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CN-121995011-A - Environment-friendly on-line monitoring gas analyzer and analysis method

CN121995011ACN 121995011 ACN121995011 ACN 121995011ACN-121995011-A

Abstract

The invention belongs to the technical field of detection, in particular to an environment-friendly on-line monitoring gas analyzer and an analysis method, which solve the problems of poor impurity filtering effect, water interference detection result, fixed acquisition position and inconvenient cleaning of a filter screen when the traditional gas analyzer acquires air, wherein the analyzer comprises a movable base, a rotating column, a drying container, a hexagonal disk and the like, a gas collecting tube is matched with a collecting cylinder to suck air in the acquisition structure, the filter screen filters large granule impurity, and molecular sieve dry air, and swing structure makes swinging boom reciprocal swing and revolution, gathers different position air, and loose structure lets the swinging boom be vertical state, and the clean filter screen of being convenient for, cooperation such as booster pump in addition makes gas-collecting tube blowout pulse air clean filter screen through fixed pipe, sink groove etc. and the dust falls into dust collection case dust and falls, improves air detection accuracy and filter screen cleaning efficiency.

Inventors

  • Meng Jifeng
  • LIN HUIJUN
  • LIU ZHANQIANG

Assignees

  • 山西尔成科技有限公司

Dates

Publication Date
20260508
Application Date
20260309

Claims (9)

  1. 1. An environmental protection on-line monitoring gas analysis appearance, characterized by comprising: The drying device comprises a moving base (1), wherein a rotating column (2) is rotatably connected to the top of the moving base (1), a drying container (3) is fixedly sleeved on the outer wall of the rotating column (2), a hexagonal disc (4) is fixed to the top of the moving base (1), and the hexagonal disc (4) is rotatably sleeved on the outer wall of the drying container (3); one end of the rotating arm (13) is rotatably connected to one side of the rotating column (2), the other end of the rotating arm is fixedly provided with a material collecting barrel (14), and a filter screen (15) is fixedly arranged in the material collecting barrel (14); The collecting structure comprises a gas collecting tube (16) fixed in a rotating arm (13), a vacuum pump (47) and a detector (48), wherein the vacuum pump (47) and the detector (48) are arranged at the top of a movable base (1), one end of the gas collecting tube (16) extends into a material collecting cylinder (14), the other end of the gas collecting tube extends into a drying container (3), a perforated tray (28) and a molecular sieve (29) are arranged in the drying container (3), a fixed cylinder (31) is fixed in the movable base (1), the top end of the fixed cylinder (31) rotationally extends into a rotating column (2), an air inlet II (32) is arranged on the outer wall of the fixed cylinder, an air inlet I (30) matched with the air inlet II (32) is arranged in the rotating column (2), and the air inlet end of the vacuum pump (47) is communicated with the fixed cylinder (31) and the air outlet end of the vacuum pump is communicated with the detector (48); the vacuum pump (47) operates to enable negative pressure to be formed in the fixed cylinder (31), external air is filtered by the filter screen (15), then sequentially passes through the gas collecting tube (16) and the molecular sieve (29) to be dried, enters the fixed cylinder (31) through the gas inlet I (30) and the gas inlet II (32), and is finally detected by the detector (48).
  2. 2. The environmental protection online monitoring gas analyzer of claim 1, further comprising a swing structure: The swing structure comprises a rotating shaft I (10), a rotating shaft II (12), a fixed rod (5) and a sliding plate (6), wherein the rotating shaft I (10) and the rotating shaft II (12) are rotationally connected to two sides of a rotating column (2) through a base and are in transmission connection with a synchronous belt through a synchronous wheel, the rotating arm (13) is fixedly sleeved on the outer wall of the rotating shaft II (12), the fixed rod (5) is fixed on one side of the rotating column (2), the sliding plate (6) is slidingly sleeved on the outer wall of the fixed rod (5), a pin shaft (7) in sliding fit with the outer wall of a hexagonal disc (4) is fixed at the bottom of the sliding plate (6), a winding drum (11) is fixedly sleeved on the outer wall of the rotating shaft I (10), a traction rope (20) is wound on the outer wall of the sliding plate, and the bottom end of the traction rope (20) is fixed on one side, close to the rotating column (2), of the sliding plate (6); When the rotary column (2) rotates, the pin shaft (7) drives the sliding plate (6) to reciprocate along the outer wall of the hexagonal disc (4), the winding drum (11) and the rotary shaft I (10) are driven to reciprocate through the traction rope (20), and then the rotary arm (13) is driven to revolve and reciprocate to enable the collecting cylinder (14) to collect air at different positions.
  3. 3. The environmental protection online monitoring gas analyzer of claim 2, further comprising a relaxation structure: The device comprises a rotary column (2), a slotted ring (21), a U-shaped arm (18), a guide wheel III (19), an electric push rod (23), a push rod (24) and a support rod, wherein the rotary column (2) is sleeved with the slotted ring (21) in a sliding manner; When the electric push rod (23) drives the slotted ring (21) to move downwards, the U-shaped arm (18) moves the guide wheel III (19) out of the accommodating groove (17), so that the traction rope (20) is loosened, and the rotary arm (13) is in a vertical state under the action of gravity.
  4. 4. An environmental protection online monitoring gas analyzer according to claim 3, further comprising: The device comprises a rotary column (2), a fixed pipe (35), a booster pump (34), a confluence groove (38), an exhaust pipe (39), a check valve, a plurality of air pipes (16) and a plurality of air pipes, wherein the fixed pipe penetrates through the fixed cylinder (31) in a fixed way and extends into the rotary column (2), the two sides of the fixed pipe are provided with air outlets (36), the booster pump (34) is fixed on the inner wall of the top of the rotary column (1), the air outlet end of the booster pump is communicated with the fixed pipe (35), the confluence groove (38) is arranged in the rotary column (2) and is positioned above a containing groove (17) and is intermittently communicated with the air outlets (36) through two backflow channels (37), and the exhaust pipe (39) is communicated with the confluence groove (38) and the air collection pipe (16), and the air collection pipe (16) is internally provided with the check valve; When the rotary column (2) rotates, the exhaust port (36) is intermittently communicated with the backflow channel (37), and compressed air is reversely sprayed into the collecting cylinder (14) through the exhaust pipe (39) to form a pulse airflow to remove dust on the filter screen (15).
  5. 5. The on-line monitoring gas analyzer of claim 4, further comprising a dust box (33) fixed to one side of the spin basket (2) and located below the cartridge (14).
  6. 6. The environmental protection online monitoring gas analyzer of claim 5, further comprising: The device comprises a fixed pipe (35), a piston (40), a lifting ring (44), magnets I (41), magnets II (46), a knocker (50) and a dust collection box (33), wherein the piston is hermetically and slidingly connected in the fixed pipe (35) and is positioned above an exhaust port (36), the top of the piston is connected with the inner wall of the top of the fixed pipe (35) through a spring (42), the lifting ring (44) is sleeved on the outer wall of a rotating column (2) in a sliding manner, the inner wall of the lifting ring is slidingly connected with sliding grooves (43) of the rotating column (2) through sliding blocks (45), the magnets I (41) are embedded on two sides of the piston (40), the magnets II (46) are fixedly arranged at one end of the sliding blocks (45) close to the piston (40) and are in magnetic attraction fit with the magnets I (41), and the top of the knocker (50) is fixedly arranged at one side of the lifting ring (44) through a beam plate (49) and is hermetically and slidingly extended to the dust collection box (33) and corresponds to a filter screen (15); when the exhaust port (36) is dislocated with the return channel (37), the compressed air pushes the piston (40) to move upwards, and the knocking device (50) is driven by magnetic attraction to knock the filter screen (15) to shake off dust.
  7. 7. The environment-friendly on-line monitoring gas analyzer as claimed in claim 6, wherein the six convex corners of the hexagonal disk (4) are arc corners.
  8. 8. The environmental protection online monitoring gas analyzer of claim 7, further comprising a drive mechanism: the gear ring (25) is fixed at the bottom of the rotary column (2), the driving motor (26) is fixed on the inner wall of the bottom of the movable base (1), and the output shaft of the driving motor is fixed with a gear (27) meshed with the gear ring (25).
  9. 9. An analysis method of an environment-friendly on-line monitoring gas analyzer, which is applied to the environment-friendly on-line monitoring gas analyzer of claim 8, and is characterized by comprising the following steps: S1, sampling and detecting, namely starting a driving motor (26) to drive a rotary column (2) and a drying container (3) to rotate, enabling a rotary arm (13) to revolve and swing through transmission of a traction rope (20) to drive a collecting cylinder (14) to collect air in multiple directions, synchronously starting a vacuum pump (47) to enable the air to enter a detector (48) for detection after being filtered by a filter screen (15) and dried by a molecular sieve (29); s2, when the filter screen (15) is used for dust accumulation, the electric push rod (23) is started to loosen the traction rope (20) so that the rotary arm (13) is vertically positioned above the dust collection box (15); S3, pulse ash removal, namely, injecting air into the fixed pipe (35) by the booster pump (34), intermittently communicating the backflow channel (37) by the air outlet (36) to form a pulse air flow jetting filter screen (15) when the rotary column (2) rotates, and driving the knocker (50) to knock the filter screen by the air pressure pushing piston (40) when the rotary column is dislocated, so that ash removal is cooperatively realized, and dust falls into the dust collection box (33) for water bath dust drop.

Description

Environment-friendly on-line monitoring gas analyzer and analysis method Technical Field The invention relates to the technical field of detection, in particular to an environment-friendly online monitoring gas analyzer and an analysis method. Background In the field of environmental protection monitoring, the real-time and accurate monitoring of the air quality is important. Conventional gas analyzers are used to detect the concentration of gases such as oxygen (O 2), carbon dioxide (CO 2), carbon monoxide (CO), nitrogen oxides (NO x), sulfur oxides (SO x), and methane (CH 4) in air. Conventional gas analyzers have a number of problems in the air collection and detection process. On the one hand, the position of the collected air is relatively fixed, and air samples in different areas are difficult to obtain, so that the detection result cannot comprehensively and truly reflect the overall air quality condition, and the detection accuracy is low. On the other hand, the outside air contains a large amount of dust, particles and moisture, and after the impurities enter the detector, the impurities easily block the air inlet of the detector and are adsorbed on the surface of the sensitive element to cause attenuation or distortion of a measurement signal, and meanwhile, the moisture can also cause the phenomenon of short circuit or corrosion of electrical elements in the detector to seriously influence the normal use and detection accuracy of the gas analyzer. In addition, in long-term use, the filter screen is easy to accumulate dust, and if the filter screen cannot be effectively cleaned in time, the quality of air collection and the reliability of detection results can be further affected. Therefore, the development of the environment-friendly on-line monitoring gas analyzer which can collect air in multiple positions, effectively filter impurities and moisture and conveniently clean a filter screen has important practical significance. Disclosure of Invention The invention aims to solve the defects of poor filtration, moisture influence detection, fixed collection position and inconvenient cleaning of a filter screen of the existing collected air impurities, and provides an environment-friendly online monitoring gas analyzer and an analysis method. In order to achieve the above purpose, the present invention adopts the following technical scheme: An environmental protection on-line monitoring gas analyzer, comprising: The top of the moving base is rotationally connected with a rotating column, a drying container is fixedly sleeved on the outer wall of the rotating column, a hexagonal disc is fixedly arranged on the top of the moving base, and the hexagonal disc is rotationally sleeved on the outer wall of the drying container; one end of the rotating arm is rotatably connected to one side of the rotating column, the other end of the rotating arm is fixedly provided with a material collecting barrel, and a filter screen is fixed in the material collecting barrel; the collecting structure comprises a gas collecting tube fixed in a rotating arm, a vacuum pump and a detector, wherein the top of a movable base is provided with the vacuum pump, one end of the gas collecting tube extends into a material collecting cylinder, the other end of the gas collecting tube extends into a drying container, a perforated tray and a molecular sieve are arranged in the drying container, a fixed cylinder is fixed in the movable base, the top end of the fixed cylinder extends into a rotating column in a rotating way, the outer wall of the fixed cylinder is provided with a gas inlet II, and the rotating column is internally provided with a gas inlet I matched with the gas inlet II; the vacuum pump operates to form negative pressure in the fixed cylinder, and outside air is filtered by the filter screen, sequentially passes through the gas collecting tube and the molecular sieve for drying, enters the fixed cylinder through the gas inlet I and the gas inlet II, and is finally detected by the detector. In one possible design, the device further comprises a swinging structure: The swinging structure comprises a rotating shaft I, a rotating shaft II, a fixed rod and a sliding plate; The rotating shaft I and the rotating shaft II are connected to two sides of the rotating column through the base in a rotating way and are in transmission connection with the synchronous belt through the synchronous wheels; the rotating arm is fixedly sleeved on the outer wall of the rotating shaft II; The fixed rod is fixed on one side of the rotary column, the sliding plate is sleeved on the outer wall of the fixed rod in a sliding way, and a pin shaft which is in sliding fit with the outer wall of the hexagonal disk is fixed at the bottom of the sliding plate; the winding drum is fixedly sleeved on the outer wall of the rotating shaft I, a traction rope is wound on the outer wall of the winding drum, and the bottom end of the traction rope is fixed o