A multi-channel air filtering mechanism for heat recovery of a direct expansion air conditioner

Abstract

The utility model relates to a kind of multi-channel air filtering mechanism for air conditioner direct expansion machine heat recovery, including installation base, the left side top of installation base is provided with air conditioner direct expansion machine, the right side top of installation base is provided with hot gas filter box, the left side inside of hot gas filter box is fixedly installed with suction fan.The multi-channel air filtering mechanism for air conditioner direct expansion machine heat recovery, by setting dismounting mechanism, the quick dismounting and maintenance of filter plate can be realized, the operation difficulty and time cost are greatly reduced, when using, rotating rotating lever, make first bearing guarantee rotating lever stable rotation, and drive first gear and second gear meshing transmission, further make movable rod through second bearing drive moving block carry out threaded movement, moving block drives auxiliary rod and insert rod synchronous movement, auxiliary rod provides orientation for moving plate, insert rod moves and separates from slide strip, make slide strip and fixed plate not in fixed, and pull filter plate and make it move through slide strip, separate from fixed plate.

Description

Technical Field

[0001] This utility model relates to the technical field of air conditioning heat recovery equipment, specifically a multi-channel air filtration mechanism for heat recovery of air conditioning direct expansion machines. Background Technology

[0002] During the operation of the heat recovery system of the air conditioning direct expansion unit, outside air carries pollutants such as dust, impurities, and fibers into the equipment. The air filtration mechanism in the existing technology is mostly a single-channel design, which has low filtration efficiency. Moreover, after long-term use, pollutants are prone to clogging the filter channel, resulting in a decrease in heat recovery efficiency and affecting the overall operating performance of the air conditioning direct expansion unit.

[0003] Meanwhile, the disassembly and assembly process of filter components in traditional filtration mechanisms is complicated and requires the use of special tools. The operation is time-consuming and labor-intensive, which not only increases the maintenance difficulty for staff, but also prolongs the equipment downtime and further reduces the operational stability and economy of the air conditioning system. In addition, some filtration mechanisms only have 1-2 layers of filter structure, which cannot filter pollutants of different particle sizes in stages, and are prone to incomplete filtration. This can cause wear and tear on the core components of heat recovery and shorten the service life of the equipment. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-channel air filtration mechanism for heat recovery in air conditioning direct expansion units. It features multi-channel diversion filtration, quick disassembly and assembly of filter components, and graded high-efficiency filtration. This solves the problems of low single-channel filtration efficiency, inconvenient disassembly and assembly of filter components, and incomplete filtration of pollutants in existing filtration mechanisms, which lead to decreased heat recovery efficiency and shortened equipment lifespan.

[0005] To achieve the aforementioned goals of multi-channel diversion filtration, rapid disassembly and assembly of filter components, and graded high-efficiency filtration, this utility model provides the following technical solution: A multi-channel air filtration mechanism for heat recovery of an air conditioning direct expansion unit, comprising a mounting base, an air conditioning direct expansion unit disposed on the top left side of the mounting base, a hot air filter box disposed on the top right side of the mounting base, a suction fan fixedly installed inside the left side of the hot air filter box, an air suction pipe extending to the right side of the air conditioning direct expansion unit fixedly installed on the left side of the hot air filter box, and a disassembly and assembly mechanism disposed inside the hot air filter box and to the right of the suction fan, wherein a first filter plate, a second filter plate, a third filter plate, and a fourth filter plate are disposed on the disassembly and assembly mechanism; The disassembly and assembly mechanism includes a fixed plate. Fixed plates are fixedly installed on the top and bottom of the hot air filter box. Sliding strips that are slidably connected to the fixed plates are fixedly installed on the top and bottom of the first, second, third, and fourth filter plates. A rotating rod extending into the fixed plate is movably installed on its exterior. A first bearing connected to the rotating rod is fixedly installed on the inner wall of the fixed plate. A first gear is fixedly installed at one end of the rotating rod, located inside the fixed plate. Second bearings are fixedly installed on both inner walls of the fixed plate. A movable rod is provided between the two second bearings. A second gear meshing with the first gear is fixedly installed on the exterior of the movable rod. A moving block is movably installed on the exterior of the movable rod. An auxiliary rod extending into the inner wall of the fixed plate is fixedly installed at one end of the moving block. An insert rod connected to the sliding strip is fixedly installed on one side of the moving block.

[0006] Preferably, the first filter plate, the second filter plate, the third filter plate and the fourth filter plate are installed sequentially from left to right, and a pipe is fixedly installed on the right side of the hot air filter box.

[0007] Preferably, a sealing door is hinged to the front side of the hot air filter box, and a controller is fixedly installed on the outer surface of the front side of the sealing door.

[0008] Preferably, the opposing surfaces of the two fixing plates are provided with grooves that are adapted to the slide bar.

[0009] Preferably, the movable rod is provided with two sets of threaded rings on its exterior, and the two sets of threaded rings are bidirectional threads.

[0010] Preferably, the movable block has a threaded hole inside that is threaded to connect with the threaded ring.

[0011] Preferably, the inner wall of the fixing plate is provided with an auxiliary groove that is adapted to the auxiliary rod.

[0012] Preferably, the slide bar is a "T" shaped bar, and the slide bar has a socket adapted to the insertion rod.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects: This multi-channel air filtration mechanism for heat recovery in air conditioning direct expansion units features a modular assembly and disassembly system that enables rapid disassembly and maintenance of the filter plates. This significantly reduces operational difficulty and time costs. During operation, rotating the rotating rod ensures stable rotation of the rod via the first bearing, which in turn drives the first and second gears to mesh. This causes the movable rod to move via the second bearing, moving the moving block in a threaded motion. The moving block then moves the auxiliary rod and the insert rod synchronously. The auxiliary rod guides the moving plate, and the insert rod disengages from the slide bar, freeing the slide bar from its fixed position. This pulls the filter plate, causing it to move along the slide bar and detach from the fixed plate. This process requires no special tools; the engagement and disengagement of the insert rod and filter plate can be completed simply by rotating the rod. This solves the problem of traditional filter mechanisms requiring the disassembly of multiple fixed components and cumbersome operations, ensuring that staff can quickly replace or clean the filter plates, reducing equipment downtime for maintenance, and improving overall operational efficiency.

[0014] This multi-channel air filtration mechanism for heat recovery in air conditioning direct expansion units constructs a four-stage filtration system by setting up a first, second, third, and fourth filter plate. This system accurately intercepts pollutants of different particle sizes in the air, ensuring the cleanliness of the air entering the heat recovery components of the air conditioning direct expansion unit. In actual operation, after the air to be filtered is drawn into the hot air filter box by the suction fan, it first passes through the first filter plate to intercept large-particle dust, fibers, and other impurities. The remaining small-particle pollutants are then filtered step by step through the second and third filter plates, and finally, the fourth filter plate intercepts tiny particles and suspended impurities. The pore size of the four filter plates decreases in a gradient, which avoids the problems of easy clogging and low filtration efficiency of single-stage filter plates, and extends the service life of the overall filter assembly through staged interception. At the same time, the clean air is transported and utilized through pipes, which can reduce the wear and clogging of heat exchange components by pollutants, ensure stable heat recovery efficiency, and extend the overall service life of the air conditioning direct expansion unit. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a sectional view of a partial disassembly and assembly mechanism of this utility model; Figure 4 The structure of this utility model Figure 3 Enlarged view of point A in the middle.

[0016] In the diagram: 1. Mounting base; 2. Air conditioner direct expansion unit; 3. Hot air filter box; 4. Fan; 5. Suction pipe; 6. Disassembly and assembly mechanism; 601. Fixing plate; 602. Sliding bar; 603. Rotating rod; 604. First bearing; 605. First gear; 606. Second bearing; 607. Movable rod; 608. Second gear; 609. Moving block; 610. Auxiliary rod; 611. Insert rod; 7. First filter plate; 8. Second filter plate; 9. Third filter plate; 10. Fourth filter plate; 11. Pipe; 12. Sealing door; 13. Controller. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This embodiment provides a multi-channel air filtration mechanism for heat recovery of an air conditioning direct expansion unit, including a mounting base 1. An air conditioning direct expansion unit 2 is mounted on the top left side of the mounting base 1, and a hot air filter box 3 is mounted on the top right side of the mounting base 1. A suction fan 4 is fixedly mounted inside the left side of the hot air filter box 3, and a suction pipe 5 extending to the right side of the air conditioning direct expansion unit 2 is fixedly mounted on the left side of the hot air filter box 3. A disassembly and assembly mechanism 6 is located inside the hot air filter box 3 and to the right of the suction fan 4. A first filter plate 7, a second filter plate 8, a third filter plate 9, and a fourth filter plate 10 are mounted on the disassembly and assembly mechanism 6.

[0019] In the implementation of the case, the disassembly and assembly mechanism 6 includes a fixed plate 601. The fixed plate 601 is fixedly installed on the top and bottom of the hot air filter box 3. Sliding strips 602, which are slidably connected to the fixed plate 601, are fixedly installed on the top and bottom of the first filter plate 7, the second filter plate 8, the third filter plate 9, and the fourth filter plate 10. A rotating rod 603 extending into the fixed plate 601 is movably installed on its exterior. A first bearing 604 connected to the rotating rod 603 is fixedly installed on the inner wall of the fixed plate 601. One end of the rotating rod 603 is located on the fixed plate 601. A first gear 605 is fixedly installed inside the fixed plate 601. Second bearings 606 are fixedly installed on both inner walls of the fixed plate 601. A movable rod 607 is provided between the two second bearings 606. A second gear 608 that meshes with the first gear 605 is fixedly installed on the outside of the movable rod 607. A movable block 609 is movably installed on the outside of the movable rod 607. An auxiliary rod 610 extending into the inner wall of the fixed plate 601 is fixedly installed at one end of the movable block 609. An insert rod 611 connected to the slide bar 602 is fixedly installed on one side of the movable block 609.

[0020] The rotation of the rotating rod 603 drives the first gear 605 to rotate. Through the meshing relationship between the first gear 605 and the second gear 608, the power is transmitted to the movable rod 607, which rotates stably under the support of the second bearing 606. When the movable rod 607 rotates, its external bidirectional thread drives the moving block 609 to move along the thread direction. The auxiliary rod 610 slides synchronously in the auxiliary groove, providing guidance for the moving block 609. This ensures that the moving block 609 drives the insertion rod 611 to accurately insert into or disengage from the insertion hole of the slide bar 602, thereby realizing the quick fixing or separation of the filter plate and the fixed plate 601 without the need for special tools, greatly simplifying the assembly and disassembly process.

[0021] In the implementation of the case, the first filter plate 7, the second filter plate 8, the third filter plate 9 and the fourth filter plate 10 are installed from left to right in sequence, and the pipe 11 is fixedly installed on the right side of the hot air filter box 3. In this process, by arranging the four-stage filter plates in order from left to right, the air entering the hot air filter box 3 passes through filter plates with different pore sizes in sequence. The first filter plate intercepts large-particle impurities, and the subsequent filter plates gradually filter smaller-particle pollutants, thus achieving graded filtration. At the same time, the pipe 11 can filter the clean air after the four-stage filtration.

[0022] In the implementation of the case, a sealing door 12 is hinged to the front side of the hot air filter box 3, and a controller 13 is fixedly installed on the outer surface of the front side of the sealing door 12. The hinged design of the sealing door 12 allows staff to easily open the door to inspect, replace, or maintain the filter plates and disassembly mechanism 6 inside the hot air filter box 3. When closed, it ensures the airtightness of the box and prevents unfiltered air leakage. The controller 13 can monitor parameters such as the operating status of the suction fan 4 and the degree of clogging of the filter plates in real time. When the parameters are abnormal, it will issue a prompt in time, which will facilitate the staff to deal with the problem in time and ensure the stable operation of the mechanism.

[0023] In the implementation of the case, the opposite surfaces of the two fixed plates 601 are provided with sliding grooves that are compatible with the slide bar 602. The movable rod 607 is provided with two sets of threaded rings on the outside, and the two sets of threaded rings are bidirectional threads. The movable block 609 is provided with threaded holes that are threadedly connected to the threaded rings. The sliding groove on the fixed plate 601 and the sliding strip 602 are matched to allow the filter plate to slide smoothly along the groove during installation or disassembly, avoiding deviation and ensuring installation accuracy. The bidirectional thread of the movable rod 607 and the threaded hole of the moving block 609 are matched to allow the two moving blocks 609 to move simultaneously in opposite or the same direction when the movable rod 607 rotates, driving the insertion rod 611 to move synchronously, ensuring that the fixing or separation of the top and bottom of the filter plate is carried out synchronously, improving the efficiency and stability of disassembly and assembly.

[0024] In the implementation of the case, the inner wall of the fixed plate 601 is provided with an auxiliary groove that matches the auxiliary rod 610, the slide bar 602 is a "T" shaped bar, and the slide bar 602 is provided with a insertion hole that matches the insertion rod 611. The auxiliary groove and auxiliary rod 610 are matched to guide the movement of the moving block 609, ensuring that the moving block 609 can move smoothly in a straight line when the movable rod 607 rotates, so that the insertion rod 611 is accurately aligned with the insertion hole on the slide bar 602. The "T"-shaped slide bar 602 cooperates with the sliding groove on the fixed plate 601, which not only ensures the sliding stability of the filter plate during installation or disassembly, but also prevents the filter plate from detaching from the fixed plate 601 in the vertical direction. The insertion hole on the slide bar 602 is matched with the insertion rod 611. When the insertion rod 611 is inserted into the insertion hole, the filter plate can be firmly fixed on the fixed plate 601, realizing the quick installation of the filter plate. Conversely, it can be quickly disassembled, which is convenient for replacing or cleaning the filter plate.

[0025] In the implementation of the case, the mounting base 1 is used for overall support and positioning of the equipment. It supports the weight of the air conditioning direct expansion unit 2 and the hot air filter box 3 through its own structural strength, ensuring that the two maintain a stable position during operation and avoiding component displacement or loosening of connections due to vibration. It also directly supports the air conditioning direct expansion unit 2 and the hot air filter box 3, providing a fixed installation foundation for the two and ensuring the positional stability of connecting components such as the air intake pipe 5.

[0026] In the case implementation, the air conditioning direct expansion unit 2 is the core heat recovery equipment. As the core component of the air conditioning system, it generates hot air during operation and needs to achieve energy reuse through the heat recovery process. Its right side is connected to the suction pipe 5 to provide the hot air source to be processed to the hot air filter box 3. It connects to the hot air filter box 3 through the suction pipe 5 to send the hot air it generates to the filtration mechanism. After the air is filtered, it receives the clean air returned through the pipe 11 for heat recovery.

[0027] In the implementation of the case, the hot air filter box 3 is used for the filtration space to carry and seal, providing a closed air filtration cavity to accommodate the suction fan 4, the disassembly and assembly mechanism 6 and the filter plates of each level, to prevent unfiltered air leakage, and to ensure that the air passes through the filtration process according to the preset path. The suction fan 4, the fixing plate 601 and other components are installed inside. The left side is connected to the air conditioning direct expansion unit 2 through the suction pipe 5, and the right side outputs clean air through the pipe 11. The front side is hinged to the sealing door 12.

[0028] In the implementation of the case, the suction fan 4 is pneumatically driven. When powered on, it generates negative pressure, which draws the hot air in the air conditioner direct expansion unit 2 into the hot air filter box 3 through the suction pipe 5, and pushes the air through the filter plates of each stage in sequence, providing power for the air filtration process. It is located inside the left side of the hot air filter box 3, with the left side corresponding to the inlet of the suction pipe 5 and the right side being the filter plates of each stage. It uses its own power to make the air flow along the path of "suction pipe → filter plate → pipe".

[0029] When implementing this procedure, please follow these steps: 1) First, insert each filter plate (first filter plate 7, second filter plate 8, third filter plate 9, fourth filter plate 10) into the groove on the fixed plate 601 inside the hot air filter box 3 by aligning the "T"-shaped slide bars 602 at the top and bottom of the filter plate with the groove. Then, slide the slide bars 602 along the groove to the appropriate position. 2) Then rotate the rotating rod 603 of the disassembly and assembly mechanism. The rotating rod 603 drives the first gear 605 to rotate. The first gear 605 meshes with the second gear 608, which in turn drives the movable rod 607 to rotate under the support of the second bearing 606. 3) As the movable rod 607 rotates, its external bidirectional thread drives the moving block 609 to move axially along the movable rod 607. The auxiliary rod 610 on the moving block 609 slides synchronously in the auxiliary groove of the fixed plate 601, ensuring that the moving block 609 drives the insertion rod 611 to accurately insert into the insertion hole on the slide bar 602, thus fixing the filter plate on the fixed plate. 4) Finally, check whether the sealing door 12 is sealed well, start the suction fan 4, so that the hot air generated by the air conditioner direct expansion unit 2 enters the hot air filter box 3 through the suction pipe 5, and after passing through the filter plates of each stage, it goes through the pipe 11.

[0030] In summary, the multi-channel air filtration mechanism for heat recovery in air conditioning direct expansion units, by setting up the disassembly and assembly mechanism 6, can realize the rapid disassembly and maintenance of the filter plate, greatly reducing the difficulty of operation and time cost. In use, rotating the rotating rod 603 ensures stable rotation of the first bearing 604, and drives the first gear 605 and the second gear 608 to mesh and transmit power. This causes the movable rod 607 to drive the moving block 609 to move threadedly through the second bearing 606. The moving block 609 drives the auxiliary rod 610 and the insertion rod 611 to move synchronously. The auxiliary rod 610 provides guidance for the moving plate 609. The insertion rod 611 moves and disengages from the slide bar 602, so that the slide bar 602 is no longer fixed to the fixed plate 601. It also pulls the filter plate to move through the slide bar 602 and disengage from the fixed plate 601. This process does not require special tools. The engagement or disengagement of the insertion rod 611 and the filter plate can be completed by simply rotating the rod. This solves the problem that the disassembly and assembly of traditional filter mechanisms requires the disassembly of multiple fixed parts and is cumbersome. It ensures that the staff can quickly replace or clean the filter plate, reduce equipment downtime for maintenance, and improve overall operating efficiency.

[0031] Furthermore, by setting up a first filter plate 7, a second filter plate 8, a third filter plate 9, and a fourth filter plate 10, a four-stage filtration system is constructed to accurately intercept pollutants of different particle sizes in the air, ensuring the cleanliness of the air entering the heat recovery component of the air conditioning direct expansion unit 2. In actual operation, after the air to be filtered is drawn into the hot air filter box 3 by the suction fan 4, it first passes through the first filter plate 7 to intercept large-particle dust, fibers, and other impurities. The remaining small-particle pollutants are then filtered step by step through the second filter plate 8 and the third filter plate 9, and finally the fourth filter plate 10 intercepts tiny particles and suspended impurities. The pore size of the four-stage filter plates decreases in a gradient, which avoids the problems of easy clogging and low filtration efficiency of single-stage filter plates, and extends the service life of the overall filter assembly through staged interception. At the same time, the clean air is transported and utilized through the pipe 11, which can reduce the wear and clogging of the heat exchange components by pollutants, ensure stable heat recovery efficiency, and extend the overall service life of the air conditioning direct expansion unit.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-channel air filtration mechanism for heat recovery in an air conditioning direct expansion unit, comprising a mounting base (1), characterized in that: An air conditioning direct expansion unit (2) is provided on the top left side of the mounting base (1), and a hot air filter box (3) is provided on the top right side of the mounting base (1). A suction fan (4) is fixedly installed inside the left side of the hot air filter box (3). A suction pipe (5) extending to the right side of the air conditioning direct expansion unit (2) is fixedly installed on the left side of the hot air filter box (3). A disassembly and assembly mechanism (6) is provided inside the hot air filter box (3) and to the right of the suction fan (4). A first filter plate (7), a second filter plate (8), a third filter plate (9), and a fourth filter plate (10) are provided on the disassembly and assembly mechanism (6). The disassembly and assembly mechanism (6) includes a fixing plate (601). The fixing plate (601) is fixedly installed on the top and bottom of the hot air filter box (3). The top and bottom of the first filter plate (7), the second filter plate (8), the third filter plate (9), and the fourth filter plate (10) are fixedly installed with slide bars (602) that are slidably connected to the fixing plate (601). A rotating rod (603) extending into the interior of the fixing plate (601) is movably installed on the outside of the fixing plate (601). A first bearing (604) connected to the rotating rod (603) is fixedly installed on the inner wall of the fixing plate (601). One end of the rotating rod (603) is located inside the fixing plate (601). A first gear (605) is fixedly installed on the fixed plate (601). Second bearings (606) are fixedly installed on both inner walls of the fixed plate (601). A movable rod (607) is provided between the two second bearings (606). A second gear (608) that meshes with the first gear (605) is fixedly installed on the outside of the movable rod (607). A movable block (609) is movably installed on the outside of the movable rod (607). An auxiliary rod (610) extending into the inner wall of the fixed plate (601) is fixedly installed at one end of the movable block (609). A plug rod (611) connected to the slide bar (602) is fixedly installed on one side of the movable block (609).

2. The multi-channel air filtration mechanism for heat recovery in an air conditioning direct expansion unit according to claim 1, characterized in that: The first filter plate (7), the second filter plate (8), the third filter plate (9) and the fourth filter plate (10) are installed from left to right, and a pipe (11) is fixedly installed on the right side of the hot air filter box (3).

3. A multi-channel air filtration mechanism for heat recovery in an air conditioning direct expansion unit according to claim 1, characterized in that: The front side of the hot air filter box (3) is hinged with a sealing door (12), and a controller (13) is fixedly installed on the outer surface of the front side of the sealing door (12).

4. A multi-channel air filtration mechanism for heat recovery in an air conditioning direct expansion unit according to claim 1, characterized in that: The two fixed plates (601) are provided with grooves on their opposite surfaces that are adapted to the slide bar (602).

5. A multi-channel air filtration mechanism for heat recovery in an air conditioning direct expansion unit according to claim 1, characterized in that: The movable rod (607) is provided with two sets of threaded rings on its outside, and the two sets of threaded rings are bidirectional threads.

6. A multi-channel air filtration mechanism for heat recovery in an air conditioning direct expansion unit according to claim 5, characterized in that: The movable block (609) has a threaded hole inside that is threaded to connect with the threaded ring.

7. A multi-channel air filtration mechanism for heat recovery in an air conditioning direct expansion unit according to claim 1, characterized in that: The inner wall of the fixing plate (601) is provided with an auxiliary groove that is compatible with the auxiliary rod (610).

8. A multi-channel air filtration mechanism for heat recovery in an air conditioning direct expansion unit according to claim 1, characterized in that: The slide bar (602) is a "T" shaped bar, and the slide bar (602) has a socket adapted to the insertion rod (611).

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