A water collection and easy-to-clean air filtration device for a fully premixed wall-hung boiler

Abstract

This utility model discloses a water collection and easy-to-clean air filtration device for a fully premixed wall-hung boiler, comprising: a housing, an air filtration area on the left side of the housing, a water collection area on the right side of the housing, a filter component on the air filtration area, a connecting pipe in the middle of the water collection area, a drain on one side of the water collection area, and a connecting mechanism on the air filtration area that can be connected and fixed to the filter component. Compared with the prior art, the filter screen can be removed without disassembling the machine front cover and loosening a single screw, reducing the user's maintenance and cleaning costs and greatly facilitating installation, disassembly and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of wall-hung boiler technology, and in particular to a water collection and easy-to-clean air filtration device for a fully premixed wall-hung boiler. Background Technology

[0002] Currently, due to stricter emission and energy efficiency standards, most domestic gas-fired wall-hung boiler manufacturers are developing and selling fully premixed condensing wall-hung boilers.

[0003] A fully premixed condensing wall-hung boiler premixes the fuel gas and air required for combustion. A fan blows the mixture to the burner, where ignition is controlled by a control panel. The high-temperature, high-humidity flue gas transfers heat to the outer surface of the heat exchanger coils. The heat exchanger absorbs the heat and transfers it to the circulating water inside the coils. The circulating water is then pumped to transfer the heat to the radiators in the room. The room absorbs the heat from the radiators, raising its temperature and providing heating for the user. Because the excess air coefficient of fully premixed combustion is between 1.1 and 1.3, the flue gas is hot and humid with a very low dew point. Water vapor in the flue gas easily condenses on the heat exchanger surface, releasing latent heat of vaporization. The condensing section of the heat exchanger absorbs this latent heat, keeping the boiler's exhaust temperature between 50-70°C, resulting in significantly higher thermal efficiency than ordinary wall-hung boilers.

[0004] However, due to the low exhaust temperature, water vapor in the air required for combustion easily condenses into water inside the coaxial flue when it enters the machine's internal cavity. Additionally, during rain or snow, a small amount of rainwater may enter the combustion chamber, damaging internal parts. Therefore, a rainwater tray needs to be designed at the air inlet to drain the water to the outside of the machine. Furthermore, since the air required for combustion must pass through a fan before entering the combustion chamber, dust and smog in the air easily accumulate on the fan impeller and the gaps between the coils inside the heat exchanger, causing blockage and preventing the wall-hung boiler from operating normally. Therefore, an air filter device also needs to be added at the air inlet.

[0005] In existing technologies, the rainwater tray and air filter are designed independently and installed inside the machine. Disassembly and cleaning require loosening screws and opening the machine's front cover to remove them, resulting in high maintenance costs and inconvenient installation and disassembly. Summary of the Invention

[0006] The purpose of this invention is to provide a water collection and easy-to-clean air filtration device for a fully premixed wall-hung boiler, which can solve at least one of the above-mentioned technical problems. The technical solution of this invention is as follows:

[0007] A water collection and easy-to-clean air filtration device for a fully premixed wall-hung boiler includes: a housing, an air filtration area on the left side of the housing, a water collection area on the right side of the housing, a filter component on the air filtration area, a connecting pipe in the middle of the water collection area, a drain on one side of the water collection area, and a connecting mechanism on the air filtration area that can be connected and fixed to the filter component.

[0008] Furthermore, the air filtration area includes a connecting shell disposed on the left side of the housing, the connecting shell extending downward to form a taper, a slot being provided on the left side of the connecting shell, and insertion slots being provided on the front and rear sides of the slot.

[0009] Furthermore, the water collection area includes a recessed groove on the shell, a partition plate is provided adjacent to the side of the connecting shell and fixed on the groove, the connecting pipe opening is provided in the groove, and a frustum is provided below the connecting pipe opening and connected to the groove.

[0010] Furthermore, the filter component includes a plug-in frame that is inserted into the plug-in slot, a cover plate is provided above the plug-in frame, a handle is provided on the cover plate, and multiple stainless steel filter screens are fixed on the plug-in frame, wherein each stainless steel filter screen can be fixed individually on the plug-in frame.

[0011] Furthermore, the drainage section includes a drainage pipe connected to the right side of the front of the groove, and a plurality of isolation posts are provided at intervals around the drainage pipe and fixed on the groove.

[0012] Furthermore, the connecting mechanism includes guide grooves disposed on the front and rear sides of the connecting shell, a positioning plate fixed in the center of each guide groove, arc-shaped locking blocks disposed in each guide groove and on both sides of the adjacent positioning plate, fastening plates symmetrically fixed on the front and rear sides of each cover plate, and an arc-shaped locking groove disposed in the center of each fastening plate.

[0013] Preferably, multiple reinforcing ribs are fixed at intervals along the edge of the groove and the outer wall of the housing.

[0014] In summary, the advantages of this utility model over the prior art are:

[0015] This utility model provides a water collection and easy-to-clean air filtration device for a fully premixed wall-hung boiler. During installation, the casing is first installed inside the boiler using screws. In daily use, water or rainwater is discharged into the water collection area through a coaxial flue, and the water in the collection area is discharged through the drain. Meanwhile, the air passing through the heat exchanger and fan is transported towards the air filtration area. During transport, the filter element filters dust and smog from the air. When the user needs to clean the filter element, they only need to pull it out for cleaning. The filter element is installed and removed through a connecting mechanism. Compared with the prior art, the filter screen can be removed without disassembling the machine casing or loosening a single screw, reducing the user's maintenance and cleaning costs and greatly facilitating installation, disassembly, and maintenance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0017] Figure 2 This is a partial cross-sectional view of the present invention.

[0018] Figure 3 This is an exploded view of the present invention.

[0019] Figure 4 This utility model Figure 2 Enlarged schematic diagram at point A-1.

[0020] Explanation of reference numerals in the attached drawings: 1. Shell; 2. Air filtration area; 3. Water collection area; 4. Filter component; 5. Connecting pipe port; 6. Drainage section; 7. Connecting mechanism; 21. Connecting shell; 22. Slot; 23. Insertion slot; 31. Groove; 32. Partition plate; 33. Frustum; 41. Insertion frame; 42. Cover plate; 43. Handle; 44. Stainless steel filter screen; 61. Drainage pipe; 62. Isolation column; 71. Guide groove; 72. Positioning plate; 73. Arc-shaped locking block; 74. Fastening plate; 75. Arc-shaped locking groove; 11. Reinforcing rib. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1 to 4 The device shown is a water collection and easy-to-clean air filtration device for a fully premixed wall-hung boiler, characterized in that it includes: a housing 1, an air filtration area 2 on the left side of the housing 1, a water collection area 3 on the right side of the housing 1, a filter component 4 on the air filtration area 2, a connecting pipe port 5 in the middle of the water collection area 3, a drain section 6 on one side of the water collection area 3, and a connecting mechanism 7 on the air filtration area 2 that can be connected and fixed to the filter component 4.

[0023] The above-described premixed wall-hung boiler uses a water collection and easy-to-clean air filtration device. During installation, the housing 1 is first installed inside the boiler using screws. In daily use, water or rainwater is discharged into the water collection area 3 through the coaxial flue. Simultaneously, the water in the water collection area 3 is discharged through the drain 6. The air, after passing through the heat exchanger and fan, is transported towards the air filtration area 2. During transport, the air is filtered by the filter element 4 to remove dust and smog. When the user needs to clean the filter element 4, they only need to pull it out for cleaning. The filter element 4 is installed and removed via the connecting mechanism 7. Compared with existing technologies, the filter screen can be removed without disassembling the machine housing or loosening a single screw, reducing the user's maintenance and cleaning costs and greatly facilitating installation, disassembly, and maintenance.

[0024] like Figure 3 As shown, in some embodiments of this utility model, the air filtration zone 2 includes a connecting shell 21 disposed on the left side of the housing 1. The connecting shell 21 extends downward to form a taper. A slot 22 is provided on the left side of the connecting shell 21. Insertion slots 23 are provided on the front and rear sides of the slot 22. The filter component 4 is inserted into the insertion slot 23. The air passing through the fan is guided within the taper of the connecting shell 21, so that the air is filtered by the filter component 4. Multiple reinforcing ribs 11 are fixed at intervals on the edge of the groove 31 and the outer wall of the housing 1.

[0025] like Figure 3 As shown, in some embodiments of this utility model, the water collection area 3 includes a recessed groove 31 on the housing 1, a partition 32 is provided adjacent to the side of the connecting housing 21 and fixed to the groove 31, the connecting pipe port 5 is provided in the groove 31, and a frustum 33 is provided below the connecting pipe port 5 and connected to the groove 31. Water and rainwater on the coaxial flue flow into the groove 31 through the frustum 33. At this time, the water and rainwater are concentrated in the groove 31 through the partition 32 and discharged through the drainage part 6.

[0026] like Figure 3As shown, in some embodiments of this utility model, the filter component 4 includes a plug-in frame 41 inserted into the plug-in slot 23. A cover plate 42 is provided above the plug-in frame 41, and a handle 43 is provided on the cover plate 42. Multiple stainless steel filter screens 44 are fixed on the plug-in frame 41. Each stainless steel filter screen 44 can be fixed individually on the plug-in frame 41. In use, the user installs the housing 1 on the fireplace mantel and opens a hole on the fireplace mantel for the filter component 4 to pass through. In daily use, dust and smog in the air are filtered through one or more stainless steel filter screens 44 fixed on the plug-in frame 41 (existing technology uses filter cotton for the filter channel, which cannot be quickly replaced and cleaned during use and is prone to absorbing water and causing blockage). When it is necessary to clean the stainless steel filter screen 44, the user moves the cover plate 42 into the plug-in slot 23 through the handle 43 when it is necessary to install it, so that the plug-in frame 41 is inserted into the plug-in slot 23.

[0027] like Figure 1 and 2 As shown, in some embodiments of this utility model, the drainage part 6 includes a drainage pipe 61 connected to the right side of the front of the groove 31. Multiple isolation columns 62 are provided at intervals around the drainage pipe 61 and fixed on the groove 31. Water in the groove 31 is discharged through the drainage pipe 61, while the isolation columns 62 can isolate impurities in the water.

[0028] like Figure 3 and 4 As shown, in some embodiments of this utility model, the connecting mechanism 7 includes guide grooves 71 disposed on the front and rear sides of the connecting shell 21. A positioning plate 72 is fixed in the middle of each guide groove 71. Arc-shaped locking blocks 73 are disposed in each guide groove 71 and on both sides of the adjacent positioning plate 72. Fastening plates 74 are symmetrically fixed on the front and rear sides of each cover plate 42. Arc-shaped locking grooves 75 are provided in the middle of each fastening plate 74. When the user moves the cover plate 42 toward the insertion groove 23, the symmetrically disposed fastening plates 74 will contact the arc-shaped locking blocks 73, causing the fastening plates 74 to deform until the arc-shaped locking grooves 75 on the fastening plates 74 are locked onto the arc-shaped locking blocks 73. Finally, two adjacent fastening plates 74 are inserted and positioned on the positioning plate 72. The disassembly is performed in the same way as above.

[0029] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A water collecting and easy cleaning air filtering device for a fully premixed wall-hung boiler, characterized in that, include: The housing (1) has an air filter area (2) on the left side and a water collection area (3) on the right side. A filter component (4) is provided on the air filter area (2). A connecting pipe port (5) is provided in the middle of the water collection area (3). A drain section (6) is provided on one side of the water collection area (3). A connecting mechanism (7) that can be connected and fixed to the filter component (4) is provided on the air filter area (2).

2. A water collecting and easy-to-clean air filtering device for a fully premix wall-hanging boiler according to claim 1, characterized in that The air filtration area (2) includes a connecting shell (21) located on the left side of the housing (1). The connecting shell (21) extends downward to form a taper. A slot (22) is provided on the left side of the connecting shell (21). Insertion slots (23) are provided on the front and rear sides of the slot (22).

3. A water collecting and easy-to-clean air filtering device for a fully premix wall-hanging boiler according to claim 2, characterized in that The water collection area (3) includes a recessed groove (31) on the shell (1), a partition (32) is provided on the side of the connecting shell (21) and fixed on the groove (31), the connecting pipe (5) is provided in the groove (31), and a frustum (33) is provided below the connecting pipe (5) and connected to the groove (31).

4. The water collecting and easy cleaning air filtering device for a fully premix wall-hanging boiler according to claim 2, characterized in that The filter component (4) includes a plug-in frame (41) inserted into the plug-in slot (23), a cover plate (42) is provided above the plug-in frame (41), a handle (43) is provided on the cover plate (42), and a plurality of stainless steel filter screens (44) are fixed on the plug-in frame (41). Each stainless steel filter screen (44) can be fixed individually on the plug-in frame (41).

5. The water collecting and easy cleaning air filtering device for a fully premix wall-hanging boiler according to claim 1, characterized in that The drainage section (6) includes a drainage pipe (61) connected to the right side of the front of the groove (31), and a plurality of isolation posts (62) are provided at intervals around the drainage pipe (61) and fixed on the groove (31).

6. A water collecting and easy cleaning air filtering device for a fully premix wall-hanging boiler according to claim 4, characterized in that The connecting mechanism (7) includes guide grooves (71) provided on the front and rear sides of the connecting shell (21), a positioning plate (72) fixed in the middle of each guide groove (71), an arc-shaped locking block (73) provided in each guide groove (71) and on both sides of the adjacent positioning plate (72), a fastening plate (74) symmetrically fixed on the front and rear sides of each cover plate (42), and an arc-shaped locking groove (75) provided in the middle of each fastening plate (74).

7. A water collecting and easy cleaning air filtering device for a fully premix wall-hanging boiler according to claim 3, characterized in that Multiple reinforcing ribs (11) are fixed at intervals along the edge of the groove (31) and the outer wall of the shell (1).

Images