CN219935408U - Moisture content detection device - Google Patents
Moisture content detection device Download PDFInfo
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- CN219935408U CN219935408U CN202321002484.4U CN202321002484U CN219935408U CN 219935408 U CN219935408 U CN 219935408U CN 202321002484 U CN202321002484 U CN 202321002484U CN 219935408 U CN219935408 U CN 219935408U
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- humidity sensor
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- moisture content
- gas
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 230000001681 protective effect Effects 0.000 claims abstract description 89
- 238000000605 extraction Methods 0.000 claims abstract description 13
- 239000006185 dispersion Substances 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 230000006698 induction Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 23
- 238000005259 measurement Methods 0.000 description 9
- 230000035945 sensitivity Effects 0.000 description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The present utility model provides a moisture content detection device, comprising: the device comprises a protective shell, a gas dispersing assembly, a humidity sensor and an air extracting assembly; an air inlet pipe is communicated with the protective shell, and one end of the air inlet pipe penetrates through and stretches into the protective shell; the gas dispersing assembly is arranged in the protective shell and is close to one end of the gas inlet pipe; the humidity sensor is arranged in the protective shell, and the sensing surface of the humidity sensor is close to the gas dispersing component; the air extraction component comprises an air pump and an air extraction pipe; the air pump sets up on the outer roof of protective housing, and the induction port of air pump communicates with the one end of exhaust tube, and the other end of exhaust tube runs through and stretches into in the protective housing. According to the utility model, the impact force of the moisture-containing gas on the sensing surface of the humidity sensor is reduced, the detected gas is pumped out of the protective shell through the air pump, so that the humidity sensor is prevented from being always exposed to the moisture-containing gas, the damage of the moisture-containing gas to the humidity sensor is further reduced, the accuracy of the moisture content measuring device is improved, and the service life of the sensor probe is prolonged.
Description
Technical Field
The present utility model relates to a moisture content detection technology, and more particularly, to a moisture content detection device.
Background
In the aspects of precision control and process realization, the water vapor content is used as an important parameter index in the wet gas, and whether the measurement accuracy is high or low directly has great influence on the process design application. Therefore, the moisture content detecting device is widely used in process design.
Currently, there are various methods for measuring the humidity of gas, for example: a double-pressure method, a double-temperature method, a dew point method, a wet absorption method, a wet and dry bulb method, a resistance Rong Fa method and a capacitance method. The double-pressure method, the double-temperature method and the dew point method are methods adopted by a laboratory for accurate measurement or calibration of the instrument, and have the defects of complex equipment, high price, long operation time, high maintenance cost, high requirement on the cleanliness of the detected gas and difficulty in realizing long-term online measurement; the wet absorption method and the dry-wet ball method are widely applied under normal temperature and normal pressure, but when the temperature of the gas is higher than 100 ℃ and the relative humidity is higher than 80%, the accurate measurement is difficult, and the dry-wet ball method has high requirements on the flow rate of the gas, and the flow rate of the gas needs to be measured simultaneously. The capacitance-resistance method and the capacitance method gradually obtain market acceptance due to the advantages of quick measurement response, simple measurement equipment, accurate measurement result and the like.
When the existing moisture content detection device detects the moisture content in the gas by adopting a resistance-capacitance method and a capacitance method, the sensor probe is directly placed in the moisture-containing gas for contact measurement, and the sensor probe is used in severe working conditions of high temperature, high humidity and corrosive gas, if the sensor probe is placed in the detection environment for a long time, the sensor probe can be damaged, so that the detection sensitivity of the sensor probe and the accuracy of a detection result can be influenced, and the service life of the sensor probe can be also influenced.
Disclosure of Invention
The present utility model provides a moisture content detection device for solving the technical problems described in the background art.
In order to solve the technical problems, the utility model is realized by adopting the following technical problems:
the utility model provides a moisture content detection device, which comprises a protective shell, a gas dispersion assembly, a humidity sensor and an air extraction assembly, wherein the protective shell is arranged on the air dispersion assembly;
an air inlet pipe is communicated with the protective shell, and one end of the air inlet pipe penetrates through and stretches into the protective shell;
the gas dispersing assembly is arranged in the protective shell and is close to one end of the gas inlet pipe;
the humidity sensor is arranged in the protective shell, and the sensing surface of the humidity sensor is close to the gas dispersing component;
the air extraction component comprises an air pump and an air extraction pipe; the air pump is arranged on the outer top wall of the protective shell, the air suction port of the air pump is communicated with one end of the air suction pipe, and the other end of the air suction pipe penetrates through and stretches into the protective shell.
Optionally, the gas dispersion assembly comprises a semi-arc outer dispersion housing and a semi-arc inner dispersion housing;
the outer dispersing cover is sleeved outside the dispersing cover, a cavity is formed between the outer dispersing cover and the dispersing cover, a plurality of first dispersing holes are uniformly formed in the outer dispersing cover, a plurality of second dispersing holes are uniformly formed in the dispersing cover, the second dispersing holes correspond to the first dispersing holes one by one, and the opening end of the dispersing cover faces the sensing surface of the humidity sensor.
Optionally, the other end of the exhaust tube and one end of the air inlet tube are communicated with two opposite sides of the protective shell.
Optionally, the exhaust tube is located the intercommunication has a plurality of bleeder on the pipe shaft outside the protective housing, and a plurality of the bleeder is kept away from the one end of intake pipe evenly runs through respectively and stretches into in the protective housing.
Optionally, be provided with a plurality of strips that absorb water in the protective housing, a plurality of the strip that absorb water is kept away from humidity transducer's sensing surface sets up on the inner wall of protective housing.
Optionally, the bottom of protective housing is provided with a plurality of bracing pieces, every the top of bracing piece sets up on the bottom surface of protective housing, every the bottom of bracing piece sets up on the reference surface.
Optionally, the support rods are all electric telescopic rods.
Optionally, universal wheels are arranged at the bottom ends of the supporting rods.
According to the moisture content detection device provided by the utility model, the air inlet pipe is communicated with the protective shell, one end of the air inlet pipe penetrates through and stretches into the protective shell, the air dispersing component and the humidity sensor are sequentially arranged at one end, close to the air inlet pipe, in the protective shell, the air pump is arranged on the outer top wall of the protective shell, the air inlet of the air pump is communicated with one end of the air exhaust pipe, the other end of the air exhaust pipe penetrates through and stretches into the protective shell, air outside the protective shell is pumped into the protective shell through the air inlet pipe by the air pump, the air is firstly dispersed by the air dispersing component and then is detected by the humidity sensor, the detected air is pumped out of the protective shell through the air exhaust pipe and the air pump, the moisture content is always in a circulating state in the whole moisture content detection process, the impact force of the moisture content on the sensing surface of the humidity sensor by the moisture content is reduced, the detected air is pumped out of the protective shell through the air pump, the moisture content sensor is prevented from being always exposed to the moisture content, the moisture content sensor is further prevented from damaging the humidity sensor, and the accuracy of the moisture content measurement device is improved, and the service life of the sensor is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a moisture content detecting device according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of the inside of a protective case according to another embodiment of the present utility model;
FIG. 3 is a schematic view of a gas dispersing assembly according to another embodiment of the present utility model;
fig. 4 is a schematic structural view of a protective case with a water absorbing strip according to another embodiment of the present utility model.
In the figure: 100. a protective shell; 101. an air inlet pipe; 102. a water absorbing strip; 103. a support rod; 1031. a universal wheel; 200. a gas dispersion assembly; 201. an outer dispersion cover; 2011. a first dispersion hole; 202. an inner dispersion cover; 2021. a second dispersion hole; 300. a humidity sensor; 400. an air extraction assembly; 401. an air pump; 402. an exhaust pipe; 403. and (3) a branch pipe.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are also within the scope of the utility model.
Referring to fig. 1 to 4, the present utility model provides a moisture content detecting apparatus including a protective case 100, a gas dispersion assembly 200, a humidity sensor 300, and a pumping assembly 400; the protective case 100 plays a role in protecting the humidity sensor 300, preventing the humidity sensor 300 from being exposed to the moisture-containing gas for a long time, and ensuring the sensitivity of the detection of the humidity sensor 300 and the accuracy of the detection result.
The protective shell 100 is communicated with an air inlet pipe 101, and one end of the air inlet pipe 101 penetrates through and stretches into the protective shell 100; the moisture-containing gas enters the protective shell 100 through the air inlet pipe 101
The gas dispersion assembly 200 is disposed within the protective case 100 and near one end of the gas inlet pipe 101; the purpose of the gas dispersing unit 200 is to disperse the moisture-containing gas from one end of the gas inlet pipe 101 and reduce the flow rate of the moisture-containing gas.
The humidity sensor 300 is disposed in the protective case 100, and the sensing surface of the humidity sensor 300 is close to the gas dispersion assembly 200; wherein, the moisture-containing gas dispersed by the gas dispersion assembly 200 is sprayed on the sensing surface of the humidity sensor 300, so that the impact force of the moisture-containing gas on the sensing surface of the humidity sensor 300 is reduced.
The air extraction assembly 400 includes an air pump 401 and an air extraction tube 402; the air pump 401 is disposed on the outer top wall of the protective case 100, the air suction port of the air pump 401 is communicated with one end of the air suction pipe 402, and the other end of the air suction pipe 402 penetrates and extends into the protective case 100. Wherein, the air pump 401 provides the power that the moisture-containing gas gets into the protective housing 100, circulates in the protective housing 100 and is discharged outside the protective housing 100 for the moisture-containing gas gets into the protective housing 100 and after the humidity sensor 300 in the protective housing 100 detects, discharges outside the protective housing 100 again fast, avoids the moisture-containing gas to stay in the protective housing 100 and causes the influence to the sensitivity of the sensing surface of the humidity sensor 300.
According to the moisture content detection device provided by the utility model, the air inlet pipe 101 is communicated with the protective shell 100, one end of the air inlet pipe 101 penetrates through and stretches into the protective shell 100, the air dispersing component 200 and the humidity sensor 300 are sequentially arranged at one end, close to the air inlet pipe 101, of the protective shell 100, the air pump 401 is arranged on the outer top wall of the protective shell 100, the air inlet of the air pump 401 is communicated with one end of the air exhaust pipe 402, the other end of the air exhaust pipe 402 penetrates through and stretches into the protective shell 100, air outside the protective shell 100 is pumped into the protective shell 100 through the air pump 401 by the air pump 101, the moisture in the air is firstly dispersed by the air dispersing component 200 and then is detected by the humidity sensor 300, the detected air is always in a circulating state by the air exhaust pipe 402 and the air pump 401, the humidity sensor 300 detects the air dispersed by the air dispersing component, the impact force of the humidity sensor 300 on the sensing surface of the humidity sensor 300 is reduced, the detected air is prevented from being always exposed to the humidity sensor 300 by the air pump 401, the humidity sensor 300 is prevented from being always exposed to the humidity sensor, the humidity sensor 300 is prevented from being further, the humidity sensor 300 is prevented from being accurately exposed to the humidity sensor, and the humidity sensor is prevented from being accurately used, and the service life of the humidity sensor is prolonged.
In some embodiments, referring to FIG. 3, a gas dispersion assembly 200 of the present utility model includes a semi-arcuate outer dispersion shroud 201 and a semi-arcuate inner dispersion shroud 202; wherein, outer dispersion cover 201 and dispersion cover 202 all play the effect of dispersing the gas that comes out from one end of intake pipe 101, avoid coming out from one end of intake pipe 101 to lead to the fact the impact to humidity transducer 300's sensing surface, and then ensured humidity transducer 300's detection sensitivity and the accuracy of testing result, and then prolonged humidity transducer 300's life.
Specifically, the outer dispersion cover 201 is sleeved outside the inner dispersion cover 202, a cavity is formed between the outer dispersion cover 201 and the inner dispersion cover 202, a plurality of first dispersion holes 2011 are uniformly formed in the outer dispersion cover 201, a plurality of second dispersion holes 2021 are uniformly formed in the inner dispersion cover 202, the plurality of second dispersion holes 2021 are in one-to-one correspondence with the plurality of first dispersion holes 2011, and the open end of the inner dispersion cover 202 faces the sensing surface of the humidity sensor 300. The moisture-containing gas from one end of the air inlet pipe 101 is firstly dispersed through the plurality of first dispersion holes 2011 on the outer dispersion cover 201 and then enters the cavity, the cavity plays a role of buffering the flow rate of the moisture-containing gas, and the moisture-containing gas in the cavity is sprayed onto the sensing surface of the humidity sensor 300 after being dispersed again through the plurality of second dispersion holes 2021 on the dispersion cover 202, so that the impact force of the moisture-containing gas on the sensing surface of the humidity sensor 300 is reduced, the sensitivity of the sensing surface of the humidity sensor 300 and the accuracy of the detection result of the humidity sensor 300 are ensured, and the service life of the humidity sensor 300 is further prolonged.
In some embodiments, referring to fig. 2, the other end of the extraction tube 402 and one end of the intake tube 101 in the present utility model communicate with opposite sides of the protective case 100. Because the sensing surface of the humidity sensor 300 is close to the gas dispersing component 200, and the gas dispersing component 200 is close to one end of the gas inlet pipe 101, the exhaust pipe 402 and the gas inlet pipe 101 are respectively communicated with two opposite sides of the protective housing 100, so that the humidity-containing gas enters the protective housing 100 and is rapidly pumped out of the protective housing 100 after being detected by the humidity sensor 300, and the humidity sensor 300 can detect the humidity in the humidity-containing gas and simultaneously prevent the humidity-containing gas from staying in the protective housing 100 for a long time, thereby improving the detection sensitivity of the humidity sensor 300.
In some embodiments, referring to fig. 2, a plurality of branch pipes 403 are connected to a pipe body of the exhaust pipe 402 outside the protection shell 100, and one ends of the plurality of branch pipes 403, which are far from the air inlet pipe 101, respectively penetrate uniformly and extend into the protection shell 100. Wherein, a plurality of lateral pipes 403 are in order to make the suction distribution of air pump 401 even, provide the suction of a plurality of lateral pipes 403 through air pump 401 for the moisture-containing gas that waits to detect outside the protective housing 100 gets into the protective housing 100 fast, outside the protective housing 100 is discharged fast again after humidity sensor 300 detects, has further avoided moisture-containing gas to stay in the protective housing 100 for a long time, has improved humidity sensor 300's detection sensitivity.
In some embodiments, referring to fig. 4, a plurality of water absorbing strips 102 are disposed in the protective case 100 of the present utility model, and the plurality of water absorbing strips 102 are disposed on the inner wall of the protective case 100 away from the sensing surface of the humidity sensor 300. The water absorbing strip 102 may be made of water absorbing resin, polyvinyl alcohol (PVA) and other materials, when the moisture-containing gas passes through the sensing surface of the humidity sensor 300, the humidity sensor 300 detects the moisture content in the gas, the moisture-containing gas passes through the humidity sensor 300 and is pumped out of the protective housing 100 through the pumping tube 402 and the air pump 401, and the water absorbing strip 102 absorbs the moisture in the moisture-containing gas which is not completely pumped out of the protective housing 100, so that the humidity sensor 300 is kept in a dry state except for the detection time, the detection sensitivity of the humidity sensor 300 and the accuracy of the detection result are ensured, and the service life of the humidity sensor 300 is prolonged.
In some embodiments, referring to fig. 1, the bottom of the protective case 100 in the present utility model is provided with a plurality of support bars 103, the top end of each support bar 103 is disposed on the bottom surface of the protective case 100, and the bottom end of each support bar 103 is disposed on the reference surface. The support rods 103 are arranged on the bottom surface of the protective shell 100 at equal intervals, so as to ensure the support stability of the support rods 103, and the number of the support rods 103 can be set according to the size of the protective shell 100. In addition, the reference surface refers to a support surface with which the bottom end of the support rod 103 is in contact when detecting the moisture content in the gas.
In some embodiments, referring to fig. 1, the plurality of support rods 103 in the present utility model are all motorized telescopic rods. The electric telescopic rod can realize free adjustment of the height of the supporting rod 103, and not only can the height of the supporting rod 103 be adjusted according to the position of the gas to be detected, so that the moisture content detection device provided by the utility model can be suitable for detecting the moisture content in the gas at different heights, but also the height of the supporting rod 103 can be conveniently adjusted.
In some embodiments, referring to fig. 1, the bottom end of each support bar 103 in the present utility model is provided with a universal wheel 1031. According to the position of the moisture-containing gas to be detected, the moisture detection device can be moved to the required position only by moving the universal wheel 1031, so that the position movement of the moisture detection device is more convenient, and the movement of the moisture detection device is more time-saving and labor-saving.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate that; the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (8)
1. A moisture content detection device, characterized by comprising a protective shell (100), a gas dispersion assembly (200), a humidity sensor (300) and a pumping assembly (400);
an air inlet pipe (101) is communicated with the protective shell (100), and one end of the air inlet pipe (101) penetrates through and stretches into the protective shell (100);
the gas dispersing assembly (200) is arranged in the protective shell (100) and is close to one end of the gas inlet pipe (101);
the humidity sensor (300) is arranged in the protective shell (100), and the sensing surface of the humidity sensor (300) is close to the gas dispersing component (200); the air extraction assembly (400) comprises an air pump (401) and an air extraction pipe (402);
the air pump (401) is arranged on the outer top wall of the protective shell (100), an air suction port of the air pump (401) is communicated with one end of the air suction pipe (402), and the other end of the air suction pipe (402) penetrates through and stretches into the protective shell (100).
2. The moisture content detection apparatus as claimed in claim 1, wherein the gas dispersion assembly (200) comprises a semi-arcuate outer dispersion mantle (201) and a semi-arcuate inner dispersion mantle (202);
the outer dispersing cover (201) is sleeved outside the dispersing cover (202), a cavity is formed between the outer dispersing cover (201) and the dispersing cover (202), a plurality of first dispersing holes (2011) are uniformly formed in the outer dispersing cover (201), a plurality of second dispersing holes (2021) are uniformly formed in the dispersing cover (202), the second dispersing holes (2021) correspond to the first dispersing holes (2011) one by one, and the opening end of the dispersing cover (202) faces the sensing surface of the humidity sensor (300).
3. The moisture content detecting device according to claim 1, wherein the other end of the air extraction pipe (402) and one end of the air intake pipe (101) communicate on opposite sides of the protective case (100).
4. A moisture content detecting device according to claim 3, wherein the air extraction pipe (402) is located on the pipe body outside the protective housing (100) and is communicated with a plurality of branch pipes (403), and one ends of the plurality of branch pipes (403) far away from the air inlet pipe (101) respectively penetrate uniformly and extend into the protective housing (100).
5. The moisture content detection apparatus according to claim 1, wherein a plurality of water absorbing strips (102) are provided in the protective case (100), and a plurality of sensing surfaces of the water absorbing strips (102) away from the humidity sensor (300) are provided on an inner wall of the protective case (100).
6. The moisture content detecting device according to any one of claims 1 to 5, wherein a plurality of support rods (103) are provided at the bottom of the protective case (100), the top end of each support rod (103) is provided on the bottom surface of the protective case (100), and the bottom end of each support rod (103) is provided on a reference surface.
7. The moisture content detecting device according to claim 6, wherein the plurality of support rods (103) are each an electric telescopic rod.
8. The moisture content detecting device according to claim 6, wherein a bottom end of each of the support rods (103) is provided with a universal wheel (1031).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321002484.4U CN219935408U (en) | 2023-04-28 | 2023-04-28 | Moisture content detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321002484.4U CN219935408U (en) | 2023-04-28 | 2023-04-28 | Moisture content detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219935408U true CN219935408U (en) | 2023-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321002484.4U Active CN219935408U (en) | 2023-04-28 | 2023-04-28 | Moisture content detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219935408U (en) |
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2023
- 2023-04-28 CN CN202321002484.4U patent/CN219935408U/en active Active
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