CN217133109U - Calibration test experiment platform for micro-water humidity sensor - Google Patents
Calibration test experiment platform for micro-water humidity sensor Download PDFInfo
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- CN217133109U CN217133109U CN202220854486.5U CN202220854486U CN217133109U CN 217133109 U CN217133109 U CN 217133109U CN 202220854486 U CN202220854486 U CN 202220854486U CN 217133109 U CN217133109 U CN 217133109U
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Abstract
The utility model discloses a little water humidity transducer calibration test experiment platform, including first drying cylinder, the end of giving vent to anger of first drying cylinder has the drying cylinder of second through the pipeline intercommunication, the end of giving vent to anger of the drying cylinder of second has the relief pressure valve through the pipeline intercommunication, the end of giving vent to anger of relief pressure valve has first valve through the pipeline intercommunication, the end of giving vent to anger of first valve communicates respectively through the pipeline has first moisture flowmeter, second moisture flowmeter and dry gas flowmeter, the end of giving vent to anger of second moisture flowmeter has the second valve through the pipeline intercommunication, the end of giving vent to anger of second valve and first moisture flowmeter has the constant temperature basin through the pipeline intercommunication. This practicality possesses the advantage that the precision is high, has solved when carrying out calibration test to little moisture content sensor, and the control of being not convenient for gets into the gas of calibration instrument and little moisture content sensor, makes the humidity of test gas keep unanimous, has reduced the problem of little moisture content sensor calibration precision.
Description
Technical Field
The utility model relates to a little moisture sensor detects technical field, specifically is a little moisture sensor calibration test experiment platform.
Background
Because water is polar molecule, dipole moment is great, under the effect of hydrogen bond, has stronger adsorptivity, and there is a large amount of steam widely in the atmospheric environment, it is very difficult to on-the-spot detection to little water content, transformer substation's switch and hydrogen generation station, hydrogen-cooled generator set hydrogen need carry out the detection of little water, special gas of trades such as metallurgy, chemical fibre, petrochemical industry also need carry out little water and detect, the detection of little water in the gas, it is relevant with gaseous temperature and pressure, little water humidity transducer's volume is less, it is high to detect the precision, wide application is in the field that gas humidity detected, little water humidity transducer needs to calibrate little water humidity transducer's detected value after processing is accomplished.
When the micro-water humidity sensor is calibrated and tested, the gas entering the calibrating instrument and the micro-water humidity sensor is not convenient to control, so that the humidity of the tested gas is kept consistent, and the calibration precision of the micro-water humidity sensor is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a little moisture sensor calibration test experiment platform possesses the high advantage of precision, has solved when carrying out the calibration test to little moisture sensor, and the control of being not convenient for gets into the gas of calibrating instrument and little moisture sensor, makes test gas's humidity keep unanimous, has reduced the problem of little moisture sensor calibration precision.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a little water humidity transducer calibration test experiment platform, includes a first drying section of thick bamboo, the end of giving vent to anger of a first drying section of thick bamboo has a second drying section of thick bamboo through the pipeline intercommunication, the end of giving vent to anger of a second drying section of thick bamboo has the relief pressure valve through the pipeline intercommunication, the end of giving vent to anger of relief pressure valve has first valve through the pipeline intercommunication respectively, the end of giving vent to anger of first valve has first moisture flowmeter, second moisture flowmeter and dry gas flowmeter through the pipeline intercommunication respectively, the end of giving vent to anger of second moisture flowmeter has the second valve through the pipeline intercommunication, the end of giving vent to anger of second valve and first moisture flowmeter has the constant temperature basin through the pipeline intercommunication, the end of giving vent to anger of constant temperature basin has the moisture chamber through the pipeline intercommunication, the end of giving vent to anger of moisture chamber and dry gas flowmeter has the gas mixing valve through the pipeline intercommunication respectively, the end of giving vent to anger of gas mixing valve has first needle valve, The second needle valve and the micro-water humidity sensor, the air outlet end of the first needle valve is communicated with a dew point meter through a pipeline.
In order to facilitate carrying out the drying to test gas, conduct the utility model discloses a little moisture sensor calibration test experiment platform is preferred, the inlet end of first drying cylinder has the air inlet through the pipeline intercommunication, the inner chamber packing of first drying cylinder and second drying cylinder has the drier.
In order to facilitate the moisture to the humidity chamber inside keeps warm, as the utility model discloses a little moisture sensor calibration test experiment platform is preferred, the humidity chamber is insulation material.
For the convenience of contrasting the test data of little water humidity transducer and dew point hygrometer, conduct the utility model discloses a little water humidity transducer calibration test experiment platform is preferred, the output electric connection of little water humidity transducer and dew point hygrometer has the computer.
In order to facilitate the liquid level and the temperature to the constant temperature basin to detect, conduct the utility model discloses a little water humidity transducer calibration test experiment platform is preferred, fixed mounting has level gauge and temperature sensor on the constant temperature basin.
In order to facilitate the control test gaseous humidification volume, as the utility model discloses a little moisture sensor calibration test experiment platform is preferred, first moisture flowmeter's maximum flow is 50sccm, second moisture flowmeter's maximum flow is 3L.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a first drying cylinder, the second drying cylinder, second moisture flowmeter, dry gas flowmeter, the second valve, the air inlet, the constant temperature basin, the humid air chamber, the gas mixing valve, first needle valve, the second needle valve, first moisture flowmeter, the cooperation of first valve and relief pressure valve is used, solved when carrying out the calibration test to little water humidity transducer, the control of being not convenient for gets into the gas of calibration instrument and little water humidity transducer, make test gas's humidity keep unanimous, the problem of little water humidity transducer calibration precision has been reduced.
2. The utility model discloses a cooperation of first drying cylinder and second drying cylinder is used, can be convenient for absorb the moisture in the test gas, through setting up the air inlet, can be convenient for test gas enters into first drying cylinder, through setting up the relief pressure valve, can be convenient for reduce test gas's pressure, through setting up first valve, can be convenient for test gas enters into first moisture flowmeter, in second moisture flowmeter and the dry gas flowmeter, through setting up the second valve, can be convenient for control second moisture flowmeter gives vent to anger, through setting up the constant temperature basin, can be convenient for carry out the humidification to test gas, through setting up the humid air chamber, can be convenient for buffer the equilibrium to the humid gas, through setting up the gas mixing valve, can be convenient for mix humid gas and dry gas, make it become the standard humidity gas of certain steam concentration.
Drawings
Fig. 1 is the experimental flow chart of the present invention.
In the figure: 1. a first drying cylinder; 2. a second drying cylinder; 3. a second wet gas flow meter; 4. a dry gas flow meter; 5. a second valve; 6. an air inlet; 7. a constant temperature water tank; 8. a moisture chamber; 9. a gas mixing valve; 10. a first needle valve; 11. a second needle valve; 12. a micro-water humidity sensor; 13. a computer; 14. a dew point meter; 15. a first wet gas flow meter; 16. a first valve; 17. a pressure reducing valve.
Detailed Description
Referring to fig. 1, an experimental platform for calibration and test of a micro-water humidity sensor comprises a first drying cylinder 1, an air outlet end of the first drying cylinder 1 is communicated with a second drying cylinder 2 through a pipeline, an air outlet end of the second drying cylinder 2 is communicated with a pressure reducing valve 17 through a pipeline, an air outlet end of the pressure reducing valve 17 is communicated with a first valve 16 through a pipeline, an air outlet end of the first valve 16 is respectively communicated with a first moisture flowmeter 15, a second moisture flowmeter 3 and a dry gas flowmeter 4 through pipelines, an air outlet end of the second moisture flowmeter 3 is communicated with a second valve 5 through a pipeline, an air outlet end of the second valve 5 and an air outlet end of the first moisture flowmeter 15 are communicated with a constant temperature water tank 7 through a pipeline, an air outlet end of the constant temperature water tank 7 is communicated with a wet gas chamber 8 through a pipeline, an air outlet end of the wet gas chamber 8 and an air outlet end of the dry gas flowmeter 4 are communicated with a gas mixing valve 9 through a pipeline, an air outlet end of the gas mixing valve 9 is respectively communicated with a first needle valve 10 and a first needle valve 10 through a pipeline, The second needle valve 11 and the micro-water humidity sensor 12, the air outlet end of the first needle valve 10 is communicated with a dew point meter 14 through a pipeline.
In this embodiment: the test gas enters the first drying cylinder 1, the first drying cylinder 1 absorbs moisture in the test gas and discharges the gas into the second drying cylinder 2, the second drying cylinder 2 absorbs the moisture in the test gas again to increase the drying effect of the test gas, the dried test gas enters the pressure reducing valve 17, the pressure reducing valve 17 reduces the pressure of the test gas, the reduced test gas respectively enters the first moisture flowmeter 15, the second moisture flowmeter 3 and the dry gas flowmeter 4, the second valve 5 is opened when a large flow of gas needs to be tested, the second valve 5 is closed when a small flow of gas needs to be tested to prevent the gas from flowing out through the second moisture flowmeter 3, the test gas discharged from the second moisture flowmeter 3 and the first moisture flowmeter 15 enters the constant temperature water tank 7, and the constant temperature water tank 7 humidifies the test gas, the humidified test gas enters the wet gas chamber 8, the wet gas chamber 8 buffers and balances the gas, the buffered moisture enters the gas mixing valve 9, the dry gas discharged by the dry gas flowmeter 4 enters the gas mixing valve 9, the gas mixing valve 9 mixes the moisture and the dry gas, the mixed standard moisture respectively enters the first needle valve 10, the second needle valve 11 and the micro-water humidity sensor 12, the moisture discharged by the first needle valve 10 enters the dew point instrument 14, the second needle valve 11 discharges redundant moisture, the micro-water humidity sensor 12 and the dew point instrument 14 measure the humidity of the test gas and transmit the measurement data to the computer 13, and the computer 13 transmits the measurement data of the dew point comparator 14 and the micro-water humidity sensor 12 to calibrate and test the micro-water humidity sensor 12.
As a technical optimization scheme of the utility model, the inlet end of first drying cylinder 1 has air inlet 6 through the pipeline intercommunication, and the inner chamber packing of first drying cylinder 1 and second drying cylinder 2 has the drier.
In this embodiment: the air inlet 6 is arranged at the air inlet end of the first drying cylinder 1, external test gas can enter the first drying cylinder 1 conveniently for drying, and the inner cavities of the first drying cylinder 1 and the second drying cylinder 2 are filled with drying agents, so that moisture in the test gas can be absorbed conveniently.
As a technical optimization scheme of the utility model, the moisture chamber 8 is made of heat-insulating material.
In this embodiment: the humidity chamber 8 is made of a heat insulation material, so that the test gas after humidification can be conveniently insulated, and the moisture in the test gas is prevented from being condensed.
As a technical optimization scheme of the utility model, the output electric connection of little water humidity transducer 12 and dew point hygrometer 14 has computer 13.
In this embodiment: the output electric connection of little water humidity sensor 12 and dew point hygrometer 14 has computer 13, and computer 13 receives little water humidity sensor 12 and dew point hygrometer 14's test data, can be convenient for compare data, comes to calibrate little water humidity sensor 12's measurement accuracy.
As a technical optimization scheme of the utility model, fixed mounting has level gauge and temperature sensor on the constant temperature water tank 7.
In this embodiment: the liquid level meter and the temperature sensor are respectively arranged on the constant-temperature water tank 7, the liquid level inside the constant-temperature water tank 7 can be conveniently detected by arranging the liquid level meter, and the water temperature inside the constant-temperature water tank 7 can be conveniently detected by arranging the temperature sensor.
As a technical optimization scheme of the present invention, the maximum flow rate of the first moisture flow meter 15 is 50sccm, and the maximum flow rate of the second moisture flow meter 3 is 3L.
In this embodiment: the maximum flow rate of the first moisture flow meter 15 is 50sccm, and the maximum flow rate of the second moisture flow meter 3 is 3L, so that the flow rate of the gas passing through the first moisture flow meter 15 is small, and the flow rate of the gas passing through the second moisture flow meter 3 is large, which can facilitate simulation of gases with different flow rates.
When the device is used, test gas enters the first drying cylinder 1, the first drying cylinder 1 absorbs moisture in the test gas and discharges the gas into the second drying cylinder 2, the second drying cylinder 2 absorbs the moisture in the test gas again to increase the drying effect of the test gas, the dried test gas enters the pressure reducing valve 17, the pressure reducing valve 17 reduces the pressure of the test gas, the reduced test gas respectively enters the first moisture flowmeter 15, the second moisture flowmeter 3 and the dry gas flowmeter 4, the second valve 5 is opened when large-flow gas needs to be tested, the second valve 5 is closed when small-flow gas needs to be tested to prevent the gas from flowing out through the second moisture flowmeter 3, the test gas discharged from the second moisture flowmeter 3 and the first moisture flowmeter 15 enters the constant-temperature water tank 7, and the constant-temperature water tank 7 humidifies the test gas, the humidified test gas enters the wet gas chamber 8, the wet gas chamber 8 buffers and balances the gas, the buffered moisture enters the gas mixing valve 9, the dry gas discharged by the dry gas flowmeter 4 enters the gas mixing valve 9, the gas mixing valve 9 mixes the moisture and the dry gas, the mixed standard moisture respectively enters the first needle valve 10, the second needle valve 11 and the micro-water humidity sensor 12, the moisture discharged by the first needle valve 10 enters the dew point instrument 14, the second needle valve 11 discharges redundant moisture, the micro-water humidity sensor 12 and the dew point instrument 14 measure the humidity of the test gas and transmit the measurement data to the computer 13, and the computer 13 transmits the measurement data of the dew point comparator 14 and the micro-water humidity sensor 12 to calibrate and test the micro-water humidity sensor 12.
In summary, the following steps: this little water humidity transducer calibration test experiment platform, through first drying cylinder 1, second drying cylinder 2, second moisture flowmeter 3, dry gas flowmeter 4, second valve 5, air inlet 6, thermostatic water tank 7, humid air chamber 8, gas mixing valve 9, first needle valve 10, second needle valve 11, first moisture flowmeter 15, first valve 16 and relief pressure valve 17's cooperation is used, solved when carrying out calibration test to little water humidity transducer, the gas that is not convenient for control to get into calibration instrument and little water humidity transducer, make test gas's humidity keep unanimous, the problem of little water humidity transducer calibration precision has been reduced.
Claims (6)
1. The utility model provides a little water humidity transducer calibration test experiment platform, includes first drying cylinder (1), its characterized in that: the air outlet end of the first drying cylinder (1) is communicated with a second drying cylinder (2) through a pipeline, the air outlet end of the second drying cylinder (2) is communicated with a pressure reducing valve (17) through a pipeline, the air outlet end of the pressure reducing valve (17) is communicated with a first valve (16) through a pipeline, the air outlet end of the first valve (16) is respectively communicated with a first moisture flowmeter (15), a second moisture flowmeter (3) and a dry air flowmeter (4) through pipelines, the air outlet end of the second moisture flowmeter (3) is communicated with a second valve (5) through a pipeline, the air outlet ends of the second valve (5) and the first moisture flowmeter (15) are communicated with a constant temperature water tank (7) through pipelines, the air outlet end of the constant temperature water tank (7) is communicated with a wet air chamber (8) through a pipeline, the air outlet ends of the wet air chamber (8) and the dry air flowmeter (4) are communicated with a gas mixing valve (9) through a pipeline, the gas mixing valve (9) give vent to anger and hold first needle valve (10), second needle valve (11) and little water humidity transducer (12) of intercommunication respectively through the pipeline, the end of giving vent to anger of first needle valve (10) is through pipeline intercommunication dew point meter (14).
2. The micro water humidity sensor calibration test experiment platform according to claim 1, wherein: the air inlet end of the first drying cylinder (1) is communicated with an air inlet (6) through a pipeline, and the inner cavities of the first drying cylinder (1) and the second drying cylinder (2) are filled with drying agents.
3. The micro water humidity sensor calibration test experiment platform according to claim 1, wherein: the moisture chamber (8) is made of heat insulation material.
4. The micro water humidity sensor calibration test experiment platform according to claim 1, wherein: and the output ends of the micro-water humidity sensor (12) and the dew-point meter (14) are electrically connected with a computer (13).
5. The micro water humidity sensor calibration test experiment platform according to claim 1, wherein: and a liquid level meter and a temperature sensor are fixedly arranged on the constant-temperature water tank (7).
6. The micro water humidity sensor calibration test experiment platform according to claim 1, wherein: the maximum flow rate of the first moisture flow meter (15) is 50sccm, and the maximum flow rate of the second moisture flow meter (3) is 3L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220854486.5U CN217133109U (en) | 2022-04-13 | 2022-04-13 | Calibration test experiment platform for micro-water humidity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220854486.5U CN217133109U (en) | 2022-04-13 | 2022-04-13 | Calibration test experiment platform for micro-water humidity sensor |
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| Publication Number | Publication Date |
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| CN217133109U true CN217133109U (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220854486.5U Active CN217133109U (en) | 2022-04-13 | 2022-04-13 | Calibration test experiment platform for micro-water humidity sensor |
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| Country | Link |
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| CN (1) | CN217133109U (en) |
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- 2022-04-13 CN CN202220854486.5U patent/CN217133109U/en active Active
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