Novel precise flange type gas mass flow meter

Abstract

The utility model provides a novel precise flange type gas mass flow meter, which relates to the technical field of gas flow metering, and comprises a connecting pipe, the surface of the connecting pipe is fixedly connected with a base, the surface of the base is fixedly connected with a meter cover, the surface of the meter cover is fixedly connected with a supporting column, and the arc surface of the supporting column is sleeved with a panel bottom shell. A connector A and a connector B are fixedly connected to the surface of the panel bottom shell, a flange A and a flange B are fixedly connected to the end of the connecting pipe, a pressure sensor and a flow sensor are installed in a cavity of the base and welded and fixed to the surface of a mounting plate, and the mounting plate is fixedly connected with the base. A detection air inlet hole and a detection air outlet hole are formed in the inner wall of the connecting pipe. The gas flow meter solves the problems that an existing gas flow meter needs temperature and pressure compensation, measurement errors are large, data are unstable, the measuring range is small, measurement is single and limited, and measurement result data are inaccurate.

Description

Technical Field

[0001] This utility model relates to the field of gas flow measurement technology, specifically to a novel precision flange-type gas mass flow meter. Background Technology

[0002] Gas flow meters are instruments used to measure the flow rate of gas. They are widely used in industries, laboratories, and homes. Gas flow meters can monitor gas flow in real time, which helps to detect potential safety hazards such as pipeline leaks in a timely manner, ensuring the safety of the production environment and personnel. In the oil and gas industry, monitoring gas flow is very important, as it can detect abnormalities in a timely manner.

[0003] Gas supply in factory pipelines or in residential natural gas supply requires gas monitoring and metering for management. However, existing gas flow meters require temperature and pressure compensation, have large measurement errors, unstable data, small range, and limited measurement capabilities, which can lead to inaccurate measurement results. Utility Model Content

[0004] This invention provides a novel precision flange-type gas mass flow meter that solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] This utility model provides a novel precision flange-type gas mass flow meter, comprising: a connecting pipe, a base fixedly connected to the surface of the connecting pipe, a cover fixedly connected to the surface of the base, a support column fixedly connected to the surface of the cover, a panel bottom shell fitted onto the arc surface of the support column, connectors A and B fixedly connected to the surface of the panel bottom shell, flanges A and B fixedly connected to the ends of the connecting pipe, a pressure sensor and a flow sensor installed inside the cavity of the base, the pressure sensor and flow sensor being welded and fixed to the surface of a mounting plate, the mounting plate being fixedly connected to the base, a detection inlet hole and a detection outlet hole formed on the inner wall of the connecting pipe, a flow guide ring fixedly connected to the inner wall of the connecting pipe, and a plurality of flow guide holes formed on the inner wall of the flow guide ring.

[0007] The above technical solutions enable low pressure loss, wide range, high accuracy, and high reliability during the measurement process, thereby solving the inconvenience caused to users by large data errors.

[0008] Furthermore, the inner wall of the connecting pipe is provided with a pipe inlet and a pipe outlet. The pipe inlet is connected to the detection inlet, and the pipe outlet is connected to the detection exhaust outlet.

[0009] The above technical solution connects multiple pores, allowing gas to flow out smoothly after detection, minimizing leakage and loss.

[0010] Furthermore, a display panel is fixedly connected to the surface of the bottom shell of the panel, a display interface is fixedly connected to the inner wall of the display panel, and the display screen on the surface of the display interface is made of explosion-proof glass.

[0011] With the above technical solution, after the gas flows through the connecting pipe, the pressure sensor and flow sensor will transmit the data to the display panel, making it convenient for staff to observe changes in flow and pressure.

[0012] Furthermore, the inner wall of the support column is threaded with a copper nut, and a protective tube is fixedly connected to the surface of the copper nut, and the protective tube is connected to the copper nut.

[0013] The above technical solution provides better protection for the connection lines between the flow sensor and pressure sensor and the display panel.

[0014] Furthermore, the inner wall of the mounting plate is threaded with six screws A, which are threaded to the base; the inner wall of the panel bottom shell is threaded with two screws B, which abut against the surface of the support column; the inner wall of the panel bottom shell is threaded with eight screws C, which are threaded to the display panel; and the inner wall of the cover is threaded with six screws D, which are threaded to the base.

[0015] By using the above technical solution to fix the connecting parts with multiple screws, the structure of the metering device becomes more stable and easier to disassemble.

[0016] Furthermore, a PTFE sealing gasket is fixedly connected to the surface of the watch cover, and the PTFE sealing gasket is located between the watch cover and the base. A sealing ring A is fixedly connected to the surface of the support column, and the sealing ring A is located between the support column and the bottom shell of the panel. A sealing ring B is fixedly connected to the inner wall of the base, and the sealing ring B is located between the base and the mounting plate. A sealing ring C is fixedly connected to the surface of the copper nut, and the sealing ring C is located between the copper nut and the support column.

[0017] By placing sealing rings at various points of connection through the above technical solution, the sealing rings will deform under pressure when fixed with screws, thus improving the airtightness of the metering equipment.

[0018] The above-described solution of this utility model has at least the following beneficial effects:

[0019] 1. This utility model, by setting up a connecting pipe, panel bottom shell, support column, flow sensor and pressure sensor, enables low pressure loss, wide range ratio, high accuracy and high reliability during the metering process, thereby solving the problem of inconvenience caused to users by large data errors. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a utility model Figure 1 A schematic diagram of the anatomical structure;

[0022] Figure 3 This is a disassembly diagram of the cover of this utility model;

[0023] Figure 4 This is a schematic diagram of the disassembled structure of the bottom shell of the panel of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Connecting pipe; 2. Flange A; 3. Support column; 4. Flange B; 5. Screw A; 6. Flow guide hole; 7. Flow guide ring; 8. Detection air inlet; 9. Detection air outlet; 10. PTFE gasket; 11. Pipe air inlet; 12. Pipe air outlet; 13. Flow sensor; 14. Pressure sensor; 15. Screw B; 16. Sealing ring A; 17. Connector A; 18. Cover; 19. Sealing ring B; 20. Copper nut; 21. Display panel; 22. Display interface; 23. Cable protector; 24. Sealing ring C; 25. Connector B; 26. Screw C; 27. Panel bottom shell; 28. Screw D; 29. ​​Base. Detailed Implementation

[0026] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0027] like Figures 1 to 4 As shown, an embodiment of this utility model provides a novel precision flange-type gas mass flow meter, including: a connecting pipe 1.

[0028] like Figures 1 to 4As shown, a connecting pipe 1 is connected to a base 29, which is fixedly connected to the surface of the connecting pipe 1. A cover 18 is fixedly connected to the surface of the base 29, and a support column 3 is fixedly connected to the surface of the cover 18. A panel bottom shell 27 is fitted onto the arc surface of the support column 3. A connector A17 and a connector B25 are fixedly connected to the surface of the panel bottom shell 27. A flange A2 and a flange B4 are fixedly connected to the end of the connecting pipe 1. A pressure sensor 14 and a flow sensor 13 are installed inside the cavity of the base 29 and are welded and fixed to the surface of the mounting plate. The mounting plate is fixedly connected to the base 29. A detection air inlet 8 and a detection air outlet 9 are opened on the inner wall of the connecting pipe 1. A flow guide ring 7 is fixedly connected to the inner wall of the connecting pipe 1. Several flow guide holes 6 are opened on the inner wall of the flow guide ring 7. After connecting the two ends of the flow meter to the air pipe, the flow meter is connected to the air supply through connector A17. An external power supply is used. When communication is required, an R485 communication cable can be connected via connector B25. At this time, the flow meter works normally. Gas enters the flange B4 of the precision flange-type gas mass flow meter through the gas pipe, and then enters the pipeline inlet 11 through flange B4. At the same time, it passes through the guide hole 6 on the guide ring 7 and the detection inlet 8. The gas in the guide hole 6 directly enters the outlet, while the gas passing through the detection inlet 8 comes into contact with the pressure sensor 14 and the flow sensor 13. The data measured by the pressure sensor 14 and the flow sensor 13 are transmitted to the display panel 21 through the wire. Then, the gas passing through the detection inlet 8 and the gas from the pressure sensor 14 and the flow sensor 13 are discharged through the detection exhaust hole 9 and enter the pipeline outlet 12, and are discharged from the gas pipe at flange A2. This results in low pressure loss, wide range ratio, high accuracy, and high reliability during the measurement process, thereby solving the problem of inconvenience caused to users by large data errors.

[0029] The inner wall of the connecting pipe 1 is provided with a pipe inlet 11 and a pipe outlet 12. The pipe inlet 11 is connected to the detection inlet 8, and the pipe outlet 12 is connected to the detection exhaust 9. The connection between the multiple outlets allows the gas to flow out smoothly after detection, and it is not easy to leak or lose gas. The surface of the panel bottom shell 27 is fixedly connected to the display panel 21, and the inner wall of the display panel 21 is fixedly connected to the display interface 22. After the gas flows through the connecting pipe 1, the pressure sensor 14 and the flow sensor 13 will transmit the data to the display panel 21, so that the staff can observe the changes in flow and pressure. The inner wall of the support column 3 is threaded with a copper nut 20, and the surface of the copper nut 20 is fixedly connected with a protective tube 23, and the protective tube 23 is connected to the copper nut 20, so as to better protect the connection line between the flow sensor 13 and the pressure sensor 14 and the display panel 21.

[0030] The mounting plate has six screws A5 threadedly connected to its inner wall, which are threaded to the base 29. The panel bottom shell 27 has two screws B15 threadedly connected to its inner wall, which abut against the surface of the support column 3. The panel bottom shell 27 also has eight screws C26 threadedly connected to its inner wall, which are threaded to the display panel 21. The cover 18 has six screws D28 threadedly connected to its inner wall, which are threaded to the base 29. Using multiple screws to fix the connectors makes the metering device more stable and easier to disassemble. A PTFE gasket 10 is fixedly connected to the surface of the cover 18, located between the cover 18 and the base 29. A sealing ring A16 is fixedly connected to the surface of the support column 3, located between the support column 3 and the panel bottom shell 27. A sealing ring B19 is fixedly connected to the inner wall of the base 29. 19 is located between the base 29 and the mounting plate. A sealing ring C24 is fixedly connected to the surface of the copper nut 20, and the sealing ring C24 is located between the copper nut 20 and the support column 3. The sealing ring is placed at various positions at the connection so that when the screw is used for fixing, the sealing ring will be deformed by compression, which makes the airtightness of the metering equipment better.

[0031] In this embodiment of the utility model, after connecting the two ends of the flow meter to the air pipe, the flow meter is connected to a 24V external power supply through connector A17. When communication is required, an R485 communication line can be connected through connector B25. At this time, the flow meter is working normally. The gas enters the flange B4 of the precision flange gas mass flow meter through the air pipe, enters the pipeline inlet 11 through flange B4, and then passes through the guide hole 6 and the detection inlet 8 on the guide ring 7. The gas in the guide hole 6 directly enters the outlet, while the gas passing through the detection inlet 8 comes into contact with the pressure sensor 14 and the flow sensor 13. The data measured by the pressure sensor 14 and the flow sensor 13 are transmitted to the display panel 21 through the wire. Then, the gas passing through the detection inlet 8 and the gas from the pressure sensor 14 and the flow sensor 13 are discharged through the detection exhaust hole 9 and enter the pipeline outlet 12 and are discharged from the air pipe at flange A2.

[0032] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A novel precision flange-type gas mass flow meter, characterized in that, include: A connecting pipe (1) is fixedly connected to a base (29), a cover (18) is fixedly connected to the surface of the base (29), a support column (3) is fixedly connected to the surface of the cover (18), a panel bottom shell (27) is fitted on the arc surface of the support column (3), a connector A (17) and a connector B (25) are fixedly connected to the surface of the panel bottom shell (27), a flange A (2) and a flange B (4) are fixedly connected to the end of the connecting pipe (1), a pressure sensor (14) and a flow sensor (13) are installed in the cavity of the base (29), and the pressure sensor (14) and the flow sensor (13) are welded and fixed to the surface of the mounting plate, the mounting plate is fixedly connected to the base (29), a detection air inlet (8) and a detection exhaust hole (9) are opened on the inner wall of the connecting pipe (1), a flow guide ring (7) is fixedly connected to the inner wall of the connecting pipe (1), and a plurality of flow guide holes (6) are opened on the inner wall of the flow guide ring (7).

2. The novel precision flange-type gas mass flow meter according to claim 1, characterized in that, The inner wall of the connecting pipe (1) is provided with a pipe air inlet (11) and a pipe air outlet (12). The pipe air inlet (11) is connected to the detection air inlet (8), and the pipe air outlet (12) is connected to the detection exhaust port (9).

3. The novel precision flange-type gas mass flow meter according to claim 1, characterized in that, The display panel (21) is fixedly connected to the surface of the panel bottom shell (27), and the display interface (22) is fixedly connected to the inner wall of the display panel (21), and the display screen on the surface of the display interface (22) is explosion-proof glass.

4. A novel precision flange-type gas mass flow meter according to claim 1, characterized in that, The inner wall of the support column (3) is threaded with a copper nut (20), and a protective tube (23) is fixedly connected to the surface of the copper nut (20), and the protective tube (23) and the copper nut (20) are connected in communication.

5. A novel precision flange-type gas mass flow meter according to claim 4, characterized in that, The inner wall of the mounting plate is threaded with six screws A (5), which are threaded to the base (29). The inner wall of the panel bottom shell (27) is threaded with two screws B (15), which abut against the surface of the support column (3). The inner wall of the panel bottom shell (27) is threaded with eight screws C (26), which are threaded to the display panel (21). The inner wall of the cover (18) is threaded with six screws D (28), which are threaded to the base (29).

6. A novel precision flange-type gas mass flow meter according to claim 4, characterized in that, The surface of the cover (18) is fixedly connected with a PTFE gasket (10), and the PTFE gasket (10) is located between the cover (18) and the base (29). The surface of the support column (3) is fixedly connected with a sealing ring A (16), and the sealing ring A (16) is located between the support column (3) and the panel bottom shell (27). The inner wall of the base (29) is fixedly connected with a sealing ring B (19), and the sealing ring B (19) is located between the base (29) and the mounting plate. The surface of the copper nut (20) is fixedly connected with a sealing ring C (24), and the sealing ring C (24) is located between the copper nut (20) and the support column (3).

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