CN211527562U - Auxiliary device for calibrating wet gas flowmeter by standard metal gauge - Google Patents
Auxiliary device for calibrating wet gas flowmeter by standard metal gauge Download PDFInfo
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- CN211527562U CN211527562U CN201922086426.4U CN201922086426U CN211527562U CN 211527562 U CN211527562 U CN 211527562U CN 201922086426 U CN201922086426 U CN 201922086426U CN 211527562 U CN211527562 U CN 211527562U
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Abstract
An auxiliary device for calibrating a wet gas flowmeter by a standard metal measuring device comprises an upper water tank, a lower water tank, a water pump, an upper water port, an exhaust port, a connecting port of a tested device and a water outlet; the upper water tank and the lower water tank are communicated through a pipeline, a water pump is mounted on the pipeline, the water inlet is formed in the upper water tank, the air outlet and a connecting port of a tested device are formed in the top of the upper water tank, and the water outlet is formed in the bottom of the upper water tank. Use the utility model discloses can guarantee the zonulae occludens of standard metal volume ware and surveyed utensil to guarantee the leakproofness of working process. Meanwhile, the water feeding in the calibration process can be automatically finished, so that the working strength of calibration is reduced, and the working efficiency is improved.
Description
The technical field is as follows:
the utility model relates to a gas flowmeter calibrates the field, especially relates to an auxiliary device that standard metal measuring vessel carries out calibration to wet-type gas flowmeter.
Background art:
according to the specification of JJF1357-2012 'calibration procedure for wet gas flowmeter', the main standard for calibration of wet gas flowmeter can be selected from a piston type gas flow standard device, a bell type gas flow standard device, a sonic nozzle method gas flow standard device and the like. At present, a main standard device generally selected by a wet gas flowmeter calibrating mechanism is a standard metal measuring device, but the main standard device is not easily connected with a measured device due to the structural characteristics of the standard device, so that the sealing performance in the working process is not easily ensured. Meanwhile, the degree of automation is low, and water feeding is finished manually in the calibration process, so that the calibration work intensity is high, and the work efficiency is low.
The invention content is as follows:
the object of the utility model is to overcome the not enough that exists among the above-mentioned prior art just, and provide an auxiliary device that is used for standard metal measuring vessel to carry out the calibration to wet-type gas flowmeter, use the device can guarantee the zonulae occludens of standard metal measuring vessel and surveyed utensil to guarantee the leakproofness of working process. Meanwhile, the water feeding in the calibration process can be automatically finished, so that the working strength of calibration is reduced, and the working efficiency is improved.
As the conception, the technical proposal of the utility model is that: an auxiliary device for calibrating a wet gas flowmeter by using a standard metal measuring device is characterized in that: comprises an upper water tank, a lower water tank, a water pump, an upper water port, an exhaust port, a connector of a tested device and a water outlet; the upper water tank and the lower water tank are communicated through a pipeline, a water pump is mounted on the pipeline, the water inlet is formed in the upper water tank, the air outlet and a connecting port of a tested device are formed in the top of the upper water tank, and the water outlet is formed in the bottom of the upper water tank.
The upper water tank is of a cylinder structure, the diameter of the cylinder is 300mm, and the length of the cylinder is 400 mm.
The lower water tank is of a cuboid structure, and the length, the width and the height of the cuboid structure are respectively 610mm, 600mm and 160 mm.
The water pump is a pipeline pump with the power of 100W.
The upper water tank is connected with a liquid level device through a three-way needle valve, the diameter of the liquid level device is 10mm, and the length of the liquid level device is 300 mm.
The diameter of the water feeding port is 20mm, and a 6-minute ball valve is arranged.
The exhaust port was 20mm in diameter and was equipped with a 6-point ball valve.
The connection port of the device under test had a diameter of 16mm and was equipped with a 4-point ball valve.
The diameter of the water outlet is 20mm, the length of the water outlet is 20mm-40mm, and the water outlet is provided with a flow regulating valve.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses can assist standard metal measuring vessel to calibrate wet-type gas flowmeter, solve metal standard metal measuring vessel and the difficult problem of being connected of being surveyed wet-type gas flowmeter.
2. The utility model discloses can the leakproofness of greatly increased system, improve the accuracy of calibration.
3. Compared with the traditional method, the utility model, water feeding system adopts the water pump to water automatically, reduces working strength, has improved work efficiency.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-an exhaust port; 2-a connection port of the device to be tested; 3-water feeding port; 4-an upper water tank; 5-a liquid level device; 6, a water pump; 7-a water outlet; 8-standard metal gauge; 9-standard metal measuring vessel water outlet; 10-lower water tank.
The specific implementation mode is as follows:
the invention will be further explained with reference to the following description and the attached drawings, which should not be construed as limiting the scope of the invention.
As shown in the figure: an auxiliary device for calibrating a wet gas flowmeter by a standard metal measuring device comprises an upper water tank, a lower water tank, a water pump, an upper water port, an exhaust port, a connector of a tested device and a water outlet; the upper water tank and the lower water tank are communicated through a pipeline, a water pump is mounted on the pipeline, the water inlet is arranged on the upper right side of the upper water tank, the air outlet is arranged at the top of the upper water tank, a connector of the detected device is arranged at the top of the upper water tank, and the water outlet is arranged at the bottom of the upper water tank.
The upper water tank is of a cylinder structure, the diameter of the cylinder is 300mm, and the length of the cylinder is 400 mm.
The lower water tank is of a cuboid structure, and the length, the width and the height of the cuboid structure are respectively 610mm, 600mm and 160 mm.
The water pump is a pipeline pump with the power of 100W, and is arranged on a pipeline for communicating the upper water tank with the lower water tank, and the diameter of the pipeline is 20 mm.
The upper water tank is connected with a liquid level device through a three-way needle valve, and the liquid level device is 10mm in diameter and 300mm in length.
The water feeding port is positioned at the right upper side of the upper water tank, has the diameter of 20mm and is provided with a 6-minute ball valve.
The exhaust port is positioned at the top of the upper water tank, has the diameter of 20mm and is provided with a 6-minute ball valve.
The connecting port of the tested device is positioned at the top of the upper water tank, has the diameter of 16mm and is provided with a 4-minute ball valve.
The water outlet is positioned at the bottom of the upper water tank, has the diameter of 20mm and the length of 20mm-40mm, and is connected with the flow regulating valve.
The utility model discloses a calibration work step as follows:
1. opening the ball valve at the exhaust port 1 and the water feeding port 3 and the three-way needle valve at the liquid level device 5, and closing the flow regulating valve at the connecting port 2 and the water discharging port 7 of the tested device. And starting the water pump, adding water into the upper water tank, stopping the water pump when the liquid level indicator indicates a proper position, and stopping adding water.
2. Closing the ball valve at the exhaust port 1, the water feeding port 3 and the three-way needle valve at the liquid level device 5, closing the ball valve 9 at the water discharging port of the standard metal measuring device, and opening the ball valve at the connecting port 2 of the measured device. And opening a flow regulating valve at the water outlet 7 according to the flow requirement to start calibration, enabling the water in the upper water tank to flow into the standard metal measuring device, and forming negative pressure in the upper water tank to drive the to-be-measured wet gas flowmeter to rotate. When the water level in the standard metal measuring vessel rises to the neck scale, the flow regulating valve at the water outlet 7 is quickly closed. And reading the volume of the liquid in the standard metal measuring device and the volume measured by the wet gas flowmeter, and calculating according to a related calculation method to obtain the calibration result of the time.
3. And opening the ball valve 9 at the water outlet of the standard metal measuring device, discharging the water in the measuring device into the lower water tank 10, and closing the ball valve 9 at the water outlet of the standard metal measuring device after the water in the measuring device is emptied.
4. And (5) repeating the steps 1 and 2, and carrying out next calibration work.
Although the present invention has been described and illustrated in detail with reference to specific embodiments thereof, it should be understood that various equivalent changes and modifications can be made therein in accordance with the present invention, and the functional effects thereof are not beyond the spirit of the present invention.
Claims (9)
1. An auxiliary device for calibrating a wet gas flowmeter by using a standard metal measuring device is characterized in that: comprises an upper water tank, a lower water tank, a water pump, an upper water port, an exhaust port, a connector of a tested device and a water outlet; the upper water tank and the lower water tank are communicated through a pipeline, a water pump is mounted on the pipeline, the water inlet is formed in the upper water tank, the air outlet and a connecting port of a tested device are formed in the top of the upper water tank, and the water outlet is formed in the bottom of the upper water tank.
2. The standard metal gauge as recited in claim 1, wherein the calibration aid comprises: the upper water tank is of a cylinder structure, the diameter of the cylinder is 300mm, and the length of the cylinder is 400 mm.
3. The standard metal gauge as recited in claim 1, wherein the calibration aid comprises: the lower water tank is of a cuboid structure, and the length, the width and the height of the cuboid structure are respectively 610mm, 600mm and 160 mm.
4. The standard metal gauge as recited in claim 1, wherein the calibration aid comprises: the water pump is a pipeline pump with the power of 100W.
5. The standard metal gauge as recited in claim 1, wherein the calibration aid comprises: the upper water tank is connected with a liquid level device through a three-way needle valve, the diameter of the liquid level device is 10mm, and the length of the liquid level device is 300 mm.
6. The standard metal gauge as recited in claim 1, wherein the calibration aid comprises: the diameter of the water feeding port is 20mm, and a 6-minute ball valve is arranged.
7. The standard metal gauge as recited in claim 1, wherein the calibration aid comprises: the exhaust port was 20mm in diameter and was equipped with a 6-point ball valve.
8. The standard metal gauge as recited in claim 1, wherein the calibration aid comprises: the connection port of the device under test had a diameter of 16mm and was equipped with a 4-point ball valve.
9. The standard metal gauge as recited in claim 1, wherein the calibration aid comprises: the diameter of the water outlet is 20mm, the length of the water outlet is 20mm-40mm, and the water outlet is provided with a flow regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922086426.4U CN211527562U (en) | 2019-11-28 | 2019-11-28 | Auxiliary device for calibrating wet gas flowmeter by standard metal gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922086426.4U CN211527562U (en) | 2019-11-28 | 2019-11-28 | Auxiliary device for calibrating wet gas flowmeter by standard metal gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211527562U true CN211527562U (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922086426.4U Active CN211527562U (en) | 2019-11-28 | 2019-11-28 | Auxiliary device for calibrating wet gas flowmeter by standard metal gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211527562U (en) |
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2019
- 2019-11-28 CN CN201922086426.4U patent/CN211527562U/en active Active
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