CN213481484U - Flowmeter calibration pressure taking device - Google Patents
Flowmeter calibration pressure taking device Download PDFInfo
- Publication number
- CN213481484U CN213481484U CN202022594478.5U CN202022594478U CN213481484U CN 213481484 U CN213481484 U CN 213481484U CN 202022594478 U CN202022594478 U CN 202022594478U CN 213481484 U CN213481484 U CN 213481484U
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure tapping
- flowmeter
- pipe
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010079 rubber tapping Methods 0.000 claims abstract description 93
- 238000007789 sealing Methods 0.000 claims abstract description 60
- 230000000903 blocking effect Effects 0.000 claims abstract description 21
- 230000009471 action Effects 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- 238000005070 sampling Methods 0.000 claims description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 230000003449 preventive effect Effects 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 4
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to the technical field of measurement, in particular to a flowmeter calibration pressure taking device, which comprises a pressure taking pipe, a sealing nut, a sealing washer and a fastener, wherein the bottom end of the pressure taking pipe is connected with a pressure taking port of a flowmeter, the inner side of the top end of the pressure taking pipe is provided with an internal thread part for being fixedly connected with a calibration instrument, and the outer side ring of the pressure taking pipe is provided with a baffle plate; the sealing nut is in threaded connection with the external thread part of the outer wall of the pressure tapping pipe and is positioned above the blocking plate; the sealing washer is positioned between the sealing nut and the blocking plate and can be in sealing connection with the inner wall of the pressure taking groove communicated with the upper part of the pressure taking port under the extrusion action of the sealing nut and the blocking plate; the fastener is connected with the pressure tapping pipe and annularly arranged on the flowmeter and used for fixing the pressure tapping pipe on the flowmeter. The pressure measuring device for calibrating the flowmeter can quickly finish the connection between the differential pressure type flowmeter and the calibrating instrument on the basis of not adopting welding or gluing, ensures the tightness and stability of the connection, improves the calibrating efficiency and reduces the cost.
Description
Technical Field
The utility model relates to a measure technical field, especially relate to a pressure device is markd to flowmeter.
Background
The differential pressure type flowmeter has the performance of high temperature and high pressure resistance, and is widely applied to the industries of chemical engineering and the like. For the measurement of high-pressure and high-temperature media, a pressure taking port of a differential pressure type flowmeter is usually designed in a socket welding mode, namely, is not provided with threads, but the calibration of the differential pressure type flowmeter is difficult. When calibration is performed, media such as water or air in a low-pressure state are used for calibration, a calibration pipeline needs to be welded or glued at a pressure tapping port of the differential pressure type flowmeter, and the other end of the calibration pipeline is connected with a calibration instrument, so that the calibration medium enters the calibration instrument for calibration. After the calibration is finished, the calibration pipeline needs to be cut off from the pressure taking port of the differential pressure type flowmeter, and meanwhile, the differential pressure type flowmeter needs to be ensured to be used as a product, and the appearance of the differential pressure type flowmeter is smooth and flat. The calibration operation process is complicated, and the delivery efficiency of the product is affected, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pressure device is markd to flowmeter can accomplish the differential pressure formula flowmeter fast and mark being connected between the instrument on the basis that does not adopt welding or splice, improves and marks efficiency, and reduce cost drops into.
To achieve the purpose, the utility model adopts the following technical proposal:
a flowmeter calibrating pressure tapping device comprises:
the bottom end of the pressure tapping pipe is connected with a pressure tapping opening of the flowmeter, an internal thread part is arranged on the inner side of the top end of the pressure tapping pipe and is used for being fixedly connected with a calibration instrument, and a stop plate is arranged on the outer side of the pressure tapping pipe in a surrounding mode;
the sealing nut is in threaded connection with the external thread part of the outer wall of the pressure tapping pipe and is positioned above the blocking plate;
the sealing gasket is positioned between the sealing nut and the blocking plate and can be in sealing connection with the inner wall of the pressure taking groove communicated with the upper part of the pressure taking opening under the extrusion action of the sealing nut and the blocking plate;
the fastening piece is connected with the pressure tapping pipe, annularly arranged on the flowmeter and used for fixing the pressure tapping pipe on the flowmeter.
Optionally, the pressure tapping device further comprises a friction washer located between the sealing nut and the sealing washer, and the friction washer is configured to be capable of abutting against the inner wall of the pressure tapping groove under the pressing action of the sealing nut and the sealing washer.
Optionally, the pressure tapping device further comprises a friction washer and a friction nut, the friction nut is located above the sealing nut and is in threaded connection with the external threaded portion, the friction washer is located between the friction nut and the sealing nut, and the friction washer is configured to be capable of abutting against the inner wall of the pressure tapping groove under the pressing action of the friction nut and the sealing nut.
Optionally, a friction part is arranged at the part of the friction washer abutting against the pressure taking groove.
Optionally, the blocking plate is integrally formed with the pressure tapping pipe.
Optionally, the outer wall of the top end of the pressure tapping pipe is polygonal.
Optionally, the inner side of the pressure tapping pipe comprises a smooth portion connected with the internal threaded portion, when the pressure tapping pipe is connected with the calibration instrument, the smooth portion is connected with the connecting pipe of the calibration instrument, and the inner diameter of the smooth portion is the same as that of the connecting pipe.
Optionally, the fastener comprises a first half ring, a second half ring and a connecting piece, one end of the first half ring and one end of the second half ring are rotatably connected with the upper end side wall of the pressure tapping pipe respectively, and the other end of the first half ring and the other end of the second half ring are locked through the connecting piece.
Optionally, the pressure tapping pipe is coated with a rust-preventive layer.
Optionally, the rust-preventive layer is a rust-preventive paint.
The utility model has the advantages that:
the utility model provides a flowmeter calibration pressure taking device, which comprises a pressure taking pipe, a sealing nut, a sealing washer and a fastener, wherein the bottom end of the pressure taking pipe is connected with a pressure taking port of a flowmeter, the inner side of the top end of the pressure taking pipe is provided with an inner thread part, the inner thread part is used for being fixedly connected with a calibration instrument, and the outer side ring of the pressure taking pipe is provided with a stop plate; the sealing nut is in threaded connection with the external thread part of the outer wall of the pressure tapping pipe and is positioned above the blocking plate; the sealing washer is positioned between the sealing nut and the blocking plate and can be in sealing connection with the inner wall of the pressure taking groove communicated with the upper part of the pressure taking port under the extrusion action of the sealing nut and the blocking plate; the fastener is connected with the pressure tapping pipe and annularly arranged on the flowmeter and used for fixing the pressure tapping pipe on the flowmeter. The pressure measuring device for calibrating the flowmeter can quickly finish the connection between the differential pressure type flowmeter and the calibrating instrument on the basis of not adopting welding or gluing, and ensures the tightness and stability of the connection, thereby improving the calibrating efficiency and reducing the cost input.
Drawings
Fig. 1 is a schematic working diagram of a calibration pressure measuring device of a flowmeter according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a view angle of a partial structure of a pressure calibrating and taking device for a flowmeter according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another view angle of a partial structure of a pressure calibrating and taking device for a flowmeter according to an embodiment of the present invention.
In the figure:
1. a pressure sampling pipe; 11. an internal thread portion; 12. a blocking plate; 13. an external threaded portion;
2. a seal nut;
3. a sealing gasket;
4. a friction washer; 41. a friction portion;
5. a friction nut;
6. a fastener; 61. a first half ring; 62. a second half ring; 63. a connecting member;
7. a flow meter; 71. a pressure taking port; 72. and (6) taking the pressure groove.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to fig. 3, the present embodiment provides a flowmeter calibration pressure tapping device, which is used to connect a pressure tapping port 71 of a flowmeter 7 and a calibration instrument, and can be used in conjunction with a calibration operation of the flowmeter 7, so that the socket welded pressure tapping port 71 can be connected with a calibration device in a sealing manner, and thus a fluid medium to be measured enters the calibration device to calibrate the flowmeter 7.
The flow meter calibrating and pressure-taking device comprises a pressure-taking pipe 1, a sealing nut 2, a sealing washer 3 and a fastener 6. The pressure tapping pipe 1 is used for communicating a pressure tapping port 71 of the flowmeter 7 with a calibration instrument, the sealing nut 2 and the sealing washer 3 are arranged on the pressure tapping pipe 1 in an encircling mode and used for sealing connection between the pressure tapping pipe 1 and the flowmeter 7, the fastening piece 6 is connected with the pressure tapping pipe 1 and arranged on the flowmeter 7 in an encircling mode and used for fixing the pressure tapping pipe 1 on the flowmeter 7.
Specifically, a cylindrical pressure tapping groove 72 is formed in the side wall of the pipeline of the flowmeter 7, the pressure tapping pipe 1 can be directly placed in the pressure tapping groove 72, a pressure tapping port 71 is formed in the center of the bottom of the pressure tapping groove 72, and the bottom end of the pressure tapping pipe 1 is communicated with the pressure tapping port 71. The calibrating instrument is connected on the top of pressure pipe 1, and the top outside of pressure pipe 1 is the polygon, and the use of being convenient for instrument presss from both sides tightly, and the top inboard of pressure pipe 1 is provided with internal thread portion 11, and internal thread portion 11 is used for with calibrating instrument fixed connection. On the interior lateral wall face of pressure pipe 1, be provided with the smooth part in the below of internal thread portion 11, internal thread portion 11 is connected with the smooth part, and the pipe diameter of internal thread portion 11 is greater than the pipe diameter of smooth part, when pressure pipe 1 connects the calibration instrument getting, the external thread joint of the connecting pipe of calibration instrument is connected with the internal thread portion 11 of pressure pipe 1 getting, and the external thread joint of the connecting pipe of calibration instrument can dock with the smooth part, and the smooth part is the same with the internal diameter of connecting pipe, the volume of awaiting measuring fluid medium gets into the in-process of the connecting pipe of calibration instrument from pressure pipe 1, just avoided because the pipe diameter nonconformity leads to the demarcation production error to the volume of measuring. The outer side of the pressure tapping pipe 1 is annularly provided with a blocking plate 12, the blocking plate 12 and the pressure tapping pipe 1 are integrally formed, so that the strength of the blocking plate 12 is improved, and the outer wall of the pressure tapping pipe 1 is further provided with an external thread part 13. The sealing nut 2 is positioned above the baffle plate 12, and the sealing nut 2 is in threaded connection with an external thread part 13 of the outer wall of the pressure sampling pipe 1. The sealing washer 3 is located between the sealing nut 2 and the blocking plate 12, when the sealing nut 2 moves close to the blocking plate 12, the sealing washer 3 can deform under the extrusion action of the sealing nut 2 and the blocking plate 12, namely, the sealing washer extends outwards along the radial direction, so that the sealing washer 3 can be in sealing connection with the inner wall of the pressure taking groove 72, the fluid medium is prevented from flowing out from the gap between the inner wall of the pressure taking groove 72 and the sealing washer 3, and the connection sealing performance of the flowmeter calibrating pressure taking device is guaranteed.
Optionally, in order to increase the stability of the pressure tapping pipe 1 in the calibration process, the pressure tapping device for calibrating the flowmeter further comprises a friction washer 4, the friction washer 4 is sleeved on the pressure tapping pipe 1, the friction washer 4 is located between the sealing nut 2 and the sealing washer 3, when the gland nut 2 moves close to the stop plate 12, the friction washer 4 can deform under the squeezing action of the gland nut 2 and the sealing washer 3, i.e., radially outwardly, so that the friction washer 4 can abut against the inner wall of the pressure taking groove 72, so that an interaction force is generated between the friction washer 4 and the inner wall of the pressure tapping groove 72, and when the pressure tapping pipe 1 is forced by an external force to tend to move up and down relative to the pressure tapping groove 72, a frictional force is generated between the friction washer 4 and the inner wall of the pressure tapping groove 72, thereby preventing the pressure tapping pipe 1 from moving and ensuring the stability of the calibration process.
Optionally, a friction washer 4 and a matching friction nut 5 may be provided at the same time, the friction washer 4 and the friction nut 5 are both sleeved on the pressure tapping pipe 1, the friction nut 5 is located above the sealing nut 2 and is in threaded connection with the external thread portion 13 of the pressure tapping pipe 1, the friction washer 4 is located between the friction nut 5 and the sealing nut 2, when the friction nut 5 moves close to the sealing nut 2, the friction washer 4 can deform under the squeezing action of the sealing nut 2 and the friction nut 5, i.e. extend radially and outwards, so that the friction washer 4 can abut against the inner wall of the pressure tapping groove 72, so as to generate an interaction force between the friction washer 4 and the inner wall of the pressure tapping groove 72, and when the pressure tapping pipe 1 has a tendency of moving up and down relative to the pressure tapping groove 72 under the action of an external force, a friction force can be generated between the friction washer 4 and the inner wall of the pressure tapping groove 72, thereby preventing the pressure tapping pipe 1 from moving and ensuring the stability of the calibration process.
Alternatively, in order to further increase the friction force, the friction portion 41 is provided at the portion of the friction washer 4 abutting against the pressure taking groove 72, and the friction portion 41 is made of a material having a high friction coefficient.
In order to improve the stability of the pressure sampling pipe 1 by one stroke, as shown in fig. 1, a fastening member 6 is further connected to the pressure sampling pipe 1, and the fastening member 6 is annularly arranged on the flow meter 7 and used for fixing the pressure sampling pipe 1 on the flow meter 7. Optionally, in this embodiment, the fastening member 6 includes a first half ring 61, a second half ring 62 and a connecting member 63, one end of each of the first half ring 61 and the second half ring 62 is rotatably connected to the upper end side wall of the pressure tapping pipe 1, the other end of each of the first half ring 61 and the second half ring 62 can be fitted to form a circle, during the operation of the pressure tapping device for calibrating a flowmeter, the pressure tapping pipe 1 is placed in the pressure tapping groove 72 of the flowmeter 7, one end of each of the first half ring 61 and the second half ring 62 is connected to the pressure tapping pipe 1, and the other end of each of the first half ring 61 and the second half ring 62 can be fitted to the side wall opposite to the pressure tapping groove 72 and locked by the connecting member 63, so that the pressure tapping pipe 1 can be effectively.
In order to ensure that the flow meter calibration pressure tapping device is not corroded by the fluid medium to be tested and has longer service life, an anti-rust layer is optionally coated on the surface of the pressure tapping pipe 1. Alternatively, in the present embodiment, the rust preventive layer is a rust preventive paint.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A flowmeter calibrates pressure taking device, its characterized in that includes:
the pressure tapping pipe comprises a pressure tapping pipe (1), wherein the bottom end of the pressure tapping pipe (1) is connected with a pressure tapping opening (71) of a flowmeter (7), an internal thread part (11) is arranged on the inner side of the top end of the pressure tapping pipe (1), the internal thread part (11) is used for being fixedly connected with a calibration instrument, and a stop plate (12) is arranged on the outer side of the pressure tapping pipe (1) in a surrounding mode;
the sealing nut (2) is in threaded connection with an external thread part (13) of the outer wall of the pressure tapping pipe (1), and is positioned above the blocking plate (12);
the sealing washer (3) is positioned between the sealing nut (2) and the blocking plate (12), and can be in sealing connection with the inner wall of a pressure taking groove (72) communicated with the upper part of the pressure taking port (71) under the extrusion action of the sealing nut (2) and the blocking plate (12);
the fastening piece (6) is connected with the pressure sampling pipe (1), is annularly arranged on the flowmeter (7) and is used for fixing the pressure sampling pipe (1) on the flowmeter (7).
2. The flowmeter calibrating pressure tapping device according to claim 1, further comprising a friction washer (4), wherein the friction washer (4) is located between the seal nut (2) and the seal washer (3), and the friction washer (4) is configured to be capable of abutting against the inner wall of the pressure tapping groove (72) under the pressing action of the seal nut (2) and the seal washer (3).
3. The flowmeter calibrating pressure tapping device according to claim 1, further comprising a friction washer (4) and a friction nut (5), wherein the friction nut (5) is located above the sealing nut (2) and is in threaded connection with the external threaded portion (13), the friction washer (4) is located between the friction nut (5) and the sealing nut (2), and the friction washer (4) is configured to be capable of abutting against the inner wall of the pressure tapping groove (72) under the pressing action of the friction nut (5) and the sealing nut (2).
4. The flowmeter calibrating pressure tapping device according to any one of claims 2 and 3, wherein the part of the friction washer (4) abutting against the pressure tapping groove (72) is provided with a friction part (41).
5. A flowmeter calibrating pressure tapping device according to any one of claims 1-3, characterized in that said blocking plate (12) is formed integrally with said pressure tapping pipe (1).
6. The flowmeter calibrating pressure tapping device according to any one of claims 1-3, wherein the outer wall of the top end of the pressure tapping pipe (1) is polygonal.
7. The flowmeter calibrating pressure tapping device according to any one of claims 1-3, wherein the inner side of the pressure tapping pipe (1) comprises a smooth portion connected with the internal threaded portion (11), when the pressure tapping pipe (1) is connected with the calibrating instrument, the smooth portion is butted with a connecting pipe of the calibrating instrument, and the inner diameter of the smooth portion is the same as the inner diameter of the connecting pipe.
8. The flowmeter calibrating and pressure tapping device according to any one of claims 1-3, wherein the fastener (6) comprises a first half ring (61), a second half ring (62) and a connecting piece (63), one end of each of the first half ring (61) and the second half ring (62) is rotatably connected with the upper end side wall of the pressure tapping pipe (1), and the other end of each of the first half ring (61) and the second half ring (62) is locked by the connecting piece (63).
9. The flowmeter calibrating pressure tapping device according to any one of claims 1-3, wherein the pressure tapping pipe (1) is coated with a rust preventive layer.
10. The flowmeter pressure calibrating and taking device as claimed in claim 9, wherein the rust preventive layer is made of antirust paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022594478.5U CN213481484U (en) | 2020-11-11 | 2020-11-11 | Flowmeter calibration pressure taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022594478.5U CN213481484U (en) | 2020-11-11 | 2020-11-11 | Flowmeter calibration pressure taking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213481484U true CN213481484U (en) | 2021-06-18 |
Family
ID=76354726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022594478.5U Active CN213481484U (en) | 2020-11-11 | 2020-11-11 | Flowmeter calibration pressure taking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213481484U (en) |
-
2020
- 2020-11-11 CN CN202022594478.5U patent/CN213481484U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5560392A (en) | Valve for a measuring device | |
| EP1571379B1 (en) | Sealing assembly | |
| JP5912641B2 (en) | Mounting structure for fluid measurement sensor | |
| KR101438021B1 (en) | Pipe joint | |
| CN108426036B (en) | Radial sealing device with adjustable sealing pressure | |
| KR20180125606A (en) | Dent and groove fluid delivery subcomponents and assemblies | |
| CN213481484U (en) | Flowmeter calibration pressure taking device | |
| US20130047740A1 (en) | Assembly for connecting a measuring instrument to a container containing the medium to be measured | |
| US12085465B2 (en) | Diaphragm seal with integral flushing ring | |
| CN217583146U (en) | Special type industry is dustproof seal structure for manometer | |
| KR101016495B1 (en) | Diaphragm pressure sensor | |
| JP6020492B2 (en) | Electromagnetic flow meter | |
| CN213956479U (en) | Pitot flowmeter | |
| CN212390106U (en) | Sealing connection structure | |
| CN210397320U (en) | Integral ball sealing pressure measuring joint | |
| CN210774477U (en) | Pressure fluctuation detection device for grinder | |
| CN211082978U (en) | Hard-seal fuel oil back pressure valve of diesel engine | |
| CN220396867U (en) | Thermal welding joint | |
| CN202393550U (en) | Differential pressure sensor capable of measuring various fluid media | |
| CN221280525U (en) | Pressure measuring device for aerosols | |
| CN220416366U (en) | Sealing node structure of container valve and pressure gauge | |
| CN211784033U (en) | Pressure transmitter | |
| CN219796426U (en) | Sealing joint for fuel injection system test detection | |
| CN219388681U (en) | Three-way needle valve device and pipeline pressure detection system | |
| CN214096228U (en) | Flowmeter for measuring viscosity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A pressure measuring device for calibrating flow meters Granted publication date: 20210618 Pledgee: Postal Savings Bank of China Limited Shanghai Jinshan District Branch Pledgor: SHANGHAI KEYONTECHS Co.,Ltd. Registration number: Y2024310000477 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |