CN219997113U - Calibrating device for flow velocity meter - Google Patents
Calibrating device for flow velocity meter Download PDFInfo
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- CN219997113U CN219997113U CN202321715383.1U CN202321715383U CN219997113U CN 219997113 U CN219997113 U CN 219997113U CN 202321715383 U CN202321715383 U CN 202321715383U CN 219997113 U CN219997113 U CN 219997113U
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- inlet channel
- fan
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- 238000004891 communication Methods 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 19
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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Abstract
The utility model relates to the field of flowmeter calibration, in particular to a flowmeter calibration device, which comprises a mounting seat, a three-way pipe, a fan, a mounting pipe, a standard flowmeter and a change-over switch, wherein the mounting seat is provided with a three-way pipe; the mounting seat is provided with an air inlet channel, and is provided with a to-be-tested flow velocity meter mounting port penetrating through the air inlet channel; the three-way pipe is connected with the fan, the mounting pipe and the air inlet channel respectively, the standard flow velocity meter is arranged on the mounting pipe, the caliber of the mounting pipe is the same as that of the air inlet channel, the change-over switch is arranged on the three-way pipe, and the change-over switch is used for switching the communication of the fan and the mounting pipe or the air inlet channel. The flowmeter calibrating device provided by the utility model has the advantages of simple structure and easiness in operation, and eliminates the hidden danger of manual disassembly and assembly in the calibrating and testing process.
Description
Technical Field
The utility model relates to the field of flowmeter calibration, in particular to a flowmeter calibration device.
Background
The flow velocity meter is an instrument for measuring the flow velocity, and after the flow velocity meter is produced, the flow velocity meter needs to be detected and calibrated, so that the problem that the later use data is inaccurate due to inaccurate flow velocity meter is avoided. The calibration method can refer to Chinese patent application number 201410305644.1, which is named as a calibration connection method of a flow meter. The existing calibrating device for the flow velocity meter usually adopts a manual disassembly and assembly mode, and the air outlet pipe of the switching fan is connected with a standard meter or a meter to be measured, so that the operation is inconvenient, and hidden danger of incomplete sealing exists.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: provided is a flow rate meter calibration device which is easy to operate and improves calibration accuracy.
In order to solve the technical problems, the utility model adopts the following technical scheme: a calibrating device of a flow velocity meter comprises a mounting seat, a three-way pipe, a fan, a mounting pipe, a standard flow velocity meter and a change-over switch;
the mounting seat is provided with an air inlet channel, and is provided with a to-be-tested flow velocity meter mounting port penetrating through the air inlet channel;
the three-way pipe is connected with the fan, the mounting pipe and the air inlet channel respectively, the standard flow velocity meter is arranged on the mounting pipe, the caliber of the mounting pipe is the same as that of the air inlet channel, the change-over switch is arranged on the three-way pipe, and the change-over switch is used for switching the communication of the fan and the mounting pipe or the air inlet channel.
Further, the fan is connected with the three-way pipe through a connecting pipe, and an air speed regulating valve is arranged on the connecting pipe.
Further, the installation port of the flow meter to be measured is provided with a jack for inserting the detection end of the flow meter to be measured and a rubber sealing piece for sealing the detection end of the flow meter to be measured and the jack.
Further, an operating handle is arranged on the change-over switch.
Further, still include the base, mount pad, three-way pipe, fan and installation tube all set up on the base.
The utility model has the beneficial effects that: a flowmeter calibrating device utilizes a three-way pipe to connect a fan, an installation pipe and an installation seat, utilizes a change-over switch to change over the fan to be communicated with the installation pipe or the installation seat, controls the change-over switch to enable the fan to be connected with the installation seat during use, enables a flowmeter to be measured to be connected with an installation port of the installation seat to be measured, measures and records the flow rate of a medium in an air inlet channel, then controls the change-over switch to enable the fan to be connected with the installation pipe, utilizes a standard flowmeter to measure and record the flow rate in the installation pipe, and can calibrate the flowmeter to be measured after comparison and calculation.
Drawings
FIG. 1 is a schematic diagram of a flow meter calibration device;
FIG. 2 is another schematic structural view of a flow meter calibration device;
FIG. 3 is a cross-sectional view of a flow meter calibration device;
description of the reference numerals:
1. a mounting base; 11. An air inlet channel; 12. A mounting port of a flow velocity meter to be measured; 121. A jack; 122. a rubber seal; 2. A three-way pipe; 3. A blower; 31. A connecting pipe; 32. A wind speed regulating valve; 4. Installing a pipe; 5. A standard flow rate meter; 6. A change-over switch; 61. An operation handle; 7. And (5) a base.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
The utility model provides a flowmeter calibrating device which is applied to a flowmeter calibrating tool.
Referring to fig. 1 to 3, a calibrating device for a flow meter of the present utility model includes a mounting base 1, a tee 2, a fan 3, a mounting tube 4, a standard flow meter 5 and a switch 6;
the mounting seat 1 is provided with an air inlet channel 11, and the mounting seat 1 is provided with a to-be-tested flow velocity meter mounting opening 12 penetrating through the air inlet channel 11;
the three-way pipe 2 is respectively connected with the fan 3, the mounting pipe 4 and the air inlet channel 11, the standard flow velocity meter 5 is arranged on the mounting pipe 4, the caliber of the mounting pipe 4 is the same as that of the air inlet channel 11, the change-over switch 6 is arranged on the three-way pipe 2, and the change-over switch 6 is used for switching the communication between the fan 3 and the mounting pipe 4 or the air inlet channel 11.
From the above description, the beneficial effects of the utility model are as follows: a flowmeter calibrating device utilizes a three-way pipe 2 to connect a fan 3, a mounting pipe 4 and a mounting seat 1, utilizes a change-over switch 6 to switch the fan 3 to be communicated with the mounting pipe 4 or the mounting seat 1, controls the change-over switch 6 to enable the fan 3 to be connected with the mounting seat 1 during use, connects a flowmeter to be measured with a flowmeter mounting opening 12 to be measured of the mounting seat 1, measures and records the flow rate of media in an air inlet channel 11, then controls the change-over switch 6 to enable the fan 3 to be connected with the mounting pipe 4, measures and records the flow rate in the mounting pipe 4 by utilizing a standard flowmeter 5, and can calibrate the flowmeter to be measured after comparison calculation.
In an alternative embodiment, the fan 3 is connected with the tee pipe 2 through a connecting pipe 31, and a wind speed regulating valve 32 is arranged on the connecting pipe 31.
From the above description, the wind speed adjusting valve 32 is used to control the wind speed in the connection pipe 31, thereby satisfying different calibration requirements.
In an alternative embodiment, the mounting port 12 of the flow meter to be measured is provided with a jack 121 into which the detecting end of the flow meter to be measured is inserted, and a rubber seal 122 for sealing the detecting end of the flow meter to be measured and the jack 121.
As is apparent from the above description, the structure of the insertion hole 121 is designed according to the structure of the detecting end of the flow meter, and the sealing property of the cooperation of the two is ensured by the rubber seal 122.
In an alternative embodiment, the switch 6 is provided with an operating handle 61.
As is apparent from the above description, the operation handle 61 functions to facilitate the operation of the changeover switch 6.
In an alternative embodiment, the air conditioner further comprises a base 7, and the mounting base 1, the tee pipe 2, the fan 3 and the mounting pipe 4 are all arranged on the base 7.
The working principle of the utility model is as follows: after the installation seat 1, the three-way pipe 2, the fan 3 and the installation pipe 4 are installed on the base 7 before use, the flow rate meter to be measured is connected with the installation port 12 of the flow rate meter to be measured of the installation seat 1, the standard flow rate meter 5 is connected with the installation pipe 4, during calibration, the change-over switch 6 is operated to enable the fan 3 to be connected with the installation seat 1, the flow rate of a medium in the air inlet channel 11 is measured and recorded, then the change-over switch 6 is operated to enable the fan 3 to be connected with the installation pipe 4, the flow rate in the installation pipe 4 is measured and recorded by the standard flow rate meter 5, and the flow rate meter to be measured can be calibrated after comparison and calculation.
Referring to fig. 1 to 3, a first embodiment of the present utility model is as follows: the calibrating device of the flow velocity meter comprises a mounting seat 1, a three-way pipe 2, a fan 3, a mounting pipe 4, a standard flow velocity meter 5 and a change-over switch 6;
the mounting seat 1 is provided with an air inlet channel 11, and the mounting seat 1 is provided with a to-be-tested flow velocity meter mounting opening 12 penetrating through the air inlet channel 11;
the three-way pipe 2 is respectively connected with the fan 3, the mounting pipe 4 and the air inlet channel 11, the standard flow velocity meter 5 is arranged on the mounting pipe 4, the caliber of the mounting pipe 4 is the same as that of the air inlet channel 11, the change-over switch 6 is arranged on the three-way pipe 2, and the change-over switch 6 is used for switching the communication between the fan 3 and the mounting pipe 4 or the air inlet channel 11.
The fan 3 is connected with the three-way pipe 2 through a connecting pipe 31, and an air speed regulating valve 32 is arranged on the connecting pipe 31. The mounting port 12 of the flow meter to be measured is provided with a jack 121 for inserting the detection end of the flow meter to be measured and a rubber sealing member 122 for sealing the detection end of the flow meter to be measured and the jack 121. The selector switch 6 is provided with an operation handle 61. Still include base 7, mount pad 1, tee pipe 2, fan 3 and install tube 4 all set up on base 7.
In summary, according to the calibrating device for the flow velocity meter, the three-way pipe is used for connecting the fan, the mounting pipe and the mounting seat, the change-over switch is used for switching the fan to be communicated with the mounting pipe or the mounting seat, the change-over switch is controlled to enable the fan to be connected with the mounting seat during use, the flow velocity meter to be measured is connected with the mounting port of the flow velocity meter to be measured of the mounting seat, the flow velocity of a medium in the air inlet channel is measured and recorded, then the change-over switch is controlled to enable the fan to be connected with the mounting pipe, the flow velocity in the mounting pipe is measured and recorded by the standard flow velocity meter, and the flow velocity meter to be measured can be calibrated after comparison and calculation.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (5)
1. The calibrating device for the flow velocity meter is characterized by comprising a mounting seat, a three-way pipe, a fan, a mounting pipe, a standard flow velocity meter and a change-over switch; the mounting seat is provided with an air inlet channel, and is provided with a to-be-tested flow velocity meter mounting port penetrating through the air inlet channel; the three-way pipe is connected with the fan, the mounting pipe and the air inlet channel respectively, the standard flow velocity meter is arranged on the mounting pipe, the caliber of the mounting pipe is the same as that of the air inlet channel, the change-over switch is arranged on the three-way pipe, and the change-over switch is used for switching the communication of the fan and the mounting pipe or the air inlet channel.
2. The flow meter calibration assembly of claim 1, wherein the blower is connected to the tee via a connecting tube, and wherein the connecting tube is provided with a wind speed regulator.
3. The apparatus according to claim 1, wherein the flow meter mounting port to be measured is provided with a jack into which the detection end of the flow meter to be measured is inserted and a rubber seal for sealing the detection end of the flow meter to be measured and the jack.
4. The apparatus of claim 1, wherein the switch is provided with an operating handle.
5. The flow meter calibration assembly of claim 1 further comprising a base, wherein the mount, tee, fan and mounting tube are all disposed on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321715383.1U CN219997113U (en) | 2023-07-03 | 2023-07-03 | Calibrating device for flow velocity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321715383.1U CN219997113U (en) | 2023-07-03 | 2023-07-03 | Calibrating device for flow velocity meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219997113U true CN219997113U (en) | 2023-11-10 |
Family
ID=88612883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321715383.1U Active CN219997113U (en) | 2023-07-03 | 2023-07-03 | Calibrating device for flow velocity meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219997113U (en) |
-
2023
- 2023-07-03 CN CN202321715383.1U patent/CN219997113U/en active Active
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