Gas ultrasonic flowmeter

Abstract

The application discloses a kind of gas ultrasonic flowmeter, it is related to ultrasonic flowmeter equipment technical field, including flow monitoring mechanism, further include: the support installation mechanism, the support installation mechanism is set in the bottom of the flow monitoring mechanism, the beneficial effect of the present application: the present application is provided with flow monitoring mechanism and support installation mechanism, realize the normal assembly of support installation mechanism and flow monitoring mechanism, two support foot base can be adjusted installation angle according to installation scene, portable handle is conveniently held by artificial installation, the stability when equipment is placed is improved by counterweight and reinforcing side plate cooperation;The application is provided with sealing connection mechanism and pipeline limiting mechanism, eliminate the uncertain inherent delay of multiple sensors and processing circuit, the characteristics such as measurement accuracy, while multiplexing sound channel can be used as redundancy backup, even if individual sensor is damaged, gas ultrasonic flowmeter can still work normally, greatly improve the reliability of detection.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic flow meter technology, specifically to a gas ultrasonic flow meter. Background Technology

[0002] An ultrasonic gas flow meter is an advanced flow measurement device that utilizes ultrasonic technology to accurately measure and analyze gas flow. It measures the velocity and volume of gas flowing through the device by sending and receiving ultrasonic signals. When the ultrasonic signal passes through the gas flow, it is affected by the gas flow velocity, causing a change in the frequency of the ultrasonic signal. Based on the Doppler effect, this frequency change during flow is used to calculate the gas flow rate. Specifically, when a sound wave passes through a fluid, it propagates at a specific speed, which is related to the fluid's density and pressure. As the fluid moves along the pipe, its velocity increases or decreases, causing a change in the propagation speed of the sound wave. By measuring the time difference of sound wave propagation at different locations, the flow velocity and flow rate can be calculated.

[0003] Chinese Patent Publication No. CN 207066523 U discloses a gas ultrasonic flow meter. This invention features a cross-shaped inlet and outlet section, increasing the flow channel length and allowing for a smooth transition of airflow from the inlet to the measuring section. The inlet is a circular pipe, while the measuring section is flat. Within the measuring section, guide vanes divide the flow channel into upper and lower layers, each with a pair of ultrasonic transducers arranged in a cross-shaped configuration. This invention increases the length of the measuring pipe and adds guide vanes to the measuring section for layered flow channel processing, thus stabilizing the flow velocity and reducing noise interference caused by fluid fluctuations.

[0004] However, the above solutions still have the following problems: the ultrasonic flow meter has poor sealing connection, which often leads to leakage; the ultrasonic flow meter has poor stability when placed, which makes it unsuitable for different installation scenarios and has low overall flexibility; and it cannot be remotely controlled and managed, thus failing to meet the requirements for normal use. Therefore, this invention needs to design a gas ultrasonic flow meter to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a gas ultrasonic flow meter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a gas ultrasonic flow meter, comprising a flow monitoring mechanism, and further comprising:

[0007] The supporting installation mechanism is located at the bottom of the flow monitoring mechanism;

[0008] The sealing connection mechanism is disposed on both sides of the flow monitoring mechanism and is symmetrically distributed.

[0009] The pipeline limiting mechanism is located on the side of the two sealing connection mechanisms that is away from the flow monitoring mechanism.

[0010] In a preferred embodiment of the present invention, the flow monitoring mechanism includes a flow monitoring base and a top mounting plate. The top mounting plate is fixedly connected to the top of the flow monitoring base. A protective cover is mounted above the top mounting plate. A display panel is mounted on the outer side of the protective cover. A data display screen is fixedly connected to the outer side of the display panel. A flashing light is fixedly connected to the top of the flow monitoring base and to one side of the top mounting plate. A rotating rod is installed between the top mounting plate and the protective cover. The rotating rod is fixedly connected to the top mounting plate. A damping turntable is fixedly connected to the top of the rotating rod. The damping turntable is rotatably connected to the bottom of the protective cover. Control knobs are installed on both sides of the protective cover. Monitoring data can be viewed on-site through the display panel and the data display screen. The flashing light is used for on-site flashing warning. The damping turntable cooperates to rotate the entire protective cover. Its damping value is selected to be a large value, that is, the protective cover will only rotate when manual or heavy force is applied to the damping turntable to avoid equipment deviation. Manual control is performed through two control knobs, which is convenient for operators to operate and use.

[0011] In a preferred embodiment of the present invention, the support mounting mechanism includes a counterweight and support feet. A counterweight is mounted on the bottom of the flow monitoring base. A limiting sleeve is fixedly connected to the bottom of the counterweight. A load-bearing rod is installed inside the limiting sleeve. Protective sleeves are fitted on both sides of the load-bearing rod. A portable handle is fixedly connected to the outer sides of the two protective sleeves. A support base is fixedly connected to the bottom of the limiting sleeve. Support feet are rotatably connected to the bottom of the load-bearing rod and on both sides of the support base. A fixing block is fitted on the outer side of the portable handle. The bottom is fixedly connected to a reinforcing side plate, one side of which is connected to a load-bearing rod. The top of the counterweight is rotatably connected to an installation rod extending to the bottom of the flow monitoring seat. The flow monitoring seat and the counterweight are installed by means of the installation rod, realizing the normal assembly of the support installation mechanism and the flow monitoring mechanism. During normal support operation, it is supported by the support base. The two support feet can be adjusted according to the installation scenario. The portable handle is convenient for manual gripping and installation. The combination of the counterweight and the reinforcing side plate improves the stability of the equipment when placed.

[0012] In a preferred embodiment of the present invention, the sealing connection mechanism includes a sealing connection disc and a first sealing sleeve. Sealing connection discs are installed on both sides of the flow monitoring mechanism. A first sealing sleeve is installed on one side of each of the two sealing connection discs. A first gasket extending outward is installed inside each of the two first sealing sleeves. A second sealing sleeve is installed on the other side of each of the two sealing connection discs. A second gasket extending outward is installed inside each of the two second sealing sleeves. A shock-absorbing spring extending into the first and second sealing sleeves is installed inside each of the two sealing connection discs. Symmetrically distributed mounting holes are provided on both sides of each of the two first sealing sleeves. During installation, the sealing connection mechanism is installed in the following order: first gasket, first sealing sleeve, shock-absorbing spring, sealing connection disc, second sealing sleeve, and second gasket. This combination improves the sealing effect during actual use and reduces safety hazards caused by leakage.

[0013] In a preferred embodiment of the present invention, the pipe limiting mechanism includes a pipe limiting frame and a sound-absorbing inner gasket. A pipe limiting frame is provided on the side of each of the two first sealing sleeves away from the sealing connecting disc. A positioning screw is rotatably connected inside each of the two pipe limiting frames. A positioning block is provided at the bottom end of each of the two positioning screws. A rotating cap is installed at the top end of each of the two positioning screws, and the top end of each of the two positioning screws penetrates through the pipe limiting frame. Symmetrically distributed levers are fixedly connected to the outer sides of the two rotating caps. The interior of the two pipe limiting frames... Furthermore, limiting inner plates are fixedly connected to both sides of the positioning block. The inner wall of the pipe limiting frame is equipped with a sound-absorbing inner pad. When connecting an external pipe, the external pipe passes through the inside of the sound-absorbing inner pad in sequence through the first sealing sleeve, the sealing connecting plate, the second sealing sleeve, and the sealing flange until it enters the flow monitoring seat. At this time, by manually rotating the lever, the rotating cap is rotated, which in turn rotates the positioning screw, causing the positioning block at the bottom to gradually apply force to the external pipe, thus achieving a limiting effect. This also meets the installation and use requirements of pipes of different shapes and specifications, improving the overall flexibility of use.

[0014] In a preferred embodiment of the present invention, a sealing flange is installed between the flow monitoring mechanism and the sealing connection mechanism. An adsorption pad is installed on the side of each of the two sealing flanges that is far apart from each other. The interior of each of the two sealing flanges is provided with equally spaced and circularly distributed mounting grooves. Multiple mounting grooves are used in conjunction with mounting bolts to facilitate the reinforcement and installation of multiple sealing flanges. By installing an adsorption pad on the outside of the sealing flange, the connection sealing effect is improved when it is installed with other equipment and pipelines.

[0015] In a preferred embodiment of the present invention, the flow monitoring base has an internal channel. Two ultrasonic sensors, a first and a third, are installed inside the internal channel, extending into the flow monitoring base. A second ultrasonic sensor is positioned between the first and third ultrasonic sensors on the same side. A first and a second sound channel are arranged between the two first ultrasonic sensors in an S-shaped configuration. A third and a fourth sound channel are arranged between the two second ultrasonic sensors, also in an S-shaped configuration. The ultrasonic flow meter employs a multi-channel design with a fifth and sixth channel arranged in an S-shape between the acoustic sensors. A noise-reducing pad is installed on the inner wall of the flow monitoring base. Through the coordination of the first, second, third, fourth, fifth, and sixth channels, the ultrasonic flow meter features a multi-channel design with high noise immunity. It can detect eddies and asymmetrical flows, eliminate the inherent delays of multiple sensors and processing circuits, and offers precise measurement. Furthermore, the multiplexed channels provide redundancy, ensuring the ultrasonic flow meter continues to function even if individual sensors fail, significantly improving detection reliability.

[0016] In a preferred embodiment of the present invention, mounting side plates are installed on both sides of the two pipe limiting brackets. The outer sides of the four mounting side plates are threaded with first positioning bolts extending into the pipe limiting brackets. The outer sides of the four mounting side plates are threaded with second positioning bolts extending into the first washer. The second positioning bolts are all located on one side of the first positioning bolts and are reinforcedly connected to the first sealing sleeve through the mounting holes on the outer side of the first washer. This simultaneously achieves a reinforced connection between the sealing connection mechanism and the pipe limiting mechanism, facilitating quick assembly and disassembly during overall use.

[0017] In a preferred embodiment of the present invention, a wireless transceiver is fixedly connected to the top of the flow monitoring base, on the side of the top mounting plate away from the flashing light. A main control board is fixedly connected inside the wireless transceiver, and a control chip is fixedly connected to the outside of the main control board. The control knob, flashing light, wireless transceiver, display panel, data display screen, first ultrasonic sensor, second ultrasonic sensor, and third ultrasonic sensor are all electrically connected to the control chip. The control chip is used to adjust the operation of the control knob, flashing light, wireless transceiver, display panel, data display screen, first ultrasonic sensor, second ultrasonic sensor, and third ultrasonic sensor, thereby realizing the normal management of the equipment.

[0018] In a preferred embodiment of the present invention, the control mechanism is further included. The control mechanism is externally located and controlled by a control chip. The control mechanism includes a central control unit, a flow monitoring unit, a data display unit, and a field early warning unit. The central control unit, the flow monitoring unit, the data display unit, and the field early warning unit are all communicatively connected to the control chip.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention is equipped with a flow monitoring mechanism and a support installation mechanism. The monitoring data can be viewed on-site through the display panel and data display screen. The flashing light is used for on-site flashing early warning. The damping turntable is used to rotate the entire protective cover. The damping value is selected to be a large value, that is, the protective cover will only rotate when a manual or heavy force is applied to the damping turntable, so as to avoid equipment deviation. It is manually controlled by two control knobs, which is convenient for staff to operate and use. The flow monitoring seat and counterweight are installed by the installation rod, realizing the normal assembly of the support installation mechanism and the flow monitoring mechanism. During normal support operation, it is supported by the support base. The two support feet can be adjusted for the installation angle according to the installation scenario. The portable handle is convenient for manual gripping and installation. The counterweight and reinforced side plate are used to improve the stability of the equipment when it is placed.

[0021] 2. This invention features a sealing connection mechanism and a pipe limiting mechanism, which simultaneously reinforce the connection between the sealing connection mechanism and the pipe limiting mechanism, facilitating quick assembly and disassembly during overall use. Multiple mounting slots, used in conjunction with mounting bolts, facilitate the reinforcement of multiple sealing flanges. An adsorption pad is installed on the outside of the sealing flange to improve the sealing effect when installed with other equipment and pipelines. The ultrasonic flow meter employing a multi-channel design with high noise immunity, capable of detecting eddies and asymmetrical flows, eliminating the inherent delays of multiple sensors and processing circuits, and offering precise measurement. Furthermore, the multiple channels serve as redundancy, ensuring the gas ultrasonic flow meter continues to operate normally even if individual sensors fail, greatly improving detection reliability. Attached Figure Description

[0022] Figure 1 This is a first-view schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a second-view schematic diagram of the overall structure of the present invention;

[0024] Figure 3 This is a third-view schematic diagram of the overall structure of the present invention;

[0025] Figure 4 This is a fourth-view schematic diagram of the overall structure of the present invention;

[0026] Figure 5 This is an enlarged schematic diagram of the support and mounting mechanism of the present invention;

[0027] Figure 6 This is an exploded view of the sealing connection mechanism of the present invention;

[0028] Figure 7 This is a schematic diagram showing the connection between the sealing connection mechanism and the pipe limiting mechanism of the present invention;

[0029] Figure 8 This is an enlarged schematic diagram of the pipeline limiting mechanism of the present invention;

[0030] Figure 9 This is an enlarged view of the flow monitoring mechanism structure of the present invention;

[0031] Figure 10 This is an internal diagram of the flow monitoring base structure of the present invention.

[0032] In the picture:

[0033] 1. Flow monitoring base; 11. Top mounting plate; 12. Protective cover; 13. Rotating rod; 14. Control knob; 15. Flashing light; 16. Wireless transceiver; 17. Display panel; 18. Data display screen; 19. Damping dial;

[0034] 2. Support base; 21. Support feet; 22. Load-bearing rod; 23. Protective sleeve; 24. Counterweight block; 25. Mounting rod; 26. Portable handle; 27. Reinforced side plate; 28. Fixing block; 29. ​​Limiting sleeve;

[0035] 3. Sealing connecting plate; 31. First sealing sleeve; 32. First washer; 33. Mounting hole; 34. Second sealing sleeve; 35. Second washer; 36. Shock-absorbing spring;

[0036] 4. Pipeline limiting bracket; 41. Noise-absorbing inner pad; 42. Positioning block; 43. Positioning screw; 44. Rotating cap; 45. Toggle lever; 46. Limiting inner plate; 47. Mounting side plate; 48. First positioning bolt; 49. Second positioning bolt;

[0037] 5. Noise-reducing inner pad;

[0038] 6. Sealing flange; 61. Mounting groove; 62. Absorbent pad;

[0039] 7. Internal channel; 71. First ultrasonic sensor; 72. Second ultrasonic sensor; 73. Third ultrasonic sensor; 74. First channel; 75. Second channel; 76. Third channel; 77. Fourth channel; 78. Fifth channel; 79. Sixth channel. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1

[0042] Please see Figures 1-10 This invention provides a technical solution: a gas ultrasonic flow meter, including a flow monitoring mechanism, which includes a flow monitoring base 1 and a top mounting plate 11. The top mounting plate 11 is fixedly connected to the top of the flow monitoring base 1. A protective cover 12 is mounted above the top mounting plate 11. A display panel 17 is mounted on the outside of the protective cover 12. A data display screen 18 is fixedly connected to the outside of the display panel 17. A flashing light 15 is fixedly connected to the top of the flow monitoring base 1 and to one side of the top mounting plate 11. A rotating rod 13 is installed between the top mounting plate 11 and the protective cover 12, and the rotating rod 13 is fixedly connected to the top mounting plate 11. A damping turntable 19 is fixedly connected to the top of the rotating rod 13. The damping turntable 19 is rotatably connected to the bottom of the protective cover 12. Control knobs 14 are installed on both sides of the protective cover 12. Monitoring data can be viewed on-site through the display panel 17 and the data display screen 18. The flashing light 15 is used for on-site flashing warning. The damping turntable 19 cooperates to rotate the entire protective cover 12. Its damping value is selected to be a large value, that is, the protective cover 12 will only rotate when manual or heavy force is applied to the damping turntable 19, so as to avoid equipment deviation. It is manually controlled through two control knobs 14, which is convenient for staff to operate and use.

[0043] A support mounting mechanism is installed at the bottom of the flow monitoring mechanism. The support mounting mechanism includes a counterweight 24 and support feet 21. The counterweight 24 is installed at the bottom of the flow monitoring base 1. A limit sleeve 29 is fixedly connected to the bottom of the counterweight 24. A load-bearing rod 22 is installed inside the limit sleeve 29. Protective sleeves 23 are fitted on both sides of the load-bearing rod 22. Portable handles 26 are fixedly connected to the outer sides of the two protective sleeves 23. A support base 2 is fixedly connected to the bottom of the limit sleeve 29. Support feet 21 are rotatably connected to the bottom of the load-bearing rod 22 and on both sides of the support base 2. A fixing block 28 is fitted to the outer side of the portable handle 26. The bottom of the fixed block 28 is fixedly connected to a reinforcing side plate 27. One side of the reinforcing side plate 27 is connected to the load-bearing rod 22. The top of the counterweight block 24 is rotatably connected to an installation rod 25 extending to the bottom of the flow monitoring seat 1. The flow monitoring seat 1 and the counterweight block 24 are installed by the installation rod 25, realizing the normal assembly of the support installation mechanism and the flow monitoring mechanism. During normal support operation, it is supported by the support base 2. The two support feet 21 can be adjusted according to the installation scenario. The portable handle 26 is convenient for manual gripping and installation. The stability of the equipment when placed is improved by the combination of the counterweight block 24 and the reinforcing side plate 27.

[0044] A sealing connection mechanism is symmetrically distributed on both sides of the flow monitoring mechanism. The sealing connection mechanism includes a sealing connection disc 3 and a first sealing sleeve 31. A sealing connection disc 3 is installed on each side of the flow monitoring mechanism. A first sealing sleeve 31 is installed on one side of each of the two sealing connection discs 3. A first gasket 32 ​​extending outwards is installed inside each of the two first sealing sleeves 31. A second sealing sleeve 34 is installed on the other side of each of the two second sealing sleeves 34. A second gasket 35 extending outwards is installed inside each of the two second sealing sleeves 3. A shock-absorbing spring 36 extending into the first sealing sleeve 31 and the second sealing sleeve 34 is installed inside each of the two sealing connection discs 3. Symmetrically distributed mounting holes 33 are provided on both sides of each of the two first sealing sleeves 31. During installation, the sealing connection mechanism is installed in the following order: first gasket 32, first sealing sleeve 31, shock-absorbing spring 36, sealing connection disc 3, second sealing sleeve 34, and second gasket 35. This combination improves the sealing effect during actual use and reduces safety hazards caused by leakage.

[0045] The pipeline limiting mechanism is located on the side of the two sealing connection mechanisms away from the flow monitoring mechanism. The pipeline limiting mechanism includes a pipeline limiting frame 4 and a sound-absorbing inner pad 41. A pipeline limiting frame 4 is provided on the side of each of the two first sealing sleeves 31 away from the sealing connection disc 3. Positioning screws 43 are rotatably connected inside each of the two pipeline limiting frames 4. Positioning blocks 42 are provided at the bottom end of each of the two positioning screws 43. Rotating caps 44 are installed at the top end of each of the two positioning screws 43, and the top ends of both positioning screws 43 penetrate the pipeline limiting frame 4. Symmetrically distributed levers 45 are fixedly connected to the outside of the two rotating caps 44. Limiting inner plates 46 are fixedly connected inside the two pipeline limiting frames 4 and on both sides of the positioning blocks 42. A sound-absorbing inner pad 41 is installed on the inner wall of the pipeline limiting frame 4. When connecting an external pipeline, the external pipeline passes through the sound-absorbing inner pad 41 sequentially through the first sealing sleeve 31, the sealing connection disc 3, and the second sealing disc 3. The sleeve 34 and sealing flange 6 are inserted into the flow monitoring seat 1. At this time, by manually rotating the lever 45, the rotating cap 44 is rotated, which in turn rotates the positioning screw 43. This causes the positioning block 42 at the bottom to gradually apply force to the external pipe, achieving a limiting effect. This also meets the installation requirements of pipes of different shapes and specifications, improving the overall flexibility of use. Both sides of the two pipe limiting frames 4 are equipped with mounting side plates 47. The outer sides of the four mounting side plates 47 are threaded with first positioning bolts 48 extending into the pipe limiting frame 4. The outer sides of the four mounting side plates 47 are also threaded with second positioning bolts 49 extending into the first washer 32. The second positioning bolts 49 are all located on one side of the first positioning bolts 48 and are reinforcedly connected to the first sealing sleeve 31 through the mounting hole 33 on the outer side of the first washer 32. This simultaneously achieves a reinforced connection between the sealing connection mechanism and the pipe limiting mechanism, facilitating quick assembly and disassembly during overall use.

[0046] Please see Figures 1-4 , Figure 9 A sealing flange 6 is installed between the flow monitoring mechanism and the sealing connection mechanism. An adsorption pad 62 is installed on the side of the two sealing flanges 6 that is far apart from each other. The interior of the two sealing flanges 6 is provided with mounting grooves 61 that are evenly distributed and arranged in a circular shape.

[0047] This invention uses multiple mounting slots 61 in conjunction with mounting bolts to facilitate the reinforcement and installation of multiple sealing flanges 6. By installing an adsorption pad 62 on the outside of the sealing flange 6, the connection sealing effect is improved when it is installed with other equipment and pipelines.

[0048] Please see Figures 1-4 , Figure 10The flow monitoring base 1 has an internal channel 7. Inside the internal channel 7, two first ultrasonic sensors 71 and third ultrasonic sensors 73 are installed, extending into the flow monitoring base 1. On the same side, a second ultrasonic sensor 72 is arranged between the first ultrasonic sensor 71 and the third ultrasonic sensor 73. A first channel 74 and a second channel 75 are arranged between the two first ultrasonic sensors 71, and the first channel 74 and the second channel 75 are arranged in an S-shape. A third channel 76 and a fourth channel 77 are arranged between the two second ultrasonic sensors 72, and the third channel 76 and the fourth channel 77 are arranged in an S-shape. A fifth channel 78 and a sixth channel 79 are arranged between the two third ultrasonic sensors 73, and the fifth channel 78 and the sixth channel 79 are arranged in an S-shape. A noise reduction pad 5 is installed on the inner wall of the flow monitoring base 1, which works in conjunction with the first channel 74, the second channel 75, the third channel 76, the fourth channel 77, the fifth channel 78, and the sixth channel 79.

[0049] The ultrasonic flow meter, which adopts a multiplexed multi-channel design, has high noise immunity, can detect eddies and asymmetrical flows, eliminates the inherent delay of multiple sensors and processing circuits, and has high measurement accuracy. At the same time, the multiplexed channels can serve as redundant backups, so even if individual sensors are damaged, the gas ultrasonic flow meter can still work normally, which greatly improves the reliability of detection.

[0050] Please see Figures 1-10 A wireless transceiver 16 is fixedly connected to the top of the flow monitoring base 1 and to the side of the top mounting plate 11 away from the flashing light 15. A main control board is fixedly connected inside the wireless transceiver 16, and a control chip is fixedly connected to the outside of the main control board. The control knob 14, flashing light 15, wireless transceiver 16, display panel 17, data display screen 18, first ultrasonic sensor 71, second ultrasonic sensor 72 and third ultrasonic sensor 73 are all electrically connected to the control chip.

[0051] The control chip is used to adjust the operation of the control knob 14, flashing light 15, wireless transceiver 16, display panel 17, data display screen 18, first ultrasonic sensor 71, second ultrasonic sensor 72 and third ultrasonic sensor 73, realizing the normal management of the equipment. The first ultrasonic sensor 71, second ultrasonic sensor 72 and third ultrasonic sensor 73 measure environmental parameters, convert them into signals and send them to the control chip. The control chip receives the signals and processes them, and generates corresponding control signals according to the preset control algorithm.

[0052] Example 2

[0053] Please see Figures 1-10The present invention provides a technical solution: a gas ultrasonic flow meter, which further includes a control mechanism. The control mechanism is externally located and controlled by a control chip. The control mechanism includes a central control unit, a flow monitoring unit, a data display unit, and a field early warning unit. The central control unit, the flow monitoring unit, the data display unit, and the field early warning unit are all communicatively connected to the control chip.

[0054] The central control unit is used to monitor the operation status of the central flow monitoring unit, data display unit, and on-site early warning unit.

[0055] The flow monitoring unit is used to monitor the data recorded by the first ultrasonic sensor 71, the second ultrasonic sensor 72 and the third ultrasonic sensor 73 in real time;

[0056] The data display unit is used to monitor the field data recorded by the display panel 17 and the data display screen 18 in real time;

[0057] The on-site early warning unit is used to achieve different levels of early warning by using the flashing light 15 in a continuous flashing mode or an intermittent flashing mode.

[0058] Working principle:

[0059] The monitoring data can be viewed on-site through the display panel 17 and the data display screen 18, and the flashing light 15 is used for on-site flashing warning processing;

[0060] The damping turntable 19 is used to rotate the entire protective cover 12. The damping value is selected to be large, that is, the protective cover 12 will only rotate when manual or heavy force is applied to the damping turntable 19, so as to avoid equipment deviation. It is manually controlled by two control knobs 14, which is convenient for staff to operate and use. The flow monitoring seat 1 and the counterweight 24 are installed by the mounting rod 25 to realize the normal assembly of the support installation mechanism and the flow monitoring mechanism.

[0061] During normal support operations, the equipment is supported by the support base 2. The two support feet 21 can be adjusted to adjust the installation angle according to the installation scenario. The portable handle 26 makes it convenient for manual gripping and installation. The stability of the equipment when placed is improved by the combination of the counterweight 24 and the reinforced side plate 27.

[0062] The control chip is used to adjust the operation of the control knob 14, flashing light 15, wireless transceiver 16, display panel 17, data display screen 18, first ultrasonic sensor 71, second ultrasonic sensor 72 and third ultrasonic sensor 73, realizing the normal management of the equipment. The first ultrasonic sensor 71, second ultrasonic sensor 72 and third ultrasonic sensor 73 measure environmental parameters, convert them into signals and send them to the control chip. The control chip receives the signals and processes them, and generates corresponding control signals according to the preset control algorithm.

[0063] During installation, the sealing connection mechanism is installed in the following order: first washer 32, first sealing sleeve 31, shock-absorbing spring 36, sealing connecting plate 3, second sealing sleeve 34, and second washer 35. The above combination improves the sealing effect during actual use and reduces the safety hazards caused by leakage.

[0064] When connecting external pipes, the external pipes pass through the inside of the sound-absorbing inner gasket 41 in sequence through the first sealing sleeve 31, the sealing connecting plate 3, the second sealing sleeve 34, and the sealing flange 6 until they enter the flow monitoring seat 1. At this time, by manually turning the lever 45, the rotating cap 44 is rotated, which in turn rotates the positioning screw 43, causing the positioning block 42 at the bottom to gradually apply force to the external pipes, thus achieving a limiting effect. This also meets the installation and use requirements of pipes of different shapes and specifications, improving the overall flexibility of use.

[0065] Two pipe limiting brackets 4 are each equipped with mounting side plates 47 on both sides. The outer sides of the four mounting side plates 47 are each threaded with a first positioning bolt 48 extending into the inside of the pipe limiting bracket 4. The outer sides of the four mounting side plates 47 are each threaded with a second positioning bolt 49 extending into the inside of the first washer 32. The second positioning bolts 49 are all located on one side of the first positioning bolts 48 and are reinforcedly connected to the first sealing sleeve 31 through the mounting hole 33 on the outer side of the first washer 32. This simultaneously achieves a reinforced connection between the sealing connection mechanism and the pipe limiting mechanism, facilitating quick assembly and disassembly during overall use.

[0066] Multiple mounting slots 61, used in conjunction with mounting bolts, facilitate the reinforcement and installation of multiple sealing flanges 6. Adsorption pads 62 are installed on the outside of the sealing flanges 6 to improve the sealing effect when installed with other equipment and pipelines. The ultrasonic flow meter, employing a multi-channel design with multiplexing, features high noise immunity, can detect eddies and asymmetrical flows, eliminates the inherent delays of multiple sensors and processing circuits, and offers precise measurement. Furthermore, the multiplexing channels provide redundancy, ensuring the gas ultrasonic flow meter continues to operate normally even if individual sensors fail, greatly improving detection reliability.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas ultrasonic flow meter, comprising a flow monitoring mechanism, characterized in that, Also includes: A support mounting mechanism is provided at the bottom of the flow monitoring mechanism; A sealing connection mechanism is provided on both sides of the flow monitoring mechanism and is symmetrically distributed. A pipe limiting mechanism is provided, wherein the pipe limiting mechanism is disposed on the side of the two sealing connection mechanisms away from the flow monitoring mechanism; The flow monitoring mechanism includes a flow monitoring base (1) and a top mounting plate (11). The top of the flow monitoring base (1) is fixedly connected to the top of the top mounting plate (11). A protective cover (12) is installed above the top mounting plate (11). A display panel (17) is installed on the outside of the protective cover (12). A data display screen (18) is fixedly connected to the outside of the display panel (17). A flashing light (15) is fixedly connected to the top of the flow monitoring base (1) and to one side of the top mounting plate (11). A rotating rod (13) is installed between the top mounting plate (11) and the protective cover (12). The rotating rod (13) is fixedly connected to the top mounting plate (11). A damping turntable (19) is fixedly connected to the top of the rotating rod (13). Control knobs (14) are installed on both sides of the protective cover (12). The support installation mechanism includes a counterweight (24) and support feet (21). The counterweight (24) is installed at the bottom of the flow monitoring seat (1). A limit sleeve (29) is fixedly connected to the bottom of the counterweight (24). A load-bearing rod (22) is installed inside the limit sleeve (29). Protective sleeves (23) are fitted on both sides of the load-bearing rod (22). A portable handle (26) is fixedly connected to the outer side of the two protective sleeves (23). A support base (2) is fixedly connected to the bottom of the limit sleeve (29). Support feet (21) are rotatably connected to the bottom of the load-bearing rod (22) and on both sides of the support base (2). A fixing block (28) is fitted to the outer side of the portable handle (26). A reinforcing side plate (27) is fixedly connected to the bottom of the fixing block (28). An installation rod (25) extending to the bottom of the flow monitoring seat (1) is rotatably connected to the top of the counterweight (24). The sealing connection mechanism includes a sealing connection disc (3) and a first sealing sleeve (31). The flow monitoring mechanism has sealing connection discs (3) installed on both sides. A first sealing sleeve (31) is installed on one side of each of the two sealing connection discs (3). A first gasket (32) extending outwards is installed inside each of the two first sealing sleeves (31). A second sealing sleeve (34) is installed on the other side of each of the two sealing connection discs (3). A second gasket (35) extending outwards is installed inside each of the two second sealing sleeves (34). Shock-absorbing springs (36) extending into the first sealing sleeve (31) and the second sealing sleeve (34) are installed inside the two sealing connection discs (3). Symmetrically distributed mounting holes (33) are provided on both sides of each of the two first sealing sleeves (31). The pipe limiting mechanism includes a pipe limiting frame (4) and a sound-absorbing inner pad (41). A pipe limiting frame (4) is provided on the side of each of the two first sealing sleeves (31) away from the sealing connecting disc (3). A positioning screw (43) is rotatably connected inside each of the two pipe limiting frames (4). A positioning block (42) is provided at the bottom end of each of the two positioning screws (43). A rotating cap (44) is installed at the top end of each of the two positioning screws (43), and the top end of each of the two positioning screws (43) penetrates through the pipe limiting frame (4). Symmetrically distributed levers (45) are fixedly connected to the outside of each of the two rotating caps (44). A limiting inner plate (46) is fixedly connected inside each of the two pipe limiting frames (4) and on both sides of the positioning block (42). A sound-absorbing inner pad (41) is installed on the inner wall of the pipe limiting frame (4). The flow monitoring base (1) has an internal channel (7) inside. Two first ultrasonic sensors (71) and third ultrasonic sensors (73) extending into the flow monitoring base (1) are installed inside the internal channel (7). A second ultrasonic sensor (72) is provided between the first ultrasonic sensor (71) and the third ultrasonic sensor (73) on the same side. A first channel (74) and a second channel (75) are provided between the two first ultrasonic sensors (71). A third channel (76) and a fourth channel (77) are provided between the two second ultrasonic sensors (72). A fifth channel (78) and a sixth channel (79) are provided between the two third ultrasonic sensors (73). A noise reduction pad (5) is installed on the inner wall of the flow monitoring base (1).

2. The gas ultrasonic flow meter according to claim 1, characterized in that: A sealing flange (6) is installed between the flow monitoring mechanism and the sealing connection mechanism. An adsorption pad (62) is installed on the side of the two sealing flanges (6) that are far apart. The interior of the two sealing flanges (6) is provided with mounting grooves (61) that are evenly distributed and arranged in a circular shape.

3. The gas ultrasonic flow meter according to claim 2, characterized in that: Two of the pipe limiting brackets (4) are equipped with mounting side plates (47) on both sides. The outer sides of the four mounting side plates (47) are threaded with first positioning bolts (48) extending into the pipe limiting bracket (4). The outer sides of the four mounting side plates (47) are threaded with second positioning bolts (49) extending into the first washer (32).

4. The gas ultrasonic flow meter according to claim 3, characterized in that: A wireless transceiver (16) is fixedly connected to the top of the flow monitoring base (1) and to the side of the top mounting plate (11) away from the flashing light (15). A main control board is fixedly connected inside the wireless transceiver (16), and a control chip is fixedly connected to the outside of the main control board. The control knob (14), flashing light (15), wireless transceiver (16), display panel (17), data display screen (18), first ultrasonic sensor (71), second ultrasonic sensor (72) and third ultrasonic sensor (73) are all electrically connected to the control chip.

5. The gas ultrasonic flow meter according to claim 4, characterized in that: It also includes a control mechanism, which is externally located and controlled by a control chip. The control mechanism includes a central control unit, a flow monitoring unit, a data display unit, and a field early warning unit. The central control unit, the flow monitoring unit, the data display unit, and the field early warning unit are all communicatively connected to the control chip.

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