carried out between them. When the first detection assembly 3 and the signal receiving part 6 are arranged opposite to each other, the signal receiving part 6 can receive the signal emitted by the first detection assembly 3 and transmit the signal to the sensor module or other calculation modules, which is specifically determined according to the actual settings of the system and will not be elaborated here.

[0029] As Figure 1 and Figure 6 shown, a positioning strip 7 fixed along the length direction is arranged outside the detection section 5. The positioning strip 7 is provided with a plurality of positioning grooves 8. The positioning strip 7 is configured with an electromagnet 9, and the positioning grooves 8 are used to accommodate the electromagnet 9; A plurality of positioning magnetic blocks 10 arranged along the length direction are provided outside the detection roller 2. When the electromagnet 9 and the positioning magnetic block 10 are arranged opposite to each other, the detection roller 2 can be fixed.

[0030] When the electromagnet 9 is energized, it can magnetically attract the positioning magnetic block 10, so that the detection roller 2 stops rotating, so that the ultrasonic flow detector of the detection roller 2 detects the liquid flow rate at a fixed distance, that is, the detection accuracy is fixed. In actual use, a specific distance can be selected for detection according to the characteristics of the liquid, the structure of the equipment, etc.

[0031] As Figure 5 and Figure 6 shown, the water inlet end of the detection roller 2 is conical. A fixing frame 11 is arranged inside the flowmeter main body 1, and the detection roller 2 is rotatably connected to the fixing frame 11.

[0032] The detection roller 2 and the fixing frame 11 can be connected by a bearing, and the friction between them is negligible.

[0033] As Figure 3 shown, a flow guiding block 12 is arranged inside the flowmeter main body 1, and the flow guiding block 12 is located on the water inlet side of the first detection assembly 3.

[0034] The flow guiding block 12 can guide the water flow. The outer end of the flow guiding block 12 does not exceed the outer end of the first detection component 3, enabling the liquid to flow smoothly through the first detection component 3 and preventing the flow rate of the liquid at the position of the first detection component 3 from being too fast or too slow, which may affect the distribution of the flow rate.

[0035] As Figure 6 shown, several of the positioning magnets 10 are spirally arranged along the length direction of the detection roller 2, and the vertical distance between adjacent two positioning magnets 10 is equal.

[0036] This distribution method can effectively reduce the interference between adjacent positioning magnets 10 and improve the accuracy of the attitude limitation of the detection roller 2.

[0037] Usage method: When the device is specifically used, the liquid enters the flowmeter main body 1 through the water inlet end, contacts the detection roller 2 in the detection section 5, and flows out through the water drainage end; During the detection process, the electromagnet 9 can be removed to release the locking of the detection roller 2, enabling the detection roller 2 to rotate under the impact of the water flow; During the rotation of the detection roller 2, the ultrasonic flow detector on the detection roller 2 and the first detection component 3 on the inner wall of the flowmeter main body 1 are arranged opposite to each other one by one. Since the distance between the second detection component and the first detection component 3 shows uneven distribution, during the rotation of the detection roller 2, the liquid flow rate can be detected at different distances, and multiple groups of detection data can be compared and verified with each other to improve the accuracy of the liquid flow rate detection; According to the results detected in the above process, the position of the detection roller 2 can be locked, so as to detect the liquid flow rate through a certain two fixed distances. The specific steps are as follows: The electromagnet 9 is energized, and the electromagnet 9 is inserted into the positioning groove 8 at the corresponding position. The positioning magnet 10 is magnetically attracted by the electromagnet 9 to lock the position of the detection roller 2; The detection roller 2 is in a fixed state. At this time, the liquid passing through the inside of the flowmeter main body 1 can be detected by the two ultrasonic liquid flow detectors of the second detection component.

[0038] The above specific implementation manners are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product forms and styles of the above specific implementation manners. Any ultrasonic pipeline high-precision metering device that meets the claims of the present invention and any appropriate changes or modifications made by those of ordinary skill in the relevant technical fields shall fall within the patent protection scope of the present invention.

Claims

1. An ultrasonic pipeline high-precision metering device, comprising a flow meter body (1), characterized in that: The flow meter body (1) is rotatably connected to a detection roller (2), the inner wall of the flow meter body (1) is provided with a plurality of first detection components (3), the detection roller (2) is provided with a second detection component, and the second detection component is arranged opposite to the first detection component (3); The water inlet side end of the detection roller (2) is provided with a spiral blade (4), and the water flow impacts the spiral blade (4) to drive the detection roller (2) to rotate, so that the second detection component and the plurality of first detection components (3) are arranged opposite to each other in sequence; The detection roller (2) is eccentrically arranged with respect to the flow meter body (1), so that when the second detection component is arranged relative to each first detection component (3), the distance between the second detection component and each first detection component (3) is different.

2. The ultrasonic pipeline high-precision metering device according to claim 1 is characterized in that: The flow meter body (1) comprises a water inlet end, a detection section (5) and a water discharge end which are connected in sequence; the detection roller (2) is arranged inside the detection section (5); the cross section perpendicular to the length direction of the detection section (5) is cam-shaped; the axis of the detection roller (2) is located on the side of the long diameter of the detection section (5).

3. The ultrasonic pipeline high-precision metering device according to claim 1 is characterized in that: The outer periphery of the detection roller (2) is recessed to form a connecting ring, the second detection component is arranged in the connecting ring, the first detection component (3) includes an ultrasonic flow detector, the second detection component includes a signal receiving part (6) and at least one ultrasonic flow detector, the signal receiving part (6) is arranged in an arc shape in the connecting ring, and the signal receiving part (6) is used to receive the signal emitted by the first detection component (3).

4. The ultrasonic pipeline high-precision metering device according to claim 2 is characterized in that: The detection section (5) is provided with a positioning strip (7) fixed along the length direction on the outside, the positioning strip (7) is provided with a plurality of positioning grooves (8), the positioning strip (7) is provided with an electromagnet (9), and the positioning groove (8) is used to accommodate the electromagnet (9); The detection roller (2) is provided with a plurality of positioning magnetic blocks (10) arranged along the length direction on the outside. When the electromagnet (9) and the positioning magnetic blocks (10) are arranged relative to each other, the detection roller (2) can be fixed.

5. The ultrasonic pipeline high-precision metering device according to claim 1 is characterized in that: The water inlet end of the detection roller (2) is conical, a fixing frame (11) is provided inside the flow meter body (1), and the detection roller (2) is rotatably connected to the fixing frame (11).

6. The ultrasonic pipeline high-precision metering device according to claim 1 is characterized in that: A flow guide block (12) is arranged inside the flow meter body (1), and the flow guide block (12) is located on the water inlet side of the first detection component (3).

7. The ultrasonic pipeline high-precision metering device according to claim 4 is characterized in that: A plurality of positioning magnetic blocks (10) are spirally arranged along the length direction of the detection roller (2), and the vertical distance between two adjacent positioning magnetic blocks (10) is equal.

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