Laboratory environment monitoring system based on sensor network

Abstract

The present application relates to the technical field of environment monitoring system, disclose laboratory environment monitoring system based on sensor network, including controller, gas monitoring assembly and wastewater monitoring assembly, gas monitoring assembly monitors the gas in laboratory environment, to obtain gas data;Wastewater monitoring assembly monitors the wastewater in laboratory environment to obtain wastewater data;When the gas data exceeds the set gas parameter, the controller controls the inlet fan and the outlet fan to be in working condition;When the wastewater data is higher than the set wastewater parameter, the wastewater in the buffer tank is discharged into the treatment water channel;When the wastewater data is lower than the set wastewater parameter, and the water level is higher than the set water level, the wastewater in the buffer tank is discharged through the normal water channel;The controller controls the inlet fan and the outlet fan to be in working condition or stop state according to the gas data, and controls the wastewater in the buffer tank to be discharged through the normal water channel or enters the treatment water channel according to the wastewater data, to realize intelligent monitoring of laboratory environment.

Description

Technical Field

[0001] This invention relates to the technical field of environmental monitoring systems, and more specifically, to a laboratory environmental monitoring system based on sensor networks. Background Technology

[0002] A laboratory is a place for conducting various experiments. During experiments, various gases and wastewater are often generated in the laboratory. These gases and wastewater need to be discharged from the laboratory to avoid affecting the experimental personnel or experimental equipment, so as to form a laboratory environment that meets the requirements.

[0003] In the existing technology, the laboratory is equipped with a ventilation structure and a drainage structure to discharge the gas and wastewater in the laboratory. In addition, no monitoring system is set up in the laboratory, and the ventilation structure and drainage structure are in a continuous working state, which cannot achieve the purpose of intelligent monitoring of the laboratory environment. Summary of the Invention

[0004] The purpose of this invention is to provide a laboratory environment monitoring system based on sensor networks, which aims to solve the problem that existing technologies cannot achieve intelligent monitoring of the laboratory environment.

[0005] The present invention is implemented as follows: a laboratory environment monitoring system based on a sensor network includes a controller, a gas monitoring component, and a wastewater monitoring component. The gas monitoring component and the wastewater monitoring component are each composed of multiple sensors, and the sensors are electrically connected to the controller. The gas monitoring component monitors the gas in the laboratory environment to obtain gas data and transmits the gas data to the controller; the wastewater monitoring component monitors the wastewater in the laboratory environment to obtain wastewater data and transmits the wastewater data to the controller. The laboratory is equipped with an air inlet duct that draws in fresh air from outside and an air outlet duct that discharges waste gas from the laboratory. The air inlet duct is equipped with an intake fan and a fresh air filtration structure, and the air outlet duct is equipped with an exhaust fan and a waste gas treatment structure. When the gas data exceeds the set gas parameters, the controller controls the intake fan and the exhaust fan to be in working state; when the gas data is lower than the set gas parameters, the controller controls the intake fan and the exhaust fan to be in a stopped state. The laboratory is equipped with a drainage channel that connects to a buffer tank. The wastewater monitoring component is installed in the buffer tank. Wastewater from the laboratory is discharged into the buffer tank through the drainage channel. The buffer tank is connected to a normal water channel and a treatment water channel. The treatment water channel is equipped with a wastewater treatment structure for filtering the wastewater. When the wastewater data is higher than the set wastewater parameters, the wastewater in the buffer tank is discharged into the treatment waterway, treated by the wastewater treatment structure, and then discharged to the outside; when the wastewater data is lower than the set wastewater parameters, and the water level in the buffer tank is higher than the set water level, the wastewater in the buffer tank is discharged through the normal waterway. Along the direction of waste flow, the waste gas treatment structure and the exhaust fan are arranged in sequence. The waste gas treatment structure includes an electrostatic dust collector for adsorbing dust in the waste gas and a low-temperature plasma purifier for sterilizing the waste gas. The electrostatic dust collector includes a collection cylinder, in which an electrostatic cylinder is provided. The electrostatic cylinder has an electrostatic channel for the waste gas to pass through, and a collection chamber arranged in a ring is provided between the collection cylinder and the electrostatic cylinder. The electrostatic cylinder is provided with multiple inclined dust collection holes, which are arranged backward along the flow direction of the exhaust gas in the electrostatic channel. During the flow of the exhaust gas in the electrostatic channel, the dust in the exhaust gas is electrostatically attracted by the electrostatic cylinder and enters the collection chamber through the multiple dust collection holes.

[0006] Furthermore, the gas monitoring component includes a PM2.5 sensor and a gas sensor for monitoring the quality of exhaust gas.

[0007] Furthermore, the wastewater monitoring component includes a bacteria sensor, a pH sensor, and a heavy metal sensor.

[0008] Furthermore, the electrostatic cylinder is arranged horizontally, with its upper part enclosed and its lower part forming a dust collection area, in which multiple dust collection holes are disposed.

[0009] Furthermore, along the flow direction of the exhaust gas in the electrostatic duct, the dust collection area is curved in multiple wavy sections, forming multiple spaced recessed areas, and multiple dust collection holes are arranged in the recessed areas.

[0010] Furthermore, the collection chamber is provided with a plurality of insulated inclined cylinders, the upper end of the inclined cylinders being connected to the electrostatic cylinder and communicating with the dust collection hole, and the lower end of the inclined cylinders extending freely into the collection chamber; the inclined cylinders are arranged to tilt backward along the flow direction of the gas in the electrostatic channel.

[0011] Furthermore, along the flow direction of the fresh air, the fresh air filtration structure and the air intake fan are arranged in sequence; the fresh air filtration structure includes a filtration section and a purification section, the filtration section is provided with two spaced activated carbon plates, and there is an elastic cavity between the two activated carbon plates. The inner wall of the elastic cavity is covered with an airbag ring, which is arranged around the circumference of the elastic cavity. The thickness of the airbag ring gradually decreases along the flow direction of fresh air in the elastic cavity. The outer side of the airbag ring is fixed to the inner wall of the elastic cavity, and the inner side of the airbag ring is arranged towards the center of the elastic cavity. As the fresh air flows in the elastic cavity, it compresses the airbag ring, causing it to deform elastically away from the direction of air flow. The airbag ring then applies a reverse compressive force to the fresh air in the direction of air flow.

[0012] Furthermore, the inner side of the airbag ring is provided with a plurality of stepped rings made of rigid material. The stepped rings are arranged around the circumference of the airbag ring, and the plurality of stepped rings are arranged sequentially at intervals along the fresh air flow direction, and the stepped rings are arranged facing the fresh air flow direction; along the direction from the inside to the outside of the stepped rings, the stepped rings are arranged at an angle away from the fresh air flow direction.

[0013] Furthermore, the wastewater treatment structure includes a sedimentation tank and a reaction tank. Along the wastewater flow direction, the treatment channel, sedimentation tank, and reaction tank are sequentially connected. A horizontally arranged mesh layer is provided in the middle of the sedimentation tank. An elastic membrane layer is provided on the mesh layer. The membrane layer has multiple water-permeable holes. There is an inlet gap between the membrane layer and the mesh layer. The sedimentation tank has an upper cavity at the top, which is located above the membrane layer, and a lower cavity at the bottom, which is located below the mesh layer; the treatment water channel is connected to the inlet water compartment, and the upper cavity is connected to the reaction tank. After the wastewater enters the inlet compartment, it flows downward into the lower chamber for sedimentation, while the membrane layer is squeezed upward to arch and deform, passing through the permeable holes into the upper chamber. Simultaneously, the membrane layer squeezes the wastewater in the inlet compartment downward, so that particulate impurities in the wastewater enter the lower chamber for sedimentation.

[0014] Furthermore, the reaction tank is equipped with a longitudinally arranged rotating cylinder. The rotating cylinder has multiple centrifuge holes on its outer circumference and a cavity for holding the reaction reagents. Wastewater from the upper cavity enters the reaction tank. As the rotating cylinder rotates, the reaction reagents in the cavity are dispersed into the wastewater through the multiple centrifuge holes to react with the wastewater. Simultaneously, the rotating cylinder agitates the wastewater in the reaction tank.

[0015] Compared with existing technologies, the sensor network-based laboratory environment monitoring system provided by this invention, through the arrangement of a controller, a gas monitoring component, and a wastewater monitoring component, obtains gas data of the laboratory environment, and the wastewater monitoring component obtains wastewater data of the laboratory environment. The controller controls the intake and exhaust fans to be in working or stopped state according to the gas data, and controls the wastewater in the buffer tank to be discharged through the normal water channel or enter the treatment water channel for treatment by the wastewater treatment structure according to the wastewater data, so as to realize intelligent monitoring of the laboratory environment. The working status of the intake fan, exhaust fan, and wastewater treatment structure is intelligently controlled by the controller.

[0016] Secondly, the exhaust gas discharged from the exhaust duct is treated by the exhaust gas treatment structure to ensure that the exhaust gas does not pollute the external environment; the fresh air entering the laboratory from the intake duct is filtered by the fresh air filtration structure to ensure that the air in the laboratory environment meets the requirements. Furthermore, the wastewater discharged from the drainage channel first enters the buffer tank for buffer storage. After being monitored by the wastewater monitoring components, it is then discharged through the normal water channel or the treatment water channel. The wastewater discharged through the treatment water channel is treated by the wastewater treatment structure to ensure that the wastewater does not pollute the external environment.

[0017] In addition, in the exhaust gas treatment structure, as the exhaust gas passes through the electrostatic channel, the dust is electrostatically adsorbed by the electrostatic cylinder and enters the collection chamber through the dust collection hole to ensure the collection of dust without affecting the flow of exhaust gas. The dust collection hole is arranged at an angle to avoid the dust in the collection chamber being disturbed by the flowing exhaust gas, and to facilitate the entry of electrostatically adsorbed dust into the collection chamber. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the laboratory environment monitoring system based on sensor networks provided by the present invention. Figure 2 This is an internal schematic diagram of the electrostatic vacuum cleaner provided by the present invention; Figure 3 This is a partial internal schematic diagram of the fresh air filtration structure provided by the present invention; Figure 4 This is a schematic diagram of the interior of the sedimentation tank provided by the present invention; Figure 5 This is a schematic diagram of the internal structure of the reaction tank provided by the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0021] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0022] Reference Figure 1-5 The image shown is a preferred embodiment of the present invention.

[0023] The sensor network-based laboratory environmental monitoring system includes a controller, a gas monitoring component, and a wastewater monitoring component. Each of the gas and wastewater monitoring components consists of multiple sensors, which are electrically connected to the controller. The sensors can communicate with the controller wirelessly or via wired connections. Additionally, the controller can be electrically connected to a cloud server or local server via wireless communication.

[0024] The gas monitoring component monitors the gases in the laboratory environment to obtain gas data and transmits the gas data to the controller; the wastewater monitoring component monitors the wastewater in the laboratory environment to obtain wastewater data and transmits the wastewater data to the controller.

[0025] The laboratory is equipped with an air inlet duct that draws in fresh air from outside and an air outlet duct that exhausts waste gas from the laboratory. The air inlet duct is equipped with an air intake fan and a fresh air filter, while the air outlet duct is equipped with an air exhaust fan and a waste gas treatment structure. When the gas data exceeds the set gas parameters, the controller controls the air intake fan and the air outlet fan to be in working condition. When the gas data is lower than the set gas parameters, the controller controls the air intake fan and the air outlet fan to be in a stopped condition. The laboratory is equipped with a drainage channel that connects to a buffer tank. Wastewater monitoring components are installed in the buffer tank. Wastewater from the laboratory is discharged into the buffer tank through the drainage channel. The buffer tank is connected to a normal water channel and a treatment water channel. The treatment water channel is equipped with a wastewater treatment structure for filtering wastewater.

[0026] When the wastewater level is higher than the set wastewater parameters, the wastewater in the buffer tank is discharged into the treatment channel, treated by the wastewater treatment structure, and then discharged to the outside; when the wastewater level is lower than the set wastewater parameters, and the water level in the buffer tank is higher than the set water level, the wastewater in the buffer tank is discharged through the normal channel. Along the flow direction of the waste, the waste gas treatment structure and the exhaust fan are arranged in sequence. The waste gas treatment structure includes an electrostatic dust collector that adsorbs dust in the waste gas and a low-temperature plasma purifier that sterilizes the waste gas. The electrostatic dust collector includes a collection cylinder 100, an electrostatic cylinder 200 in the collection cylinder 100, an electrostatic channel 201 for the waste gas to pass through in the electrostatic cylinder 200, and a collection chamber 101 arranged in a ring between the collection cylinder 100 and the electrostatic cylinder 200. The electrostatic cylinder 200 is provided with multiple inclined dust collection holes, which are arranged backward along the flow direction of the exhaust gas in the electrostatic channel 201. During the flow of the exhaust gas in the electrostatic channel 201, the dust in the exhaust gas is electrostatically adsorbed by the electrostatic cylinder 200 and enters the collection chamber 101 through the multiple dust collection holes.

[0027] The aforementioned sensor network-based laboratory environment monitoring system, by deploying a controller, gas monitoring components, and wastewater monitoring components, obtains gas data of the laboratory environment through the gas monitoring components and wastewater monitoring components obtain wastewater data of the laboratory environment. Based on the gas data, the controller controls the intake and exhaust fans to be in working or stopped state. Based on the wastewater data, the controller controls the wastewater in the buffer tank to be discharged through the normal water channel or enter the treatment water channel for treatment by the wastewater treatment structure, so as to achieve intelligent monitoring of the laboratory environment. The working status of the intake and exhaust fans and the wastewater treatment structure is intelligently controlled by the controller.

[0028] Secondly, the exhaust gas discharged from the exhaust duct is treated by the exhaust gas treatment structure to ensure that the exhaust gas does not pollute the external environment; the fresh air entering the laboratory from the intake duct is filtered by the fresh air filtration structure to ensure that the air in the laboratory environment meets the requirements. Furthermore, the wastewater discharged from the drainage channel first enters the buffer tank for buffer storage. After being monitored by the wastewater monitoring components, it is then discharged through the normal water channel or the treatment water channel. The wastewater discharged through the treatment water channel is treated by the wastewater treatment structure to ensure that the wastewater does not pollute the external environment.

[0029] In addition, in the exhaust gas treatment structure, as the exhaust gas passes through the electrostatic channel 201, the dust is electrostatically adsorbed by the electrostatic cylinder 200 and enters the collection chamber 101 through the dust collection hole to ensure the collection of dust without affecting the flow of exhaust gas. The dust collection hole is arranged at an angle to avoid the dust in the collection chamber 101 being disturbed by the flowing exhaust gas, and to facilitate the entry of the electrostatically adsorbed dust into the collection chamber 101.

[0030] In this embodiment, the gas monitoring component includes a PM2.5 sensor and a gas sensor for monitoring the quality of exhaust gas. The PM2.5 sensor monitors the concentration of dust in the exhaust gas, and the gas sensor is used to monitor the acidity, alkalinity, etc. of the exhaust gas.

[0031] In this embodiment, the wastewater monitoring component includes a bacterial sensor, a pH sensor, and a heavy metal sensor. The bacterial sensor is used to monitor whether the wastewater contains bacteria that pollute the environment, the pH sensor is used to monitor the acidity or alkalinity of the wastewater, and the heavy metal sensor is used to monitor whether the wastewater contains heavy metals.

[0032] In this embodiment, the electrostatic cylinder 200 is arranged horizontally, with the upper part of the electrostatic cylinder 200 being closed and the lower part of the electrostatic cylinder 200 forming a dust collection area. Multiple dust collection holes are arranged in the dust collection area, which facilitates the entry of dust into the collection chamber 101 through the dust collection holes and prevents exhaust gas from entering the collection chamber 101, thus avoiding disturbance to the dust in the collection chamber 101.

[0033] In this embodiment, along the flow direction of the exhaust gas in the electrostatic duct 201, the dust collection area is curved in multiple wavy sections, forming multiple spaced recessed areas 202, and multiple dust collection holes are disposed in the recessed areas 202. In this way, the disturbance to the dust collection area is reduced during the flow of exhaust gas in the electrostatic duct 201, thereby preventing exhaust gas from entering the collection chamber 101, and also facilitating dust to enter the collection chamber 101 through the dust collection holes.

[0034] In this embodiment, the collection chamber 101 is provided with a plurality of insulated inclined cylinders 203. The upper end of the inclined cylinder 203 is connected to the electrostatic cylinder 200 and communicates with the dust collection hole. The lower end of the inclined cylinder 203 extends freely into the collection chamber 101. Along the flow direction of gas in the electrostatic channel 201, the inclined cylinder 203 is arranged to tilt backward.

[0035] In this way, the particles that are easily attracted by electrostatics can enter the collection chamber 101 through the dust collection hole, and the waste gas in the flow will not enter the collection chamber 101 through the dust collection hole. In addition, the dust in the collection chamber 101 will not be carried out of the collection chamber 101 by the waste flow.

[0036] In this embodiment, the fresh air filtration structure and the air intake fan are arranged in sequence along the flow direction of the fresh air; the fresh air filtration structure includes a filtration section and a purification section, the filtration section is provided with two spaced activated carbon plates 300, and there is an elastic cavity 301 between the two activated carbon plates 300. The inner wall of the elastic cavity 301 is covered with an airbag ring 400, which is arranged around the circumference of the elastic cavity 301. The thickness of the airbag ring 400 gradually decreases along the flow direction of fresh air in the elastic cavity 301. The outer side of the airbag ring 400 is fixed to the inner wall of the elastic cavity 301, and the inner side of the airbag ring 400 is arranged towards the center of the elastic cavity 301. As the fresh air flows in the elastic cavity 301, the fresh air compresses the airbag ring 400 and deforms it in a direction away from the direction of fresh air flow. The airbag ring 400 then applies a reverse compressive force to the fresh air in the direction of fresh air flow.

[0037] After the exhaust gas passes through the activated carbon plate 300 and enters the elastic cavity 301, as the pressure in the elastic cavity 301 increases, the exhaust gas compresses and deforms the airbag ring 400. As the thickness of the airbag ring 400 gradually decreases, the compressed airbag ring 400 pushes the exhaust gas forward, applying a reverse compressive force to the exhaust gas to accelerate its flow, thereby ensuring that the exhaust gas flows rapidly between the two activated carbon plates 300.

[0038] In this embodiment, the inner side of the airbag ring 400 is provided with a plurality of stepped rings 401 made of rigid material. The stepped rings 401 are arranged around the circumference of the airbag ring 400. The plurality of stepped rings 401 are arranged sequentially at intervals along the fresh air flow direction, and the stepped rings 401 are arranged facing the fresh air flow direction. Along the direction from the inside to the outside of the stepped rings 401, the stepped rings 401 are arranged at an angle away from the fresh air flow direction.

[0039] The stepped ring 401 is made of a rigid material to prevent deformation of the stepped ring 401 during the deformation process of the airbag ring 400, and to keep the stepped ring 401 always facing forward. In this way, the compressed airbag ring 400 drives the waste to flow forward through the squeezing of multiple stepped rings 401, and applies a reverse driving force to the waste gas.

[0040] In this embodiment, the wastewater treatment structure includes a sedimentation tank 500 and a reaction tank 600. Along the wastewater flow direction, the treatment water channel, sedimentation tank 500 and reaction tank 600 are sequentially connected. A horizontally arranged mesh layer 505 is provided in the middle of the sedimentation tank 500. An elastic membrane layer 504 is provided on the mesh layer 505. The membrane layer 504 has multiple water permeable holes. There is an inlet gap 502 between the membrane layer 504 and the mesh layer 505. The sedimentation tank 500 has an upper cavity 503 at its upper part, which is located above the membrane layer 504. The sedimentation tank 500 has a lower cavity 501 at its lower part, which is located below the mesh layer 505. The treatment water channel is connected to the inlet water compartment 502, and the upper cavity 503 is connected to the reaction tank 600. After the wastewater enters the inlet compartment 502, it flows downward into the lower cavity 501 for sedimentation, and upwards it squeezes the membrane layer 504 to arch and deform, passing through the permeable holes into the upper cavity 503. Simultaneously, the membrane layer 504 downwards squeezes the wastewater in the inlet compartment 502, so that particulate impurities in the wastewater enter the lower cavity 501 for sedimentation.

[0041] The drainage channel connects to the inlet compartment 502. During the process of wastewater flowing into the inlet compartment 502, it is blocked by the membrane layer 504 and enters the lower cavity 501 through the mesh layer 505 to facilitate the sedimentation of particulate matter in the waste gas. In addition, the wastewater squeezes the membrane layer 504 upward and bulges it, passing through the water permeable holes into the upper cavity 503. The arched and deformed membrane layer 504 exerts a reverse downward squeeze on the wastewater, so that the particulate matter in the wastewater enters the lower cavity 501, which greatly improves the sedimentation effect of the wastewater.

[0042] In this embodiment, a longitudinally arranged rotating cylinder 602 is provided in the reaction tank 600. The outer periphery of the rotating cylinder 602 is provided with multiple centrifuge holes. The rotating cylinder 602 is provided with a cylindrical cavity 601 for storing the reaction reagent. Wastewater in the upper cavity 503 enters the reaction tank 600. The rotating cylinder 602 rotates, and the reaction reagent in the cylindrical cavity 601 is sprinkled into the wastewater through the multiple centrifuge holes to react with the wastewater. The rotating cylinder 602 synchronously drives the wastewater in the reaction tank 600 to be stirred.

[0043] The rotation of the rotating drum 602 allows for the circumferential centrifugal dispersion of the reaction reagents, ensuring a more uniform mixing of the reagents into the wastewater and preventing clumping. Additionally, the rotation of the drum 602 agitates the wastewater, resulting in a more uniform mixture between the wastewater and the reaction reagents.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laboratory environment monitoring system based on sensor networks, characterized in that, It includes a controller, a gas monitoring component, and a wastewater monitoring component. The gas monitoring component and the wastewater monitoring component are each composed of multiple sensors, and the sensors are electrically connected to the controller. The gas monitoring component monitors the gas in the laboratory environment to obtain gas data and transmits the gas data to the controller; the wastewater monitoring component monitors the wastewater in the laboratory environment to obtain wastewater data and transmits the wastewater data to the controller. The laboratory is equipped with an air inlet duct that draws in fresh air from outside and an air outlet duct that discharges waste gas from the laboratory. The air inlet duct is equipped with an intake fan and a fresh air filtration structure, and the air outlet duct is equipped with an exhaust fan and a waste gas treatment structure. When the gas data exceeds the set gas parameters, the controller controls the intake fan and the exhaust fan to be in working state; when the gas data is lower than the set gas parameters, the controller controls the intake fan and the exhaust fan to be in a stopped state. The laboratory is equipped with a drainage channel that connects to a buffer tank. The wastewater monitoring component is installed in the buffer tank. Wastewater from the laboratory is discharged into the buffer tank through the drainage channel. The buffer tank is connected to a normal water channel and a treatment water channel. The treatment water channel is equipped with a wastewater treatment structure for filtering the wastewater. When the wastewater data is higher than the set wastewater parameters, the wastewater in the buffer tank is discharged into the treatment waterway, treated by the wastewater treatment structure, and then discharged to the outside; when the wastewater data is lower than the set wastewater parameters, and the water level in the buffer tank is higher than the set water level, the wastewater in the buffer tank is discharged through the normal waterway. Along the direction of waste flow, the waste gas treatment structure and the exhaust fan are arranged in sequence. The waste gas treatment structure includes an electrostatic dust collector for adsorbing dust in the waste gas and a low-temperature plasma purifier for sterilizing the waste gas. The electrostatic dust collector includes a collection cylinder, in which an electrostatic cylinder is provided. The electrostatic cylinder has an electrostatic channel for the waste gas to pass through, and a collection chamber arranged in a ring is provided between the collection cylinder and the electrostatic cylinder. The electrostatic cylinder is provided with multiple inclined dust collection holes, which are arranged backward along the flow direction of the exhaust gas in the electrostatic channel. During the flow of the exhaust gas in the electrostatic channel, the dust in the exhaust gas is electrostatically attracted by the electrostatic cylinder and enters the collection chamber through the multiple dust collection holes.

2. The laboratory environment monitoring system based on sensor networks as described in claim 1, characterized in that, The gas monitoring component includes a PM2.5 sensor and a gas sensor for monitoring the quality of exhaust gas.

3. The laboratory environment monitoring system based on sensor networks as described in claim 1, characterized in that, The wastewater monitoring component includes a bacteria sensor, a pH sensor, and a heavy metal sensor.

4. The laboratory environment monitoring system based on sensor networks as described in claim 1, characterized in that, The electrostatic cylinder is arranged horizontally, with its upper part enclosed and its lower part forming a dust collection area, in which multiple dust collection holes are arranged.

5. The laboratory environment monitoring system based on sensor networks as described in claim 4, characterized in that, Along the flow direction of the exhaust gas in the electrostatic duct, the dust collection area is curved in multiple wavy sections, forming multiple recessed areas arranged at intervals, and multiple dust collection holes are arranged in the recessed areas.

6. The laboratory environment monitoring system based on sensor networks as described in claim 5, characterized in that, The collection chamber is provided with multiple insulated inclined cylinders. The upper end of the inclined cylinder is connected to the electrostatic cylinder and communicates with the dust collection hole. The lower end of the inclined cylinder extends freely into the collection chamber. The inclined cylinder is arranged to tilt backward along the flow direction of the gas in the electrostatic channel.

7. The sensor network-based laboratory environment monitoring system as described in any one of claims 1 to 6, characterized in that, Along the direction of the fresh air flow, the fresh air filtration structure and the air intake fan are arranged in sequence; the fresh air filtration structure includes a filtration section and a purification section, the filtration section is provided with two spaced-apart activated carbon plates, and there is an elastic cavity between the two activated carbon plates. The inner wall of the elastic cavity is covered with an airbag ring, which is arranged around the circumference of the elastic cavity. The thickness of the airbag ring gradually decreases along the flow direction of fresh air in the elastic cavity. The outer side of the airbag ring is fixed to the inner wall of the elastic cavity, and the inner side of the airbag ring is arranged towards the center of the elastic cavity. As the fresh air flows in the elastic cavity, it compresses the airbag ring, causing it to deform elastically away from the direction of air flow. The airbag ring then applies a reverse compressive force to the fresh air in the direction of air flow.

8. The sensor network-based laboratory environment monitoring system as described in claim 7, characterized in that, The inner side of the airbag ring is provided with multiple stepped rings made of rigid material. The stepped rings are arranged around the circumference of the airbag ring. The multiple stepped rings are arranged sequentially at intervals along the fresh air flow direction, and the stepped rings are arranged facing the fresh air flow direction. Along the direction from the inside to the outside of the stepped rings, the stepped rings are arranged at an angle away from the fresh air flow direction.

9. The sensor network-based laboratory environment monitoring system as described in any one of claims 1 to 6, characterized in that, The wastewater treatment structure includes a sedimentation tank and a reaction tank. Along the wastewater flow direction, the treatment channel, sedimentation tank, and reaction tank are sequentially connected. A horizontally arranged mesh layer is provided in the middle of the sedimentation tank. An elastic membrane layer is provided on the mesh layer. The membrane layer has multiple water-permeable holes. There is an inlet gap between the membrane layer and the mesh layer. The sedimentation tank has an upper cavity at the top, which is located above the membrane layer, and a lower cavity at the bottom, which is located below the mesh layer; the treatment water channel is connected to the inlet water compartment, and the upper cavity is connected to the reaction tank. After the wastewater enters the inlet compartment, it flows downward into the lower chamber for sedimentation, while the membrane layer is squeezed upward to arch and deform, passing through the permeable holes into the upper chamber. Simultaneously, the membrane layer squeezes the wastewater in the inlet compartment downward, so that particulate impurities in the wastewater enter the lower chamber for sedimentation.

10. The sensor network-based laboratory environment monitoring system as described in any one of claims 1 to 6, characterized in that, The reaction tank is equipped with a longitudinally arranged rotating cylinder. The outer circumference of the rotating cylinder is provided with multiple centrifuge holes. The rotating cylinder is provided with a cavity for storing the reaction reagent. Wastewater in the upper cavity enters the reaction tank. The rotating cylinder rotates, and the reaction reagent in the cavity is sprinkled into the wastewater through the multiple centrifuge holes to react with the wastewater. The rotating cylinder synchronously drives the wastewater in the reaction tank to be stirred.

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