Novel precise thread type gas mass flow meter

Abstract

The utility model provides a novel precise thread type gas mass flow meter, which relates to the technical field of gas flow metering and comprises a meter seat, a meter head shell is fixedly connected to the surface of the meter seat, an external joint is fixedly connected to the surface of the meter head shell, a thread joint A is fixedly connected to the surface of the meter seat, and the thread joint A is fixedly connected to the surface of the meter seat. A threaded connector B is fixedly connected to the surface of the gauge stand, four mounting fixing holes are formed in the lower surface of the gauge stand, a flow guide hole is formed in the inner wall of the gauge stand, a pressure sensor and a flow sensor are mounted in a cavity of the gauge stand, and the pressure sensor and the flow sensor are welded and fixed to the surface of a mounting plate; the mounting plate is fixedly connected with the gauge stand, and the inner wall of the gauge stand is provided with a detection air inlet hole and a detection exhaust hole. 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 threaded 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. In industrial production, accurate gas flow measurement can help control and optimize the production process, ensuring the stability and efficiency of the production line.

[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 threaded 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 threaded gas mass flow meter, comprising: a base, a meter head housing fixedly connected to the surface of the base, an external connector fixedly connected to the surface of the meter head housing, a threaded connector A fixedly connected to the surface of the base, a threaded connector B fixedly connected to the surface of the base, four mounting holes on the lower surface of the base, a flow guide hole on the inner wall of the base, 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, and a detection inlet hole and a detection outlet hole on the inner wall of the base.

[0007] The above technical solution allows for the direct and accurate measurement of the mass flow rate of flowing gas, as well as real-time monitoring of the current gas pressure. This results in low pressure loss, wide range, high accuracy, and high reliability in gas flow measurement, thereby improving the accuracy of the measurement.

[0008] Furthermore, the inner wall of the gauge base is provided with a pipe inlet and a pipe outlet. The pipe inlet is connected to the detection inlet, the pipe outlet is connected to the detection exhaust port, the pipe inlet and the pipe exhaust port are connected to the cavity of the guide hole, the pipe outlet is connected to the cavity of threaded joint A, and the pipe inlet is connected to the cavity of threaded joint B.

[0009] The above technical solution connects multiple vents, allowing gas to flow out smoothly after detection without leakage or loss, thus extending the service life of the metering equipment.

[0010] Furthermore, a display panel is fixedly connected to the surface of the meter housing, a display interface is fixedly connected to the inner wall of the display panel, and buttons A, B, and C are fixedly connected to the surface of the display panel.

[0011] With the above technical solution, after the gas flows through the connecting pipe, the pressure sensor and flow sensor transmit the data to the display panel, making it convenient for staff to observe changes in flow and pressure. In addition, the three buttons can control the display interface on the display panel.

[0012] Furthermore, a backup battery pack housing is fixedly connected to the surface of the meter housing. A 3.6V backup battery is detachably installed on the surface of the meter housing, and the 3.6V backup battery is located on the inner wall of the backup battery pack housing. The 3.6V backup battery is electrically connected to the display panel, and the 3.6V backup battery is electrically connected to the pressure sensor and the flow sensor.

[0013] With the above technical solution, the backup battery can continuously power the metering equipment during a power outage, making the metering equipment operate more stably. The backup battery can also be replaced by removing the backup battery pack casing.

[0014] Furthermore, the inner wall of the mounting plate is threaded with six screws A, which are threaded to the meter base; the inner wall of the meter housing is threaded with two screws B, which are threaded to the meter base; the inner wall of the display panel is threaded with four screws C, which are threaded to the meter housing; the inner wall of the meter base is threaded with eight screws D, which are threaded to threaded connectors A and B; and the inner wall of the spare battery pack housing is threaded with four screws E, which are threaded to the meter housing.

[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 sealing ring A is fixedly connected to the inner wall of the meter base, and the sealing ring A is located between the meter base and the mounting plate. A sealing ring B is fixedly connected to the surface of the meter base, and the sealing ring B is located between the meter base and the threaded joint A. A sealing ring C is fixedly connected to the surface of the meter base, and the sealing ring C is located between the meter base and the threaded joint B. A sealing ring D is fixedly connected to the surface of the meter base, and the sealing ring D is located between the meter base and the meter head housing. A sealing ring E is fixedly connected to the surface of the spare battery pack housing, and the sealing ring E is located between the spare battery pack housing and the meter head housing.

[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 base, a housing, a pressure sensor, and a flow sensor, can directly and accurately measure the mass flow rate of flowing gas and monitor the current gas pressure value in real time. This results in low pressure loss, wide range, high accuracy, and high reliability in gas flow measurement, thereby improving the accuracy of measurement. 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 schematic diagram of the disassembled structure of the meter head housing of this utility model;

[0023] Figure 4 This is a disassembled structural diagram of the base of this utility model;

[0024] Figure 5 This is a utility model Figure 4 Another perspective structural diagram.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Meter base; 2. Flow guide hole; 3. Detection air inlet; 4. Detection air outlet; 5. Pipe air inlet; 6. Pipe air outlet; 7. Pressure sensor; 8. Flow sensor; 9. Sealing ring A; 10. Threaded connector A; 11. Sealing ring B; 12. Screw A; 13. Threaded connector B; 14. Sealing ring C; 15. Screw B; 16. Sealing ring D; 17. External connector; 18. Display panel; 19. Meter housing; 20. Display interface; 21. Screw C; 22. Button A; 23. Button B; 24. Button C; 25. Screw D; 26. Mounting hole; 27. Spare battery housing; 28. Screw E; 29. ​​Sealing ring E; 30. 3.6V spare battery. Detailed Implementation

[0027] 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.

[0028] like Figures 1 to 5 As shown, an embodiment of this utility model provides a novel precision threaded gas mass flow meter, including: a base 1.

[0029] like Figures 1 to 5As shown, a meter head housing 19 is fixedly connected to the surface of the meter base 1, an external connector 17 is fixedly connected to the surface of the meter head housing 19, a threaded connector A10 is fixedly connected to the surface of the meter base 1, and a threaded connector B13 is fixedly connected to the surface of the meter base 1. Four mounting holes 26 are provided on the lower surface of the meter base 1, and a flow guide hole 2 is provided on the inner wall of the meter base 1. A pressure sensor 7 and a flow sensor 8 are installed inside the cavity of the meter base 1, and the pressure sensor 7 and flow sensor 8 are welded and fixed to the surface of the mounting plate. The mounting plate is fixedly connected to the meter base 1. A detection inlet hole 3 and a detection outlet hole 4 are provided on the inner wall of the meter base 1. After connecting the two ends of the flow meter to the gas pipe, a 24V external power supply is connected to the flow meter through the external connector 17. At this time, the flow meter works normally, and the gas enters the threaded connector B13 of the precision threaded gas mass flow meter through the gas pipe, and then flows through the threaded connector B13. 13. The gas enters the inlet 5 of the pipeline and then passes through the guide hole and the detection inlet 3. The gas in the guide hole directly enters the outlet, while the gas passing through the detection inlet 3 comes into contact with the pressure sensor 7 and the flow sensor 8. The data measured by the pressure sensor 7 and the flow sensor 8 are transmitted to the display panel 18 through the wire. Then, the gas passing through the detection inlet 3 and the gas from the pressure sensor 7 and the flow sensor 8 are discharged through the detection exhaust hole 4 and enter the pipeline outlet 6, and are discharged from the air pipe at the threaded joint A10. This directly and accurately measures the mass flow rate of the flowing gas and monitors the current air pressure value in real time. This results in low pressure loss, wide range, high accuracy, and high reliability in gas flow measurement, thereby improving the accuracy of measurement.

[0030] The inner wall of the meter base 1 has a pipe inlet 5 and a pipe outlet 6. The pipe inlet 5 is connected to the detection inlet 3, and the pipe outlet 6 is connected to the detection exhaust 4. The pipe inlet 5 and the pipe exhaust 6 are connected to the cavity of the guide hole 2, and the pipe outlet 6 is connected to the cavity of the threaded connector A10. The pipe inlet 5 is also connected to the cavity of the threaded connector B13. The interconnection between the multiple air holes allows the gas to flow out smoothly after detection, reducing leakage and loss, thereby extending the service life of the metering equipment. A display panel 18 is fixedly connected to the surface of the meter housing 19. A display interface 20 is fixedly connected to the inner wall of the display panel 18. Buttons A22, B23, and C24 are fixedly connected to the surface of the display panel 18. After the gas flows through the connecting pipe, the pressure sensor 7 and the flow sensor 8 transmit data to the display panel 18, allowing operators to easily observe changes in flow and pressure. The three buttons can also control the display interface 20 on the display panel 18. A backup battery pack housing 27 is fixedly connected to the surface of the meter housing 19. A 3.6V backup battery 30 is detachably installed on the surface of the meter housing 19, and the 3.6V backup battery 30 is located on the inner wall of the backup battery pack housing 27. The 3.6V backup battery 30 is electrically connected to the display panel 18, the pressure sensor 7, and the flow sensor 8. When the external power supply is interrupted, the battery pack on the back starts to supply power to ensure uninterrupted accuracy of the measurement. When the power is interrupted, the backup battery can continuously supply power to the metering equipment, making the metering equipment operate more stably. The backup battery can also be replaced by removing the backup battery pack housing 27.

[0031] The mounting plate has six screws A12 threadedly connected to its inner wall, which are threaded to the meter base 1. The meter housing 19 has two screws B15 threadedly connected to its inner wall, which are threaded to the meter base 1. The display panel 18 has four screws C21 threadedly connected to its inner wall, which are threaded to the meter housing 19. The meter base 1 has eight screws D25 threadedly connected to its inner wall, with four screws D25 threaded to threaded connectors A10 and B13. The spare battery pack housing 27 has four screws E28 threadedly connected to its inner wall, which are threaded to the meter housing 19. Using multiple screws to secure the connectors makes the metering device more stable and easier to disassemble. A sealing ring A9 is fixedly connected to the inner wall of the meter base 1. 9 is located between the meter base 1 and the mounting plate. A sealing ring B11 is fixedly connected to the surface of the meter base 1, and the sealing ring B11 is located between the meter base 1 and the threaded joint A10. A sealing ring C14 is fixedly connected to the surface of the meter base 1, and the sealing ring C14 is located between the meter base 1 and the threaded joint B13. A sealing ring D16 is fixedly connected to the surface of the meter base 1, and the sealing ring D16 is located between the meter base 1 and the meter head housing 19. A sealing ring E29 is fixedly connected to the surface of the spare battery pack housing 27, and the sealing ring E29 is located between the spare battery pack housing 27 and the meter head housing 19. The sealing rings are placed at various positions at the connection points so that when the screws are used for fixing, the sealing rings will be deformed by compression, which improves the airtightness of the metering equipment.

[0032] 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 the external connector 17. At this time, the flow meter works normally. The gas enters the threaded connector B 13 of the precision threaded gas mass flow meter through the air pipe, enters the pipe inlet 5 through the threaded connector B 13, and then simultaneously passes through the guide hole and the detection inlet 3. The gas in the guide hole directly enters the outlet, while the gas passing through the detection inlet 3 comes into contact with the pressure sensor 7 and the flow sensor 8. The data measured by the pressure sensor 7 and the flow sensor 8 is transmitted to the display panel 18 through the wire. Then, the gas passing through the detection inlet 3 and the gas from the pressure sensor 7 and the flow sensor 8 are discharged through the detection exhaust hole 4 and enter the pipe outlet 6, and are discharged from the air pipe at the threaded connector A10. When the external power supply is cut off, the battery pack on the back starts to supply power to ensure uninterrupted accuracy of the measurement.

[0033] 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 threaded gas mass flow meter, characterized in that, include: The base (1) is fixedly connected to the surface of the base (1), the surface of the meter head housing (19) is fixedly connected to the surface of the meter head housing (19), the surface of the meter head housing (19) is fixedly connected to the external connector (17), the surface of the base (1) is fixedly connected to the threaded connector A (10), the surface of the base (1) is fixedly connected to the threaded connector B (13), the lower surface of the base (1) is provided with four mounting holes (26), the inner wall of the base (1) is provided with a flow guide hole (2), the cavity of the base (1) is equipped with a pressure sensor (7) and a flow sensor (8), and the pressure sensor (7) and the flow sensor (8) are welded and fixed to the surface of the mounting plate, the mounting plate is fixedly connected to the base (1), and the inner wall of the base (1) is provided with a detection air inlet hole (3) and a detection exhaust hole (4).

2. The novel precision threaded gas mass flow meter according to claim 1, characterized in that, The inner wall of the base (1) is provided with a pipe inlet hole (5) and a pipe outlet hole (6). The pipe inlet hole (5) is connected to the detection inlet hole (3), the pipe outlet hole (6) is connected to the detection exhaust hole (4), the pipe inlet hole (5) and the pipe exhaust hole are connected to the cavity of the guide hole (2), the pipe outlet hole (6) is connected to the cavity of the threaded joint A (10), and the pipe inlet hole (5) is connected to the cavity of the threaded joint B (13).

3. The novel precision threaded gas mass flow meter according to claim 1, characterized in that, The display panel (18) is fixedly connected to the surface of the meter housing (19), the display interface (20) is fixedly connected to the inner wall of the display panel (18), and the button A (22), button B (23) and button C (24) are fixedly connected to the surface of the display panel (18).

4. A novel precision threaded gas mass flow meter according to claim 1, characterized in that, A backup battery housing (27) is fixedly connected to the surface of the meter housing (19). A 3.6V backup battery (30) is detachably installed on the surface of the meter housing (19), and the 3.6V backup battery (30) is located on the inner wall of the backup battery housing (27). The 3.6V backup battery (30) is electrically connected to the display panel (18) and to the pressure sensor (7) and flow sensor (8).

5. A novel precision threaded gas mass flow meter according to claim 4, characterized in that, The mounting plate has six screws A (12) threaded on its inner wall, and the six screws A (12) are threaded to the base (1). The meter housing (19) has two screws B (15) threaded on its inner wall, and the two screws B (15) are threaded to the base (1). The display panel (18) has four screws C (21) threaded on its inner wall, and the four screws C (21) are threaded to the meter housing (19). The base (1) has eight screws D (25) threaded on its inner wall, and the four screws D (25) are threaded to the threaded connector A (10) and the four screws D (25) are threaded to the threaded connector B (13). The spare battery housing (27) has four screws E (28) threaded on its inner wall, and the four screws E (28) are threaded to the meter housing (19).

6. A novel precision threaded gas mass flow meter according to claim 4, characterized in that, A sealing ring A (9) is fixedly connected to the inner wall of the meter base (1), and the sealing ring A (9) is located between the meter base (1) and the mounting plate. A sealing ring B (11) is fixedly connected to the surface of the meter base (1), and the sealing ring B (11) is located between the meter base (1) and the threaded joint A (10). A sealing ring C (14) is fixedly connected to the surface of the meter base (1), and the sealing ring C (14) is located between the meter base (1) and the threaded joint B (13). A sealing ring D (16) is fixedly connected to the surface of the meter base (1), and the sealing ring D (16) is located between the meter base (1) and the meter head housing (19). A sealing ring E (29) is fixedly connected to the surface of the spare battery pack housing (27), and the sealing ring E (29) is located between the spare battery pack housing (27) and the meter head housing (19).

Images