CN213842279U - Outer formula ultrasonic flowmeter that presss from both sides convenient to use - Google Patents
Outer formula ultrasonic flowmeter that presss from both sides convenient to use Download PDFInfo
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- CN213842279U CN213842279U CN202023349899.8U CN202023349899U CN213842279U CN 213842279 U CN213842279 U CN 213842279U CN 202023349899 U CN202023349899 U CN 202023349899U CN 213842279 U CN213842279 U CN 213842279U
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- 230000010354 integration Effects 0.000 abstract 1
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- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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Abstract
The application relates to an external clamp type ultrasonic flowmeter convenient to use, which comprises a support and a signal processor arranged on the support, wherein the support is clamped on a pipeline to be measured, and a slotted hole is formed in one side, which is hollow inside the support and is close to the pipeline. The length direction of the bracket is parallel to the pipeline below the bracket; the support internally mounted has the roll adjustment device, the roll adjustment device includes knob, roll adjustment rack, connecting rod and roll adjustment gear. The fixture uses a clip to mount the flow meter on the pipe. This application drives roll adjustment gear through the knob and rotates, and roll adjustment gear realizes the linear motion of roll adjustment rack with the cooperation of roll adjustment rack. This application has saved and has installed the step of the flowmeter behind positioner with the probe in order to guarantee probe installation accuracy among the conventional art and the step of installing positioner, and the while is in the same place signal processor, probe and fixing device integration, has kept the measurement accuracy of flowmeter when reducing flowmeter overall installation time.
Description
Technical Field
The present disclosure relates to a flow measuring device, and more particularly, to a clamp-on ultrasonic flow meter with a simple structure.
Background
The outer formula of pressing from both sides ultrasonic flowmeter is with ultrasonic wave propagation time difference as the principle, measures the instrument of liquid flow in the pipe, usually includes flowmeter and two probes to the shape of two probes is mostly the cuboid. The external clip type ultrasonic flowmeter is mounted in four ways, namely a V method, a Z method, an N method and a W method. In general, a V method is preferably adopted for a pipeline with the installation pipe diameter within the range of DN15-200mm, and a Z method is selected when the signal cannot be detected by the V method or the signal quality is poor; the installation pipe diameter is more than DN200mm or the Z method is preferably selected when the cast iron pipe is measured; the N method and the W method are less used and are suitable for installing a thin pipe with the pipe diameter below DN50 mm. The conventional installation procedure for the V and W methods is as follows: 1. determining the positions of the two probes on the outer wall of the pipeline according to the field condition, and coating a couplant on the detection surfaces of the two probes; 2. during installation, a worker can ensure that the two probes are positioned on the same horizontal line by visual inspection and observation of parameters of the meter head of the flowmeter, and determine the distance between the two probes. When the external clamp type flowmeter is used, the measurement accuracy is greatly influenced by the installation position of the probe, and the higher the parallelism between the distance direction between the two probes and the length direction of the pipeline is, the higher the measurement accuracy is. The conventional installation method has the problems of low installation efficiency and large installation error because workers need to visually install the installation method.
In order to solve the above problem, the utility model discloses a positioning tool for installing outer clamp formula ultrasonic flowmeter is disclosed to utility model patent No. CN212007361U, including compressing tightly the pole, compressing tightly the hoop, tightening up the regulating part, pressing from both sides tight regulating part and two probe clamps, compressing tightly the pole and arranging along the central line direction of pipeline, pipeline compresses tightly hoop fixed connection on compressing tightly the pole, and two probe clamps have a sliding connection on compressing tightly the pole at least. When the device is used, the distance between the two probes is adjusted by adjusting the position of the probe clamp. Although the two probes are ensured to be positioned on the same horizontal line and arranged along the central line direction of the pipeline, the probes are required to be fixed on the probe clamps firstly during installation, the probes are moved to enable the distance between the probes to be proper, then the positioning device is fixed by using screws, the flowmeter is additionally installed after the positioning device is fixed, and the installation process is complicated and inconvenient to use.
In view of the above-mentioned related art, the inventor considers that there is a need for a clip-on ultrasonic flowmeter that can be easily installed while ensuring the installation accuracy.
SUMMERY OF THE UTILITY MODEL
The application provides a formula ultrasonic flowmeter presss from both sides outward convenient to use adopts following technical scheme:
a convenient external clamping type ultrasonic flowmeter comprises a bracket, a fixing device and a signal processor, wherein the fixing device is used for clamping the bracket on a pipeline to be measured, the signal processor is arranged on the bracket, a cavity is formed in the bracket, and a slotted hole is formed in one side of the bracket, which is far away from the pipeline; a distance adjusting device is arranged in the bracket and comprises a knob, a distance adjusting rack, a connecting rod and a distance adjusting gear; the utility model discloses a device for detecting flow, including connecting rod, distance adjusting gear, probe, support, knob fixed connection, connecting rod middle section, distance adjusting gear and distance adjusting rack meshing, the support is opened the through-hole that has the depth direction the same with the width direction of support, the through-hole with the connecting rod rotates to be connected just knob fixed connection is in the one end of connecting rod, distance adjusting gear fixed mounting be in the connecting rod middle section, distance adjusting gear and distance adjusting rack meshing just all are located fixing device institute and open the cavity, the distance adjusting rack is not fixed with the probe that is used for detecting the flow with the one. And the lead of the probe extends out of the slotted hole on one side of the bracket, which is far away from the pipeline.
Through adopting above-mentioned technical scheme, drive roll adjustment gear through the knob and rotate, roll adjustment gear and roll adjustment rack cooperation realize the linear motion of roll adjustment rack along support length direction, because roll adjustment rack and probe fixed connection, realized the purpose through rotating the distance between the knob regulation probe, therefore saved and installed the step at positioner with the probe and installed the step of additionally installing the flowmeter behind the positioner, simultaneously with signal processor, probe and fixing device are integrated together, the measurement accuracy of flowmeter has been kept when reducing flowmeter overall installation time.
Optionally, the bottom of the signal processor is rotatably connected to one end of the bracket.
By adopting the technical scheme, the signal processor is rotatably connected with the support, so that when the probe is mounted on any one side of the circumference of the section of the pipeline, the currently monitored data can be conveniently read by rotating the signal processor.
Optionally, a positioning groove is formed in the end face, away from the pipeline, of the support; the length direction of the positioning groove is the same as that of the bracket; the probes are arranged at two ends of the positioning groove; the probe comprises a sensor and a wire outlet pipe, the wire outlet pipe is fixed on the end face of the sensor, which is far away from the pipeline, a lead of the sensor penetrates through the wire outlet pipe, and the wire outlet pipe is inserted into the positioning groove and is in sliding connection with the positioning groove; the one end fixed mounting that the pipe is located the support outside of being qualified for the next round of competitions has the baffle, just the baffle is contradicted with the upper surface of support.
Through adopting above-mentioned technical scheme, the setting up of outlet pipe and baffle makes the direction of motion of sensor inject in the constant head tank, makes the probe move in the arbitrary direction that can be on a parallel with pipeline length, has reduced installation error, has improved measurement accuracy. And the setting of baffle can also prevent that the probe from droing and causing the use that the winding of probe connecting wire arouses together inconvenient when taking off the flowmeter.
Optionally, the distance adjusting rack is installed on two sides of the probe; and two distance adjusting racks positioned on the same side of the two probes are meshed with one distance adjusting gear, and the distance adjusting racks arranged on the single probe are symmetrical relative to the probe.
Through adopting above-mentioned technical scheme, the roll adjustment rack is installed at every probe both ends, makes the motion of probe more steady, is difficult for taking place the slope, when the distance of adjusting the probe, therefore solves two probes because the inhomogeneous emergence slope of atress card in the inside unable problem that removes of frame.
Optionally, the fixing device comprises an upper fixing ring fixedly connected with the lower end of the bracket and a lower fixing ring hinged to the lower end of the upper fixing ring, a clamping mechanism is arranged between the upper fixing ring and the lower fixing ring, the clamping mechanism comprises a flange fixed at one end of the lower fixing ring and a fixture block fixed on the upper fixing ring, and a square hole clamped with the fixture block is formed in the flange.
Through adopting above-mentioned technical scheme, use the joint to being connected of flowmeter and pipeline, compare in the connected mode of bolted connection who uses traditional flowmeter, simplified the installation, shortened installation time, the solid fixed ring lost's problem when also having avoided split type to connect simultaneously.
Optionally, the edge of the flange is arc-shaped, and the distance between one end of the flange, which is far away from the lower fixing ring, and the pipeline is larger than the distance between the lower fixing ring and the pipeline.
By adopting the technical scheme, the lower fixing ring is provided with the flange, and the flange is inclined, so that the fixing device is convenient to disassemble; simultaneously, the flange is set to be a curved surface, and when the upper fixing ring and the lower fixing ring are clamped, the clamping block of the lower fixing ring can be clamped into the square hole of the upper fixing ring more easily by the flange which is set to be a cambered surface.
Optionally, the upper fixing ring and the lower fixing ring are fixedly provided with anti-skid pads facing one side of the pipeline.
Through adopting above-mentioned technical scheme, the installation slipmat has increased the frictional force of installation flow, has promoted the stability of installation, has also avoided the flowmeter to slide when measuring simultaneously and has aroused the measured precision loss.
Optionally, the end surface of the bracket close to the pipeline is a curved surface, and the curved surface is arranged along the outer wall of the pipeline.
Through adopting above-mentioned technical scheme, increased the contact surface of support with the pipeline, promoted the stability of flowmeter when installing.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the installation operation of the traditional flowmeter is simplified, the distance between the sensors can be adjusted by rotating the knob, and meanwhile, the positioning device, the flowmeter and the fixing device of the traditional flowmeter are integrated, so that the operation steps are simplified, and the installation time is reduced;
2. the fixing device adopts the buckle, and compared with the method that the flowmeter is fixed by using a bolt, the mounting time is saved;
3. the flowmeter signal processor is rotatably connected with the frame, so that the flowmeter is convenient to read when being arranged at any position of the circumference of the section of the pipeline.
Drawings
Fig. 1 is an overall structural view of an embodiment of the present application.
Fig. 2 is a schematic diagram of an explosive structure according to an embodiment of the present application.
Fig. 3 is a schematic view of the internal structure of the embodiment of the present application.
Description of reference numerals: 1. a signal processor; 11. a probe; 111. a baffle plate; 112. a wire outlet pipe; 113. a sensor; 2. a support; 21. a through hole; 22. positioning a groove; 3. a fixing device; 31. an upper fixing ring; 32. a lower fixing ring; 33. a chucking mechanism; 331. a flange; 332. a clamping block; 34. a non-slip mat; 4. a distance adjusting device; 41. a knob; 42. a pitch adjusting gear; 43. a distance adjusting rack; 44. a connecting rod.
Detailed Description
The embodiment of the application discloses an outer clamp type ultrasonic flowmeter convenient to use. Referring to fig. 1, an external clamp type ultrasonic flow meter convenient to use includes a signal processor 1, a bracket 2, a fixing device 3, and a distance adjusting device 4. Support 2 is rectangular shaped steel and opening part connection fixing device 3 of U-shaped for the cross-section, and support 2 passes through fixing device 3 to be fixed on the pipeline that needs the measurement flow, and support 2's opening part and pipeline surface butt, and support 2's length direction is parallel with the length direction of pipeline. The signal processor 1 is positioned on an extension line of the length direction of the bracket 2, and the distance adjusting device 4 is arranged in the bracket 2.
Referring to fig. 1 and 2, a curved surface is formed at a portion of the bracket 2, which abuts against the pipeline, and the curved surface has the same shape as the outer wall of the pipeline, and the curved surface increases the contact area between the bracket 2 and the pipeline, so that the bracket 2 is more stable when being connected with the pipeline. The end face, away from the pipeline, of the support 2 is provided with a positioning groove 22, the length direction of the positioning groove 22 is parallel to the length direction of the support 2, the middle of the support 2 is provided with a through hole 21, and the depth direction of the through hole 21 is the same as the width direction of the support 2.
The side wall of the signal processor 1 and one end of the bracket 2 are rotatably arranged, so that the angle of the signal processor 1 can be independently adjusted after the whole flowmeter is arranged at each position of a pipeline, and the signal processor 1 is convenient to operate and read.
The signal processor 1 is electrically connected with two probes 11, and the probes 11 transmit detected signals to the signal processor 1. The probes 11 are arranged in the support 2, the connecting line of the two probes 11 is parallel to the length direction of the support 2, and the two probes 11 are symmetrically distributed at the two ends of the support 2. The probe 11 comprises a baffle 111, a wire outlet pipe 112 and a sensor 113, the wire outlet pipe 112 is in a circular tubular shape, the wire outlet pipe 112 and the positioning groove 22 form a sliding fit, one end, located on the outer side of the support 2, of the wire outlet pipe 112 penetrates through the baffle 111 arranged in parallel with the support 2, and when the flowmeter is taken down, the baffle 111 prevents the probe 11 from falling out of the support 2. The sensor 113 is fixed at one end of the outlet pipe 112 located inside the bracket 2, the sensor 113 is of a rectangular block structure, the length direction of the sensor 113 is the same as the height direction inside the bracket 2, and when the sensor is installed, the end face, far away from the pipeline, inside the bracket 2 can be tightly abutted against the probe 11, so that the probe 11 is fixed on the pipeline.
The fixing device 3 is integrally in a ring shape, and when the flowmeter works, the fixing device 3 is sleeved on a pipeline. Fixing device 3 includes upper fixed ring 31 and lower fixed ring 32, and upper fixed ring 31 and lower fixed ring 32 are the semicircle ring, and the middle section of upper fixed ring 31 and the one end fixed connection of support 2 contact pipeline, and the part that upper fixed ring 31 is located support 2 inside sets up the slotted hole the same with the inside width of support 2 and makes the sensor slide smoothly in the cavity of support 2. One end of the lower fixing ring 32 is hinged with the upper fixing ring 31, and the other end is clamped with the upper fixing ring 32. The fixing device 3 further comprises a clamping mechanism 33, the clamping mechanism 33 is arranged at one end where the upper fixing ring 31 and the lower fixing ring 32 are clamped, specifically, the clamping block 332 is arranged on the upper fixing ring 31, and a flange 331 is arranged on the lower fixing ring 32 and matched with the clamping block 332, a square hole with the same cross section as that of the clamping block 332 is formed in the flange 331, when the fixing device is installed, the upper fixing ring 31 is placed on a pipeline, so that a cambered surface with a smaller radius of the upper fixing ring 31 is abutted to the outer wall of the pipeline, the lower fixing ring 32 rotates by taking the hinged part as an axis, the clamping block 332 of the upper fixing ring 31 penetrates into the square hole in the flange 331 of the lower fixing ring 32, after the clamping block 332 of the upper fixing ring 31 penetrates into the square hole in the flange 331 of the lower fixing ring 32, the upper fixing ring 31 and the lower fixing ring 32 simultaneously sleeve the pipeline, and the bracket 2 is fixed on the pipeline. Meanwhile, one surface of the fixing ring, which is abutted against the side wall of the pipeline, is provided with a rubber anti-slip pad 34 for increasing friction force so as to improve the installation stability.
Referring to fig. 2 and 3, the pitch adjusting device 4 includes a knob 41, a pitch adjusting gear 42, a pitch adjusting rack 43, and a connecting rod 44. The connecting rod 44 penetrates through a through hole 21 formed in the center of the side wall of the bracket 2 and is rotatably connected with the through hole 21, and one end, extending out of the bracket 2, of the connecting rod 44 is fixed with the knob 41, so that the connecting rod 44 and the knob 41 follow up; inside the support 2, two roll adjustment gears 42 are fixed on a connecting rod 44, the distance between the two roll adjustment gears 42 and the center of the support 2 is equal, the end face of the roll adjustment gear 42 is parallel to the end face of the support 2 with the through hole 21, two roll adjustment racks 43 are arranged on the side of the roll adjustment gear 42 close to the knob 41, the two roll adjustment racks 43 are matched with the roll adjustment gear 42, the two roll adjustment racks 43 are centrosymmetric about the rotation center of the roll adjustment gear 42, and the movement direction of the roll adjustment racks 43 is parallel to the length direction of the support 2. The same pitch-adjusting rack 43 as the above-described pitch-adjusting rack 43 is provided at the same position on the pitch-adjusting gear 42 side away from the knob 41. The two distance adjusting gears 42 and the distance adjusting rack 43 are symmetrical about the central plane in the height direction of the support 2, the central plane is parallel to the length direction of the support 2, the sensor 113 is fixed on one side of the distance adjusting gears 42 close to the length direction of the support 2, the sensor 113 follows the distance adjusting rack 43, when the distance of the probe 11 is adjusted, the knob 41 is rotated, the distance adjusting gears 42 rotate along with the knob 41, the distance adjusting racks 43 are driven by the rotation of the distance adjusting gears 42 to perform linear motion along the length direction of the support 2, and the probe 11 follows the distance adjusting racks 43, so that the purpose of adjusting the distance of the probe 11 is achieved. The purpose of the symmetrical arrangement of the distance adjusting racks 43 is to prevent the probe 11 from inclining due to the unidirectional force during the distance adjustment process, and further eliminate the phenomenon that the sensor 113 is clamped inside the bracket 2 and cannot adjust the distance.
4. The embodiment of the application discloses a clamp-on ultrasonic flowmeter convenient to use. When the device is used, a user only needs to rotate the knob 41 to adjust the distance between the two probes 11, then the bracket 2 is arranged on a pipeline according to the position of the probes 11, which is needed, the lower fixing ring 32 is moved towards the upper fixing ring 31, the fixture blocks 332 penetrate into the square holes formed in the flange 331 and are clamped, the upper fixing ring 31 and the lower fixing ring 32 are fixed, the bracket 2 is fixed on one side of the pipeline, and finally the signal processor 1 is rotated according to the arranged pipeline position to enable the signal processor 1 to be positioned at an angle convenient for the user to observe and operate. When the flowmeter needs to be disassembled, the lower fixing ring 32 and the upper fixing ring 31 can be separated only by pulling the flange 331, and then the flowmeter can be disassembled by taking down the flowmeter. The operation steps of installing the flowmeter are simplified, and the installation time is reduced;
the above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an outer clamp type ultrasonic flowmeter convenient to use which characterized in that: the device comprises a support (2), a fixing device (3) for clamping the support (2) on a pipeline to be tested and a signal processor (1) arranged on the support (2), wherein a cavity is formed in the support (2), the lower end face of the cavity is attached to the pipeline, and the length direction of the support (2) is parallel to the length direction of the pipeline; a distance adjusting device (4) is installed in a cavity of the support (2), and the distance adjusting device (4) comprises a knob (41), a distance adjusting rack (43), a connecting rod (44) and a distance adjusting gear (42); support (2) are opened the through-hole (21) that the width direction that has depth direction and support (2) is the same, through-hole (21) with connecting rod (44) rotate to be connected just knob (41) fixed connection be in the one end of connecting rod (44), roll adjustment gear (42) fixed mounting be in connecting rod (44) middle section, roll adjustment gear (42) and roll adjustment rack (43) meshing, roll adjustment rack (43) are fixed with probe (11) that are used for detecting the flow with the one end of roll adjustment gear (42) meshing, two roll adjustment rack (43) on probe (11) are symmetrical about the center of rotation of roll adjustment gear (42), probe (11) and the inner wall constitution of support (2) are the cooperation of sliding.
2. A conveniently used clip-on ultrasonic flow meter according to claim 1, wherein: the bottom of the signal processor (1) is rotatably connected to one end of the bracket (2).
3. A conveniently used clip-on ultrasonic flow meter according to claim 2, wherein: a positioning groove (22) is formed in the end face, far away from the pipeline, of the support (2); the length direction of the positioning groove (22) is the same as that of the bracket (2); the probes (11) are arranged at two ends of the positioning groove (22); the probe (11) comprises a sensor (113) and a wire outlet pipe (112), the wire outlet pipe (112) is fixed on the end face, far away from the pipeline, of the sensor (113), a wire of the sensor (113) penetrates through the wire outlet pipe (112), and the wire outlet pipe (112) is inserted into the positioning groove (22) and is in sliding connection with the positioning groove (22); one end fixed mounting that goes out spool (112) and be located support (2) outside has baffle (111), just baffle (111) contradicts with the upper surface of support (2).
4. A conveniently used clip-on ultrasonic flow meter according to claim 3, wherein: the distance adjusting racks (43) are arranged on two sides of the probe (11); and two distance adjusting racks (43) positioned on the same side of the two probes (11) are meshed with one distance adjusting gear (42), and the distance adjusting racks (43) arranged on the single probe (11) are symmetrical relative to the probe (11).
5. A conveniently used clip-on ultrasonic flow meter according to claim 1, wherein: fixing device (3) including with support (2) lower extreme fixed connection last fixed ring (31) and with last fixed ring (31) lower extreme articulated lower fixed ring (32), be equipped with chucking mechanism (33) between last fixed ring (31) and lower fixed ring (32), chucking mechanism (33) are including fixing flange (331) of lower fixed ring (32) one end and fixing fixture block (332) on last fixed ring (31), set up the square hole with fixture block (332) joint on flange (331).
6. A conveniently used clip-on ultrasonic flow meter according to claim 5, wherein: the edge of flange (331) is the arc, just flange (331) are kept away from the interval of the one end of lower fixed ring (32) and pipeline and are greater than the interval of lower fixed ring (32) and pipeline.
7. A conveniently used clip-on ultrasonic flow meter according to claim 5, wherein: and the upper fixing ring (31) and the lower fixing ring (32) are fixedly provided with anti-skid pads (24) towards one surface of the pipeline.
8. A conveniently used clip-on ultrasonic flow meter according to claim 1, wherein: the end face, close to the pipeline, of the support (2) is a curved surface, and the curved surface is arranged along the outer wall of the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023349899.8U CN213842279U (en) | 2020-12-31 | 2020-12-31 | Outer formula ultrasonic flowmeter that presss from both sides convenient to use |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023349899.8U CN213842279U (en) | 2020-12-31 | 2020-12-31 | Outer formula ultrasonic flowmeter that presss from both sides convenient to use |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115420345A (en) * | 2022-08-04 | 2022-12-02 | 江阴市神州测控设备有限公司 | High-precision adjustment type symmetrical flow meter |
| CN116223839A (en) * | 2023-03-27 | 2023-06-06 | 太原市海通自动化技术有限公司 | A Method for Improving the Accuracy of Air Velocity Measurement in Gas-Solid Two-Phase Flow Pipeline |
| CN119268780A (en) * | 2024-10-25 | 2025-01-07 | 东莞市元益自动化科技有限公司 | An easy-to-use non-contact water flow sensor |
| CN120293240A (en) * | 2025-06-09 | 2025-07-11 | 江阴市神州测控设备有限公司 | A multi-stage vortex suppression type high-precision long-diameter nozzle flowmeter |
-
2020
- 2020-12-31 CN CN202023349899.8U patent/CN213842279U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115420345A (en) * | 2022-08-04 | 2022-12-02 | 江阴市神州测控设备有限公司 | High-precision adjustment type symmetrical flow meter |
| CN116223839A (en) * | 2023-03-27 | 2023-06-06 | 太原市海通自动化技术有限公司 | A Method for Improving the Accuracy of Air Velocity Measurement in Gas-Solid Two-Phase Flow Pipeline |
| CN119268780A (en) * | 2024-10-25 | 2025-01-07 | 东莞市元益自动化科技有限公司 | An easy-to-use non-contact water flow sensor |
| CN120293240A (en) * | 2025-06-09 | 2025-07-11 | 江阴市神州测控设备有限公司 | A multi-stage vortex suppression type high-precision long-diameter nozzle flowmeter |
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