Filtering device and water heater

Abstract

The utility model provides a filtering device and a water heater. The filtering device comprises a shell, and a first opening and a second opening are correspondingly formed in the top and the bottom of the shell; a smoke exhaust pipe is arranged in the second opening, the top of the smoke exhaust pipe is arranged in the first opening in a penetrating mode, and a first air inlet gap is formed between the smoke exhaust pipe and the first opening; a third opening and a fourth opening which correspond to each other are formed in the top and the bottom of the shell; a filter screen mounting cylinder is arranged in the fourth opening, the top of the filter screen mounting cylinder is arranged in the third opening in a penetrating manner, and a second air inlet gap is formed between the filter screen mounting cylinder and the third opening; a filter screen is arranged in the filter screen mounting cylinder, a filter screen cover is arranged at the top of the third opening, and the third opening is sealed by the filter screen cover. According to the utility model, the quality of air entering the combustor can be managed, dust is filtered, and the quality of air participating in combustion is ensured to meet the design requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a filtering device and a water heater. Background Art

[0002] Existing combustion heating equipment, such as gas heating furnaces and gas water heaters, are mostly direct air supply type when burning gas, that is, the air required for combustion is taken directly from the outside. Most current products are atmospheric combustion, so the requirements for air quality are relatively low. In recent years, with the upgrading of energy conservation and environmental protection, the era of full premixed combustion has arrived. Both gas wall-mounted boilers and gas water heaters have switched to full premixed combustion, which has higher requirements for air quality. In northern my country, due to the influence of wind, sand, flying catkins, haze, etc., the air entering the interior of the whole machine contains a large amount of ash dust, resulting in a large amount of ash scale remaining on the internal components of the whole machine after combustion. The accumulation of ash scale will affect the combustion and heat exchange effect and the performance of the whole machine, such as abnormal combustion, increased noise, increased energy consumption, and severe cases will cause blockage of the burner and heat exchanger.

[0003] Therefore, it is necessary to provide an improved technical solution to the above-mentioned deficiencies in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide a filtering device, which can manage the quality of air entering the burner, filter out ash and dust, and ensure that the quality of the air participating in the combustion meets the design requirements.

[0005] Another object of the present invention is to provide a water heater, which includes the above-mentioned filtering device, which can manage the quality of air entering the burner, filter out ash and dust, and ensure that the quality of air participating in combustion meets the design requirements.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A filtering device comprises a shell, wherein the top and bottom of the shell are provided with corresponding first and second openings; a smoke exhaust pipe is provided in the second opening, the top of the smoke exhaust pipe is passed through the first opening, and a first air intake gap is formed between the smoke exhaust pipe and the first opening; the top and bottom of the shell are also provided with corresponding third and fourth openings; a filter mounting cylinder is provided in the fourth opening, the top of the filter mounting cylinder is passed through the third opening, and a second air intake gap is formed between the filter mounting cylinder and the third opening; a filter is provided in the filter mounting cylinder, and a filter cover is provided at the top of the third opening, and the filter cover closes the third opening.

[0008] According to one embodiment of the present invention, the filter screen is in the shape of a cylinder, and an annular clamping plate extending outward is provided on the top of the filter screen.

[0009] According to one embodiment of the present invention, the filter screen includes a cylindrical bracket and a mesh cover, and the mesh cover is embedded in the side wall and bottom of the bracket.

[0010] According to one embodiment of the present invention, a lifting lug is provided on the annular clamping plate.

[0011] According to one embodiment of the present invention, the filter cover is detachably connected to the third opening.

[0012] According to one embodiment of the present invention, the portion of the housing corresponding to the filter and / or the filter cover are made of transparent material.

[0013] According to one embodiment of the present invention, the top of the filter installation cylinder is located above the third opening.

[0014] According to one embodiment of the present invention, a sewage outlet is provided at the bottom of the shell.

[0015] The utility model also provides a water heater, comprising an outer shell body and the above-mentioned filtering device; an air inlet and a smoke exhaust port are provided above the outer shell body, the air inlet is connected to the fourth opening, the smoke exhaust port is connected to the second opening, and the shell body is detachably connected to the outer shell body.

[0016] Compared with the prior art, the advantages and beneficial effects of the embodiments of the present invention are:

[0017] When the filter device and water heater provided by the embodiment of the present invention are in use, outdoor air enters the interior of the shell through the first air intake gap, then enters the filter cover through the second air intake gap, and finally enters the interior of the water heater from the bottom of the filter to provide air intake for the burner. The outdoor air is filtered through the filter, and a large amount of dust is removed. The quality of the air entering the burner can be managed to ensure that the quality of the air involved in combustion meets the design requirements. The filter device provided by the embodiment of the present invention can be externally installed on the top of the combustion heating equipment (water heater). By removing the filter cover, the dust accumulation in the filter can be easily observed to replace or clean the filter; and when replacing or cleaning the filter, there is no need to disassemble the machine. Only the filter cover needs to be removed to take out the filter for operation. The filter device provided by the embodiment of the present invention adopts an integrated modular design of air intake, filtration, and exhaust. It has a compact structure, a small size, is not restricted by the model, has high versatility, and can adapt to different combustion heating equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present invention are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention.

[0019] Figure 1 A schematic structural diagram of a filtering device provided in an embodiment of the present utility model;

[0020] Figure 2 A schematic diagram of the assembly of a filter device provided in an embodiment of the present utility model;

[0021] Figure 3 A schematic structural diagram of the filter screen of the filtering device provided in an embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 1. Shell; 11. First opening; 111. First air inlet gap; 12. Second opening; 13. Third opening; 131. Second air inlet gap; 14. Fourth opening; 15. Filter mounting tube; 16. Drain outlet; 17. Upper shell; 18. Lower shell; 2. Smoke exhaust pipe; 3. Filter; 31. Annular plate; 32. Bracket; 33. Mesh cover; 34. Lifting ear; 4. Filter cover. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with examples. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present invention encompass such modifications and variations as come within the scope of the appended claims and their equivalents.

[0025] In the description of the present invention, the words "first", "second" and similar terms do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprises" and similar terms mean that the element or object preceding the word includes the elements or objects listed after the word and their equivalents, but does not exclude other elements or objects. The terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and other directions or positions are based on the directions or positions shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention. The terms "connected", "connected" and "disposed" used in the present invention should be understood in a broad sense. For example, they can mean fixed connection or detachable connection; direct connection or indirect connection through an intermediate component; wired electrical connection, radio connection, or wireless communication signal connection. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0026] like Figure 1 、 Figure 2 As shown, an embodiment of the present invention provides a filtering device, comprising a housing 1, wherein the top and bottom of the housing 1 are provided with corresponding first and second openings 11, 12. A smoke exhaust pipe 2 is provided in the second opening 12, and the top of the smoke exhaust pipe 2 is inserted into the first opening 11, with a first air intake gap 111 formed between the smoke exhaust pipe 2 and the first opening 11. The top and bottom of the housing 1 are also provided with corresponding third and fourth openings 13, 14. A filter screen mounting cylinder 15 is provided in the fourth opening 14. In this embodiment, the filter screen mounting cylinder 15 is formed by an upward extension of the edge of the fourth opening 14. In other embodiments, the filter screen mounting cylinder 15 can also be detachably provided in the fourth opening 14. The top of the filter screen mounting cylinder 15 is inserted into the third opening 13, with a second air intake gap 131 formed between the filter screen mounting cylinder 15 and the third opening 13. A filter screen 3 is provided in the filter screen mounting cylinder 15, and a filter screen cover 4 is provided at the top of the third opening 13, which closes the third opening 13.

[0027] When in use, the filter device provided by the embodiment of the present invention is installed on the top of a combustion heating device (such as a water heater), and the exhaust pipe 2 is connected to the exhaust pipe of the burner. Figure 1As shown, the outdoor air enters the interior of the housing 1 through the first air intake gap 111 in the direction of the arrow, then enters the filter cover 4 through the second air intake gap 131, and finally enters the interior of the combustion heating equipment from the bottom of the filter 3 to provide air intake for the burner. The outdoor air is filtered through the filter 3, removing a large amount of dust, which can manage the quality of the air entering the burner and ensure that the quality of the air involved in combustion meets the design requirements. The air filter device of the existing fully premixed product is usually set inside the whole machine, and the machine needs to be disassembled for installation and maintenance. At the same time, the user cannot directly visually observe the degree of blockage of the filter device, and needs to notify the after-sales service to come to the door when the whole machine has an abnormality. The filter device provided by the embodiment of the present utility model can be externally installed on the top of the combustion heating equipment (such as a water heater). By removing the filter cover 4, the dust accumulation in the filter 3 can be easily observed to replace or clean the filter 3; and when replacing or cleaning the filter 3, there is no need to disassemble the machine, only the filter cover 4 needs to be removed to take out the filter 3 for operation. The filtering device provided in the embodiment of the utility model adopts an integrated modular design of air intake, filtration and exhaust, has a compact structure, a small size, is not restricted by machine models, has high versatility, and can adapt to different combustion heating equipment.

[0028] like Figure 2 、 Figure 3 As shown, in one embodiment of the present invention, the filter 3 is cylindrical in shape, with an outwardly extending annular retaining plate 31 at the top. The diameter of the annular retaining plate 31 is larger than the inner diameter of the filter mounting cylinder 15, while the outer diameter of the filter 3 is smaller than the inner diameter of the filter mounting cylinder 15. This allows the annular retaining plate 31 at the top of the filter 3 to engage the top edge of the filter mounting cylinder 15, securing the filter 3 within the cylinder 15. Furthermore, the filter 3 includes a cylindrical bracket 32 ​​and a mesh cover 33, which is embedded in the sidewalls and bottom of the bracket 32. The bracket 32 ​​may be plastic, and the mesh cover 33 may be a stainless steel filter. To facilitate removal of the filter 3, in a preferred embodiment of the present invention, the annular retaining plate 31 is provided with a lifting tab 34. After the filter cover 4 is removed, the lifting tab 34 allows the filter 3 to be conveniently and stably lifted upward, preventing dust from passing through the filter mounting cylinder 15 and falling into the combustion heating device.

[0029] In order to facilitate the removal of the filter cover 4 and the observation, cleaning or replacement of the filter 3, the filter cover 4 and the third opening 13 are detachably connected, for example, by means of threads, snaps, etc.

[0030] In order to more conveniently observe the dust accumulation in the filter 3, the portion of the housing 1 corresponding to the filter 3 and / or the filter cover 4 are made of transparent material. In this way, the degree of dirtiness of the filter 3 can be directly observed from the outside without removing the filter cover 4.

[0031] like Figure 1As shown, in a preferred embodiment of the present invention, the top of the filter installation cylinder 15 is located above the third opening 13 to slow down the flow rate of air entering the filter 3 and improve the filtering effect.

[0032] like Figure 1 As shown, in one embodiment of the present invention, a sewage outlet 16 is provided at the bottom of the shell 1 to discharge condensed water, rainwater, etc. that fall into the interior of the shell 1.

[0033] like Figure 1 、 Figure 2 As shown, in one embodiment of the present invention, the housing 1 includes an upper shell 17 and a lower shell 18 that are interconnected. For example, the four sides of the lower shell 18 are assembled with the four sides of the upper shell 17 and then welded or sealed using a dehydration seal. The first opening 11 and the third opening 13 are provided on the upper shell 17, while the second opening 12, the fourth opening 14, and the drain outlet 16 are provided on the lower shell 18. The lower shell 18 can be made of a transparent material to facilitate external observation of the status of the internal filter 3.

[0034] The embodiment of the present invention also provides a water heater, comprising a shell body and the above-mentioned filtering device. An air inlet and a smoke exhaust port are provided above the shell body, the air inlet is connected to the fourth opening 14, the smoke exhaust port is connected to the second opening 12 (i.e., the smoke exhaust pipe 2), and the shell 1 is detachably connected to the shell body. The filtering device is an independent module and can be made into a universal accessory. The water heater can choose to assemble it or not. The filtering device can be externally installed on the top of the water heater. The outdoor air is filtered through the filter 3 of the filtering device and enters the interior of the water heater, thereby supplying gas to the burner.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A filtering device, characterized in that: The invention comprises a shell (1), wherein the top and bottom of the shell (1) are provided with a corresponding first opening (11) and a second opening (12); a smoke exhaust pipe (2) is provided in the second opening (12), the top of the smoke exhaust pipe (2) is passed through the first opening (11), and a first air intake gap (111) is formed between the smoke exhaust pipe (2) and the first opening (11); the top and bottom of the shell (1) are also provided with corresponding third openings (13) and fourth openings (14); a filter screen installation cylinder (15) is provided in the fourth opening (14), the top of the filter screen installation cylinder (15) is passed through the third opening (13), and a second air intake gap (131) is formed between the filter screen installation cylinder (15) and the third opening (13); a filter screen (3) is provided in the filter screen installation cylinder (15), a filter screen cover (4) is provided at the top of the third opening (13), and the filter screen cover (4) closes the third opening (13).

2. The filtering device according to claim 1, characterized in that The filter screen (3) is in the shape of a cylinder, and an annular clamping plate (31) extending outward is provided on the top of the filter screen (3).

3. The filtering device according to claim 2, characterized in that The filter screen (3) comprises a cylindrical bracket (32) and a mesh cover (33), wherein the mesh cover (33) is embedded in the side wall and bottom of the bracket (32).

4. The filtering device according to claim 3, characterized in that The annular clamping plate (31) is provided with a lifting lug (34).

5. The filtering device according to any one of claims 1 to 4, characterized in that The filter cover (4) and the third opening (13) are detachably connected.

6. The filtering device according to any one of claims 1 to 4, characterized in that The portion of the housing (1) corresponding to the filter (3) and / or the filter cover (4) are made of a transparent material.

7. The filtering device according to any one of claims 1 to 4, characterized in that The top of the filter installation cylinder (15) is located above the third opening (13).

8. The filtering device according to any one of claims 1 to 4, characterized in that A sewage outlet (16) is provided at the bottom of the shell (1).

9. A water heater, characterized in that: It comprises an outer shell body and a filtering device according to any one of claims 1 to 8; an air inlet and a smoke exhaust port are provided above the outer shell body, the air inlet is connected to the fourth opening (14), the smoke exhaust port is connected to the second opening (12), and the shell (1) is detachably connected to the outer shell body.

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