High-precision digital technology Internet of Things ultrasonic gas meter

Abstract

The invention relates to the technical field of gas meters, and discloses a high-precision digital technology internet of things ultrasonic gas meter which comprises a shell, a gas inlet pipe and an exhaust pipe are arranged on the upper portion of the shell, a connecting block is arranged between the gas inlet pipe and the exhaust pipe, and a first gas channel and a second gas channel are formed in the connecting block. The diameter of the side, away from the first air channel, of the second air channel is larger than that of the side, close to the first air channel, of the second air channel, a second connecting column and a first connecting column are arranged on the outer wall of the connecting block, an ultrasonic transmitter is arranged at the end of the second connecting column, and an ultrasonic receiver is arranged at the end of the first connecting column. And a first ultrasonic detection channel is formed in the middle of the second connecting column. According to the ultrasonic gas meter, entering gas is collected, arranged and evenly distributed through the second gas channel, and therefore the problem that due to the fact that most of flow channels in an existing ultrasonic gas meter are straight-through, gas is prone to being unevenly distributed in the flow channels, and errors are generated in ultrasonic detection is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas meters, in particular to a high-precision digital technology Internet of Things ultrasonic gas meter. Background Art

[0002] A gas meter is a device used to measure the amount of gas used. From the working principle point of view, the common diaphragm gas meter mainly drives the internal film movement when the gas enters and exits. The reciprocating motion of the film drives the mechanical transmission device, thereby converting the gas flow into a rotational motion that can be recognized by the counting device, so as to accurately measure the gas consumption. It is like a precise little housekeeper, recording the consumption of gas at every moment. From the appearance, the gas meter is generally a square box with a moderate size. It is usually installed in a position that is easier to operate and read, such as on the wall of the kitchen. There is a clear reading window on its surface, which is convenient for users to check the gas usage, and the numbers are intuitive and clear. In terms of function, the gas meter provides a basis for gas companies to charge, ensuring that users pay according to the actual usage and ensuring the fairness of the charges. At the same time, the accuracy of the gas meter is also very important, and it needs to be inspected and maintained regularly to ensure that it can work stably and accurately, and provide reliable metering services for users and gas supply companies.

[0003] The flow channels in existing ultrasonic gas meters are mostly straight, but since the fuel gas is a gas, it is easy to be unevenly distributed in the flow channel. At the same time, it is easily disturbed by the flow field, which affects the ultrasonic propagation path and speed, thereby causing errors in ultrasonic detection. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a high-precision digital technology Internet of Things ultrasonic gas meter, which solves the problem that the flow channels in the existing ultrasonic gas meters are mostly straight, but because the fuel gas is a gas, it is easy to be unevenly distributed in the flow channel, and it is easy to be disturbed by the flow field, which affects the ultrasonic propagation path and speed, thereby causing errors in ultrasonic detection.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-precision digital technology Internet of Things ultrasonic gas meter, comprising a shell, an air inlet pipe and an exhaust pipe are arranged on the upper part of the shell, a connecting block is arranged between the air inlet pipe and the exhaust pipe, a first air duct and a second air duct are opened inside the connecting block, the diameter of the side of the second air duct away from the first air duct is larger than the side close to the first air duct, a second connecting column and a first connecting column are arranged on the outer wall of the connecting block, an ultrasonic transmitter is arranged at the end of the second connecting column, an ultrasonic receiver is arranged at the end of the first connecting column, a first ultrasonic detection channel is opened in the middle of the second connecting column, a second ultrasonic detection channel is opened in the middle of the first connecting column, the first ultrasonic detection channel and the second ultrasonic detection channel are both connected with the first air duct, the side of the first air duct away from the second air duct is connected with the exhaust pipe, and the end of the second air duct away from the first air duct is connected with the air inlet pipe, and a power switch device is arranged inside the connecting block.

[0006] Preferably, the power switch device includes a guide plate, both sides of the guide plate are fixedly connected to one end of a first rotating shaft, the other end of the first rotating shaft is fixedly connected to one side of a rotating block, the rotating block is rotatably connected to the inside of the connecting block, the end of the rotating block on the right side of the guide plate away from the first rotating shaft is fixedly connected to one end of a second rotating shaft, the outer wall of the second rotating shaft is fixedly connected with a first conductive sheet, power cords are arranged on the front and rear sides of the second rotating shaft, and a second conductive sheet is arranged at a position of the power cord close to the first conductive sheet.

[0007] Preferably, a guide groove is provided on the outer wall of the guide plate.

[0008] Preferably, a counterweight block is provided at a lower position inside the guide plate.

[0009] Preferably, a temperature sensor is provided in the middle of the guide plate, and a heating wire is provided in the connection block near the first air duct and the second air duct.

[0010] Preferably, a display screen is provided on the outer wall of the shell, electronic valves are provided inside the air inlet pipe and the exhaust pipe, and a signal receiving module, a calculation module, a feedback module, a signal output module and a communication module are provided inside the shell. The signal receiving module is used to receive signals from an ultrasonic receiver and transmit them to the calculation module for processing. The calculation module calculates the received signal according to the ultrasonic time difference method to obtain the flow rate and flow velocity information of the gas, and transmits the information to the feedback module. The feedback module feeds the information back to the controller, and the electronic valve state is controlled by the controller. The signal output module is used to output gas parameter information and control the working state of the electronic valve according to the instructions of the controller. The communication module transmits the collected data to the management platform of the gas company through the wireless network, and can also receive instructions and configuration information from the platform.

[0011] Preferably, a battery compartment is provided at the bottom of the shell, a protective cover is provided outside the battery compartment, the protective cover is rotatably connected to the shell by a hinge, a hand latch groove is provided at the bottom of the protective cover, and a magnet is provided at the intersection of the outer wall of one side of the shell close to the hand latch groove and the outer wall of the shell.

[0012] Preferably, a fixing plate is provided on the outer wall of the shell, and a mounting hole is opened in the middle of the fixing plate.

[0013] Working principle: The gas is transported into the second air duct through the air inlet pipe, and then the gas is rectified due to the trumpet shape of the second air duct. Then the gas drives the guide plate to rotate, and then the rotating block drives the second rotating shaft to rotate, so that the first conductive sheet rotates, and then the second conductive sheets in the middle of the power cord are connected to each other, so as to start the ultrasonic transmitter and the ultrasonic receiver to start working. The ultrasonic transmitter emits an ultrasonic wave, and the ultrasonic wave reaches the inside of the first air duct through the first ultrasonic detection channel, and then is reflected into the inside of the second ultrasonic detection channel through the side wall of the first air duct, and then is received by the ultrasonic receiver, and the ultrasonic information is transmitted to the calculation module through the signal receiving module, and the gas usage information is formed after calculation by the calculation module, and then the usage information is transmitted to the feedback module, the signal output module and the communication module, and the gas usage information is sent to the user and the gas company through the communication module, and the gas usage information is output to the display screen through the signal output module.

[0014] The present invention provides a high-precision digital technology Internet of Things ultrasonic gas meter. It has the following beneficial effects: 1. In the present invention, the incoming gas is collected and arranged through the second gas passage, evenly distributed, and then evenly discharged through the first gas passage, so that the ultrasonic wave emitted by the ultrasonic transmitter is reflected more accurately after passing through the first gas passage to avoid disturbance, thereby improving the existing ultrasonic gas meter. The flow passages in the gas passages are mostly straight, but since the gas is a gas, it is easy to be unevenly distributed in the flow passage, and it is easy to be disturbed by the flow field, so that the ultrasonic wave propagation path and speed will be affected, thereby causing errors in ultrasonic detection.

[0015] 2. In the present invention, the guide plate is driven to rotate by gas, so that the guide plate can be changed from a vertical state to a horizontal state, thereby driving the first conductive sheet to rotate, thereby connecting the second conductive sheet, so that the ultrasonic transmitter and the ultrasonic receiver start to work. When there is no gas, the guide plate will be changed to a vertical state due to the counterweight block arranged at the lower position inside the guide plate, thereby disconnecting the power line, thereby avoiding excessive discharge of the battery and protecting the battery.

[0016] 3. In the present invention, the temperature of the flowing gas can be monitored in real time by a temperature sensor arranged in the middle of the guide plate. When the temperature is lower than -10°C, the heating wire is started to heat the gas, thereby changing the density of the gas, thereby making the density of the gas the same during winter and summer measurement, thereby making the measurement more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the rear three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the connection block of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the connection block of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the guide plate of the present invention when it is vertical; Figure 6 It is a schematic diagram of the three-dimensional structure when the guide plate of the present invention is horizontal.

[0018] Among them, 1. air intake pipe; 2. exhaust pipe; 3. fixing plate; 4. shell; 5. display screen; 6. protective cover; 7. finger grip groove; 8. battery compartment; 9. magnet; 10. connecting block; 11. first connecting column; 12. ultrasonic transmitter; 13. ultrasonic receiver; 14. power cord; 15. first air duct; 16. first ultrasonic detection channel; 17. second connecting column; 18. guide plate; 19. second air duct; 20. second ultrasonic detection channel; 21. first rotating shaft; 22. rotating block; 23. first conductive sheet; 24. second conductive sheet; 25. second rotating shaft; 26. guide groove. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example: Please refer to the attached Figure 1 -Attached Figure 4 The embodiment of the present invention provides a high-precision digital technology Internet of Things ultrasonic gas meter, including a shell 4, an air intake pipe 1 and an exhaust pipe 2 are arranged on the upper part of the shell 4, a connecting block 10 is arranged between the air intake pipe 1 and the exhaust pipe 2, a first air passage 15 and a second air passage 19 are opened inside the connecting block 10, a side of the second air passage 19 away from the first air passage 15 has a larger diameter than a side close to the first air passage 15, a second connecting column 17 and a first connecting column 11 are arranged on the outer wall of the connecting block 10, and an ultrasonic generator is arranged at the end of the second connecting column 17 An ultrasonic receiver 13 is provided at the end of the first connecting column 11, a first ultrasonic detection channel 16 is opened in the middle of the second connecting column 17, a second ultrasonic detection channel 20 is opened in the middle of the first connecting column 11, the first ultrasonic detection channel 16 and the second ultrasonic detection channel 20 are both connected with the first air channel 15, the side of the first air channel 15 away from the second air channel 19 is connected with the exhaust pipe 2, the end of the second air channel 19 away from the first air channel 15 is connected with the intake pipe 1, and a power switch device is provided inside the connecting block 10.

[0021] Specifically, the shell 4 can be used to install related components and protect internal components. The intake pipe 1 can be used to transport gas to the inside of the gas meter. The exhaust pipe 2 can be used to discharge the gas in the gas meter. The connecting block 10 can connect the intake pipe 1 and the exhaust pipe 2. The second gas passage 19 is trumpet-shaped and can effectively rectify the gas so that the gas is evenly discharged from the first gas passage 15 and then from the exhaust pipe 2. The second connecting column 17 can be used to install the ultrasonic transmitter 12. The first connecting column 11 can be used to install the ultrasonic receiver 13. The ultrasonic transmitter 12 and the ultrasonic receiver 13 are both electrically connected to the controller through wires. The first ultrasonic detection channel 16 can enable the ultrasonic wave emitted by the ultrasonic transmitter 12 to be emitted to the wall of the first gas passage 15, and then reflected to the second ultrasonic detection channel 20, and then received by the ultrasonic receiver 13.

[0022] Please refer to the attached Figure 4 -Attached Figure 6 The power switch device includes a guide plate 18, both sides of the guide plate 18 are fixedly connected to one end of a first rotating shaft 21, the other end of the first rotating shaft 21 is fixedly connected to one side of a rotating block 22, the rotating block 22 is rotatably connected to the inside of the connecting block 10, and the end of the rotating block 22 on the right side of the guide plate 18 away from the first rotating shaft 21 is fixedly connected to one end of a second rotating shaft 25, the outer wall of the second rotating shaft 25 is fixedly connected to a first conductive sheet 23, the front and rear sides of the second rotating shaft 25 are provided with a power cord 14, and the position of the power cord 14 close to the first conductive sheet 23 is provided with a second conductive sheet 24.

[0023] Specifically, the guide plate 18 can block the gas, but since the rotating block 22 is rotatably connected to the inside of the connecting block 10, it will quickly change from a vertical state to a horizontal state, thereby driving the first conductive sheet 23 to rotate, so that the second conductive sheets 24 at both ends of the power cord 14 form a passage using the first conductive sheet 23, and then start the ultrasonic transmitter 12 and the ultrasonic receiver 13 and related components, thereby starting the metering work.

[0024] Please refer to the attached Figure 5 -Attached Figure 6 A guide groove 26 is formed on the outer wall of the guide plate 18 .

[0025] Specifically, the guide groove 26 can play a role in arranging the gas flow, so that the gas flow is more uniform and stable.

[0026] Please refer to the attached Figure 5 -Attached Figure 6 A counterweight is provided at the lower inner portion of the guide plate 18 .

[0027] Specifically, the counterweight block can pull the guide plate 18 downward when there is no gas flow, and the guide plate 18 maintains a vertical state through the effect of ground attraction, so that the first conductive sheet 23 is also in a vertical state, so that the power cord 14 is in an open circuit state, thereby reducing the discharge of the battery, thereby achieving the purpose of saving electricity.

[0028] Please refer to the attached Figure 4 -Attached Figure 6 A temperature sensor is arranged in the middle of the guide plate 18 , and a heating wire is arranged in the connection block 10 near the first air passage 15 and the second air passage 19 .

[0029] Specifically, the temperature of the gas flow can be detected in real time through the temperature sensor, the temperature sensor is electrically connected to the controller through wires, and the heating wire is electrically connected to the controller through wires. When the gas temperature is lower than -10°C, the temperature of the connecting block 10 can be increased by connecting the heating wire to a power source, thereby increasing the temperature of the gas inside the first gas duct 15.

[0030] Please refer to the attached Figure 1 A display screen 5 is provided on the outer wall of the shell 4, and electronic valves are provided inside the air inlet pipe 1 and the exhaust pipe 2. A signal receiving module, a calculation module, a feedback module, a signal output module and a communication module are provided inside the shell 4. The signal receiving module is used to receive the signal from the ultrasonic receiver 13 and transmit it to the calculation module for processing. The calculation module calculates the received signal according to the ultrasonic time difference method to obtain the flow rate and flow velocity information of the gas, and transmits the information to the feedback module. The feedback module feeds back the information to the controller, and the electronic valve state is controlled by the controller. The signal output module is used to output the gas parameter information and control the working state of the electronic valve according to the instructions of the controller. The communication module transmits the collected data to the management platform of the gas company through the wireless network, and can also receive instructions and configuration information from the platform.

[0031] Specifically, the display screen 5 can display the state of the gas meter and the amount of gas used, the electronic valve can control the closing or opening of the intake pipe 1 and the exhaust pipe 2, the signal receiving module, the calculation module, the feedback module, the signal output module and the communication module are all electrically connected to the controller through wires, the signal receiving module can receive the ultrasonic information transmitted by the ultrasonic receiver 13, and provide a basic signal for subsequent data calculation, determination of parameters such as gas flow rate and the normal operation of the gas meter, the calculation module can calculate according to the received ultrasonic signal, using the time difference method and other measurement principles, so as to obtain the key parameters such as the gas flow rate and flow velocity, and the feedback module can receive the ultrasonic information transmitted by the ultrasonic receiver 13, and provide a basic signal for the subsequent data calculation, determination of parameters such as gas flow rate and the normal operation of the gas meter ... The feedback module can pass the gas flow, flow rate and other parameter results obtained by the calculation module to the controller, so that the controller can perform corresponding control and processing based on this information, such as adjusting the motor valve status, recording data, etc. The signal output module can output the measurement data and status information in the gas meter according to the preset requirements, so as to realize the display of gas flow data, the control and drive of components such as motor valves, and data interaction with external systems. The communication module can connect the ultrasonic gas meter to the external network (such as the gas company's management platform) to realize the remote transmission of gas meter data and the reception of platform instructions, thereby achieving the effect of remote monitoring and intelligent management.

[0032] Please refer to the attached Figure 1 A battery compartment 8 is provided at the bottom of the shell 4, and a protective cover 6 is provided outside the battery compartment 8. The protective cover 6 is rotatably connected to the shell 4 through a hinge. A hand buckle groove 7 is provided at the bottom of the protective cover 6. A magnet 9 is provided at the intersection of the outer wall of the shell 4 on one side of the hand buckle groove 7 close to the shell 4 and the outer wall of the shell 4.

[0033] Specifically, the battery can be placed through the battery compartment 8, the protective cover 6 can protect the battery, the thumb slot 7 can be used to activate the protective cover 6 for easy opening, and the magnet 9 can effectively fix the protective cover 6 when it is not needed to be opened to prevent accidental opening.

[0034] Please refer to the attached Figure 1 -Attached Figure 2 A fixing plate 3 is disposed on the outer wall of the shell 4, and a mounting hole is opened in the middle of the fixing plate 3.

[0035] Specifically, a mounting hole is provided in the middle of the fixing plate 3 so that a nail can be inserted, thereby fixing the housing 4 on the wall.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision digital technology Internet of Things ultrasonic gas meter, comprising a housing (4), characterized in that: An air intake pipe (1) and an exhaust pipe (2) are arranged at the upper part of the shell (4); a connecting block (10) is arranged between the air intake pipe (1) and the exhaust pipe (2); a first air passage (15) and a second air passage (19) are provided inside the connecting block (10); a diameter of a side of the second air passage (19) away from the first air passage (15) is larger than a diameter of a side of the second air passage (19) close to the first air passage (15); a second connecting column (17) and a first connecting column (11) are arranged on an outer wall of the connecting block (10); an ultrasonic transmitter (12) is arranged at an end of the second connecting column (17); and a first connecting column (11) is provided at an end of the first connecting column (11). An ultrasonic receiver (13) is provided at the end, a first ultrasonic detection channel (16) is provided at the middle of the second connecting column (17), a second ultrasonic detection channel (20) is provided at the middle of the first connecting column (11), the first ultrasonic detection channel (16) and the second ultrasonic detection channel (20) are both connected to the first air channel (15), a side of the first air channel (15) away from the second air channel (19) is connected to the exhaust pipe (2), an end of the second air channel (19) away from the first air channel (15) is connected to the intake pipe (1), and a power switch device is provided inside the connecting block (10).

2. According to claim 1, a high-precision digital technology Internet of Things ultrasonic gas meter is characterized by: The power switch device comprises a guide plate (18), both sides of the guide plate (18) are fixedly connected to one end of a first rotating shaft (21), the other end of the first rotating shaft (21) is fixedly connected to one side of a rotating block (22), the rotating block (22) is rotatably connected to the inside of the connecting block (10), one end of the rotating block (22) on the right side of the guide plate (18) away from the first rotating shaft (21) is fixedly connected to one end of a second rotating shaft (25), the outer wall of the second rotating shaft (25) is fixedly connected to a first conductive sheet (23), power lines (14) are arranged on both sides of the front and rear of the second rotating shaft (25), and a second conductive sheet (24) is arranged at a position of the power line (14) close to the first conductive sheet (23).

3. A high-precision digital technology Internet of Things ultrasonic gas meter according to claim 2, characterized in that: The outer wall of the guide plate (18) is provided with a guide groove (26).

4. A high-precision digital technology Internet of Things ultrasonic gas meter according to claim 2, characterized in that: A counterweight block is arranged at a lower position inside the guide plate (18).

5. According to claim 2, a high-precision digital technology Internet of Things ultrasonic gas meter is characterized by: A temperature sensor is provided in the middle of the guide plate (18), and a heating wire is provided in the connection block (10) near the first air channel (15) and the second air channel (19).

6. A high-precision digital technology Internet of Things ultrasonic gas meter according to claim 1, characterized in that: The outer wall of the shell (4) is provided with a display screen (5), the air inlet pipe (1) and the exhaust pipe (2) are both provided with electronic valves, and the shell (4) is provided with a signal receiving module, a calculation module, a feedback module, a signal output module and a communication module. The signal receiving module is used to receive a signal from an ultrasonic receiver (13) and transmit the signal to the calculation module for processing. The calculation module calculates the received signal according to the ultrasonic time difference method to obtain the flow rate and flow velocity information of the gas, and transmits the information to the feedback module. The feedback module feeds back the information to the controller, and the controller controls the state of the electronic valve. The signal output module is used to output gas parameter information and control the working state of the electronic valve according to the instructions of the controller. The communication module transmits the collected data to the management platform of the gas company through the wireless network, and can also receive instructions and configuration information from the platform.

7. A high-precision digital technology Internet of Things ultrasonic gas meter according to claim 1, characterized in that: A battery compartment (8) is provided at the bottom of the housing (4), a protective cover (6) is provided outside the battery compartment (8), the protective cover (6) is rotatably connected to the housing (4) via a hinge, a hand grip groove (7) is provided at the bottom of the protective cover (6), and a magnet (9) is provided at a position where an outer wall of a side of the hand grip groove (7) close to the housing (4) intersects with an outer wall of the housing (4).

8. According to claim 1, a high-precision digital technology Internet of Things ultrasonic gas meter is characterized by: The outer wall of the housing (4) is provided with a fixing plate (3), and a mounting hole is provided in the middle of the fixing plate (3).

Images