CN113189163A - Combined multi-gas detector applied to safety supervision and inspection - Google Patents

Combined multi-gas detector applied to safety supervision and inspection Download PDF

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Publication number
CN113189163A
CN113189163A CN202110592476.9A CN202110592476A CN113189163A CN 113189163 A CN113189163 A CN 113189163A CN 202110592476 A CN202110592476 A CN 202110592476A CN 113189163 A CN113189163 A CN 113189163A
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China
Prior art keywords
gas
bins
bin
safety supervision
module
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CN202110592476.9A
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Chinese (zh)
Inventor
邱利明
刘嘉俊
黄宝进
庄灿宇
李豪
郭冰
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SHENZHEN AMAE CO Ltd
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SHENZHEN AMAE CO Ltd
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Priority to CN202110592476.9A priority Critical patent/CN113189163A/en
Publication of CN113189163A publication Critical patent/CN113189163A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/27—Association of two or more measuring systems or cells, each measuring a different parameter, where the measurement results may be either used independently, the systems or cells being physically associated, or combined to produce a value for a further parameter

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention discloses a combined multi-gas detector applied to safety supervision and inspection.A power supply is used for supplying power to the whole equipment; the host comprises a control module, an air pump and a sampling pipeline, wherein the control module is used for controlling the air pump to work, and the air pump is used for providing power for a gas sample to enter the sampling pipeline to form a sampling airflow; the gas bin module, the gas bin module includes one or more gas bins, when the quantity of gas bin was for exceeding one, one of them gas bin one end and host computer be detachable connection, and also be detachable connection between two adjacent gas bins, can put into one or more electrochemical sensor module in every gas bin, the outer wall department of every gas bin is equipped with inlet nozzle and outlet nozzle, gaseous sample gets into the gas bin from the inlet nozzle to flow from the outlet nozzle, the electrochemical sensor module is used for detecting the gaseous sample that gets into in the gas bin. The combined multi-gas detector is strong in function, low in energy consumption and long in service life and is applied to safety supervision and inspection.

Description

Combined multi-gas detector applied to safety supervision and inspection
Technical Field
The invention relates to the technical field of sampling and early warning of personal toxicants in occupational health, in particular to a combined multi-gas detector which is strong in function, low in energy consumption and long in service life and is applied to safety supervision.
Background
When personal poison of occupational health is sampled, staff often can bear a poison sample thief, samples the operational environment. The sampling device is worn on an individual and moves along with the movement of the individual, and multiple users are required to wear the sampling device in most cases. The sampling pipeline is arranged on the personal breathing belt to simulate the breathing scene of a person. And in the wearing process, the normal work of workers is not influenced.
Different toxic gases exist in different workplaces, and each toxic gas needs to be provided with a corresponding electrochemical sensor for detection. All electrochemical sensors are internally provided with electrolytes, and the electrolytes and corresponding toxic substances in the air are subjected to chemical reaction to detect the toxic substances, and the chemical reaction consumes reactants (electrolytes), so that each electrochemical sensor has a certain service life. However, different kinds of electrochemical sensors are available on the market, each of several hundreds or even thousands of dollars, and therefore the cost of use is still relatively high. If a longer lifetime of the electrochemical sensor is desired to reduce the cost of use, it is desirable to minimize the time of exposure to the gas sample.
Therefore, a combined multi-gas detector applied to safety supervision and inspection, which has the advantages of powerful function, low energy consumption and long service life, is urgently needed.
Disclosure of Invention
The invention aims to provide a combined multi-gas detector which has strong functions, low energy consumption and long service life and is applied to safety supervision and inspection.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: the utility model provides a be applied to many gas detection of combination formula that safety supervision patrolled and examined appearance, includes:
the power supply is a rechargeable power supply and is used for supplying power to the whole equipment;
the host comprises a control module, an air pump and a sampling pipeline, wherein the control module is used for controlling the air pump to work, and the air pump is used for providing power for a gas sample to enter the sampling pipeline to form a sampling air flow;
the gas bin module comprises one or more gas bins, when the number of the gas bins exceeds one, one end of one of the gas bins is detachably connected with the host, two adjacent gas bins are also detachably connected, one or more electrochemical sensor modules can be placed in each gas bin, the outer wall of each gas bin is provided with an air inlet nozzle and an air outlet nozzle, a gas sample enters the gas bins from the air inlet nozzles and flows out from the air outlet nozzles, and the electrochemical sensor modules are used for detecting the gas sample entering the gas bins.
The shell of the host is provided with a first clamping piece, the shell of one of the air bins is provided with a second clamping piece, and the first clamping piece and the second clamping piece can be clamped with each other so as to connect the one of the air bins and the host together.
All gas bins that the gas bin module includes are the cylinder gas bin, the one end of the shell of gas bin is equipped with the external screw thread, and the other end is equipped with the internal thread, can with another the gas bin carries out threaded connection.
The gas cabin is also internally provided with a temperature adjusting device, and the temperature adjusting device is used for adjusting the temperature of the inner space of the gas cabin.
The temperature adjusting device is a heating device which is used for heating the temperature of the internal space of the gas cabin.
The temperature adjusting device is a refrigerating device, and the refrigerating device is used for cooling the temperature inside the gas cabin.
Still be equipped with temperature sensing device in the gas storehouse, temperature sensing device is used for right the temperature of gas storehouse inner space detects.
Still include the distribution module, the distribution module includes: the gas distribution device comprises a gas distribution tank, a pressure reducing valve and a first high-precision flow measuring device, wherein the gas distribution tank is connected with the pressure reducing valve and then connected with the input end of the first high-precision flow measuring device, and the output end of the first high-precision flow measuring device is the output end of the gas distribution module.
Still including mixing the storehouse, mix the storehouse and include first input and second input, and an output, first input is connected first high accuracy flow measuring device's output, the second input is the input of gas sample, the output that mixes the storehouse is connected the gas storehouse module.
The gas mixing device is characterized by further comprising a second high-precision flow measuring device, wherein the second high-precision flow measuring device is connected in front of a second input end of the mixing bin and is used for measuring the flow of a gas sample entering the mixing bin.
Compared with the prior art, the combined type multi-gas detector applied to safety supervision and inspection is characterized in that the gas bin module comprises one or more gas bins, when the number of the gas bins exceeds one, one end of one gas bin is detachably connected with the main machine, two adjacent gas bins are detachably connected, one or more electrochemical sensor modules can be placed in each gas bin, the outer wall of each gas bin is provided with the gas inlet nozzle and the gas outlet nozzle, a gas sample enters the gas bin from the gas inlet nozzle and flows out of the gas outlet nozzle, and the electrochemical sensor modules are used for detecting the gas sample entering the gas bins. Therefore, a plurality of gas bins can be assembled, and one or more sensors can be placed in each gas bin so as to adapt to the safety supervision of various working occasions.
The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings, which illustrate embodiments of the invention.
Drawings
Fig. 1 is a block diagram showing an embodiment of the combined multi-gas detector applied to safety supervision and inspection according to the present invention.
Fig. 2 is a block diagram of the connection of the host to the air silo module.
Fig. 3 is a schematic structural diagram of the host and the air bin module to be connected.
Fig. 4 is a schematic structural view illustrating the connection between the host and the gas cabin module.
Fig. 5 is a schematic structural diagram of the air distribution module.
Detailed Description
Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements. As described above, referring to fig. 1 and 2, the present invention provides a combined multi-gas detector 100 applied to safety supervision and inspection, including:
the power supply 1 is a rechargeable power supply and is used for supplying power to the whole equipment; the power supply 1 is a rechargeable battery detachable from the apparatus (instrument).
The main machine 2 comprises a control module 21, an air pump 22 and a sampling pipeline (not shown in the figure), wherein the control module 21 is used for controlling the air pump 22 to work, and the air pump 22 is used for providing power for a gas sample to enter the sampling pipeline to form a sampling air flow;
it should be noted that the control module 21 may be a control module with an embedded system as a core, or may be a single chip microcomputer, and the air pump may be a diaphragm pump, a rotary vane pump, or the like.
An air chamber module 3, said air chamber module 3 comprising one or more air chambers 31, wherein referring to fig. 2, fig. 2 exemplarily shows that said air chamber module 3 comprises 3 air chambers 31, referring to fig. 3 and 4, when the number of said air chambers 31 exceeds one, one end of one of said air chambers 31 is detachably connected with said host 2.
One or more electrochemical sensor modules can be placed in each gas bin 31, a gas inlet nozzle 31a and a gas outlet nozzle 31b are arranged on the outer wall of each gas bin 31, a gas sample enters the gas bin 31 from the gas inlet nozzle 31a and flows out from the gas outlet nozzle 31b, and the electrochemical sensor modules are used for detecting the gas sample entering the gas bins 31.
It should be noted that the electrochemical sensor is fixed in the gas chamber 31, and the power line and data line socket of the electrochemical sensor may be disposed at the outer wall of the gas chamber 31. Therefore, by the arrangement, each gas bin 31 is convenient to assemble and temporarily plug the data line when the gas bin is put into use.
The housing of the host 2 is provided with a first engaging member 210, the housing of one of the air bins 31 is provided with a second engaging member 310, and the first engaging member 210 and the second engaging member 310 can be engaged with each other, so that the one of the air bins 31 is connected with the host 2.
It should be noted that the one air chamber 31 is the one air chamber 31 directly connected to the host 2, the second engaging member 310 is provided on the air chamber 31 directly connected to the host 2, and the second engaging member 310 is not provided on the other air chambers 31 not directly connected to the host 2.
The first engaging member 210 is integrally formed with the housing of the main unit 2, and the second engaging member 310 is integrally formed with the housing of the one of the air containers 31. The second engaging member 310 is pushed into the engaging groove 210 formed by the first engaging member 210 from the side, and the structure shown in fig. 4 is formed.
It should be noted that the second engaging member 310 is made of a plastic material or a metal material with a stronger elastic deformation capability than the first engaging member 210, and the first engaging member 210 is made of a plastic material or a metal material with a harder material, when the second engaging member 310 enters the slot 210, the second engaging member 310 is in a slightly clamped state, so that the one of the air chambers 31 is firmly connected to the host 2.
Referring to fig. 3 and 4, all the air chambers 31 included in the air chamber module 3 are cylindrical air chambers, and one end of the housing of each air chamber 31 is provided with an external thread 311, and the other end of the housing is provided with an internal thread 312, which can be in threaded connection with another air chamber 31. Wherein, refer to fig. 4, which is a schematic view of the threaded connection between two adjacent air bins 3.
In one embodiment, a temperature adjusting device (not shown) is further disposed in the air chamber 31, and the temperature adjusting device is configured to adjust the temperature of the internal space of the air chamber 31. In order to adjust the temperature atmosphere in the gas chamber 31, the target substance in the gas sample is better monitored, and therefore, the temperature adjusting device is added.
In one embodiment, referring to fig. 3 and 4, the temperature adjusting device is a heating device 4, and the heating device 4 is used for heating the temperature of the internal space of the gas cabin 31.
In one embodiment, referring to fig. 3 and 4, the temperature adjusting device is a refrigerating device (not shown in the drawings) for reducing the temperature inside the air chamber 31. Generally, the refrigeration device may be a cold air device, the gas sample is pre-cooled by the cold air device, and the gas sample cooled to the target temperature is introduced into the gas chamber 31.
In one embodiment, referring to fig. 3 and 4, a temperature sensing device 5 is further disposed in the air chamber 31, and the temperature sensing device 5 is used for detecting the temperature of the inner space of the air chamber 31. The temperature sensing device 5 detects temperature information in the gas cabin 31, and the heating device 4 continues to perform heating operation/stop heating operation according to the temperature information detected by the temperature sensing device 5; or the refrigerating device continues to perform the refrigerating operation/stops the refrigerating operation.
In one embodiment, referring to fig. 5, fig. 5 is a schematic structural diagram of a gas distribution module. Still include distribution module 5, distribution module 5 includes: the gas distribution device comprises a gas distribution tank 51, a pressure reducing valve 52 and a first high-precision flow measuring device 53, wherein the gas distribution tank 51 is connected with the pressure reducing valve 52 and then connected with the input end of the first high-precision flow measuring device 53, and the output end of the first high-precision flow measuring device 53 is the output end of the gas distribution module.
Referring to fig. 5, the system further includes a mixing chamber 6, the mixing chamber 6 includes a first input end 61 and a second input end 62, and an output end 63, the first input end 61 is connected to the output end of the first high-precision flow measuring device 53, the second input end 62 is the input end of the gas sample, and the output end 63 of the mixing chamber is connected to the gas chamber module 3.
Referring to fig. 5, a second high-precision flow measuring device 64 is further included, said second high-precision flow measuring device 64 being connected before the second input 62 of the mixing chamber 6 for performing a flow measurement on the gas sample entering the mixing chamber 6.
It should be noted that the gas distribution module 5 is selected, and the gas distribution module 5 can be accessed in a monitoring occasion where the gas distribution module 5 needs to be added, so that the concentration of the gas sample can be reduced or increased through the gas distribution module 5. For example, if the concentration of the target substance contained in the gas sample is lower than the minimum identification value of the sensor, the gas distribution module 5 can be used to distribute the corresponding gas to increase the concentration of the target substance, so that the target substance can be monitored. Alternatively, when the concentration of the target substance of the gas sample is higher than the highest identification value of the sensor, an inert gas (e.g., nitrogen) may be provided through the gas distribution module 5 to reduce the concentration of the target substance so that the target substance can be monitored. Since the first high-accuracy flow rate measuring device 53 and the second high-accuracy flow rate measuring device 64 are disposed in the gas sample and the gas distribution module, the flow rate of the gas sample and the flow rate of the gas distribution module are both known and enter the mixing chamber 63 to be mixed. Therefore, it is understood that, when the concentration is finally calculated, the concentration of the target substance in the gas sample needs to be calculated according to the flow ratio between the gas sample and the gas distribution module.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims (10)

1. The utility model provides a be applied to many gas detection of combination formula that safety supervision patrolled and examined appearance which characterized in that includes:
the power supply is a rechargeable power supply and is used for supplying power to the whole equipment;
the host comprises a control module, an air pump and a sampling pipeline, wherein the control module is used for controlling the air pump to work, and the air pump is used for providing power for a gas sample to enter the sampling pipeline to form a sampling air flow;
the gas bin module comprises one or more gas bins, when the number of the gas bins exceeds one, one end of one of the gas bins is detachably connected with the host, two adjacent gas bins are also detachably connected, one or more electrochemical sensor modules can be placed in each gas bin, the outer wall of each gas bin is provided with an air inlet nozzle and an air outlet nozzle, a gas sample enters the gas bins from the air inlet nozzles and flows out from the air outlet nozzles, and the electrochemical sensor modules are used for detecting the gas sample entering the gas bins.
2. The combined type multi-gas detector applied to safety supervision and inspection according to claim 1, wherein a first clamping piece is arranged on a shell of the main machine, a second clamping piece is arranged on a shell of one of the gas bins, and the first clamping piece and the second clamping piece can be clamped with each other, so that the one of the gas bins and the main machine are connected together.
3. The combined type multi-gas detector applied to safety supervision and inspection according to claim 2, wherein all the gas bins included in the gas bin module are cylindrical gas bins, and one end of a shell of each gas bin is provided with an external thread while the other end of the shell of each gas bin is provided with an internal thread which can be in threaded connection with the other gas bin.
4. The combined type multi-gas detector applied to safety supervision and inspection according to claim 2, wherein a temperature adjusting device is further arranged in the gas cabin and used for adjusting the temperature of the inner space of the gas cabin.
5. The combined type multi-gas detector applied to safety supervision and inspection according to claim 4, wherein the temperature adjusting device is a heating device used for heating the temperature of the inner space of the gas cabin.
6. The combined multi-gas detector applied to safety supervision and inspection according to claim 4, wherein the temperature adjusting device is a refrigerating device for cooling the temperature inside the gas cabin.
7. The combined type multi-gas detector applied to safety supervision and inspection according to claim 4, wherein a temperature sensing device is further arranged in the gas cabin and used for detecting the temperature of the inner space of the gas cabin.
8. The combined multi-gas detector applied to safety supervision inspection according to claim 1, further comprising a gas distribution module, wherein the gas distribution module comprises: the gas distribution device comprises a gas distribution tank, a pressure reducing valve and a first high-precision flow measuring device, wherein the gas distribution tank is connected with the pressure reducing valve and then connected with the input end of the first high-precision flow measuring device, and the output end of the first high-precision flow measuring device is the output end of the gas distribution module.
9. The combined multi-gas detector applied to safety supervision and inspection according to claim 1, further comprising a mixing chamber, wherein the mixing chamber comprises a first input end and a second input end, and an output end, the first input end is connected with the output end of the first high-precision flow measuring device, the second input end is an input end of a gas sample, and the output end of the mixing chamber is connected with the gas chamber module.
10. The combined multi-gas detector applied to safety supervision and inspection according to claim 1, further comprising a second high-precision flow measuring device connected before the second input end of the mixing chamber for measuring the flow of the gas sample entering the mixing chamber.
CN202110592476.9A 2021-05-28 2021-05-28 Combined multi-gas detector applied to safety supervision and inspection Pending CN113189163A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110592476.9A CN113189163A (en) 2021-05-28 2021-05-28 Combined multi-gas detector applied to safety supervision and inspection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110592476.9A CN113189163A (en) 2021-05-28 2021-05-28 Combined multi-gas detector applied to safety supervision and inspection

Publications (1)

Publication Number Publication Date
CN113189163A true CN113189163A (en) 2021-07-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110592476.9A Pending CN113189163A (en) 2021-05-28 2021-05-28 Combined multi-gas detector applied to safety supervision and inspection

Country Status (1)

Country Link
CN (1) CN113189163A (en)

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