CN112881507A - Photocatalytic reaction multi-system gas detection system combined with transient mass spectrometer - Google Patents
Photocatalytic reaction multi-system gas detection system combined with transient mass spectrometer Download PDFInfo
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Abstract
The invention discloses a photocatalytic reaction multi-system gas detection system combined with a transient mass spectrometer, wherein an embedded platform provided with a photocatalytic reaction bottle assembly is positioned on a light source base, a multi-position gas flow selection valve is also arranged on the embedded platform, a sample gas flow outlet end and a plurality of sample gas flow inlet ends are arranged on the multi-position gas flow selection valve, the sample gas flow outlet end is communicated with the transient mass spectrometer through a sample inlet pipe, and each sample gas flow inlet end is communicated with one photocatalytic reaction bottle assembly through a gas circulation hose; one of the photocatalytic reaction bottle assemblies is only used for transmitting inert gas; the multi-position gas flow selection valve is electrically connected with an external controller and used for selecting reaction gas generated in a certain photocatalytic reaction bottle component through the external controller and inputting the reaction gas into the transient mass spectrometer for analysis; the device can simultaneously and rapidly realize qualitative and/or quantitative gas detection of a photocatalytic multi-reaction system, and has simple structure and short acquisition time and detection time.
Description
Technical Field
The invention relates to the field of photocatalytic reaction gas detection devices, in particular to a device which can be used together with a transient mass spectrometer and can realize simultaneous online gas detection aiming at a photocatalytic multi-reaction system.
Background
The photocatalytic reaction is that a reaction system containing a catalyst converts light energy into chemical energy under the irradiation of light rays so as to promote the catalytic reaction; the photocatalytic reaction is widely applied to the fields of air purification, self-purification, medical and health, agriculture, deodorization, water purification and the like; in the photocatalytic reaction, reaction gas is often generated, and the gas detection work is very important in many fields, and has very important significance for researching the activity of the catalyst and exploring the reaction mechanism.
In order to detect the gas generated by the catalytic reaction, gas chromatography is generally adopted at present, but the gas chromatography requires long acquisition time and detection time, and cannot realize rapid, qualitative and quantitative gas detection at the same time.
Therefore, it is necessary to develop a device capable of simultaneously realizing on-line gas detection for multiple reaction systems, which is of great significance for the research of catalyst activity and the exploration of reaction mechanism.
Disclosure of Invention
In order to solve the technical problems, the invention provides the photocatalytic multi-reaction-system online gas detection device combined with the transient mass spectrometer, which has a simple structure, can simultaneously and quickly realize qualitative and/or quantitative gas detection of the photocatalytic multi-reaction system, and has short acquisition time and detection time.
The technical scheme of the invention is as follows: the utility model provides an online gas detection device of many reaction systems of photocatalysis with transient state mass spectrometer allies oneself with, includes light source base, embedding platform and photocatalytic reaction bottle subassembly, and the embedding platform sets up on the light source base, and photocatalytic reaction bottle subassembly sets up on the embedding platform, wherein:
a plurality of light sources used for irradiating the bottom of the photocatalysis reaction bottle component are arranged in the light source base;
the embedding platform is also provided with a multi-position airflow selection valve, the multi-position airflow selection valve is provided with a sample airflow outlet end and a plurality of sample airflow inlet ends, the sample airflow outlet end is communicated with the transient mass spectrometer through a sample inlet pipe, and each sample airflow inlet end is communicated with a photocatalytic reaction bottle assembly through a gas circulation hose;
one of the photocatalytic reaction bottle assemblies is only used for transmitting inert gas;
the multi-position gas flow selection valve is electrically connected with the external controller and used for selecting reaction gas generated in a certain photocatalytic reaction bottle component through the external controller and inputting the reaction gas into the transient mass spectrometer for analysis.
The on-line gas detection device of the photocatalytic multi-reaction system combined with the transient mass spectrometer is characterized in that: the multi-position gas flow selection valve is positioned at the central position of the embedding platform, and the plurality of photocatalytic reaction bottle assemblies are distributed at intervals around the multi-position gas flow selection valve.
The on-line gas detection device of the photocatalytic multi-reaction system combined with the transient mass spectrometer is characterized in that: the plurality of photocatalytic reaction bottle assemblies are symmetrically arranged on the periphery of the multi-position airflow selection valve at equal intervals by taking the central position of the embedded platform as the center.
The on-line gas detection device of the photocatalytic multi-reaction system combined with the transient mass spectrometer is characterized in that: the number of the plurality of photocatalytic reaction bottle components is 3-8.
The on-line gas detection device of the photocatalytic multi-reaction system combined with the transient mass spectrometer is characterized in that: the embedding platform is provided with a first counter bore and a plurality of second counter bores, the first counter bore is positioned at the center of the top surface of the embedding platform, and the plurality of second counter bores are arranged around the first counter bore; the first counter bore is used for being installed in the multi-position airflow selection valve in a matching mode, each second counter bore is used for being installed in a bottle body of a photocatalytic reaction bottle assembly in a matching mode, and a first through hole used for supporting the periphery of the bottom face of the bottle body is coaxially formed in the bottom of each second counter bore.
The on-line gas detection device of the photocatalytic multi-reaction system combined with the transient mass spectrometer is characterized in that: the light source base is provided with a plurality of second through holes, a light source is arranged in each second through hole in a matching mode, and all the light sources are electrically connected with the external controller and used for selectively lighting the light sources needing photocatalytic reaction through the external controller; all the second through holes are positioned right below the corresponding first through holes, and the aperture of each second through hole is larger than that of each first through hole.
The on-line gas detection device of the photocatalytic multi-reaction system combined with the transient mass spectrometer is characterized in that: the light source adopts a high-power LED lamp or a xenon lamp of monochromatic light.
The on-line gas detection device of the photocatalytic multi-reaction system combined with the transient mass spectrometer is characterized in that: the center position department of embedding platform bottom surface is provided with regular polygon counter bore, and the center position department of light source base top surface corresponds is provided with the regular polygon boss of adaptation embedding regular polygon counter bore.
The on-line gas detection device of the photocatalytic multi-reaction system combined with the transient mass spectrometer is characterized in that: the light source base and the embedded platform are both made of non-transparent polyhexamethylene adipamide or PBT engineering plastics.
The on-line gas detection device of the photocatalytic multi-reaction system combined with the transient mass spectrometer is characterized in that: the gas circulation hose is made of a PVC pipe or a polyether-ether-ketone pipe.
The photocatalytic multi-reaction-system online gas detection device combined with the transient mass spectrometer provided by the invention has the advantages that the structure is simple, the qualitative and/or quantitative gas detection of the photocatalytic multi-reaction system can be simultaneously and rapidly realized, and the acquisition time and the detection time are short due to the adoption of the multi-position gas flow selection valve controlled by the external controller.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way; the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for aiding the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention; those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case.
FIG. 1 is a schematic structural diagram of an embodiment of an on-line gas detection device with a photocatalytic multi-reaction system for use with a transient mass spectrometer according to the present invention;
FIG. 2 is a perspective view of an embodiment of the photocatalytic multi-reaction system on-line gas detection device in combination with a transient mass spectrometer of the present invention;
FIG. 3 is a longitudinal cross-sectional view of FIG. 2 of the present invention;
FIG. 4 is a schematic structural diagram of three bottle bodies and three bottle caps constituting a photocatalytic reaction bottle assembly used in an embodiment of the apparatus for on-line gas detection with a photocatalytic multi-reaction system for use with a transient mass spectrometer according to the present invention;
FIG. 5 is a perspective view of a photocatalytic reaction bottle assembly composed of an injection type bottle cap A and a conventional bottle body D, which is used in an embodiment of the photocatalytic multi-reaction-system online gas detection apparatus for use with a transient mass spectrometer according to the present invention;
FIG. 6 is an exploded view of the present invention of FIG. 5;
FIG. 7 is a longitudinal cross-sectional view of the invention of FIG. 5;
FIG. 8 is a cross-sectional view of a gas pressure detection type bottle cap B used in an embodiment of the photocatalytic multi-reaction-system online gas detection device used in conjunction with a transient mass spectrometer of the present invention;
FIG. 9 is a cross-sectional view of a direct pumping sampling bottle cap C used in an embodiment of the photocatalytic multi-reaction system online gas detection apparatus of the present invention in combination with a transient mass spectrometer;
FIG. 10 is a cross-sectional view of a thermostatic bottle E for an embodiment of the photocatalytic multi-reaction system online gas detection device used in conjunction with a transient mass spectrometer of the present invention;
FIG. 11 is a cross-sectional view of a heated vial F used in an embodiment of the photocatalytic multi-reaction system in-line gas detection device of the present invention in combination with a transient mass spectrometer;
the various reference numbers in the figures are summarized: the light source device comprises a light source base 100, a light source 110, a second through hole 120, a regular polygon boss 130, an embedded platform 200, a first counter bore 210, a second counter bore 220, a first through hole 230, a regular polygon counter bore 240, a multi-position airflow selection valve 300, a sample airflow outlet end 310, a sample airflow inlet end 320, a gas circulation hose 321, a photocatalytic reaction bottle assembly 4AD, a photocatalytic reaction bottle assembly 4BD, a gas two-way valve 800, a ferrule tube connector 810, a valve body 820, a ball valve handle 830, a double-thread tube connector 840, a filter screen 850, a transient mass spectrometer 900, a sample inlet pipe 910, an injection bottle cap A, a bottle cap body A10 of the injection bottle cap A, an internal thread hole A11 of the injection bottle cap A, a reaction gas outlet channel A12 of the injection bottle cap A, a reaction liquid injection channel A13, an adapter A20, a bottle cap eye block A30, a sealing ring A40, a gas pressure detection type bottle cap B, a bottle cap B of the gas pressure, An internal thread hole B11 of the (air pressure detection type bottle cap B), a first reaction gas outlet channel B12, a second reaction gas outlet channel B13, an air pressure sensor B20, a direct air extraction sampling type bottle cap C, a bottle cap body C10 of the (direct air extraction sampling type bottle cap C), an internal thread hole C11 of the (direct air extraction sampling type bottle cap C), a reaction gas outlet channel C12 of the direct air extraction sampling type bottle cap C, a common type bottle body D, a bottle mouth section D10 of the common type bottle body D, a bottle body section D11 of the common type bottle body D, a bottle bottom D12 of the common type bottle body D, a constant temperature type bottle body E, an inner layer bottle body E10 of the constant temperature type bottle body E, a bottle bottom E12 of the inner layer bottle body E10, an outer layer bottle body E20, a bottle bottom E22 of the outer layer bottle body E20, a water inlet E23, a water outlet E24, a heating type bottle body F, an inner layer bottle body F35 10 of the heating type bottle body F20.
Detailed Description
The embodiments and examples of the present invention will be described in detail below with reference to the accompanying drawings, and the described embodiments are only for the purpose of illustrating the present invention and are not intended to limit the embodiments of the present invention.
The invention develops or provides an on-line gas detection device which can be used with the transient mass spectrometer, can simultaneously analyze and detect gases with different reaction conditions and different reaction scenes, and can realize quick, qualitative and quantitative gas detection.
Fig. 1 is a schematic structural diagram of an embodiment of the photocatalytic multi-reaction-system online gas detection apparatus used with a transient mass spectrometer according to the present invention, and fig. 2 is a perspective view of an embodiment of the photocatalytic multi-reaction-system online gas detection apparatus used with a transient mass spectrometer according to the present invention; the on-line gas detection device of the photocatalytic multi-reaction system comprises a light source base 100, an embedded platform 200, a multi-position gas flow selection valve 300 and a plurality of photocatalytic reaction bottle assemblies 4 BD; wherein, the embedding platform 200 is arranged on the light source base 100, the multi-position airflow selection valve 300 and the plurality of photocatalytic reaction bottle assemblies 4BD are all arranged on the embedding platform 200, and the light source base 100 is internally provided with a plurality of light sources 110 for irradiating the bottoms of the photocatalytic reaction bottle assemblies 4 BD; the multi-position gas flow selection valve 300 is provided with a sample gas flow outlet end 310 and a plurality of sample gas flow inlet ends 320, the sample gas flow outlet end 310 is communicated with the transient mass spectrometer 900 through a sample inlet pipe 910, and each sample gas flow inlet end 320 is communicated with a photocatalytic reaction bottle assembly 4BD through a gas circulation hose 321; and the multi-position gas flow selection valve 300 is electrically connected to an external controller (not shown, the same applies below) for selecting the reaction gas generated in a certain photocatalytic reaction vial assembly 4BD to be input to the transient mass spectrometer 900 for analysis by the external controller.
As shown in fig. 2, taking the example of arranging six photocatalytic reaction vial assemblies 4BD each composed of a gas pressure detection type vial cap B and a general type vial D on the insertion platform 200, it is preferable that the multi-position gas flow selection valve 300 is located at the center of the insertion platform 200, and the plurality of photocatalytic reaction vial assemblies 4BD are arranged at intervals around the multi-position gas flow selection valve 300, thereby facilitating the simplification of the arrangement of the plurality of photocatalytic reaction vial assemblies 4BD and the unification of the length of the gas circulation hoses 321 used.
Preferably, a plurality of photocatalytic reaction vial assemblies 4BD are symmetrically disposed at equal intervals around the periphery of the multi-position gas flow selector valve 300 centered at the central position of the insert platform 200, thereby facilitating standardization and serialization of the entire gas detection apparatus.
Specifically, the number of the plurality of photocatalytic reaction bottle assemblies 4BD is 3-8, preferably 6; preferably, one of the photocatalytic reaction cylinder assemblies 4BD is configured to transmit only inert gas such as nitrogen or argon for replacing the gas carrying cylinder, so that the reaction gas remaining in the sample inlet pipe 910, the gas flow hose 321 and the gas flow passage inside the multi-position gas flow selector valve 300 after the last gas detection can be removed before each gas detection, thereby improving the accuracy of the next photocatalytic reaction cylinder assembly 4BD to be detected.
Referring to fig. 3, fig. 3 is a longitudinal sectional view of fig. 2 of the present invention, and further, a first counterbore 210 and a plurality of second counterbores 220 are provided in the insert platform 200, the first counterbore 210 is located at a central position of the top surface of the insert platform 200, and the plurality of second counterbores 220 are provided around the first counterbore 210 at the periphery thereof; the first counter bore 210 is adapted to be fitted into the middle lower portion of the multi-position air flow selector valve 300, each second counter bore 220 is adapted to be fitted into a general type bottle body D of one photocatalytic reaction bottle assembly 4BD, and the bottom of each second counter bore 220 is coaxially provided with a first through hole 230 for supporting the periphery of the bottom surface of the general type bottle body D; that is, each second counter bore 220 and the first through hole 230 at the bottom thereof form a step shape with a large top and a small bottom, thereby facilitating the picking and placing of the photocatalytic reaction bottle assembly 4BD, and facilitating the light from the light source base 100 to irradiate the bottom surface of the ordinary bottle body D of the photocatalytic reaction bottle assembly 4 BD.
Further, a plurality of second through holes 120 are disposed on the light source base 100, one light source 110 is adapted to be installed in each second through hole 120, and all the light sources 110 are electrically connected to the external controller, and are used for selectively lighting the light sources 110 requiring photocatalytic reaction conditions through the external controller; preferably, the light source 110 can be a high-power LED lamp or a xenon lamp of monochromatic light such as white, yellow, red or purple; all the second through holes 120 are located right below the corresponding first through holes 230, and the aperture of the second through hole 120 is larger than that of the first through hole 230; preferably, the aperture of the second through hole 120 is the same as that of the second counter hole 230, so that all the light of the light source 110 can be irradiated into the general type bottle body D of the photocatalytic reaction bottle assembly 4BD corresponding thereto.
In order to prevent the embedded platform 200 on the light source base 100 from rotating, it is preferable that a regular polygonal counter bore 240 such as a regular triangle, a square, a regular pentagon, a regular hexagon, or a regular octagon is disposed at the center position of the bottom surface of the embedded platform 200, and meanwhile, a regular polygonal boss 130 adapted to be embedded into the regular polygonal counter bore 240 is correspondingly disposed at the center position of the top surface of the light source base 100, so as to improve the stability of the whole gas detection device.
Specifically, the light source base 100 and the embedded platform 200 are both made of non-transparent engineering plastics such as polyhexamethylene adipamide or PBT, so as to meet the structural strength and rigidity requirements of the whole gas detection device.
Specifically, the gas flow hose 321 is made of a PVC pipe or a polyether ether ketone (PEEK) pipe, so that the transmitted reaction gas can be prevented from being polluted as much as possible, and the accuracy of gas detection can be ensured.
Referring to fig. 4, fig. 4 is a schematic structural diagram of three bottle bodies and three bottle caps constituting a photocatalytic reaction bottle assembly used in an embodiment of the photocatalytic multi-reaction-system online gas detection apparatus for use with a transient mass spectrometer of the present invention, where a single photocatalytic reaction bottle assembly is composed of one bottle body and one bottle cap, and the bottle cap can be fastened to the mouth of the bottle body; and the bottle cap has three forms: injection formula bottle lid A, atmospheric pressure detection type bottle lid B and the sampling formula bottle lid C of directly bleeding, the bottle also has three kinds of forms: a common bottle body D, a constant temperature bottle body E and a heating type bottle body F; the three bottle caps and the three bottle bodies all adopt sealing interfaces of the same type and specification, for example, threaded interfaces of the same type and specification, so as to ensure that the three bottle caps and the three bottle bodies can be combined at will and used for different reaction systems and different application scenes, and for the constant-temperature bottle body E and the heating bottle body F, second counter bores matched with the constant-temperature bottle body E and the heating bottle body F in the shape and the structure of the embedding platform 200 in the figure 3 are correspondingly arranged.
Referring to fig. 5, 6 and 7, fig. 5 is a perspective view of a photocatalytic reaction vial assembly composed of an injection type vial cap a and a general type vial body D for use in an embodiment of a photocatalytic multi-reaction system online gas detection apparatus for use with a transient mass spectrometer according to the present invention, fig. 6 is an exploded view of fig. 5 according to the present invention, and fig. 7 is a longitudinal sectional view of fig. 5 according to the present invention; taking a photocatalytic reaction bottle assembly 4AD composed of an injection type bottle cap a and a common bottle body D as an example, specifically, the injection type bottle cap a is composed of a bottle cap body a10, a gas two-way valve 800 and an adapter a20, a standard internal threaded hole a11 is provided on the bottom surface of the bottle cap body a10, a reaction gas outlet channel a12 and a reaction liquid injection channel a13 both communicated with the internal threaded hole a11 are provided side by side on the top surface of the bottle cap body a10, the gas two-way valve 800 is connected to the reaction gas outlet channel a12 through corresponding threaded holes, and the adapter a20 is connected to the reaction liquid injection channel a13 through corresponding threaded holes, and is used for injecting the reaction liquid into the common bottle body D through the adapter a20 by using an injector.
Preferably, an eyelet block a30 is further provided between the lower end of the adapter a20 and the cap body a10 to prevent the reaction gas from directly overflowing from the adapter a20 through the reaction liquid injection passage a13, and when the reaction liquid is injected, the eyelet block a30 needs to be pierced by a needle of a syringe.
Referring to fig. 8, fig. 8 is a cross-sectional view of an air pressure detection type bottle cap B used in an embodiment of the on-line gas detection apparatus of a photocatalytic multi-reaction system combined with a transient mass spectrometer of the present invention, specifically, the air pressure detection type bottle cap B is composed of a bottle cap body B10, a gas two-way valve 800 and an air pressure sensor B20, a standard internal threaded hole B11 is disposed on a bottom surface of the bottle cap body B10, a first reactant gas outlet channel B12 and a second reactant gas outlet channel B13 both communicated with the internal threaded hole B11 are disposed side by side on a top surface of the bottle cap body B10, the gas two-way valve 800 is connected to the first reactant gas outlet channel B12 through a corresponding threaded hole, and the air pressure sensor B20 is connected to the second reactant gas outlet channel B13 through a; in the detection process, the gas pressure sensor B20 is electrically connected to the transient mass spectrometer 900 of fig. 1, so that the gas pressure change data of the reaction gas can be monitored and fed back in real time to perform gas analysis in cooperation with the transient mass spectrometer 900.
Referring to fig. 9, fig. 9 is a cross-sectional view of a direct pumping sampling bottle cap C used in an embodiment of the on-line gas detection apparatus of a photocatalytic multi-reaction system used in conjunction with a transient mass spectrometer of the present invention, specifically, the direct pumping sampling bottle cap C is composed of a bottle cap body C10 and a gas two-way valve 800, a standard internal threaded hole C11 is disposed on a bottom surface of the bottle cap body C10, only a reaction gas outlet channel C12 communicated with the internal threaded hole C11 is disposed on a top surface of the bottle cap body C10, and the gas two-way valve 800 is connected to the reaction gas outlet channel C12 through a corresponding threaded hole.
Preferably, the bottle caps (a10, B10 and C10) of the injection bottle cap a, the air pressure detection bottle cap B and the direct air extraction sampling bottle cap C can be made of corrosion-resistant engineering plastic materials such as PMMA, PC, PP, PTFE or PEEK, so as to meet the structural strength and use requirements of the bottle caps.
As shown in fig. 6 and 7, in particular, the ordinary bottle body D is composed of a mouth section D10, a body section D11 and a bottom D12, the mouth section D10 is provided with external threads D13 of a standard specification, the body section D11 is straight-tube type, the mouth section D10 and the body section D11 can be made of ordinary glass, quartz glass, corrosion-resistant plastic or stainless steel, and the bottom D12 is made of sapphire glass or quartz glass, because sapphire or quartz is more conducive to light from a light source directly entering the interior of the reaction bottle, and is more conducive to photocatalytic reaction.
Referring to fig. 10, fig. 10 is a cross-sectional view of a constant temperature bottle E used in an embodiment of the present invention of a photocatalytic multi-reaction system online gas detection apparatus used in conjunction with a transient mass spectrometer, specifically, the constant temperature bottle E is a double-layer bottle and is composed of an inner layer bottle E10 and an outer layer bottle E20, the inner layer bottle E10 is integrally embedded in the outer layer bottle E20, a bottle bottom E22 of the outer layer bottle E20 is flush with a bottle bottom E12 of the inner layer bottle E10, the inner layer bottle E10 is equivalent to the common bottle D in fig. 7, and an outer wall E21 of the outer layer bottle E20 is respectively provided with a water inlet E23 for receiving condensed water and a water outlet E24 for discharging the condensed water, so that the inner layer bottle E10 and the reaction system thereof are always at a constant temperature; the outer layer bottle body E20 can also be made of common glass, corrosion-resistant plastic or stainless steel.
Referring to fig. 11, fig. 11 is a cross-sectional view of a heating bottle body F used in an embodiment of the on-line gas detection apparatus with a photocatalytic multi-reaction system for use with a transient mass spectrometer of the present invention, specifically, the heating bottle body F is composed of an inner layer bottle body F10 and a heating seat F20, the inner layer bottle body F10 is embedded in the heating seat F20, the inner layer bottle body F10 is a common bottle body D made of stainless steel, a heating resistance wire (not shown, the same below) and a temperature sensor (not shown, the same below) are disposed in the heating seat F20 and electrically connected to an external controller, and the external controller combines the temperature fed back by the temperature sensor to control the heating power and time of the heating resistance wire in real time, so as to be suitable for a solid heating gas production reaction or a solid-liquid mixing heating gas production reaction.
Further, as shown in fig. 5, fig. 6 and fig. 7, the gas two-way valves 800 for the three bottle caps (i.e., the injection bottle cap a, the air pressure detection bottle cap B and the direct pumping sampling bottle cap C) are all composed of a snap-in pipe joint 810, a valve body 820, a ball valve handle 830, a double-threaded pipe joint 840 and a filter screen 850; the clamping end of the clamping sleeve joint 810 is used for clamping a gas flow hose 321 in fig. 2 (or fig. 3) and communicating with a sample gas flow inlet end 320 on the multi-position gas flow selection valve 300 in fig. 1 through the gas flow hose 321, the threaded end of the clamping sleeve joint 810 is used for connecting to the upper end of the valve body 820, the ball valve handle 830 is positioned on one side of the valve body 820 and is used for opening or closing a gas flow channel in the valve body 820, one end of a double-threaded pipe joint 840 is connected to the lower end of the valve body 820, the other end of the double-threaded pipe joint 840 is connected to a corresponding bottle cap body (a10, B10 or C10), and a filter screen 850 is positioned between the double-threaded pipe joint 840 and the bottle cap body (a10, B10 or C10) to prevent solid substances in a reaction bottle from entering the transient mass spectrometer 900 through the sample inlet; specifically, the filter screen 850 may be made of a stainless steel wire mesh or a porous metal plate, and the ferrule tube fitting 810, the valve body 820, the ball valve handle 830, and the double-threaded tube fitting 840 may be made of stainless steel materials.
Preferably, a porous PTFE membrane (not shown, the same applies below) is disposed between the double-threaded pipe joint 840 and the bottle cap (a10, B10 or C10), and the porous PTFE membrane is used in combination with the filter screen 850 to effectively prevent reaction liquid splashed in the reaction bottle from entering the transient mass spectrometer 900 through the sample inlet pipe 910 and damaging the transient mass spectrometer 900.
Further, a sealing ring (e.g., a40 in fig. 6 and 7) or a gasket made of silicone rubber, fluorosilicone rubber, or polytetrafluoroethylene material is further disposed between the cap body (a10, B10, or C10) and the mouth of the bottle body (i.e., the normal bottle body D, the thermostatic bottle body E, or the heating bottle body F), so as to cooperate with the screw interfaces of the two bodies to perform a gas sealing function.
The assembly process of the photocatalytic multi-reaction-system online gas detection device combined with the transient mass spectrometer comprises the following steps:
placing the light sources 110 of monochromatic light colors required by the photocatalytic reaction into the corresponding second through holes 120 on the light source base 100, and electrically connecting all the light sources 110 with an external controller; for the second through hole 120 directly below the non-photocatalytic reaction bottle assembly, the light source 110 may not be placed;
placing the insert platform 200 on the light source base 100, electrically connecting the multi-position airflow selector valve 300 with an external controller, and placing the multi-position airflow selector valve 300 in the first counterbore 210 on the insert platform 200;
according to the requirements of different reaction systems, corresponding bottle caps (namely an injection type bottle cap A, an air pressure detection type bottle cap B or a direct air extraction sampling type bottle cap C) and bottle bodies (namely a common type bottle body D, a constant temperature type bottle body E or a heating type bottle body F) are selected to form different reaction bottle assemblies (for example, a photocatalytic reaction bottle assembly 4 BD):
for example, a photocatalytic reaction bottle assembly 4BD composed of an injection type bottle cap a and a normal type bottle body D, a constant temperature reaction bottle assembly composed of a direct air extraction sampling type bottle cap C and a constant temperature type bottle body E, a solid-liquid mixing heating reaction bottle assembly composed of an air pressure detection type bottle cap B and a heating type bottle body F, and the like may constitute nine different reaction bottle assemblies in total;
it should be noted that, for the constant temperature reaction flask assembly, condensed water is injected into the outer layer flask E20 of the constant temperature type flask E of the constant temperature reaction flask assembly, and the water inlet E23 and the water outlet E24 of the outer layer flask E20 are connected to a circulating cooling device which is connected with an external controller in a control manner;
for the solid-liquid mixed heating reaction bottle assembly, a heating resistance wire and a temperature sensor in a heating type bottle body F heating seat F20 of the solid-liquid mixed heating reaction bottle assembly are electrically connected with an external controller, and a pressure sensor B20 on a pressure detection type bottle cap B of the solid-liquid mixed heating reaction bottle assembly is connected with a pressure signal input end of the transient mass spectrometer 900 in a signal mode;
only adding corresponding solid reaction substances and/or granular catalysts into the bottle bodies (namely the common bottle body D, the constant-temperature bottle body E or the heating bottle body F) of the corresponding reaction bottle assemblies, but not injecting reaction liquid for the time being, so that reaction gas cannot be generated in all the reaction bottle assemblies to be detected for the time being;
placing all reaction bottle components to be detected in corresponding second counter bores 220 on the embedding platform 200, and reserving one second counter bore 220;
a gas circulation hose 321 is respectively connected to the ferrule tube joints 810 of the top gas two-way valves 800 of all reaction bottle component bottle caps to be detected (i.e. an injection bottle cap A, an air pressure detection bottle cap B or a direct air extraction sampling bottle cap C), and is communicated with the corresponding sample gas flow inlet end 320 on the multi-position gas flow selection valve 300, and simultaneously, a sample inlet pipe 910 of the transient mass spectrometer 900 is communicated with the sample gas flow outlet end 310 on the multi-position gas flow selection valve 300;
selecting an air pressure detection type bottle cap B and a common bottle body D to form a ventilation reaction bottle assembly, detaching an air pressure sensor B20 on the air pressure detection type bottle cap B, connecting a gas circulation hose 321 and a clamping sleeve joint 810 on a similar gas two-way valve 800 to a second gas outlet channel B13 of the air pressure detection type bottle cap B, and communicating the gas circulation hose 321 with a gas carrying bottle (not shown, the lower part is the same as the lower part) filled with single inert gases such as nitrogen or argon; placing the gas exchange reaction bottle assembly in a second counter bore 220 reserved on the embedding platform 200, accessing a clamping sleeve pipe joint 810 of the gas two-way valve 800 at the top of the gas pressure detection type bottle cap B of the gas exchange reaction bottle assembly by adopting another gas circulation hose 321, and communicating the clamping sleeve pipe joint with a sample gas flow inlet end 320 on the multi-position gas flow selection valve 300;
thus, a multi-reaction system on-line gas detection device capable of detecting a photocatalytic reaction system at one time has been assembled for use with a transient mass spectrometer.
The detection method of the on-line gas detection device of the photocatalytic multi-reaction system combined with the transient mass spectrometer takes the sequence of a disposable detection photocatalytic reaction bottle component 4AD, a constant temperature reaction bottle component and a solid-liquid mixed heating reaction bottle component as an example:
the multi-position gas flow selecting valve 300 is controlled by an external controller to connect gas flow channels between all the sample gas flow inlet ends 320 and all the sample gas flow outlet ends 310, the gas two-way valve 800 of all reaction bottle components including a gas exchange reaction bottle component on the embedding platform 200 is opened in a mode of rotating a ball valve handle 830 (the same way below), the output flow of single inert gas is adjusted by a flow meter arranged on a gas carrying bottle, and the gas is continuously ventilated for about 15 minutes;
starting the transient mass spectrometer 900, when the detected background signal shows that only a single inert gas exists, controlling the multi-position gas flow selection valve 300 through the external controller, only connecting the gas flow channel between the sample gas flow inlet end 320 and the sample gas flow outlet end 310 of a certain to-be-detected photocatalytic reaction bottle assembly, and disconnecting the gas flow channels between the sample gas flow inlet end 320 and the sample gas flow outlet end 310 of other to-be-detected reaction bottle assemblies and the gas exchange reaction bottles;
closing the gas two-way valves 800 of all the reaction bottle assemblies to be detected and the ventilation reaction bottles on the embedded platform 200, only opening the gas two-way valve 800 of the photocatalytic reaction bottle assembly to be detected, and lighting the light source 110 corresponding to the photocatalytic reaction bottle assembly to be detected 4AD on the light source base 100 through an external controller; a reaction liquid is injected into a common bottle body D of the photocatalytic reaction bottle component 4AD to be detected through an injector by passing the reaction liquid through an adapter A20 of the injection type bottle cap A of the photocatalytic reaction bottle component 4AD to be detected and puncturing a needle eye block A30; therefore, the reaction gas generated by the photocatalytic reaction bottle assembly 4AD to be detected enters the multi-position gas flow selection valve 300 through the corresponding gas circulation hose 321, and enters the transient mass spectrometer 900 through the gas flow channel communicated with the multi-position gas flow selection valve 300 through the sample inlet pipe 910 for analysis, and the qualitative and/or quantitative gas detection result of the photocatalytic reaction system to be detected is obtained;
then, the gas two-way valve of the detected photocatalytic reaction bottle assembly 4AD is closed, and the light source 110 corresponding to the detected photocatalytic reaction bottle assembly 4AD on the light source base 100 is turned off through the external controller; the multi-position gas flow selection valve 300 is controlled by an external controller, the gas flow channel of the multi-position gas flow selection valve is switched to the gas flow channel only between the sample gas flow inlet end 320 and the sample gas flow outlet end 310 of the gas exchange reaction bottle assembly, the gas two-way valve 800 of the gas exchange reaction bottle assembly is opened at the same time, and when the transient mass spectrometer 900 continuously ventilates until only a single inert gas is detected, the gas two-way valve 800 of the gas exchange reaction bottle assembly is closed;
controlling the multi-position airflow selector valve 300 through an external controller, only connecting an airflow channel between the sample airflow inlet end 320 and the sample airflow outlet end 310 of the next constant temperature reaction bottle assembly to be detected, and starting a circulating cooling device communicated with the water inlet E23 and the water outlet E24 of the outer-layer bottle body E20 of the constant temperature reaction bottle assembly to be detected through the external controller, so that the condensed water in the outer-layer bottle body E20 of the constant temperature reaction bottle assembly to be detected is kept at a constant temperature;
if the constant temperature reaction system to be detected needs photocatalysis, lightening a light source 110 corresponding to the constant temperature reaction bottle component to be detected on a light source base 100 through an external controller; if the constant temperature reaction system to be detected does not need photocatalysis, the light source 110 corresponding to the constant temperature reaction bottle component to be detected on the light source base 100 does not need to be lightened through an external controller;
unscrewing a direct air-extracting sampling type bottle cap C of a constant-temperature reaction bottle assembly to be detected, injecting reaction liquid into an inner-layer bottle body E10 of a constant-temperature bottle body E, and then timely screwing the direct air-extracting sampling type bottle cap C; because the inner-layer bottle body E10 of the constant-temperature bottle body E is filled with single inert gas of nitrogen or argon, and after the reaction liquid is injected into the inner-layer bottle body E10 of the constant-temperature bottle body E, the reaction liquid reacts with the solid reaction substance in the inner-layer bottle body E10, the generated reaction gas only extrudes the original single inert gas in the inner-layer bottle body E10 outwards, and the external air is difficult to enter the inner-layer bottle body E10 before the direct-suction sampling bottle cap C is screwed down in time, the gas detection result of the constant-temperature reaction system to be detected cannot be deviated; therefore, the reaction gas generated by the isothermal reaction bottle component to be detected enters the multi-position gas flow selection valve 300 through the corresponding gas flow hose 321, enters the transient mass spectrometer 900 through the gas flow channel communicated with the multi-position gas flow selection valve 300 through the sample inlet pipe 910 for analysis, and obtains a qualitative and/or quantitative gas detection result of the isothermal reaction to be detected;
then, the gas two-way valve 800 of the detected constant temperature reaction bottle assembly is closed, the circulating cooling equipment communicated with the water inlet E23 and the water outlet E24 of the outer layer bottle body E20 of the constant temperature reaction bottle assembly to be detected is closed through an external controller, and for a constant temperature reaction system needing photocatalysis, the light source 110 corresponding to the detected constant temperature reaction bottle assembly on the light source base 100 is extinguished through the external controller; the multi-position gas flow selection valve 300 is controlled by an external controller, the gas flow channel of the multi-position gas flow selection valve is switched to the gas flow channel only between the sample gas flow inlet end 320 and the sample gas flow outlet end 310 of the associated gas exchange reaction bottle assembly, the gas two-way valve 800 of the gas exchange reaction bottle assembly is opened at the same time, and the gas two-way valve 800 of the gas exchange reaction bottle assembly is closed when the gas is continuously ventilated until only a single inert gas is detected by the transient mass spectrometer 900;
the multi-position airflow selector valve 300 is controlled by an external controller, only an airflow channel between a sample airflow inlet end 320 and a sample airflow outlet end 310 of the next solid-liquid mixed heating reaction bottle assembly to be detected is connected, the external controller is connected with a power supply of a heating resistance wire of a heating seat F20 of the solid-liquid mixed heating reaction bottle assembly to be detected, and meanwhile, the power and time of the heating resistance wire are controlled in real time by combining the temperature fed back by the temperature sensor, so that the temperature rising amplitude of the heating seat F20 is controlled;
unscrewing an air pressure detection type bottle cap B of the solid-liquid mixed heating reaction bottle assembly to be detected, and timely screwing the air pressure detection type bottle cap B after injecting the reaction liquid into the heating type bottle body F; because the heating type bottle body F is filled with single inert gas of nitrogen or argon, and after the reaction liquid is injected into the heating type bottle body F, the reaction liquid reacts with the solid reaction substance in the heating type bottle body F, the generated reaction gas only can outwards extrude the original single inert gas in the heating type bottle body F, and outside air is difficult to enter the heating type bottle body F before the air pressure detection type bottle cap B is screwed down in time, so that the gas detection result of the solid-liquid mixed heating reaction system to be detected can not generate deviation; therefore, the reaction gas generated by the solid-liquid mixed heating reaction bottle component to be detected enters the multi-position airflow selection valve 300 through the corresponding gas circulation hose 321, enters the transient mass spectrometer 900 through the gas flow channel communicated with the multi-position airflow selection valve 300 through the sample inlet pipe 910 for analysis, and is combined with the gas pressure change data of the reaction gas fed back in real time by the gas pressure sensor B20 on the gas pressure detection type bottle cap B to obtain the qualitative and/or quantitative gas detection result of the solid-liquid mixed heating reaction to be detected;
then, the gas two-way valve 800 of the detected solid-liquid mixed heating reaction bottle assembly is closed, and the power supply of the heating resistance wire of the heating seat F20 of the solid-liquid mixed heating reaction bottle assembly to be detected is disconnected through an external controller; controlling the multi-position gas flow selection valve 300 through an external controller, switching the gas flow channel of the multi-position gas flow selection valve to the gas flow channel only between the sample gas flow inlet end 320 and the sample gas flow outlet end 310 of the gas exchange reaction bottle assembly, simultaneously opening the gas two-way valve 800 of the gas exchange reaction bottle assembly, and continuously ventilating until the background signal detected by the transient mass spectrometer 900 shows that only a single inert gas exists, closing the gas two-way valve 800 of the gas exchange reaction bottle assembly;
the multi-position airflow selector valve 300 is controlled by an external controller, only the airflow channel between the sample airflow inlet end 320 and the sample airflow outlet end 310 of the next reaction bottle component to be detected is connected, and corresponding operations are performed according to the characteristics of the next reaction bottle component to be detected by referring to the similar detection method until online gas detection of all reaction bottle components to be detected on the embedded platform 200 is completed at one time, the transient mass spectrometer 900 is closed, and all power supplies are cut off.
It should be understood that the above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the technical solutions of the present invention, and it will be apparent to those skilled in the art that the above-mentioned descriptions can be added, substituted, changed or modified within the spirit and principles of the present invention, for example, the combined transient mass spectrometer can be replaced by a residual gas analyzer, and for example, a gas exchange reaction vial assembly composed of an injection type vial cap a and a general type vial body D, etc., and all such additions, substitutions, changes or modifications shall fall within the scope of the appended claims.
Claims (10)
1. The utility model provides an online gas detection device of many reaction systems of photocatalysis with transient state mass spectrometer allies oneself with, includes light source base, embedding platform and photocatalysis reaction bottle subassembly, and the embedding platform sets up on the light source base, and photocatalysis reaction bottle subassembly sets up on the embedding platform, its characterized in that:
a plurality of light sources used for irradiating the bottom of the photocatalysis reaction bottle component are arranged in the light source base;
the embedding platform is also provided with a multi-position airflow selection valve, the multi-position airflow selection valve is provided with a sample airflow outlet end and a plurality of sample airflow inlet ends, the sample airflow outlet end is communicated with the transient mass spectrometer through a sample inlet pipe, and each sample airflow inlet end is communicated with a photocatalytic reaction bottle assembly through a gas circulation hose;
one of the photocatalytic reaction bottle assemblies is only used for transmitting inert gas;
the multi-position gas flow selection valve is electrically connected with the external controller and used for selecting reaction gas generated in a certain photocatalytic reaction bottle component through the external controller and inputting the reaction gas into the transient mass spectrometer for analysis.
2. The photocatalytic multi-reaction-system online gas detection device used in combination with the transient mass spectrometer of claim 1, wherein: the multi-position gas flow selection valve is positioned at the central position of the embedding platform, and the plurality of photocatalytic reaction bottle assemblies are distributed at intervals around the multi-position gas flow selection valve.
3. The photocatalytic multi-reaction-system online gas detection device used in combination with the transient mass spectrometer of claim 2, wherein: the plurality of photocatalytic reaction bottle assemblies are symmetrically arranged on the periphery of the multi-position airflow selection valve at equal intervals by taking the central position of the embedded platform as the center.
4. The on-line gas detection device with a photocatalytic multi-reaction system for use with a transient mass spectrometer of claim 3, wherein: the number of the plurality of photocatalytic reaction bottle components is 3-8.
5. The photocatalytic multi-reaction-system online gas detection device used in combination with the transient mass spectrometer of claim 1, wherein: the embedding platform is provided with a first counter bore and a plurality of second counter bores, the first counter bore is positioned at the center of the top surface of the embedding platform, and the plurality of second counter bores are arranged around the first counter bore; the first counter bore is used for being installed in the multi-position airflow selection valve in a matching mode, each second counter bore is used for being installed in a bottle body of a photocatalytic reaction bottle assembly in a matching mode, and a first through hole used for supporting the periphery of the bottom face of the bottle body is coaxially formed in the bottom of each second counter bore.
6. The photocatalytic multi-reaction-system online gas detection device used in combination with the transient mass spectrometer of claim 5, wherein: the light source base is provided with a plurality of second through holes, a light source is arranged in each second through hole in a matching mode, and all the light sources are electrically connected with the external controller and used for selectively lighting the light sources needing photocatalytic reaction through the external controller; all the second through holes are positioned right below the corresponding first through holes, and the aperture of each second through hole is larger than that of each first through hole.
7. The photocatalytic multi-reaction-system online gas detection device used in combination with the transient mass spectrometer of claim 6, wherein: the light source adopts a high-power LED lamp or a xenon lamp of monochromatic light.
8. The photocatalytic multi-reaction-system online gas detection device used in combination with the transient mass spectrometer of claim 1, wherein: the center position department of embedding platform bottom surface is provided with regular polygon counter bore, and the center position department of light source base top surface corresponds is provided with the regular polygon boss of adaptation embedding regular polygon counter bore.
9. The photocatalytic multi-reaction-system online gas detection device used in combination with the transient mass spectrometer of claim 1, wherein: the light source base and the embedded platform are both made of non-transparent polyhexamethylene adipamide or PBT engineering plastics.
10. The photocatalytic multi-reaction-system online gas detection device used in combination with the transient mass spectrometer of claim 1, wherein: the gas circulation hose is made of a PVC pipe or a polyether-ether-ketone pipe.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117686050A (en) * | 2024-02-04 | 2024-03-12 | 宁德时代新能源科技股份有限公司 | Battery gas production detection system, method, electronic device and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060144126A1 (en) * | 2000-01-25 | 2006-07-06 | O'brien Robert J | Method and apparatus for sample analysis |
| CN102507761A (en) * | 2011-10-17 | 2012-06-20 | 中国科学院大气物理研究所 | System and method for measuring nitric oxide in a small amount of gas |
| US20140326045A1 (en) * | 2011-11-17 | 2014-11-06 | Shimadzu Corporation | Gas-liquid contact extraction method and apparatus |
| CN105823820A (en) * | 2015-11-13 | 2016-08-03 | 亚申科技研发中心（上海）有限公司 | Catalyst evaluating apparatus |
| CN109884168A (en) * | 2017-12-06 | 2019-06-14 | 中国科学院大连化学物理研究所 | A kind of device and method for catalytic reaction process on-line analysis |
| CN214703420U (en) * | 2021-03-25 | 2021-11-12 | 中山大学 | Photocatalytic multi-reaction-system online gas detection device combined with transient mass spectrometer |
-
2021
- 2021-03-25 CN CN202110318937.3A patent/CN112881507B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060144126A1 (en) * | 2000-01-25 | 2006-07-06 | O'brien Robert J | Method and apparatus for sample analysis |
| CN102507761A (en) * | 2011-10-17 | 2012-06-20 | 中国科学院大气物理研究所 | System and method for measuring nitric oxide in a small amount of gas |
| US20140326045A1 (en) * | 2011-11-17 | 2014-11-06 | Shimadzu Corporation | Gas-liquid contact extraction method and apparatus |
| CN105823820A (en) * | 2015-11-13 | 2016-08-03 | 亚申科技研发中心（上海）有限公司 | Catalyst evaluating apparatus |
| CN109884168A (en) * | 2017-12-06 | 2019-06-14 | 中国科学院大连化学物理研究所 | A kind of device and method for catalytic reaction process on-line analysis |
| CN214703420U (en) * | 2021-03-25 | 2021-11-12 | 中山大学 | Photocatalytic multi-reaction-system online gas detection device combined with transient mass spectrometer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117686050A (en) * | 2024-02-04 | 2024-03-12 | 宁德时代新能源科技股份有限公司 | Battery gas production detection system, method, electronic device and storage medium |
| CN117686050B (en) * | 2024-02-04 | 2024-06-07 | 宁德时代新能源科技股份有限公司 | Battery gas production detection system, method, electronic device and storage medium |
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