CN116973330B - Gas spectrum infrared analyzer - Google Patents
Gas spectrum infrared analyzer Download PDFInfo
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- CN116973330B CN116973330B CN202311188465.XA CN202311188465A CN116973330B CN 116973330 B CN116973330 B CN 116973330B CN 202311188465 A CN202311188465 A CN 202311188465A CN 116973330 B CN116973330 B CN 116973330B
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- 238000001228 spectrum Methods 0.000 title claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 238000005070 sampling Methods 0.000 claims abstract description 23
- 238000010183 spectrum analysis Methods 0.000 claims abstract description 20
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 230000000670 limiting effect Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 14
- 239000007789 gas Substances 0.000 description 50
- 238000009434 installation Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 230000009916 joint effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000002381 microspectrum Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
-
- 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
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to the technical field of spectrum infrared analyzers, in particular to a gas spectrum infrared analyzer which comprises a spectrum analysis device and a detection head, wherein the detection head is arranged at one end of the top of the spectrum analysis device, one side of the detection head is provided with a quantitative tube, one end of the bottom of the quantitative tube is fixedly communicated with an air outlet pipe, the air outlet pipe is fixedly communicated with the spectrum analysis device, a first piston is connected inside the quantitative tube in a sliding manner, one end of the quantitative tube is connected with a T-shaped plate in a sliding manner, and the T-shaped plate consists of a square rod and a square plate arranged at one end of the square rod far away from the first piston. According to the invention, the sampling mechanism is arranged, so that the two air inlet assemblies can be switched in the use process, residual air in the air inlet pipe is prevented from being mixed in the air sampled by the quantitative pipe, the accuracy of gas detection is affected, and the practicability of the gas spectrum infrared analyzer can be effectively improved.
Description
Technical Field
The invention belongs to the technical field of spectrum infrared analyzers, and particularly relates to a gas spectrum infrared analyzer.
Background
The gas micro spectrum analyzer solves the problems of ultraviolet band environment and multi-component cross interference by utilizing a differential absorption spectrum technology, a multiple reflection pool technology and a micro ultraviolet spectrum detection technology, and realizes the field detection of multi-component gases such as benzene, toluene, butadiene, hydrogen sulfide, ammonia, chlorine, carbon disulfide, formaldehyde, sulfur dioxide, nitrogen dioxide and the like discharged by industrial sources; the gas analyzer is a compact, high-stability and high-resolution innovative gas analyzer, has low cost, and can be widely applied to monitoring of characteristic gases in economic development areas, industrial parks and chemical parks.
The Chinese patent with publication number of CN215768223U discloses a miniature spectrum analyzer for characteristic gas in industrial park, which solves the problems that the miniature spectrum analyzer has poor operation effect and can not realize rapid quantitative gas detection when quantitative gas detection is needed through cooperation between structures, but the analyzer still has the following problems in the use process: due to the installation position of the spring tube, when the quantitative tube extrudes gas to the spectrum analysis device, the gas in the quantitative tube cannot be completely extruded, so that a part of gas can remain in the quantitative tube, and the part of gas can be mixed with the sampled gas when the quantitative tube performs the next gas sampling, so that the accuracy of gas detection is affected.
Disclosure of Invention
The invention provides a gas spectrum infrared analyzer for solving the problems in the background art, aiming at the problems that in the prior art, the gas in a quantitative tube cannot be completely extruded, so that a part of gas remains in the quantitative tube, and the part of gas is mixed with the sampled gas when the quantitative tube performs the next gas sampling, and the accuracy of gas detection is affected.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a gas spectrum infrared analyzer, includes spectral analysis device and detects the head, detect the head and install at spectral analysis device's top one end, one side that detects the head is provided with quantitative pipe, quantitative pipe's bottom one end fixedly communicates has the outlet duct, and outlet duct and spectral analysis device fixed intercommunication, quantitative pipe's inside sliding connection has first piston, quantitative pipe's one end sliding connection has the T shaped plate, and the T shaped plate comprises a square pole and the square board that sets up in square pole and keep away from first piston one end, square plate sets up the outside at quantitative pipe in the T shaped plate, spectral analysis device's one side is provided with the magic tape, quantitative pipe is kept away from one side of square in the T shaped plate and is provided with the sampling mechanism that can improve gas spectrum infrared analyzer detection accuracy.
Further, the sampling mechanism includes the support frame of fixed mounting inside the outlet duct, the inside sliding connection of support frame has the I-plate, and the I-plate has two discs and sets up the round bar constitution between two discs, two discs in the I-plate set up the upper and lower both sides at the support frame respectively, the top fixedly connected with first spring of support frame, and first spring setting is between support frame and one of them disc, first spring activity cup joints the outside of round bar in the I-plate, the top one end fixedly connected with fixed plate and the mounting panel of spectral analysis device, and the mounting panel sets up between buret and detection head, the inside rotation of mounting panel is connected with the pivot, one side that square plate was kept away from to the mounting panel is provided with installing frame and filter screen, and filter screen fixed mounting is in the inside of installing frame, one side fixedly connected with fixed cylinder that the fixed plate is close to the mounting panel, the one end and the fixed cylinder rotation of mounting panel are connected, be provided with the collar between fixed cylinder and the installing frame, the collar is fixed cup joint in the outside of collar, the inside symmetry of two ring and two air inlet component and two air inlet set up with two symmetrical air inlet component.
Further, the subassembly that admits air includes the intake pipe that uses with the cooperation of ration pipe, and the one end and the filter screen fixed connection of fixed plate are kept away from to the intake pipe, the inside fixed mounting of intake pipe has the mounting bracket, and mounting bracket and support frame are by a ring and set up a plurality of protruding poles in the ring outside and constitute, the inside fixed mounting of mounting bracket has the installation tube, the inside sliding connection of installation tube has T shape piece, and the T shape piece comprises a disc and the round bar that sets up in the ring and keep away from mounting panel one end, the disc slip in the T shape piece sets up in the inside of installation tube, the one end fixedly connected with second spring that the fixed plate was kept away from to the T shape piece, and the second spring sets up in the inside of installation tube, the one end that the intake pipe is close to the fixed plate is provided with the inlet port, the one end that the mounting panel was kept away from to the installation tube extends to the outside and fixedly connected with shrouding that uses with and the cooperation of inlet port.
Further, a first bevel gear is arranged on one side, far away from the fixed plate, of the mounting plate, one end, far away from the fixed plate, of the rotating shaft penetrates through the mounting plate and is fixedly connected with the first bevel gear, a transverse plate is arranged above the first bevel gear, the transverse plate is fixedly connected with the mounting plate through a triangular reinforcing plate, a pair of unidirectional bearings are arranged in the transverse plate, and unidirectional rotating assemblies are arranged below the two unidirectional bearings;
the unidirectional rotation subassembly is including fixedly cup jointing the spacing ring outside two unidirectional bearing axostylus axostyles respectively, two the outer activity of spacing ring has cup jointed the link, two equal fixedly connected with sprocket of bottom one end of link, two the outside joint activity of sprocket has cup jointed a chain, two the below of spacing ring all is provided with ratchet pawl mechanism, ratchet in the ratchet pawl mechanism is fixed cup joints in the outside of unidirectional bearing axostylus axostyle, pawl in the ratchet pawl mechanism is installed inside the mounting groove of sprocket inboard, one of them the bottom one end fixedly connected with and the second bevel gear of first bevel gear meshing of sprocket, the top of buret is provided with T shape pole, and the one end that the fixed plate was kept away from to T shape pole and the square plate fixed connection in the T shaped plate, the one end and the outside fixed connection of chain of T shape pole.
Further, an exhaust mechanism capable of avoiding residual gas samples in the air inlet pipe and the quantitative pipe is arranged on one side, away from the mounting plate, of the filter screen;
the exhaust mechanism comprises two air cylinders, the two air cylinders and the two air inlet pipes are arranged in a one-to-one staggered mode, the two air cylinders are fixedly arranged inside reserved holes on the surface of the mounting ring, the two air inlet pipes are fixedly connected with second pistons in a sliding mode, one side of each second piston, which is far away from the fixing plate, is fixedly connected with a driving rod, the two driving rods are close to one side, which is close to the fixing cylinder, of each driving rod, a driving groove matched with the round pin is formed in the outer portion of the fixing cylinder, the round pin is slidably arranged in the driving groove, one side, which is far away from the fixing plate, of each air cylinder is fixedly connected with an air suction pipe and an air suction pipe, one end, which is far away from the air suction pipe, of each air suction pipe is fixedly connected with the two air inlet pipes, the two air discharge fans matched with the air suction pipes are arranged in the air discharge fans, and the air discharge fans are rotatably arranged on one side, which is close to the fixing pipes, of the air suction pipes, of the air discharge fans are installed on one side, which is close to the fixing pipes.
Further, the cross section shape of link is L shape, the outside of spacing ring is provided with the recess that uses with the link cooperation.
Further, the cross section shape of the T-shaped rod is T-shaped, and the mounting frame consists of two circular rings and four connecting rods arranged between the two circular rings.
Further, the driving rod is a square rod, the driving groove is composed of two straight grooves of two inclined grooves, and the two inclined grooves are arranged between the two straight grooves.
Further, two locating rods are fixedly connected to one side of the spectrum analysis device through two pairs of fixing blocks, a poking plate is sleeved on the outer portion of the locating rods in a co-movable mode, the poking plate is arranged on one side, away from the detection head, of the quantitative tube, one end, away from the chain, of the T-shaped rod is fixedly connected with the poking plate, two tension springs are fixedly connected to one side, away from the magic tape, of the poking plate, and are movably sleeved on the outer portions of the two locating rods, and two tension springs are fixedly connected with the fixing blocks, away from one end, away from the poking plate, of the tension springs.
The beneficial effects of the invention are as follows:
1. according to the invention, the sampling mechanism is arranged, so that the two air inlet assemblies can be switched in the use process, residual air in the air inlet pipe is prevented from being mixed in the air sampled by the quantitative pipe, the accuracy of gas detection is affected, and the practicability of the gas spectrum infrared analyzer can be effectively improved.
2. The invention can be matched with the sampling mechanism by arranging the exhaust mechanism, so that the residual gas in the air inlet assembly is cleaned more cleanly, the accuracy of the sampling mechanism for sampling the gas can be further improved, and the overall practicability of the sampling mechanism is improved; through being equipped with dial plate, extension spring and locating lever, can paste the bandage cooperation with the magic, realize the single hand operation of analysis appearance, can effectively improve the convenience that the analysis appearance used, further improve the practicality of gas spectrum infrared analysis appearance.
Drawings
FIG. 1 shows a front view of an embodiment of the present invention;
FIG. 2 is a front view of a part of the structure of an embodiment of the present invention;
FIG. 3 illustrates a rear view of the structure of FIG. 2 in accordance with an embodiment of the present invention;
FIG. 4 is a partially exploded view of the structure of FIG. 2 according to an embodiment of the present invention;
FIG. 5 illustrates a cross-sectional plan view of a portion of the structure of FIG. 5 in accordance with an embodiment of the present invention;
FIG. 6 is a schematic diagram showing the disassembly of the outlet pipe and its internal structure according to the embodiment of the present invention;
FIG. 7 illustrates a partial structure split schematic diagram of FIG. 4 in accordance with an embodiment of the invention;
fig. 8 is a schematic diagram showing the disassembly of an air inlet pipe and its internal structure according to an embodiment of the present invention;
FIG. 9 illustrates a bottom perspective view of a cross plate with a unidirectional rotation assembly in accordance with an embodiment of the present invention;
FIG. 10 illustrates a partial structure split schematic diagram of FIG. 9 in accordance with an embodiment of the invention;
FIG. 11 is a sectional plan view of an air cylinder and air inlet tube of an embodiment of the present invention;
in the figure: 1. a spectrum analysis device; 2. a detection head; 3. a metering tube; 4. an air outlet pipe; 5. a first piston; 6. a magic tape; 7. a sampling mechanism; 71. a support frame; 72. an I-shaped plate; 73. a first spring; 74. a fixing plate; 75. a mounting plate; 76. a rotating shaft; 77. a mounting frame; 78. a filter screen; 79. a fixed cylinder; 80. a mounting ring; 81. an air intake assembly; 811. an air inlet pipe; 812. a mounting frame; 813. installing a pipe; 814. a T-shaped block; 815. a second spring; 816. an air inlet hole; 817. a sealing plate; 82. a first bevel gear; 83. a cross plate; 84. a one-way bearing; 85. a unidirectional rotating assembly; 851. a limiting ring; 852. hanging rings; 853. a sprocket; 854. a chain; 855. a ratchet pawl mechanism; 856. a second bevel gear; 857. a T-bar; 9. an exhaust mechanism; 91. an air cylinder; 92. a second piston; 93. a driving rod; 94. round pins; 95. a driving groove; 96. an air suction pipe; 97. a gas lance; 98. an exhaust fan; 10. a positioning rod; 11. a poking plate; 12. a tension spring; 13. t-shaped plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
The invention provides a gas spectrum infrared analyzer, as shown in fig. 1 to 11, which comprises a spectrum analyzer 1 and a detection head 2, wherein the detection head 2 is arranged at one end of the top of the spectrum analyzer 1, one side of the detection head 2 is provided with a quantitative tube 3, one end of the bottom of the quantitative tube 3 is fixedly communicated with an air outlet tube 4, the air outlet tube 4 is fixedly communicated with the spectrum analyzer 1, a first piston 5 is slidingly connected inside the quantitative tube 3, one end of the quantitative tube 3 is slidingly connected with a T-shaped plate 13, the T-shaped plate 13 consists of a square rod and a square plate arranged at one end of the square rod far away from the first piston 5, the square plate in the T-shaped plate 13 is arranged outside the quantitative tube 3, one side of the spectrum analyzer 1 is provided with a magic tape 6, and one side of the quantitative tube 3 far away from the square plate in the T-shaped plate 13 is provided with a sampling mechanism 7 capable of improving the detection accuracy of the gas spectrum infrared analyzer.
The sampling mechanism 7 comprises a supporting frame 71 fixedly installed inside the air outlet pipe 4, an I-shaped plate 72 is connected inside the supporting frame 71 in a sliding manner, the I-shaped plate 72 is provided with two circular discs and a circular rod arranged between the two circular discs, the two circular discs in the I-shaped plate 72 are respectively arranged at the upper side and the lower side of the supporting frame 71, a first spring 73 is fixedly connected above the supporting frame 71, the first spring 73 is arranged between the supporting frame 71 and one circular disc, the first spring 73 is movably sleeved outside the circular rod in the I-shaped plate 72, one end of the top of the spectrum analysis device 1 is fixedly connected with a fixed plate 74 and a mounting plate 75, the mounting plate 75 is arranged between the quantitative pipe 3 and the detection head 2, a rotating shaft 76 is connected inside the mounting plate 75 in a rotating manner, one side of the mounting plate 75 far away from the T-shaped plate 13 is provided with a mounting frame 77 and a filter screen 78, the filter screen 78 is fixedly installed inside the mounting frame 77, one side of the fixing plate 74 close to the mounting plate 75 is fixedly connected with a fixing cylinder 79, one end of the rotating shaft 76 far away from the mounting plate 75 is rotatably connected with the fixing cylinder 79, a fixing cylinder 79 is movably sleeved outside the rotating shaft 79, a rotating shaft 80 is provided with the mounting ring 80 is provided with a rotating shaft 80, and two air inlet components are symmetrically arranged inside the two air inlet components 81 are symmetrically arranged on the two air inlet components, and the two air inlet components are symmetrically arranged on the two air inlet components and the two air inlet components are in a matched mode.
The air intake assembly 81 comprises an air intake pipe 811 matched with the quantitative pipe 3, one end of the air intake pipe 811 far away from the fixed plate 74 is fixedly connected with the filter screen 78, an installation frame 812 is fixedly installed in the air intake pipe 811, the installation frame 812 and the support frame 71 are composed of a circular ring and a plurality of protruding rods arranged on the outer side of the circular ring, an installation pipe 813 is fixedly installed in the installation frame 812, a T-shaped block 814 is slidingly connected with the inner portion of the installation pipe 813 and is composed of a disc and a circular rod arranged at one end of the circular ring far away from the installation plate 75, the disc in the T-shaped block 814 is slidingly arranged in the inner portion of the installation pipe 813, one end of the T-shaped block 814 far away from the fixed plate 74 is fixedly connected with a second spring 815, the second spring 815 is arranged in the inner portion of the installation pipe 813, one end of the air intake pipe 811 near the fixed plate 74 is provided with an air intake hole 816, and one end of the T-shaped block 814 far away from the installation plate 75 extends to the outer portion of the installation pipe 813 and is fixedly connected with a sealing plate 817 matched with 816.
One side of the mounting plate 75 away from the fixed plate 74 is provided with a first bevel gear 82, one end of the rotating shaft 76 away from the fixed plate 74 penetrates through the mounting plate 75 and is fixedly connected with the first bevel gear 82, a transverse plate 83 is arranged above the first bevel gear 82, the transverse plate 83 is fixedly connected with the mounting plate 75 through a triangular reinforcing plate, a pair of one-way bearings 84 are mounted in the transverse plate 83, and a one-way rotating assembly 85 is arranged below the two one-way bearings 84.
The unidirectional rotation subassembly 85 includes fixed spacing ring 851 that cup joints in the outside of two unidirectional bearing 84 axostylus axostyle respectively, the link 852 has been cup jointed in the outside activity of two spacing rings 851, the equal fixedly connected with sprocket 853 of bottom one end of two links 852, a chain 854 has been cup jointed in the outside joint activity of two sprockets 853, the below of two spacing rings 851 all is provided with ratchet pawl mechanism 855, ratchet in the ratchet pawl mechanism 855 is fixed cup joints in the outside of unidirectional bearing 84 axostylus axostyle, pawl in the ratchet pawl mechanism 855 is installed in the inside mounting groove of sprocket 853, the bottom one end fixedly connected with of one of them sprocket 853 and the second bevel gear 856 of first bevel gear 82 meshing, the top of quantitative pipe 3 is provided with T shape pole 857, and the one end that the fixed plate 74 was kept away from to T shape pole 857 and square plate fixed connection in the T shaped plate 13, one end and the outside fixed connection of chain 854.
The cross section of the hanging ring 852 is L-shaped, and a groove matched with the hanging ring 852 is arranged on the outer side of the limiting ring 851.
The T-shaped rod 857 has a T-shaped cross-sectional shape, and the mounting frame 77 is composed of two circular rings and four connecting rods disposed between the two circular rings.
When the analyzer is used, the T-shaped plate 13 can be pulled to move in a direction away from the fixed plate 74, so that the T-shaped plate 13 drives the first piston 5 to synchronously move in the quantitative tube 3, in the piston moving process, the sealing plate 817 is driven to move in a direction close to the quantitative tube 3 by utilizing the action of negative pressure, the sealing plate 817 presses the second spring 815 through the T-shaped block 814, and therefore the sealing effect of the sealing plate 817 on the air inlet 816 at one end of the quantitative tube 3 is relieved, and at the moment, the piston sucks gas to be detected into the quantitative tube 3 through the air inlet 816.
During detection, only the T-shaped plate 13 is pushed to move towards the direction close to the fixed plate 74, so that the T-shaped plate 13 drives the first piston 5 to synchronously move in the quantitative tube 3, gas in the quantitative tube 3 is extruded in the piston moving process, at the moment, the sealing plate 817 reversely moves and resets under the stretching and resetting action of the second spring 815 to seal the air inlet 816, the I-shaped plate 72 moves downwards under the extrusion action of the gas and extrudes the first spring 73 to release the sealing action of the I-shaped plate 72 on the opening above the air outlet tube 4, so that the gas extruded in the quantitative tube 3 enters the spectrum analysis device 1 through the air outlet tube 4, and infrared spectrum analysis is performed on the gas by the spectrum analysis device 1.
When the T-shaped plate 13 moves in a direction away from the fixed plate 74, the T-shaped plate 13 drives the T-shaped rod 857 to synchronously move, so that the T-shaped rod 857 drives the two sprockets 853 to rotate anticlockwise through the chain 854, so that the two sprockets 853 drive the one-way bearing 84 to synchronously rotate anticlockwise through the ratchet pawl mechanism 855, thereby driving the second bevel gear 856 to rotate anticlockwise through one of the sprockets 853, driving the rotating shaft 76 to rotate anticlockwise through the meshing effect between the second bevel gear 856 and the first bevel gear 82, so that the rotating shaft 76 drives the mounting ring 80 to synchronously rotate 180 degrees, so that the mounting ring 80 drives the two air inlet assemblies 81 to synchronously rotate, and in the process of sucking air into the quantitative tube 3, the two air inlet assemblies 81 are switched, so that the air inside the air inlet assemblies 81 is prevented from being remained for last sampling, and the accuracy of gas detection is affected.
When the T-shaped plate 13 moves in a direction approaching to the fixed plate 74, the T-shaped plate 13 drives the T-shaped rod 857 to move synchronously, so that the T-shaped rod 857 drives the two sprockets 853 to rotate clockwise through the chain 854, at this time, the two ratchets are difficult to rotate under the limiting action of the single bearing, so that when the two sprockets 853 rotate, the two pawls are driven to slide outside the two ratchets, and simultaneously, the sprocket 853 drives the hanging ring 852 to rotate outside the limiting ring 851, so that one of the sprockets 853 cannot drive the first bevel gear 82 to rotate through the second bevel gear 856, and thus, when the quantitative tube 3 extrudes gas into the spectrum analyzer 1, the gas inlet assembly 81 is kept motionless.
Above-mentioned pivot 76 passes through collar 80 and drives subassembly 81 rotation in-process that admits air, and pivot 76 passes through mounting frame 77 and drives filter screen 78 synchronous rotation for filter screen 78 is along with subassembly 81 synchronous rotation that admits air, in order to make filter screen 78 be close to the opening shutoff of subassembly 81 one end that admits air with quantitative pipe 3 all the time at quantitative pipe 3 in the in-process of gas of 3 suction, filters the air that will get into quantitative pipe 3, prevents that the bulk impurity from getting into quantitative pipe 3 at quantitative pipe 3 in-process that samples, appears the phenomenon that the bulk impurity influences sampling mechanism 7 result of use.
The invention can switch the two air inlet assemblies 81 in the use process by arranging the sampling mechanism 7, so that the residual air in the air inlet pipe 811 is prevented from being mixed in the air sampled by the quantitative pipe 3, the accuracy of air detection is affected, and the practicability of the gas spectrum infrared analyzer can be effectively improved.
As shown in fig. 1 to 11, the side of the filter screen 78 remote from the mounting plate 75 is provided with an exhaust mechanism 9 capable of avoiding residual gas samples inside the intake pipe 811 and the dosing tube 3.
The exhaust mechanism 9 comprises two air cylinders 91, and the two air cylinders 91 and two air inlet pipes 811 are arranged in a staggered mode one by one, the two air cylinders 91 are fixedly installed inside reserved holes in the surface of the mounting ring 80, the second pistons 92 are fixedly connected to the two air inlet pipes 811 in a sliding mode, one sides of the two second pistons 92 away from the fixing plate 74 are fixedly connected with driving rods 93, one sides of the two driving rods 93 close to the fixing cylinder 79 are fixedly connected with round pins 94, driving grooves 95 matched with the round pins 94 are formed in the outer portions of the fixing cylinder 79, the round pins 94 are slidably arranged in the driving grooves 95, air suction pipes 96 and air suction pipes 97 are fixedly connected to one sides of the air cylinders 91 away from the fixing plate 74, one ends of the air suction pipes 96 and the air outlet pipes 4 are fixedly connected with two air suction pipes 811, one ends of the two air suction pipes 97 away from the air suction fans 97 are respectively, exhaust fans 98 matched with the two air suction pipes 97 are rotatably installed on one sides of the mounting pipes 813 close to the fixing pipe 3.
The driving rod 93 is a square rod, the driving groove 95 is composed of two straight grooves of two inclined grooves, and the two inclined grooves are arranged between the two straight grooves.
One side of the spectrum analysis device 1 is fixedly connected with two positioning rods 10 through two pairs of fixed blocks, one shifting plate 11 is sleeved on the outer parts of the two positioning rods 10 in a co-movable mode, the shifting plate 11 is arranged on one side, far away from the detection head 2, of the quantitative tube 3, one end, far away from the chain 854, of the T-shaped rod 857 is fixedly connected with the shifting plate 11, two tension springs 12 are fixedly connected on one side, far away from the magic tape 6, of the shifting plate 11, the two tension springs 12 are movably sleeved on the outer parts of the two positioning rods 10, and one end, far away from the shifting plate 11, of the two tension springs 12 is fixedly connected with the fixed blocks.
In the process of rotating the mounting ring 80, the two air cylinders 91 are driven to synchronously rotate, so that the two round pins 94 respectively synchronously rotate along with the air cylinders 91 and slide in the driving groove 95, when one of the air inlet pipes 811 rotates to one side of the dosing tube 3, one of the round pins 94 moves away from the mounting plate 75 under the action of the driving groove 95, so that the round pin 94 drives the second piston 92 to synchronously move in the air cylinders 91 by using the overdrive plate, at the moment, the one-way valve in the air suction pipe 96 is opened, the one-way valve in the air injection pipe 97 is closed, and in the moving process, the piston sucks external air into the air cylinders 91 through the air suction pipe 96; when one of the air inlet pipes 811 rotates to a position corresponding to the orifice of the dosing tube 3, one of the round pins 94 moves towards a direction close to the mounting plate 75 under the action of the driving groove 95, so that the round pin 94 drives the second piston 92 to synchronously move in the air cylinder 91 by using the overdrive plate, at this time, the one-way valve in the air suction pipe 96 is closed, the one-way valve in the air injection pipe 97 is opened, and the air in the air cylinder 91 is injected to the air discharge fan 98 by the piston in the moving process through the air injection pipe 97, so that the air discharge fan 98 rotates under the action of air flow, the air circulation in the air inlet pipe 811 is quickened in the rotating process of the air discharge fan 98, and the residual air in the air inlet pipe 811 is discharged more cleanly, so that the accuracy of the analyzer is ensured in the continuous process of carrying out infrared spectrum analysis on the air.
Before the analyzer is used, a hand can be inserted between the magic tape 6 and the spectrum analyzer 1, so that the palm of the hand faces the spectrum analyzer 1, the magic tape 6 is adaptively adjusted, then, the pulling plate 11 can be pulled by a finger to move towards the direction close to the magic tape 6, so that the pulling plate 11 slides outside the two positioning rods 10 and stretches the tension spring 12, the pulling plate 11 drives the T-shaped rods 857 to move synchronously, the T-shaped plates 13 and the chains 854 are driven to move synchronously through the T-shaped rods 857, and then the gas sampling operation is realized by a single hand.
When the T-shaped plate 13 is pushed to extrude the air in the quantitative tube 3, the shifting plate 11 can be directly loosened, so that the shifting plate 11 is reversely moved and reset under the shrinkage and reset action of the tension spring 12, the shifting plate 11 drives the T-shaped plate 13 and the chain 854 to synchronously reversely move through the T-shaped rod 857, and the air in the quantitative tube 3 is extruded by utilizing the cooperation between the structures, so that the operation of air extrusion is completed under the condition of one-hand operation.
The invention can be matched with the sampling mechanism 7 by arranging the exhaust mechanism 9, so that the residual gas in the air inlet assembly 81 is cleaned more cleanly, the accuracy of the sampling mechanism 7 for sampling the gas can be further improved, and the overall practicability of the sampling mechanism 7 is improved; through being equipped with plectrum 11, extension spring 12 and locating lever 10, can with the cooperation of magic tape bandage 6, realize the single hand operation of analysis appearance, can effectively improve the convenience that the analysis appearance used, further improve the practicality of gas spectrum infrared analysis appearance.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (6)
1. The utility model provides a gas spectrum infrared analyzer, includes spectral analysis device (1) and detects head (2), its characterized in that: the detection head (2) is arranged at one end of the top of the spectrum analysis device (1), one side of the detection head (2) is provided with a quantitative pipe (3), one end of the bottom of the quantitative pipe (3) is fixedly communicated with an air outlet pipe (4), the air outlet pipe (4) is fixedly communicated with the spectrum analysis device (1), a first piston (5) is slidingly connected to the inside of the quantitative pipe (3), one end of the quantitative pipe (3) is slidingly connected with a T-shaped plate (13), the T-shaped plate (13) consists of a square rod and a square plate arranged at one end of the square rod far away from the first piston (5), the square plate in the T-shaped plate (13) is arranged outside the quantitative pipe (3), one side of the spectrum analysis device (1) is provided with a magic tape (6), and one side of the square plate in the T-shaped plate (3) far away from the magic tape (7) is provided with a sampling mechanism (7) capable of improving the detection accuracy of the gas spectrum infrared analyzer;
the sampling mechanism (7) comprises a support frame (71) fixedly arranged in the air outlet pipe (4), an I-shaped plate (72) is fixedly connected to the inside of the support frame (71) in a sliding manner, the I-shaped plate (72) is provided with two circular discs and a circular rod arranged between the two circular discs, the two circular discs in the I-shaped plate (72) are respectively arranged on the upper side and the lower side of the support frame (71), a first spring (73) is fixedly connected to the upper side of the support frame (71), the first spring (73) is arranged between the support frame (71) and one circular disc, the first spring (73) is movably sleeved on the outside of the circular rod in the I-shaped plate (72), one end of the top of the spectrum analysis device (1) is fixedly connected with a fixed plate (74) and a mounting plate (75), the mounting plate (75) is arranged between the quantitative tube (3) and the detection head (2), a rotating shaft (76) is connected to the inside of the mounting plate (75), one side, far away from the middle of the T (13), of the mounting plate (75) is provided with a mounting frame (77) and a filter screen (78), the filter screen (77) is fixedly connected to one side of the fixed plate (79) which is fixedly sleeved on the outside of the filter screen (77), one end of the rotating shaft (76) far away from the mounting plate (75) is rotationally connected with the fixed cylinder (79), a mounting ring (80) is arranged between the fixed cylinder (79) and the mounting frame (77), the mounting ring (80) is fixedly sleeved outside the rotating shaft (76), two air inlet components (81) are symmetrically and fixedly arranged inside the mounting ring (80), and mounting holes matched with the two air inlet components (81) are formed in the surface of the mounting ring (80);
the air inlet assembly (81) comprises an air inlet pipe (811) matched with the metering pipe (3), one end of the air inlet pipe (811) far away from the fixed plate (74) is fixedly connected with the filter screen (78), a mounting frame (812) is fixedly arranged in the air inlet pipe (811), the mounting frame (812) and the supporting frame (71) are composed of a circular ring and a plurality of convex rods arranged on the outer side of the circular ring, a mounting pipe (813) is fixedly arranged in the mounting frame (812), a T-shaped block (814) is slidably connected in the mounting pipe (813), the T-shaped block (814) is composed of a disc and a round rod arranged at one end of the circular ring far away from the mounting plate (75), the disc in the T-shaped block (814) is slidably arranged in the mounting pipe (813), one end of the T-shaped block (814) far away from the fixed plate (74) is fixedly connected with a second spring (815), the second spring (815) is arranged in the inner part of the mounting pipe (813), one end of the air inlet pipe (811) near the fixed plate (74), and the T-shaped block (814) is arranged at one end of the air inlet pipe (811) near the fixed plate (74), and the end of the T-shaped block (814) is far away from the mounting plate (75) and is fixedly connected with the outer end of the mounting plate (813) through the sealing plate (813).
A first bevel gear (82) is arranged on one side, far away from the fixed plate (74), of the mounting plate (75), one end, far away from the fixed plate (74), of the rotating shaft (76) penetrates through the mounting plate (75) and is fixedly connected with the first bevel gear (82), a transverse plate (83) is arranged above the first bevel gear (82), the transverse plate (83) is fixedly connected with the mounting plate (75) through a triangular reinforcing plate, a pair of unidirectional bearings (84) are arranged in the transverse plate (83), and unidirectional rotating assemblies (85) are arranged below the two unidirectional bearings (84);
the unidirectional rotation subassembly (85) is including fixed spacing ring (851) of cup jointing outside at two unidirectional bearing (84) axostylus axostyles respectively, two the outside activity of spacing ring (851) cup joints link (852), two equal fixedly connected with sprocket (853) of bottom one end of link (852), two the outside co-activity of sprocket (853) cup joints a chain (854), two the below of spacing ring (851) all is provided with ratchet pawl mechanism (855), ratchet in ratchet pawl mechanism (855) is fixed cup joints in the outside of unidirectional bearing (84) axostylus axostyle, pawl in ratchet pawl mechanism (855) is installed inside the mounting groove of sprocket (853), one of them sprocket (853) bottom one end fixedly connected with first bevel gear (82) second bevel gear (856), the top of quantifying pipe (3) is provided with T shape pole (857), and the one end that T shape pole (857) kept away from fixed plate (74) is fixed with T13 in the side fixed connection of T shape pole (857), one end fixed plate (854).
2. A gas spectrum infrared analyzer according to claim 1, characterized in that the side of the filter screen (78) remote from the mounting plate (75) is provided with an exhaust mechanism (9) capable of avoiding residual gas samples inside the gas inlet pipe (811) and the dosing tube (3);
the exhaust mechanism (9) comprises two air cylinders (91), the two air cylinders (91) and two air inlet pipes (811) are arranged in a staggered mode, the two air cylinders (91) are fixedly arranged in reserved holes on the surface of a mounting ring (80), the two air cylinders (91) are fixedly connected with a second piston (92) in a sliding mode, the two second pistons (92) are fixedly connected with a driving rod (93) on one side, far away from a fixing plate (74), of the second piston (92), round pins (94) are fixedly connected to one side, close to the fixing cylinder (79), of the driving rod (93), driving grooves (95) matched with the round pins (94) are formed in the outer portion of the fixing cylinder (79), the round pins (94) are arranged in the driving grooves (95) in a sliding mode, one side, far away from the fixing plate (74), of the air cylinders (91) is fixedly connected with an air suction pipe (96) and an air outlet pipe (97), the inner portion, far away from the fixing plate (74), of the two air outlet pipes (97) is fixedly connected with a check valve, one end, far away from the fixing plate (91), of the air inlet pipe (97) is fixedly connected with the two air inlet pipes (811) respectively, and the two air inlet pipes (811) are fixedly connected with the inner air inlet pipes (97), and the exhaust fan (98) is rotatably arranged on one side of the mounting pipe (813) close to the metering pipe (3).
3. The gas spectrum infrared analyzer according to claim 2, wherein the cross-section of the hanging ring (852) is L-shaped, and a groove matched with the hanging ring (852) is arranged on the outer side of the limiting ring (851).
4. A gas spectrum infrared analyser according to claim 3, wherein the cross-sectional shape of the T-shaped rod (857) is T-shaped, and the mounting frame (77) consists of two circular rings and four connecting rods arranged between the two circular rings.
5. A gas spectrum infrared analyzer according to claim 4, characterized in that the driving rod (93) is a square rod, the driving groove (95) is composed of two straight grooves of two inclined grooves, and the two inclined grooves are arranged between the two straight grooves.
6. The gas spectrum infrared analyzer according to claim 5, wherein one side of the spectrum analyzer (1) is fixedly connected with two positioning rods (10) through two pairs of fixing blocks, two positioning rods (10) are sleeved with a pulling plate (11) in a co-movable mode, the pulling plate (11) is arranged on one side, away from the detection head (2), of the quantitative tube (3), one end, away from the chain (854), of the T-shaped rod (857) is fixedly connected with the pulling plate (11), one side, away from the magic tape (6), of the pulling plate (11) is fixedly connected with two tension springs (12), the two tension springs (12) are movably sleeved on the outer parts of the two positioning rods (10), and one end, away from the pulling plate (11), of the two tension springs (12) is fixedly connected with the fixing blocks.
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