CN112067750B - Probe capable of dehumidifying and detecting gas and novel gas detector - Google Patents
Probe capable of dehumidifying and detecting gas and novel gas detector Download PDFInfo
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- CN112067750B CN112067750B CN202010947537.4A CN202010947537A CN112067750B CN 112067750 B CN112067750 B CN 112067750B CN 202010947537 A CN202010947537 A CN 202010947537A CN 112067750 B CN112067750 B CN 112067750B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
- G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure, temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0006—Calibrating gas analysers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention provides a probe capable of detecting gas by dehumidification and a novel gas detector, which solve the problem that the humidity of detected gas can influence the detection precision during gas detection. The invention comprises a probe shell, wherein the top of the probe shell is provided with an opening, the opening at the top of the probe shell is provided with a waterproof and breathable film, the middle part of the probe shell is provided with a molecular sieve film, and the molecular sieve film can only pass through water molecules and gas molecules with molecular volumes smaller than that of the water molecules; the inner space of the probe shell is divided into a detection space and a water absorption space by a molecular sieve membrane, a gas-sensitive detection body and a temperature sensor probe are arranged on the wall body of the detection space, and replaceable water absorption substances are arranged in the water absorption space, wherein the water absorption substances are substances which only absorb water and do not react with the detected gas; the lower part of the probe shell is provided with a structure for replacing the water absorbing substance.
Description
Technical Field
The invention relates to the technical field of gas detection, in particular to a probe capable of detecting gas in a dehumidifying manner and a novel gas detector.
Background
In the gas detection application in the industrial, agricultural and civil fields, when the sensors such as semiconductors, catalysis, infrared transmission and PID are used for detecting the gas concentration, the accuracy of the detected gas is greatly affected by the ambient temperature and humidity, the temperature and humidity sensors are built in the detection device in the traditional method, the temperature and humidity compensation is carried out on the detection values of the sensors according to the acquired temperature and humidity values, and as the temperature and humidity curves of each sensor are different, the compensation effect can be affected by the consistency of the sensors, if the temperature and humidity curves of each sensor are independently compensated, and the cost is too great. In order to solve the problem of temperature and humidity compensation, a large number of experiments are needed to obtain the temperature and humidity response curve of the sensor, and even so, the compensation effect is poor.
The conventional probe structure of the current gas detector is basically provided with a waterproof and breathable film for reducing the humidity of the detected gas, but in actual use, the minimum passing object which can be prevented by the waterproof and breathable film is 0.02 micron, the water vapor is composed of water vapor molecules, and the diameter of the water vapor molecules is about: 0.0004 microns, the waterproof breathable membrane is impermeable to water vapor. Therefore, the waterproof breathable film can only filter liquid water and small water drops in the detected gas, and has no effect on gaseous water vapor basically, so that the detected gas entering the probe shell still contains certain humidity, and the detection precision of the gas-sensitive detector is influenced.
Disclosure of Invention
In order to solve the problem that the humidity of the detected gas can influence the detection precision when the gas is detected in the background technology, the invention provides a probe capable of detecting the gas in a dehumidifying way and a novel gas detector.
The technical scheme of the invention is as follows: the probe capable of dehumidifying and detecting gas comprises a probe shell, wherein an opening is formed in the top of the probe shell, a waterproof and breathable film is arranged at the opening at the top of the probe shell, a molecular sieve film is arranged in the middle of the probe shell, and the molecular sieve film can only pass through water molecules and gas molecules with molecular volumes smaller than that of the water molecules; the inner space of the probe shell is divided into a detection space and a water absorption space by a molecular sieve membrane, a gas-sensitive detection body and a temperature sensor probe are arranged on the wall body of the detection space, and replaceable water absorption substances are arranged in the water absorption space, wherein the water absorption substances are substances which only absorb water and do not react with the detected gas; the lower part of the probe shell is provided with a structure for replacing the water absorbing substance.
The water absorbing substance is liquid unsaturated salt solution, alkali solution or acid solution; or the water absorbing material is solid salt or solid alkali.
The lower part of the probe shell is provided with a hole for replacing liquid water-absorbing substances, and the hole is sealed by adopting a detachable plug; or the probe shell comprises an upper probe shell and a lower probe shell, and the upper probe shell is in threaded connection with the lower probe shell; the waterproof and breathable membrane is arranged at the top of the upper probe shell, the molecular sieve membrane is arranged at the lower part of the upper probe shell, the lower probe shell is designed to be an upper opening, and the water absorbing substance is arranged in the lower probe shell.
The novel gas detector comprises a gas detector body, wherein a probe is arranged at the top of the gas detector body, the probe comprises a probe shell, an opening is formed in the top of the probe shell, a waterproof and breathable film is arranged at the opening at the top of the probe shell, a molecular sieve film is arranged in the middle of the probe shell, and the molecular sieve film can only pass through water molecules and gas molecules with molecular volumes larger than those of the water molecules; the inner space of the probe shell is divided into a detection space and a water absorption space by a molecular sieve membrane, a gas-sensitive detection body and a temperature sensor probe are arranged on the wall body of the detection space, and replaceable water absorption substances are arranged in the water absorption space, wherein the water absorption substances are substances which only absorb water and do not react with the detected gas; the lower part of the probe shell is provided with a structure for replacing the water absorbing substance.
The water absorbing substance is liquid unsaturated salt solution, alkali solution or acid solution; or the water absorbing material is solid salt or solid alkali.
The lower part of the probe shell is provided with a hole for replacing liquid water-absorbing substances, and the hole is sealed by adopting a detachable plug; or the probe shell comprises an upper probe shell and a lower probe shell, and the upper probe shell is in threaded connection with the lower probe shell; the waterproof and breathable membrane is arranged at the top of the upper probe shell, the molecular sieve membrane is arranged at the lower part of the upper probe shell, the lower probe shell is designed to be an upper opening, and the water absorbing substance is arranged in the lower probe shell.
A PH value sensor probe for detecting the current PH value of the water absorbing substance is embedded at the bottom of the shell; the gas detector body is internally provided with a PH value sensor body matched with the PH value sensor probe.
The top of the gas detector body is provided with a telescopic pipe, the top of the telescopic pipe is provided with a mounting head, the center of the mounting head is provided with a wiring hole I communicated with the telescopic pipe, the middle part of the mounting head is provided with a thread groove, the bottom of the lower shell is provided with a thread head, the thread head is in threaded connection with the thread groove, a cross-shaped wiring hole II is arranged in the thread head, a vertical slotted hole of the wiring hole II corresponds to the PH value sensor probe and the wiring hole I up and down, the middle part of the mounting head is provided with a horizontal left wiring hole III and a horizontal slotted hole of the wiring hole II; the connecting lead of the gas-sensitive detector enters the gas detector body from the wiring hole III, the horizontal slotted hole of the wiring hole II, the wiring hole I and the telescopic pipe on the right side; the connecting lead of the PH value sensor probe enters the gas detector body from the vertical slotted hole of the wiring hole II, the wiring hole I and the telescopic pipe; the gas detector body is internally provided with a temperature sensor body, and a connecting wire of the temperature sensor probe enters the gas detector body from a left wiring hole III, a horizontal slot hole of a wiring hole II, a wiring hole I and a telescopic pipe to be connected with the temperature sensor body.
The invention has the advantages that: when the invention is used, when the detected gas enters the detection space through the waterproof breathable film, the liquid small water drops are filtered by the waterproof filtering film, and the residual detected gas and gaseous water vapor molecules enter the detection space; this time division is two cases: (1) The volume of the detected gas molecules is smaller than that of the water vapor molecules, and at the moment, the detected gas and the water vapor molecules can simultaneously pass through the molecular sieve membrane and enter the water absorption space; through the detected gas predicted in advance, the proper water absorbing substance is selected, at the moment, the water absorbing substance needs to be selected to absorb only, but not to react with salt, acid or alkali of the detected gas, and the reaction product does not react with the detected gas, so that the water absorbing substance or the reaction product does not react with the detected gas when the detected gas is dehydrated, and the measurement accuracy is not affected; (2) The volume of the detected gas molecules is larger than that of the water vapor molecules, only the water vapor molecules can pass through the molecular sieve membrane and enter the water absorption space, and the water absorption material can be selected to be the same as that of the water absorption material (1), can also be selected to react with water but not generate gas, or the volume of the gas molecules generated by the reaction with water is larger than that of the gaseous water molecules, so that the gas molecules cannot pass through the molecular sieve membrane and enter the detection space, and the measurement accuracy of the gas-sensitive detector is influenced.
The gas sensor probe arranged in the detection space directly measures the detected gas in the detection space, and can most directly monitor the temperature of the detected gas so as to carry out accurate temperature compensation.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the main structure of a probe capable of dehumidifying probe gas according to the present invention;
FIG. 2 is a schematic diagram of the main structure of an embodiment of the novel gas detector of the present invention;
FIG. 3 is a schematic view of the probe and its connection in FIG. 2;
FIG. 4 is a schematic view of the probe of FIG. 2;
in the figure, 1, a probe shell, 2, an upper probe shell, 201, a detection space, 3, a lower probe shell, 301, a water absorption space, 4, a waterproof and breathable film, 5, a gas-sensitive detector, 6, a molecular sieve film, 7, a water absorption substance, 8, a screw thread head, 9, a PH value sensor probe, 10, an installation head, 11, a telescopic pipe, 12, a gas detector body, 13 and a temperature sensor probe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
An embodiment 1 of a probe capable of dehumidifying probe gas, as shown in fig. 1, comprises a probe housing 1, wherein the probe housing 1 comprises an upper probe housing 2 and a lower probe housing 3, and the upper probe housing 2 and the lower probe housing 3 are in threaded connection; the top of the probe shell 2 is designed as an opening, a waterproof and breathable film 4 is arranged at the opening of the top of the probe shell 2, a molecular sieve film 6 is arranged at the lower part of the probe shell 2, and the molecular sieve film 6 can only pass through water molecules and gas molecules with molecular volumes smaller than the water molecules; the molecular sieve membrane 6 has a function of blocking leakage of the water-absorbent material 7 into the detection space 201, as well as ventilation in the present structure.
The inner space of the probe housing 1 is divided into a detection space 201 and a water absorption space 301 by the molecular sieve membrane 6, the lower probe housing 3 is designed to be an upper opening, and the water absorption substance 7 is contained in the lower probe housing 3. The wall of the detection space 201 is provided with a gas sensitive detector 5 and a temperature sensor probe 13, the water absorbing space 301 is internally provided with a replaceable water absorbing substance 7, the water absorbing substance 7 is a substance which only absorbs water and does not react with the detected gas, the water absorbing substance 7 can be a liquid unsaturated salt solution, an alkali solution or an acid solution, and the water absorbing substance 7 can also be a solid salt or a solid alkali.
Working principle: when the invention is used, when the detected gas enters the detection space through the waterproof breathable film, the liquid small water drops are filtered by the waterproof filtering film, and the residual detected gas and gaseous water vapor molecules enter the detection space; this time division is two cases: (1) The volume of the detected gas molecules is smaller than that of the water vapor molecules, and at the moment, the detected gas and the water vapor molecules can simultaneously pass through the molecular sieve membrane and enter the water absorption space; through the detected gas predicted in advance, the proper water absorbing substance is selected, at the moment, the water absorbing substance needs to be selected to absorb only, but not to react with salt, acid or alkali of the detected gas, and the reaction product does not react with the detected gas, so that the water absorbing substance or the reaction product does not react with the detected gas when the detected gas is dehydrated, and the measurement accuracy is not affected; (2) The volume of the detected gas molecules is larger than that of the water vapor molecules, only the water vapor molecules can pass through the molecular sieve membrane and enter the water absorption space, and the water absorption material can be selected to be the same as that of the water absorption material (1), can also be selected to react with water but not generate gas, or the volume of the gas molecules generated by the reaction with water is larger than that of the gaseous water molecules, so that the gas molecules cannot pass through the molecular sieve membrane and enter the detection space, and the measurement accuracy of the gas-sensitive detector is influenced. The gas sensor probe arranged in the detection space directly measures the detected gas in the detection space, and can most directly monitor the temperature of the detected gas so as to carry out accurate temperature compensation.
In the embodiment 2 of the probe capable of dehumidifying and detecting the gas, the lower part of the probe shell 1 is provided with a hole for replacing the liquid water-absorbing substance 7, and the hole is sealed by adopting a detachable plug; the water absorbing material 7 can also be solid salt or solid alkali. Other structures and operation principles are the same as those of the embodiment 1 of the probe capable of detecting the gas by the dehumidification.
An embodiment 1 of a novel gas detector capable of detecting gas in a dehumidifying manner is shown in fig. 2, 3 and 4, and comprises a gas detector body 12 and a probe, wherein a telescopic pipe 11 is arranged at the top of the gas detector body 12, a mounting head 10 is arranged at the top of the telescopic pipe 11, a wiring hole I communicated with the telescopic pipe 11 is formed in the center of the mounting head 10, and a thread groove is formed in the middle of the mounting head 10. The telescopic tube 11 is mainly used for pushing the probe to move so as to adapt to a narrow detection environment. The probe shell 1 comprises an upper probe shell 2 and a lower probe shell 3, and the upper probe shell 2 and the lower probe shell 3 are in threaded connection; the top of the probe shell 2 is designed as an opening, a waterproof and breathable film 4 is arranged at the opening of the top of the probe shell 2, a molecular sieve film 6 is arranged at the lower part of the probe shell 2, and the molecular sieve film 6 can only pass through water molecules and gas molecules with molecular volumes smaller than the water molecules; the molecular sieve membrane 6 has a function of blocking leakage of the water-absorbent material 7 into the detection space 201, as well as ventilation in the present structure.
The inner space of the probe housing 1 is divided into a detection space 201 and a water absorption space 301 by the molecular sieve membrane 6, the lower probe housing 3 is designed to be an upper opening, and the water absorption substance 7 is contained in the lower probe housing 3. The wall of the detection space 201 is provided with a gas sensitive detector 5 and a temperature sensor probe 13, the water absorbing space 301 is internally provided with a replaceable water absorbing substance 7, the water absorbing substance 7 is a substance which only absorbs water and does not react with the detected gas, the water absorbing substance 7 can be a liquid unsaturated salt solution, an alkali solution or an acid solution, and the water absorbing substance 7 can also be a solid salt or a solid alkali. A PH sensor probe 9 for detecting the current PH of the water absorbing material 7 is embedded in the bottom of the housing 1. The gas detector body 12 is internally provided with a PH value sensor body matched with the PH value sensor probe 9. The PH value of the water absorbing material is monitored in real time through the PH value sensor probe 9 so as to judge the concentration of the solution, and further judge whether the current water absorbing capacity meets the requirement or not and whether the water absorbing material needs to be replaced or not.
The bottom of the lower shell 3 is provided with a thread head 8, the thread head 8 is in threaded connection with a thread groove, a cross-shaped wiring hole II is arranged in the thread head 8, a vertical slot hole of the wiring hole II corresponds to the PH value sensor probe 9 and the wiring hole I up and down, the middle part of the mounting head 10 is provided with a horizontal left wiring hole III and a horizontal right wiring hole III, and the wiring hole III corresponds to a horizontal slot hole of the wiring hole II; the connecting wires of the gas-sensitive detector 5 enter the gas detector body 12 from the wiring hole III, the horizontal slotted hole of the wiring hole II, the wiring hole I and the telescopic pipe 10 on the right side; the connecting wires of the PH value sensor probe 9 enter the gas detector body 12 from the vertical slotted hole of the wiring hole II, the wiring hole I and the telescopic pipe 10; the gas detector body 12 is internally provided with a temperature sensor body, and a connecting wire of the temperature sensor probe 13 enters the gas detector body 12 from the left wiring hole III, the horizontal slot hole of the wiring hole II, the wiring hole I and the telescopic pipe 10 to be connected with the temperature sensor body.
Working principle: when the invention is used, when the detected gas enters the detection space through the waterproof breathable film, the liquid small water drops are filtered by the waterproof filtering film, and the residual detected gas and gaseous water vapor molecules enter the detection space; this time division is two cases: (1) The volume of the detected gas molecules is smaller than that of the water vapor molecules, and at the moment, the detected gas and the water vapor molecules can simultaneously pass through the molecular sieve membrane and enter the water absorption space; through the detected gas predicted in advance, the proper water absorbing substance is selected, at the moment, the water absorbing substance needs to be selected to absorb only, but not to react with salt, acid or alkali of the detected gas, and the reaction product does not react with the detected gas, so that the water absorbing substance or the reaction product does not react with the detected gas when the detected gas is dehydrated, and the measurement accuracy is not affected; (2) The volume of the detected gas molecules is larger than that of the water vapor molecules, only the water vapor molecules can pass through the molecular sieve membrane and enter the water absorption space, and the water absorption material can be selected to be the same as that of the water absorption material (1), can also be selected to react with water but not generate gas, or the volume of the gas molecules generated by the reaction with water is larger than that of the gaseous water molecules, so that the gas molecules cannot pass through the molecular sieve membrane and enter the detection space, and the measurement accuracy of the gas-sensitive detector is influenced. The gas sensor probe arranged in the detection space directly measures the detected gas in the detection space, and can most directly monitor the temperature of the detected gas so as to carry out accurate temperature compensation.
In the embodiment 2 of the novel gas detector capable of detecting the gas by dehumidification, the lower part of the probe shell 1 is provided with a hole for replacing the liquid water-absorbing substance 7, and the hole is sealed by adopting a detachable plug; the water absorbing material 7 can also be solid salt or solid alkali. Other structures and working principles are the same as those of the embodiment 1 of the novel gas detector capable of detecting the gas in a dehumidifying manner.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A probe capable of detecting gas by dehumidification, which is characterized in that: the probe comprises a probe shell (1), wherein an opening is formed in the top of the probe shell (1), a waterproof and breathable film (4) is arranged at the opening at the top of the probe shell (1), a molecular sieve film (6) is arranged in the middle of the probe shell (1), and the molecular sieve film (6) can only pass through water molecules and gas molecules with molecular volumes smaller than those of the water molecules; the inner space of the probe shell (1) is divided into a detection space (201) and a water absorption space (301) by a molecular sieve membrane (6), a gas-sensitive detector (5) and a temperature sensor probe (13) are arranged on the wall body of the detection space (201), a replaceable water absorption substance (7) is arranged in the water absorption space (301), and the water absorption substance (7) is a substance which only absorbs water and does not react with the detected gas; the lower part of the probe shell (1) is provided with a structure for replacing a water absorbing substance (7); the water absorbing substance (7) is solid salt or solid alkali; the lower part of the probe shell (1) is provided with a hole for replacing a water absorbing substance (7), and the hole is sealed by adopting a detachable plug; or the probe shell (1) comprises an upper probe shell (2) and a lower probe shell (3), and the upper probe shell (2) is in threaded connection with the lower probe shell (3); the waterproof breathable film (4) is arranged at the top of the upper probe shell (2), the molecular sieve film (6) is arranged at the lower part of the upper probe shell (2), the lower probe shell (3) is designed as an upper opening, and the water absorbing substance (7) is arranged in the lower probe shell (3).
2. The utility model provides a but novel gas detector of dehumidification detection gas, includes gas detector body (12), and the top of gas detector body (12) is equipped with probe, its characterized in that: the probe comprises a probe shell (1), an opening is formed in the top of the probe shell (1), a waterproof and breathable film (4) is arranged at the opening of the top of the probe shell (1), a molecular sieve film (6) is arranged in the middle of the probe shell (1), and the molecular sieve film (6) can only pass through water molecules and gas molecules with molecular volumes larger than those of the water molecules; the inner space of the probe shell (1) is divided into a detection space (201) and a water absorption space (301) by a molecular sieve membrane (6), a gas-sensitive detector (5) and a temperature sensor probe (13) are arranged on the wall body of the detection space (201), a replaceable water absorption substance (7) is arranged in the water absorption space (301), and the water absorption substance (7) is a substance which only absorbs water and does not react with the detected gas; the lower part of the probe shell (1) is provided with a structure for replacing a water absorbing substance (7); the water absorbing substance (7) is solid salt or solid alkali; the lower part of the probe shell (1) is provided with a hole for replacing a water absorbing substance (7), and the hole is sealed by adopting a detachable plug; or the probe shell (1) comprises an upper probe shell (2) and a lower probe shell (3), and the upper probe shell (2) is in threaded connection with the lower probe shell (3); the waterproof breathable film (4) is arranged at the top of the upper probe shell (2), the molecular sieve film (6) is arranged at the lower part of the upper probe shell (2), the lower probe shell (3) is designed as an upper opening, and the water absorbing substance (7) is arranged in the lower probe shell (3).
3. A novel gas detector for detecting gas by dehumidification as claimed in claim 2, wherein: a PH value sensor probe (9) for detecting the current PH value of the water absorbing substance (7) is embedded at the bottom of the probe shell (1); the gas detector body (12) is internally provided with a PH value sensor body matched with the PH value sensor probe (9).
4. A novel gas detector for detecting gas by dehumidification as claimed in claim 3, wherein: the gas detector comprises a gas detector body (12), and is characterized in that an extension pipe (11) is arranged at the top of the gas detector body (12), a mounting head (10) is arranged at the top of the extension pipe (11), a wiring hole I communicated with the extension pipe (11) is arranged in the center of the mounting head (10), a thread groove is formed in the middle of the mounting head (10), a thread head (8) is arranged at the bottom of a lower probe shell (3), the thread head (8) is in threaded connection with the thread groove, a cross wiring hole II is formed in the thread head (8), a vertical slot hole of the wiring hole II corresponds to a PH value sensor probe (9) and the wiring hole I up and down, a horizontal left wiring hole III and a horizontal slot hole III correspond to the wiring hole II; the connecting lead of the gas-sensitive detector (5) enters the gas detector body (12) from the wiring hole III, the horizontal slotted hole of the wiring hole II, the wiring hole I and the telescopic pipe (11) on the right side; connecting wires of the PH value sensor probe (9) enter the gas detector body (12) from the vertical slotted hole of the wiring hole II, the wiring hole I and the telescopic pipe (11); the gas detector body (12) is internally provided with a temperature sensor body, and a connecting wire of the temperature sensor probe (13) enters the gas detector body (12) from a left wiring hole III, a horizontal slot hole of a wiring hole II, a wiring hole I and a telescopic pipe (11) to be connected with the temperature sensor body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010947537.4A CN112067750B (en) | 2020-09-10 | 2020-09-10 | Probe capable of dehumidifying and detecting gas and novel gas detector |
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| CN202010947537.4A CN112067750B (en) | 2020-09-10 | 2020-09-10 | Probe capable of dehumidifying and detecting gas and novel gas detector |
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| CN112067750B true CN112067750B (en) | 2023-06-16 |
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