A modular filter, a filtration device, and a method for assembling the filtration device.

Abstract

This invention discloses a modular filter, a filtration device, and a method for assembling the filtration device. The modular filter includes a top cover, a filter assembly, an assembly base, and a bottom shell. The filter assembly has a recessed air inlet channel. The assembly base includes an assembly cover, which includes a base shell and a partition frame. The base shell has a receiving space, a first inlet / outlet, a second inlet / outlet, a first mounting port for the filter assembly to pass through when assembling and disassembling the filter assembly, and a second mounting port opposite to the first mounting port. The first inlet / outlet, the second inlet / outlet, the first mounting port, and the second mounting port are all connected to the receiving space. The partition frame is installed within the receiving space. The bottom shell is installed on the second mounting port and has a receiving cavity. One end of the filter assembly is installed on the partition frame, and the other end passes through the second mounting port and is located in the receiving cavity. The air inlet channel is connected to the first inlet / outlet. The top cover is installed on the first mounting port. Gas in the air inlet channel can be filtered by the filter assembly and discharged through the second inlet / outlet.

Description

Technical Field

[0001] This invention belongs to the field of filter technology, and particularly relates to a modular filter, a filtration device, and a method for assembling the filtration device. Background Technology

[0002] Air filters are generally used in engineering vehicles, automobiles, agricultural vehicles, laboratories, sterile operating rooms, clean workshops, clean factories, laboratories and clean rooms, or for dust prevention in electronic, mechanical and communication equipment, and air filtration in various precision operating rooms.

[0003] Traditional air filters 10 use a pipe head 11 and a pipe body 12 that are threaded together. The filter element 13 is locked to the pipe head 11 by a screw 14. The pipe body 12 covers the filter element 13, allowing air to enter and exit as follows: Figure 1 As shown by the middle arrow, when replacing filter element 13, the tube body 12 needs to be unscrewed first, and then the filter element 13 needs to be screwed on. When installing and removing filter element 13, it needs to be moved down to the bottom of the screw 14 first, and then removed horizontally. Figure 2 As shown, this requires a large space to be reserved between the bottom of the air filter 10 and the ground for disassembly and assembly. This is fine for small-flow air filters 10, but it would be relatively difficult to reserve such a large space for large-flow air filters 10. Summary of the Invention

[0004] The purpose of this invention is to provide a modular filter, a filtration device, and a method for assembling the filtration device. It aims to solve the technical problem in the prior art where air filters use a pipe head and pipe body threaded together, the filter element is locked to the pipe head by a screw, and the pipe body is covered outside the filter element. When replacing the filter element, the pipe body needs to be unscrewed first, and the filter element needs to be moved down to the bottom of the screw before being taken out laterally, requiring a large amount of space to be reserved for disassembly and assembly.

[0005] This invention provides a modular filter, comprising:

[0006] Top cover;

[0007] The filter assembly has a recessed air intake channel for gas to enter;

[0008] The assembly base includes an assembly cover, the assembly cover includes a base shell and a partition frame, the base shell has a receiving space, a first inlet and outlet, a second inlet and outlet, a first mounting port located at the top for the filter assembly to pass through when assembling and disassembling the filter assembly, and a second mounting port opposite to the first mounting port, the first inlet and outlet, the second inlet and outlet, the first mounting port and the second mounting port are all connected to the receiving space, and the partition frame is installed in the receiving space;

[0009] The bottom shell is installed on the second mounting port and has a receiving cavity. One end of the filter assembly is detachably installed on the partition frame, and the other end passes through the second mounting port and is located in the receiving cavity. The air intake channel is connected to the first inlet and outlet. The top cover is installed on the first mounting port. The gas in the air intake channel can be filtered by the filter assembly and discharged from the second inlet and outlet.

[0010] Furthermore, the partition frame includes a partition plate and an annular support plate. The partition plate is horizontally arranged and connected to the inner wall of the accommodating space. One end of the annular support plate passes through the partition plate and is connected to the partition plate, and the other end is connected to the bottom wall of the accommodating space. The outer wall of the annular support plate is connected to the inner wall of the accommodating space. The annular support plate has a vertically penetrating through hole that communicates with the second mounting port and a horizontally penetrating first air guide hole. The penetrating hole communicates with the second inlet and outlet through the first air guide hole. One end of the filter assembly is installed on the annular support plate, and the other end passes through the penetrating hole and the second mounting port in sequence. The partition plate is provided with a plurality of second air guide holes that communicate with the first inlet and outlet and the air intake channel.

[0011] Furthermore, the modular filter also includes several fasteners, the filter assembly is provided with several first through holes, the separator is provided with several threaded holes, and the fasteners pass through the first through holes and are connected to the threaded holes.

[0012] Furthermore, the filter assembly includes an end cap, an annularly arranged upper support ring, a first filter cartridge, a lower support ring, and a second filter cartridge. The upper support ring, the first filter cartridge, and the lower support ring are connected sequentially from top to bottom and enclose a through-through first air guide channel. The second filter cartridge is installed at the bottom of the lower support ring, and the second filter cartridge has a through-through second air guide channel. The end cap is installed at the bottom of the second filter cartridge and seals the second air guide channel. The inner wall of the first air guide channel, the inner wall of the second air guide channel, and the end cap constitute the air intake channel.

[0013] Furthermore, the filter assembly also includes a screw and a nut. The inner wall of the first air guide channel is provided with a connecting frame, and the connecting frame is provided with a second through hole. One end of the screw is connected to the end cap, and the other end passes through the second through hole and is connected to the nut.

[0014] Furthermore, both the first and second entrances / exits are located on the same side of the base shell.

[0015] Furthermore, the assembly seat also includes a sealing plate, and the base shell is also provided with a third inlet and a fourth inlet and a fourth inlet and a third inlet and a fourth inlet and a fourth inlet and a fourth inlet and a third inlet and a fourth inlet and a fourth inlet and a fifth inlet, which are both located on the other side of the base shell. The sealing plate is installed outside the base shell and can cover the first inlet and the second inlet or the third inlet and the fourth inlet.

[0016] Furthermore, the modular filter also includes a drain valve, which is mounted on the bottom shell and communicates with the receiving cavity.

[0017] The present invention also provides a filtration device, further comprising a valve seat and at least two modular filters as described above. The valve seat is provided with a main air inlet, a main air outlet separated from the main air inlet, two opposing first air distribution ports, and two opposing second air distribution ports. The two modular filters are respectively installed on both sides of the valve seat. The two first air distribution ports are respectively connected to the first inlet / outlet of one modular filter and the third inlet / outlet of the other modular filter. The two second air distribution ports are respectively connected to the second inlet / outlet of one modular filter and the fourth inlet / outlet of the other modular filter. The sealing plate is installed on the end of the base shell away from the valve seat.

[0018] The present invention also provides a method for assembling a filtration device, using the filtration device as described above, the assembly method comprising the following steps:

[0019] Step 1: Assemble the modular filter. Install the bottom shell onto the second mounting port of the assembly cover, then install the filter assembly onto the partition frame through the first mounting port, install the top cover onto the first mounting port, and finally install the sealing plate onto the corresponding outer wall of the assembly cover.

[0020] Step 2: Install one of the modular filters on each side of the valve seat, wherein the two first air distribution ports of the valve seat are respectively connected to the first inlet and outlet of one of the modular filters and the third inlet and outlet of another modular filter, and the two second air distribution ports of the valve seat are respectively connected to the second inlet and outlet of one of the modular filters and the fourth inlet and outlet of another modular filter.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] The filter of this invention adopts modular assembly. When replacing the filter component, the top cover can be removed first, and then the filter component can be pulled out from the first installation port. It is more convenient and quick to disassemble and replace the filter component. The modular filter does not require a large space between the bottom and the ground, which greatly reduces the overall space occupied by the filter equipment.

[0023] This invention installs a modular filter on each of the two ends of the valve seat. Gas enters from the main inlet on the valve seat, then enters the two modular filters through the two first branch inlets. After being filtered by the two modular filters, the gas is then guided back to the two second branch inlets of the valve seat and finally discharged from the main outlet. The faster the gas is filtered at the same time, the greater the gas flow rate that can be filtered. The more modular filters are spliced ​​together, the greater the gas flow rate that can be filtered. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view of the air filter provided in the background art of this invention;

[0025] Figure 2 This is a cross-sectional view of the air filter element being disassembled, as provided in the background art of this invention.

[0026] Figure 3 This is a schematic diagram of the structure of the modular filter provided in an embodiment of the present invention;

[0027] Figure 4 for Figure 3 explosion Figure 1 ;

[0028] Figure 5 for Figure 3 explosion Figure 2 ;

[0029] Figure 6 This is a top view of the modular filter provided in an embodiment of the present invention;

[0030] Figure 7 for Figure 6 A sectional view along line AA.

[0031] Figure 8 This is a schematic diagram of the assembly base provided in an embodiment of the present invention;

[0032] Figure 9 for Figure 8 Exploded view;

[0033] Figure 10 This is a schematic diagram of the structure of the filter assembly provided in an embodiment of the present invention;

[0034] Figure 11 for Figure 10 Exploded view;

[0035] Figure 12 This is a schematic diagram of the combined structure of the connecting frame, upper support ring, first filter cartridge, and lower support ring provided in an embodiment of the present invention.

[0036] Figure 13 This is a schematic diagram of the structure of the filtration device provided in an embodiment of the present invention;

[0037] Figure 14 for Figure 13 Exploded view;

[0038] Figure 15 This is a schematic diagram of the valve seat provided in an embodiment of the present invention.

[0039] Figure label:

[0040] 10. Air filter; 11. Pipe head; 12. Pipe body; 13. Filter element; 14. Screw; 20. Top cover; 30. Filter assembly; 31. Air inlet channel; 32. Upper support ring; 321. Lug; 3211. First perforation; 33. First filter cartridge; 34. Lower support ring; 35. Second filter cartridge; 351. Second air guide channel; 36. End cover; 37. First air guide channel; 371. Connecting bracket; 3711. Second perforation; 3712. Connecting ring; 3713. Support rod; 38. Screw; 39. Nut; 40. Assembly seat; 41. Assembly cover; 42. Sealing plate; 43. Base shell; 431. Accommodation space; 432. First inlet / outlet; 433. Second inlet / outlet; 434. First mounting port; 435. Second mounting port; 436. Third inlet / outlet; 437. Fourth inlet / outlet; 44. Divider Frame; 441, partition plate; 4411, second air guide hole; 4412, threaded hole; 4413, protrusion; 442, annular support plate; 4421, through hole; 4422, first air guide hole; 45, first sealing gasket; 50, bottom shell; 51, receiving cavity; 60, first sealing ring; 70, second sealing ring; 80, fastener; 90, third sealing ring; 100, filter equipment; 110, valve seat; 111. Valve housing; 1111. Main air inlet; 1112. Main air outlet; 1113. First air distributor; 1114. Second air distributor; 1115. Third air guide hole; 1116. Fourth air guide hole; 112. Baffle; 120. Cover plate; 130. First separator; 140. Second separator; 150. Third separator; 160. Locking rod; 170. Screw; 180. Second sealing gasket. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] Please see Figures 3 to 9 The present invention discloses a modular filter, including a top cover 20, a filter assembly 30, an assembly base 40, and a bottom shell 50.

[0044] The filter assembly 30 is recessed with an air intake channel 31 for gas to enter; the assembly base 40 includes an assembly cover 41 and a sealing plate 42 installed on one side of the assembly cover 41. The assembly cover 41 includes a base shell 43 and a partition frame 44. The base shell 43 is provided with a receiving space 431, a first inlet / outlet 432, a second inlet / outlet 433, a first mounting port 434, and a second mounting port 435. The receiving space 431 is located inside the base shell 43. The first inlet / outlet 432 and the second inlet / outlet 433 are opened on the side of the base shell 43. The first mounting port 434 and the second mounting port 435 are arranged opposite each other and are respectively opened on the top and bottom of the base shell 43. The first mounting port 434 is used for the filter assembly 30 to be inserted when disassembling and assembling the filter assembly 30. The first inlet / outlet 432, the second inlet / outlet 433, the first mounting port 434, and the second mounting port 435 are all connected to the receiving space 431. The partition frame 44 is located in the receiving space 431 and can be integrally formed with the base shell 43.

[0045] The bottom shell 50 is installed on the second mounting port 435. The bottom shell 50 has a recessed cavity 51 that communicates with the receiving space 431. One end of the filter assembly 30 is detachably installed on the partition frame 44, and the other end passes through the second mounting port 435 and is located in the receiving cavity 51. The filter assembly 30 and the inner side wall of the receiving cavity 51 are spaced apart. The air intake channel 31 communicates with the first inlet and outlet 432. The top cover 20 is installed on the first mounting port 434. The gas in the air intake channel 31 can be filtered by the filter assembly 30 and discharged from the second inlet and outlet 433. When replacing the filter assembly 30, the top cover 20 can be removed first, and then the filter assembly 30 can be pulled out from the first mounting port 434. It is more convenient and faster to disassemble and replace the filter assembly 30. Since the filter assembly 30 is disassembled and installed from the top of the assembly cover 41, there is no need to reserve too much space for disassembly and assembly between the bottom of the modular filter and the ground.

[0046] In this embodiment, the partition frame 44 includes a partition plate 441 and an annular support plate 442. The partition plate 441 is arranged horizontally and connected to the inner wall of the accommodating space 431. The annular support plate 442 is arranged vertically. One end, i.e., the top end, of the annular support plate 442 passes through the partition plate 441 and is connected to the partition plate 441. The other end, i.e., the bottom end, is connected to the bottom wall of the accommodating space 431. The outer wall of the annular support plate 442 is connected to the inner wall of the accommodating space 431, so as to block the horizontal flow of gas.

[0047] The annular support plate 442 has a vertically penetrating through hole 4421 and a horizontally penetrating first air guide hole 4422. The through hole 4421 corresponds to and communicates with the second mounting port 435. The first air guide hole 4422 is located below the partition plate 441. The through hole 4421 communicates with the second inlet / outlet 433 through the first air guide hole 4422. One end of the filter assembly 30 is installed on the annular support plate 442, and the other end passes through the through hole 4421 and the second mounting port 435 in sequence and is located in the receiving cavity 51. The filter assembly 30 and the top cover 20 are spaced apart. The partition plate 441 has several second air guide holes 4411 that connect the first inlet / outlet 432 and the air intake channel 31. External gas can enter the air intake channel 31 after passing through the first inlet / outlet 432 and the second air guide holes 4411 in sequence. The gas in the air intake channel 31 can be filtered by the filter assembly 30 and discharged through the first air guide hole 4422 and the second inlet / outlet 433 to achieve filtration and purification of external gas. Figure 7 The direction indicated by the middle arrow is the direction of gas flow.

[0048] Please continue reading. Figure 4 and Figure 5In some embodiments, the modular filter further includes several annularly arranged first sealing rings 60, which are sandwiched between the top cover 20 and the assembly seat 40 to prevent gas in the containment space 431 from leaking from the gap between the top cover 20 and the assembly seat 40.

[0049] In some embodiments, the modular filter further includes a plurality of annularly arranged second sealing rings 70, which are sandwiched between the bottom shell 50 and the assembly seat 40 to prevent gas in the receiving space 431 from leaking from the gap between the bottom shell 50 and the assembly seat 40.

[0050] Please refer to further information. Figure 4 , Figure 8 , Figures 10 to 12 In this embodiment, the filter assembly 30 includes an upper support ring 32, a first filter cartridge 33, a lower support ring 34, a second filter cartridge 35, and an end cap 36. The upper support ring 32 and the lower support ring 34 are both made of rigid material. The upper support ring 32, the first filter cartridge 33, the lower support ring 34, and the second filter cartridge 35 are all arranged in a ring structure. The first filter cartridge 33 and the second filter cartridge 35 are both made of breathable material. The upper support ring 32, the first filter cartridge 33, and the lower support ring 34 are connected from top to bottom and enclose to form a through first air guide channel 37. The second filter cartridge 35 is installed at the bottom of the lower support ring 34. The second filter cartridge 35 is provided with a through second air guide channel 351. The end cap 36 is installed at the bottom of the second filter cartridge 35 and seals the second air guide channel 351. The inner wall of the first air guide channel 37, the inner wall of the second air guide channel 351, and the end cap 36 constitute the air intake channel 31 described above.

[0051] In some embodiments, the modular filter further includes a plurality of fasteners 80. The filter assembly 30 is provided with a plurality of first through holes 3211, and the separator 44 is provided with a plurality of threaded holes 4412. The fasteners 80 pass through the first through holes 3211 and are connected to the threaded holes 4412, thereby fixing the filter assembly 30 stably on the separator 44. The fasteners 80 are preferably screws for locking. The filter assembly 30 can be quickly replaced using a hand drill.

[0052] Both the upper support ring 32 and the lower support ring 34 are annular structures. The outer wall of the upper support ring 32 is provided with two lugs 321. The first through hole 3211 is provided through the lugs 321. The partition plate 441 can be provided with a number of protrusions 4413. The threaded hole 4412 is provided on the protrusions 4413.

[0053] The filter assembly 30 also includes a screw 38 and a nut 39. The inner wall of the first air guide channel 37 is provided with a connecting frame 371. The connecting frame 371 has a second through hole 3711 running vertically through it. One end of the screw 38 is connected to the end cap 36, and the other end passes through the second through hole 3711 and is connected to the nut 39 to enhance the strength of the filter assembly 30.

[0054] The connecting frame 371 includes a connecting ring 3712 and three spaced-apart support rods 3713. The connecting ring 3712 has a second through hole 3711. One end of the support rod 3713 is connected to the inner wall of the first air guide channel 37, and the other end is connected to the outer wall of the connecting ring 3712. The connecting frame 371 will not block the flow of gas.

[0055] Please continue reading. Figure 5 , Figures 8 to 9 In some embodiments, the modular filter further includes a third sealing ring 90 arranged in annularly, which is sandwiched between the filter assembly 30 and the separator 44 to enhance the sealing between the filter assembly 30 and the separator 44.

[0056] The base shell 43 is also provided with a third inlet 436 and a fourth inlet 437. The third inlet 436 is opposite to and connected to the first inlet 432, and the fourth inlet 437 is opposite to and connected to the second inlet 433. The first inlet 432 and the second inlet 433 are both located on the same side of the base shell 43, and the third inlet 436 and the fourth inlet 437 are both located on the other side of the base shell 43. The sealing plate 42 is installed outside the base shell 43. The sealing plate 42 can cover the first inlet 432 and the second inlet 433, or, when needed, the sealing plate 42 can cover the third inlet 436 and the fourth inlet 437.

[0057] In some embodiments, the assembly seat 40 further includes an annular first sealing gasket 45, which is sandwiched between the sealing plate 42 and the base shell 43. The first sealing gasket 45 can prevent gas in the accommodating space 431 from leaking between the sealing plate 42 and the base shell 43.

[0058] The modular filter also includes a drain valve, which is mounted on the bottom shell 50 and communicates with the receiving cavity 51. The drain valve is used to drain the water remaining in the receiving cavity 51.

[0059] Please refer to further information. Figures 8 to 10 ,as well as Figures 13 to 15 The present invention also discloses a filtration device 100, which includes a valve seat 110 and at least two modular filters as described above. The number of modular filters can be set as needed.

[0060] In this embodiment, two modular filters are preferred. The valve seat 110 is provided with a main air inlet 1111, a main air outlet 1112 separated from the main air inlet 1111, two oppositely arranged first air distribution ports 1113, and two oppositely arranged second air distribution ports 1114. The two modular filters are respectively installed on both sides of the valve seat 110. The two first air distribution ports 1113 are respectively connected to the first inlet / outlet 432 of one modular filter and the third inlet / outlet 436 of the other modular filter. The two second air distribution ports 1114 are respectively connected to the first inlet / outlet 432 of one modular filter and the third inlet / outlet 436 of the other modular filter. The two inlets 433 and the fourth inlet 437 of another modular filter are connected. The sealing plate 42 is installed on the end of the base shell 43 away from the valve seat 110. A large flow of external gas can enter from the main inlet 1111, and then be dispersed into the two modular filters from the two first distribution ports 1113. Finally, after being filtered by the two modular filters, it enters the main outlet 1112 from the two second distribution ports 1114. The filtration device 100 is suitable for users who filter large flow of gas by adding modular filters of the same structure on both sides of the valve seat 110.

[0061] Specifically, the two modular filters are defined as a first separator 130 and a second separator 140, respectively. The first separator 130 and the second separator 140 are respectively installed on both sides of the valve seat 110. The sealing plate 42 on the first separator 130 will cover the third inlet 436 and the fourth inlet 437 thereon. The sealing plate 42 on the second separator 140 will cover the first inlet 432 and the second inlet 433 thereon. Therefore, the two first air distribution ports 1113 are respectively connected to the first inlet 432 of the first separator 130 and the third inlet 436 of the second separator 140, and the two second air distribution ports 1114 are respectively connected to the second inlet 433 of the first separator 130 and the fourth inlet 437 of the second separator 140.

[0062] In some embodiments, the valve seat 110 includes a valve housing 111 and a baffle 112. The main air inlet 1111, the main air outlet 1112, the first air distribution port 1113 and the second air distribution port 1114 are all disposed on the valve housing 111. The baffle 112 is disposed inside the valve housing 111 and separates the main air inlet 1111 and the main air outlet 1112, so that the main air inlet 1111 and the main air outlet 1112 are not connected to each other.

[0063] In some embodiments, the filtration device 100 further includes a cover plate 120 mounted on the valve seat 110. The cover plate 120 is mounted on the top of the valve housing 111, and gas flow direction arrows can be marked on the cover plate 120 to facilitate quick assembly of the valve seat 110 by the user.

[0064] In some embodiments, the filtration device 100 further includes a pressure valve and an air guide pipe installed on the valve housing 111. A third air guide hole 1115 and a fourth air guide hole 1116 are provided through the valve housing 111. The third air guide hole 1115 and the fourth air guide hole 1116 are respectively connected to the main air inlet 1111 and the main air outlet 1112. One end of the air guide pipe is connected to the third air guide hole 1115 and the other end is connected to the fourth air guide hole 1116. The pressure valve is installed in the middle of the air guide pipe and is used to measure the pressure difference between the main air inlet 1111 and the main air outlet 1112.

[0065] When there are three modular filters, the third modular filter is defined as the third separator 150. The third separator 150 needs to be installed at the end of the second separator 140 away from the valve seat 110. Unlike when there are only two modular filters, the second separator 140 does not have a sealing plate 42 installed. The sealing plate 42 on the third separator 150 will cover the first inlet 432 and the second inlet 433. The first inlet 432 on the second separator 140 is connected to the third inlet 436 on the third separator 150. The second inlet 433 on the second separator 140 is connected to the fourth inlet 437 on the third separator 150. The three modular filters can further increase the flow rate of the filtered gas.

[0066] In some embodiments, the valve seat 110, the first separator 130, the second separator 140 and the third separator 150 can be fixed to each other by locking rod 160 and screw 170. Of course, other fixing methods are not excluded in this embodiment, such as snap-fit ​​or adhesive.

[0067] In some embodiments, the filtration device 100 further includes a plurality of annular second sealing gaskets 180, which may be respectively sandwiched between the valve seat 110 and the first separator 130, and between the second separator 140 and the sealing plate 42, to enhance the sealing performance between them.

[0068] The present invention also discloses an assembly method for a filtration device 100, which uses the filtration device 100 as described above. The assembly method includes the following steps:

[0069] Step 1: Assemble the modular filter. First, install the bottom shell 50 onto the second mounting port 435 of the assembly cover 41. Then, install the filter assembly 30 onto the partition frame 44 through the first mounting port 434. The top cover 20 is installed onto the first mounting port 434, with a gap between the top cover 20 and the installed filter assembly 30. Finally, install the sealing plate 42 onto the corresponding outer wall of the assembly cover 41. In this embodiment, the filter assembly 30 can be removed from the first mounting port 434 to replace the filter assembly 30.

[0070] Step 2: Install a modular filter on each side of the valve seat 110. The two first air distribution ports 1113 of the valve seat 110 are connected to the first inlet / outlet 432 of one modular filter and the third inlet / outlet 436 of the other modular filter, respectively. The two second air distribution ports 1114 of the valve seat 110 are connected to the second inlet / outlet 433 of one modular filter and the fourth inlet / outlet 437 of the other modular filter, respectively. A large flow of external gas can enter from the main air inlet 1111 of the valve seat 110, and then be dispersed into the two modular filters from the two first air distribution ports 1113. Finally, after being filtered by the two modular filters, the gas enters the main air outlet 1112 from the two second air distribution ports 1114. This filtration device 100 is suitable for users who need to filter large flow of gas by adding modular filters with the same structure on both sides of the valve seat 110.

[0071] In summary, the modular filter of the present invention is easy to disassemble and assemble. The filter adopts modular assembly. When replacing the filter component 30, the top cover 20 can be removed first, and then the filter component 30 can be pulled out from the first installation port 434. It is more convenient and faster to disassemble and replace the filter component 30. The bottom of the modular filter does not need to reserve too much space for disassembly and assembly, which greatly reduces the space occupied by the filter equipment 100.

[0072] This invention installs a modular filter on each of the two ends of the valve seat 110. Gas enters from the main inlet 1111 on the valve seat 110, then enters the two modular filters through the two first branch inlets 1113. After being filtered by the two modular filters, the gas is then guided back to the two second branch inlets 1114 of the valve seat 110, and finally discharged from the main outlet 1112. The faster the filtration speed of the filter device 100, the greater the gas flow rate that can be filtered. The more modular filters are assembled, the greater the gas flow rate that can be filtered. Figure 13 As shown, after determining the number of modular filters and valve seats 110 according to the flow rate and assembling them in a row, the positions of valve seats 110 and modular filters can be adjusted according to the site conditions or customer requirements.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A modular filter, characterized by The module filter comprises: a top cover; a filter assembly, which is concavely provided with an air inlet channel for air to enter; an assembly seat, which comprises an assembly cover, the assembly cover comprises a base shell and a partition frame, the base shell is provided with a containing space, a first outlet, a second outlet, a first mounting hole located at the top and used for the filter assembly to pass through when the filter assembly is disassembled, and a second mounting hole arranged opposite to the first mounting hole, the first outlet, the second outlet, the first mounting hole and the second mounting hole are all in communication with the containing space, and the partition frame is arranged in the containing space; a bottom shell, which is mounted on the second mounting hole, the bottom shell is provided with a containing cavity, one end of the filter assembly is detachably mounted on the partition frame, and the other end of the filter assembly is located in the containing cavity after passing through the second mounting hole, the air inlet channel is in communication with the first outlet, the top cover is mounted on the first mounting hole, and the air in the air inlet channel can be filtered by the filter assembly and discharged from the second outlet; the partition frame comprises a partition plate and an annular support plate, the partition plate is arranged transversely and connected with the inner side wall of the containing space, one end of the annular support plate penetrates through the partition plate and is connected with the partition plate, the other end of the annular support plate is connected with the bottom wall of the containing space, the outer side wall of the annular support plate is connected with the inner side wall of the containing space, the annular support plate has a penetrating hole vertically penetrating through and in communication with the second mounting hole, and a first air guide hole transversely penetrating through, the penetrating hole is in communication with the second outlet through the first air guide hole, one end of the filter assembly is mounted on the annular support plate, and the other end of the filter assembly sequentially passes through the penetrating hole and the second mounting hole, and the partition plate is provided with a plurality of second air guide holes in communication with the first outlet and the air inlet channel.

2. The modular filter of claim 1, wherein: The module filter further comprises a plurality of fasteners, the filter assembly is provided with a plurality of first perforations, the partition frame is provided with a plurality of threaded holes, and the fasteners are connected with the threaded holes after penetrating through the first perforations.

3. The modular filter of claim 1, wherein: The filter assembly comprises an end cover, an upper support ring, a first filter cartridge, a lower support ring and a second filter cartridge arranged in a ring shape, the upper support ring, the first filter cartridge and the lower support ring are sequentially connected from top to bottom and surround to form a first air guide channel penetrating through, the second filter cartridge is mounted at the bottom of the lower support ring, the second filter cartridge is provided with a second air guide channel penetrating through, the end cover is mounted at the bottom of the second filter cartridge and seals the second air guide channel, and the inner wall of the first air guide channel, the inner wall of the second air guide channel and the end cover constitute the air inlet channel.

4. The modular filter of claim 3, wherein: The filter assembly further comprises a screw rod and a nut, the inner wall of the first air guide channel is provided with an adapter frame, the adapter frame is provided with a second perforation, one end of the screw rod is connected with the end cover, and the other end of the screw rod is connected with the nut after penetrating through the second perforation.

5. The modular filter of claim 1, wherein: The first outlet and the second outlet are both arranged on the same side of the base shell.

6. The modular filter of claim 1, wherein: The assembly base further comprises a cover plate, the base shell is further provided with a third access hole and a fourth access hole which are respectively opposite to the first access hole and the second access hole and are in communication, the third access hole and the fourth access hole are arranged on the other side of the base shell, the cover plate is installed outside the base shell, and the cover plate covers the first access hole and the second access hole or covers the third access hole and the fourth access hole.

7. The modular filter of claim 1, wherein: The modular filter further comprises a drain valve which is installed on the bottom shell and is in communication with the containing cavity.

8. A filter apparatus, characterized by: The valve seat is provided with a total air inlet, a total air outlet which is separated from the total air inlet, two oppositely arranged first air outlets and two oppositely arranged second air outlets, the two modular filters are respectively installed on the two sides of the valve seat, the two first air outlets are respectively in communication with the first access hole of one modular filter and the third access hole of another modular filter, and the two second air outlets are respectively in communication with the second access hole of one modular filter and the fourth access hole of another modular filter.

9. A method of assembling a filter apparatus, characterised by: The filter device is assembled by the method as claimed in claim 8, and the assembling method comprises the following steps: Step one: assembling the modular filter, wherein the bottom shell is installed on the second installation port of the assembly cover, the filter assembly is installed on the partition frame through the first installation port, the top cover is installed on the first installation port, and finally the cover plate is installed on the corresponding outer side wall of the assembly cover; Step two: installing one modular filter on each side of the valve seat, wherein the two first air outlets of the valve seat are respectively in communication with the first access hole of one modular filter and the third access hole of another modular filter, and the two second air outlets of the valve seat are respectively in communication with the second access hole of one modular filter and the fourth access hole of another modular filter.

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