CN210071008U - Precession vortex gas flowmeter - Google Patents
Precession vortex gas flowmeter Download PDFInfo
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- CN210071008U CN210071008U CN201921335781.4U CN201921335781U CN210071008U CN 210071008 U CN210071008 U CN 210071008U CN 201921335781 U CN201921335781 U CN 201921335781U CN 210071008 U CN210071008 U CN 210071008U
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Abstract
The utility model provides a precession swirl gas flowmeter, which comprises a housin, inside shrink section and the diffuser that divide into of casing, the shrink section tip is provided with the vortex generating body, the diffuser tip is provided with the rectifier, be provided with flow sensor on the casing outer wall respectively, a pressure sensor, temperature sensor and flow totalizer, the casing is located the first ring flange of tip fixedly connected with of vortex generating body, the casing is located the tip fixedly connected with second ring flange of rectifier, be provided with the toper cover between shrink section inner wall and the vortex generating body, the helical blade outer wall of vortex generating body is along a plurality of first spacing separation blades of the even interval fixedly connected with of circumferencial direction, be provided with the installation cover between diffuser inner wall and the rectifier, the rectifier outer wall is fixed along its the spacing separation blade of length direction fixedly connected with second. The utility model discloses simple structure, job stabilization, measurement accuracy height.
Description
Technical Field
The utility model belongs to the technical field of gas flowmeter, especially, relate to a precession vortex gas flowmeter.
Background
The precession vortex gas flowmeter is an accessory device widely applied to industries of petroleum, chemical engineering, electric power, metallurgy, urban gas supply and the like for measuring various gas flows, and is widely used in the field of flow detection. When the traditional precession vortex gas flowmeter is used, the vortex generating body and the rectifying body are easy to loosen under the action of a transmission medium, so that the measurement accuracy of the vortex generating body and the rectifying body is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a precession vortex gas flowmeter that simple structure, job stabilization, measurement accuracy are high.
In order to solve the technical problem, the utility model adopts the following technical scheme: a precession vortex gas flowmeter comprises a shell, the interior of the shell is divided into a contraction section and a diffusion section, the end part of the contraction section is provided with a vortex generating body, the end part of the diffusion section is provided with a rectifier, the outer wall of the shell is respectively provided with a flow sensor, a pressure sensor, a temperature sensor and a flow integrating instrument, the end part of the shell, which is positioned on the vortex generating body, is fixedly connected with a first flange, the end part of the shell, which is positioned on the rectifier, is fixedly connected with a second flange, a conical sleeve is arranged between the inner wall of the contraction section and the vortex generating body, the conical sleeve is inserted into the contraction section along the axial direction, the outer wall of the end part of the conical sleeve is in threaded connection with the first flange, the outer wall of a helical blade of the vortex generating body is fixedly connected with a plurality of first limiting baffle plates at uniform intervals along the circumferential direction, the inner wall, the installing sleeve is inserted into the diffusion section along the axial direction, the outer wall of the end part of the installing sleeve is in threaded connection with the second flange plate, the outer wall of the rectifier body is fixedly connected with a second limiting baffle along the length direction, and a second limiting groove matched with the second limiting baffle is formed in the inner wall of the installing sleeve.
The first flange plate is internally threaded with a first locking gland, and the first locking gland is in press fit with the top of the end part of the conical sleeve.
And the second flange plate is internally threaded with a second locking gland, and the second locking gland is in top pressing fit with the end part of the mounting sleeve.
And sealing rings are respectively arranged between the first locking gland and the conical sleeve and between the second locking gland and the mounting sleeve.
The utility model discloses when using, after the fluid passes through the vortex generating body, the fluid is forced to form the swirl round the violent rotation of vortex generating body, and make vortex flow accelerate at the contraction section, after vortex flow gets into the diffuser, because of the effect of backward flow forces precession formula secondary rotation, vortex flow's rotational frequency and medium flow rate are directly proportional this moment, the weak charge signal that pressure sensor detected is enlargied through preamplifier, the filtering, the plastic, become frequency and the directly proportional pulse signal of velocity of flow after the comparison, the microprocessor of sending flow totalizer at last carries out the count and handles, microprocessor obtains vortex flow's rotational frequency according to this count value, and obtain the gas flow rate according to the linear relation of frequency and velocity of flow, obtain the gas flow value through further calculation afterwards.
Adopt above-mentioned technical scheme, the utility model discloses a taper sleeve carries on spacingly to whirlpool generating body, whirlpool generating body is through the cooperation of first spacing separation blade and first spacing groove, install whirlpool generating body in the taper sleeve, taper sleeve tip threaded connection is in first ring flange, and adopt first locking to press the lid to lock, carry on spacingly to whole fluid through the installation sleeve, the cooperation of rectifying body through second spacing separation blade and second spacing groove, install the rectifying body in the installation sleeve, installation sleeve tip threaded connection is in the second ring flange, and adopt second locking gland to lock, adopt above-mentioned structure, realized the fixed of whirlpool generating body and rectifying body, greatly reduced the wearing and tearing of whirlpool generating body and rectifying body simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
fig. 3 is a sectional view taken along line B-B in fig. 1.
Detailed Description
As shown in fig. 1-3, the precession vortex gas flowmeter of the present invention comprises a casing 1, the casing 1 is internally divided into a contraction section 2 and a diffusion section 3, the contraction section 2 is set to be a conical structure, the diameter of the contraction section 2 is sequentially reduced along the medium transmission direction, the vortex generating body 4 is disposed at the end of the contraction section 2, the rectifying body 5 is disposed at the end of the diffusion section 3, the outer wall of the casing 1 is respectively provided with a flow sensor 6, a pressure sensor 7, a temperature sensor 8 and a flow integrating instrument 9, the flow sensor 6, the pressure sensor 7 and the temperature sensor 8 are respectively electrically connected with the flow integrating instrument 9, the end of the casing 1 located at the vortex generating body 4 is fixedly connected with a first flange 10, the end of the casing 1 located at the rectifying body 5 is fixedly connected with a second flange 11, a conical sleeve 12 is disposed between the inner wall of the contraction section 2, the cone sleeve 12 is inserted into the contraction section 2 along the axial direction, a first step-shaped thread groove is arranged in the first flange plate 10, the outer wall of the end part of the cone sleeve 12 is in threaded connection with the first flange plate 10, the outer wall of the helical blade of the vortex generating body 4 is fixedly connected with a plurality of first limit baffle sheets 13 at even intervals along the circumferential direction, the inner wall of the cone sleeve 12 is provided with a first limit groove matched with each first limit baffle sheet 13, each first limit baffle sheet 13 is correspondingly and slidably connected in the first limit groove, an installation sleeve 14 is arranged between the inner wall of the diffusion section 3 and the rectifying body 5, the installation sleeve 14 is inserted into the diffusion section 3 along the axial direction, a second step-shaped thread groove is arranged in the second flange plate 11, the outer wall of the end part of the installation sleeve 14 is in threaded connection with the second flange plate 11, the outer wall of the rectifying body 5 is fixedly connected with a second limit baffle sheet 15 along the length direction, the inner, the second limiting blocking piece 15 is correspondingly connected in the second limiting groove in a sliding mode.
The first flange plate 10 is internally threaded with a first locking gland 16, and the first locking gland 16 is in abutting fit with the end of the conical sleeve 12.
The second flange plate 11 is internally threaded with a second locking gland 17, and the second locking gland 17 is in abutting fit with the end of the mounting sleeve 14.
And sealing rings are respectively arranged between the first locking gland 16 and the conical sleeve 12 and between the second locking gland 17 and the mounting sleeve 14. The sealing rings are not shown in the figure.
The utility model discloses a 12 vortex generators 4 that revolve of taper sleeve carry on spacingly, vortex generators 4 is through the cooperation of first spacing separation blade 13 with first spacing groove, install vortex generators 4 in taper sleeve 12, 12 end screw thread connections of taper sleeve are in first ring flange 10, and adopt first locking gland 16 to lock, it is spacing to carry out whole fluid 5 through installation sleeve 14, rectifier 5 is through the cooperation of second spacing separation blade 15 with the second spacing groove, install rectifier 5 in installation sleeve 14, 14 end screw thread connections of installation sleeve are in second ring flange 11, and adopt second locking gland 17 to lock, adopt above-mentioned structure, realized vortex generators 4 and rectifier 5's fixed soon, greatly reduced vortex generators 4 and rectifier 5's wearing and tearing simultaneously.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (4)
1. The utility model provides a precession swirl gas flowmeter, includes the casing, and casing inside is divided into contraction section and diffuser, and contraction section tip is provided with the vortex generating body, and the diffuser tip is provided with the rectifier, is provided with flow sensor, pressure sensor, temperature sensor and flow totalizer on the casing outer wall respectively, its characterized in that: the casing is located the first ring flange of tip fixedly connected with of vortex body, the casing is located the tip fixedly connected with second ring flange of fairing, be provided with the taper sleeve between contraction section inner wall and the vortex body, the taper sleeve inserts the contraction section along the axial, taper sleeve tip outer wall threaded connection is in first ring flange, the helical blade outer wall of vortex body is along the even interval fixedly connected with a plurality of first spacing separation blades of circumferencial direction, the taper sleeve inner wall is seted up the first spacing groove with each first spacing separation blade looks adaptation, be provided with the installation cover between diffuser inner wall and the fairing, the installation cover inserts the diffuser along the axial, installation cover tip outer wall threaded connection is in the second ring flange, the fairing outer wall is fixed along its length direction fixedly connected with second spacing separation blade, the second spacing groove with second spacing separation blade looks adaptation is seted up to the installation cover inner wall.
2. A precession vortex gas flowmeter according to claim 1 wherein: the first flange plate is internally threaded with a first locking gland, and the first locking gland is in press fit with the top of the end part of the conical sleeve.
3. A precession vortex gas flowmeter according to claim 2 wherein: and the second flange plate is internally threaded with a second locking gland, and the second locking gland is in top pressing fit with the end part of the mounting sleeve.
4. A precession vortex gas flowmeter according to claim 3 wherein: and sealing rings are respectively arranged between the first locking gland and the conical sleeve and between the second locking gland and the mounting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921335781.4U CN210071008U (en) | 2019-08-17 | 2019-08-17 | Precession vortex gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921335781.4U CN210071008U (en) | 2019-08-17 | 2019-08-17 | Precession vortex gas flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210071008U true CN210071008U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921335781.4U Active CN210071008U (en) | 2019-08-17 | 2019-08-17 | Precession vortex gas flowmeter |
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| Country | Link |
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| CN (1) | CN210071008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115950491A (en) * | 2023-02-17 | 2023-04-11 | 承德热河克罗尼仪表有限公司 | Precession vortex flowmeter |
-
2019
- 2019-08-17 CN CN201921335781.4U patent/CN210071008U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115950491A (en) * | 2023-02-17 | 2023-04-11 | 承德热河克罗尼仪表有限公司 | Precession vortex flowmeter |
| CN115950491B (en) * | 2023-02-17 | 2023-08-22 | 承德热河克罗尼仪表有限公司 | Precession vortex flowmeter |
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