CN220542148U - Flowmeter for measuring flow rate - Google Patents
Flowmeter for measuring flow rate Download PDFInfo
- Publication number
- CN220542148U CN220542148U CN202321201269.7U CN202321201269U CN220542148U CN 220542148 U CN220542148 U CN 220542148U CN 202321201269 U CN202321201269 U CN 202321201269U CN 220542148 U CN220542148 U CN 220542148U
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- flowmeter
- filter
- shell
- installation cavity
- gas
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- 238000009434 installation Methods 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 230000002265 prevention Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 42
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a flowmeter, which comprises a flowmeter shell, wherein an installation cavity is formed in the flowmeter shell, an installation opening communicated with the installation cavity is formed in the flowmeter shell, a positioning frame is arranged in the installation cavity, and a conjugate rotor which is positioned in the installation cavity, rotates along the installation cavity and is in transmission connection is arranged on the positioning frame; the flowmeter shell is provided with an inlet pipe and an outlet pipe which are positioned at two sides of the conjugate rotor, two ends of the locating rack are provided with end plates for closing the mounting port, an encoder for measuring the number of rotation turns of the transmission shaft is arranged in the instrument shell; a temperature sensor for detecting the temperature of the fluid is arranged on the inlet pipe; the utility model carries out temperature correction by arranging a temperature sensor to measure the temperature of the gas, therefore, the gas flow under the standard environment is calculated by matching the gas volume at the temperature, so that the detection result is more accurate.
Description
Technical Field
The utility model relates to the technical field of flowmeters, in particular to a flowmeter.
Background
In the industrial or civil field, there are air, water, gas and various gases to be measured, and these fluids have a very close relationship with the daily life and social activities of people. Mass Flow Meters (MFMs) are used for precisely measuring the Mass Flow of a gas, and have important applications in the scientific research and production in various fields such as semiconductor and integrated circuit industry, specialty materials science, chemical industry, petroleum industry, medicine, environmental protection, and vacuum; however, when the flow of the gas is monitored, the volume of the gas may be changed due to factors such as pressure and temperature, so that the measurement result may be inaccurate.
Disclosure of Invention
In order to solve the defect that in the prior art, when the flow of gas is monitored, the volume of the gas can be changed due to factors such as pressure, temperature and the like, so that a measurement result is inaccurate, the utility model provides a flowmeter.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model relates to a flowmeter, which comprises a flowmeter shell, wherein an installation cavity is arranged in the flowmeter shell, an installation port communicated with the installation cavity is arranged on the flowmeter shell, and a conjugate rotor which rotates along the installation cavity and is in transmission connection is arranged in the installation cavity; the flowmeter comprises a flowmeter shell, a rotor and a rotor, wherein an inlet pipe and an outlet pipe are arranged on the two sides of the rotor, and end plates for closing an installation opening are arranged on the two ends of the rotor; a closing plate positioned at the outer side of the end plate is also arranged on the flowmeter shell; the closing plate is provided with a vertical upward connecting pipe, and the shaft end of the conjugate rotor is connected with a transmission shaft penetrating through the connecting pipe; an instrument shell is arranged at the end part of the connecting pipe, and an encoder for measuring the rotation number of the transmission shaft is arranged in the instrument shell; a temperature sensor for detecting the temperature of the fluid is arranged on the inlet pipe; the inside of instrument casing still is equipped with the processor module, encoder and temperature sensor all are connected with the processor module.
As a preferable technical scheme of the utility model, the conjugated rotors are connected through synchronous gear transmission.
As a preferable technical scheme of the utility model, an oil injection cavity is formed between the end plate and the closing plate, and the closing plate is provided with an oil injection hole for injecting oil into the oil injection cavity.
As a preferable technical scheme of the utility model, the inlet pipe is also provided with a pressure gauge connected with the processor module.
As a preferable technical scheme of the utility model, the end plate is provided with a limiting insert block, and the inner wall of the mounting cavity is provided with a limiting slot for inserting the limiting insert block.
As a preferable technical scheme of the utility model, the processor module is used for calculating the flow of the gas according to the received rotation turns of the transmission shaft detected by the encoder, the gas temperature detected by the temperature sensor and the gas pressure detected by the pressure gauge.
As a preferable technical scheme of the utility model, a filter is arranged at the inlet pipe; the filter comprises a filter main body, a filter screen cylinder is arranged in the filter main body, a backflow prevention filter mechanism is arranged at the liquid inlet end of the filter screen cylinder, the backflow prevention filter mechanism comprises a cover arranged at the inlet end of the filter screen cylinder, an inward horn-shaped backflow prevention filter screen is arranged at the cover, and a filter end screen recessed inwards is arranged at the outlet end of the filter screen cylinder.
As a preferable technical scheme of the utility model, the filter main body is provided with an inlet pipe connected with the inlet end of the filter screen cylinder; the filter body is provided with a discharge pipe, and a sealing end cover is arranged at the bottom of the filter body in a threaded manner.
The beneficial effects of the utility model are as follows:
the flowmeter drives the conjugate rotor when gas passes through the mounting cavity, the flow of the gas is measured by rotating the conjugate rotor, the temperature of the gas is measured by arranging the temperature sensor, and the temperature correction is carried out, so that the gas volume under the temperature is matched, the gas flow under the standard environment is calculated, and the detection result is more accurate. In addition, the gas can be filtered through the filter, and filtered particles and dust are collected in a concentrated mode, so that gas backflow is avoided and is taken away, regular cleaning is convenient, abrasion caused by impact of particles carried in the gas on the conjugate rotor is avoided, and the service life of the conjugate rotor is prolonged.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a measurement state diagram of a flowmeter of the present utility model;
FIG. 2 is a schematic view of the structure of a mounting cavity of a flowmeter according to the present utility model;
FIG. 3 is a schematic view of the structure of a flowmeter of the present utility model;
FIG. 4 is a schematic view of the structure of a mounting port of a flowmeter according to the present utility model;
fig. 5 is a schematic view of the structure of a filter of a flowmeter according to the present utility model.
In the figure: 1. a flowmeter housing; 2. a mounting cavity; 3. a mounting port; 5. a conjugate rotor; 6. feeding a pipe; 7. a pipe outlet; 8. an end plate; 9. a closing plate; 10. a connecting pipe; 11. a transmission shaft; 12. an instrument housing; 13. an encoder; 14. a temperature sensor; 15. a processor module; 16. an oil filling cavity; 17. an oil filling hole; 18. a pressure gauge; 19. limiting plug blocks; 20. a limit slot; 21. a filter; 22. a filter body; 23. a filter screen cylinder; 24. a backflow prevention filter mechanism; 25. cover entering; 26. a backflow prevention filter screen; 27. a filter end net; 28. a synchronizing gear; 29. an inlet tube; 30. a discharge pipe; 31. and sealing the end cover.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
Examples: as shown in fig. 1, 2, 3, 4 and 5, the flowmeter of the utility model comprises a flowmeter shell 1, wherein an installation cavity 2 is arranged in the flowmeter shell 1, an installation port 3 communicated with the installation cavity 2 is arranged on the flowmeter shell 1, and a conjugate rotor 5 which rotates along the installation cavity 2 and is in transmission connection is arranged in the installation cavity 2; the flowmeter comprises a flowmeter shell 1, wherein an inlet pipe 6 and an outlet pipe 7 are arranged on two sides of a conjugate rotor 5, and end plates 8 for closing an installation opening 3 are arranged on two ends of the conjugate rotor 5; the flowmeter shell 1 is also provided with a closing plate 9 positioned outside the end plate 8; a vertical upward connecting pipe 10 is arranged on the closing plate 9, and the shaft end of the conjugate rotor 5 is connected with a transmission shaft 11 penetrating through the connecting pipe 10; an instrument shell 12 is arranged at the end part of the connecting pipe 10, and an encoder 13 for metering the rotation number of the transmission shaft 11 is arranged in the instrument shell 12; a temperature sensor 14 for detecting the temperature of the fluid is arranged on the inlet pipe 6; the inside of the instrument housing 12 is also provided with a processor module 15, and the encoder 13 and the temperature sensor 14 are connected with the processor module 15. When the gas passes through the mounting cavity 2, the conjugate rotor 5 is driven, the flow of the gas is measured by rotating the conjugate rotor 5, the temperature of the gas is measured by arranging the temperature sensor 14, and the temperature correction is carried out, so that the gas flow under the standard environment is calculated by matching the gas volume under the temperature, and the detection result is more accurate.
Wherein, the conjugated rotors 5 are in transmission connection through a synchronous gear 28; ensure the synchronous movement of the conjugate rotor to open and close the air supply.
An oil injection cavity 16 is formed between the end plate 8 and the closing plate 9, and an oil injection hole 17 for injecting oil into the oil injection cavity is formed in the closing plate; the synchronous gear is soaked in the oil injection cavity, synchronous rotation of the synchronous gear is easy, and rotation resistance is reduced.
The pressure gauge 18 connected with the processor module 15 is further arranged on the inlet pipe 6 to measure the pressure of the gas and correct the pressure, so that the gas flow under the standard pressure environment is calculated by matching the gas volume under the pressure, and the detection result is more accurate.
The end plate 8 is provided with a limiting insert block 19, and the inner wall of the installation cavity 2 is provided with a limiting slot 20 for inserting the limiting insert block 19; plays a limiting role and is easy to install.
The processor module 15 is configured to calculate a flow rate of the gas according to the received number of turns of the transmission shaft 11 detected by the encoder 13, the gas temperature detected by the temperature sensor 14, and the gas pressure detected by the pressure gauge 18.
A filter 21 is arranged at the position of the inlet pipe 6; the filter 21 comprises a filter main body 22, a filter screen cylinder 23 is arranged in the filter main body 22, a backflow preventing filter mechanism 24 is arranged at the liquid inlet end of the filter screen cylinder 23, the backflow preventing filter mechanism 24 comprises a cover 25 arranged at the inlet end of the filter screen cylinder 23, the cover 25 is provided with an inward horn-shaped backflow preventing filter screen 26, and the outlet end of the filter screen cylinder 23 is provided with an inward concave filter end screen 27; the filter main body 22 is provided with an inlet pipe 29 connected with the inlet end of the filter screen cylinder 23; the filter body 22 is provided with a discharge pipe 30 thereon, and a sealing end cap 31 is screw-mounted to the bottom of the filter body 22. In addition, the filter 21 is arranged to filter the gas, and the filtered particles and dust are collected in a concentrated manner, so that the gas is prevented from flowing back and being taken away, the gas is convenient to clean regularly, the particles carried in the gas are prevented from impacting the conjugated rotor 5 to cause abrasion, and the service life of the conjugated rotor 5 is shortened.
Working principle: when the gas passes through the mounting cavity 2, the conjugate rotor 5 is driven, the flow of the gas is measured by rotating the conjugate rotor 5, the temperature of the gas is measured by arranging the temperature sensor 14, and the temperature correction is carried out, so that the gas flow under the standard environment is calculated by matching the gas volume under the temperature, and the detection result is more accurate. In addition, the filter 21 is arranged to filter the gas, and the filtered particles and dust are collected in a concentrated manner, so that the gas is prevented from flowing back and being taken away, the gas is convenient to clean regularly, the particles carried in the gas are prevented from impacting the conjugated rotor 5 to cause abrasion, and the service life of the conjugated rotor 5 is shortened.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. The flowmeter is characterized by comprising a flowmeter shell (1), wherein an installation cavity (2) is arranged in the flowmeter shell (1), an installation port (3) communicated with the installation cavity (2) is arranged on the flowmeter shell (1), and a conjugate rotor (5) which rotates along the installation cavity (2) and is in transmission connection is arranged in the installation cavity (2); the flowmeter is characterized in that an inlet pipe (6) and an outlet pipe (7) which are positioned at two sides of the conjugate rotor (5) are arranged on the flowmeter shell (1), and end plates (8) for closing the mounting ports (3) are arranged at two ends of the conjugate rotor (5); a closing plate (9) positioned at the outer side of the end plate (8) is also arranged on the flowmeter shell (1); a vertical upward connecting pipe (10) is arranged on the closing plate (9), and the shaft end of the conjugate rotor (5) is connected with a transmission shaft (11) penetrating through the connecting pipe (10); an instrument shell (12) is arranged at the end part of the connecting pipe (10), and an encoder (13) for metering the rotation number of the transmission shaft (11) is arranged in the instrument shell (12); a temperature sensor (14) for detecting the temperature of the fluid is arranged on the inlet pipe (6); the inside of instrument casing (12) still is equipped with processor module (15), encoder (13) and temperature sensor (14) are all connected with processor module (15).
2. A flowmeter according to claim 1, characterized in that said conjugated rotors (5) are drivingly connected via a synchronizing gear (28).
3. A flowmeter according to claim 1, characterized in that an oil filling chamber (16) is formed between the end plate (8) and the closure plate (9), and that the closure plate is provided with an oil filling hole (17) for filling oil into the oil filling chamber.
4. A flowmeter according to claim 1, characterized in that said inlet pipe (6) is further provided with a pressure gauge (18) connected to the processor module (15).
5. A flowmeter according to claim 1, characterized in that the end plate (8) is provided with a limit insert (19), and the inner wall of the mounting cavity (2) is provided with a limit slot (20) into which the limit insert (19) is inserted.
6. A flow meter according to claim 4, characterized in that the processor module (15) is adapted to calculate the flow rate of the gas on the basis of the number of turns of the drive shaft (11) detected by the encoder (13), the temperature of the gas detected by the temperature sensor (14) and the pressure of the gas detected by the pressure gauge (18).
7. A flowmeter according to claim 5, characterized in that said inlet pipe (6) is provided with a filter (21); the filter (21) comprises a filter main body (22), a filter screen cylinder (23) is arranged in the filter main body (22), a backflow prevention filter mechanism (24) is arranged at the liquid inlet end of the filter screen cylinder (23), the backflow prevention filter mechanism (24) comprises a cover (25) arranged at the inlet end of the filter screen cylinder (23), the cover (25) is provided with an inward and horn-shaped backflow prevention filter screen (26), and a filter end screen (27) recessed inwards is arranged at the outlet end of the filter screen cylinder (23).
8. A flowmeter according to claim 7, characterized in that said filter body (22) is provided with an inlet pipe (29) connected to the inlet end of the filter cartridge (23); the filter body (22) is provided with a discharge pipe (30), and a sealing end cover (31) is arranged at the bottom of the filter body (22) in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321201269.7U CN220542148U (en) | 2023-05-18 | 2023-05-18 | Flowmeter for measuring flow rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321201269.7U CN220542148U (en) | 2023-05-18 | 2023-05-18 | Flowmeter for measuring flow rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220542148U true CN220542148U (en) | 2024-02-27 |
Family
ID=89975821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321201269.7U Active CN220542148U (en) | 2023-05-18 | 2023-05-18 | Flowmeter for measuring flow rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220542148U (en) |
-
2023
- 2023-05-18 CN CN202321201269.7U patent/CN220542148U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |