An easy-to-clean filter drier for refrigeration equipment

Abstract

The present invention belongs to the technical field of drying filters, and specifically relates to an easy-to-clean drying filter for refrigeration equipment, which includes a housing and a liquid inlet and a liquid outlet installed on both sides of the housing. Two convex plates are installed in the housing, and mesh plates 1 are slidably installed on the two convex plates. A retaining sleeve is installed on the mesh plate 1, and the retaining sleeve divides the area between the two convex plates into a transmission chamber and a drying chamber. A reduction gear set is installed in the transmission chamber, and the reduction gear set is connected to the mesh plate 1. When the cylinder of the present invention is started, the sliding rod on the mesh plate 2 slides with the inclined groove, and the mesh plate 1 drives the mesh plate 2 to rotate, so that the through holes on the mesh plate 2 gradually overlap with the through holes of the mesh plate 1, thereby increasing the flow rate of the refrigerant passing through the mesh plates 2 and 1. At the same time, under the action of the reduction gear set, the space between the drying chambers gradually increases, so that the refrigerant passes through various parts of the desiccant and carries out the small particles of the desiccant powder.

Description

Technical Field

[0001] The invention belongs to the technical field of drying filters, and in particular relates to an easy-to-clean drying filter for refrigeration equipment. Background Art

[0002] Refrigerant undergoes a gas-liquid-gas cycle in the refrigeration system. During its liquid phase, it may contain dissolved water and impurities, which a filter drier removes. For example, as the refrigerant passes through the filter drier, desiccants such as molecular sieves absorb moisture, while materials like silica gel filter out tiny impurity particles, preventing them from entering throttling devices (such as capillary tubes or expansion valves) along with the refrigerant and causing blockage and other problems.

[0003] The following problems exist during the use of the drying filter:

[0004] First, the desiccant in the filter drier is affected by the refrigerant, causing it to pulverize. These pulverized desiccant particles can then enter other components of the refrigeration system along with the refrigerant, exacerbating component wear. For example, some silica gel desiccants can gradually break into small particles under the impact of long-term refrigerant flow.

[0005] Second, under certain temperature and humidity conditions, the desiccant may absorb a certain amount of moisture and form lumps, which can seriously affect its adsorption performance. For example, in a humid environment, after the surface of the silica gel desiccant absorbs moisture, the particles may stick together and form lumps. Summary of the Invention

[0006] The purpose of the present invention is to provide a drying filter for refrigeration equipment that is easy to clean in order to solve the technical problems in the prior art.

[0007] The objectives of the present invention can be achieved through the following technical solutions: a drying filter for refrigeration equipment that is easy to clean, which includes a shell and a liquid inlet and a liquid outlet installed on both sides of the shell, two convex plates installed in the shell, mesh plates 1 are slidably installed on the two convex plates, and a retaining sleeve is installed on the mesh plate 1. The retaining sleeve cooperates with each other, and the retaining sleeve divides the area between the two convex plates into a transmission chamber and a drying chamber, a reduction gear group is installed in the transmission chamber, the reduction gear group is connected to the mesh plate 1, and the drying chamber is filled with desiccant; a cylinder is installed on the shell, the cylinder output end is connected to a ring plate, the ring plate is connected to the mesh plate 1, a conical filter is installed in the shell, and the conical filter is arranged near one end of the liquid outlet, and a collection box that opens and closes with the mesh plate 1 is installed at the center of the conical filter.

[0008] As a further optimization or improvement of this solution, the reduction gear set includes a reduction box, and rack one and rack two are respectively installed on mesh plate one, and rack one is engaged with rack two through gear one and gear two.

[0009] As a further optimization or improvement of this solution, mesh plate two is rotatably installed on mesh plate one, a rotating groove is provided on mesh plate one, a sliding rod is installed on mesh plate two, an inclined groove is installed on the inner wall of the shell, and the sliding rod passes through the rotating groove and slides with the inclined groove.

[0010] As a further optimization or improvement of this solution, a connecting rod is installed on the mesh plate, a straight groove and an annular groove are respectively opened in the aggregate box, a stacked plate is installed in the aggregate box, a slider is installed on the central axis of the stacked plate, the slider slides in conjunction with the straight groove, the connecting rod is connected to the central axis of the stacked plate, side blocks are respectively installed on both sides of the stacked plate, a telescopic rod is installed on the side block, the output end of the telescopic rod is connected to a ball head, and the ball head slides in conjunction with the annular groove.

[0011] As a further optimization or improvement of this solution, sealing rings are respectively installed on the liquid inlet and the liquid outlet.

[0012] As a further optimization or improvement of this solution, both sides of the ring plate are connected to the housing via sealing members.

[0013] As a further optimization or improvement of this solution, a guide rod is installed on the mesh plate 1, and the mesh plate 1 is slidably matched with the convex plate through the guide rod.

[0014] Beneficial effects of the present invention:

[0015] (1) The cylinder in the present invention pushes one of the mesh plates 1 to move through the ring plate, and the mesh plate 1 drives the rack 2 to move synchronously. The rack 2 drives the rack 1 to move at a reduced speed through the gear 2 and the gear 1, and the rack 1 drives the other mesh plate 1 to move synchronously. At this time, there is a speed difference between the two mesh plates 1, so that the space between the drying chambers gradually increases, and space is reserved for the desiccant inside the drying chamber to absorb moisture and expand, thereby avoiding the expansion and adhesion of the desiccant and reducing the agglomeration of the desiccant. When the two mesh plates 1 move, the two mesh plates 1 drive the desiccant in the drying chamber to move synchronously, ensuring the integrity of the desiccant and avoiding the dispersion of the desiccant.

[0016] (2) Before the cylinder of the present invention is started, the through holes on the mesh plate 2 are staggered with the through holes on the mesh plate 1. At this time, the flow rate of the refrigerant passing through the mesh plate 2 and the mesh plate 1 is reduced. When the refrigerant enters the drying chamber through the mesh plate 2 and the mesh plate 1, the impact of the refrigerant on the desiccant inside the drying chamber can be slowed down, thereby reducing the pulverization of the desiccant.

[0017] When the cylinder of the present invention is started, the cylinder drives the mesh plate 1 to move through the ring plate. When the slide rod on the mesh plate 2 slides with the inclined groove, the mesh plate 1 drives the mesh plate 2 to rotate, so that the through holes on the mesh plate 2 gradually overlap with the through holes of the mesh plate 1, thereby increasing the flow rate of the refrigerant passing through the mesh plate 2 and the mesh plate 1. At the same time, under the action of the reduction gear group, the space between the drying chambers gradually increases, so that the refrigerant passes through various parts of the desiccant, takes out the small particles of the desiccant powder, and collects them through the conical filter screen and the collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the internal overall structure of the present invention.

[0021] Figure 3 It is a front view of the internal overall structure of the present invention.

[0022] Figure 4 for Figure 3 Schematic diagram of the structure of part A.

[0023] Figure 5 Schematic diagram of the conical filter structure.

[0024] Figure 6 for Figure 5 Schematic diagram of the structure of part B.

[0025] Figure 7 This is a matching diagram of the shell and mesh plate.

[0026] Figure 8 Schematic diagram of the chute structure.

[0027] Figure 9 This is the coordination diagram of mesh plate 1 and mesh plate 2.

[0028] Figure 10 Schematic diagram of the location for the transfer slot.

[0029] Figure 11 Schematic diagram of the mesh plate structure II.

[0030] The following are marked in the figure: 1. Shell; 2. Liquid inlet; 3. Liquid outlet; 4. Reduction gear group; 401. Reducer; 402. Rack 1; 403. Gear 1; 404. Gear 2; 405. Rack 2; 5. Cylinder; 6. Ring plate; 7. Convex plate; 8. Mesh plate 1; 9. Mesh plate 2; 10. Guide rod; 11. Transmission chamber; 12. Drying chamber; 13. Stop sleeve; 14. Seal; 15. Conical filter; 16. Sealing ring; 17. Inclined groove; 18. Rotating groove; 19. Sliding rod; 20. Aggregate box; 21. Connecting rod; 22. Stacked plate; 23. Sliding block; 24. Side block; 25. Telescopic rod; 26. Ball head; 27. Straight groove; 28. Ring groove. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] See also Figures 1-8 , a drying filter for refrigeration equipment that is easy to clean, which includes a shell 1 and a liquid inlet 2 and a liquid outlet 3 installed on both sides of the shell 1, two convex plates 7 are installed in the shell 1, and mesh plates 8 are respectively slidably installed on the two convex plates 7, and a stop sleeve 13 is installed on the mesh plate 8, and the stop sleeves 13 cooperate with each other. The stop sleeve 13 divides the area between the two convex plates 7 into a transmission chamber 11 and a drying chamber 12, and a reduction gear group 4 is installed in the transmission chamber 11, and the reduction gear group 4 is connected to the mesh plate 8, and the drying chamber 12 is filled with a desiccant; a cylinder 5 is installed on the shell 1, and the output end of the cylinder 5 is connected to the ring plate 6, and the ring plate 6 is connected to the mesh plate 8, a conical filter screen 15 is installed in the shell 1, and the conical filter screen 15 is arranged near one end of the liquid outlet 3, and a collection box 20 is installed at the center of the conical filter screen 15, which opens and closes with the mesh plate 8.

[0033] Specifically, a connecting rod 21 is installed on the mesh plate 8, a straight groove 27 and an annular groove 28 are respectively opened in the aggregate box 20, a stacked plate 22 is installed in the aggregate box 20, a slider 23 is installed on the central axis of the stacked plate 22, the slider 23 slides in conjunction with the straight groove 27, the connecting rod 21 is connected to the central axis of the stacked plate 22, side blocks 24 are respectively installed on both sides of the stacked plate 22, a telescopic rod 25 is installed on the side block 24, the output end of the telescopic rod 25 is connected to the ball head 26, and the ball head 26 slides in conjunction with the annular groove 28.

[0034] Specifically, a guide rod 10 is installed on the mesh plate 8, and the mesh plate 8 is slidably matched with the convex plate 7 through the guide rod 10.

[0035] It should be noted that the area between the two raised plates 7 is a drying zone, through which the refrigerant is dried; two sets of mesh plates 8 are provided, each slidably engaging with the raised plates 7. A filter is also provided within the housing 1 to filter large particles of impurities from the refrigerant. The filter is located near the liquid inlet 2. This filter is prior art and will not be described in detail in this invention, as it does not affect the inventiveness of the present invention.

[0036] It should be noted that the bottom of the collection box 20 may be provided with a through-hole. This is to prevent the particles from flowing back out of the collection box 20 along with the refrigerant when collecting the desiccant granules. The stacked plates 22 consist of a central axis and two panels connected to the central axis. When the mesh plate 8 moves, the mesh plate 8 pushes the central axis of the stacked plates 22 toward the inside of the collection box 20 via the connecting rod 21, causing the two panels of the stacked plates 22 to fold, thereby opening the collection box 20. When the mesh plate 8 returns to its original position, the collection box 20 closes.

[0037] When the present invention is in use, the liquid inlet 2 and the liquid outlet 3 are connected to the refrigeration system through the sealing ring 16. The refrigerant enters the shell 1 through the liquid inlet 2. When the refrigerant passes through the drying chamber 12, the desiccant filled in the drying chamber 12 absorbs the moisture in the refrigerant. The cylinder 5 is started and pushes one of the mesh plates 8 to move through the ring plate 6. Figure 4 , the mesh plate 18 drives the rack 2 405 to move synchronously, the rack 2 405 drives the rack 1 402 to move at a reduced speed through the gear 2 404 and the gear 1 403, and the rack 1 402 drives the other mesh plate 18 to move synchronously. At this time, there is a speed difference between the two mesh plates 18, which gradually increases the space between the drying chambers 12, reserving space for the desiccant inside the drying chamber 12 to absorb moisture and expand, thereby preventing the desiccant from expanding and sticking, and reducing the agglomeration of the desiccant; when the two mesh plates 18 move, the two mesh plates 18 drive the desiccant in the drying chamber 12 to move synchronously, ensuring the integrity of the desiccant and preventing the desiccant from being dispersed.

[0038] In the process of mesh plate 8 moving, see Figure 6 Mesh plate 1 (8) pushes the center axis of stacked plates (22) along straight groove (27) into collection box (20) via connecting rod (21). With ball head (26) slidingly engaged with annular groove (28), stacked plates (22) begin to collapse, while telescopic rod (25) extends, ensuring that ball head (26) engages annular groove (28). As stacked plates (22) collapse, collection box (20) opens, and small particles of desiccant pulverization pass through conical filter (15) and are collected in collection box (20).

[0039] See also Figure 3-Figure 4The reduction gear set 4 includes a reduction box 401, and a rack 1 402 and a rack 2 405 are respectively installed on the mesh plate 1 8, and the rack 1 402 is engaged with the rack 2 405 through the gear 1 403 and the gear 2 404.

[0040] It should be noted that, since two groups of mesh plates 8 are provided and the mesh plates 8 are connected by the reduction gear set 4, when the cylinder 5 drives one group of mesh plates 8 to move through the ring plate 6, the mesh plates 8 drive the other group of mesh plates 8 to decelerate through the reduction gear set 4, so that the lateral space between the drying chambers 12 is slowly increased, reserving space for the desiccant inside the drying chamber 12 to absorb moisture and expand, thereby preventing the desiccant from expanding and sticking.

[0041] See also Figure 7-11 The mesh plate 1 8 is rotatably mounted with a mesh plate 2 9, a rotation groove 18 is provided on the mesh plate 1 8, a slide rod 19 is installed on the mesh plate 2 9, an inclined groove 17 is installed on the inner wall of the shell 1, and the slide rod 19 passes through the rotation groove 18 and slides with the inclined groove 17.

[0042] It should be noted that in the initial state, that is, before the cylinder 5 is activated, the through holes on the mesh plate 2 9 are interlaced with the through holes on the mesh plate 1 8. At this time, the refrigerant flow rate through the mesh plates 2 9 and 1 8 is reduced. When the refrigerant passes through the mesh plates 2 9 and 1 8 and enters the drying chamber 12, the impact of the refrigerant on the desiccant inside the drying chamber 12 is reduced, thereby reducing the desiccant pulverization phenomenon.

[0043] When the cylinder 5 is started, the cylinder 5 drives the mesh plate 1 8 to move through the ring plate 6. When the slide bar 19 on the mesh plate 2 9 slides with the inclined groove 17, the mesh plate 1 8 drives the mesh plate 2 9 to rotate, so that the through holes on the mesh plate 2 9 gradually overlap with the through holes of the mesh plate 1 8, thereby increasing the flow rate of the refrigerant through the mesh plates 2 9 and 1 8. At the same time, under the action of the reduction gear group 4, the space between the drying chambers 12 gradually increases, so that the refrigerant passes through various parts of the desiccant, bringing out the small particles of the desiccant powder, and collecting them through the conical filter 15 and the collection box 20.

[0044] Because of the speed difference between the two mesh plates 8, see Figure 3 , the mesh plate 2 9 near the liquid inlet 2 rotates slower, and the mesh plate 2 9 near the liquid outlet 3 rotates faster. Therefore, the through holes on the mesh plate 2 9 near the liquid inlet 2 overlap with the through holes on the mesh plate 1 8 at a slower speed, and the through holes on the mesh plate 2 9 near the liquid outlet 3 overlap with the through holes on the mesh plate 1 8 at a faster speed, so that the impact force of the refrigerant passing through the mesh plates 1 8 and 2 9 on the desiccant inside the drying chamber 12 slowly increases, thereby reducing the influence of the increased impact force on the desiccant.

[0045] See also Figure 1The liquid inlet 2 and the liquid outlet 3 are respectively provided with sealing rings 16 .

[0046] It should be noted that the purpose of disposing the sealing ring 16 is to enhance the sealing between the shell 1 and the refrigeration system and prevent external air from entering the shell 1 .

[0047] See also Figure 2-Figure 3 The two sides of the ring plate 6 are connected to the housing 1 through sealing members 14 .

[0048] It should be noted that the ring plate 6 is connected to the housing 1 via the seal 14 to ensure that the interior of the housing 1 is sealed, thereby preventing external moisture from entering the interior of the housing 1 .

[0049] Working principle of the present invention: When the present invention is in use, the liquid inlet 2 and the liquid outlet 3 are connected to the refrigeration system through the sealing ring 16. The refrigerant enters the shell 1 through the liquid inlet 2. When the refrigerant passes through the drying chamber 12, the desiccant filled in the drying chamber 12 absorbs the moisture in the refrigerant; the cylinder 5 is started, and the cylinder 5 pushes one of the mesh plates 8 to move through the ring plate 6. Figure 4 , the mesh plate 18 drives the rack 2 405 to move synchronously, the rack 2 405 drives the rack 1 402 to move at a reduced speed through the gear 2 404 and the gear 1 403, and the rack 1 402 drives the other mesh plate 18 to move synchronously. At this time, there is a speed difference between the two mesh plates 18, so that the space between the drying chambers 12 gradually increases, reserving space for the desiccant inside the drying chamber 12 to absorb moisture and expand, thereby preventing the desiccant from expanding and sticking, and reducing the desiccant agglomeration.

[0050] Specifically, in the initial state, that is, before the cylinder 5 is activated, the through holes on the mesh plate 2 9 are interlaced with the through holes on the mesh plate 1 8. At this time, the refrigerant flow rate through the mesh plates 2 9 and 1 8 is reduced. When the refrigerant passes through the mesh plates 2 9 and 1 8 and enters the drying chamber 12, the impact of the refrigerant on the desiccant inside the drying chamber 12 can be reduced, thereby reducing the desiccant pulverization phenomenon.

[0051] When the cylinder 5 is started, the cylinder 5 drives the mesh plate 1 8 to move through the ring plate 6. When the slide bar 19 on the mesh plate 2 9 slides with the inclined groove 17, the mesh plate 1 8 drives the mesh plate 2 9 to rotate, so that the through holes on the mesh plate 2 9 gradually overlap with the through holes of the mesh plate 1 8, thereby increasing the flow rate of the refrigerant through the mesh plates 2 9 and 1 8. At the same time, under the action of the reduction gear group 4, the space between the drying chambers 12 gradually increases, so that the refrigerant passes through various parts of the desiccant, bringing out the small particles of the desiccant powder, and collecting them through the conical filter 15 and the collection box 20.

[0052] In the process of mesh plate 8 moving, see Figure 6Mesh plate 1 (8) pushes the center axis of stacked plates (22) along straight groove (27) into collection box (20) via connecting rod (21). With ball head (26) slidingly engaged with annular groove (28), stacked plates (22) begin to collapse, while telescopic rod (25) extends, ensuring that ball head (26) engages annular groove (28). As stacked plates (22) collapse, collection box (20) opens, and small particles of desiccant pulverization pass through conical filter (15) and are collected in collection box (20).

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. An easy-to-clean filter drier for refrigeration equipment, characterized by: The invention comprises a shell (1) and a liquid inlet (2) and a liquid outlet (3) installed on both sides of the shell (1). Two convex plates (7) are installed in the shell (1). A mesh plate (8) is slidably installed on each of the two convex plates (7). A stopper (13) is installed on the mesh plate (8). The stopper sleeves (13) cooperate with each other. The stopper sleeve (13) divides the area between the two convex plates (7) into a transmission chamber (11) and a drying chamber (12). A reduction gear set (4) is installed in the transmission chamber (11). ), the reduction gear set (4) is connected to the mesh plate (8), and the drying chamber (12) is filled with a desiccant; a cylinder (5) is installed on the housing (1), the output end of the cylinder (5) is connected to the ring plate (6), the ring plate (6) is connected to the mesh plate (8), a conical filter (15) is installed in the housing (1), and the conical filter (15) is arranged near one end of the liquid outlet (3), and a collecting box (20) is installed at the center of the conical filter (15) which opens and closes with the mesh plate (8); The reduction gear set (4) includes a reduction box (401), and a rack (402) and a rack (405) are respectively installed on the mesh plate (8), and the rack (402) is meshed with the rack (405) through the gear (403) and the gear (404). The cylinder (5) pushes one of the mesh plates (8) to move through the ring plate (6), and the mesh plate (8) drives the rack (405) to move synchronously. The rack (405) drives the rack (402) to move at a reduced speed through the gear (404) and the gear (403), and the rack (402) drives the other mesh plate (8) to move synchronously. At this time, there is a speed difference between the two mesh plates (8), so that the space between the drying chambers (12) gradually increases.

2. The easy-to-clean filter drier for refrigeration equipment according to claim 1, characterized in that: The mesh plate 1 (8) is rotatably mounted with a mesh plate 2 (9), the mesh plate 1 (8) is provided with a rotation groove (18), the mesh plate 2 (9) is mounted with a slide bar (19), an inclined groove (17) is mounted on the inner wall of the housing (1), and the slide bar (19) passes through the rotation groove (18) and is slidably engaged with the inclined groove (17).

3. The easy-to-clean filter drier for refrigeration equipment according to claim 1, characterized in that: A connecting rod (21) is installed on the mesh plate (8), a straight groove (27) and an annular groove (28) are respectively opened in the aggregate box (20), a stacked plate (22) is installed in the aggregate box (20), a slider (23) is installed on the central axis of the stacked plate (22), the slider (23) and the straight groove (27) are slidably matched, the connecting rod (21) is connected to the central axis of the stacked plate (22), side blocks (24) are respectively installed on both sides of the stacked plate (22), a telescopic rod (25) is installed on the side block (24), the output end of the telescopic rod (25) is connected to the ball head (26), and the ball head (26) and the annular groove (28) are slidably matched.

4. The easy-to-clean filter drier for refrigeration equipment according to claim 1, characterized in that: Sealing rings (16) are respectively installed on the liquid inlet (2) and the liquid outlet (3).

5. The easy-to-clean filter drier for refrigeration equipment according to claim 1, characterized in that: Both sides of the ring plate (6) are connected to the housing (1) via sealing elements (14).

6. The easy-to-clean filter drier for refrigeration equipment according to claim 1, characterized in that: A guide rod (10) is installed on the mesh plate (8), and the mesh plate (8) is slidably matched with the convex plate (7) through the guide rod (10).

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