CN113655184B - Concentration detection device for waste gas treatment that can intelligently retrieve - Google Patents

Concentration detection device for waste gas treatment that can intelligently retrieve Download PDF

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Publication number
CN113655184B
CN113655184B CN202111075623.1A CN202111075623A CN113655184B CN 113655184 B CN113655184 B CN 113655184B CN 202111075623 A CN202111075623 A CN 202111075623A CN 113655184 B CN113655184 B CN 113655184B
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detection
fixedly connected
waste gas
exhaust
bins
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CN113655184A (en
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谢金林
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Shenzhen Xicheng Environmental Protection Technology Co ltd
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Shenzhen Xicheng Environmental Protection Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • G01N33/0009General constructional details of gas analysers, e.g. portable test equipment
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
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  • General Health & Medical Sciences (AREA)
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Abstract

The invention relates to the technical field of waste gas treatment and discloses an intelligent recyclable concentration detection device for waste gas treatment, which comprises a base, wherein an outer frame is fixedly connected to the top of the base, a plurality of detection gas bins are arranged in the outer frame, a switching mechanism is arranged on the outer frame, a detection mechanism is arranged on the switching mechanism, the switching mechanism comprises two guide rails and a vertical frame, and a plurality of fixed iron cores are fixedly connected to the surfaces of one side of the inner parts of the two guide rails; according to the invention, the plurality of detection gas bins are arranged, the air pump is used for leading the waste gas at different positions into the plurality of detection gas bins, then the coil is sequentially switched on and off, the iron block is attracted to drive the stand to move, the air cylinder is opened to open the movable cover, and then the first electric push rod is used for extending the probe into the detection gas bins for detection, so that the plurality of detection gas bins can be sequentially detected, the detection accuracy is improved, and the waste gas is recovered through the waste gas collecting bin, so that the environment is prevented from being polluted.

Description

Concentration detection device for waste gas treatment that can intelligently retrieve
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to an intelligent recyclable concentration detection device for waste gas treatment.
Background
The waste gas treatment mainly refers to the treatment of industrial waste gas such as dust particles, smoke dust, peculiar smell gas and toxic and harmful gas generated in industrial sites, common waste gas purification comprises factory smoke dust waste gas purification, workshop dust waste gas purification, organic waste gas purification, waste gas peculiar smell purification, acid-base waste gas purification, chemical waste gas purification and the like, and the concentration of the waste gas can be detected by using a probe in the waste gas treatment process so as to facilitate the treatment;
in prior art, concentration detection device for exhaust-gas treatment is when using, and the device is inhaled waste gas in the air cavity, utilizes the probe to detect, but because waste gas has mobility, leads to waste gas diffusion to different positions easily, and the probe has reduced the accuracy when detecting the waste gas of inhaling to be difficult to waste gas recovery, easy cause the pollution.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides the concentration detection device for the waste gas treatment, which is capable of being intelligently recovered, and solves the problems that the waste gas is easy to diffuse to different positions due to the fluidity of the waste gas, the accuracy is reduced when the probe detects the sucked waste gas, the waste gas is difficult to recover, and the pollution is easy to cause.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the concentration detection device for waste gas treatment comprises a base, wherein an outer frame is fixedly connected to the top of the base, a plurality of detection gas bins are installed in the outer frame, a switching mechanism is installed on the outer frame, and a detection mechanism is installed on the switching mechanism;
the switching mechanism comprises two guide rails and a vertical frame, wherein a plurality of fixed iron cores are fixedly connected to one side surface of the inside of each guide rail, coils are sleeved outside the plurality of fixed iron cores, supporting legs are fixedly connected to two ends of the vertical frame, rotating rings are rotatably connected to the bottom ends of the two supporting legs, and a plurality of iron blocks are fixedly connected to the side surfaces of the two rotating rings;
the detection mechanism comprises a support frame, an opening cylinder is mounted on the support frame, a movable plate is arranged at the bottom of the support frame, a first electric push rod is arranged at one end of the movable plate, a probe is mounted at the end part of the first electric push rod, and a pushing head is fixedly connected with the other end of the movable plate;
the air pump is characterized in that the top surfaces of the detection air bins are provided with openings, movable covers are connected inside the openings in a sliding mode, reset springs are fixedly connected between one ends of the movable covers and the inner walls of the detection air bins, push rods are fixedly connected to the top surfaces of the movable covers, and one sides of the detection air bins are connected with the air pump.
Preferably, both ends of the stand are in sliding connection with the two guide rails, and a plurality of balls are arranged at the bottom end of the stand.
Preferably, the plurality of fixed iron cores are electrified through the plurality of coils to generate magnetism, and the plurality of fixed iron cores are matched with the coil attraction iron block.
Preferably, the movable plate is in sliding connection with the support frame, the expansion direction of the opening cylinder is consistent with the moving direction of the movable cover, and the movable plate is fixedly connected with the end part of the output shaft of the opening cylinder.
Preferably, the outer frame is equipped with the waste gas collection storehouse far away from one side of air pump, and is a plurality of detect air storehouse one side is connected with a plurality of exhaust plugs, a plurality of jacks have been seted up to waste gas collection storehouse one side, and is a plurality of the jack is inside all to be equipped with the rubber buffer.
Preferably, a plurality of exhaust plugs are provided with grooves, and a plurality of exhaust plugs are internally provided with one-way valves.
Preferably, the inside sliding connection of outer frame has the movable plate, a plurality of movable slots have been seted up on the movable plate, and is a plurality of the equal fixedly connected with baffle in movable slot, the exhaust hole has been seted up on the baffle, baffle and fluting phase-match, movable plate tip fixedly connected with second electric putter.
Preferably, the electromagnetic valve is arranged in the outer frame, the air pump and the plurality of detection air bins are connected through the electromagnetic valve, and one side of the air pump is connected with the pure air source and the waste gas source.
Preferably, the bottom surface of the waste gas collection bin is provided with an embedded groove, and the base is provided with an embedded seat.
Preferably, the embedded seat bottom fixedly connected with drive block and two guide blocks, the inside threaded connection of drive block has the removal screw rod, remove screw rod tip fixedly connected with driving motor, embedded seat and embedded groove phase-match, remove screw rod and base inner wall swivelling joint, embedded seat passes through guide block and base sliding connection.
(III) beneficial effects
The invention provides an intelligent recyclable concentration detection device for waste gas treatment, which has the following beneficial effects:
(1) According to the invention, through arranging the plurality of detection gas bins, the air pump is used for leading the waste gas at different positions into the plurality of detection gas bins, then the plurality of coils are sequentially switched on and off, only one coil is in an electrified state each time, the fixed iron core generates magnetism after the coil is electrified, attractive force is generated on the adjacent iron blocks, the iron blocks drive the rotating ring to rotate and move, the stand is driven to move, the movable plate is driven to move by the opening air cylinder, the movable plate moves to drive the pushing head to move, the pushing head opens the movable cover through the pushing rod, and then the first electric pushing rod is used for extending the probe into the detection gas bins for detection, so that the plurality of detection gas bins can be sequentially detected, the waste gas concentration is obtained, and the detection accuracy is improved.
(2) According to the invention, the exhaust gas collecting bin is arranged, the second electric push rod drives the moving plate to move, the exhaust hole is pulled into the exhaust plug, then the air pump continuously introduces pure gas into the detection gas bin, and the exhaust gas is introduced into the exhaust gas collecting bin through the exhaust plug for exhaust gas recovery treatment, so that pollution caused by direct discharge is avoided.
(3) According to the invention, the embedded seat is arranged, the driving motor drives the movable screw to rotate, the movable screw rotates to drive the driving block to move, and the driving block moves to drive the embedded seat to move, so that the exhaust gas collecting bin is driven to move, the exhaust plug is conveniently inserted into the exhaust gas collecting bin, and meanwhile, the exhaust gas collecting bin can be conveniently replaced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the guide rail of the present invention;
FIG. 3 is a schematic view of the structure of the stand of the present invention;
FIG. 4 is a schematic diagram of the structure of the detection gas bin of the invention;
FIG. 5 is a cross-sectional view of the connecting structure of the detection gas bin and the waste gas collecting bin of the invention;
FIG. 6 is a schematic diagram of a moving plate structure according to the present invention;
fig. 7 is a schematic diagram of a connection structure between the embedded seat and the driving motor.
In the figure: 1. a base; 2. an outer frame; 3. a switching mechanism; 4. a detection mechanism; 5. detecting a gas bin; 6. a guide rail; 7. fixing an iron core; 8. a coil; 9. a vertical frame; 10. a support leg; 11. a rotating ring; 12. iron blocks; 13. a support frame; 14. opening the cylinder; 15. a movable plate; 16. a first electric push rod; 17. a pushing head; 18. a movable cover; 19. a push rod; 20. an air pump; 21. a waste gas collection bin; 22. an exhaust plug; 23. slotting; 24. a one-way valve; 25. a moving plate; 26. a baffle; 27. an exhaust hole; 28. a second electric push rod; 29. an electromagnetic valve; 30. an embedding groove; 31. embedding a seat; 32. a driving block; 33. moving the screw; 34. a driving motor; 35. a guide block; 36. a rubber stopper.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-7, the present invention provides a technical solution: the utility model provides a concentration detection device for exhaust treatment that can intelligently retrieve, includes base 1, base 1 top fixedly connected with outer frame 2, outer frame 2 internally mounted has a plurality of detection gas storehouse 5, install shifter 3 on the outer frame 2, shifter 3 is last to install detection mechanism 4, can fill the waste gas of different positions in the space into a plurality of detection gas storehouse 5, then utilize shifter 3 to drive detection mechanism 4 and detect a plurality of detection gas storehouse 5 in proper order, then carry out comprehensive evaluation with a plurality of detection results to obtain the waste gas concentration, improved the accuracy of detection;
the switching mechanism 3 comprises two guide rails 6 and a stand 9, wherein one side surface inside the two guide rails 6 is fixedly connected with a plurality of fixed iron cores 7, the outer parts of the plurality of fixed iron cores 7 are sleeved with coils 8 to form electromagnets, so that magnetism of the fixed iron cores 7 can be generated or lost through controlling electrification or outage, the two ends of the stand 9 are fixedly connected with supporting feet 10, the bottom ends of the two supporting feet 10 are rotatably connected with rotating rings 11, the side surfaces of the two rotating rings 11 are fixedly connected with a plurality of iron blocks 12, the iron blocks 12 can attract close to each other when the fixed iron cores 7 generate magnetism, the iron blocks 12 are close to each other to drive the rotating rings 11 to rotate and move, and the rotating rings 11 move to drive the supporting feet 10 to move, so that the stand 9 is driven to move;
the detection mechanism 4 comprises a support frame 13, an opening cylinder 14 is arranged on the support frame 13 and can drive a movable plate 15 to move so as to open a movable cover 18, a probe can conveniently extend into the detection gas bin 5 for detection, the bottom of the support frame 13 is provided with the movable plate 15, one end of the movable plate 15 is provided with a first electric push rod 16, the end part of the first electric push rod 16 is provided with the probe and can drive the probe to move so as to extend the probe into the detection gas bin 5, and the other end of the movable plate 15 is fixedly connected with a pushing head 17 and can be matched with the push rod 19 to open the opening;
the opening has all been seted up on a plurality of detection gas storehouse 5 top surface, the inside sliding connection of opening has movable cover 18, can seal the opening, avoids waste gas leakage, fixedly connected with reset spring between movable cover 18 one end and the detection gas storehouse 5 inner wall can reset movable cover 18, movable cover 18 top surface fixedly connected with push rod 19 for push head 17 can drive movable cover 18 through pushing push rod 19 and remove, and a plurality of detection gas storehouse 5 one side is connected with air pump 20, can let in the waste gas of different positions in to a plurality of detection gas storehouse 5.
Further, both ends of the stand 9 are slidably connected with the two guide rails 6, and a plurality of balls are mounted at the bottom end of the stand 9, so that the stand 9 can move along the guide rails 6, and the sliding friction is converted into rolling friction by utilizing the balls, so that the friction resistance during movement is reduced, and the movement is easier.
Further, the fixed iron cores 7 generate magnetism through the energizing of the coils 8, and the fixed iron cores 7 are matched with the coils 8 to attract the iron blocks 12, so that the coils 8 can be energized or de-energized through control, the fixed iron cores 7 generate magnetism or lose magnetism, and the adjacent iron blocks 12 can be attracted to move.
Further, the movable plate 15 is slidably connected with the supporting frame 13, the expansion direction of the opening cylinder 14 is consistent with the movement direction of the movable cover 18, and the movable plate 15 is fixedly connected with the end part of the output shaft of the opening cylinder 14, so that when the opening cylinder 14 drives the movable plate 15 to move, the movable cover 18 can be pushed to move, and the opening is opened.
Further, the outer frame 2 is equipped with waste gas collection storehouse 21 far away from one side of air pump 20, and is a plurality of detect air storehouse 5 one side is connected with a plurality of exhaust plugs 22, a plurality of jacks have been seted up to waste gas collection storehouse 21 one side for exhaust plug 22 can enter into waste gas collection storehouse 21 through the jack, and is a plurality of the inside rubber plug 36 that all is equipped with of jack makes exhaust plug 22 end can pass rubber plug 36 and enter into waste gas collection storehouse 21, and can be after extracting exhaust plug 22, the jack is plugged up again to the rubber plug 36 reconversion, prevents waste gas leakage.
Further, the exhaust plugs 22 are provided with grooves 23, and the check valves 24 are installed in the exhaust plugs 22 to prevent the exhaust gas entering the exhaust gas collecting bin 21 from flowing back to the detecting gas bin 5.
Further, the movable plate 25 is slidably connected to the inside of the outer frame 2, a plurality of movable grooves are formed in the movable plate 25, a plurality of baffle plates 26 are fixedly connected to the inside of the movable grooves, exhaust holes 27 are formed in the baffle plates 26, the baffle plates 26 are matched with the grooves 23, a second electric push rod 28 is fixedly connected to the end portion of the movable plate 25, the movable plate 25 is driven to move in the grooves 23 on the exhaust plug 22 by the second electric push rod 28, and accordingly the baffle plates 26 or the exhaust holes 27 are led into the exhaust plug 22, so that the opening and closing of the exhaust plug 22 can be controlled.
Further, the electromagnetic valve 29 is installed inside the outer frame 2, the air pump 20 and the plurality of detection air bins 5 are connected through the electromagnetic valve 29, the detection air bins 5 and the air pump 20 can be opened and closed, one side of the air pump 20 is connected with a pure air source and an exhaust air source, so that exhaust gas can be introduced into the detection air bins 5 through the air pump 20, and the exhaust gas can be discharged thoroughly after pure air is continuously introduced into the detection air bins 5, the detection air bins 5 are cleaned, adverse effects caused by next detection work are avoided, and the detection accuracy is improved.
Further, the bottom surface of the exhaust gas collecting bin 21 is provided with an embedding groove 30, and the base 1 is provided with an embedding seat 31, so that the exhaust gas collecting bin 21 can be embedded into the embedding seat 31, and the exhaust gas collecting bin 21 can move along with the embedding seat 31.
Further, drive piece 32 and two guide blocks 35 are fixedly connected with bottom end of embedding seat 31, the inside threaded connection of drive piece 32 has movable screw 33, movable screw 33 tip fixedly connected with driving motor 34, embedding seat 31 and embedded groove 30 assorted, movable screw 33 rotates with the inner wall of base 1 to be connected, embedding seat 31 passes through guide block 35 and base 1 sliding connection for can drive movable screw 33 through driving motor 34 and rotate, movable screw 33 rotates and drives drive piece 32 and remove, and drive piece 32 removes and drives embedding seat 31 and remove, thereby drives waste gas collection storehouse 21 and removes, conveniently inserts exhaust plug 22 in the waste gas collection storehouse 21, can conveniently change waste gas collection storehouse 21 simultaneously.
To sum up, the workflow of the invention: when the invention is actually used, the air pump 20 is utilized to introduce waste gas at different positions into the plurality of detection air bins 5, then the plurality of coils 8 are sequentially switched on and off, only one coil 8 is in an electrified state each time, the fixed iron core 7 generates magnetism after the coil 8 is electrified, attractive force is generated on the adjacent iron block 12, the iron block 12 drives the rotating ring 11 to rotate and move, the stand 9 is driven to move, the air cylinder 14 is started to drive the movable plate 15 to move, the movable plate 15 is driven to move so as to drive the pushing head 17 to move, the pushing head 17 is driven to open the movable cover 18 through the push rod 19, then the first electric push rod 16 stretches the probe into the detection air bins 5 for detection, so that the plurality of detection air bins 5 can be sequentially detected, and then the plurality of detection results are comprehensively evaluated, so that the waste gas concentration is obtained, and the detection accuracy is improved;
after the detection is finished, the second electric push rod 28 drives the moving plate 25 to move, the exhaust hole 27 is pulled into the exhaust plug 22, then the air pump 20 continuously introduces pure gas into the detection gas bin 5, and introduces waste gas into the waste gas collection bin 21 through the exhaust plug 22 for waste gas recovery treatment, so that pollution caused by direct emission is avoided;
then the driving motor 34 drives the movable screw 33 to rotate, the movable screw 33 rotates to drive the driving block 32 to move, and the driving block 32 moves to drive the embedded seat 31 to move, so that the waste gas collecting bin 21 is driven to move, the exhaust plug 22 is conveniently inserted into the waste gas collecting bin 21, and meanwhile, the waste gas collecting bin 21 can be conveniently replaced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. Concentration detection device for exhaust-gas treatment that can retrieve intelligently, including base (1), its characterized in that: the device is characterized in that the top of the base (1) is fixedly connected with an outer frame (2), a plurality of detection gas bins (5) are arranged in the outer frame (2), a switching mechanism (3) is arranged on the outer frame (2), and a detection mechanism (4) is arranged on the switching mechanism (3);
the switching mechanism (3) comprises two guide rails (6) and a vertical frame (9), wherein a plurality of fixed iron cores (7) are fixedly connected to one side surface of the inside of each guide rail (6), a plurality of coils (8) are sleeved outside each fixed iron core (7), support legs (10) are fixedly connected to two ends of each vertical frame (9), rotating rings (11) are rotatably connected to the bottom ends of the two support legs (10), and a plurality of iron blocks (12) are fixedly connected to one side surface of each rotating ring (11);
the detection mechanism (4) comprises a support frame (13), an opening cylinder (14) is mounted on the support frame (13), a movable plate (15) is arranged at the bottom of the support frame (13), a first electric push rod (16) is arranged at one end of the movable plate (15), a probe is mounted at the end of the first electric push rod (16), and a pushing head (17) is fixedly connected with the other end of the movable plate (15);
the top surfaces of the detection gas bins (5) are provided with openings, movable covers (18) are connected inside the openings in a sliding mode, reset springs are fixedly connected between one ends of the movable covers (18) and the inner walls of the detection gas bins (5), push rods (19) are fixedly connected to the top surfaces of the movable covers (18), and air pumps (20) are connected to one sides of the detection gas bins (5);
one side of the outer frame (2) far away from the air pump (20) is provided with an exhaust gas collecting bin (21), one side of the plurality of detection air bins (5) is connected with a plurality of exhaust plugs (22), one side of the exhaust gas collecting bin (21) is provided with a plurality of jacks, and rubber plugs (36) are arranged in the jacks;
a plurality of exhaust plugs (22) are provided with grooves (23), and check valves (24) are arranged in the exhaust plugs (22).
2. The concentration detection apparatus for exhaust gas treatment that can be intelligently recovered according to claim 1, characterized in that: both ends of the stand (9) are in sliding connection with the two guide rails (6), and a plurality of balls are arranged at the bottom end of the stand (9).
3. The concentration detection apparatus for exhaust gas treatment that can be intelligently recovered according to claim 1, characterized in that: the fixed iron cores (7) are electrified through the coils (8) to generate magnetism, and the fixed iron cores (7) are matched with the coils (8) to attract the iron blocks (12).
4. The concentration detection apparatus for exhaust gas treatment that can be intelligently recovered according to claim 1, characterized in that: the movable plate (15) is in sliding connection with the supporting frame (13), the expansion direction of the opening air cylinder (14) is consistent with the moving direction of the movable cover (18), and the movable plate (15) is fixedly connected with the end part of an output shaft of the opening air cylinder (14).
5. The concentration detection apparatus for exhaust gas treatment that can be intelligently recovered according to claim 1, characterized in that: the movable support is characterized in that a movable plate (25) is connected to the outer frame (2) in a sliding mode, a plurality of movable grooves are formed in the movable plate (25), a baffle (26) is fixedly connected to the inner portion of each movable groove, an exhaust hole (27) is formed in the baffle (26), the baffle (26) is matched with the groove (23), and a second electric push rod (28) is fixedly connected to the end portion of the movable plate (25).
6. The concentration detection apparatus for exhaust gas treatment that can be intelligently recovered according to claim 1, characterized in that: the air pump is characterized in that an electromagnetic valve (29) is arranged in the outer frame (2), the air pump (20) is connected with the plurality of detection air bins (5) through the electromagnetic valve (29), and one side of the air pump (20) is connected with a pure air source and an exhaust air source.
7. The concentration detection apparatus for exhaust gas treatment that can be intelligently recovered according to claim 1, characterized in that: an embedded groove (30) is formed in the bottom surface of the waste gas collecting bin (21), and an embedded seat (31) is arranged on the base (1).
8. The concentration detection apparatus for exhaust gas treatment that can be intelligently recovered according to claim 7, characterized in that: the embedded seat (31) bottom fixedly connected with driving block (32) and two guide blocks (35), driving block (32) inside threaded connection has removal screw rod (33), remove screw rod (33) tip fixedly connected with driving motor (34), embedded seat (31) and embedded groove (30) assorted, remove screw rod (33) and base (1) inner wall rotation connection, embedded seat (31) pass through guide block (35) and base (1) sliding connection.
CN202111075623.1A 2021-09-14 2021-09-14 Concentration detection device for waste gas treatment that can intelligently retrieve Active CN113655184B (en)

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CN112666315A (en) * 2020-12-17 2021-04-16 胡利青 Electric automatization detection device

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