CN218916438U - Gas ultrasonic flowmeter with calibration function - Google Patents
Gas ultrasonic flowmeter with calibration function Download PDFInfo
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- CN218916438U CN218916438U CN202221714615.7U CN202221714615U CN218916438U CN 218916438 U CN218916438 U CN 218916438U CN 202221714615 U CN202221714615 U CN 202221714615U CN 218916438 U CN218916438 U CN 218916438U
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Abstract
The utility model discloses a gas ultrasonic flowmeter with a calibration function, and relates to the technical field of flowmeters. The utility model relates to a gas ultrasonic flowmeter with a calibration function, which reduces the calibration error of a flowmeter main body through a calibration assembly and a clamping assembly, can improve the metering accuracy of gas when the flowmeter main body is used later, is convenient for the use of the flowmeter main body, improves the practicability of the flowmeter main body, can facilitate the disassembly and assembly of the flowmeter main body, is convenient for the maintenance of the later flowmeter main body, and is simple and convenient to operate.
Description
Technical Field
The utility model relates to the technical field of flowmeters, in particular to a gas ultrasonic flowmeter with a calibration function.
Background
The gas mass flowmeter is used for measuring the volume flow of gas, and is mainly characterized in that the gas mass flowmeter is not influenced by temperature and pressure fluctuation, the display reading of the gas mass flowmeter directly indicates the mass flow of gas, and the gas mass flowmeter is arranged in a pipeline to record the flowing gas quantity. It is possible to measure, for example, blast furnace gas flow meters, coke oven gas mass flow meters, gases, air, nitrogen, acetylene, phosgene, hydrogen, natural gas, nitrogen, liquefied petroleum gas, hydrogen peroxide, flue gas, methane, butane, chlorine, gas, biogas, carbon dioxide, oxygen, compressed air, argon, toluene, benzene, xylene, hydrogen sulfide, sulfur dioxide, ammonia and the like.
Currently, in the market, a gas flowmeter is a device for detecting gas, and a newly produced flowmeter is required to be calibrated through verification, so that the gas flowmeter can be used.
The existing gas flowmeter is relatively poor in calibration of gas flow, and relatively large in calibration error, so that when the gas flowmeter is used, the condition that the gas flow is inaccurate in measurement easily occurs, the gas flowmeter is inconvenient to install and detach, and the later maintenance is inconvenient, and therefore, the gas ultrasonic flowmeter with the calibration function is necessary.
Disclosure of Invention
The utility model mainly aims to provide the gas ultrasonic flowmeter with the calibration function, which can effectively solve the problems that the existing gas flowmeter in the background technology has poor calibration on gas flow and large calibration error, so that the gas flowmeter is easy to generate inaccurate gas flow measurement when in use, is inconvenient to install and detach and is inconvenient to maintain in later period.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the gas ultrasonic flowmeter with the calibration function comprises a bottom frame, wherein the top of the bottom frame is fixedly connected with a supporting plate, the top of the supporting plate is connected with a flowmeter main body through a clamping assembly, a calibration cylinder is connected between the bottom frames, and a calibration assembly is arranged in the calibration cylinder;
the calibrating assembly comprises an electric telescopic rod, a connecting rod, a piston, an air inlet pipe, a first air outlet pipe and a second air outlet pipe, wherein one side of the underframe is fixedly connected with the electric telescopic rod, the driving end of the electric telescopic rod is fixedly connected with one end of the connecting rod, the other end of the connecting rod is fixedly connected with one side of the piston, one side of the flowmeter main body is connected with the air inlet pipe with one side of the top of the calibrating cylinder, the second air outlet pipe is arranged on the other side of the flowmeter main body, and the other side of the top of the calibrating cylinder is connected with the first air outlet pipe;
the clamping assembly comprises a positioning column, clamping columns, limiting plates and rigid springs, wherein the bottoms of the two ends of the flowmeter main body are fixedly connected with the positioning columns, positioning holes are formed in the tops of the supporting plates, the clamping columns are symmetrically and movably arranged on the inner walls of the positioning holes, one ends of the clamping columns are fixedly connected with one sides of the limiting plates, and the other sides of the limiting plates are connected with the inside of the supporting plates through the rigid springs.
Preferably, the outer peripheral surface of the air inlet pipe is provided with an air inlet valve, the outer peripheral surface of the first air outlet pipe is provided with a first air outlet valve, the outer peripheral surface of the second air outlet pipe is provided with a second air outlet valve, and the first air outlet pipe is communicated with the second air outlet pipe.
Preferably, the number of the supporting plates is two, the side view cross sections of the two supporting plates are of concave arc structures, and the cross section diameter of the positioning hole is larger than that of the positioning column.
Preferably, clamping grooves are formed in two sides of the positioning column, the cross section size of each clamping groove is larger than that of each Yu Kazhu, and the two clamping grooves are symmetrically distributed in two sides of the positioning column.
Preferably, the cavity is arranged in the support plate, one end of the clamping column is movably arranged in the cavity through the limiting plate, and the clamping column slides in the cavity.
Preferably, through holes are formed in one side of the supporting plate in a penetrating mode, the number of the through holes is two, the through holes are distributed on the two supporting plates respectively, and the inner portions of the two through holes penetrate through the air inlet pipe and the first air outlet pipe respectively.
Preferably, the piston is movably arranged in the calibrating cylinder, the diameter of the cross section of the piston is matched with the inner diameter of the calibrating cylinder, and the inside of the flowmeter main body is communicated with the inside of the calibrating cylinder through an air inlet pipe.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, through the arranged calibration assembly, the flowmeter main body is connected with the calibration cylinder through the air inlet pipe, the invisible gas in the flowmeter main body is transmitted into the calibration cylinder through the opening of the air inlet valve, and the electric telescopic rod is started to drive the piston to perform piston movement in the calibration cylinder through the connecting rod, so that the invisible gas volume is converted into the movement quantity of the piston in the calibration cylinder, and is discharged through the first air outlet pipe, the calibration error of the flowmeter main body is reduced, the gas metering accuracy can be improved when the flowmeter main body is used later, the use of the flowmeter main body is facilitated, and the practicability of the flowmeter main body is improved.
2. According to the utility model, through the clamping assembly, the positioning columns arranged at the bottoms of the two ends of the flowmeter body are aligned with the positioning holes for insertion, when the positioning columns are inserted, the positioning holes apply extrusion force to the clamping columns, force is transmitted to the rigid springs through the clamping columns, so that the rigid springs are stressed to shrink in the cavity, when the positioning columns are completely inserted into the positioning holes, the clamping columns are ejected out through the restoring force of the rigid springs and accurately enter the clamping grooves, and the flowmeter body is fixed on the supporting plate through the clamping of the positioning columns and the clamping columns, so that the flowmeter body can be conveniently disassembled and assembled, the later-stage flowmeter body maintenance is facilitated, and the operation is simple and convenient.
Drawings
FIG. 1 is a schematic perspective view of a gas ultrasonic flowmeter with calibration function according to the present utility model;
FIG. 2 is a schematic diagram of a front view and inner cross-section of a gas ultrasonic flow meter with calibration function according to the present utility model;
FIG. 3 is a schematic view of a partial perspective view of a gas ultrasonic flow meter with calibration according to the present utility model;
fig. 4 is an enlarged schematic view of the gas ultrasonic flowmeter with calibration function at a position a in fig. 2 according to the present utility model.
In the figure: 1. a chassis; 2. a support plate; 3. a flowmeter body; 4. a calibration cylinder; 5. an electric telescopic rod; 6. a connecting rod; 7. a piston; 8. an air inlet pipe; 9. an intake valve; 10. a first air outlet pipe; 11. a first air outlet valve; 12. a second air outlet pipe; 13. a second air outlet valve; 14. positioning columns; 15. positioning holes; 16. a clamping column; 17. a limiting plate; 18. a rigid spring; 19. a clamping groove; 20. a cavity; 21. and a through hole.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-4, the utility model discloses a gas ultrasonic flowmeter with a calibration function, which comprises an underframe 1, wherein a supporting plate 2 is fixedly connected to the top of the underframe 1, a flowmeter main body 3 is connected to the top of the supporting plate 2 through a clamping assembly, a calibration cylinder 4 is connected between the underframe 1, and a calibration assembly is arranged in the calibration cylinder 4;
the calibrating component comprises an electric telescopic rod 5, a connecting rod 6, a piston 7, an air inlet pipe 8, a first air outlet pipe 10 and a second air outlet pipe 12, wherein one side of the underframe 1 is fixedly connected with the electric telescopic rod 5, the driving end of the electric telescopic rod 5 is fixedly connected with one end of the connecting rod 6, the other end of the connecting rod 6 is fixedly connected with one side of the piston 7, one side of the flowmeter main body 3 is connected with the air inlet pipe 8 on one side of the top of the calibrating cylinder 4, the second air outlet pipe 12 is arranged on the other side of the flowmeter main body 3, and the other side of the top of the calibrating cylinder 4 is connected with the first air outlet pipe 10;
the clamping assembly comprises a positioning column 14, a clamping column 16, a limiting plate 17 and a rigid spring 18, wherein the bottoms of the two ends of the flowmeter main body 3 are fixedly connected with the positioning column 14, a positioning hole 15 is formed in the top of the supporting plate 2, the clamping column 16 is symmetrically and movably arranged on the inner wall of the positioning hole 15, one end of the clamping column 16 is fixedly connected with one side of the limiting plate 17, and the other side of the limiting plate 17 is connected with the inside of the supporting plate 2 through the rigid spring 18.
The outer peripheral surface of the air inlet pipe 8 is provided with an air inlet valve 9, the outer peripheral surface of the first air outlet pipe 10 is provided with a first air outlet valve 11, the outer peripheral surface of the second air outlet pipe 12 is provided with a second air outlet valve 13, and the first air outlet pipe 10 is communicated with the second air outlet pipe 12.
The number of the supporting plates 2 is two, the side view cross sections of the two supporting plates 2 are of concave arc structures, and the cross section diameter of the positioning hole 15 is larger than that of the positioning column 14, so that the flowmeter main body 3 can be placed and installed conveniently.
Clamping grooves 19 are formed in two sides of the positioning column 14, the cross section size of the clamping grooves 19 is larger than that of the Yu Kazhu cross section size of the clamping grooves 19, the two clamping grooves 19 are symmetrically distributed on two sides of the positioning column 14, and the clamping columns 16 enter the clamping grooves 19 to clamp the positioning column 14.
The cavity 20 has been seted up to the inside of backup pad 2, and the one end of draw-in column 16 passes through limiting plate 17 activity to be set up in the inside of cavity 20, and slides in the inside of cavity 20, and draw-in column 16 pops out through the restoring force of stiff spring 18 to accurately get into the inside of draw-in groove 19, be fixed in on the backup pad 2 with flowmeter main part 3 through the joint of reference column 14 and draw-in column 16.
One side of the supporting plate 2 is provided with through holes 21 in a penetrating way, the number of the through holes 21 is two, the through holes 21 are respectively distributed on the two supporting plates 2, and the interiors of the two through holes 21 respectively penetrate through the air inlet pipe 8 and the first air outlet pipe 10.
The piston 7 is movably arranged in the calibrating cylinder 4, the cross section diameter of the piston 7 is matched with the inner diameter of the calibrating cylinder 4, and the inside of the flowmeter main body 3 is communicated with the inside of the calibrating cylinder 4 through an air inlet pipe 8.
The working principle of the utility model is as follows: when the flowmeter is used, firstly, the positioning columns 14 arranged at the bottoms of the two ends of the flowmeter main body 3 are aligned with the positioning holes 15, when the flowmeter main body is inserted, the positioning holes 15 apply extrusion force to the clamping columns 16, the force is transmitted to the rigid springs 18 through the clamping columns 16, the rigid springs 18 are stressed to shrink in the cavity 20, when the positioning columns 14 are completely inserted into the positioning holes 15, the clamping columns 16 pop out through the restoring force of the rigid springs 18 and accurately enter the inside of the clamping grooves 19, the flowmeter main body 3 is fixed on the supporting plate 2 through the clamping connection of the positioning columns 14 and the clamping columns 16, the flowmeter main body 3 can be conveniently disassembled and assembled, the later flowmeter main body 3 is convenient to maintain, the operation is simple and convenient, the first air outlet valve 11 is closed, a certain volume of air is sucked into the inside of the calibrating cylinder 4, the electric telescopic rod 5 is driven to do piston motion in the inside the calibrating cylinder 4 through the connecting rod 6, the intangible air volume is converted into the movement quantity of the piston 7 in the calibrating cylinder 4, and the movement quantity of the first air outlet pipe 10 is discharged, the calibrating error of the flowmeter main body 3 is enabled to be small, the flowmeter main body 3 can be conveniently used, and the practicability of the flowmeter main body 3 can be improved when the flowmeter main body 3 is convenient to use.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. A gas ultrasonic flowmeter with calibration function, characterized in that: the device comprises an underframe (1), wherein a supporting plate (2) is fixedly connected to the top of the underframe (1), a flowmeter main body (3) is connected to the top of the supporting plate (2) through a clamping assembly, a calibration cylinder (4) is connected between the underframe (1), and a calibration assembly is arranged in the calibration cylinder (4);
the calibrating assembly comprises an electric telescopic rod (5), a connecting rod (6), a piston (7), an air inlet pipe (8), a first air outlet pipe (10) and a second air outlet pipe (12), wherein one side of the underframe (1) is fixedly connected with the electric telescopic rod (5), the driving end of the electric telescopic rod (5) is fixedly connected with one end of the connecting rod (6), the other end of the connecting rod (6) is fixedly connected with one side of the piston (7), one side of the flowmeter main body (3) is connected with the air inlet pipe (8) with one side of the top of the calibrating cylinder (4), the second air outlet pipe (12) is arranged on the other side of the flowmeter main body (3), and the first air outlet pipe (10) is connected with the other side of the top of the calibrating cylinder (4);
the clamping assembly comprises a positioning column (14), clamping columns (16), limiting plates (17) and rigid springs (18), wherein the positioning columns (14) are fixedly connected to the bottoms of the two ends of the flowmeter main body (3), positioning holes (15) are formed in the tops of the supporting plates (2), the clamping columns (16) are symmetrically and movably arranged on the inner walls of the positioning holes (15), one ends of the clamping columns (16) are fixedly connected with one sides of the limiting plates (17), and the other sides of the limiting plates (17) are connected with the inside of the supporting plates (2) through the rigid springs (18).
2. The ultrasonic gas flowmeter with calibration function of claim 1, wherein: the outer peripheral surface of intake pipe (8) is equipped with admission valve (9), the outer peripheral surface of first outlet duct (10) is equipped with first air outlet valve (11), the outer peripheral surface of second outlet duct (12) is equipped with second air outlet valve (13), first outlet duct (10) are linked together with second outlet duct (12).
3. The ultrasonic gas flowmeter with calibration function of claim 1, wherein: the number of the supporting plates (2) is two, the side view cross sections of the two supporting plates (2) are of concave arc structures, and the cross section diameter of the positioning hole (15) is larger than that of the positioning column (14).
4. The ultrasonic gas flowmeter with calibration function of claim 1, wherein: clamping grooves (19) are formed in two sides of the positioning column (14), the cross section size of each clamping groove (19) is larger than that of each Yu Kazhu (16), and the two clamping grooves (19) are symmetrically distributed in two sides of the positioning column (14).
5. The ultrasonic gas flowmeter with calibration function of claim 1, wherein: the inside of backup pad (2) has offered cavity (20), the one end of card post (16) is through limiting plate (17) activity setting in the inside of cavity (20), and slides in the inside of cavity (20).
6. The ultrasonic gas flowmeter with calibration function of claim 1, wherein: one side of the supporting plate (2) is provided with two through holes (21) in a penetrating mode, the two through holes (21) are distributed on the two supporting plates (2) respectively, and the interiors of the two through holes (21) penetrate through the air inlet pipe (8) and the first air outlet pipe (10) respectively.
7. The ultrasonic gas flowmeter with calibration function of claim 1, wherein: the piston (7) is movably arranged in the calibrating cylinder (4), the diameter of the cross section of the piston (7) is matched with the inner diameter of the calibrating cylinder (4), and the inside of the flowmeter main body (3) is communicated with the inside of the calibrating cylinder (4) through an air inlet pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221714615.7U CN218916438U (en) | 2022-07-05 | 2022-07-05 | Gas ultrasonic flowmeter with calibration function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221714615.7U CN218916438U (en) | 2022-07-05 | 2022-07-05 | Gas ultrasonic flowmeter with calibration function |
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| Publication Number | Publication Date |
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| CN218916438U true CN218916438U (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221714615.7U Active CN218916438U (en) | 2022-07-05 | 2022-07-05 | Gas ultrasonic flowmeter with calibration function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990167A (en) * | 2024-04-07 | 2024-05-07 | 管控环境技术(山东)有限公司 | Gas flow measuring device and method |
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2022
- 2022-07-05 CN CN202221714615.7U patent/CN218916438U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990167A (en) * | 2024-04-07 | 2024-05-07 | 管控环境技术(山东)有限公司 | Gas flow measuring device and method |
| CN117990167B (en) * | 2024-04-07 | 2024-06-14 | 管控环境技术(山东)有限公司 | Gas flow measuring device and method |
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