CN218673735U - Granary temperature and humidity sensor with protective structure - Google Patents
Granary temperature and humidity sensor with protective structure Download PDFInfo
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- CN218673735U CN218673735U CN202222753737.3U CN202222753737U CN218673735U CN 218673735 U CN218673735 U CN 218673735U CN 202222753737 U CN202222753737 U CN 202222753737U CN 218673735 U CN218673735 U CN 218673735U
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- channel
- humidity sensor
- temperature
- passageway
- connecting pipe
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- 230000001681 protective effect Effects 0.000 title claims abstract description 11
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims abstract description 109
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims abstract description 53
- 238000010521 absorption reaction Methods 0.000 claims abstract description 47
- 239000004020 conductor Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 22
- 238000005259 measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000002940 palladium Chemical class 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000003958 fumigation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model provides a granary temperature and humidity sensor with protective structure, relate to temperature and humidity sensor technical field, the tee bend connecting pipe is equipped with two, adjacent tee bend connecting pipe top is connected and is equipped with the second and absorbs the passageway, adjacent tee bend connecting pipe bottom is connected and is equipped with second direction passageway, the inside embedding of second absorption passageway is equipped with phosphine and absorbs the box, a tee bend connecting pipe side is connected and is equipped with first passageway, another tee bend connecting pipe side is connected and is equipped with the third passageway, third channel connection is equipped with the fourth passageway, the inside temperature and humidity sensor that is equipped with of fourth passageway, phosphine concentration detector carries out phosphine concentration detection in the gas, let in two kinds of modes after directly letting in or absorbing according to the numerical value selection of concentration, thereby guarantee that phosphine concentration in the gas of temperature and humidity sensor surface detection is not enough to produce corrosion damage to temperature and humidity sensor surface, thereby prolong temperature and humidity sensor's life, protect temperature and humidity sensor.
Description
Technical Field
The utility model relates to a temperature and humidity sensor technical field especially relates to a granary temperature and humidity sensor with protective structure.
Background
Various insect pests and the like are bred easily in the storage process of grains, the main current insect pest control measure is fumigation of phosphine gas, the insecticidal effect is good, the use is convenient, but the phosphine gas is extremely toxic gas, and acid liquid can be generated by combining the phosphine gas with air water vapor to corrode metal elements in instruments, so that the instruments can be damaged.
Most of the temperature and humidity sensors on the market adopt metals which are coated with some anticorrosive materials on the surface or are difficult to corrode by using some corrosive gases for electronic elements, but the methods can only achieve the effect of prolonging the service life of the temperature and humidity sensor, and cannot prevent the instruments from being corroded fundamentally.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defect that the surface of the existing temperature and humidity sensor is easy to corrode, and providing a granary temperature and humidity sensor with a protection structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the device comprises a phosphine concentration detector, three-way connecting pipes and a temperature and humidity sensor, wherein the three-way connecting pipes are provided with two parts, the two parts are adjacent to each other, a second absorption channel is connected to the top end of each three-way connecting pipe, a second guide channel is connected to the bottom end of each three-way connecting pipe, a phosphine absorption box is embedded into each second absorption channel, a first channel is connected to the side surface of each three-way connecting pipe, a third channel is connected to the side surface of each three-way connecting pipe, a fourth channel is connected to the side surface of each third connecting pipe, the temperature and humidity sensor is arranged inside each fourth channel, first relay switches are arranged at the end parts of the second guide channels and the end parts of the second absorption channels, and second relay switches are arranged inside the third channels.
Preferably, the first relay switch is located at one end of the second guide channel and the second absorption channel close to the first channel, the second relay switch is located at one end of the third channel close to the three-way connecting pipe, and the adjacent first relay switches are controlled independently.
Preferably, the end of the three-way connecting pipe is electrically connected with the first channel, the second guide channel, the second absorption channel and the third channel, and the joints of the three-way connecting pipe and the first channel, the second guide channel, the second absorption channel and the third channel are sealed.
Preferably, the third channel and the fourth channel are integrally formed and connected, and the phosphine concentration detector is electrically connected with the first relay switch and the second relay switch.
Preferably, the outer wall of the hydrogen phosphide absorption box is bonded with the inner wall of the second absorption channel, and the temperature and humidity sensor is bonded with the inside of the fourth channel.
Preferably, the first channel, the second guide channel, the second absorption channel, the third channel and the fourth channel are all made of hard temperature-conducting materials through injection molding.
Advantageous effects
The utility model discloses in, adopt the temperature and humidity sensor outside to set up a plurality of passageways and carry out gas direction and use, carry out gaseous phosphine concentration detection through at the inside phosphine concentration detector that sets up of pipeline, choose directly to let in or let in the dual mode after absorbing according to the numerical value of concentration to guarantee that the phosphine concentration in the gas of temperature and humidity sensor surface detection is not enough to produce corrosion damage to the temperature and humidity sensor surface, thereby prolong temperature and humidity sensor's life, protect temperature and humidity sensor.
The utility model discloses in, the adoption detects and absorbs the inside phosphine concentration that gets into in the gas of granary that temperature and humidity sensor detected, makes the reduction of phosphine concentration in the gas that temperature and humidity sensor detected, thereby prevents that phosphine and vapor reaction from giving out the heat and leading to the phenomenon appearance that the air temperature that detects rises to reduce temperature and humidity measurement error, improve measurement accuracy.
Drawings
Fig. 1 is a front sectional view of the present invention;
FIG. 2 is an internal structural view of the present invention;
fig. 3 is a schematic perspective view of the present invention;
fig. 4 is a diagram of the split structure of the present invention.
Illustration of the drawings:
1. a first channel; 2. a phosphine concentration detector; 3. a second guide channel; 4. a second absorption channel; 5. a hydrogen phosphide absorption cassette; 6. a first relay switch; 7. a three-way connecting pipe; 8. a third channel; 9. a fourth channel; 10. a temperature and humidity sensor; 11. a second relay switch.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1-4, a granary temperature and humidity sensor with protective structure, including phosphine concentration detector 2, three way connection pipe 7 and temperature and humidity sensor 10, three way connection pipe 7 is equipped with two, three way connection pipe 7's purpose is in order to connect the space between the adjacent passageway, keep lining up between each passageway, whole device is when carrying out the inside use of granary, with the nanometer glue that whole device accessible outside set up, support etc. and granary inside wall fix, first passageway 1 tip keeps lining up, be convenient for the inside gas of granary to get into, adjacent three way connection pipe 7 top is connected and is equipped with second absorption passageway 4, adjacent three way connection pipe 7 bottom is connected and is equipped with second guide channel 3, the inside embedding of second absorption passageway 4 is equipped with phosphine absorption box 5, a three way connection pipe 7 side is connected and is equipped with first passageway 1, another three way connection pipe 7 side is connected and is equipped with third passageway 8, third passageway 8 is connected and is equipped with fourth passageway 9, the inside temperature and humidity sensor 10 that is equipped with temperature and humidity sensor 10 of fourth passageway 9, the inside phosphine absorption box 3 tip of second guide passageway and the second absorption passageway 4 tip all are equipped with first relay 6, the inside of second absorption switch 11 of the second absorption passageway 4, the second relay 4 tip and the second absorption switch that the inside the phosphine absorption switch that the phosphorization switch that the second absorbs the sponge piece that the pipeline 4 detects, the sponge hydrogen concentration detector is placed, the inner of the phosphine absorption of the second switch 11, the sponge piece that the inner detection of the phosphorization switch that the inner control switch is equipped with the phosphine absorption switch that the inner.
When the whole device is used for detecting the temperature and humidity in the granary, the whole device is divided into two conditions, one condition is that the content of phosphine in the air is lower than a set detection threshold value after the air entering the granary is detected by the phosphine concentration detector 2, the first relay switch 6 at the end part of the second guide channel 3 is opened at the time, the first relay switch 6 in the second absorption channel 4 is kept closed, the second relay switch 11 in the third channel 8 is synchronously opened, the gas enters the granary along the second guide channel 3 and enters the fourth channel 9 through the third channel 8, and the gas is in contact with the position of the temperature and humidity sensor 10 in the fourth channel 9, so that the normal detection of the temperature and humidity parameters in the air is realized.
The other is that after the entering air is detected by the phosphine concentration detector 2, the phosphine content in the air is higher than a set detection threshold, at this time, the first relay switch 6 at the end of the second guide channel 3 is closed, the first relay switch 6 in the second absorption channel 4 is opened, the second relay switch 11 in the third channel 8 is kept closed, the gas enters along the second absorption channel 4 and is absorbed by the phosphine absorption box 5 in the second absorption channel 4, because the second relay switch 11 in the third channel 8 is closed, the air cannot enter the fourth channel 9 for detection at this time, the treated gas enters the third channel 8 after the second relay switch 11 in the third channel 8 is opened, enters the fourth channel 9 through the third channel 8 and is in contact with the position of the temperature and humidity sensor 10 in the fourth channel 9, so that the normal detection of the temperature and humidity parameters in the air is realized.
In order to ensure the control consistency of the whole device, a first relay switch 6 is arranged at one end of a second guide channel 3 and a second absorption channel 4 close to a first channel 1, a second relay switch 11 is arranged at one end of a third channel 8 close to a three-way connecting pipe 7, adjacent first relay switches 6 are mutually independently controlled, the first relay switch 6 and the second relay switch 11 are conveniently opened and closed, the communication of the channels is conveniently controlled according to the flow direction, the end part of the three-way connecting pipe 7 is electrically connected with the first channel 1, the second guide channel 3, the second absorption channel 4 and the third channel 8, and the joints of the three-way connecting pipe 7 and the first channel 1, the second guide channel 3, the second absorption channel 4 and the third channel 8 are sealed, the tightness of the whole device is guaranteed, the third channel 8 and the fourth channel 9 are connected in an integrated forming mode, the phosphine concentration detector 2 is electrically connected with the first relay switch 6 and the second relay switch 11, the outer wall of the phosphine absorption box 5 is bonded with the inner wall of the second absorption channel 4, the temperature and humidity sensor 10 is bonded with the inside of the fourth channel 9, the installation and disassembly work of the phosphine absorption box 5 and the phosphine concentration detector 2 is facilitated, the first channel 1, the second guide channel 3, the second absorption channel 4, the third channel 8 and the fourth channel 9 are made of hard temperature-conducting materials in an injection molding mode, the temperature and humidity sensor 10 can directly detect the temperature of the inner space of the granary conveniently, and the problem that the temperature and humidity sensor 10 is not high in temperature detection precision due to the fact that the channels do not conduct heat is avoided.
The second embodiment is as follows:
referring to fig. 1-4, the solution inside the phosphine absorption box 5 may be specifically an aqueous solution prepared from a copper salt or a ferric salt, and a little noble metal palladium salt may be properly added as a catalyst, so as to effectively remove phosphine gas, according to the method provided by chinese patent CN101045195A, an aqueous solution of copper nitrate is adopted, a proper amount of palladium salt is added as a catalyst, air containing phosphine is introduced into the solution, and the solution is operated for 20 hours at 20 ℃, so that the concentration of outlet phosphine is 0, and the removal efficiency is very high.
The third concrete example:
referring to fig. 1-4, when the whole temperature and humidity sensor 10 is used, in order to ensure normal feedback use of detection parameters, a WIFI/4G/5G module can be embedded in the temperature and humidity sensor 10, and an electronic screen is added on an external instrument for displaying, for example: at this time, when the concentration of phosphine is higher than or lower than 1.79%, the temperature and humidity sensor 10 stops/normally works, and the temperature and humidity sensor 10 can send detected temperature and humidity data to the mobile phone end/PC end of the user in real time.
The fourth concrete embodiment:
referring to fig. 1 to 4, the temperature and humidity sensor 10 is only used as a reference, and is a general name of the temperature sensor and the humidity sensor, and in actual use, the temperature sensor and the humidity sensor are installed inside the fourth channel 9 in a split installation manner for detection.
The fifth concrete embodiment:
referring to fig. 1-4, when the phosphine concentration detector 2 is installed with the first channel 1, the outer wall is not completely contacted with the inner wall of the first channel 1, so that the first channel 1 is kept unblocked when the phosphine concentration detector 2 is used for detection, and the detection and the use are convenient when gas flows, meanwhile, the phosphine concentration detector 2 is the existing phosphine concentration detector, the specific working principle is a sensor which is a main component of the detector, a constant voltage electrolysis method principle is applied, the structure is that three electrodes, namely a working electrode, a counter electrode and a reference electrode, are arranged in an electrolytic cell, a certain polarization voltage is applied, the film is separated from the outside, the detected phosphine gas penetrates through the film to reach the working electrode, an oxidation reduction reaction occurs, the sensor has an output current, the current is in direct proportion to the concentration of the detected phosphine gas, the current signal is amplified and then sent to an analog-to-digital converter, the analog quantity is converted into a digital quantity, and then the digital quantity is displayed through a liquid crystal display, so that the shape and the size of the phosphine concentration detector 2 can be selected to be miniature, and be conveniently matched with the size of the first channel 1.
In summary, the following steps:
1. the method comprises the steps that a plurality of channels are arranged outside a temperature and humidity sensor 10 for gas guiding, a phosphine concentration detector 2 is arranged inside a pipeline for detecting the concentration of phosphine in gas, and two modes of direct introduction or introduction after absorption are selected according to the value of the concentration, so that the concentration of phosphine in the gas detected on the surface of the temperature and humidity sensor 10 is not enough to generate corrosion damage on the surface of the temperature and humidity sensor 10, the service life of the temperature and humidity sensor 10 is prolonged, and the temperature and humidity sensor 10 is protected;
2. the adoption detects and absorbs the inside phosphine concentration that gets into in the gas of granary that temperature and humidity sensor 10 detected, makes the reduction of phosphine concentration in the gas that temperature and humidity sensor 10 detected, thereby prevents that phosphine and vapor reaction from giving out heat and leading to the phenomenon appearance that the air temperature that detects rises to reduce humiture measurement error, improve measurement accuracy.
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.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a granary temperature and humidity sensor with protective structure, includes phosphine concentration detector (2), tee junction pipe (7) and temperature and humidity sensor (10), its characterized in that: tee bend connecting pipe (7) are equipped with two, and are adjacent tee bend connecting pipe (7) top is connected and is equipped with second absorption passageway (4), and is adjacent tee bend connecting pipe (7) bottom is connected and is equipped with second guide way (3), the inside embedding of second absorption passageway (4) is equipped with phosphine and absorbs box (5), one tee bend connecting pipe (7) side is connected and is equipped with first passageway (1), another tee bend connecting pipe (7) side is connected and is equipped with third passageway (8), third passageway (8) are connected and are equipped with fourth passageway (9), fourth passageway (9) inside is equipped with temperature and humidity sensor (10), second guide way (3) tip and second absorption passageway (4) tip all are equipped with first relay switch (6), third passageway (8) inside is equipped with second relay switch (11).
2. The granary temperature and humidity sensor with a protective structure according to claim 1, wherein: the first relay switch (6) is located at one end, close to the first channel (1), of the second guide channel (3) and the second absorption channel (4), the second relay switch (11) is located at one end, close to the three-way connecting pipe (7), of the third channel (8), and the adjacent first relay switches (6) are controlled independently.
3. The granary temperature and humidity sensor with a protective structure according to claim 1, wherein: the end part of the three-way connecting pipe (7) is electrically connected with the first channel (1), the second guide channel (3), the second absorption channel (4) and the third channel (8), and the joints of the three-way connecting pipe (7) and the first channel (1), the second guide channel (3), the second absorption channel (4) and the third channel (8) are sealed.
4. The granary temperature and humidity sensor with a protective structure according to claim 1, wherein: the third channel (8) and the fourth channel (9) are integrally connected, and the phosphine concentration detector (2) is electrically connected with the first relay switch (6) and the second relay switch (11).
5. The granary temperature and humidity sensor with a protective structure according to claim 1, wherein: the outer wall of the hydrogen phosphide absorption box (5) is bonded with the inner wall of the second absorption channel (4), and the temperature and humidity sensor (10) is bonded with the inside of the fourth channel (9).
6. The granary temperature and humidity sensor with a protective structure according to claim 1, wherein: the first channel (1), the second guide channel (3), the second absorption channel (4), the third channel (8) and the fourth channel (9) are all made of hard temperature-conducting materials through injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222753737.3U CN218673735U (en) | 2022-10-19 | 2022-10-19 | Granary temperature and humidity sensor with protective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222753737.3U CN218673735U (en) | 2022-10-19 | 2022-10-19 | Granary temperature and humidity sensor with protective structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218673735U true CN218673735U (en) | 2023-03-21 |
Family
ID=85564483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222753737.3U Expired - Fee Related CN218673735U (en) | 2022-10-19 | 2022-10-19 | Granary temperature and humidity sensor with protective structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218673735U (en) |
-
2022
- 2022-10-19 CN CN202222753737.3U patent/CN218673735U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230321 |