Filtering device and dust removal equipment

Abstract

The utility model discloses a filter device and dust removal equipment, the filter device comprises a cabinet, an isolation assembly, a filter bag, a filter element assembly and an air exhaust assembly, and a first chamber, a second chamber and a third chamber are constructed in the cabinet from bottom to top; the isolation assembly comprises a box body arranged in the first cavity and a plurality of baffle plates arranged in the box body, the baffle plates form a zigzag channel in the box body, and the upstream of the channel is communicated with the outside of the cabinet; the sparks pass through the channel and collide with the baffle so as to be decelerated and detained in the box body, and the filter element assembly is prevented from being ignited. The filter bag on one side of the box body can be used for collecting fine particles escaping from the box body; the filter element assembly arranged in the second chamber is used for filtering particles with smaller diameters escaping from the filter bag; the air exhaust assembly comprises a fan with the air suction end communicated with the second cavity, the fan is arranged in the third cavity and used for constructing negative pressure in the first cavity and the second cavity to suck air, and filtered clean air is exhausted out of the cabinet through the third cavity.

Description

Filtration devices and dust removal equipment Technical Field

[0001] This application relates to the field of filtration and dust removal, and particularly to filtration devices and dust removal equipment. Background Technology

[0002] Cartridge dust collectors are a type of dry dust collection system. They work by using filter cartridges inside the cartridge to trap dust particles generated by industrial equipment. The dust particles are adsorbed onto the fiber layer on the surface of the filter cartridge, and clean air is then discharged after purification. Common filter units are typically placed directly inside the dust collection chamber and connected to the extraction port. While this structure is simple, the extraction port is prone to drawing in sparks, which can cause the filter cartridge to catch fire, or even ignite the equipment's electrical circuits, leading to production accidents. Therefore, this simple cartridge dust collector is unsuitable for welding and cutting operations that easily generate sparks. Summary of the Invention

[0003] This application proposes a filtration device and dust removal equipment that can block sparks and prevent the filter element from catching fire.

[0004] This application discloses a filtration device, comprising: a cabinet having a first chamber, a second chamber, and a third chamber sequentially connected from bottom to top; an isolation assembly including a housing disposed in the first chamber and a plurality of baffles disposed in the housing, the baffles having a tortuous channel inside the housing, the upstream end of the channel communicating with the outside of the cabinet; a filter bag disposed in the first chamber and located on one side of the housing, the filter bag communicating with the downstream end of the channel; a filter element assembly disposed in the second chamber; and an air extraction assembly including a fan with its suction end communicating with the second chamber, the fan being disposed in the third chamber, the third chamber also communicating with the outside of the cabinet.

[0005] In some embodiments, the enclosure includes two spaced-apart side walls, one side wall having an inlet and the other side wall having an outlet, the inlet communicating with the outside of the cabinet, the filter bag communicating with the outlet, and the channel being constructed between the inlet and the outlet.

[0006] In some embodiments, multiple baffles are arranged side by side inside the box, with one end of each baffle facing the inlet and the other end facing the outlet; the cross-section of each baffle is serrated or wavy, and the space between two adjacent baffles forms the channel.

[0007] In some embodiments, the housing and / or the baffle are further provided with cooling pipes.

[0008] In some embodiments, the filter assembly includes a plurality of plate filter elements stacked from bottom to top, wherein the filtration levels of the plate filter elements increase sequentially from bottom to top, and the filter assembly further includes an activated carbon filter element disposed on top of the plate filter elements.

[0009] In some embodiments, the filter assembly further includes a cylindrical filter element, one end of which is connected to the first chamber, and the filter assembly further includes an activated carbon filter element disposed outside the cylindrical filter element.

[0010] In some embodiments, a partition is provided between the second chamber and the third chamber, the fan is disposed on the partition, and the partition is also provided with a through hole communicating with the air intake end.

[0011] In some embodiments, the cabinet is further provided with an exhaust port communicating with the third chamber, and the filtration device further includes a wind speed sensor disposed in the exhaust port and a control panel disposed outside the cabinet, the control panel being electrically connected to the fan and the wind speed sensor respectively.

[0012] In some embodiments, a U-shaped air duct is provided outside the cabinet. The upper end of the U-shaped air duct has two air inlets, and the lower end of the U-shaped air duct is connected to the first chamber. The two air inlets of the U-shaped air duct are respectively provided with valves.

[0013] This application also proposes a dust removal device, including the above-described filter device and a frame for mounting the filter device.

[0014] The filtration device and dust removal equipment in this application include a cabinet, an isolation assembly, filter bags, filter element assemblies, and an extraction assembly. The cabinet is internally constructed with a first chamber, a second chamber, and a third chamber from bottom to top. The isolation assembly includes a housing located in the first chamber and multiple baffles located within the housing. The baffles have tortuous channels inside the housing, with the upstream end of the channels connecting to the outside of the cabinet. Sparks passing through the channels will impact the baffles, thus slowing them down and trapping them inside the housing, preventing ignition of the filter element assemblies. Filter bags on one side of the housing can be used to collect fine particles escaping from the housing. The filter element assemblies in the second chamber filter even smaller particles escaping from the filter bags. The extraction assembly includes a fan with its suction end connected to the second chamber. The fan is located in the third chamber and is used to create negative pressure in the first and second chambers to draw in air. The filtered clean air is then discharged through the third chamber to the outside of the cabinet. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the structure of a filtering device in one embodiment of this application;

[0016] Figure 2 is a schematic diagram of the structure of the filter device in another embodiment of this application;

[0017] Figure 3 is a schematic diagram of the structure of the isolation component in one embodiment of this application.

[0018] Label Explanation:

[0019] 1. Cabinet; 11. U-shaped duct; 12. Exhaust port; 2. Isolation assembly; 21. Housing; 22. Baffle; 3. Filter bag; 4. Medium-efficiency filter element; 5. High-efficiency filter element; 6. Activated carbon filter element; 7. Fan.

[0020] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this application, and not all of the embodiments. Based on the embodiments in this application, those skilled in the art can make inventive decisions without making creative contributions.

[0022] All other embodiments obtained under the premise of labor are within the scope of protection of this application.

[0023] It should be noted that all directional indications in the embodiments of this application, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0024] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0025] Furthermore, the use of terms such as "first" and "second" in this application is 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0026] This application proposes a filtration device. Referring to Figures 1 to 3, the filtration device includes: a cabinet 1, which has a first chamber, a second chamber, and a third chamber connected sequentially from bottom to top; an isolation assembly 2, including a housing 21 disposed in the first chamber and a plurality of baffles 22 disposed in the housing 21, the baffles 22 having a tortuous channel inside the housing 21, the upstream of the channel communicating with the outside of the cabinet 1; a filter bag 3 disposed in the first chamber and located on one side of the housing 21, the filter bag 3 communicating with the downstream of the channel; a filter element assembly disposed in the second chamber; and an air extraction assembly including a fan 7 whose suction end communicates with the second chamber, the fan 7 being disposed in the third chamber, the third chamber also communicating with the outside of the cabinet 1.

[0027] In this embodiment, air carrying sparks enters the housing 21. The sparks collide with the baffle 22, slowing them down and trapping them inside the housing 21, preventing the filter assembly from igniting. A filter bag 3 located on one side of the housing 21 collects fine particles escaping from the housing 21. The filter assembly in the second chamber filters even smaller particles escaping from the filter bag 3. A fan 7 located in the third chamber creates negative pressure in the first and second chambers to draw in air from outside the cabinet 1. The filtered clean air is then discharged from the third chamber to the outside of the cabinet 1. The upward flow of air also utilizes gravity to slow down particles, improving filtration efficiency.

[0028] In some embodiments, the housing 21 includes two spaced-apart side walls, one side wall having an inlet and the other side wall having an outlet. The inlet communicates with the outside of the cabinet 1, and the filter bag 3 communicates with the outlet. The channel structure is located between the inlet and the outlet. In this embodiment, multiple baffles 22 can be provided between the two side walls. The baffles 22 are arranged at intervals, with the inlet and outlet facing the surface of the baffles 22 respectively. The space between two adjacent baffles 22 constitutes a section of the channel. Adjacent sections are connected end-to-end (in series), making the channel S-shaped.

[0029] In addition to the S-shaped channel, a wavy or sawtooth channel can also be used. Referring to Figure 3, which shows the structure after the top cover of the housing 21 has been removed, multiple baffles 22 are arranged side-by-side inside the housing 21. One end of each baffle 22 faces the inlet, and the other end faces the outlet. The cross-section of each baffle 22 is sawtooth or wavy, and the space between adjacent baffles 22 forms a channel. In this embodiment, the two ends of the spaced-apart channels connect to the inlet and outlet respectively, and the channels are connected in parallel. The curved channel increases the probability of sparks and dust particles colliding with the baffles 22, achieving a slowing and isolation effect, and preventing sparks from escaping.

[0030] Furthermore, cooling pipes are also provided on the enclosure 21 and / or baffle 22. In this embodiment, the cooling pipes can be metal pipes installed on the inner and outer walls of the enclosure 21, or metal pipes installed on the outer surface of the baffle. Alternatively, holes can be drilled inside the enclosure 21 or baffle 22 to form a water path for cooling. By providing cooling pipes, the isolation component 2 can be cooled, preventing excessively high temperatures inside the cabinet 1 due to the intake of sparks. The aforementioned cooling pipes can be connected to an external circulating pump to cool the isolation component 2 and the inside of the cabinet 1. Alternatively, the circulating pump can be installed inside the cabinet 1, connected to the cooling pipes via a connecting pipe, and a fan can be installed on one side of the connecting pipe to provide air cooling for the coolant flowing from the cooling pipes. An installation chamber can be isolated within the first chamber, where the circulating pump, fan, and connecting pipes can be installed. Alternatively, a section of the connecting pipe can be installed in the third chamber and air-cooled by a fan 7.

[0031] In some embodiments, the filter assembly includes multiple plate-type filter elements stacked from bottom to top, with the filtration levels of the plate-type filter elements increasing sequentially from bottom to top. The filter assembly also includes an activated carbon filter element 6 disposed on top of the plate-type filter elements. In this embodiment, the filter element with the higher filtration level can filter particles with smaller diameters. The plate-type filter elements can be arranged sequentially from bottom to top, with a medium-efficiency filter element 4 and a high-efficiency filter element 5 to improve the air filtration effect. The medium-efficiency filter element 4 can remove particles with a size of 1-5 micrometers. It is suitable for environments requiring high air quality. The high-efficiency filter element 5 can filter out even smaller particles, providing higher cleaning efficiency. It has a high filtration effect on particles larger than 0.3 micrometers. The air filtered by the plate-type filter elements is then filtered by the activated carbon filter element 6. The activated carbon filter element 6 mainly removes organic compounds, odors, chlorine, and other chemical pollutants from water or air through physical adsorption. It can be used in air purifiers to remove volatile organic compounds (VOCs), odors, and some harmful gases. It has a good removal effect on residual chlorine, odors and organic matter; it also has a certain adsorption capacity for some heavy metal ions.

[0032] In addition to a plate-like structure, the filter element assembly described above can also adopt a cylindrical structure. Specifically, the filter element assembly also includes a cylindrical filter element, one end of which is connected to the first chamber. The cylindrical filter element can be arranged in a multi-layered annular nested manner, including multiple layers of filter paper spaced apart from the inside out, with the filtration level of the filter paper decreasing sequentially from the inside out. Air entering the second chamber from the first chamber then enters the center of the cylindrical filter element from the outside in for graded filtration. The activated carbon filter element 6 can be located at the very center of the cylindrical filter element or at the top of the cylindrical filter element to adsorb moisture and harmful gases in the air. The purified air is then drawn into the third chamber by the fan 7.

[0033] Furthermore, the filter bag 3 can be either a columnar filter bag 3 or an accordion-style filter bag 3. The material of the filter bag 3 can be flame-retardant cloth, which can further block sparks escaping from the housing 21, and at the same time prevent sparks from igniting the filter element assembly.

[0034] In some embodiments, a partition is provided between the second chamber and the third chamber, and the fan 7 is mounted on the partition. The partition also has a through hole communicating with the suction end. In this embodiment, the fan 7 can be a centrifugal fan 7. The centrifugal fan 7 has a large suction force and can create a strong negative pressure in the first chamber and the second chamber. The air discharged by the centrifugal fan 7 directly enters the third chamber and can be discharged from the third chamber to the outside of the cabinet 1.

[0035] In some embodiments, the cabinet 1 is further provided with an exhaust port 12 communicating with the third chamber. The filtration device also includes a wind speed sensor disposed in the exhaust port 12 and a control panel disposed outside the cabinet 1. The control panel is electrically connected to the fan 7 and the wind speed sensor, respectively. The wind speed information of the exhaust port 12 can be obtained by setting the wind speed sensor, and the wind speed information can be displayed on the control panel. When the wind speed is not within the preset range, or when the wind speed cannot meet the processing conditions, the speed of the fan 7 can be adjusted through the control panel to adapt to different working conditions.

[0036] In some embodiments, a U-shaped duct 11 is also provided outside the cabinet 1. The upper end of the U-shaped duct 11 has two air inlets, and the lower end of the U-shaped duct 11 communicates with the first chamber. Valves are provided at each of the two air inlets of the U-shaped duct 11. By setting up the U-shaped duct 11, the filter device can be connected and communicated with multiple external processing devices to perform dust extraction operations on these devices. Of course, when only one of the multiple processing devices is in operation, the valves can control the connection between the U-shaped duct 11 and the processing device to ensure that the filter device is only connected to the processing device that is in operation.

[0037] This application also proposes a dust removal device. Referring to Figures 1 to 3, the dust removal device includes the aforementioned filter and a frame for mounting the filter. In this embodiment, the dust removal device can be connected to the dust extraction pipeline of an external laser cutting machine or laser welding machine to extract dust particles generated during processing.

[0038] In this embodiment, the specific working principle of the filtration device and dust removal equipment is as follows: Air carrying sparks enters the housing 21. The sparks strike the baffle 22, slowing them down and trapping them inside the housing 21, preventing the filter element assembly from igniting. A filter bag 3 located on one side of the housing 21 collects fine particles escaping from the housing 21. The filter element assembly in the second chamber filters even smaller particles escaping from the filter bag 3. A fan 7 located in the third chamber creates negative pressure in the first and second chambers to draw in air from outside the cabinet 1. The filtered clean air is finally discharged from the third chamber to the outside of the cabinet 1. The upward flow of air also relies on gravity to slow down particles, improving filtration efficiency.

[0039] The above are only some or preferred embodiments of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A filtration device, characterized in that, include: The server rack has three interconnected chambers, a first chamber, a second chamber, and a third chamber, arranged sequentially from bottom to top. An isolation assembly includes a housing located in the first chamber and multiple baffles within the housing. The baffles have a tortuous channel inside the housing, the upstream end of which communicates with the outside of the server rack. A filter bag is located in the first chamber, situated on one side of the housing, and communicates with the downstream end of the channel. A filter cartridge assembly is located in the second chamber. An air extraction assembly includes a fan with its suction end communicating with the second chamber. The fan is located in the third chamber, which also communicates with the outside of the server rack.

2. The filtration device according to claim 1, characterized in that, The enclosure includes two spaced-apart side walls, one side wall having an inlet and the other side wall having an outlet. The inlet communicates with the outside of the cabinet, the filter bag communicates with the outlet, and the channel structure is located between the inlet and the outlet.

3. The filtration device according to claim 2, characterized in that, Multiple baffles are arranged side by side inside the box. One end of each baffle faces the entrance and the other end faces the exit. The cross-section of each baffle is serrated or wavy, and the space between two adjacent baffles forms the channel.

4. The filtration device according to claim 1, characterized in that, The housing and / or the baffle are also provided with cooling pipes.

5. The filtration device according to claim 1, characterized in that, The filter element assembly includes multiple plate-type filter elements stacked from bottom to top, with the filtration levels of the plate-type filter elements increasing sequentially from bottom to top. The filter element assembly also includes an activated carbon filter element disposed on top of the plate-type filter elements.

6. The filtration device according to claim 1, characterized in that, The filter element assembly further includes a cylindrical filter element, one end of which is connected to the first chamber, and the filter element assembly further includes an activated carbon filter element disposed outside the cylindrical filter element.

7. The filtration device according to claim 1, characterized in that, A partition is provided between the second chamber and the third chamber, and the fan is mounted on the partition. The partition is also provided with a through hole that communicates with the air intake end.

8. The filtration device according to claim 1, characterized in that, The cabinet is also provided with an exhaust port that communicates with the third chamber. The filtration device also includes a wind speed sensor located in the exhaust port and a control panel located outside the cabinet. The control panel is electrically connected to the fan and the wind speed sensor respectively.

9. The filtration device according to claim 1, characterized in that, The cabinet is also equipped with a U-shaped air duct. The upper end of the U-shaped air duct has two air inlets, and the lower end of the U-shaped air duct is connected to the first chamber. The two air inlets of the U-shaped air duct are respectively equipped with valves.

10. A dust removal device, characterized in that, The filter includes any one of claims 1 to 9, and a frame for mounting the filter.

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