Leak detection and dust removal system

Abstract

This utility model discloses a leak detection and dust removal system, relating to the field of dust removal. The system includes: a dust collector with a dust removal chamber connected to an input pipe for supplying airflow to be removed into the chamber; a pressure sensor located within the dust collector for monitoring the pressure inside the chamber; a storage compartment for storing phosphor powder connected to the input pipe; and a control system including an electrically controlled valve for controlling the connection and disconnection between the storage compartment and the input pipe, the valve being electrically connected to the pressure sensor. This leak detection and dust removal system can automatically detect leaks without relying on manual operation.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology, and in particular to a leak detection and dust removal system. Background Technology

[0002] Baghouse dust collectors are common dust removal equipment in industrial production. Their working principle involves using filter bags as the filtration medium to trap dust particles from the gas on the bag surface, thus purifying the gas. In practical applications, the normal operation of baghouse dust collectors is crucial for protecting the production environment and reducing pollutant emissions. With the continuous development of industrial production, the application scope of baghouse dust collectors has gradually expanded. However, during long-term use, filter bags are prone to damage and aging, leading to reduced dust removal efficiency and even potential dust leaks. Currently, leak detection methods for baghouse dust collectors mainly include fluorescent powder detection and pressure monitoring. Fluorescent powder detection is a commonly used method, which involves introducing fluorescent powder into the dust collection system and using its properties to determine whether the filter bags are damaged.

[0003] However, in dust collector leak detection methods, traditional fluorescent powder detection methods usually require manual operation, which is not only labor-intensive but also has low detection efficiency and makes it difficult to achieve real-time monitoring. Utility Model Content

[0004] The main purpose of this utility model is to provide a leak detection and dust removal system, which aims to solve the technical problems of current dust collector leak detection relying on manual operation, which is labor-intensive and has low detection efficiency.

[0005] To achieve the above objectives, the leak detection and dust removal system proposed in this utility model includes:

[0006] The dust collector is equipped with a dust collection chamber, which is connected to an inlet pipe for conveying the airflow to be dusted into the dust collection chamber.

[0007] A pressure sensor is installed inside the dust collector and is used to monitor the pressure inside the dust collector chamber;

[0008] A storage chamber for storing phosphor, the storage chamber being connected to the input tube; and

[0009] The control system includes an electrically controlled valve for controlling the connection and interruption between the storage compartment and the input pipe, and the electrically controlled valve is electrically connected to the pressure sensor.

[0010] In one embodiment, the control system further includes a controller, which is connected to the electrically controlled valve and the pressure sensor respectively. The controller has a first threshold. When the pressure detected by the pressure sensor is less than the first threshold, the controller controls the electrically controlled valve to operate, so that the storage chamber is connected to the input pipe, and the phosphor enters the dust removal chamber through the input pipe and accumulates at the leak point.

[0011] In one embodiment, the controller further includes a second threshold. When the total amount of phosphor delivered by the electronically controlled valve reaches the second threshold, the controller controls the electronically controlled valve to operate, thereby interrupting the connection between the storage chamber and the input pipe.

[0012] In one embodiment, the control system further includes a display instrument connected to both the pressure sensor and the controller, and the display instrument is used to display the pressure monitored by the pressure sensor.

[0013] In one embodiment, the storage chamber is provided with an anti-caking device, which includes a rotating part and a driving part. The rotating part is located inside the storage chamber, and the driving part is located outside the storage chamber. The driving part is drivenly connected to the rotating part and drives the rotating part to rotate, thereby agitating the phosphor in the storage chamber.

[0014] In one embodiment, the rotating part includes a auger shaft and auger blades. The driving part is driven to the auger shaft and drives the auger shaft to rotate. The auger blades are spirally disposed on the outer circumferential surface of the auger shaft. The rotation of the auger shaft drives the phosphor at the bottom of the storage chamber to move to the top of the storage chamber.

[0015] In one embodiment, the auger blade is further connected to a scraper, and multiple scrapers are provided. The multiple scrapers are spaced apart along the axial direction of the auger shaft, and the ends of the scrapers are in contact with the inner wall of the storage chamber.

[0016] In one embodiment, the storage compartment is provided with a moisture-proof layer, which is attached to the inner wall of the storage compartment; and / or,

[0017] The storage chamber is connected to a conveying pipe, and one end of the conveying pipe away from the storage chamber is connected to the input pipe. The electrically controlled valve is located on the conveying pipe.

[0018] In one embodiment, the dust collector includes a housing, inside which a tube sheet and a dust collection bag are provided. The tube sheet divides the space inside the housing into a clean air chamber and a dust collection chamber. The dust collection bag is disposed in the dust collection chamber and connected to the tube sheet. The airflow to be dusted passes through the dust collection bag to remove dust, forming a purified airflow that flows into the clean air chamber.

[0019] In one embodiment, the leak detection and dust removal system further includes an output pipe connected to the clean air chamber, through which the purified airflow is discharged; and / or,

[0020] The bottom of the dust removal chamber is provided with a dust discharge outlet.

[0021] This invention employs an input pipe to transport the airflow to be cleaned to the dust collection chamber for dust removal. A pressure sensor monitors the pressure inside the dust collection chamber in real time. When a leak occurs, the internal pressure decreases. When the pressure drops to a certain value, an electrically controlled valve is triggered, opening the storage chamber and connecting it to the input pipe. The fluorescent powder in the storage chamber is then drawn into the input pipe and enters the dust collection chamber. The fluorescent powder accumulates at the leak point, thus automatically detecting the location of the leak in the dust collection chamber. Leak detection can be completed without manual intervention, significantly improving work efficiency and detection accuracy. Furthermore, the pressure sensor also monitors pressure changes inside the dust collection chamber in real time, increasing the automation of leak detection, improving dust removal efficiency, and reducing maintenance costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of an embodiment of the leak detection and dust removal system provided by this utility model;

[0024] Figure 2 A schematic diagram of the anti-caking device in an embodiment of the leak detection and dust removal system provided by this utility model.

[0025] Explanation of icon numbers:

[0026] 100. Dust collector; 110. Dust collection chamber; 120. Clean air chamber; 130. Inlet pipe; 140. Tube sheet; 150. Dust collector bag; 160. Outlet pipe; 170. Dust discharge port;

[0027] 200. Pressure sensor;

[0028] 300. Storage bin; 310. Rotating part; 311. Auger shaft; 312. Auger blades; 313. Scraper; 320. Drive unit; 330. Conveying pipe;

[0029] 400. Controller; 410. Electrically controlled valve; 420. Display instrument.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] In existing methods for leak detection in dust collectors, traditional fluorescent powder detection methods usually require manual operation, which is not only labor-intensive but also inefficient and makes it difficult to achieve real-time monitoring.

[0035] This utility model proposes a leak detection and dust removal system.

[0036] Please see Figure 1 and Figure 2In one embodiment of this utility model, the leak detection and dust removal system includes: a dust collector 100, a pressure sensor 200, a storage chamber 300, and a control system. The dust collector 100 is provided with a dust removal chamber 110, which is connected to an input pipe 130 for conveying the airflow to be removed into the dust removal chamber 110. The pressure sensor 200 is located inside the dust collector 100 and is used to monitor the pressure inside the dust removal chamber 110. The storage chamber 300 is used to store phosphor and is connected to the input pipe 130. The control system includes an electrically controlled valve 410 for controlling the connection and disconnection between the storage chamber 300 and the input pipe 130. The electrically controlled valve is electrically connected to the pressure sensor 200.

[0037] It should be noted that the airflow to be cleaned contains dust and other impurities. The dust collector 100 purifies the airflow, trapping the dust and impurities within the dust collection chamber 110, and then discharges the cleaned airflow. The fluorescent powder used is a non-toxic, environmentally friendly fluorescent tracer powder, with a particle size selected based on the dust collection precision of the dust collector 100. In practice, fluorescent powder with a particle size of 5-10 micrometers is generally used. This fluorescent powder exhibits a bright green fluorescence under ultraviolet light, making it easy to observe with the naked eye. The pressure sensor 200 is a high-precision sensor with a measurement accuracy of ±0.5 Pa and a measurement range of 0-2000 Pa, capable of real-time monitoring of internal pressure changes within the dust collector 100.

[0038] In the specific implementation process, the input pipe 130 is connected to the dust removal chamber 110, and the input pipe 130 delivers the airflow to be dusted into the dust removal chamber 110. The airflow undergoes dust removal in the dust removal chamber 110. The input pipe 130 is also connected to a storage bin 300 for storing phosphor. During normal dust removal, the input pipe 130 and the storage bin 300 are disconnected. When the solenoid valve 410 is triggered and opened, the storage bin 300 is connected to the input pipe 130. Under the action of the airflow, the phosphor enters the input pipe 130, realizing the self-priming introduction of phosphor. The solenoid valve 410 of the control system is installed at the outlet of the storage bin 300 and is electrically connected to the pressure sensor 200. The solenoid valve 410 operates according to the pressure value monitored by the pressure sensor 200, thereby controlling the connection and disconnection between the storage bin 300 and the input pipe 130. Understandably, the dust removal airflow is delivered into the dust removal chamber 110, creating a certain working pressure within it. A pressure sensor 200 is installed inside the dust removal chamber 110 to monitor the pressure in real time and transmit the monitored pressure to the control system. When a leak occurs in the dust removal chamber 110, the pressure inside decreases. When the pressure drops to a certain level, the electrically controlled valve 410 of the control system is triggered and opened, connecting the storage chamber 300 to the input pipe 130. Under the action of airflow, the phosphor in the storage chamber 300 is drawn into the input pipe 130 and enters the dust removal chamber 110 through the input pipe 130.

[0039] In this embodiment, after the phosphor enters the input pipe 130, it flows with the airflow into the dust collection chamber 110. When it passes a leak point in the dust collection chamber 110, some of the phosphor is adsorbed around the leak point, forming a fluorescent accumulation area. By irradiating the outer surface of the dust collector 100 with an ultraviolet lamp, the location of the leak point can be clearly observed, thus guiding subsequent maintenance work. In this embodiment, the dust collector 100 can be various types of bag filters, such as pulse jet bag filters, reverse-air bag filters, and mechanically vibrating bag filters. During implementation, it should be ensured that the dust collection system is in normal operating condition and the fan is operating normally to ensure that the phosphor can circulate sufficiently to mark the leak point.

[0040] This utility model's technical solution uses an input pipe 130 to transport the airflow to be dusted to the dust collection chamber 110 for dust removal. A pressure sensor 200 monitors the pressure inside the dust collection chamber 110 in real time. When a leak occurs in the dust collection chamber 110, the internal pressure decreases. When the pressure drops to a certain value range, the electric control valve 410 is triggered and opened, connecting the storage chamber 300 to the input pipe 130. The fluorescent powder in the storage chamber 300 is drawn into the input pipe 130 and enters the dust collection chamber 110. The fluorescent powder accumulates at the leak point, thus automatically detecting the location of the leak in the dust collection chamber 110. Leak detection can be completed without manual intervention, greatly improving work efficiency and detection accuracy. Furthermore, the pressure sensor 200 also monitors pressure changes inside the dust collection chamber 110 in real time, increasing the automation level of leak detection in the dust collector 100, improving dust removal efficiency, and reducing maintenance costs.

[0041] In one embodiment, the control system further includes a controller 400, which is connected to an electronically controlled valve 410 and a pressure sensor 200. The controller 400 has a first threshold. When the pressure detected by the pressure sensor 200 is less than the first threshold, the controller 400 controls the electronically controlled valve 410 to operate, so that the storage chamber 300 is connected to the input pipe 130, and the phosphor enters the dust removal chamber 110 through the input pipe 130 and accumulates at the leak point.

[0042] In this embodiment, the controller 400 is a programmable logic controller (PLC) with data acquisition, logic judgment, and execution control functions. It is connected to the pressure sensor 200 via an RS485 communication interface, with a sampling frequency of 1 time / second to ensure real-time monitoring of internal pressure changes in the dust collector 100. Simultaneously, the control system is connected to the electrically controlled valve 410 via a 4-20mA analog output interface to achieve precise control of the valve opening.

[0043] In the specific implementation process, it should first be noted that, based on the analysis of a large amount of experimental data, when the pressure value inside the dust removal chamber 110 is less than 20%-30% of the design dust removal pressure of the dust removal chamber 110, it indicates that there may be a leak in the dust removal chamber 110. Understandably, the first threshold is 20%-30% of the design dust removal pressure of the dust removal chamber 110. In this embodiment, the pressure sensor 200 transmits the real-time monitored pressure value to the controller 400. The controller 400 compares this pressure value with the first threshold. When the pressure value is less than the first threshold, the controller 400 controls the electrically controlled valve 410 to open.

[0044] Furthermore, the controller 400 is also provided with a second threshold. When the total amount of phosphor delivered by the electronic control valve 410 reaches the second threshold, the controller 400 controls the electronic control valve 410 to operate, thereby interrupting the connection between the storage chamber 300 and the input pipe 130.

[0045] In this embodiment, the controller 400 also calculates the amount of phosphor used to avoid insufficient phosphor affecting leak detection and excessive phosphor causing waste, thereby improving the level of automation. Specifically, on the one hand, the control system can calculate the phosphor flow rate by setting a flow meter; on the other hand, the control system can also calculate the phosphor flow rate by controlling the valve opening degree and opening time of the solenoid valve 410. In this embodiment, when the total amount of phosphor reaches the second threshold, the controller 400 controls the solenoid valve 410 to close, preventing phosphor from entering the input pipe 130, and then ultraviolet light is used to check the leak location.

[0046] Traditional fluorescent leak detection methods and equipment mostly lack automated control mechanisms, failing to automatically adjust the amount of fluorescent powder added based on the actual operating status of the dust collector 100, easily leading to waste or insufficient addition of fluorescent powder. In specific implementation, the second threshold is the total filtration area of ​​the filter multiplied by a fixed coefficient. In this embodiment, the second threshold is the total filtration area of ​​the filter multiplied by 5 g / m². The controller 400 sends a closing command to the electrically controlled valve 410 to stop the addition of fluorescent powder. For example, for a dust collector 100 with a total filtration area of ​​200 m², the system will automatically close the valve when the amount of fluorescent powder used reaches 1000 g. In practical applications, the fluorescent powder dosage coefficient can be adjusted according to different specifications of bag dust collectors 100. For large industrial dust collectors 100, the coefficient can be set to 5-7 g / m²; for medium-sized dust collectors 100, it can be set to 4-6 g / m²; and for small dust collectors 100, it can be set to 3-5 g / m². The control system supports parameter adjustment, and operators can modify relevant parameters through the control panel to adapt to different operating conditions.

[0047] In one embodiment, the control system further includes a display instrument 420, which is connected to the pressure sensor 200 and the controller 400 respectively. The display instrument is used to display the pressure monitored by the pressure sensor 200 so as to facilitate the observation of the pressure value and can serve the purpose of manual monitoring.

[0048] refer to Figure 2 As shown, in one embodiment, the storage chamber 300 is provided with an anti-caking device, which includes a rotating part 310 and a driving part 320. The rotating part 310 is located inside the storage chamber 300, and the driving part 320 is located outside the storage chamber 300. The driving part 320 is driven to connect with the rotating part 310 and drives the rotating part 310 to rotate, thereby agitating the phosphor in the storage chamber 300.

[0049] In the specific implementation, the storage chamber 300 is a sealed storage tank with an internal anti-caking device to ensure that the phosphor remains dry and fluid. Specifically, in this embodiment, the rotating part 310 is rotatably disposed inside the storage chamber 300 and agitates the phosphor by rotating to prevent phosphor agglomeration. The driving part 320 is fixed to the outside of the storage chamber 300 and drivenly connected to the rotating part 310. The rotating part 310 extends into the storage chamber 300 and is rotatably and sealed to the storage chamber 300. The driving part 320 can be a motor or other power mechanism. The driving part 320 and the rotating part 310 can be connected by gears, belts, or other transmission mechanisms, so that the driving part 320 can smoothly drive the rotating part 310 to rotate.

[0050] In one embodiment, the rotating part 310 includes a auger shaft 311 and auger blades 312. The driving part 320 is driven to the auger shaft 311 and drives the auger shaft 311 to rotate. The auger blades 312 are spirally disposed on the outer peripheral surface of the auger shaft 311. The rotation of the auger shaft 311 drives the phosphor at the bottom of the storage chamber 300 to move to the top of the storage chamber 300.

[0051] In this embodiment, the auger blades 312 are spirally arranged and fixed on the outer circumferential surface of the auger shaft 311. The drive unit 320 drives the auger shaft 311 to rotate, thereby causing the phosphor at the bottom of the storage chamber to be transported to the top of the storage chamber 300 under the action of the auger blades 312. Meanwhile, the phosphor in other parts of the storage chamber 300 is filled to the bottom of the storage chamber 300, thereby agitating the phosphor throughout the storage chamber 300 and preventing clumping.

[0052] Furthermore, the auger blade 312 is also connected to a scraper 313. Multiple scrapers 313 are provided, and the multiple scrapers 313 are spaced apart along the axial direction of the auger shaft 311, and the ends of the scrapers 313 are in contact with the inner wall of the storage chamber 300.

[0053] In practical implementation, to prevent phosphor from adhering to the inner wall of the storage chamber 300, the auger blades 312 are also equipped with scrapers 313. The scrapers 313 extend radially along the auger shaft 311. During the rotation of the auger shaft 311, the scrapers 313 agitate the phosphor, and the ends of the scrapers 313 contact the inner wall of the storage chamber 300, scraping away phosphor from the inner wall during rotation. Furthermore, the multiple scrapers 313 spaced apart can adapt to storage chambers 300 of different heights, ensuring effective agitation of the phosphor.

[0054] In one embodiment, the storage chamber 300 is provided with a moisture-proof layer, which is attached to the inner wall of the storage chamber 300 to prevent the phosphor from getting damp and clumping. The moisture-proof layer is made of nano-alumina reinforced resin-based composite material, which balances light transmittance and ultra-low moisture permeability.

[0055] The storage chamber 300 is connected to a conveying pipe 330. The end of the conveying pipe 330 away from the storage chamber 300 is connected to the input pipe 130. The electrically controlled valve 410 is located on the conveying pipe 330. The conveying pipe 330 connects the storage chamber 300 and the input pipe 130, which facilitates the positional design of the storage chamber 300.

[0056] In one embodiment, the dust collector 100 includes a housing, inside which a tube sheet 140 and a dust collection bag 150 are provided. The tube sheet 140 divides the space inside the housing into a clean air chamber 120 and a dust collection chamber 110. The dust collection bag 150 is disposed in the dust collection chamber 110 and connected to the tube sheet 140. After the dust collection airflow passes through the dust collection bag 150 to remove dust, it forms a purified airflow and flows into the clean air chamber 120.

[0057] In the specific implementation process, the tube sheet 140 is horizontally arranged inside the chamber, dividing the chamber into an upper clean air chamber 120 and a lower dust collection chamber 110. Multiple fixing holes are provided on the tube sheet 140, and the open end of each dust collector bag 150 is fixed to one of these holes. Each dust collector bag 150 is positioned corresponding to a fixing hole and is located within the dust collection chamber 110. When a leak occurs in the dust collector bag 150 or at a connection point, fluorescent powder will accumulate at the leak point, allowing for easy identification of the leak location by ultraviolet light irradiation.

[0058] In one embodiment, the leak detection and dust removal system further includes an output pipe 160, which is connected to the clean air chamber 120. The purified airflow is discharged through the output pipe 160. The output pipe 160 is used to output the purified airflow and to the next process.

[0059] The bottom of the dust collection chamber 110 is provided with a dust discharge outlet 170. In the actual implementation process, larger dust particles will fall directly into the bottom of the dust collection chamber 110, and some fine dust will adhere to the outer surface of the dust collection bag 150 or other dust collection devices. Depending on the type of dust collection bag 150 selected, appropriate vibration or back-blowing methods are used to make the dust fall into the bottom of the dust collection chamber 110 and finally be discharged through the dust discharge outlet 170.

[0060] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the inventive concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A leak detection and dust removal system characterized by, include: The dust collector is equipped with a dust collection chamber, which is connected to an inlet pipe for conveying the airflow to be dusted into the dust collection chamber. A pressure sensor is installed inside the dust collector and is used to monitor the pressure inside the dust collector chamber; A storage compartment for storing phosphor, the storage compartment being connected to the input pipe; as well as The control system includes an electrically controlled valve for controlling the connection and interruption between the storage compartment and the input pipe, and the electrically controlled valve is electrically connected to the pressure sensor.

2. The leak detection and dust removal system of claim 1, wherein, The control system also includes a controller, which is connected to the electronically controlled valve and the pressure sensor respectively. The controller has a first threshold. When the pressure detected by the pressure sensor is less than the first threshold, the controller controls the electronically controlled valve to operate, so that the storage chamber is connected to the input pipe, and the phosphor enters the dust removal chamber through the input pipe and accumulates at the leak point.

3. The leak detection and dust removal system of claim 2, wherein, The controller also has a second threshold. When the total amount of phosphor delivered by the electronically controlled valve reaches the second threshold, the controller controls the electronically controlled valve to operate, thereby interrupting the connection between the storage chamber and the input pipe.

4. The leak detection and dust removal system of claim 2, wherein, The control system also includes a display instrument, which is connected to the pressure sensor and the controller respectively, and is used to display the pressure monitored by the pressure sensor.

5. The leak detection and dust removal system of claim 1, wherein, The storage chamber is equipped with an anti-caking device, which includes a rotating part and a driving part. The rotating part is located inside the storage chamber, and the driving part is located outside the storage chamber. The driving part is driven to rotate the rotating part and stir the phosphor inside the storage chamber.

6. The leak detection and dust removal system of claim 5, wherein, The rotating part includes a auger shaft and auger blades. The driving part is driven to the auger shaft and drives the auger shaft to rotate. The auger blades are spirally arranged on the outer circumferential surface of the auger shaft. The rotation of the auger shaft drives the phosphor at the bottom of the storage chamber to move to the top of the storage chamber.

7. The leak detection and dust removal system of claim 6, wherein, The auger blades are also connected to scrapers. Multiple scrapers are provided and spaced apart along the axial direction of the auger shaft, with the ends of the scrapers contacting the inner wall of the storage chamber.

8. The leak detection and dust removal system of claim 1, wherein, The storage compartment is equipped with a moisture-proof layer, which is attached to the inner wall of the storage compartment; and / or, The storage chamber is connected to a conveying pipe, and one end of the conveying pipe away from the storage chamber is connected to the input pipe. The electrically controlled valve is located on the conveying pipe.

9. The leak detection and dust removal system of claim 1 or 2, wherein, The dust collector includes a housing, inside which is a tube sheet and a dust collection bag. The tube sheet divides the space inside the housing into a clean air chamber and a dust collection chamber. The dust collection bag is located in the dust collection chamber and connected to the tube sheet. The airflow to be dusted passes through the dust collection bag and is then purified to form a clean airflow, which flows into the clean air chamber.

10. The leak detection and dust removal system of claim 9, wherein, The leak detection and dust removal system further includes an output pipe, which is connected to the clean air chamber, and the purified airflow is discharged through the output pipe; and / or The bottom of the dust removal chamber is provided with a dust discharge outlet.

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