Intelligent front-end data acquisition system for boiler and device thereof

Abstract

This invention provides an intelligent front-end data acquisition system for boilers, comprising: a detection module, a data acquisition module, and a monitoring module; the detection module is used to acquire unit temperature data; the data acquisition module is a YS-24D data acquisition box, which is used to acquire data from the detection module. This invention provides an intelligent front-end data acquisition system and device for boilers, wherein the data acquisition module uses the YS-24D data acquisition box to acquire data from the detection module at unit temperature measurement points. The YS-24D data acquisition box is high-performance and highly reliable, with a hardware design employing a 32-bit low-power ARM processor, high integration, few peripheral components, high reliability, fast processing speed, high resolution, and reliable and accurate data. It uses a high-performance, high-precision 24-bit A / D converter, with all 24 channels being independent fully differential input loops, providing high resolution, low drift, and high stability.

Description

Technical Field

[0001] This invention relates to the field of boilers, and more particularly to an intelligent front-end data acquisition system and device for boilers. Background Technology

[0002] A boiler is an energy conversion device. The energy input to a boiler includes the chemical energy of fuel and electrical energy. The boiler outputs steam, high-temperature water, or organic heat carriers with a certain amount of thermal energy.

[0003] The original meaning of "boiler" refers to a water-filled container heated over a fire, while "furnace" refers to a place where fuel is burned. A boiler consists of two main parts: the boiler and the furnace. The hot water or steam produced in a boiler can directly provide the heat energy needed for industrial production and people's lives. It can also be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator. Boilers that provide hot water are called hot water boilers, which are mainly used for domestic purposes, and also have a small number of applications in industrial production. Boilers that produce steam are called steam boilers, often simply referred to as boilers, and are mostly used in thermal power plants, ships, locomotives, and industrial and mining enterprises.

[0004] Due to the harsh environment and high temperature in the boiler area, signal stability and measurement accuracy are reduced, and phenomena such as display jumps and dead pixels occur at the front-end temperature measurement points. The currently used intelligent front-end I / O acquisition boxes are prone to problems, have high maintenance workload and costs, and also bring inconvenience to operation monitoring.

[0005] Therefore, it is necessary to provide an intelligent front-end data acquisition system and device for boilers to solve the above-mentioned technical problems. Summary of the Invention

[0006] This invention provides an intelligent front-end data acquisition system and device for boilers, which solves the problems of current I / O acquisition boxes being prone to problems, requiring large maintenance, incurring high maintenance costs, and causing inconvenience to operation monitoring.

[0007] To solve the above-mentioned technical problems, the present invention provides an intelligent front-end data acquisition system for boilers, comprising: a detection module, a data acquisition module, and a monitoring module;

[0008] The detection module is used to collect unit temperature data;

[0009] The data acquisition module is a YS-24D data acquisition box, which is used to acquire data from the detection module.

[0010] The monitoring module is used to monitor the data from the data acquisition module in real time.

[0011] Preferably, the data acquisition module can also be a DY-24C data acquisition box.

[0012] An apparatus for an intelligent front-end data acquisition system for a boiler, comprising the intelligent front-end data acquisition system for a boiler, and the apparatus for the intelligent front-end data acquisition system for a boiler required during use, characterized in that the data acquisition module includes an acquisition device, a heat dissipation device, two filters and a filter element, the heat dissipation device being disposed on the top of the acquisition device, the two filters being disposed at both ends of the heat dissipation device, and the filter element being disposed inside the heat dissipation device.

[0013] Preferably, the heat dissipation device includes a heat sink, multiple heat dissipation slots, multiple air inlets, a mounting bracket, and multiple fans. The heat sink is disposed on the top of the acquisition device, and the multiple heat dissipation slots and multiple air inlets are all opened inside the heat sink. The mounting bracket is fixedly installed on one end of the heat sink, and the multiple fans are all disposed inside the mounting bracket.

[0014] Preferably, the mounting bracket has a fixing member inside, which is used to limit the distance between the mounting bracket and the filter screen.

[0015] Preferably, the plurality of air inlets are located at both ends of the plurality of heat dissipation slots.

[0016] Preferably, the mounting frame is provided with a rotating device inside, the rotating device including a rotating motor and a rotating frame, the rotating frame being rotatably connected to the inside of the mounting frame, and the rotating motor being fixedly installed at one end of the rotating frame.

[0017] Preferably, the surface of the mounting bracket is provided with a protective box, and the interior of the protective box is provided with a cleaning device.

[0018] Preferably, the cleaning device includes two movable slots, two movable blocks, two toothed plates, two gears, a movable frame, and a cleaning component. The two movable slots are opened inside the protective box, the two movable blocks are slidably connected to the inside of the two movable slots, one side of each of the two toothed plates is fixedly installed on one side of each of the two movable blocks, the two gears mesh with each of the two toothed plates, both ends of the movable frame are fixedly installed on one side of each of the two movable blocks, and the cleaning component is fixedly installed on one side of the movable frame.

[0019] Preferably, the cleaning device further includes two sealing plates, one side of which is fixedly installed on one side of the two movable blocks.

[0020] Compared with related technologies, the intelligent front-end data acquisition system and device for boilers provided by the present invention have the following beneficial effects:

[0021] This invention provides an intelligent front-end data acquisition system and device for boilers. The data acquisition module uses a YS-24D data acquisition box to collect data from the detection module of the unit's temperature measurement points. The YS-24D data acquisition box is high-performance and highly reliable. Its hardware design adopts a 32-bit low-power ARM processor, which has high integration, few peripheral components, high reliability, fast processing speed, high resolution, and reliable and accurate data. It uses a high-performance, high-precision 24-bit A / D converter. All 24 channels are independent fully differential input loops, with high resolution, low drift, and high stability. It is adaptable to most environmental temperature requirements and can adapt to environmental temperatures from -20℃ to 65℃. It adopts the latest technology design, has strong electrical interference resistance, good real-time performance, and can detect, display, and store data in real time. It can display the real-time operating curves of 24 channels. The acquisition box has built-in operation keys and display functions, which can be easily used for on-site debugging. It has good compatibility and supports almost all domestic and foreign RTDs and thermocouples. It is also convenient for maintenance, thereby reducing the cost of use. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of a first embodiment of an intelligent front-end data acquisition system and device for boilers provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the data acquisition device;

[0024] Figure 3 for Figure 2 The diagram shows the structure of the heat dissipation device.

[0025] Figure 4 for Figure 3 The enlarged schematic diagram of part A shown below;

[0026] Figure 5 A schematic diagram of the structure of a second embodiment of an intelligent front-end data acquisition system and device for boilers provided by the present invention;

[0027] Figure 6 for Figure 5 A cross-sectional structural schematic diagram of the mounting bracket shown;

[0028] Figure 7 A schematic diagram of the structure of a third embodiment of an intelligent front-end data acquisition system and device for boilers provided by the present invention;

[0029] Figure 8 for Figure 7 The enlarged schematic diagram of part B is shown.

[0030] The following are the labels in the diagram: 1. Data collection device; 2. Heat dissipation device; 21. Heat sink; 22. Heat dissipation groove; 23. Air inlet; 24. Mounting bracket; 25. Fan; 3. Filter screen; 4. Filter element; 5. Fixing element; 6. Rotating device; 61. Rotating motor; 62. Rotating frame; 7. Protective box; 8. Cleaning device; 81. Moving groove; 82. Moving block; 83. Toothed plate; 84. Gear; 85. Moving frame; 86. Cleaning element; 87. Sealing plate. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] First Embodiment

[0033] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of an intelligent front-end data acquisition system and device for boilers provided by the present invention; Figure 2 This is a schematic diagram of the data acquisition device; Figure 3 for Figure 2 The diagram shows the structure of the heat dissipation device. Figure 4 for Figure 3 The enlarged schematic diagram of part A is shown. An intelligent front-end data acquisition system for boilers includes: a detection module, a data acquisition module, and a monitoring module;

[0034] The detection module is used to collect unit temperature data;

[0035] The data acquisition module is a YS-24D data acquisition box, which is used to acquire data from the detection module.

[0036] The monitoring module is used to monitor the data from the data acquisition module in real time.

[0037] The detection module is used by the DCS system to monitor the data collected by the data acquisition module in real time.

[0038] During unit maintenance, the YS-24D data acquisition box was removed and all temperature measurement points were recorded. The original front-end board was removed, replaced with the data acquisition box, and the signal cable was replaced to ensure stability. After wiring, the corresponding measurement points were located in the DCS system, and the temperature value of each point could be displayed on the screen. This data acquisition box has the following features:

[0039] (1) High performance and high reliability. The hardware design adopts a 32-bit low-power ARM processor, which has high integration, few peripheral components, high reliability, and fast computing speed;

[0040] (2) High resolution and reliable, accurate data. It adopts a high-performance, high-precision 24-bit A / D converter, with all 24 channels being independent fully differential input loops, resulting in high resolution, low drift, and high stability;

[0041] (3) It can adapt to most environmental temperature requirements and can adapt to environmental temperatures from -20℃ to 65℃.

[0042] (4) Designed with the latest technology, it has strong electrical interference resistance;

[0043] (5) Good real-time performance, real-time detection, display and storage, and can display 24 channels of real-time operating curves;

[0044] (6) The data acquisition box has built-in operation keys and display functions, which can be conveniently used for on-site debugging;

[0045] (7) It has good compatibility, supports almost all domestic and foreign type RTDs and thermocouples, and performs floating-point calculation nonlinear correction processing using the ITS-90 international temperature scale reference formula, with a nonlinear processing accuracy of 0.02℃.

[0046] 1.1 Remove all front-end acquisition boxes on site, and mark all signal cables before removing them.

[0047] 1.2 Make a matching bracket at the original front-end acquisition box, hang the new acquisition box, and restore all signal lines in sequence.

[0048] 1.3 Replace the communication cable between the data acquisition box and the DCS cabinet. Modify the communication settings between the data acquisition box and the DCS, and test all temperature points on the engineering station to ensure normal data communication and consistency between the DCS screen and the data acquisition box data.

[0049] The data acquisition module can also be a DY-24C data acquisition box.

[0050] During unit maintenance, the DY-24C (3.5A) was disassembled and all temperature measurement points were recorded. The original front-end board was removed, replaced with a data acquisition box, and the signal cable was replaced to ensure stability. After wiring, the corresponding measurement points were located in the DCS system, and the temperature value of each point could be displayed on the screen. This data acquisition box has the following features:

[0051] (1) Wall-mounted installation can save a lot of signal cables;

[0052] (2) The DYNET (RS-485 / RS-422) fieldbus remote network and Ethernet communication are adopted, and the communication distance reaches 1.2Km without repeaters;

[0053] (3) Design redundant communication, with a maximum communication rate of 2.5Mb / s and a maximum Ethernet communication rate of 100Mb / s;

[0054] (4) Designed with the latest technology, it has strong electrical interference resistance;

[0055] (5) The outer casing is an imported steel chassis with an IP65 protection rating, providing dustproof, waterproof, and antimagnetic protection;

[0056] (6) The data acquisition box has built-in operation keys and display functions, which can be conveniently used for on-site debugging;

[0057] (7) The data acquisition box communicates independently with the digital display at the same time for monitoring important parameters.

[0058] (8) It can adapt to higher environmental temperature requirements, and can adapt to environmental temperatures of -20℃ to 75℃.

[0059] 1.1 Remove all front-end acquisition boxes on site, and mark all signal cables before removing them.

[0060] 1.2 Directly attach the new acquisition box to the original front-end acquisition box and restore all signal lines in sequence.

[0061] 1.3 Replace the communication cable between the data acquisition box and the DCS cabinet, modify the communication settings between the data acquisition box and the DCS, and debug all temperature points on the engineer station to ensure normal data communication and achieve consistency between the DCS screen and the data acquisition box data.

[0062] An apparatus for an intelligent front-end data acquisition system for a boiler, comprising the intelligent front-end data acquisition system for a boiler, and the apparatus for the intelligent front-end data acquisition system for a boiler required during use, characterized in that the data acquisition module comprises an acquisition device 1, a heat dissipation device 2, two filter screens 3, and a filter element 4, wherein the heat dissipation device 2 is disposed on the top of the acquisition device 1, the two filter screens 3 are respectively disposed at both ends of the heat dissipation device 2, and the filter element 4 is disposed inside the heat dissipation device 2.

[0063] The filter screen 3 is used to filter the air entering the mounting frame 24, thereby preventing dust from entering the collection device 1.

[0064] Two filters 3 are fixedly installed at one end of the mounting bracket 24 and one end of the heat sink 21, respectively.

[0065] The acquisition device 1 is the YS-24D data acquisition box in the prior art.

[0066] The filter element 4 is a desiccant used to filter the moisture in the air that is transported into the collection device 1.

[0067] Filter element 4 can also be used for

[0068] The heat dissipation device 2 includes a heat sink 21, multiple heat dissipation slots 22, multiple air inlets 23, a mounting bracket 24, and multiple fans 25. The heat sink 21 is disposed on the top of the data collection device 1. The multiple heat dissipation slots 22 and multiple air inlets 23 are all opened inside the heat sink 21. The mounting bracket 24 is fixedly installed on one end of the heat sink 21. The multiple fans 25 are all disposed inside the mounting bracket 24.

[0069] The bottom of the heat dissipation slot 22 is connected to the inside of the data acquisition device 1, so that after the outside air enters the inside of the heat dissipation slot 22, it can enter the inside of the data acquisition device 1, thereby increasing the heat dissipation effect.

[0070] The mounting bracket 24 is provided with a fixing member 5 inside, which is used to limit the distance between the mounting bracket 24 and the filter screen 3.

[0071] The fastener 5 is a bolt, used to limit the movement between the filter screen 3 and the mounting bracket 24.

[0072] Fastener 5 includes buckles, locks, magnets, etc.

[0073] The multiple air inlets 23 are located at both ends of the multiple heat dissipation slots 22.

[0074] Multiple air inlets 23 are used to allow air to enter and exit the heat dissipation tank 22, thereby circulating the air and dissipating heat from the inside of the collection device 1.

[0075] When the data acquisition device 1 is cooled, the external air is filtered by the filter screen 3 after the fan 25 is turned on. After being filtered by the filter element 4, the air enters the heat sink 21 through multiple air inlets 23, flows through the heat dissipation groove 22 inside the data acquisition device 1, and is discharged through the air inlet 23 at the other end of the heat sink 21. This process cools the inside of the data acquisition device 1, increases the contact area between the heat sink 21 and the air, and improves the heat dissipation effect. At the same time, it filters the dust and moisture in the air entering the data acquisition device 1.

[0076] The working principle of the intelligent front-end data acquisition system and device for boilers provided by this invention is as follows:

[0077] In use, the data from the detection module of the unit's temperature measurement point is collected by the acquisition device 1 and then transmitted to the monitoring module through the communication cable.

[0078] Compared with related technologies, the intelligent front-end data acquisition system and device for boilers provided by the present invention have the following beneficial effects:

[0079] This invention provides an intelligent front-end data acquisition system and device for boilers. The data acquisition module uses a YS-24D data acquisition box to collect data from the detection module of the unit's temperature measurement points. The YS-24D data acquisition box is high-performance and highly reliable. Its hardware design adopts a 32-bit low-power ARM processor, which has high integration, few peripheral components, high reliability, fast processing speed, high resolution, and reliable and accurate data. It uses a high-performance, high-precision 24-bit A / D converter. All 24 channels are independent fully differential input loops, with high resolution, low drift, and high stability. It is adaptable to most environmental temperature requirements and can adapt to environmental temperatures from -20℃ to 65℃. It adopts the latest technology design, has strong electrical interference resistance, good real-time performance, and can detect, display, and store data in real time. It can display the real-time operating curves of 24 channels. The acquisition box has built-in operation keys and display functions, which can be easily used for on-site debugging. It has good compatibility and supports almost all domestic and foreign RTDs and thermocouples. It is also convenient for maintenance, thereby reducing the cost of use.

[0080] Second Embodiment

[0081] Please refer to the following: Figure 5 and Figure 6 Based on the first embodiment of this application, which provides an intelligent front-end data acquisition system and apparatus for boilers, the second embodiment of this application proposes another intelligent front-end data acquisition system and apparatus for boilers. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the separate implementation of the first embodiment.

[0082] Specifically, the second embodiment of this application provides an intelligent front-end data acquisition system and device for a boiler, which differs in that it further includes a rotating device 6. The rotating device 6 is disposed inside the mounting frame 24. The rotating device 6 includes a rotating motor 61 and a rotating frame 62. The rotating frame 62 is rotatably connected to the inside of the mounting frame 24, and the rotating motor 61 is fixedly installed at one end of the rotating frame 62.

[0083] Multiple fans 25 are fixedly installed inside the rotating frame 62. After the rotating motor 61 is started, the rotating frame 62 connected to the multiple fans 25 rotates 180 degrees to clean the filter screen 3 and prevent the filter screen 3 from becoming clogged.

[0084] The working principle of the intelligent front-end data acquisition system and device for boilers provided by this invention is as follows:

[0085] When in use, the rotating motor 61 is started, which drives the rotating frame 62 to rotate 180° to one side and then turns off. At this time, the fan 25 blows air in the opposite direction to the filter screen 3 to clean the filter screen 3.

[0086] After cleaning is completed, the rotating motor 61 is started to reverse, which drives the rotating frame 62 connected to the fan to rotate and reset.

[0087] Compared with related technologies, the intelligent front-end data acquisition system and device for boilers provided by the present invention have the following beneficial effects:

[0088] This invention provides an intelligent front-end data acquisition system and device for boilers. The fan 25 is rotated by the rotating device 6, thereby rotating the fan 25 by 180°. The fan 25 cleans the filter screen 3, thereby preventing the filter screen 3 from becoming clogged.

[0089] Third Embodiment

[0090] Please refer to the following: Figure 7 and Figure 8 Based on the first embodiment of this application, which provides an intelligent front-end data acquisition system and apparatus for boilers, the third embodiment of this application proposes another intelligent front-end data acquisition system and apparatus for boilers. The third embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the separate implementation of the first embodiment.

[0091] Specifically, the third embodiment of this application provides an intelligent front-end data acquisition system and device for a boiler, which differs in that it also includes a protective box 7, which is disposed on the surface of the mounting bracket 24, and a cleaning device 8 is disposed inside the protective box 7.

[0092] Protective boxes 7 are fixedly installed at both ends of the mounting bracket 24, and two movable slots 81 are respectively opened inside the two protective boxes 7.

[0093] The cleaning device 8 includes two movable slots 81, two movable blocks 82, two toothed plates 83, two gears 84, a movable frame 85, and a cleaning component 86. The two movable slots 81 are opened inside the protective box 7. The two movable blocks 82 are slidably connected to the inside of the two movable slots 81. One side of each of the two toothed plates 83 is fixedly installed on one side of each of the two movable blocks 82. The two gears 84 mesh with the two toothed plates 83. Both ends of the movable frame 85 are fixedly installed on one side of each of the two movable blocks 82. The cleaning component 86 is fixedly installed on one side of the movable frame 85.

[0094] Both gears 84 are fixedly installed on the surface of the rotating frame 62 and are located inside the two protective boxes 7 respectively. When the rotating motor 61 drives the rotating frame 62 to rotate to one side, it drives the two gears 84 to rotate to one side, thereby driving the two toothed plates 83 connected to the two moving blocks 82 to move, so that the moving frame 85 drives the cleaning component 86 to move and clean the filter screen 3.

[0095] After gear 84 rotates 180°, the moving frame 85 moves from a position slightly lower than the bottom of filter screen 3 to the top of filter screen 3, or moves from top to bottom to reset.

[0096] The cleaning component 86 is a cleaning brush, which is used to move the cleaning brush when the moving frame 85 moves, so as to clean the filter screen 3.

[0097] The cleaning device 8 also includes two sealing plates 87, one side of which is fixedly installed on one side of the two movable blocks 82.

[0098] The sealing plate 87 is used to seal one side of the moving groove 81, thereby preventing dust from entering the interior of the protective box 7 and protecting the gear 84 and the tooth plate 83.

[0099] The working principle of the intelligent front-end data acquisition system and device for boilers provided by this invention is as follows:

[0100] In use, after starting the rotating motor 61, the rotating frame 62 connected to the two gears 84 is rotated to one side, thereby causing the two toothed plates 83 to move upward. When the two toothed plates 83 move upward, the two moving blocks 82 move inside the two moving slots 81 respectively. At the same time, when the moving blocks 82 move, the moving frame 85 connected to the cleaning component 86 moves, thus moving the surface of the filter screen 3.

[0101] When the rotating motor 61 drives the rotating frame 62 to reverse and reset, it also drives the two gears 84 to reverse and reset, so that the two toothed plates 83 connected to the two moving blocks 82 move inside the two moving slots 81 respectively, while driving the moving frame 85 connected to the cleaning component 86 to move downward and reset.

[0102] Compared with related technologies, the intelligent front-end data acquisition system and device for boilers provided by the present invention have the following beneficial effects:

[0103] This invention provides an intelligent front-end data acquisition system and device for boilers. The system uses a cleaning device 8 in conjunction with a rotating device 6 to clean the filter screen 3, thereby increasing the cleaning effect of the filter screen 3.

[0104] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An intelligent front-end data acquisition system for boilers, characterized in that, include: Detection module, data acquisition module, and monitoring module; The detection module is used to collect unit temperature data; The data acquisition module is a YS-24D data acquisition box, which is used to acquire data from the detection module. The monitoring module is used to monitor the data from the data acquisition module in real time.

2. The intelligent front-end data acquisition system for boilers according to claim 1, characterized in that, The data acquisition module can also be a DY-24C data acquisition box.

3. An apparatus for an intelligent front-end data acquisition system for a boiler, comprising the intelligent front-end data acquisition system for a boiler as described in any one of claims 1-2, wherein the apparatus for the intelligent front-end data acquisition system for a boiler is required during use, characterized in that, The data acquisition module includes an acquisition device, a heat dissipation device, two filters and a filter element. The heat dissipation device is located on the top of the acquisition device, the two filters are located at both ends of the heat dissipation device, and the filter element is located inside the heat dissipation device.

4. The device for an intelligent front-end data acquisition system for a boiler according to claim 3, characterized in that, The heat dissipation device includes a heat sink, multiple heat dissipation slots, multiple air inlets, a mounting bracket, and multiple fans. The heat sink is disposed on the top of the data acquisition device. The multiple heat dissipation slots and multiple air inlets are all opened inside the heat sink. The mounting bracket is fixedly installed on one end of the heat sink, and the multiple fans are all disposed inside the mounting bracket.

5. The device for an intelligent front-end data acquisition system for a boiler according to claim 4, characterized in that, The mounting bracket has a fixing component inside, which is used to limit the distance between the mounting bracket and the filter screen.

6. The device for an intelligent front-end data acquisition system for a boiler according to claim 4, characterized in that, The multiple air inlets are located at both ends of the multiple heat dissipation slots.

7. The device for an intelligent front-end data acquisition system for a boiler according to claim 4, characterized in that, The mounting frame is equipped with a rotating device, which includes a rotating motor and a rotating frame. The rotating frame is rotatably connected to the interior of the mounting frame, and the rotating motor is fixedly installed at one end of the rotating frame.

8. The device for an intelligent front-end data acquisition system for a boiler according to claim 4, characterized in that, The surface of the mounting bracket is provided with a protective box, and the interior of the protective box is provided with a cleaning device.

9. The apparatus for an intelligent front-end data acquisition system for a boiler according to claim 8, characterized in that, The cleaning device includes two movable slots, two movable blocks, two toothed plates, two gears, a movable frame, and a cleaning component. The two movable slots are opened inside the protective box. The two movable blocks are slidably connected to the inside of the two movable slots. One side of each of the two toothed plates is fixedly installed on one side of each of the two movable blocks. The two gears mesh with the two toothed plates respectively. Both ends of the movable frame are fixedly installed on one side of each of the two movable blocks. The cleaning component is fixedly installed on one side of the movable frame.

10. The apparatus for an intelligent front-end data acquisition system for a boiler according to claim 9, characterized in that, The cleaning device also includes two sealing plates, one side of which is fixedly installed on one side of the two movable blocks.

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