CN213748580U

CN213748580U - Novel gas flowmeter

Info

Publication number: CN213748580U
Application number: CN202022742666.8U
Authority: CN
Inventors: 胡培凯; 索建军; 张建强
Original assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Current assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-20
Anticipated expiration: 2030-11-24

Abstract

The utility model relates to a flowmeter technical field especially relates to a novel gas flowmeter, including flowmeter main part and flowmeter top cap, the flowmeter top cap is connected with the one end cooperation of flowmeter main part, flow strip hole has been seted up to intercommunication round platform outer wall, the one end of counter is as for flowmeter main part and intercommunication round platform intercommunication department, flowmeter main part outer wall is the fixed external device base that is provided with still, be provided with the flowmeter display on this external device base, flowmeter display and counter electric connection have data wire, flowmeter top cap top intercommunication have with intercommunication round platform complex round platform lid, control drive module all is connected with a FPC controller electric control. The utility model discloses a be provided with the flowmeter display, flowmeter display and counter electric connection have the data conductor, and the flowmeter main part will carry out the two through the sealed item of circle after in-service use flowmeter main part and flowmeter top cap are connected to seal, have the gas tightness advantage that improves this device, provide the basis to improving measurement accuracy.

Description

Novel gas flowmeter

Technical Field

The utility model relates to a flowmeter technical field especially relates to a novel gas flowmeter.

Background

The existing gas meter for small commercial gas users (flow range is 0-50 cubic meters per hour) mainly adopts a diaphragm type mechanical meter which is large in size, and a digital conversion device is additionally arranged for converting mechanical signals into electronic signals according to measured data, so that the difficulty and cost of installation and maintenance are increased. The range ratio of the existing mechanical instrument and the electronic gas flowmeter is limited in the design of a mechanical meter structure and an electronic element, the general range ratio is not large, a large range measurement can be often met, but a small range measurement can not be met, and meanwhile, due to the fact that the internal environment of a gas flow channel is complex, the sensor cannot find and maintain in time when being polluted or damaged, and the gas flow measurement is inaccurate. How to provide a gas flowmeter with convenient installation, large measuring range and accurate measurement is a technical problem which needs to be solved urgently for technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel gas flowmeter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel gas flowmeter comprises a flowmeter body and a flowmeter top cover, wherein the flowmeter top cover is connected with one end of the flowmeter body in a matching manner, one end of the flowmeter body is communicated with a communicating circular truncated cone, the outer wall of the communicating circular truncated cone is provided with flow strip holes, the flow strip holes are distributed based on the circumference array of the central line of the communicating circular truncated cone, the bottom of the communicating circular truncated cone is connected with the end of the flowmeter body, the diameter of the communicating circular truncated cone is smaller than that of the end of the flowmeter body, the end of the flowmeter body is also provided with a ring sealing item, the communicating circular truncated cone is positioned in the flowmeter top cover when the flowmeter body and the flowmeter top cover are integrated, the flowmeter body also comprises a pushing screw roller and a counter, one end of the counter is positioned at the communicating position of the flowmeter body and the communicating circular truncated cone, the outer wall of the flowmeter body is also fixedly provided with an external equipment base, and a flowmeter display is arranged on the external equipment base, the flowmeter display and the counter are electrically connected with a data wire.

Further, flowmeter top cap top intercommunication have with intercommunication round platform complex round platform lid, the round platform lid is kept away from intercommunication round platform end and is had connect the bottom tube that admits air, the bottom tube that admits air is kept away from round platform lid end and is had connect the external pipe that admits air.

Furthermore, the pushing screw roller is cylindrical, the outer wall of the pushing screw roller is provided with a flow metering blade, and the central line of the top of the pushing screw roller is fixedly connected with the metering shaft of the counter.

Furthermore, the end of the flowmeter main body, which is far away from the communicating round table, is communicated with an air outlet connecting pipeline.

Further, the flowmeter display comprises a flow display system and a flow comparison system, the flow display system comprises a CMOS sensor, a control driving module and a first FPC controller, the CMOS sensor and the control drive module are electrically connected with the first FPC controller in a control way, the flow comparison system comprises a flow sensor, a signal collection and conversion module, a power supply, a flow comparison system and a CAN interface, the signal collecting and converting module, the power supply and the flow rate comparison system are all electrically connected with the flow rate sensor in a control way, the flow sensor is electrically connected with the CAN interface in a control way, the FPGA processing system comprises a second FPC controller, an FPGA chip and a memory chip, the second FPC controller and the memory chip are electrically connected with the FPGA chip in a control mode, the first FPC controller is electrically connected with the second FPC controller, and the CAN interface is electrically connected with the FPGA chip.

Compared with the prior art, the utility model provides a novel gas flowmeter has following beneficial effect:

the novel gas flowmeter is characterized in that the outer wall of a communicating circular truncated cone is provided with flow strip holes which are distributed based on the circumferential array of the center line of the communicating circular truncated cone, the bottom of the communicating circular truncated cone is connected with the end part of a flowmeter main body, the diameter of the communicating circular truncated cone is smaller than that of the end part of the flowmeter main body, in actual use, gas enters an air inlet bottom pipe through an air outer connecting pipe and then enters a circular truncated cone cover, finally, the entered gas is uniformly dispersed through the flow strip holes through the circular truncated cone cover and flows into the flowmeter main body, so that flow blades arranged on the flowmeter main body are uniformly pushed, the whole pushing screw roller is driven to rotate, a counter connected with the pushing screw roller is involved in flow measurement work, and the flowing gas is relatively uniform, so that the metering data with high and low levels are not easily generated, the advantage of improving the data accuracy is achieved, and the end part of the flowmeter main body is also provided with a ring sealing item, inside the intercommunication round platform was located the flowmeter top cap when being based on flowmeter main part and flowmeter top cap integration, inside still including promoting spiral shell roller and the counter of flowmeter main part, the one end of counter is as for flowmeter main part and intercommunication round platform intercommunication department, flowmeter main part outer wall still fixedly is provided with the external device base, be provided with the flowmeter display on this external device base, flowmeter display and counter electric connection have the data wire, in-service use flowmeter main part and flowmeter top cap are connected the back and will carry out the two through the sealed item of circle and seal, have the gas tightness advantage that improves this device, provide the basis to improving the measurement accuracy.

This novel gas flowmeter, the flowmeter display is including flow display system and flow comparison system, flow display system is including the CMOS sensor, control driver module, FPGA processing system and first FPC controller, the CMOS sensor, control driver module all is connected with first FPC controller electric control, flow comparison system is including flow sensor, signal collection conversion module, a power supply, flow comparison system and CAN interface, signal collection conversion module, a power supply, flow comparison system all is connected with flow sensor electric control, the produced data of counter passes through data wire and transmits to the flowmeter display in the in-service use, CAN realize counting the purpose of carrying out accurate collection and demonstration to the counter through acoustic flowmeter display and flow display system mutually supporting, have advantages such as data are accurate and show clearly.

Drawings

Fig. 1 is a schematic structural diagram of the whole of the novel gas flowmeter provided by the present invention.

Fig. 2 is a schematic structural diagram of the whole of the novel gas flowmeter provided by the present invention.

Fig. 3 is a schematic structural diagram of a system of the novel gas flowmeter provided by the present invention.

In the figure: 1. a flow meter body; 2. a flowmeter top cover; 3. the circular truncated cone is communicated; 4. a flow bar orifice; 5. a ring seal item; 6. pushing the screw roller; 7. a counter; 8. an external equipment base; 9. a flow meter display; 10. a data conductor; 11. a circular table cover; 12. an air inlet bottom pipe; 13. an air inlet external pipe; 14. a metering blade; 15. an air outlet connecting pipeline; 16. a flow display system; 17. a flow comparison system; 18. a CMOS sensor; 19. a control drive module; 20. a first FPC controller; 21. an FPGA processing system; 22. a flow sensor; 23. a signal collection and conversion module; 24. a power source; 25. a flow comparison system; 26. a CAN interface; 27. a second FPC controller; 28. an FPGA chip; 29. and (4) memory chips.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a novel gas flowmeter comprises a flowmeter main body 1 and a flowmeter top cover 2, wherein the flowmeter top cover 2 is connected with one end of the flowmeter main body 1 in a matching manner, one end of the flowmeter main body 1 is connected with a communicating circular truncated cone 3 in a communicating manner, the outer wall of the communicating circular truncated cone 3 is provided with flow strip holes 4, the flow strip holes 4 are distributed in a circumferential array manner based on the central line of the communicating circular truncated cone 3, the bottom of the communicating circular truncated cone 3 is connected with the end of the flowmeter main body 1, the diameter of the communicating circular truncated cone 3 is smaller than that of the end of the flowmeter main body 1, the end of the flowmeter main body 1 is also provided with a ring sealing part 5, the communicating circular truncated cone 3 is positioned inside the flowmeter top cover 2 when being integrated based on the flowmeter main body 1 and the flowmeter top cover 2, the flowmeter main body 1 also, the external equipment base 8 is provided with a flowmeter display 9, and the flowmeter display 9 and the counter 7 are electrically connected with a data wire 10.

The top of the flowmeter top cover 2 is communicated with a circular table cover 11 matched with the communicating circular table 3, the end of the circular table cover 11 far away from the communicating circular table 3 is communicated with an air inlet bottom pipe 12, and the end of the air inlet bottom pipe 12 far away from the circular table cover 11 is communicated with an air inlet external pipe 13.

The pushing screw roller 6 is cylindrical, the outer wall of the pushing screw roller is further provided with a flow metering blade 14, and the central line of the top of the pushing screw roller 6 is fixedly connected with a metering shaft of the counter 7.

The end of the flowmeter body 1 far away from the communicating circular truncated cone 3 is communicated with an air outlet connecting pipeline 15.

The flowmeter display 9 comprises a flow display system 16 and a flow comparison system 17, the flow display system 16 comprises a CMOS sensor 18, a control driving module 19, an FPGA processing system 21 and a first FPC controller 20, the CMOS sensor 18 and the control driving module 19 are electrically connected with the first FPC controller 20, the flow comparison system 17 comprises a flow sensor 22, a signal collection and conversion module 23, a power supply 24, a flow comparison system 25 and a CAN interface 26, the signal collection and conversion module 23, the power supply 24 and the flow comparison system 25 are electrically connected with the flow sensor 22, the flow sensor 22 is electrically connected with the CAN interface 26, the FPGA processing system 21 comprises a second FPC controller 27, an FPGA chip 28 and a memory chip 29, the second FPC controller 27 and the memory chip 29 are electrically connected with the FPGA chip 28, the first FPC controller 20 is electrically connected with the second FPC controller 27, the CAN interface 26 is electrically connected to the FPGA chip 28.

In the utility model, when in use, the outer wall of the communicating circular truncated cone 3 is provided with flow strip holes 4, the flow strip holes 4 are distributed based on the circumference array of the central line of the communicating circular truncated cone 3, the bottom of the communicating circular truncated cone 3 is connected with the end part of the flowmeter main body 1, the diameter of the communicating circular truncated cone 3 is smaller than that of the end part of the flowmeter main body 1, in actual use, gas enters the gas inlet bottom pipe 12 through the gas outer connecting pipe 13 and then enters the circular truncated cone cover 11 through the gas inlet bottom pipe 12, finally, the entered gas is uniformly dispersed through the flow strip holes 4 through the circular truncated cone cover 11 and then flows into the flowmeter main body 1, thereby realizing uniform pushing of the flow blades 14 arranged on the flowmeter main body 1, further driving the whole pushing spiral roller 6 to rotate, leading the counter 7 connected with the spiral roller to intervene in flow measurement work, because the entered gas is uniform, the metering data with high or low precision is not easy to be generated, therefore, the device has the advantage of improving the data precision, the end part of the flowmeter main body 1 is also provided with a ring sealing part 5, the communicating circular truncated cone 3 is positioned inside the flowmeter top cover 2 based on the integration of the flowmeter main body 1 and the flowmeter top cover 2, the flowmeter main body 1 is also internally provided with a pushing screw roller 6 and a counter 7, one end of the counter 7 is arranged at the communicating part of the flowmeter main body 1 and the communicating circular truncated cone 3, the outer wall of the flowmeter main body 1 is also fixedly provided with an external equipment base 8, a flowmeter display 9 is arranged on the external equipment base 8, the flowmeter display 9 and the counter 7 are electrically connected with a data lead 10, the flowmeter main body 1 and the flowmeter top cover 2 are sealed by the ring sealing part 5 in actual use, the gas tightness of the flowmeter main body has the advantage of improving the device, the basis is provided for improving the metering precision, the flowmeter display 9 comprises a flow display system 16 and a flow comparison system 17, the flow display system 16 comprises a CMOS sensor 18, Control drive module 19, FPGA processing system 21 and first FPC controller 20, CMOS sensor 18, control drive module 19 all is connected with first FPC controller 20 electric control, flow comparison system 17 is including flow sensor 22, signal collection conversion module 23, power 24, flow comparison system 25 and CAN interface 26, signal collection conversion module 23, power 24, flow comparison system 25 all is connected with flow sensor 22 electric control, the produced data of counter 7 passes through data wire 10 and transmits to flowmeter display 9 in the in-service use, CAN realize the purpose of carrying out accurate collection and demonstration to the count of counter 7 through mutually supporting of acoustic flowmeter display 9 and flow display system 16, have advantages such as data are accurate and show clearly.

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

Claims

1. A novel gas flowmeter comprises a flowmeter body (1) and a flowmeter top cover (2), and is characterized in that the flowmeter top cover (2) is connected with one end of the flowmeter body (1) in a matched manner, one end of the flowmeter body (1) is communicated with a communicating circular truncated cone (3), a flow strip hole (4) is formed in the outer wall of the communicating circular truncated cone (3), the flow strip hole (4) is distributed based on the circumference array of the central line of the communicating circular truncated cone (3), the bottom of the communicating circular truncated cone (3) is connected with the end of the flowmeter body (1) in a connected manner, the diameter of the communicating circular truncated cone (3) is smaller than that of the end of the flowmeter body (1), a ring sealing item (5) is further arranged at the end of the flowmeter body (1), the communicating circular truncated cone (3) is located inside the flowmeter top cover (2) when being integrated based on the flowmeter body (1) and the flowmeter top cover (2), and a pushing screw roller (6) and a counter (7) are further arranged inside the flowmeter body (1), one end of the counter (7) is connected with the communication position of the flowmeter main body (1) and the communication circular truncated cone (3), an external device base (8) is fixedly arranged on the outer wall of the flowmeter main body (1), a flowmeter display (9) is arranged on the external device base (8), and the flowmeter display (9) and the counter (7) are electrically connected with a data wire (10).

2. The novel gas flowmeter as claimed in claim 1, wherein the top of the flowmeter top cover (2) is communicated with a circular table cover (11) matched with the communication circular table (3), the end of the circular table cover (11) far away from the communication circular table (3) is communicated with an air inlet bottom pipe (12), and the end of the air inlet bottom pipe (12) far away from the circular table cover (11) is communicated with an air inlet external pipe (13).

3. The novel gas flowmeter as claimed in claim 1, wherein the pushing screw roller (6) is cylindrical and is further provided with a flow metering blade (14) on the outer wall, and the top center line of the pushing screw roller (6) is fixedly connected with a metering shaft of the counter (7).

4. The novel gas flowmeter as claimed in claim 1, wherein the end of the flowmeter body (1) far from the communicating truncated cone (3) is communicated with a gas outlet connecting pipeline (15).

5. The novel gas flowmeter as claimed in claim 1, wherein the flowmeter display (9) comprises a flow display system (16) and a flow comparison system (17), the flow display system (16) comprises a CMOS sensor (18), a control driving module (19), an FPGA processing system (21) and a first FPC controller (20), the CMOS sensor (18) and the control driving module (19) are electrically connected with the first FPC controller (20), the flow comparison system (17) comprises a flow sensor (22), a signal collection and conversion module (23), a power supply (24), a flow comparison system (25) and a CAN interface (26), the signal collection and conversion module (23), the power supply (24) and the flow comparison system (25) are electrically connected with the flow sensor (22), and the flow sensor (22) is electrically connected with the CAN interface (26), FPGA processing system (21) is including second FPC controller (27), FPGA chip (28) and memory chip (29), second FPC controller (27) and memory chip (29) all are connected with FPGA chip (28) electric control, first FPC controller (20) and second FPC controller (27) electric connection, CAN interface (26) and FPGA chip (28) electric connection.