Air filter device for gas analyzers

Abstract

The utility model discloses an air filtering device for gas analyzer belongs to air filtering technical field, including filter box shell, the inside of filter box shell is provided with connecting plate, and the side of connecting plate is fixed with a plurality of filter board that is equidistant distribution, is set up with a plurality of corresponding slot b of filter board on the side of filter box shell, and the one side of filter box shell is provided with the seal and adjusts the subassembly, and the outside plate of filter box shell is fixed with the outer box that covers in the outside of slot b, and the inside of outer box is provided with cleaning assembly, the utility model discloses the cleaning assembly of setting up in the inside of outer box carries out the synchronous blowing clean cleaning to a plurality of filter board, effectively improves the cleaning efficiency of a plurality of filter board, saves the operation of taking out the cleaning of filter board simultaneously, avoids the dismounting of filter board, effectively improves the cleaning efficiency of filter board, greatly reduces the cleaning operation workload, and the slot b is closed through the seal and adjusts the subassembly and sets up, avoids the dust impurity in the inside of outer box to enter the inside of filter box shell.

Description

Technical Field

[0001] This utility model relates to the field of air filtration technology, and in particular to an air filtration device for a gas analyzer. Background Technology

[0002] Gas analyzers are process analysis instruments used to measure the composition of gases. In many production processes, especially those involving chemical reactions, automatic control based solely on physical parameters such as temperature, pressure, and flow rate is often insufficient. In such cases, gas analyzers are needed to determine the content of various components in the gases generated by the reaction. During the determination of gas component content using a gas analyzer, an air filter device needs to be installed at the air inlet to filter out various impurities inside the gas, preventing impurities from entering the gas analyzer and interfering with its operation.

[0003] For example, Chinese Patent Publication No. CN220671368U discloses an air filtration device for a gas analyzer, including a filter housing. A rectangular groove is formed at the center of the top of the filter housing, and an installation groove is formed on the inner side of the rectangular groove. A sealing plate is provided on the inner side of the rectangular groove. A rotating shaft is rotatably connected to the center of the inner cavity of the sealing plate through a bearing. Fixed plates are bolted to both sides of the inner cavity of the sealing plate. Sliding rods are bolted to the top and bottom of both sides of the fixed plates. Springs are sleeved on the surface of the sliding rods. This utility model, by setting a rotating handle to rotate, drives the rotating shaft to rotate and pull the pull rope, the moving plate and the insert plate. With the help of the spring assembly and the installation groove, the filter device can be quickly inspected and repaired, improving the replacement efficiency of the filter device.

[0004] Although the above application allows for relatively convenient removal, inspection, and cleaning of the filter plate, it still requires removing the filter components from the equipment for cleaning and maintenance. This necessitates repeated disassembly and assembly, and the search for tools to assist in cleaning the filter components. The operation remains cumbersome and inconvenient, increasing the cleaning burden on staff.

[0005] Therefore, it is necessary to provide an air filtration device for a gas analyzer to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to provide an air filtration device for a gas analyzer to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following solution to the aforementioned technical problems: An air filtration device for a gas analyzer includes a filter housing. An inlet pipe and an outlet pipe are respectively connected to both ends of the filter housing. A connecting plate is provided inside the filter housing. Multiple filter plates, evenly distributed, are fixed on the side of the connecting plate. The mesh size of the multiple filter plates gradually decreases from left to right. Multiple slots b corresponding to the filter plates are opened on the side of the filter housing. A sealing and adjusting component for opening and closing the slots b is provided on one side of the filter housing. An external box covering the slots b is fixed on the outer side plate of the filter housing. A cleaning component for cleaning the filter plates is provided inside the external box.

[0008] As a further embodiment of this utility model, the cleaning component includes an internal plate disposed inside the external box. Multiple cleaning plates that are staggered with the filter plate are fixed on the side of the internal plate. Ventilation chambers that communicate with each other are opened inside the internal plate and the cleaning plates. Multiple air blowing holes that are equidistantly distributed are opened on the side of the cleaning plates. An air supply pipe that communicates with the ventilation chamber is connected to the internal plate.

[0009] As a further embodiment of this utility model, the sealing and conditioning assembly includes a sealing plate that is fitted to the outer wall of the filter box shell, a rubber pad is fitted and fixed on the side of the sealing plate, and a plurality of slots a corresponding to slot b are opened on the side of the sealing plate.

[0010] As a further embodiment of this utility model, a connecting rod is fixed to one end of the sealing plate, and a lifting rod is fixed to the end of the connecting rod away from the sealing plate.

[0011] As a further embodiment of this utility model, a pull rod that slides through the side wall of the filter box is fixed on the side of the connecting plate, and an end plate is fixed on the end of the pull rod away from the connecting plate.

[0012] As a further embodiment of this utility model, a groove adapted to slide with the pull rod is provided on the side of the filter box shell, and a rubber sleeve is fitted and fixed inside the groove.

[0013] As a further embodiment of this utility model, an outlet is provided at the bottom of the external box, a cover plate is hinged inside the outlet, and a handle is fixed on the outer side wall of the cover plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When the filter plates need to be cleaned, push the connecting plate to move. The connecting plate drives multiple filter plates to move synchronously through slot b and insert them into the outer box. The cleaning components set inside the outer box simultaneously blow and clean the multiple filter plates, which effectively improves the cleaning efficiency of multiple filter plates. At the same time, it eliminates the need to remove the filter plates for cleaning, avoids the disassembly and assembly of the filter plates, effectively improves the cleaning efficiency of the filter plates, greatly reduces the workload of cleaning operations, and saves manpower.

[0016] 2. After cleaning the filter plate, pull the connecting plate in the opposite direction to move the filter plate back into the filter housing for operation. The sealing and regulating components are used to seal the slot b, thereby preventing dust and impurities from the external box from entering the filter housing and preventing gas from leaking out of the filter housing through the slot b. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0019] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0020] Figure 3 This is a partial structural diagram of the discharge port of this utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the overall structure of this utility model;

[0022] Figure 5 This is a cross-sectional view of the cleaning component of this utility model;

[0023] Figure 6 This is a schematic diagram of the sealing and adjustment component structure of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Cleaning assembly; 101. Cleaning plate; 102. Ventilation chamber; 103. Air blowing hole; 104. Air supply pipe; 105. Internal plate; 2. Sealing and adjusting assembly; 201. Sealing plate; 202. Slot a; 203. Connecting rod; 204. Lifting rod; 3. Filter box shell; 4. Air inlet pipe; 5. Air outlet pipe; 6. External box; 7. Pull rod; 8. Rubber sleeve; 9. Discharge port; 10. Cover plate; 11. Filter plate; 12. Connecting plate; 13. Slot b. Detailed Implementation

[0026] The present invention will be further described below with reference to the embodiments.

[0027] Please see Figure 1-6 This utility model provides an air filtration device for a gas analyzer, including a filter housing 3. An inlet pipe 4 and an outlet pipe 5 are connected to both ends of the filter housing 3. A connecting plate 12 is provided inside the filter housing 3. Multiple filter plates 11, evenly distributed, are fixed on the side of the connecting plate 12. The mesh size of the filter plates 11 gradually decreases from left to right. Multiple slots b13 corresponding to the filter plates 11 are opened on the side of the filter housing 3. A sealing and adjusting component 2 for opening and closing the slots b13 is provided on one side of the filter housing 3. An external box 6, covering the slots b13, is fixed on the outer side plate of the filter housing 3. A cleaning component 1 for cleaning the filter plates 11 is provided inside the external box 6. The gas to be filtered and purified is transported into the filter housing 3 through the inlet pipe 4 and undergoes multi-stage filtration and purification by the multiple filter plates 11 inside the filter housing 3, thereby achieving thorough filtration and purification. When the filter plates 11 are used for a long time, the filter plates 11... When filter plates 11 accumulate a lot of dirt and impurities and need to be cleaned, the connecting plate 12 is pushed to move, thereby driving multiple filter plates 11 to move synchronously through slots b13 and insert them into the outer box 6. The cleaning component 1 set inside the outer box 6 simultaneously blows and cleans the multiple filter plates 11, effectively improving the cleaning efficiency of multiple filter plates 11. At the same time, it eliminates the need to remove the filter plates 11 for cleaning, avoiding the disassembly and assembly of the filter plates 11, effectively improving the cleaning efficiency of the filter plates 11, greatly reducing the workload of cleaning operations, and saving manpower. After the filter plates 11 are cleaned, the connecting plate 12 is pulled in the opposite direction, so that the filter plates 11 are moved back into the filter box shell 3 for use. The sealing component 2 is set to seal the slots b13, thereby preventing dust and impurities inside the outer box 6 from entering the filter box shell 3, and also preventing gas inside the filter box shell 3 from leaking through the slots b13.

[0028] Further as Figure 2 , Figure 4 and Figure 5As shown, it is worth noting that the cleaning component 1 includes an internal plate 105 disposed inside the external housing 6. Multiple cleaning plates 101, staggered from the filter plate 11, are fixed to the side of the internal plate 105. Both the internal plate 105 and the cleaning plates 101 have interconnected ventilation chambers 102. Multiple equidistant air holes 103 are provided on the side of the cleaning plates 101. An air supply pipe 104, communicating with the ventilation chambers 102, is connected to the internal plate 105. When the filter plate 11 has been used for a long time and accumulates a large amount of dirt and impurities, requiring cleaning, the connecting plate 12 is moved by pushing it, thereby connecting... Plate 12 drives multiple filter plates 11 to move synchronously through slot b13 and insert into the interior of the external box 6. The air supply pipe 104 is connected to an external air pump, and air with a certain air pressure is delivered to the ventilation chamber 102 through the air supply pipe 104. The airflow is then blown evenly and finely onto both sides of the filter plates 11 through the air blowing holes 103 on the multiple cleaning plates 101, thereby cleaning the multiple filter plates 11 simultaneously. This effectively improves the cleaning efficiency of the multiple filter plates 11, and eliminates the need to remove the filter plates 11 for cleaning. This avoids the disassembly and assembly of the filter plates 11, effectively improves the cleaning efficiency of the filter plates 11, greatly reduces the workload of cleaning operations, and saves manpower.

[0029] Further as Figure 2 , Figure 4 and Figure 6 As shown, it is worth noting that the sealing and conditioning assembly 2 includes a sealing plate 201 that is fitted to the outer wall of the filter housing 3. A rubber pad is fixed to the side of the sealing plate 201, and multiple slots a202 corresponding to slots b13 are opened on the side of the sealing plate 201. In operation, by pulling the sealing plate 201, slots a202 and slots b13 are aligned, thereby opening slot b13 and allowing the filter plate 11 to be inserted into the outer box 6 for cleaning through slots b13. When the filter plate 11 moves back into the filter housing 3, by pulling the sealing plate 201 in the opposite direction, slots a202 and slots b13 are completely misaligned, thereby sealing slot b13 with the sealing plate 201. This prevents dust and impurities inside the outer box 6 from entering the filter housing 3 and also prevents gas inside the filter housing 3 from leaking through slots b13.

[0030] Further as Figure 6 As shown, it is worth noting that a connecting rod 203 is fixed to one end of the sealing plate 201, and a lifting rod 204 is fixed to the end of the connecting rod 203 away from the sealing plate 201. In actual operation, the sealing plate 201 is moved and adjusted by pulling the lifting rod 204, which is convenient for operation.

[0031] This solution has the following working process: The gas to be filtered and purified is transported into the filter housing 3 through the air inlet pipe 4, and undergoes multi-stage filtration and purification through multiple filter plates 11 inside the filter housing 3. When the filter plates 11 need to be cleaned, the closing plate 201 is pulled to make the slot a202 and slot b13 overlap, thereby opening the slot b13. By pushing the connecting plate 12 to move, the connecting plate 12 drives the multiple filter plates 11 to move synchronously through the slot b13 and insert them into the interior of the external box 6. The air with a certain pressure is transported to the ventilation chamber 102 through the air delivery pipe 104. Inside, the airflow is evenly and finely blown out onto both sides of the filter plate 11 through the air holes 103 on the multiple cleaning plates 101, thereby simultaneously cleaning the multiple filter plates 11 and effectively improving the cleaning efficiency of the multiple filter plates 11. After the filter plates 11 are cleaned, the filter plates 11 are moved back into the filter box shell 3 for use by pulling the connecting plate 12 in the opposite direction. After the filter plates 11 are moved back into the filter box shell 3, the sealing plate 201 is pulled in the opposite direction to completely misalign the slot a202 and the slot b13, thereby sealing the slot b13 by the sealing plate 201.

[0032] Further as Figure 4 As shown, it is worth noting that a pull rod 7 is fixed on the side of the connecting plate 12, which slides through the side wall of the filter box shell 3. An end plate is fixed on the end of the pull rod 7 away from the connecting plate 12. In actual operation, the pull rod 7 can be used to easily pull the connecting plate 12 and the filter plate 11 to move, which is convenient for operation.

[0033] Further as Figure 1 As shown, it is worth noting that the side of the filter box shell 3 is provided with a groove that is adapted to slide with the pull rod 7, and a rubber sleeve 8 is fitted and fixed inside the groove.

[0034] Further as Figure 3 As shown, it is worth noting that an outlet 9 is provided at the bottom of the outer box 6, and a cover plate 10 is hinged inside the outlet 9. A handle is fixed on the outer side wall of the cover plate 10. When cleaning the filter plate 11, the impurities inside the outer box 6 can be discharged in time through the outlet 9 by opening the cover plate 10.

[0035] In summary: When the filter plates 11 need to be cleaned, the connecting plate 12 is pushed to move, thereby causing multiple filter plates 11 to move synchronously through the slot b13 and insert into the outer box 6. The cleaning component 1 inside the outer box 6 then performs synchronous blowing and cleaning on the multiple filter plates 11, effectively improving the cleaning efficiency of the multiple filter plates 11. At the same time, it eliminates the need to remove the filter plates 11 for cleaning, avoiding the disassembly and assembly of the filter plates 11, effectively improving the cleaning efficiency of the filter plates 11, greatly reducing the workload of cleaning operations, and saving manpower. After the filter plates 11 are cleaned, the connecting plate 12 is pulled in the opposite direction, allowing the filter plates 11 to move back into the filter housing 3 for use. The sealing component 2 is used to seal the slot b13, thereby preventing dust and impurities inside the outer box 6 from entering the filter housing 3.

Claims

1. An air filtration device for a gas analyzer, comprising a filter housing, characterized in that, The filter housing has an inlet pipe and an outlet pipe connected to both ends. A connecting plate is provided inside the filter housing. Multiple filter plates are fixed on the side of the connecting plate at equal intervals. The mesh size of the multiple filter plates gradually decreases from left to right. Multiple slots b corresponding to the filter plates are opened on the side of the filter housing. A sealing and adjusting component for opening and closing the slots b is provided on one side of the filter housing. An external box covering the slots b is fixed on the outer side plate of the filter housing. A cleaning component for cleaning the filter plates is provided inside the external box.

2. The air filtration device for a gas analyzer according to claim 1, characterized in that, The cleaning assembly includes an internal plate disposed inside an external box. Multiple cleaning plates, which are staggered with the filter plate, are fixed on the side of the internal plate. Both the internal plate and the cleaning plates have interconnected ventilation chambers. Multiple air blowing holes are equidistantly distributed on the side of the cleaning plates. An air supply pipe communicating with the ventilation chambers is connected to the internal plate.

3. The air filtration device for a gas analyzer according to claim 1, characterized in that, The sealing and conditioning assembly includes a sealing plate that is fitted to the outer wall of the filter box shell. A rubber pad is fixedly attached to the side of the sealing plate, and multiple slots a corresponding to slot b are opened on the side of the sealing plate.

4. The air filtration device for a gas analyzer according to claim 3, characterized in that, A connecting rod is fixed to one end of the sealing plate, and a lifting rod is fixed to the end of the connecting rod away from the sealing plate.

5. The air filtration device for a gas analyzer according to claim 1, characterized in that, A pull rod that slides through the side wall of the filter box is fixed on the side of the connecting plate, and an end plate is fixed on the end of the pull rod away from the connecting plate.

6. The air filtration device for a gas analyzer according to claim 5, characterized in that, The side of the filter box shell has a groove that is adapted to the sliding of the pull rod, and a rubber sleeve is fitted and fixed inside the groove.

7. The air filtration device for a gas analyzer according to claim 1, characterized in that, The bottom of the external box is provided with an outlet, and a cover plate is hinged inside the outlet. A handle is fixed on the outer side wall of the cover plate.

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