A top cover plate leak detection and compression device for a baghouse

Abstract

A kind of top cover plate leak detection compression device for cloth bag dust collector belongs to cloth bag dust collector equipment technical field, including square frame, detection pressure part and buzzer;Four corners of the square frame are provided with chamfer, and its bottom end surface four corners are set on the top end surface of cloth bag dust collector by support;The square frame surrounds cover plate;The buzzer is set on the top end surface of square frame, and its signal input end is connected with the signal output end of CPU;The number of detection pressure part is four, and it is respectively set on four sides of square frame;The present application improves the efficiency of cover plate leak detection and compression, reduces labor intensity.

Description

Technical Field

[0001] This invention relates to a leak detection and tightening device, specifically a device capable of monitoring whether the top cover of a bag filter is leaking air and tightening the cover, belonging to the technical field of bag filter equipment. Background Technology

[0002] Baghouse dust collectors are dry dust filtration devices widely used in flue gas dust removal and purification in industries such as metallurgy, building materials, chemicals, and power. The top of the dust collector housing has several covers to seal the inspection ports and tube sheet area. During operation, the inside of the housing is under negative pressure. If the top covers fail to seal properly due to aging of the sealing strips or deformation, outside air will leak into the housing through the gaps, causing air leakage. Air leakage from the top covers has several adverse effects: firstly, the leaked cold air causes a drop in the temperature of the flue gas inside the dust collector. When the temperature drops below the dew point, condensation and bag clogging are likely to occur, seriously affecting dust removal efficiency and bag lifespan. Secondly, air leakage increases the air volume handled by the dust collector, leading to increased system energy consumption. Thirdly, air leakage may cause uneven local airflow distribution, affecting the dust removal effect. Currently, the industry lacks systematic and specialized tools and devices for detecting air leakage on the top cover of the baghouse dust collector. In actual production, operators mainly rely on manual sensory methods to check for air leakage: one is by listening, approaching the top cover of the dust collector while it is running, and identifying any abnormal air leakage by sound. The two methods are: first, sound; and second, touch, placing the palm close to the contact surface of the cover plate to feel for airflow leakage or inhalation. These methods have several drawbacks: First, they rely on human senses, resulting in low accuracy and a high rate of missed detections; second, when the ambient noise or flue gas temperature is high, these methods are difficult to implement effectively, causing great inconvenience to workers; third, the leak detection process requires workers to frequently bend over and climb to the top of the container to check each leak individually, resulting in high labor intensity and low work efficiency; finally, when a leak is found due to cover plate deformation or other reasons causing poor sealing, the operating personnel cannot handle it independently. Temporary solutions often require contacting maintenance personnel with tools to tighten the cover plate, further extending the fault response time and increasing labor costs. In summary, existing leak detection solutions for the top cover plate of baghouse dust collectors suffer from technical problems such as low accuracy, low efficiency, low personnel utilization, and high workload. Therefore, there is an urgent need to design a dedicated integrated leak detection and emergency handling device that can quickly and accurately locate the leak point and perform emergency tightening of the deformed cover plate after a leak is detected, thereby improving leak detection efficiency, reducing worker labor intensity, and saving labor costs. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a leak detection and pressing device for the top cover plate of a bag filter dust collector. It can reduce the labor intensity of workers, improve leak detection efficiency, and promptly press the leaking part of the cover plate.

[0004] The problem described in this invention is solved by the following technical solution: A leak detection and clamping device for the top cover plate of a bag filter dust collector includes a square frame, a pressure detection section, and a buzzer. The square frame has chamfered corners at all four corners, and its bottom corners are mounted on the top surface of the bag filter dust collector via brackets. The square frame surrounds the cover plate. The buzzer is mounted on the top surface of the square frame, and its signal input terminal is connected to the signal output terminal of a CPU. The number of pressure detection sections is four, and they are respectively located on the four sides of the square frame.

[0005] The aforementioned leak detection and pressing device for the top cover plate of a bag filter dust collector includes a pressing mechanism and a leak detection mechanism in the pressure detection part; the pressing mechanism is located on the top surface of the side of the square frame, and the leak detection mechanism is located on the bottom surface of the side wall of the square frame.

[0006] The aforementioned leak detection and clamping device for the top cover plate of a bag filter dust collector includes a clamping mechanism comprising multiple clamping components, each of which is disposed on the top surface of a square frame side. The top surface of the square frame side has a vertical strip-shaped through hole along its side length, and the inner wall of the vertical strip-shaped through hole has a groove along its length. Each clamping component includes a slider, a pressure plate, a pressure block, a screw, and a nut. The slider is slidably disposed on the groove in the inner wall of the vertical strip-shaped through hole on the side of the square frame via sliding strips on both sides. A screw is disposed on the top surface of the slider. A through hole is disposed in the center of the pressure plate, and the screw passes through the central through hole of the pressure plate. The nut is disposed on the screw, and the bottom end of the nut presses against the top surface of the pressure plate. Two pressure blocks are disposed at opposite ends of the bottom surface of the pressure plate, and the two pressure blocks press against the top surfaces of two adjacent cover plates.

[0007] The above-mentioned leak detection and clamping device for the top cover plate of a bag filter dust collector includes a leak detection mechanism comprising two leak detection components, which are arranged on both sides of the bottom end face of the side of the square frame along the width direction of the vertical strip-shaped through hole on the side of the square frame. The two leak detection components are respectively located on both sides of the vertical strip-shaped through hole on the side of the square frame.

[0008] The aforementioned leak detection and clamping device for the top cover plate of a bag filter dust collector includes a vertical plate, a flap, and an electronic tilt switch. Two vertical plates are positioned on either side of the bottom face of the square frame, perpendicular to the length of the strip-shaped through-hole. A round rod is positioned between the two vertical plates. A circular through-hole is provided at the top of the flap along its length, and the round rod passes through this hole. The electronic tilt switch is located at the bottom of the flap, and its signal output terminal is connected to the signal input terminal of the CPU.

[0009] This invention uses a pressing mechanism to press the cover plate tightly, preventing air leakage due to insufficient pressing; a leak detection mechanism detects a leaking cover plate, and a buzzer alerts staff that the leaking cover plate needs to be inspected and repaired. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention in use. Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from a downward angle; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention at an elevation angle.

[0011] The list of labels in the diagram is as follows: 1. Cover plate, 2. Buzzer, 3. Slider, 4. Pressure plate, 5. Pressure block, 6. Screw, 7. Nut, 8. Vertical plate, 9. Flip plate, 10. Electronic tilt switch, 11. Square frame. Detailed Implementation

[0012] See Figure 1 , 2 and Figure 3 The present invention includes a square frame 11, a pressure detection part, and a buzzer 2. Multiple leak detection and clamping devices are arranged along the diagonal direction of the cover plate, meaning that each leak detection and clamping device is spaced apart along the side length of the cover plate. Each leak detection and clamping device can detect and clamp leaks on eight surfaces: the four sides of the cover plate it surrounds and the four sides facing those four sides. The square frame 11 has chamfered corners at all four corners, and its bottom corners are mounted on the top surface of the bag filter via brackets. The reason for the chamfered corners of the square frame 11 is... This is to avoid conflict between the corners of the two square frames 11 at the diagonal positions, ensuring that the two diagonal frames 11 can be installed smoothly; the square frame 11 surrounds the cover plate 1; the buzzer 2 is set on the top surface of the square frame 11, and its signal input terminal is connected to the signal output terminal of the CPU; when air leakage is detected, the buzzer 2 sounds an alarm to remind the staff that there is air leakage; there are four pressure detection parts, which are respectively set on the four sides of the square frame 11; a set of pressure detection parts can detect and tighten the air leakage of the side wall closest to the cover plate on both sides.

[0013] The pressure testing section includes a pressing mechanism and a leak detection mechanism; the pressing mechanism is located on the top surface of the side of the square frame 11, and the leak detection mechanism is located on the bottom surface of the side wall of the square frame 11; the pressing mechanism is used to press the cover plate, and the leak detection mechanism is used to detect the side leakage of the cover plate that is closest to it.

[0014] The clamping mechanism includes multiple clamping components, each of which is disposed on the top surface of the side of the square frame 11. A vertical strip-shaped through hole is provided along the side length of the top surface of the square frame 11, and a groove is provided along the length of the inner wall of the vertical strip-shaped through hole. The clamping components include a slider 3, a pressure plate 4, a pressure block 5, a screw 6, and a nut 7. The slider 3 is slidably disposed on the groove on the inner wall of the vertical strip-shaped through hole of the side of the square frame 11 via sliding strips on both sides. The slider 3 slides within the vertical strip-shaped through hole of the square frame 11, thereby adjusting the position of the pressure block 5. The pressure plate 4 is pressed onto the designated position at the top of the cover plate; the top surface of the slider 3 is provided with a screw 6; the center of the pressure plate 4 is provided with a through hole, and the screw 6 passes through the center through hole of the pressure plate 4; the nut 7 is provided on the screw 6, and the bottom end of the nut 7 touches the top surface of the pressure plate 4; by tightening the nut 7, the pressure plate 4 can be pressed, thereby pressing the pressure blocks on both sides, so that the pressure blocks touch the top surface of the cover plate; there are two pressure blocks 5, and they are respectively provided at both ends of the bottom surface of the pressure plate 4, and the two pressure blocks 5 respectively touch the top surfaces of the two adjacent cover plates 1.

[0015] The leak detection mechanism includes two leak detection components, which are arranged on both sides of the bottom surface of the side of the square frame 11 along the width direction of the strip-shaped through hole. The two leak detection components are located on both sides of the side of the square frame 11 along the vertical direction of the strip-shaped through hole. The leak detection components perform leak detection on the nearest edge of the cover plate separately.

[0016] The leak detection component includes a vertical plate 8, a flip plate 9, and an electronic tilt switch 10. There are two vertical plates 8, each positioned on either side of the bottom face of the square frame 11 along the length of the strip-shaped through-hole. A round rod is positioned between the two vertical plates 8. A circular through-hole is provided at the top of the flip plate 9 along its length, and the round rod passes through this hole. The cooperation between the flip plate 9 and the round rod allows the flip plate 9 to flip under the influence of airflow. The electronic tilt switch 10 is located at the bottom of the flip plate 9, and its signal output is connected to the signal input of the CPU. The electronic tilt switch 10 is used to detect the tilt of the flip plate 9.

[0017] The CPU module used in this invention is model 87C196KC.

[0018] Operating principle: In the initial state, each slider 3 moves to the required position, and then the nut 7 is tightened so that the pressure block 5 presses tightly against the top surface of the cover plate. If air leakage occurs at a certain point on the cover plate, because the inside of the bag filter is under negative pressure, the airflow will rush inward towards the leakage point. This will cause the flap 9 to tilt. The electronic tilt switch can monitor the tilt state of the flap in real time. If the flap 9 remains tilted for more than the set time, it indicates that there is air leakage in the cover plate surrounded by the square frame 11 or the four covers around this cover plate, and the buzzer will sound an alarm. The staff goes to the square frame 11 where the alarm buzzer is located. At position 11, traditional methods such as feeling by hand and observing the movement of paper strips are used to inspect the four sides of the cover plate surrounded by the square frame 11 and the edges of the four nearest cover plates. After finding the leak, the corresponding slider 3 is moved to the position of the pressure block 5, so that the pressure block 5 is moved to the leak point. Then, the nut is tightened to press it down and make it cover tightly to prevent air leakage. If air leakage is still found after pressing, it means that it is not a problem of cover plate deformation, but a problem of aging of the sealing strip. Therefore, the cover plate is directly disassembled and the sealing strip is replaced. Then the cover plate is reinstalled and each pressure block 5 is pressed into the corresponding position of the cover plate. At this point, the cover plate air leakage detection and repair work is completed.

Claims

1. A leak detection and clamping device for the top cover plate of a bag filter dust collector, characterized in that: It includes a square frame (11), a pressure detection section and a buzzer (2); the four corners of the square frame (11) are all chamfered, and the four corners of its bottom surface are all set on the top surface of the bag filter through brackets; the square frame (11) surrounds the cover plate (1); the buzzer (2) is set on the top surface of the square frame (11), and its signal input end is connected to the signal output end of the CPU; the number of pressure detection sections is four, and they are respectively set on the four sides of the square frame (11).

2. The leak detection and clamping device for the top cover plate of a bag filter according to claim 1, characterized in that: The pressure testing part includes a pressing mechanism and a leak detection mechanism; the pressing mechanism is located on the top surface of the side of the square frame (11), and the leak detection mechanism is located on the bottom surface of the side wall of the square frame (11).

3. The leak detection and clamping device for the top cover plate of a bag filter according to claim 2, characterized in that: The clamping mechanism includes multiple clamping components, each of which is located on the top surface of the side of the square frame (11). The top surface of the side of the square frame (11) has a vertical strip-shaped through hole along its side length, and the inner wall of the vertical strip-shaped through hole has a sliding groove along its length. The clamping components include a slider (3), a pressure plate (4), a pressure block (5), a screw (6), and a nut (7). The slider (3) is slidably located on the vertical strip-shaped through hole on the side of the square frame (11) via sliding strips on both sides. The sliding groove on the inner wall of the through hole; the top surface of the slider (3) is provided with a screw (6); the center of the pressure plate (4) is provided with a through hole, and the screw (6) passes through the center through hole of the pressure plate (4); the nut (7) is provided on the screw (6), and the bottom end of the nut (7) touches the top surface of the pressure plate (4); there are two pressure blocks (5), and they are respectively provided at both ends of the bottom surface of the pressure plate (4), and the two pressure blocks (5) respectively touch the top surfaces of the two adjacent cover plates (1).

4. The leak detection and clamping device for the top cover plate of a bag filter according to claim 2, characterized in that: The leak detection mechanism includes two leak detection components, which are arranged on both sides of the bottom surface of the side of the square frame (11) along the width direction of the vertical strip-shaped through hole on the side of the square frame (11). The two leak detection components are located on both sides of the vertical strip-shaped through hole on the side of the square frame (11).

5. The leak detection and clamping device for the top cover plate of a bag filter according to claim 4, characterized in that: The leak detection components include a vertical plate (8), a flip plate (9), and an electronic tilt switch (10); there are two vertical plates (8), which are respectively arranged on both sides of the bottom surface of the side of the square frame (11) along the length direction of the strip-shaped through hole; a round rod is arranged between the two vertical plates (8); a circular through hole is arranged at the top of the flip plate (9) along its length direction, and the round rod passes through the through hole at the top of the flip plate (9); the electronic tilt switch (10) is arranged at the bottom of the flip plate (9), and the signal output terminal of the electronic tilt switch (10) is connected to the signal input terminal of the CPU.

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