Gas ultrasonic flowmeter

Abstract

The invention discloses a gas ultrasonic flowmeter, and relates to the technical field of ultrasonic flowmeter equipment.The gas ultrasonic flowmeter comprises a flow monitoring mechanism and further comprises a supporting and installing mechanism, and the supporting and installing mechanism is arranged at the bottom of the flow monitoring mechanism. Normal assembly of the supporting installation mechanism and the flow monitoring mechanism is achieved, the installation angle of the two supporting foot bases can be adjusted according to the installation scene, manual holding installation is facilitated through a portable handle, and the stability of equipment during placement is improved through cooperation of a balancing weight and a reinforcing side plate; the gas ultrasonic flowmeter is provided with the sealing connection mechanism and the pipeline limiting mechanism, has the advantages of eliminating uncertain inherent time delay of a plurality of sensors and a processing circuit, being accurate in measurement and the like, meanwhile, a multiplexing sound channel can serve as a redundant backup, even if an individual sensor is damaged, the gas ultrasonic flowmeter can still work normally, and the detection reliability is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic flowmeter devices, and particularly to a gas ultrasonic flowmeter. Background Technique

[0002] A gas ultrasonic flowmeter is an advanced flow measurement device that uses ultrasonic technology to accurately measure and analyze gas flow. The gas ultrasonic flowmeter measures the speed and volume of gas flowing through the device by transmitting and receiving ultrasonic signals. When the ultrasonic signal passes through the gas flow, it is affected by the gas flow velocity, which in turn causes a change in the frequency of the ultrasonic signal. According to the Doppler effect principle, the frequency change during the flow process will be used to calculate the gas flow. Specifically, when sound waves pass through a fluid, they propagate at a specific speed, which is related to the density and pressure of the fluid. When the fluid moves along the pipeline, its speed increases or decreases, causing the propagation speed of the sound waves to change accordingly. By measuring the time difference of sound wave propagation at different positions, the flow velocity and flow rate can be calculated.

[0003] Chinese Patent Publication No. CN 207066523 U discloses a gas ultrasonic flowmeter. The inlet and outlet sections of the present utility model adopt a cross shape to increase the flow path length, enabling the air flow to smoothly transition from the inlet of the ultrasonic flowmeter to the measurement section. The inlet shape is a round pipe, and the measurement section shape is flat. Inside the measurement section, the flow path is divided into upper and lower layers by a flow guide vane. There is a pair of ultrasonic transducers in each of the upper and lower layers, and the two pairs of ultrasonic transducers are arranged in a cross shape. The present utility model increases the length of the measurement pipeline and adds a flow guide vane in the measurement section for flow path stratification treatment, which can stabilize the flow velocity and reduce the noise interference caused by fluid fluctuations.

[0004] However, the following problems still exist in the above solution: there is a problem with the poor sealing connection effect of the ultrasonic flowmeter, resulting in frequent leakage; there is a problem with the poor stability when the ultrasonic flowmeter is placed, resulting in it being inapplicable to different installation scenarios, with low overall usage flexibility. At the same time, the ultrasonic flowmeter cannot be remotely controlled and managed, unable to meet the requirements of normal use. Therefore, the present invention needs to design a gas ultrasonic flowmeter to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a gas ultrasonic flowmeter to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A gas ultrasonic flowmeter includes a flow monitoring mechanism, and further includes:

[0007] The support and installation mechanism, and the support and installation mechanism is arranged at the bottom of the flow monitoring mechanism;

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

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

[0010] As a preferred embodiment of the present invention, the flow monitoring mechanism includes a flow monitoring base and a top mounting plate. The top of the flow monitoring base is fixedly connected with the top mounting plate. A protective cover is installed above the top mounting plate. A display panel is installed on the outside of the protective cover. A data display screen is fixedly connected to the outside of the display panel. A flashing light is fixedly connected to the top of the flow monitoring base and on 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 with the top mounting plate. A damping turntable is fixedly connected to the top of the rotating rod. The damping turntable is rotatably connected with the bottom of the protective cover. Control knobs are installed on both sides of the protective cover. The 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 processing. The damping turntable cooperates to rotate the overall orientation of the protective cover. The damping value is selected as a large value, that is, only when manual or great force acts on the damping turntable will the protective cover be driven to rotate, avoiding equipment deviation. Manual control is carried out through the two control knobs, which is convenient for the staff to operate and use.

[0011] As a preferred embodiment of the present invention, the support and installation mechanism includes a counterweight and support foot seats. A counterweight is installed at the bottom of the flow monitoring base. A limit sleeve is fixedly connected to the bottom of the counterweight. A load-bearing rod is installed inside the limit sleeve. Protective sleeves are sleeved on both sides of the load-bearing rod. Portable handles are fixedly connected to the outside of the two protective sleeves. A support base is fixedly connected to the bottom of the limit sleeve. Support foot seats are rotatably connected to both sides of the bottom of the load-bearing rod and located at the support base. A fixed block is sleeved on the outside of the portable handle. A reinforcing side plate is fixedly connected to the bottom of the fixed block. One side of the reinforcing side plate is connected to the load-bearing rod. An installation insertion rod extending to the bottom of the flow monitoring base is rotatably connected to the top of the counterweight. The flow monitoring base and the counterweight are installed through the cooperation of the installation insertion rod, realizing the normal assembly of the support and installation mechanism and the flow monitoring mechanism. During normal support operation, support is carried out through the support base. The two support foot seats can adjust the installation angle according to the installation scenario. The portable handle is convenient for manual holding and installation. The stability of the equipment during placement is improved through the cooperation of the counterweight and the reinforcing side plate.

[0012] As a preferred embodiment of the present invention, the sealed connection mechanism includes a sealed connection disk and a first sealing sleeve. Sealed connection disks are installed on both sides of the flow rate monitoring mechanism. A first sealing sleeve is installed on one side of each of the two sealed connection disks. A first gasket extending to the outside 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 sealed connection disks. A second gasket extending to the outside is installed inside each of the two second sealing sleeves. A shock-absorbing spring extending to the inside of the first sealing sleeve and the second sealing sleeve is installed inside each of the two sealed connection disks. Symmetrically distributed mounting holes are provided on both sides of each of the two first sealing sleeves. When installing, the sealed connection mechanism is installed in the order of the first gasket, the first sealing sleeve, the shock-absorbing spring, the sealed connection disk, the second sealing sleeve, and the second gasket. Through the above combination, the sealing effect during actual use is improved, and the potential safety hazard problem caused by leakage is reduced.

[0013] As a preferred embodiment of the present invention, the pipeline limiting mechanism includes a pipeline limiting frame and a sound-absorbing inner pad. Pipeline limiting frames are provided on the sides of the two first sealing sleeves away from the sealed connection disks. A positioning screw is rotatably connected inside each of the two pipeline 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 ends of the two positioning screws penetrate through the pipeline limiting frames. Symmetrically distributed dial rods are fixedly connected to the outside of the two rotating caps. Limiting inner plates are fixedly connected to both sides of the positioning blocks inside the two pipeline limiting frames. A sound-absorbing inner pad is installed on the inner wall of the pipeline limiting frame. When connecting an external pipeline, the external pipeline passes through the first sealing sleeve, the sealed connection disk, the second sealing sleeve, and the sealed flange inside the sound-absorbing inner pad in sequence until it enters the flow rate monitoring seat. At this time, by manually rotating the dial rod, the rotating cap is driven to rotate, the positioning screw is driven to rotate, and the positioning block at the bottom gradually applies force to the external pipeline, achieving a limiting effect. At the same time, it meets the installation and use of pipelines with different shapes and specifications, improving the overall use flexibility.

[0014] As a preferred embodiment of the present invention, sealed flanges are installed between the flow rate monitoring mechanism and the sealed connection mechanism. Adsorption pads are installed on the sides of the two sealed flanges away from each other. Equally spaced and circularly distributed installation grooves are provided inside each of the two sealed flanges. By using the installation bolts in cooperation with the multiple installation grooves, it is convenient to reinforce and install the multiple sealed flanges. By installing an adsorption pad on the outside of the sealed flange, the connection sealing effect is improved when cooperating with the installation of other equipment and pipelines.

[0015] As a preferred embodiment of the present invention, an internal channel is provided inside the flow monitoring base. Two first ultrasonic sensors and a third ultrasonic sensor extending into the flow monitoring base are installed inside the internal channel. A second ultrasonic sensor is arranged between the first ultrasonic sensor and the third ultrasonic sensor on the same side. A first sound channel and a second sound channel are arranged between the two first ultrasonic sensors. The first sound channel and the second sound channel are distributed in an S shape. A third sound channel and a fourth sound channel are arranged between the two second ultrasonic sensors. The third sound channel and the fourth sound channel are distributed in an S shape. A fifth sound channel and a sixth sound channel are arranged between the two third ultrasonic sensors. The fifth sound channel and the sixth sound channel are distributed in an S shape. A noise reduction inner pad is installed on the inner wall of the flow monitoring base. By cooperating with the first sound channel, the second sound channel, the third sound channel, the fourth sound channel, the fifth sound channel and the sixth sound channel, the ultrasonic flowmeter adopting the multiplexed multi-channel design has high anti-noise performance, can detect eddy currents and asymmetric flows, eliminate the uncertain inherent delays of multiple sensors and processing circuits, and has the characteristics of accurate measurement. At the same time, the multiplexed sound channels can be used as redundant backups. Even if individual sensors are damaged, the gas ultrasonic flowmeter can still work normally, greatly improving the reliability of detection.

[0016] As a preferred embodiment of the present invention, mounting side plates are installed on both sides of the two pipe limit frames. Four first positioning bolts extending into the pipe limit frames are threadedly connected to the outside of the four mounting side plates. Four second positioning bolts extending into the first gaskets are threadedly connected to the outside of the four mounting side plates. The second positioning bolts are all located on one side of the first positioning bolts and are fixedly connected to the first sealing sleeve through the mounting holes on the outside of the first gaskets, realizing the reinforcement connection of the sealing connection mechanism and the pipe limit mechanism and facilitating the quick disassembly and assembly during the overall use.

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

[0018] As a preferred embodiment of the present invention, it further includes the control mechanism, which is arranged externally and controlled by a control chip. The control mechanism includes a master control unit, a flow rate monitoring unit, a data display unit, and a on-site warning unit. The master control unit, the flow rate monitoring unit, the data display unit, and the on-site warning unit are all communicatively connected to the control chip.

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

[0020] 1. The present invention is provided with a flow rate monitoring mechanism and a support installation mechanism. The monitoring data can be viewed on-site through a display panel and a data display screen. The flashing lights are used for on-site flashing warning processing. The damping turntable is used to rotate the entire protective cover in all directions. The damping value is selected to be a large value, that is, only when manually or with great force acting on the damping turntable will the protective cover rotate, avoiding equipment deviation. Manual control is carried out through two control knobs, which is convenient for the staff to operate and use. The flow rate monitoring seat and the counterweight are installed through the cooperation of installation rods, realizing the normal assembly of the support installation mechanism and the flow rate monitoring mechanism. During normal support operation, support is carried out through the support base. The two support feet can adjust the installation angle according to the installation scenario. The portable handle is convenient for manual holding and installation. The stability of the equipment during placement is improved through the cooperation of the counterweight and the reinforcement side plate;

[0021] 2. The present invention is provided with a sealing connection mechanism and a pipeline limiting mechanism, and at the same time realizes the reinforced connection of the sealing connection mechanism and the pipeline limiting mechanism, which is convenient for quick disassembly and assembly during overall use. Through the cooperation of multiple installation slots and installation bolts, it is convenient to reinforce and install multiple sealing flange plates. By installing an adsorption pad outside the sealing flange plate, the connection sealing effect is improved when cooperating with other equipment and pipelines. The ultrasonic flowmeter adopting the multiplexed multi-channel design has high anti-noise performance, can detect eddy currents and asymmetric flows, eliminates the uncertain inherent delays of multiple sensors and processing circuits, and has the characteristics of accurate measurement. At the same time, the multiplexed channels can be used as redundant backups. Even if individual sensors are damaged, the gas ultrasonic flowmeter can still work normally, greatly improving the reliability of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention from the first perspective;

[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention from the second perspective;

[0024] Figure 3 It is a schematic diagram of the overall structure of the present invention from the third perspective;

[0025] Figure 4 It is a schematic diagram of the overall structure of the present invention from the fourth perspective;

[0026] Figure 5 Schematic enlarged view of the support and installation mechanism of the present invention;

[0027] Figure 6 Exploded view of the structure of the sealing connection mechanism of the present invention;

[0028] Figure 7 Schematic connection diagram of the sealing connection mechanism and the pipeline limiting mechanism of the present invention;

[0029] Figure 8 Schematic enlarged view of the pipeline limiting mechanism of the present invention;

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

[0031] Figure 10 Internal view of the structure of the flow monitoring seat of the present invention.

[0032] In the figure:

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

[0034] 2. Support base; 21. Support foot seat; 22. Load-bearing rod; 23. Protective sleeve; 24. Counterweight; 25. Installation plug; 26. Portable handle; 27. Reinforcing side plate; 28. Fixed block; 29. Limiting sleeve;

[0035] 3. Sealing connection disc; 31. First sealing sleeve; 32. First washer; 33. Installation hole; 34. Second sealing sleeve; 35. Second washer; 36. Damping spring;

[0036] 4. Pipeline limiting frame; 41. Sound-absorbing inner pad; 42. Positioning block; 43. Positioning screw; 44. Rotating cap; 45. Lever; 46. Limiting inner plate; 47. Installation side plate; 48. First positioning bolt; 49. Second positioning bolt;

[0037] 5. Noise reduction inner pad;

[0038] 6. Sealing flange; 61. Installation groove; 62. Adsorption pad;

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

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Embodiment 1

[0042] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a gas ultrasonic flowmeter, including a 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 mounting plate 11. Above the top mounting plate 11, a protective cover 12 is installed. Outside the protective cover 12, a display panel 17 is installed. Outside the display panel 17, a data display screen 18 is fixedly connected. On the top of the flow monitoring base 1 and on one side of the top mounting plate 11, a flashing light 15 is fixedly connected. Between the top mounting plate 11 and the protective cover 12, a rotating rod 13 is installed. The rotating rod 13 is fixedly connected to the top mounting plate 11. The top of the rotating rod 13 is fixedly connected to a damping turntable 19. 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. The 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 processing. The damping turntable 19 cooperates to rotate the overall orientation of the protective cover 12. A large damping value is selected, that is, only when manual or significant force acts on the damping turntable 19 will the protective cover 12 be driven to rotate, avoiding equipment deviation. Manual control is carried out through the two control knobs 14, which is convenient for staff to operate and use.

[0043] Support installation mechanism, the support installation mechanism is arranged at the bottom of the flow monitoring mechanism; the support installation mechanism includes a counterweight block 24 and support pedestals 21. A counterweight block 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 block 24. A load-bearing rod 22 is installed inside the limit sleeve 29. Protective sleeves 23 are sleeved 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 pedestals 21 are rotatably connected to both sides of the bottom of the load-bearing rod 22 and located at the bottom of the support base 2. A fixed block 28 is sleeved on the outer side of the portable handle 26. A reinforcing side plate 27 is fixedly connected to the bottom of the fixed block 28. One side of the reinforcing side plate 27 is connected to the load-bearing rod 22. An installation insertion rod 25 extending to the bottom of the flow monitoring seat 1 is rotatably connected to the top of the counterweight block 24. The flow monitoring seat 1 and the counterweight block 24 are installed by matching the installation insertion rod 25, realizing the normal assembly of the support installation mechanism and the flow monitoring mechanism. During normal support operation, support is carried out through the support base 2. The installation angles of the two support pedestals 21 can be adjusted according to the installation scenario. The portable handle 26 is convenient for manual holding and installation. The stability of the equipment during placement is improved by the cooperation of the counterweight block 24 and the reinforcing side plate 27;

[0044] Sealing connection mechanism, the sealing connection mechanism is arranged on both sides of the flow monitoring mechanism and is symmetrically distributed; the sealing connection mechanism includes a sealing connection disc 3 and a first sealing sleeve 31. Sealing connection discs 3 are installed on both sides of the flow monitoring mechanism. First sealing sleeves 31 are installed on one side of the two sealing connection discs 3. First gaskets 32 extending to the outside are installed inside the two first sealing sleeves 31. Second sealing sleeves 34 are installed on the other side of the two sealing connection discs 3. Second gaskets 35 extending to the outside are installed inside the two second sealing sleeves 34. Shock-absorbing springs 36 extending to the inside of the first sealing sleeve 31 and the second sealing sleeve 34 are installed inside the two sealing connection discs 3. Installation holes 33 symmetrically distributed are opened on both sides of the two first sealing sleeves 31. During installation, the sealing connection mechanism is installed in the order of the first gasket 32, the first sealing sleeve 31, the shock-absorbing spring 36, the sealing connection disc 3, the second sealing sleeve 34, and the second gasket 35. The sealing effect during actual use is improved through the above combination, reducing the potential safety hazard problems caused by leakage;

[0045] Pipeline limiting mechanism, the pipeline limiting mechanism is arranged 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. Pipeline limiting frames 4 are arranged on the sides of the two first sealing sleeves 31 away from the sealing connection disc 3. Positioning screws 43 are rotatably connected inside the two pipeline limiting frames 4. Positioning blocks 42 are arranged at the bottom ends of the two positioning screws 43. Rotating caps 44 are installed at the top ends of the two positioning screws 43, and the top ends of the two positioning screws 43 penetrate through the pipeline limiting frames 4. Symmetrically distributed lever rods 45 are fixedly connected to the outer sides of the two rotating caps 44. Limiting inner plates 46 are fixedly connected to both sides of the positioning blocks 42 inside the two pipeline limiting frames 4. 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, the first sealing sleeve 31, the sealing connection disc 3, the second sealing sleeve 34, and the sealing flange disc 6 in sequence until it enters the flow monitoring seat 1. At this time, by manually rotating the lever rod 45, the rotating cap 44 is driven to rotate, the positioning screw 43 is driven to rotate, and the positioning block 42 at the bottom gradually exerts force on the external pipeline, achieving a limiting effect. At the same time, it meets the installation and use of pipelines with different shapes and specifications, improving the overall flexibility of use. Installation side plates 47 are installed on both sides of the two pipeline limiting frames 4. First positioning bolts 48 extending into the pipeline limiting frame 4 are threadedly connected to the outer sides of the four installation side plates 47. Second positioning bolts 49 extending into the first washer 32 are threadedly connected to the outer sides of the four installation side plates 47. The second positioning bolts 49 are all located on one side of the first positioning bolts 48 and are fixedly connected to the first sealing sleeve 31 through the installation holes 33 on the outer side of the first washer 32, realizing the reinforcement connection between the sealing connection mechanism and the pipeline limiting mechanism and facilitating the quick disassembly and assembly during the overall use.

[0046] Please refer to Figures 1 - 4 、 Figure 9 As shown in, sealing flange discs 6 are installed between the flow monitoring mechanism and the sealing connection mechanism. Adsorption pads 62 are installed on the sides of the two sealing flange discs 6 away from each other. Installation grooves 61 that are equidistantly distributed and circularly distributed are opened inside the two sealing flange discs 6.

[0047] In the present invention, by using multiple installation grooves 61 in cooperation with installation bolts, it is convenient to reinforce and install the multiple sealing flange discs 6. By installing adsorption pads 62 on the outer sides of the sealing flange discs 6, the connection sealing effect is improved when cooperating with the installation of other equipment and pipelines.

[0048] Please refer to Figures 1 - 4 、 Figure 10, an internal channel 7 is provided inside the flow monitoring base 1. Two first ultrasonic sensors 71 and a third ultrasonic sensor 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 sensors 71 and the third ultrasonic sensor 73 on the same side. A first sound channel 74 and a second sound channel 75 are provided between the two first ultrasonic sensors 71. The first sound channel 74 and the second sound channel 75 are distributed in an S shape. A third sound channel 76 and a fourth sound channel 77 are provided between the two second ultrasonic sensors 72. The third sound channel 76 and the fourth sound channel 77 are distributed in an S shape. A fifth sound channel 78 and a sixth sound channel 79 are provided between the two third ultrasonic sensors 73. The fifth sound channel 78 and the sixth sound channel 79 are distributed in an S shape. A noise reduction inner pad 5 is installed on the inner wall of the flow monitoring base 1. Through the cooperation of the first sound channel 74, the second sound channel 75, the third sound channel 76, the fourth sound channel 77, the fifth sound channel 78 and the sixth sound channel 79.

[0049] By adopting an ultrasonic flowmeter with a multiplexed multi-channel design, it has high anti-noise performance, can detect eddy currents and asymmetric flows, eliminate the uncertain inherent delays of multiple sensors and processing circuits, and has characteristics such as accurate measurement. At the same time, the multiplexed sound channels can be used as redundant backups. Even if individual sensors are damaged, the gas ultrasonic flowmeter can still work normally, greatly improving the reliability of detection.

[0050] Please refer to Figures 1 - 10 , a wireless signal transceiver 16 is fixedly connected to the top of the flow monitoring base 1 and on the side of the top mounting plate 11 away from the flashing light 15. A main control board is fixedly connected inside the wireless signal transceiver 16. A control chip is fixedly connected to the outside of the main control board. The control knob 14, the flashing light 15, the wireless signal transceiver 16, the display panel 17, the data display screen 18, the first ultrasonic sensor 71, the second ultrasonic sensor 72 and the 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, the flashing light 15, the wireless signal transceiver 16, the display panel 17, the data display screen 18, the first ultrasonic sensor 71, the second ultrasonic sensor 72 and the third ultrasonic sensor 73, realizing the normal management of the device. The first ultrasonic sensor 71, the second ultrasonic sensor 72 and the third ultrasonic sensor 73 measure the 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] Embodiment 2

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

[0054] The master control unit is used to overall control the flow monitoring unit, the data display unit, and the field warning unit, and monitor the operating status of each unit;

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

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

[0057] The field warning unit is used to achieve the effect of different levels of warning by the continuous flashing mode and the intermittent flashing mode of the flashing lamp 15.

[0058] Working principle:

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

[0060] The damping turntable 19 cooperates to rotate the entire protective cover 12 in all directions. The damping value is selected to be a large value, that is, only when manual or significant force acts on the damping turntable 19 will the protective cover 12 be driven to rotate, avoiding equipment deviation. Manual control is carried out through two control knobs 14, which is convenient for the staff to operate and use. The flow monitoring seat 1 and the counterweight 24 are installed through the cooperation of the installation plug rod 25 to realize the normal assembly of the support installation mechanism and the flow monitoring mechanism;

[0061] During normal support operation, support is provided by the support base 2. The two support foot seats 21 can adjust the installation angle according to the installation scenario, and the portable handle 26 is convenient for manual holding and installation. The stability of the equipment during placement is improved through the cooperation of the counterweight 24 and the reinforcement side plate 27;

[0062] The control chip is used to regulate the operation of the control knob 14, the flashing light 15, the wireless signal transceiver 16, the display panel 17, the data display screen 18, the first ultrasonic sensor 71, the second ultrasonic sensor 72, and the third ultrasonic sensor 73, realizing the normal management of the device. The first ultrasonic sensor 71, the second ultrasonic sensor 72, and the 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, generating corresponding control signals according to the preset control algorithm;

[0063] During installation, the sealing connection mechanism is installed in the order of the first washer 32, the first sealing sleeve 31, the shock-absorbing spring 36, the sealing connection disk 3, the second sealing sleeve 34, and the second washer 35. Through the above combination, the sealing effect during actual use is improved, and the potential safety hazard problems caused by leakage are reduced;

[0064] When connecting an external pipeline, the external pipeline passes through the inside of the sound-absorbing inner pad 41 in sequence, the first sealing sleeve 31, the sealing connection disk 3, the second sealing sleeve 34, and the sealing flange 6 until it enters the flow monitoring seat 1. At this time, by manually rotating the lever 45, the rotating cap 44 is driven to rotate, driving the positioning screw 43 to rotate, and driving the positioning block 42 at the bottom to gradually apply force to the external pipeline, achieving a limiting effect. At the same time, it meets the installation and use of pipelines with different shapes and specifications, improving the overall flexibility of use;

[0065] Installation side plates 47 are installed on both sides of the two pipeline limit frames 4. On the outer sides of the four installation side plates 47, first positioning bolts 48 extending into the pipeline limit frame 4 are threadedly connected. On the outer sides of the four installation side plates 47, second positioning bolts 49 extending into the first washer 32 are threadedly connected. The second positioning bolts 49 are all located on one side of the first positioning bolts 48 and are fixedly connected to the first sealing sleeve 31 through the installation holes 33 on the outer side of the first washer 32. At the same time, the reinforcement connection of the sealing connection mechanism and the pipeline limit mechanism is realized, facilitating the quick disassembly and assembly during overall use;

[0066] Through the cooperation of multiple installation slots 61 and installation bolts, it is convenient to reinforce and install multiple sealing flanges 6. By installing an adsorption pad 62 on the outer side of the sealing flange 6, the connection sealing effect is improved when cooperating with the installation of other equipment and pipelines. By adopting an ultrasonic flowmeter with a multiplexed multi-channel design, it has high anti-noise performance, can detect eddy currents and asymmetric flows, eliminate the uncertain inherent delays of multiple sensors and processing circuits, and has the characteristics of accurate measurement. At the same time, the multiplexed channels can be used as redundant backups. Even if individual sensors are damaged, the gas ultrasonic flowmeter can still work normally, greatly improving the reliability of detection.

[0067] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention 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: The support and installation mechanism is arranged at the bottom of the flow monitoring mechanism; The sealing connection mechanism is arranged on both sides of the flow monitoring mechanism and is symmetrically distributed; The pipeline limiting mechanism is arranged on a side of the two sealing connection mechanisms away from the flow monitoring mechanism.

2. The gas ultrasonic flow meter according to claim 1, characterized in that: The flow monitoring mechanism comprises a flow monitoring seat (1) and a top mounting plate (11); the top of the flow monitoring seat (1) is fixedly connected to 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 outer side of the protective cover (12); a data display screen (18) is fixedly connected to the outer side of the display panel (17); a flashing light (15) is fixedly connected to the top of the flow monitoring seat (1) and located on 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); and control knobs (14) are installed on both sides of the protective cover (12).

3. The gas ultrasonic flow meter according to claim 2, characterized in that: The support and installation mechanism comprises a counterweight (24) and a support foot (21); the bottom of the flow monitoring seat (1) is installed with a counterweight (24); the bottom of the counterweight (24) is fixedly connected to a limiting sleeve (29); a load-bearing rod (22) is installed inside the limiting sleeve (29); both sides of the load-bearing rod (22) are covered with protective sleeves (23); the outer sides of the two protective sleeves (23) are fixedly connected with portable handles (26); the bottom of the limiting sleeve (29) is fixedly connected to the support base (2); the bottom of the load-bearing rod (22) and both sides of the support base (2) are rotatably connected with the support foot (21); the outer side of the portable handle (26) is covered with a fixed block (28); the bottom of the fixed block (28) is fixedly connected with a reinforcing side plate (27); the top of the counterweight (24) is rotatably connected with a mounting plug rod (25) extending to the bottom of the flow monitoring seat (1).

4. The gas ultrasonic flow meter according to claim 3, characterized in that: The sealing connection mechanism comprises a sealing connection disk (3) and a first sealing sleeve (31); the sealing connection disks (3) are installed on both sides of the flow monitoring mechanism; the first sealing sleeves (31) are installed on one side of the two sealing connection disks (3); the first gaskets (32) extending to the outside are installed inside the two first sealing sleeves (31); the second sealing sleeves (34) are installed on the other side of the two sealing connection disks (3); the second gaskets (35) extending to the outside are installed inside the two second sealing sleeves (34); the shock absorbing springs (36) extending to the inside of the first sealing sleeves (31) and the second sealing sleeves (34) are installed inside the two sealing connection disks (3); and symmetrically distributed mounting holes (33) are opened on both sides of the two first sealing sleeves (31).

5. The gas ultrasonic flow meter according to claim 4, characterized in that: The pipeline limiting mechanism comprises a pipeline limiting frame (4) and a sound-absorbing inner pad (41). The two first sealing sleeves (31) are each provided with a pipeline limiting frame (4) on one side away from the sealing connection plate (3). The interior of the two pipeline limiting frames (4) is rotatably connected with a positioning screw (43). The bottom ends of the two positioning screws (43) are each provided with a positioning block (42). The top ends of the two positioning screws (43) are each provided with a rotating cap (44). The top ends of the two positioning screws (43) penetrate the pipeline limiting frame (4). The outer sides of the two rotating caps (44) are fixedly connected with symmetrically distributed shifting rods (45). The interior of the two pipeline limiting frames (4) and on both sides of the positioning block (42) are fixedly connected with limiting inner plates (46). The inner walls of the pipeline limiting frames (4) are provided with sound-absorbing inner pads (41).

6. The gas ultrasonic flow meter according to claim 4, 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) away from each other, and the inside of the two sealing flanges (6) is provided with installation grooves (61) which are equidistantly distributed and in a circular shape.

7. The gas ultrasonic flow meter according to claim 2, characterized in that: An internal channel (7) is provided inside the flow monitoring seat (1), and two first ultrasonic sensors (71) and a third ultrasonic sensor (73) extending into the flow monitoring seat (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 sound channel (74) and a second sound channel (75) are provided between the two first ultrasonic sensors (71); a third sound channel (76) and a fourth sound channel (77) are provided between the two second ultrasonic sensors (72); a fifth sound channel (78) and a sixth sound channel (79) are provided between the two third ultrasonic sensors (73); and a noise reduction inner pad (5) is installed on the inner wall of the flow monitoring seat (1).

8. The gas ultrasonic flow meter according to claim 5, characterized in that: Both sides of the two pipe limit frames (4) are installed with mounting side plates (47), the outer sides of the four mounting side plates (47) are threadedly connected with first positioning bolts (48) extending into the interior of the pipe limit frames (4), and the outer sides of the four mounting side plates (47) are threadedly connected with second positioning bolts (49) extending into the interior of the first gasket (32).

9. The gas ultrasonic flow meter according to claim 7, characterized in that: A wireless signal transceiver (16) is fixedly connected to the top of the flow monitoring seat (1) and located on a side of the top mounting plate (11) away from the flashing light (15); a main control board is fixedly connected to the inside of the wireless signal transceiver (16); a control chip is fixedly connected to the outside of the main control board; and the control knob (14), the flashing light (15), the wireless signal transceiver (16), the display panel (17), the data display screen (18), the first ultrasonic sensor (71), the second ultrasonic sensor (72) and the third ultrasonic sensor (73) are all electrically connected to the control chip.

10. The gas ultrasonic flow meter according to claim 9, characterized in that: It also includes the control mechanism, which is arranged outside and controlled by a control chip. The control mechanism includes a general control unit, a flow monitoring unit, a data display unit and an on-site early warning unit. The general control unit, the flow monitoring unit, the data display unit and the on-site early warning unit are all communicatively connected to the control chip.

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