Purification device for combined air conditioning unit

Abstract

The present invention relates to the field of air conditioning technology, and specifically discloses a purification device for a combined air-conditioning unit, comprising: a first purification unit, comprising a first purification chamber and a second purification chamber, wherein a primary filter element is provided in the first purification chamber, and an electrostatic dust removal element is provided in the second purification chamber; a second purification unit, comprising a separation chamber, wherein side chambers are symmetrically provided on both sides of the separation chamber, and two groups of vertically distributed filter cartridge modules are detachably installed in the separation chamber, and a partition plate adapted to the filter cartridge modules is also rotatably provided in the separation chamber; the air first passes through the primary filter element to intercept large particles of dust, and then passes through the electrostatic dust removal element to remove fine particles and aerosols, and finally passes through the filter cartridge modules connected in the separation chamber to remove VOCs and odors; the partition plate is rotated to instantaneously block the airflow channel of the filter cartridge module in use, and at the same time connect another group of spare filter cartridge module channels, thereby realizing transient switching of the purification path and ensuring purification continuity; the modules can be disassembled and assembled without shutting down the machine, thereby eliminating shutdown losses.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and more particularly to a purification device for a combined air conditioning unit. Background Art

[0002] As people's requirements for indoor air quality continue to increase, the air purification function of air conditioning units is becoming increasingly important. Traditional air conditioning purification devices have many shortcomings. On the one hand, their purification efficiency is limited and they can only simply filter some pollutants in the air. They are not very effective in purifying complex pollutants such as fine particles, aerosols, VOCs, and odors, making it difficult to meet in-depth air purification needs. On the other hand, maintenance and replacement of filter modules often require system downtime, which not only causes the air conditioning system to be temporarily inoperable, affecting the comfort of the indoor environment, but also increases the time cost and complexity of maintenance, and reduces the overall operating efficiency of the air conditioning unit. Especially in some places with high requirements for continuous operation, such as hospitals and data centers, the losses caused by downtime for filter module replacement are more significant.

[0003] Furthermore, existing devices also have irrational air flow path designs, which prevent them from fully utilizing the advantages of each purification component, thus affecting the performance of the entire purification system. Therefore, there is an urgent need for a purification device for air conditioning units that can achieve multi-stage, high-efficiency purification and can instantly switch filter modules without shutting down the system, in order to overcome the above-mentioned shortcomings of the existing technology. Summary of the Invention

[0004] In order to overcome the above technical problems, the present invention proposes a purification device for a combined air-conditioning unit.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A purification device for a combined air conditioning unit, arranged at the air inlet end of the air conditioning unit, comprising:

[0007] The first purification unit includes a first shell detachably connected to the air conditioning unit, an air inlet being provided on a side of the first shell away from the air conditioning unit, a middle partition being provided in the first shell, the middle partition dividing the first shell into a first purification chamber and a second purification chamber, a primary filter being provided in the first purification chamber, and an electrostatic dust removal element being provided in the second purification chamber;

[0008] The second purification unit is connected to the second purification chamber and includes a second shell. An arc-shaped partition is provided in the second shell. A separation chamber is provided in the arc-shaped partition. Side chambers are symmetrically provided on both sides of the separation chamber. An opening is provided between the separation chamber and the side chamber. Two groups of vertically distributed filter element modules are detachably installed in the separation chamber. A partition plate adapted to the filter element module is also rotatably provided in the separation chamber.

[0009] As a further solution of the present invention: an air passage communicating with the second purification chamber is provided on a side of the second shell facing the first shell, an air outlet is provided on a side of the second shell away from the first shell, and both side chambers are in one-way communication with the air outlet;

[0010] One-way flexible sealing plates are provided at the connection points between the two side storage bins and the air outlet, and a second limiting block adapted to the one-way flexible sealing plates is provided on the arc-shaped partition.

[0011] As a further solution of the present invention: a rotating drum is rotatably installed at the center of the side bin, the partition plate is fixed on the rotating drum, and first limit blocks adapted to the partition plate are symmetrically arranged on the inner walls on both sides of the arc-shaped partition plate.

[0012] As a further solution of the present invention: a square slide rod is embedded in the rotating drum for axial sliding, the protruding end of the square slide rod is connected to a rotating rod, the rotating rod is connected to the top of the second shell by a tension spring, the tension spring is movably sleeved on the square slide rod, and a slot adapted to the square slide rod is provided at the bottom of the side bin.

[0013] As a further solution of the present invention: an air pump is provided on the top of the second shell, and air pipes are connected between the air pump and the filter element modules on both sides.

[0014] As a further solution of the present invention: the primary filter element includes a pull-out plate slidably embedded in the first purification chamber, a plurality of accommodating grooves are equidistantly provided in the pull-out plate, a flip plate is rotatably installed in the accommodating groove, a filter is provided on the flip plate, and a groove adapted to the corresponding flip plate is provided on the middle partition plate; a flip driving member for driving each flip plate is provided in the pull-out plate.

[0015] As a further solution of the present invention: the flip driving component includes a push slide that slides vertically and is embedded in the pull-out plate, and each group of flip plates is provided with a cable connected to the push slide; a sliding groove is provided on the side wall of the pull-out plate, and a shift rod that is movable and passes through the sliding groove is connected to the flip plate.

[0016] As a further solution of the present invention: each group of flip plates is provided with a flexible bag body adapted to the groove at one end away from the pull-out plate, and the outer wall of the pull-out plate is provided with an airbag strip connected to each flexible bag body, and an extrusion plate is installed on the side of the airbag strip away from the pull-out plate. A handle is also fixed on the pull-out plate, and a spiral push rod is threadedly connected to the handle to abut against the extrusion plate.

[0017] As a further solution of the present invention: a transition bin is provided at the top of the first shell, and both ends of the transition bin are connected to the first purification bin and the second purification bin respectively; an ash hopper is provided at the bottom of the second purification bin.

[0018] As a further solution of the present invention: the electrostatic dust removal component includes a packaging rack fixed in the second purification chamber, and an electrostatic dust removal net is obliquely arranged on the packaging rack; a dual-axis motor is installed in the air duct, and a vibrating piece is connected to the end of the dual-axis motor close to the electrostatic dust removal net, and a blade is connected to the end of the dual-axis motor away from the electrostatic dust removal net.

[0019] Beneficial effects of the present invention:

[0020] The air passes through the primary filter in the first purification chamber to intercept large dust particles, then passes through the electrostatic dust removal element in the second purification chamber to remove fine particles and aerosols, and finally passes through the filter module in the separation chamber to remove VOCs and odors, forming a multi-stage combined purification path from coarse to fine, significantly improving the air purification quality;

[0021] By rotating the partition plate in the separation chamber, the airflow path of the currently used filter module is instantly physically blocked, while the airflow path of the other spare filter module is opened, achieving instantaneous switching of the purification path and ensuring purification continuity. After the partition plate blocks the filter module to be replaced, the module is mechanically isolated from the airflow system, allowing it to be safely removed and installed during normal operation of the air conditioning unit, completely eliminating downtime losses.

[0022] The separation chamber and double-side chambers constructed by the curved partition in the second shell support the vertical distribution of two groups of filter modules. Combined with the rotatable partition plate, efficient airflow switching can be achieved in a limited space. The isolated filter module can be replaced in situ by simply operating the partition plate to switch the path, greatly reducing the maintenance complexity and time cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the assembly of the present invention and the air conditioning unit;

[0025] Figure 2 It is a three-dimensional schematic diagram of the present invention;

[0026] Figure 3 is a cross-sectional view of the present invention;

[0027] Figure 4 Schematic diagram of the structure of the second purification unit in the present invention;

[0028] Figure 5 This is a schematic diagram of the first state of the partition plate in the present invention;

[0029] Figure 6 This is a schematic diagram of the second state of the partition plate in the present invention;

[0030] Figure 7 Schematic diagram of the top structure of the second shell in the present invention;

[0031] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0032] Figure 9 A cross-sectional view from another perspective of the present invention;

[0033] Figure 10 for Figure 9 Enlarged view of point B in the middle;

[0034] Figure 11 Schematic diagram of the structure of the first shell in the present invention;

[0035] Figure 12 for Figure 11 Enlarged view of point C in the middle.

[0036] In the picture:

[0037] 100. Air conditioning units;

[0038] 200, first purification unit; 210, first shell; 211, air inlet; 220, middle partition; 221, groove; 230, first purification chamber; 240, transition chamber; 250, second purification chamber; 251, ash hopper; 260, primary filter element; 261, pull-out plate; 262, receiving groove; 263, flip plate; 264, filter screen; 265, push slide; 266, cable; 267, flexible capsule; 268, chute; 269, lever; 2610, airbag strip; 2611, extrusion plate; 2612, handle; 2613, screw ejector; 270, electrostatic precipitator; 271, packaging frame; 272, electrostatic precipitator screen;

[0039] 300. Second purification unit; 310. Second shell; 311. Air duct; 312. Air outlet; 313. Dual-axis motor; 314. Blades; 315. Vibrating piece; 320. Arc-shaped partition; 321. First limit block; 322. Second limit block; 330. Separation chamber; 331. Opening; 340. Side chamber; 350. Rotating drum; 351. Square slide rod; 352. Rotating rod; 353. Tension spring; 360. Partition plate; 370. Filter element module; 380. One-way flexible sealing plate; 390. Air pump; 391. Air pipe. DETAILED DESCRIPTION

[0040] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0041] See also Figure 1 and Figure 2 , the present invention discloses a purification device for a combined air-conditioning unit, which is arranged at the air inlet end of the air-conditioning unit 100 and includes a first purification unit 200 and a second purification unit 300;

[0042] See also Figure 3 The first purification unit 200 includes a first shell 210 detachably connected to the air-conditioning unit 100, an air inlet 211 is provided on a side of the first shell 210 away from the air-conditioning unit 100, a middle partition 220 is provided in the first shell 210, and the middle partition 220 divides the first shell 210 into a first purification chamber 230 and a second purification chamber 250, a primary filter element 260 is provided in the first purification chamber 230, and an electrostatic dust removal element 270 is provided in the second purification chamber 250;

[0043] See also Figure 4 The second purification unit 300 is connected to the second purification chamber 250 and includes a second shell 310. An arc-shaped partition 320 is provided in the second shell 310. A separation chamber 330 is provided in the arc-shaped partition 320. Side chambers 340 are symmetrically provided on both sides of the separation chamber 330. An opening 331 is provided between the separation chamber 330 and the side chamber 340. Two groups of vertically distributed filter cartridge modules 370 are detachably installed in the separation chamber 330. A partition plate 360 ​​adapted to the filter cartridge module 370 is also rotatably provided in the separation chamber 330.

[0044] Specifically, air enters the first purification chamber 230 through the air inlet 211, and is primarily purified by the primary filter element 260 to intercept large dust particles in the air. The air after primary purification enters the second purification chamber 250, and is electrostatically precipitated by the electrostatic dust removal element 270 to remove fine particles and some aerosols.

[0045] The air after primary purification and electrostatic dust removal enters the second housing 310, wherein the partition plate 360 ​​has two switching states;

[0046] See also Figure 5 In the first state, the partition plate 360 ​​rotates to block only one set of filter modules 370, while the other set of filter modules 370 remains unblocked, so that air enters the separation chamber 330 and passes through the other set of unblocked filter modules 370 (the dotted arrows in the figure indicate the air flow direction). The air is purified again by the set of filter modules 370 to remove VOCs and odors. The air then flows into the air conditioning unit 100 in a one-way manner through the side chamber 340 on the same side as the set of filter modules 370.

[0047] See also Figure 6 When the filter element module 370 in use reaches the replacement cycle, the partition plate 360 ​​is rotated 90 degrees to switch to the second state, and the group of filter element modules 370 to be replaced is blocked by the partition plate 360, while the other group of unused filter element modules 370 is turned on. In this way, the air flow path in the second shell 310 can be switched (the dotted arrow in the figure indicates the air flow direction), and at the same time, the group of filter element modules 370 to be replaced can be replaced without stopping the machine.

[0048] It is worth noting that the air passes through the primary filter element 260 in the first purification chamber 230 to intercept large dust particles, then passes through the electrostatic dust removal element 270 in the second purification chamber 250 to remove fine particles and aerosols, and finally passes through the selected filter element module 370 in the separation chamber 330 to remove VOCs and odors, forming a multi-stage combined purification path from coarse to fine, significantly improving the air purification quality;

[0049] By rotating the partition plate 360 ​​in the separation chamber 330, the airflow path of the filter cartridge module 370 currently in use is instantly physically blocked, while the airflow path of the other set of spare filter cartridge modules 370 is simultaneously opened, thereby achieving instantaneous switching of the purification path and ensuring purification continuity. After the partition plate 360 ​​blocks the filter cartridge module 370 to be replaced, the module is mechanically isolated from the airflow system, allowing it to be safely removed and installed during normal operation of the air conditioning unit 100, completely eliminating downtime losses.

[0050] The separation chamber 330 and the double-side chamber 340 constructed by the arc-shaped partition 320 in the second shell 310 support the vertical distribution of two groups of filter element modules 370; combined with the rotatable partition plate 360, efficient airflow switching is achieved in a limited space. The filter element module 370 in the isolated state can be replaced in situ by simply operating the partition plate 360 ​​to switch the path, which greatly reduces the maintenance complexity and time cost.

[0051] In one embodiment, see Figure 4 The second shell 310 is provided with an air passage 311 on the side facing the first shell 210 and communicating with the second purification chamber 250. The second shell 310 is provided with an air outlet 312 on the side away from the first shell 210. Both side chambers 340 are in one-way communication with the air outlet 312.

[0052] Specifically, when the partition plate 360 ​​is rotated to block one group of filter modules 370, the air in the second purification chamber 250 enters the separation chamber 330 through the air duct 311, and then can only pass through the other group of unblocked filter modules 370 and enter the side chamber 340 on the same side. The air then flows out in one direction through the side chamber 340 and enters the air-conditioning unit 100 through the air outlet 312.

[0053] Further, see Figure 4 , a one-way flexible sealing plate 380 is provided at the connection between the two side bins 340 and the air outlet 312, and a second limiting block 322 adapted to the one-way flexible sealing plate 380 is provided on the arc partition 320;

[0054] Specifically, in the initial state, the one-way flexible sealing plate 380 is always in contact with the corresponding second limiting block 322, so that the one-way flexible sealing plate 380 is used to seal the connection between the same-side side bin 340 and the air outlet 312. The second limiting block 322 can reversely limit the one-way flexible sealing plate 380 to prevent air backflow.

[0055] When the air enters the side bin 340 on the same side through the unblocked filter module 370, the air pressure in the side bin 340 increases, so that the one-way flexible sealing plate 380 on the same side can be pushed toward the side of the air outlet 312, so that the air in the side bin 340 is discharged from the air outlet 312 into the air-conditioning unit 100. However, due to the restriction of the corresponding second limit block 322, the one-way flexible sealing plate 380 on the other side cannot be opened in the opposite direction toward the side bin 340 on the same side even if the air pressure in the air outlet 312 increases, thereby ensuring the relative isolation of the side bin 340 from the external environment and not affecting the non-stop replacement and maintenance of the filter module 370 on that side.

[0056] For further information, see Figure 4A rotating drum 350 is rotatably mounted at the center of the side bin 340, the partition plate 360 ​​is fixed on the rotating drum 350, and first limiting blocks 321 adapted to the partition plate 360 ​​are symmetrically provided on the inner walls on both sides of the arc-shaped partition plate 320;

[0057] Specifically, the partition plate 360 ​​is driven to rotate in the side bin 340 by the rotating drum 350. When the partition plate 360 ​​rotates to fit with one group of filter element modules 370, the group of filter element modules 370 can be sealed. At the same time, the partition plate 360 ​​contacts the first limit block 321 on the opposite side. The rotation angle of the partition plate 360 ​​is limited by the first limit blocks 321 on both sides, so that the state switching of the partition plate 360 ​​within a certain range can be achieved to realize the selective sealing of the two groups of filter element modules 370.

[0058] It should be noted that the partition plate 360 ​​is driven by the rotating drum 350 to rotate until it is in contact with one set of filter modules 370 (limited by the first limit block 321), physically blocking the airflow path of the filter module 370. At the same time, the air in the second purification chamber 250 enters the separation chamber 330 through the air passage 311 and is forced to pass through the other unblocked set of filter modules 370, thus achieving a purely mechanical switching of the purification path.

[0059] When air passes through the unblocked filter element module 370 and enters the side bin 340 on the same side, the increased air pressure pushes the one-way flexible sealing plate 380 away from the second limiting block 322, allowing the air to flow toward the air outlet 312; the one-way flexible sealing plate 380 on the inactive side is reversely limited by the second limiting block 322. Even if the pressure at the air outlet 312 increases, it cannot be opened into the side bin 340, ensuring that the side bin 340 is completely sealed, providing an isolated environment for filter element replacement;

[0060] The rotating drum 350 drives the partition plate 360 ​​to rotate in the separation chamber 330, and the first limit blocks 321 on both sides accurately limit the rotation angle of the partition plate 360 ​​to ensure that it has only two stable states: State 1, the left filter element module 370 is blocked and the right filter element module 370 is connected; State 2, the right filter element module 370 is blocked and the left filter element module 370 is connected; thereby eliminating the risk of misoperation, and the switching action is reliable and repeatable; the side chamber 340 where the filter element module 370 blocked by the partition plate 360 ​​is located is in an airtight isolation state (locked by the one-way flexible sealing plate 380 and the second limit block 322), and maintenance personnel can safely disassemble and replace the filter element module 370 while the system is continuously running, completely eliminating downtime losses.

[0061] Also, see Figure 7 and Figure 8In order to lock the partition plate 360 ​​in one of the states, a square slide bar 351 is axially slidably embedded in the rotating drum 350. The protruding end of the square slide bar 351 is connected to a rotating rod 352. The rotating rod 352 is connected to the top of the second shell 310 by a tension spring 353. The tension spring 353 is movably mounted on the square slide bar 351. A slot (not shown in the figure) that is adapted to the square slide bar 351 is formed at the bottom of the side bin 340.

[0062] Specifically, the drum 350 is rotatably mounted in the side bin 340, while the square slide bar 351 can only slide axially relative to the drum 350 and cannot rotate relative to it; when the partition plate 360 ​​rotates to fit one of the filter element modules 370, due to the tension of the tension spring 353, the lower end of the square slide bar 351 is embedded in the groove at the bottom of the side bin 340. At this time, the square slide bar 351 cannot rotate, thereby restricting the rotation of the drum 350 and the partition plate 360, and the partition plate 360 ​​can be locked in the current position;

[0063] When the state of the partition plate 360 ​​needs to be switched, hold the rotating rod 352 and pull up the square slide bar 351, so that the square slide bar 351 slides axially relative to the rotating drum 350 until the lower end of the square slide bar 351 moves out of the slot. At this time, the slot no longer restricts the circumferential rotation of the square slide bar 351. By rotating the rotating rod 352, the square slide bar 351, the rotating drum 350 and the partition plate 360 ​​can be driven to rotate synchronously, thereby realizing the state switching of the partition plate 360.

[0064] It is worth noting that when the partition plate 360 ​​rotates to the target position (fitting the filter element module 370), the tension spring 353 automatically pulls the square slide bar 351 into the slot at the bottom of the side bin 340. Through the geometric interlocking of the slot and the square slide bar 351, the rotation of the drum 350 is rigidly restricted, thereby locking the position of the partition plate 360. Pulling up the rotating rod 352 drives the square slide bar 351 to slide axially out of the slot, releasing the rotation constraint of the drum 350. Keeping the pulled-up state, rotating the rotating rod 352, the square slide bar 351 drives the drum 350 and the partition plate 360 ​​to rotate synchronously, thus switching the partition plate 360 ​​to a new working position, physically isolating the locking and rotation functions, and eliminating the risk of accidental touch.

[0065] The tension spring 353 continuously provides axial tension to ensure that the square slide bar 351 is always tightly locked in the slot under the vibration condition of the equipment to prevent accidental unlocking during operation; the square slide bar 351 simultaneously assumes the functions of axial sliding (unlocking) and circumferential torque transmission (rotation).

[0066] See also Figure 8 An air pump 390 is provided on the top of the second housing 310, and air pipes 391 are connected between the air pump 390 and the filter element modules 370 on both sides;

[0067] Specifically, when it is necessary to switch the filter element module 370, the air pump 390 is turned on, and the filter element modules 370 on both sides are synchronously sucked through the air pipe 391; wherein, the new filter element module 370 is in place, and the new filter element module 370 is vacuumed to detect the vacuum stability of the detector, including the sealing pre-inspection and the filter material compaction inspection; at the same time, the old filter element module 370 to be replaced is maintained at a negative pressure, and the old filter element module 370 is removed from the second shell 310 to avoid dust overflow from the old filter element module 370.

[0068] It should be noted that after the air pump 390 is turned on, the filter element modules 370 on both sides are simultaneously sucked through the air pipe 391. On the one hand, this realizes the pre-inspection of the new module, vacuuming the newly installed filter element module 370, verifying its sealing and filter material compaction through the stability of the vacuum degree, and predicting the reliability of the installation; on the other hand, it realizes the protection of the old module, maintaining negative pressure on the filter element module 370 to be replaced, absorbing residual dust inside, and avoiding the spread of pollution during disassembly;

[0069] Maintain negative pressure throughout the entire process of removing the old filter module 370 to form an internal airflow barrier, completely blocking the risk of dust spillage and ensuring a clean maintenance environment.

[0070] Fluctuations in the vacuum level of the new module directly reflect sealing defects (such as frame deformation and installation misalignment), exposing problems immediately before commissioning to prevent air leakage and short circuits after installation. The vacuuming process uniformly pre-compresses the filter material (such as activated carbon) of the new module, eliminating loose gaps caused by shipping and improving initial filtration efficiency.

[0071] In yet another embodiment, see Figure 9 and Figure 10 The primary filter element 260 includes a pull-out plate 261 slidably embedded in the first purification chamber 230, and a plurality of accommodating grooves 262 are equidistantly provided in the pull-out plate 261. A flip plate 263 is rotatably installed in the accommodating groove 262, and a filter screen 264 is provided on the flip plate 263. The middle partition plate 220 is provided with a groove 221 adapted to the corresponding flip plate 263; a flip driving member for driving each flip plate 263 is provided in the pull-out plate 261;

[0072] Specifically, in the initial state, each set of flip plates 263 flips downward to a horizontal state. At this time, the end of the flip plate 263 away from the pull-out plate 261 is just embedded in the corresponding groove 221. External air enters the first purification chamber 230 through the air inlet 211 and passes through each layer of filter screen 264 from the bottom layer upward. Large particles in the air are intercepted step by step by the multiple layers of filter screens 264 arranged above and below.

[0073] When the primary filter element 260 needs to be cleaned and replaced, the flip drive element drives each group of flip plates 263 to flip upward and fold into the corresponding receiving groove 262, so as to facilitate the entire primary filter element 260 to be pulled out from the inner side of the first purification chamber 230 from the side of the first shell 210.

[0074] Further, see Figure 9 and Figure 10 The flip driving member includes a push slide 265 vertically slidably embedded in the pull plate 261. Each group of flip plates 263 is provided with a cable 266 connected to the push slide 265. The side wall of the pull plate 261 is provided with a slide groove 268. The flip plate 263 is connected to a lever 269 that movably passes through the slide groove 268.

[0075] Specifically, when it is necessary to flip and fold each group of flip plates 263, push the lever 269 downward, thereby driving the push slide 265 to slide vertically downward relative to the pull-out plate 261, and then pull each cable 266 synchronously, and use the cable 266 to pull the flip plate 263 upward until the flip plate 263 is flipped into the corresponding receiving groove 262; then the entire pull-out plate 261 can be pulled outward, and then the lever 269 is released, and each group of flip plates 263 can be flipped to a horizontal state again under the action of gravity. At this time, the push slide 265 slides upward and resets under the traction of each cable 266, and then each group of parallel distributed filters 264 can be cleaned.

[0076] It is worth noting that the multiple layers of horizontally unfolded flip plates 263 and their filter screens 264 form a vertical stepped filtration layer, through which air penetrates step by step from bottom to top, achieving layered interception of large particle pollutants and improving the primary filtration efficiency.

[0077] By pulling down the lever 269, the push slide 265 is driven downward, thereby driving the pull rope 266 to synchronously pull all the flip plates 263 upward to flip and fold into the receiving groove 262, so that the overall thickness is compressed, creating clearance conditions for the pulling operation; after folding, the pulling plate 261 can slide out along the side of the first purification chamber 230 as a whole, without disassembling the first shell 210 or removing the filter screen 264 in sections, realizing a quick maintenance response for the primary filter element 260;

[0078] After the filter 264 is cleaned, only the lever 269 needs to be released, and the flip plate 263 will automatically unfold to a horizontal state under the action of gravity. The cable 266 is relaxed to pull the push slide 265 to slide up and reset. The single lever 269 is connected to the push slide 265 and the distributed cable 266 to achieve synchronous folding or unfolding of all flip plates 263, thereby improving operational consistency.

[0079] For further information, see Figure 11 and Figure 12, each group of flip plates 263 is provided with a flexible capsule 267 adapted to the groove 221 at one end away from the pull-out plate 261, and an airbag strip 2610 is provided on the outer wall of the pull-out plate 261 to communicate with each flexible capsule 267, and an extrusion plate 2611 is installed on the side of the airbag strip 2610 away from the pull-out plate 261, and a handle 2612 is also fixed on the pull-out plate 261, and a screw push rod 2613 is threadedly connected to the handle 2612 and abuts against the extrusion plate 2611;

[0080] Specifically, when each group of flip plates 263 flips to a horizontal state, the flexible capsule 267 at the end of each group of flip plates 263 is just embedded in the corresponding groove 221, and then the spiral top rod 2613 is rotated, and the spiral top rod 2613 is used to push the extrusion plate 2611 toward the side away from the handle 2612, thereby squeezing the airbag strip 2610, causing the gas in the airbag strip 2610 to enter each flexible capsule 267, causing each group of flexible capsule 267 to expand and come into close contact with the inner wall of the corresponding groove 221, so as to fix the flip plate 263 and the groove 221, and at the same time seal the connection gap between the flip plate 263 and the groove 221 to prevent large particles from escaping upward from the gap.

[0081] After the flexible capsule 267 is inserted into the groove 221 , the spiral push rod 2613 pushes the extrusion plate 2611 to compress the airbag strip 2610 . Gas is injected into the flexible capsule 267 to expand radially and tightly fill the gap in the groove 221 , achieving effective sealing.

[0082] A single rotation of the spiral push rod 2613 can pass through the communicating cavity of the airbag strip 2610 to drive all the flexible capsules 267 to expand synchronously, completing the rigid locking of all the flip plates 263 and the grooves 221 at one time, thus preventing inter-layer displacement.

[0083] The inflated flexible bladder 267 forms a mechanical latch, resisting vibrations of the flap 263 caused by airflow. The flexible bladder 267 maintains full contact with the inner wall of the groove 221, completely blocking the escape path of large particles through the gap. Furthermore, the elastic properties of the flexible bladder 267 adapt to wear on the inner wall of the groove 221, maintaining continuous sealing pressure and extending maintenance intervals.

[0084] Also, see Figure 9 A transition bin 240 is provided at the top of the first shell 210, and both ends of the transition bin 240 are connected to the first purification bin 230 and the second purification bin 250 respectively; an ash hopper 251 is provided at the bottom of the second purification bin 250;

[0085] Specifically, the air in the first purification chamber 230 that has been purified step by step by the primary filter element 260 enters the transition chamber 240 from the top of the first purification chamber 230, and then enters the second purification chamber 250 downward from the connection between the transition chamber 240 and the second purification chamber 250, thereby realizing the transition transfer of air and ensuring that the air flows from bottom to top in the first purification chamber 230, which is convenient for intercepting and settling large particles, while the air in the second purification chamber 250 maintains a top-to-bottom flow, improving the contact effect of the electrostatic dust collector 270, and at the same time avoiding secondary pollution of the air caused by the adsorbed residues on the electrostatic dust collector 270 falling into the ash hopper 251.

[0086] During the primary purification process, the air penetrates the multi-layer filter 264 from bottom to top in the first purification chamber 230, and uses gravity sedimentation to enhance the interception effect of large particles; during the electrostatic dust removal process, the air is turned through the transition chamber 240 and flows from top to bottom through the electrostatic dust removal element 270 in the second purification chamber 250, extending the gas-solid contact time and improving the fine particle capture rate. The ash hopper 251 at the bottom of the second purification chamber 250 directly receives the adsorbed residues shed by the electrostatic dust removal element 270. The downward airflow design ensures that the shed objects fall vertically into the ash hopper 251, completely avoiding secondary pollution caused by being entrained by the horizontal airflow. The ash hopper 251 is located outside the purified airflow path, and the collected pollutants are completely isolated from the main airflow channel. They can be directly cleaned during maintenance without affecting the cleanliness of the system.

[0087] Further, see Figure 3 and Figure 9 The electrostatic dust removal element 270 includes a packaging frame 271 fixed in the second purification chamber 250, and an electrostatic dust removal net 272 is obliquely arranged on the packaging frame 271; a dual-axis motor 313 is installed in the air duct 311, and a vibrating piece 315 is connected to the end of the dual-axis motor 313 close to the electrostatic dust removal net 272, and a blade 314 is connected to the end of the dual-axis motor 313 away from the electrostatic dust removal net 272;

[0088] Specifically, when the air flows from top to bottom in the second purification chamber 250 and passes through the electrostatic dust removal net 272 to enter the air duct 311, the air is electrostatically precipitated by the electrostatic dust removal net 272; the dual-axis motor 313 drives the blades 314 to rotate, thereby increasing the air flow rate. At the same time, the dual-axis motor 313 can drive the vibrating piece 315 to rotate, thereby periodically vibrating and knocking the inclined electrostatic dust removal net 272, so that the dust accumulated on the electrostatic dust removal net 272 continues to fall into the ash hopper 251 below, thereby realizing continuous cleaning of the electrostatic dust removal net 272 and avoiding clogging of the electrostatic dust removal net 272 and affecting the air flow rate.

[0089] The above describes the specific embodiments of the present invention, but the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the guidance of the present invention, those skilled in the art can also make many forms, all of which are protected by the present invention.

Claims

1. A purification device for a combined air-conditioning unit, arranged at the air inlet end of the air-conditioning unit (100), characterized in that: include: A first purification unit (200) comprises a first shell (210) detachably connected to the air-conditioning unit (100), an air inlet (211) being provided on a side of the first shell (210) away from the air-conditioning unit (100), a middle partition (220) being provided in the first shell (210), the middle partition (220) dividing the first shell (210) into a first purification chamber (230) and a second purification chamber (250), a primary filter element (260) being provided in the first purification chamber (230), and an electrostatic dust removal element (270) being provided in the second purification chamber (250); A second purification unit (300) is communicated with the second purification chamber (250), and comprises a second shell (310), wherein an arc-shaped partition (320) is provided in the second shell (310), wherein a separation chamber (330) is provided in the arc-shaped partition (320), wherein side chambers (340) are symmetrically provided on both sides of the separation chamber (330), and an opening (331) is provided between the separation chamber (330) and the side chamber (340), wherein two groups of vertically distributed filter cartridge modules (370) are detachably installed in the separation chamber (330), and a partition plate (360) adapted to the filter cartridge modules (370) is also rotatably provided in the separation chamber (330); An air passage (311) communicating with the second purification chamber (250) is provided on a side of the second shell (310) facing the first shell (210), an air outlet (312) is provided on a side of the second shell (310) away from the first shell (210), and both side chambers (340) are in one-way communication with the air outlet (312); One-way flexible sealing plates (380) are provided at the connection points between the two side storage bins (340) and the air outlet (312), and a second limiting block (322) adapted to the one-way flexible sealing plates (380) is provided on the arc-shaped partition (320); A rotating drum (350) is rotatably mounted at the center of the side bin (340), the partition plate (360) is fixed on the rotating drum (350), and first limiting blocks (321) adapted to the partition plate (360) are symmetrically arranged on the inner walls of both sides of the arc-shaped partition plate (320); A square slide bar (351) is axially slidably embedded in the rotating cylinder (350), the protruding end of the square slide bar (351) is connected to a rotating rod (352), the rotating rod (352) and the top of the second shell (310) are connected to a tension spring (353), the tension spring (353) is movably sleeved on the square slide bar (351), and a slot adapted to the square slide bar (351) is provided at the bottom of the side bin (340); An air pump (390) is provided on the top of the second housing (310), and air pipes (391) are connected between the air pump (390) and the filter element modules (370) on both sides.

2. A purification device for a combined air conditioning unit according to claim 1, characterized in that: The primary filter element (260) comprises a pull-out plate (261) slidably embedded in the first purification chamber (230), a plurality of accommodating grooves (262) are equidistantly provided in the pull-out plate (261), a flip plate (263) is rotatably installed in the accommodating groove (262), a filter screen (264) is provided on the flip plate (263), and a groove (221) adapted to the corresponding flip plate (263) is provided on the middle partition plate (220); and a flip driving member for driving each flip plate (263) is provided in the pull-out plate (261).

3. A purification device for a combined air conditioning unit according to claim 2, characterized in that: The flip driving member includes a push slide (265) vertically slidably embedded in the pull plate (261), and each group of flip plates (263) is provided with a cable (266) connected to the push slide (265); a sliding groove (268) is provided on the side wall of the pull plate (261), and a shift rod (269) that movably passes through the sliding groove (268) is connected to the flip plate (263).

4. A purification device for a combined air conditioning unit according to claim 2, characterized in that: Each group of flip plates (263) is provided with a flexible capsule (267) adapted to the groove (221) at one end away from the pull-out plate (261), and an airbag strip (2610) communicating with each flexible capsule (267) is provided on the outer wall of the pull-out plate (261). An extrusion plate (2611) is installed on the side of the airbag strip (2610) away from the pull-out plate (261). A handle (2612) is also fixed on the pull-out plate (261), and a spiral push rod (2613) is threadedly connected to the handle (2612) and abutted against the extrusion plate (2611).

5. The purification device for a combined air-conditioning unit according to claim 1, characterized in that: A transition bin (240) is provided at the top of the first shell (210), and two ends of the transition bin (240) are respectively connected to the first purification bin (230) and the second purification bin (250); an ash hopper (251) is provided at the bottom of the second purification bin (250).

6. A purification device for a combined air conditioning unit according to claim 5, characterized in that: The electrostatic dust removal element (270) comprises a packaging frame (271) fixed in the second purification chamber (250), and an electrostatic dust removal net (272) is obliquely arranged on the packaging frame (271); a dual-axis motor (313) is installed in the air duct (311), and a vibrating piece (315) is connected to one end of the dual-axis motor (313) close to the electrostatic dust removal net (272), and a blade (314) is connected to one end of the dual-axis motor (313) away from the electrostatic dust removal net (272).

Images