CN220380557U - Variable-area critical flow flowmeter - Google Patents
Variable-area critical flow flowmeter Download PDFInfo
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- CN220380557U CN220380557U CN202321732546.7U CN202321732546U CN220380557U CN 220380557 U CN220380557 U CN 220380557U CN 202321732546 U CN202321732546 U CN 202321732546U CN 220380557 U CN220380557 U CN 220380557U
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- fixedly connected
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The utility model discloses a variable-area critical flow flowmeter, which belongs to the technical field of flowmeters and comprises a gas input shell, wherein a nozzle is arranged at one end of the gas input shell in a penetrating way, a gas output shell is inserted at the other end of the nozzle, a sealing assembly is arranged on the surface of the gas input shell and the surface of the gas output shell, the sealing assembly comprises two inclined rings, two connecting rings, two sealing gaskets and a plurality of bolts, a throttling assembly is fixedly connected with the inner walls of the gas input shell and the gas output shell, and the throttling assembly comprises a supporting seat, a rack, a trapezoidal sliding rail, a throttling body connecting rod, a displacement sensor and a fixed ring.
Description
Technical Field
The utility model relates to the technical field of flowmeters, in particular to a variable-area critical flow flowmeter.
Background
Flow is an important parameter in modern life production, and most of industrial production processes, scientific experiments and various economic accounting are related to flow. The flow metering technology has been rapidly developed since the 20 th century due to the traction of the flow metering demands in the application fields of energy metering, environmental protection, transportation and the like. The critical flow venturi nozzle has good flow metering stability and simple and reliable principle, so that the critical flow venturi nozzle is widely applied as a flow control instrument or a standard meter in a standard device.
When the conventional critical flow nozzle is used, the nozzles are required to be designed into different sizes, and in addition, the flow rate is changed only to change the upstream pressure, increase the number of the nozzles in parallel or change the nozzles, so that the critical flow nozzle cannot be realized in industrial application, and the popularization and the application of the critical flow nozzle are greatly limited.
Disclosure of Invention
(1) Technical problem to be solved
Aiming at the defects in the prior art, the utility model aims to provide a variable area critical flow flowmeter which has the characteristic of being convenient for adjusting the size and pressure of a nozzle.
(2) Technical proposal
In order to achieve the above purpose, the utility model provides a variable area critical flow flowmeter, which comprises a gas input shell, wherein a nozzle is arranged at one end of the gas input shell in a penetrating way, a gas output shell is inserted at the other end of the nozzle, a sealing assembly is arranged on the surface of the gas input shell and the surface of the gas output shell, the sealing assembly comprises two inclined rings, two connecting rings, two sealing gaskets and a plurality of bolts, a throttling assembly is fixedly connected with the inner walls of the gas input shell and the gas output shell, the throttling assembly comprises a supporting seat, a rack, a trapezoidal sliding rail, a throttling body connecting rod, a displacement sensor and a fixed ring, and a transmission assembly is fixedly connected with the surface of the gas output shell and comprises a motor seat and a servo motor.
By means of the variable-area critical flow flowmeter, the throttling assembly is arranged, so that the rack drives the throttling body to move, the position between the throttling body and the nozzle is adjusted, the diameter and the pressure of the nozzle are adjusted under the action of the shape of the throttling body, and the displacement size of the throttling body is detected under the action of the displacement sensor, so that the throttling body is accurately displaced.
Further, two the inclined ring is fixed connection respectively in gas input casing and gas output casing one end, two the go-between all overlap joint is on two inclined ring surfaces, two the sealed pad all sets up between two inclined ring and two go-between, two the go-between is all through a plurality of bolt fixed connection.
Further, supporting seat fixed connection is at gas output shells inner wall, rack and trapezoidal slide rail sliding connection are at the supporting seat surface, trapezoidal slide rail fixed connection is at the rack lower surface, throttle body fixed connection is in rack one end, connecting rod fixed connection is at the throttle body other end, displacement sensor fixed connection is at the connecting rod other end, solid fixed ring fixed connection is at gas input shells inner wall, displacement sensor sliding connection is at solid fixed ring inner wall.
Further, motor cabinet fixed connection is on gas output casing surface, servo motor fixed connection is on motor cabinet upper surface, servo motor output shaft one end fixedly connected with pivot, the pivot passes through the bearing and rotates to be connected on gas output casing surface and supporting seat surface, pivot other end fixedly connected with gear, the gear meshes with the rack mutually.
Further, the surface of the gas input shell is fixedly connected with a first pressure sensor, and the surface of the gas output shell is fixedly connected with a second pressure sensor.
Further, the other ends of the gas input shell and the gas output shell are respectively provided with a flange ring in a penetrating way.
(3) Advantageous effects
In summary, the utility model has the following beneficial effects:
1. according to the variable-area critical flow flowmeter, the throttling assembly is arranged, so that the rack drives the throttling body to move, the position between the throttling body and the nozzle is adjusted, the diameter and the pressure of the nozzle are adjusted under the action of the shape of the throttling body, and the displacement size of the throttling body is detected under the action of the displacement sensor, so that the throttling body is accurately displaced;
2. this variable area critical flow flowmeter is through setting up seal assembly, under the effect of two inclined rings and two go-between to improve the leakproofness between gas input casing and the gas input casing, through setting up drive assembly, thereby make the gear drive rack at supporting seat surface slip, through setting up first pressure sensor and second pressure sensor, thereby detect pressure, and calculate the flow.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the description of the embodiments or the prior art will be briefly described, and it is apparent that the drawings in the following description are only one embodiment of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a front cross-sectional structure of the present utility model;
FIG. 2 is a schematic view of a bottom cross-sectional structure of the present utility model;
fig. 3 is a schematic rear view of the present utility model.
The marks in the drawings are:
1. a gas input housing;
2. a nozzle;
3. a gas output housing;
4. a seal assembly; 401. an inclined ring; 402. a connecting ring; 403. a sealing gasket; 404. a bolt;
5. a throttle assembly; 501. a support base; 502. a rack; 503. a trapezoidal slide rail; 504. a throttle body; 505. a connecting rod; 506. a displacement sensor; 507. a fixing ring;
6. a transmission assembly; 601. a motor base; 602. a servo motor; 603. a rotating shaft; 604. a gear;
7. a first pressure sensor;
8. a second pressure sensor;
9. and a flange ring.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the technical solutions in the embodiments of the present utility model are clearly and completely described below to further illustrate the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all versions.
Examples:
the utility model is described in further detail below with reference to fig. 1-3.
Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a variable area critical flow flowmeter, including gas input casing 1, gas input casing 1 one end wears to be equipped with nozzle 2, nozzle 2 other end grafting has gas output casing 3, gas input casing 1 and gas output casing 3 surface are provided with seal assembly 4, seal assembly 4 includes two inclined ring 401, two go-between 402, two sealing pads 403 and a plurality of bolt 404, gas input casing 1 and gas output casing 3 inner wall fixedly connected with throttle subassembly 5, throttle subassembly 5 includes supporting seat 501, rack 502, trapezoidal slide rail 503, throttle body 504 connecting rod 505, displacement sensor 506 and solid fixed ring 507, gas output casing 3 surface fixedly connected with drive assembly 6, drive assembly 6 includes motor cabinet 601 and servo motor 602, through setting up throttle subassembly 5, thereby make rack 502 drive throttle body 504 remove, adjust the position between throttle body 504 and the nozzle 2, under the effect of throttle body 504 shape, thereby adjust the diameter and the pressure of nozzle 2, thereby detect the displacement size of throttle body 504, make throttle body 504 accurate displacement.
Specifically, two inclined rings 401 are respectively and fixedly connected to one end of the gas input housing 1 and one end of the gas output housing 3, two connecting rings 402 are respectively and fixedly connected to the surfaces of the two inclined rings 401, two sealing gaskets 403 are respectively arranged between the two inclined rings 401 and the two connecting rings 402, and the two connecting rings 402 are respectively and fixedly connected through a plurality of bolts 404.
By adopting the technical scheme, through setting up the inclined ring 401, under the cooperation of two inclined rings 401 and two go-between 402 to improve the leakproofness between gas input housing 1 and the gas input housing 1.
Specifically, the supporting seat 501 is fixedly connected to the inner wall of the gas output housing 3, the rack 502 and the trapezoidal sliding rail 503 are slidably connected to the surface of the supporting seat 501, the trapezoidal sliding rail 503 is fixedly connected to the lower surface of the rack 502, the throttle body 504 is fixedly connected to one end of the rack 502, the connecting rod 505 is fixedly connected to the other end of the throttle body 504, the displacement sensor 506 is fixedly connected to the other end of the connecting rod 505, the fixing ring 507 is fixedly connected to the inner wall of the gas input housing 1, and the displacement sensor 506 is slidably connected to the inner wall of the fixing ring 507.
By adopting the above technical scheme, through setting up throttle body 504, make rack 502 and trapezoidal slide rail 503 slide on the supporting seat 501 surface to drive throttle body 504 and remove, adjust the position between throttle body 504 and the nozzle 2, under the effect of throttle body 504 shape, thereby adjust diameter and the pressure of nozzle 2, under the effect of displacement sensor 506, thereby detect the displacement size of throttle body 504, make throttle body 504 accurate displacement.
Specifically, motor cabinet 601 fixed connection is at gas output casing 3 surface, and servo motor 602 fixed connection is at motor cabinet 601 upper surface, and servo motor 602 output shaft one end fixedly connected with pivot 603, pivot 603 pass through the bearing and rotate to be connected at gas output casing 3 surface and supporting seat 501 surface, and pivot 603 other end fixedly connected with gear 604, gear 604 meshes with rack 502.
Through adopting above-mentioned technical scheme, work through servo motor 602 to make pivot 603 drive gear 604 rotation, thereby drive rack 502 and slide on the supporting seat 501 surface.
Specifically, the first pressure sensor 7 is fixedly connected with the surface of the gas input shell 1, the second pressure sensor 8 is fixedly connected with the surface of the gas output shell 3, and the flange ring 9 is arranged at the other ends of the gas input shell 1 and the gas output shell 3 in a penetrating manner.
By adopting the above technical scheme, the pressure is detected and the flow is calculated by providing the first pressure sensor 7 and the second pressure sensor 8.
The working principle of the utility model is as follows: when the device is used, the gas output shell 3 is inserted into the surface of the nozzle 2, then the two connecting rings 402 are lapped on the surfaces of the two inclined rings 401, under the action of the bolts 404, the two connecting rings 402 are fixedly connected, then the flowmeter is arranged on a pipeline through the flange ring 9, the servo motor 602 works, the rotating shaft 603 drives the gear 604 to rotate, the rack 502 is driven to slide on the surface of the supporting seat 501, the throttle body 504 is driven to move, the position between the throttle body 504 and the nozzle 2 is regulated, the diameter and the pressure of the nozzle 2 are regulated under the action of the shape of the throttle body 504, the displacement size of the throttle body 504 is detected under the action of the displacement sensor 506, the pressure is detected and the flow is calculated under the action of the first pressure sensor 7 and the second pressure sensor 8.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Claims (6)
1. A variable area critical flow flowmeter comprising a gas input housing (1), characterized in that: the utility model provides a gas input casing (1) one end wears to be equipped with nozzle (2), nozzle (2) other end grafting has gas output casing (3), gas input casing (1) and gas output casing (3) surface are provided with seal assembly (4), seal assembly (4) are including two inclined ring (401), two go-between (402), two sealed pad (403) and a plurality of bolt (404), gas input casing (1) and gas output casing (3) inner wall fixedly connected with choke subassembly (5), choke subassembly (5) include supporting seat (501), rack (502), trapezoidal slide rail (503), choke body (504) connecting rod (505), displacement sensor (506) and solid fixed ring (507), gas output casing (3) surface fixedly connected with drive assembly (6), drive assembly (6) include motor cabinet (601) and servo motor (602).
2. A variable area critical flow meter as claimed in claim 1 wherein: two inclined rings (401) are fixedly connected to one end of a gas input shell (1) and one end of a gas output shell (3) respectively, two connecting rings (402) are lapped on the surfaces of the two inclined rings (401), two sealing gaskets (403) are arranged between the two inclined rings (401) and the two connecting rings (402), and the two connecting rings (402) are fixedly connected through a plurality of bolts (404).
3. A variable area critical flow meter as claimed in claim 1 wherein: the gas output device comprises a support seat (501), a rack (502) and a trapezoidal sliding rail (503), wherein the support seat (501) is fixedly connected to the inner wall of a gas output shell (3), the rack (502) and the trapezoidal sliding rail (503) are slidably connected to the surface of the support seat (501), the trapezoidal sliding rail (503) is fixedly connected to the lower surface of the rack (502), a throttle body (504) is fixedly connected to one end of the rack (502), a connecting rod (505) is fixedly connected to the other end of the throttle body (504), a displacement sensor (506) is fixedly connected to the other end of the connecting rod (505), a fixed ring (507) is fixedly connected to the inner wall of the gas input shell (1), and the displacement sensor (506) is slidably connected to the inner wall of the fixed ring (507).
4. A variable area critical flow meter as claimed in claim 1 wherein: the motor cabinet (601) fixed connection is on gas output casing (3) surface, servo motor (602) fixed connection is on motor cabinet (601) upper surface, servo motor (602) output shaft one end fixedly connected with pivot (603), pivot (603) are rotated through the bearing and are connected on gas output casing (3) surface and supporting seat (501) surface, pivot (603) other end fixedly connected with gear (604), gear (604) meshes with rack (502).
5. A variable area critical flow meter as claimed in claim 1 wherein: the surface of the gas input shell (1) is fixedly connected with a first pressure sensor (7), and the surface of the gas output shell (3) is fixedly connected with a second pressure sensor (8).
6. A variable area critical flow meter as claimed in claim 1 wherein: the other ends of the gas input shell (1) and the gas output shell (3) are respectively provided with a flange ring (9) in a penetrating way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321732546.7U CN220380557U (en) | 2023-07-04 | 2023-07-04 | Variable-area critical flow flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321732546.7U CN220380557U (en) | 2023-07-04 | 2023-07-04 | Variable-area critical flow flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220380557U true CN220380557U (en) | 2024-01-23 |
Family
ID=89560690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321732546.7U Active CN220380557U (en) | 2023-07-04 | 2023-07-04 | Variable-area critical flow flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220380557U (en) |
-
2023
- 2023-07-04 CN CN202321732546.7U patent/CN220380557U/en active Active
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