CN215573130U - Precession vortex flowmeter capable of measuring mixed gas - Google Patents
Precession vortex flowmeter capable of measuring mixed gas Download PDFInfo
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- CN215573130U CN215573130U CN202120560126.XU CN202120560126U CN215573130U CN 215573130 U CN215573130 U CN 215573130U CN 202120560126 U CN202120560126 U CN 202120560126U CN 215573130 U CN215573130 U CN 215573130U
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Abstract
The utility model discloses a precession vortex flowmeter capable of measuring mixed gas, which comprises a cylindrical outer shell; the utility model discloses a vortex flowmeter for measuring the mixed gas of a pipeline, including cylindricality shell body, location axle, sealed flange plate, jet hole and cutting board, the medial surface left end of cylindricality shell body is equipped with the deswirl ware, and the medial surface right-hand member middle part of cylindricality shell body is equipped with the location axle, and the lateral surface of location axle turns right from a left side and is equipped with the spinner, water conservancy diversion sheet metal, spiral mixing plate and spoiler in proper order, the right flank of spoiler is equipped with jet hole and cutting board, this vortex flowmeter for measuring the precession of mixed gas soon can be with the fluid misce bene in the pipeline for fluidic flow measurement can be more accurate, the dismouting of digital display gauge outfit has been made things convenient for in the setting of sealed flange plate, the cutting board combines setting of jet hole can carry out even mixture to the fluid in the pipeline from the vortex in the area, can carry out even mixture to the fluid in the pipeline through spiral mixing plate, can carry out the rectification to the fluid after the mixing through the water conservancy diversion sheet metal, make it can be along the removal at the uniform velocity of the inner wall of pipeline.
Description
Technical Field
The utility model relates to the technical field of precession vortex flowmeters, in particular to a precession vortex flowmeter capable of measuring mixed gas.
Background
The flow cross section of the flow sensor in the precession vortex flowmeter is similar to the molded line of a Venturi tube, and a group of spiral guide vanes are arranged on the inlet side. When fluid enters the flow sensor, the guide vanes force the fluid to generate violent swirling flow; when the fluid enters the diffusion section, the vortex flow starts to rotate for the second time under the action of backflow, and a gyro type vortex precession phenomenon is formed. The precession frequency is in direct proportion to the flow rate, and is not influenced by the physical properties and density of the fluid, and the detection element can obtain good linearity in a wider flow rate range by detecting the secondary rotation precession frequency of the fluid. The signal is amplified, filtered and shaped by a preamplifier to be converted into a pulse signal which is in direct proportion to the flow speed, and then the pulse signal and detection signals of temperature, pressure and the like are sent to a microprocessor for integration processing, and a measurement result is displayed on a liquid crystal display screen.
The measurement of the flow of the mixed gas is always a measurement and control difficulty, and the main reason is that the mixed gas is not uniformly mixed when flowing in the pipeline, and when the mixed gas flows through the guide vanes, the guide vanes force the mixed gas to generate violent swirling flow; when the mixed gas enters the diffusion section, the vortex flows are subjected to the action of backflow, secondary rotation is started, the precession frequency of a gyro type vortex precession phenomenon formed by secondary rotation is not stable enough due to uneven density distribution of the mixed gas, the secondary rotation precession frequency change of the mixed gas measured by the detection element is large, the flow of the mixed gas can only be estimated, and the measurement deviation is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides a precession vortex flowmeter capable of measuring mixed gas, which can uniformly mix fluid in a pipeline, enables the flow measurement of the fluid to be more accurate, and can effectively solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a precession vortex flowmeter capable of measuring mixed gas comprises a cylindrical outer shell; the utility model discloses a cylindrical shell, including cylindricality shell body, medial surface, jet hole, spoiler, jet hole, detection element, medial surface left end, locating shaft, rotor, water conservancy diversion sheet metal, spiral mixer plate and spoiler, the lateral surface of locating shaft turns right from a left side and is equipped with spinner, water conservancy diversion sheet metal, spiral mixer plate and spoiler in proper order, the right flank of spoiler is equipped with jet hole and cutting board, the quantity of cutting board is eight, and eight evenly distributed are around the right flank of spoiler, the jet hole sets up between adjacent cutting board, and one side that the medial surface of cylindricality shell body is close to the spinner is equipped with detecting element.
Furthermore, both ends all are equipped with the mounting flange about the lateral surface of cylindricality shell body, and the lateral surface of mounting flange is equipped with mounting hole and sealing washer.
Furthermore, the cylindrical outer shell is connected with a digital display meter through a sealing flange arranged in the middle of the upper end of the outer side surface of the cylindrical outer shell.
Furthermore, the inner side surface of the cylindrical outer shell is a gradually-deformed cavity with a small middle and two wide sides.
Furthermore, the edges of the outer side surfaces of the spiral device, the flow guide thin plate, the spiral mixing plate and the spoiler are in close contact with the inner side surface of the cylindrical shell.
Furthermore, the number of the guide thin plates is not less than six, and the guide thin plates which are not less than six are uniformly distributed on the periphery of the outer side face of the positioning shaft.
Compared with the prior art, the utility model has the beneficial effects that: this precession vortex flowmeter of measurable quantity mist, can be with the fluid misce bene in the pipeline, make fluidic flow measurement can be more accurate, the setting up of sealing flange dish has made things convenient for the dismouting of digital display gauge outfit, the setting that the cutting board combines the jet orifice can carry out the breakage to the fluid in the pipeline from the vortex of taking, can carry out even mixture to the fluid in the pipeline through the spiral mixing plate, can carry out the rectification to the fluid after the mixing through the water conservancy diversion sheet metal, make its removal at the uniform velocity along the inner wall of pipeline.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
fig. 3 is a right side view of the present invention.
In the figure: the device comprises a digital display meter head 1, a cylindrical outer shell 2, an installation flange 3, a sealing flange 4, a detection element 5, a derotator 6, a derotator 7, a flow guide thin plate 8, a positioning shaft 9, a cutting plate 10, a spoiler 11, a spiral mixing plate 12 and a jet hole 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in fig. 2, only for convenience of description and simplification of description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. When a feature is referred to as being "disposed," "secured," or "connected" to another feature, it can be directly disposed, secured, or connected to the other feature or be indirectly disposed, secured, or connected to the other feature.
Referring to fig. 1-3, the present invention provides a technical solution: a precession vortex flowmeter capable of measuring mixed gas comprises a cylindrical outer shell 2; the inner side surface of the cylindrical shell body 2 is a gradually-changed cavity with a small middle and two wide sides, the left end and the right end of the outer side surface of the cylindrical shell body 2 are both provided with mounting flanges 3, the outer side surface of each mounting flange 3 is provided with a mounting hole and a sealing ring, the cylindrical shell body 2 is connected with a digital display meter head 1 through a sealing flange 4 arranged in the middle of the upper end of the outer side surface of the cylindrical shell body, the mounting and dismounting of the digital display meter head 1 are facilitated by the arrangement of the sealing flange 4, the left end of the inner side surface of the cylindrical shell body 2 is provided with a derotator 6, the middle of the right end of the inner side surface of the cylindrical shell body 2 is provided with a positioning shaft 9, the outer side surface of the positioning shaft 9 is sequentially provided with a rotator 7, a flow guide thin plate 8, a spiral mixing plate 12 and a spoiler 11 from left to right, the spiral mixing plate 12 can uniformly mix fluid in a pipeline, and the edges of the outer side surfaces of the rotator 7, the flow guide thin plate 8, the spiral mixing plate 12 and the spoiler 11 are all in close contact with the inner side surface of the cylindrical shell body 2, six are no less than to the quantity of water conservancy diversion sheet metal 8, be no less than six water conservancy diversion sheet metal 8 evenly distributed is around the lateral surface of location axle 9, can carry out the rectification to the fluid after the mixing through water conservancy diversion sheet metal 8, make it can be along the removal at the uniform velocity of the inner wall of pipeline, the right flank of spoiler 11 is equipped with jet hole 13 and cutting board 10, the quantity of cutting board 10 is eight, eight evenly distributed is around the right flank of spoiler 11, cutting board 10 combines setting up of jet hole 13 can be to the fluid in the pipeline from the vortex of taking and carrying out the breakage, jet hole 13 sets up between adjacent cutting board 10, one side that the medial surface of cylindricality shell body 2 is close to derotator 6 is equipped with detecting element 5, this precession vortex flowmeter of measurable quantity mist, can be with the fluid misce in the pipeline, make fluidic flow measurement can be more accurate.
When in use: install this device on waiting to examine the pipeline through mounting flange 3, when the fluid in the pipe fitting flows through cutting plate 10, carry out the breakage by the vortex in the cutting plate 10 fluid, fluid after the breakage enters into spiral mixing plate 12 via jet hole 13, fluid misce bene when the medial surface of spiral mixing plate 12 flows, fluid after the mixture is even for the velocity of flow after 8 commutations of water conservancy diversion sheet metal promptly, the even fluid of density.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A precession vortex flowmeter capable of measuring mixed gas is characterized in that: comprising a cylindrical outer shell (2); the utility model discloses a cylindrical shell body, including cylindricality shell body (2), medial surface, jet hole (13), cutting board (10), the lateral surface of cutting board (10), eight evenly distributed are around the right flank of spoiler (11), jet hole (13) set up between adjacent cutting board (10), and one side that the medial surface of cylindricality shell body (2) is close to derotator (6) is equipped with detecting element (5), and the medial surface left end of cylindricality shell body (2) is equipped with positioning shaft (9), and the medial surface right-hand member middle part of cylindricality shell body (2) is equipped with location axle (9), and the lateral surface of positioning shaft (9) turns right from a left side and is equipped with spinner (7), water conservancy diversion sheet metal (8), spiral mixing plate (12) and spoiler (11) in proper order, the right flank of spoiler (11) is equipped with jet hole (13) and cutting board (10), eight evenly distributed are around the right flank of spoiler (11).
2. A precession vortex flowmeter for measuring the flow of a mixture of gases as set forth in claim 1 wherein: both ends all are equipped with mounting flange dish (3) about the lateral surface of cylindricality shell body (2), and the lateral surface of mounting flange dish (3) is equipped with mounting hole and sealing washer.
3. A precession vortex flowmeter for measuring the flow of a mixture of gases as set forth in claim 1 wherein: the cylindrical outer shell (2) is connected with a digital display gauge outfit (1) through a sealing flange (4) arranged in the middle of the upper end of the outer side surface of the cylindrical outer shell.
4. A precession vortex flowmeter for measuring the flow of a mixture of gases as set forth in claim 1 wherein: the inner side surface of the cylindrical outer shell (2) is a gradually-deformed cavity with a small middle and two wide sides.
5. A precession vortex flowmeter for measuring the flow of a mixture of gases as set forth in claim 1 wherein: the edges of the outer side surfaces of the spinner (7), the flow guide thin plate (8), the spiral mixing plate (12) and the spoiler (11) are all in close contact with the inner side surface of the cylindrical outer shell (2).
6. A precession vortex flowmeter for measuring the flow of a mixture of gases as set forth in claim 1 wherein: the number of the flow guide thin plates (8) is not less than six, and the flow guide thin plates (8) which are not less than six are uniformly distributed on the periphery of the outer side surface of the positioning shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120560126.XU CN215573130U (en) | 2021-03-18 | 2021-03-18 | Precession vortex flowmeter capable of measuring mixed gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120560126.XU CN215573130U (en) | 2021-03-18 | 2021-03-18 | Precession vortex flowmeter capable of measuring mixed gas |
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| Publication Number | Publication Date |
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| CN215573130U true CN215573130U (en) | 2022-01-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116182960A (en) * | 2023-03-23 | 2023-05-30 | 福建哈德仪表有限公司 | Fluid turbine flowmeter with swirl guide body |
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2021
- 2021-03-18 CN CN202120560126.XU patent/CN215573130U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116182960A (en) * | 2023-03-23 | 2023-05-30 | 福建哈德仪表有限公司 | Fluid turbine flowmeter with swirl guide body |
| CN116182960B (en) * | 2023-03-23 | 2024-03-08 | 福建哈德仪表有限公司 | Gas turbine flowmeter with swirl guide body |
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