Air quality on-line monitoring device for environmental protection engineering

Abstract

The invention discloses an online air quality monitoring device for environmental protection engineering, and relates to the technical field of air monitoring. Comprising a monitoring installation part, a lifting dehumidification part is installed on the monitoring installation part, and the lifting dehumidification part is used for condensation dehumidification; a circulation control part is mounted on the monitoring mounting part and used for automatically circulating cold water; a monitoring control piece is mounted on the monitoring mounting piece; an exhaust control piece is mounted on the lifting dehumidification piece; the exhaust control piece is used for controlling the exhaust speed; a lifting connecting piece is mounted on the monitoring control piece in a sliding manner; the lifting connecting piece can be used for being matched with the monitoring control piece, the exhaust speed during air impurity detection each time is detected, it is ensured that the exhaust speeds are relatively consistent, and the result comparison accuracy can be improved; the problems that an existing environmental protection engineering air quality on-line monitoring device cannot conveniently conduct monitoring on the premise that the exhaust air speed is kept consistent, and dust backflow is likely to be caused by a traditional cleaning mode are solved.

Description

Technical Field

[0001] The invention relates to the technical field of air monitoring, and in particular to an online monitoring device for air quality in an environmental protection project. Background Art

[0002] In the actual environmental protection project monitoring work, the emission pollution detection of exhaust gas particulate matter to the air is a common air quality detection project. The particulate matter content of the emitted air is directly related to the air quality. When conducting smoke and exhaust gas quality detection, it is necessary to ensure that the wind pressure speed remains consistent. The chimney outlet is easily disturbed by external wind direction, air pressure and other factors, forming vortices or sudden changes in air flow section. When the current environmental protection project air quality online monitoring device is monitoring, the chimney is affected by the environment and exhaust speed. Its exhaust is not convenient for monitoring under the premise of maintaining a consistent exhaust wind speed. Multiple monitoring data deviations are large, affecting data accuracy. At the same time, the monitoring filter is prone to forgetting to clean, which is not convenient for automatic control pre-cleaning to ensure consistent monitoring benchmarks. Filters clogged with impurities will also affect monitoring accuracy. At the same time, traditional cleaning methods are prone to dust backflow, which causes blockage again, affecting data accuracy. It is also not convenient to automatically detect air after dehumidification, affecting the life of the filter and reducing data accuracy.

[0003] Therefore, we propose an online monitoring device for air quality in environmental protection projects. Summary of the invention

[0004] The purpose of the present invention is to provide an online monitoring device for air quality of environmental protection projects, so as to solve the problem mentioned in the above background technology that the current online monitoring device for air quality of environmental protection projects is not convenient for monitoring under the premise of maintaining a consistent exhaust wind speed, and the traditional cleaning method easily causes dust backflow.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an online air quality monitoring device for environmental protection projects, comprising a monitoring mounting part, on which a lifting dehumidification part is installed, and the lifting dehumidification part is used for condensation dehumidification; a circulation control part is installed on the monitoring mounting part for automatically circulating cold water; a monitoring control part is installed on the monitoring mounting part; an exhaust control part is installed on the lifting dehumidification part; the exhaust control part is used to control the exhaust speed; a lifting connection part is slidably installed on the monitoring control part; the lifting connection part is used to be lifted and lowered by air pressure; a particle monitoring part is installed inside the lifting connection part; the particle monitoring part is used to monitor the amount of particle impurities; a backflush control part is installed on the lifting dehumidification part; the backflush control part is used to prevent forgotten backflush; the monitoring mounting part comprises: a mounting ring and a water inlet pipe, the interior of the mounting ring is a hollow structure; the water inlet pipe is fixedly installed on the mounting ring.

[0006] Preferably, the monitoring mounting component further includes: a circulation hole and a lifting hydraulic cylinder, two circulation holes are provided on the mounting ring, and a circle of the mounting ring is connected to the water inlet pipe; four lifting hydraulic cylinders are fixedly mounted on the inner side of the mounting ring; and the water inlet pipe is externally connected to a water pump.

[0007] Preferably, the lifting dehumidification component includes: a lifting cover, a connecting hole and a drain pipe, the lifting cover is fixedly mounted on the output shafts of four lifting hydraulic cylinders; the lifting cover is a hollow structure; a connecting hole is opened at the bottom of the lifting cover, and the connecting hole is aligned with two circulation holes; a drain pipe is fixedly mounted on the lifting cover, and the drain pipe is used for drainage; a rubber ring is embedded on the outer side of the two circulation holes on the mounting ring; the lifting cover is a slope structure.

[0008] Preferably, the circulation control component includes: a circulation slide shaft and a closing cover, the circulation slide shaft is slidably mounted on a mounting ring; the circulation slide shaft is located in the middle of two circulation holes; a closing cover is fixedly mounted on the bottom of the circulation slide shaft; the closing cover closes and fits a circle of connecting holes; a spring is provided at the bottom of the closing cover; the spring at the bottom of the closing cover is located inside the mounting ring.

[0009] Preferably, the monitoring control component comprises: a monitoring installation shell and an electric connection ring, wherein the monitoring installation shell is threadedly connected to the lifting cover; and the electric connection ring is embedded inside the monitoring installation shell.

[0010] Preferably, the exhaust control component includes: a guide cover, an exhaust hole, a flow control electric push rod and a closing column, the guide cover is fixedly installed on the bottom of the lifting cover; a gap is provided between the outer side of the guide cover and the inner side of the lifting cover; a circle of exhaust holes is provided on the outer side of the guide cover; a flow control electric push rod is fixedly installed on the bottom of the guide cover through a bracket; a closing column is fixedly installed on the output shaft of the flow control electric push rod; the closing column is slidably inserted into the guide cover; the closing column is used to cover the exhaust hole.

[0011] Preferably, the lifting connection component includes: a lifting shell, an exhaust pipe, a conductive ring, an intake pipe, a solenoid valve and an extrusion spring, and the lifting shell is slidably sleeved on the monitoring mounting shell; the exhaust pipe is fixedly installed on the side of the lifting shell, and the exhaust pipe passes through the monitoring mounting shell; the intake pipe is fixedly installed on the side of the lifting shell, and the intake pipe passes through the monitoring mounting shell; the solenoid valve is installed on the intake pipe; the intake pipe is externally connected to a pressure tank; an extrusion spring is fixedly installed on the top of the lifting shell, and the extrusion spring is located inside the monitoring mounting shell; a conductive ring is sleeved on the outside of the lifting shell, and the conductive ring is attached to the electrical ring.

[0012] Preferably, the lifting connection also includes: a stop ring, a sealing column and a closed tension spring, the end of the exhaust pipe is fixedly sleeved with a stop ring, and the inner side of the stop ring is a slope structure; the inside of the lifting shell is sleeved with a sealing column, and a gap is provided between the outer side of the sealing column and the inner side of the lifting shell; the end of the closed tension spring is fixedly installed on the inner side of the lifting shell; the other end of the closed tension spring is fixedly installed with a sealing column; the sealing column is used for closing and fitting the stop ring.

[0013] Preferably, the particle monitoring component includes: a monitoring mounting cylinder, a sliding column, a pressure sensor and a filter cylinder, wherein the monitoring mounting cylinder is fixedly mounted on the inner side of a lifting shell; a sliding column is slidably mounted inside the monitoring mounting cylinder, and a spring is connected between the sliding column and the monitoring mounting cylinder; a pressure sensor is fixedly mounted on the bottom of the sliding column; a filter cylinder is slidably mounted inside the lifting shell, and the end of the pressure sensor is attached to the filter cylinder; a filter mesh hole is provided inside the filter cylinder; a power supply is connected in series to the conductive ring, the electrical ring and the pressure sensor.

[0014] Preferably, the back-blow control component includes: a power connection post, a power connection flashlight and a power connection block, the power connection post is fixedly installed on the bottom of the lifting cover; a power connection flashlight is sleeved on the outside of the power connection post; the power connection block is fixedly installed on the side of the lifting hydraulic cylinder on the same side; the power connection post is sleeved in the power connection block; the power connection flashlight, power connection block and solenoid valve are connected in series with a power supply.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts a flow control component to cooperate with the lifting dehumidification component, so as to avoid the problem that the staff forgets to perform condensation and dehumidification work when performing particulate matter detection, which causes excessive corrosion to the filter cartridge. At the same time, excessive moisture content affects the detection accuracy of the filter cartridge. It can collect flue gas and promote the flue gas to converge in the filter cartridge for detection, shortening the monitoring time, and avoiding the problem of incomplete flue gas detection range in the traditional method of inserting a test structure into the inner wall of the chimney for monitoring.

[0016] The lifting connection can be used in conjunction with the monitoring control component to detect the exhaust speed each time the air impurity detection is performed, ensuring that the exhaust speed is relatively consistent, which can improve the accuracy of the result comparison and is more convenient for long-term monitoring. The intake speed can be adjusted in conjunction with the exhaust control component. The structure control is simple and eliminates the problem of large data deviation caused by different exhaust speeds. This structure can use a conductive ring, an electrical ring and a pressure sensor in series to ensure that the particle detection work can only be performed normally when the exhaust speed is the same, preventing misoperation of the detection and recording data.

[0017] The use of a backflush control component can realize automatic control of backflush of the filter cartridge before the staff needs to conduct impurity quality detection, so as to keep the filter cartridge consistent in its benchmark each time it monitors air quality, and prevent the staff from forgetting the backflush operation. The backflush can be started before the detection work. At the same time, the backflush control component is used in conjunction with a guide cover to automatically guide dust discharge during the backflush work, so as to prevent dust from being directly discharged into the chimney and then discharged again, affecting the particle detection accuracy. At the same time, it also prevents the backflush air pressure from being directly blown into the chimney and affecting parameters such as the chimney exhaust rate, thus affecting the subsequent detection accuracy. The structure is simple to control and can be automatically powered on and work without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an online monitoring device for air quality in an environmental protection project according to the present invention; Figure 2 This is a schematic diagram of the bottom structure of an online monitoring device for air quality in an environmental protection project according to the present invention; Figure 3 This is a cross-sectional view of the internal structure of an online monitoring device for air quality in an environmental protection project of the present invention; Figure 4 This is a schematic diagram of the structure of the monitoring installation member of the present invention; Figure 5 This is a schematic diagram of the structure of the lifting dehumidification component of the present invention; Figure 6 For the present invention Figure 3 A magnified view of the structure of the middle B region; Figure 7 For the present invention Figure 3 A magnified view of the structure of the middle C region; Figure 8 It is a schematic diagram of the structure of the exhaust control component of the present invention; Fig. 9 This is a schematic diagram of the lifting connection structure of the present invention; Fig.10 For the present invention Figure 3 A magnified view of the structure of the middle E region; Fig.11 This is a cross-sectional view of the particle monitoring component structure of the present invention; Fig.12 It is a schematic diagram of the structure of the backflush control component of the present invention.

[0019] In the figure: 1. Monitoring installation part; 101. Installation ring; 102. Water inlet pipe; 1011. Flow hole; 103. Lifting hydraulic cylinder; 2. Lifting dehumidification part; 201. Lifting cover; 202. Connection hole; 203. Drain pipe; 3. Flow control part; 301. Flow slide shaft; 302. Closing cover; 4. Monitoring control part; 401. Monitoring installation shell; 402. Electric connection ring; 5. Exhaust control part; 501. Guide cover; 5011. Exhaust hole; 502. Electric push rod for flow control; 5 03. Closing column; 6. Lifting connector; 601. Lifting shell; 6011. Exhaust pipe; 6012. Conductive ring; 602. Inlet pipe; 603. Solenoid valve; 604. Extrusion spring; 605. Stop ring; 606. Sealing column; 607. Closing tension spring; 7. Particle monitoring component; 701. Monitoring installation cylinder; 702. Sliding column; 703. Pressure sensor; 704. Filter cartridge; 8. Backflush control component; 801. Power connection column; 802. Flashlight connection; 803. Power connection block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1 to 12 As shown: The present invention provides a technical solution: an online air quality monitoring device for an environmental protection project, comprising a monitoring installation component 1, on which a lifting dehumidification component 2 is installed, and the lifting dehumidification component 2 is used for condensation dehumidification; a circulation control component 3 is installed on the monitoring installation component 1 for automatically circulating cold water; a monitoring control component 4 is installed on the monitoring installation component 1; an exhaust control component 5 is installed on the lifting dehumidification component 2; the exhaust control component 5 is used to control the exhaust speed; a lifting connection component 6 is slidably installed on the monitoring control component 4; the lifting connection component 6 is used to be lifted and lowered by air pressure; a particle monitoring component 7 is installed inside the lifting connection component 6; the particle monitoring component 7 is used to monitor the amount of particle impurities; a backflush control component 8 is installed on the lifting dehumidification component 2; the backflush control component 8 is used to prevent forgotten backflush; the monitoring installation component 1 comprises: a mounting ring 101 and a water inlet pipe 102, the interior of the mounting ring 101 is a hollow structure; the water inlet pipe 102 is fixedly installed on the mounting ring 101.

[0022] The monitoring installation part 1 further includes: a circulation hole 1011 and a lifting hydraulic cylinder 103. Two circulation holes 1011 are provided on the installation ring 101. A circle of the installation ring 101 is connected to the water inlet pipe 102. Four lifting hydraulic cylinders 103 are fixedly installed on the inner side of the installation ring 101. The water inlet pipe 102 is externally connected to a water pump. The lifting dehumidification part 2 includes: a lifting cover 201, a connecting hole 202 and a drain pipe 203. The lifting cover 201 is fixedly installed on the output shafts of the four lifting hydraulic cylinders 103. The lifting cover 201 is a hollow structure. A connecting hole 202 is provided at the bottom of the lifting cover 201, and The connection hole 202 is aligned with the two flow holes 1011; a drain pipe 203 is fixedly installed on the lifting cover 201, and the drain pipe 203 is used for drainage; a rubber ring is embedded on the outside of the two flow holes 1011 on the mounting ring 101; the lifting cover 201 is a slope structure; the flow control member 3 includes: a flow slide shaft 301 and a closing cover 302, and the flow slide shaft 301 is slidably installed on the mounting ring 101; the flow slide shaft 301 is located in the middle of the two flow holes 1011; a closing cover 302 is fixedly installed at the bottom of the flow slide shaft 301; the closing cover 302 closes and fits a circle of the connection hole 20 2; A spring is provided at the bottom of the closing cover 302; The spring at the bottom of the closing cover 302 is located inside the mounting ring 101, and the flow control member 3 can be used to cooperate with the lifting dehumidification member 2 to avoid the problem that the staff forgets to perform condensation and dehumidification work when performing particle detection, causing excessive corrosion to the filter cartridge 704. At the same time, excessive moisture content affects the detection accuracy of the filter cartridge 704. This structure can realize automatic control and ensure the detection accuracy of gas impurities. At the same time, this structure adopts a lifting dehumidification member 2, which does not affect the chimney flue gas emission efficiency and does not cause obstruction while performing detection work. When the smoke is collected, it can be promoted to converge on the filter cartridge 704 for detection, shortening the monitoring time, and avoiding the problem of incomplete smoke detection range in the traditional method of inserting a test structure for monitoring on the inner wall of the chimney. The lifting hydraulic cylinder 103 is controlled to drive the lifting cover 201 to descend. At this time, the lifting cover 201 descends and fits the mounting ring 101. At this time, the lifting cover 201 can move down to squeeze the circulation slide shaft 301, driving the closing cover 302 to move down, and no longer fit the circulation hole 1011 for sealing. At this time, the cold water in the circulation hole 1011 can flow into the connecting hole 202 for cooling and water supply.

[0023] The monitoring control component 4 includes: a monitoring installation shell 401 and a power connection ring 402. The monitoring installation shell 401 is threadedly connected to the lifting cover 201; the power connection ring 402 is embedded inside the monitoring installation shell 401; the exhaust control component 5 includes: a guide cover 501, an exhaust hole 5011, a flow control electric push rod 502 and a closing column 503. The guide cover 501 is fixedly installed at the bottom of the lifting cover 201; a gap is provided between the outer side of the guide cover 501 and the inner side of the lifting cover 201; a circle of exhaust holes 5011 is provided on the outer side of the guide cover 501; a flow control electric push rod 502 is fixedly installed at the bottom of the guide cover 501 through a bracket; the flow control electric push rod 502 A closing column 503 is fixedly installed on the output shaft; the closing column 503 is slidably inserted on the guide cover 501; the closing column 503 is used to cover the exhaust hole 5011; the lifting connection member 6 includes: a lifting shell 601, an exhaust pipe 6011, a conductive ring 6012, an intake pipe 602, a solenoid valve 603 and an extrusion spring 604, and the lifting shell 601 is slidably sleeved on the monitoring installation shell 401; an exhaust pipe 6011 is fixedly installed on the side of the lifting shell 601, and the exhaust pipe 6011 passes through the monitoring installation shell 401; an intake pipe 602 is fixedly installed on the side of the lifting shell 601, and the intake pipe 602 passes through the monitoring installation shell 401; the intake pipe A solenoid valve 603 is installed on 602; an air intake pipe 602 is connected to a pressure tank; an extrusion spring 604 is fixedly installed on the top of the lifting shell 601, and the extrusion spring 604 is located inside the monitoring installation shell 401; a conductive ring 6012 is sleeved on the outer side of the lifting shell 601, and the conductive ring 6012 is attached to the power ring 402. The lifting connector 6 can be used to cooperate with the monitoring control component 4 to detect the exhaust speed during each air impurity detection to ensure that the exhaust speed is relatively consistent, which can improve the accuracy of the result comparison and is more convenient for long-term monitoring. The exhaust control component 5 can be used to adjust the intake speed, and the structure control is simple to eliminate the exhaust gas caused by the exhaust gas. To solve the problem of large data deviation caused by different speeds, the present structure can utilize the conductive ring 6012, the power ring 402 and the pressure sensor 703 in series to ensure that the particle detection can be performed normally only when the exhaust speed is the same, to prevent erroneous operation of the detection and recording data. When the lifting cover 201 descends and closes the mounting ring 101, the air pressure is discharged from the exhaust hole 5011 into the lifting shell 601. At this time, under the action of the air pressure, the lifting shell 601 can move, and the closing column 503 is driven to rise and fall by the flow-control electric push rod 502 to adjust the shielding of the exhaust hole 5011. The larger the shielding area of ​​the exhaust hole 5011, the worse the fluidity, and the exhaust speed can be reduced.

[0024] Embodiment 2. On the basis of embodiment 1, the lifting connection part 6 also includes: a stop ring 605, a blocking column 606 and a closed tension spring 607. The end of the exhaust pipe 6011 is fixedly sleeved with a stop ring 605, and the inner side of the stop ring 605 is a slope structure; the sealing column 606 is sleeved inside the lifting shell 601, and a gap is provided between the outer side of the blocking column 606 and the inner side of the lifting shell 601; the end of the closed tension spring 607 is fixedly installed on the inner side of the lifting shell 601; the other end of the closed tension spring 607 is fixedly installed with a blocking column 606; the blocking column 606 is used to close and fit the stop ring 605; the particle monitoring part 7 includes: a monitoring installation cylinder 701, a sliding column 702, a pressure sensor 703 and a filter cylinder 704. The HZC-H1 pressure sensor 703 can be used, and an external matching display can be connected to the ground to display data online. The monitoring installation cylinder 701 is fixedly installed on the inner side of the lifting shell 601; a sliding column 702 is slidably installed inside the monitoring installation cylinder 701, and a spring is connected between the sliding column 702 and the monitoring installation cylinder 701; a pressure sensor 703 is fixedly installed at the bottom of the sliding column 702; a filter cylinder 704 is slidably installed inside the lifting shell 601, and the end of the pressure sensor 703 is attached to the filter cylinder 704; a filter mesh hole is provided inside the filter cylinder 704; the conductive ring 6012, the power connection ring 402 and the pressure sensor 703 are connected in series with the power supply; the backflush control component 8 includes: a power connection column 801, a power connection torch 802 and a power connection block 803, and the power connection column 801 is fixedly installed at the bottom of the lifting cover 201; the power connection torch 802 is sleeved on the outside of the power connection column 801; the power connection block 803 is fixedly installed on the side of the lifting hydraulic cylinder 103 on the same side; the power connection column 801 is sleeved in the power connection block 803;The flashlight 802, the power block 803 and the solenoid valve 603 are connected in series with the power supply, and the particle monitoring component 7 can perform accurate air particle content detection in real time. The backflush control component 8 can be used to automatically control the backflush of the filter cartridge 704 before the staff needs to perform impurity detection, so as to keep the baseline of the filter cartridge 704 consistent each time the air quality is monitored, and at the same time prevent the staff from forgetting the backflush operation, and can control the start of the backflush before the detection work. At the same time, the backflush control component 8 is used in conjunction with the guide cover 501, so that dust discharge can be automatically guided during the backflush work, so as to prevent dust from being directly discharged into the chimney and then being discharged again later, affecting the particle detection accuracy. At the same time, it also prevents the backflush air pressure from being directly blown into the chimney and affecting the chimney exhaust rate and other parameters, affecting the subsequent detection accuracy. , This structure is simple to control, can be automatically powered on, and does not require manual operation. The lifting connector 6 can be used to release pressure when blowing back the exhaust, and at the same time does not affect the normal air pressure circulation. The structure is more reasonable. When the lifting cover 201 drives the power connection column 801 to descend, the power connection torch 802 will first contact the power connection block 803. At this time, the lifting cover 201 has not yet fitted the mounting ring 101. At this time, the solenoid valve 603 can be powered on to open and release the air pressure. Under the action of air pressure, the mesh on the filter cartridge 704 can be blown back. At this time, the particles blown out last time can be discharged from the exhaust hole 5011, guided between the guide cover 501 and the inner side of the lifting cover 201, and directly discharged outside the chimney to avoid impurities blowing back to the chimney. The pressure is detected in real time by the pressure sensor 703, and the data is observed through an external display. ;

[0025] The working principle of this embodiment is as follows: the mounting ring 101 is pre-buried at the top of the chimney. When smoke detection is required, the lifting hydraulic cylinder 103 is controlled to drive the lifting cover 201 to descend. The lifting cover 201 descends and fits the mounting ring 101. At this time, the lifting cover 201 can move down to squeeze the circulation sliding shaft 301, driving the closing cover 302 to move down and no longer fit the circulation hole 1011 for sealing. At this time, the cold water in the circulation hole 1011 can flow into the connecting hole 202, fill the lifting cover 201, and be discharged from the drain pipe 203 for circulation. During the process, the water pump external to the water inlet pipe 102 can supply water in real time, ensuring that cooling and water supply can be automatically performed during gas detection. At the same time, when the detection is completed and the lifting cover 201 is lifted, the circulation sliding shaft 301 is released from the squeeze and the sealing is completed. Under the pressure of the spring and the control of water pressure, the closing cover 302 can move up to block the closed flow hole 1011. When the lifting cover 201 descends to close the mounting ring 101, the air pressure is discharged from the exhaust hole 5011 into the lifting shell 601. At this time, under the action of the air pressure, the lifting shell 601 can move, and the closed column 503 is driven to rise and fall by the flow control electric push rod 502 to adjust the blocking of the exhaust hole 5011. The larger the blocked area of ​​the exhaust hole 5011, the worse the flowability, and the exhaust speed can be reduced. Under the pressure of the extrusion spring 604, the lifting shell 601 drives the conductive ring 6012 to descend. In this way, the position of the conductive ring 6012 can be adjusted to fit the connecting ring 402 to ensure that the exhaust pressure and speed are consistent. At this time, the conductive ring 6012 is connected to the connecting ring 402, and the pressure sensor 703 can be energized to perform pressure detection work, and when the lifting cover 201 is controlled to descend, the lifting cover 201 drives the power connection column 801 to descend, and the power connection column 802 will first contact the power connection block 803. At this time, the lifting cover 201 has not yet fitted the mounting ring 101, and the solenoid valve 603 can be energized to open and release the air pressure. Under the action of the air pressure, the mesh on the filter cartridge 704 can be back-blown. At this time, the particles blown out last time can be discharged from the exhaust hole 5011, guided between the guide cover 501 and the inner side of the lifting cover 201, and directly discharged out of the chimney to avoid impurities from being backblown into the chimney. When the filter cartridge 704 is filtering normally, the air pressure of the chimney itself is relatively small, and the closed tension spring 607 can pull the blocking column 606 to cooperate with the stop ring 60 5 keeps a distance without affecting the exhaust. On the contrary, after the solenoid valve 603 is opened, the high-pressure gas is quickly released. At this time, the air pressure increases instantly. The blocking column 606 can lengthen the closed tension spring 607 and then directly fit the closed stop ring 605. As the lifting cover 201 continues to descend, the contact flashlight 802 no longer fits the contact block 803. At this time, the solenoid valve 603 is closed and the power is cut off to stop the air intake. At this time, the gas discharged from the chimney can be filtered and isolated through the mesh on the filter cartridge 704. At this time, the permeability of the filter cartridge 704 becomes worse, and the force pushed upward by the air pressure increases. The pressure is detected in real time by the pressure sensor 703, and the data is observed through an external display. The pressure sensor 703 can be used for reference to detect data parameters within the same time.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An online air quality monitoring device for environmental protection projects, comprising a monitoring mounting member (1), on which a lifting dehumidification member (2) is mounted, characterized in that: The lifting dehumidification component (2) is used for condensation and dehumidification; the monitoring installation component (1) is equipped with a circulation control component (3) for automatically circulating cold water; A monitoring control component (4) is mounted on the monitoring mounting component (1); an exhaust control component (5) is mounted on the lifting dehumidification component (2); the exhaust control component (5) is used to control the exhaust speed; a lifting connection component (6) is slidably mounted on the monitoring control component (4); the lifting connection component (6) is used to be lifted and lowered by air pressure control; A particle monitoring component (7) is installed inside the lifting connection component (6); the particle monitoring component (7) is used to monitor the impurity amount of particles; A backflush control component (8) is installed on the lifting dehumidification component (2); the backflush control component (8) is used to prevent backflush from being forgotten; The monitoring installation component (1) comprises: a mounting ring (101) and a water inlet pipe (102); the interior of the mounting ring (101) is a hollow structure; and the water inlet pipe (102) is fixedly mounted on the mounting ring (101).

2. The online air quality monitoring device for environmental protection engineering according to claim 1 is characterized by: The monitoring mounting component (1) further comprises: a circulation hole (1011) and a lifting hydraulic cylinder (103); two circulation holes (1011) are provided on the mounting ring (101); a circle of the mounting ring (101) is connected to a water inlet pipe (102); four lifting hydraulic cylinders (103) are fixedly mounted inside the mounting ring (101); and the water inlet pipe (102) is externally connected to a water pump.

3. The online air quality monitoring device for environmental protection engineering according to claim 2 is characterized by: The lifting dehumidifying element (2) comprises: a lifting cover (201), a connecting hole (202) and a drainage pipe (203); the lifting cover (201) is fixedly mounted on the output shafts of four lifting hydraulic cylinders (103); the lifting cover (201) is a hollow structure; a connecting hole (202) is provided at the bottom of the lifting cover (201), and the connecting hole (202) is aligned with two circulation holes (1011); a drainage pipe (203) is fixedly mounted on the lifting cover (201), and the drainage pipe (203) is used for drainage; a rubber ring is embedded on the outside of the two circulation holes (1011) on the mounting ring (101); and the lifting cover (201) is an inclined surface structure.

4. The online air quality monitoring device for environmental protection engineering according to claim 3 is characterized by: The circulation control member (3) comprises: a circulation slide shaft (301) and a closing cover (302); the circulation slide shaft (301) is slidably mounted on the mounting ring (101); the circulation slide shaft (301) is located in the middle of the two circulation holes (1011); a closing cover (302) is fixedly mounted on the bottom of the circulation slide shaft (301); the closing cover (302) closes and fits a circle of the connecting hole (202); a spring is provided at the bottom of the closing cover (302); and the spring at the bottom of the closing cover (302) is located inside the mounting ring (101).

5. The online air quality monitoring device for environmental protection engineering according to claim 3 is characterized by: The monitoring control component (4) comprises: a monitoring installation shell (401) and an electric connection ring (402); the monitoring installation shell (401) is threadedly connected to the lifting cover (201); and the electric connection ring (402) is embedded inside the monitoring installation shell (401).

6. The online air quality monitoring device for environmental protection engineering according to claim 3 is characterized by: The exhaust control component (5) comprises: a guide cover (501), an exhaust hole (5011), a flow control electric push rod (502) and a closing column (503); the guide cover (501) is fixedly mounted on the bottom of the lifting cover (201); a gap is provided between the outer side of the guide cover (501) and the inner side of the lifting cover (201); a circle of exhaust holes (5011) is provided on the outer side of the guide cover (501); a flow control electric push rod (502) is fixedly mounted on the bottom of the guide cover (501) via a bracket; a closing column (503) is fixedly mounted on the output shaft of the flow control electric push rod (502); the closing column (503) is slidably plugged into the guide cover (501); and the closing column (503) is used to cover the exhaust hole (5011).

7. The online air quality monitoring device for environmental protection engineering according to claim 5 is characterized by: The lifting connection member (6) comprises: a lifting shell (601), an exhaust pipe (6011), a conductive ring (6012), an air intake pipe (602), a solenoid valve (603) and a compression spring (604); the lifting shell (601) is slidably sleeved on the monitoring installation shell (401); the exhaust pipe (6011) is fixedly mounted on the side of the lifting shell (601), and the exhaust pipe (6011) passes through the monitoring installation shell (401); the air intake pipe (602) is fixedly mounted on the side of the lifting shell (601). The air intake pipe (602) passes through the monitoring installation shell (401); the air intake pipe (602) is installed with a solenoid valve (603); the air intake pipe (602) is externally connected to a pressure tank; a compression spring (604) is fixedly installed on the top of the lifting shell (601), and the compression spring (604) is located inside the monitoring installation shell (401); a conductive ring (6012) is sleeved on the outside of the lifting shell (601), and the conductive ring (6012) is attached to the electrical connection ring (402).

8. The online air quality monitoring device for environmental protection engineering according to claim 7 is characterized by: The lifting connection member (6) further comprises: a stop ring (605), a blocking column (606) and a closed tension spring (607); the end of the exhaust pipe (6011) is fixedly sleeved with a stop ring (605), and the inner side of the stop ring (605) is a sloped structure; the interior of the lifting shell (601) is sleeved with a blocking column (606), and a gap is provided between the outer side of the blocking column (606) and the inner side of the lifting shell (601); the end of the closed tension spring (607) is fixedly installed on the inner side of the lifting shell (601); the other end of the closed tension spring (607) is fixedly installed with a blocking column (606); the blocking column (606) is used to seal and fit the stop ring (605).

9. The online air quality monitoring device for environmental protection engineering according to claim 7 is characterized by: The particle monitoring component (7) comprises: a monitoring installation cylinder (701), a sliding column (702), a pressure sensor (703) and a filter cylinder (704); the monitoring installation cylinder (701) is fixedly installed on the inner side of the lifting shell (601); the sliding column (702) is slidably installed inside the monitoring installation cylinder (701), and a spring is connected between the sliding column (702) and the monitoring installation cylinder (701); the pressure sensor (703) is fixedly installed at the bottom of the sliding column (702); the filter cylinder (704) is slidably installed inside the lifting shell (601), and the end of the pressure sensor (703) is attached to the filter cylinder (704); the filter cylinder (704) is provided with a filter mesh hole inside; the conductive ring (6012), the power connection ring (402) and the pressure sensor (703) are connected in series with a power supply.

10. The online air quality monitoring device for environmental protection engineering according to claim 7, characterized in that: The back-blowing control component (8) comprises: an electric pole (801), an electric torch (802) and an electric block (803); the electric pole (801) is fixedly mounted on the bottom of the lifting cover (201); the electric torch (802) is sleeved on the outside of the electric pole (801); the electric block (803) is fixedly mounted on the side of the lifting hydraulic cylinder (103) on the same side; the electric pole (801) is sleeved in the electric block (803); the electric torch (802), the electric block (803) and the solenoid valve (603) are connected in series to a power supply.

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