Gas wall-hanging stove external air filter

Abstract

The utility model discloses a kind of gas wall-hanging stove external air filter, which is provided with smoke pipe in the box body;Filter element placing groove is provided in the box body, and filter element is provided in filter element placing groove;Gland is sealingly provided on the upper portion of the box body;Quick-release sealing cover is provided on the gland corresponding filter element placing groove;Air inlet pipe mouth is provided on the gland, and air inlet pipe mouth is arranged around smoke pipe;Several support columns are provided in the box body, and the fixing of gland is realized by the threaded hole provided on support column.The utility model is simple in structure design, novel, which can quickly maintain internal filter element by external and setting quick-release sealing cover, and air inlet pipe mouth is also arranged around smoke pipe, air entering wall-hanging stove is heated, which can effectively improve initial combustion temperature and improve combustion efficiency, and it is an ideal gas wall-hanging stove external air filter.

Description

Technical Field

[0001] This utility model relates to the field of air intake filtration technology for wall-hung boilers, and in particular to an external air filter for a gas-fired wall-hung boiler. Background Technology

[0002] As is well known, when using a gas-fired wall-hung boiler, in order to ensure the cleanliness of the intake air, a filter device is usually installed at the gas-supply end. The filter filters the gas entering the boiler, thereby ensuring complete combustion of the gas and reducing exhaust impurities at the exhaust end, thus preventing the increase of smoke and dust.

[0003] The current technical problem is that, in the existing technology, this type of near-air filtration device is usually installed inside the wall-hung boiler. When cleaning or maintaining it, the entire device needs to be disassembled. This disassembly can only be done by professionals. The disassembly process is cumbersome and expensive, which puts a burden on the user.

[0004] Considering the above-mentioned drawbacks of the existing technology, the technical problem that urgently needs to be solved by those skilled in the art is: how to improve the technology and design an external filter, the purpose of which is to set the near-air filter device of the wall-hung boiler on the outside, so that it can be easily disassembled and maintained without the need for professional personnel, thereby reducing the difficulty and cost of maintenance. Summary of the Invention

[0005] To achieve the above objectives, this utility model develops an external air filter for a gas wall-hung boiler. It consists of a housing that can be fixed to the boiler, and a filter device installed inside the housing to filter the gas at the near end. This filter device is easy to disassemble and maintain.

[0006] The technical solution adopted is as follows:

[0007] An external air filter for a gas wall-hung boiler includes a housing with a flue pipe running through it; a filter element placement slot is provided inside the housing, and a filter element is placed in the filter element placement slot; a pressure cap is sealed on the upper part of the housing; and a quick-release sealing cap is provided on the pressure cap corresponding to the filter element placement slot.

[0008] The pressure cap is provided with an air inlet, which is arranged around the exhaust pipe.

[0009] The housing contains several support columns, each with threaded holes. The pressure cap has locking holes corresponding to the threaded holes. Reinforcing ribs are provided around the support columns.

[0010] The box body is provided with a sink groove, a sealing ring is provided in the sink groove, and the pressure cap is provided in the sink groove.

[0011] A flange ring is fixed on the gland, and the inner diameter of the flange ring is threaded, which is connected to and fixed to the quick-release sealing cover through the thread.

[0012] The filter element placement groove is provided with a flow guiding arc surface around its periphery, and the periphery of the filter element matches the flow guiding arc surface.

[0013] The beneficial effects of this utility model are as follows: This utility model features an external housing with a flue pipe running through it; a filter element placement slot is provided inside the housing, and a filter element is placed in the slot; a pressure cap is sealed at the top of the housing; a quick-release sealing cap is provided on the pressure cap corresponding to the filter element placement slot; an air inlet is provided on the pressure cap, surrounding the flue pipe; several support columns are provided inside the housing, and the pressure cap is fixed through threaded holes on the support columns. This utility model has a simple and novel structural design. Its external design with a quick-release sealing cap allows for rapid maintenance of the internal filter element. Simultaneously, the air inlet surrounding the flue pipe heats the air entering the boiler, effectively increasing the initial combustion temperature and improving combustion efficiency. It is an ideal external air filter for gas-fired wall-hung boilers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the assembly structure of this utility model;

[0017] Attached reference numerals: 1. Housing, 11. Settling tank, 2. Filter element placement slot, 21. Guide arc surface, 3. Support column, 31. Reinforcing rib, 4. Exhaust pipe, 5. Cover, 51. Fixing hole, 52. Air inlet, 6. Flange ring, 7. Quick-release sealing cover, 71. Force application hole, 8. Air inlet gap, 9. Filter element, 10. Wall-mounted boiler, 101. Top cover. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0019] As shown in the attached figure, an external air filter for a gas-fired wall-hung boiler includes a housing 1, which is fixed to the top cover 101 of the wall-hung boiler 10 when it is fixed.

[0020] A flue pipe 4 is installed through the housing 1, and the flue pipe connects to the interior of the wall-mounted boiler 10 after passing through the housing 1. A filter element placement slot 2 is provided inside the housing 1, and a filter element 9 is placed in the filter element placement slot 2. To improve the stability of the filter element after it is fixed, a flow guiding arc surface 21 is provided around the filter element placement slot 2. The filter element 9 is matched with the flow guiding arc surface 21. The flow guiding arc surface 21 can restrain the filter element 9 from shaking inside it, and also facilitates installation.

[0021] This invention features a recessed groove 11 on the housing 1, with a sealing ring inside the groove 11. A pressure cap 5 is pressed into the groove 11. Several support columns 3 are located inside the housing 1, each with threaded holes. The pressure cap 5 has locking holes corresponding to the threaded holes. The pressure cap is locked and fixed into the recessed groove of the housing 1 through the threaded holes. Each support column 3 is surrounded by a reinforcing rib 31, which enhances the overall strength of the support columns 3.

[0022] The pressure cap 5 is equipped with a quick-release sealing cap 7 corresponding to the filter element placement slot 2 and the filter element 9. In this embodiment, the quick-release sealing cap 7 is indirectly fixed to the pressure cap 5. First, a flange ring 6 is locked and fixed to the pressure cap 5. The flange ring 6 has an internal thread on its inner diameter, which connects to and fixes the quick-release sealing cap 7. The quick-release sealing cap 7 is also provided with a force application hole 71. Those skilled in the art can disassemble and replace the internal filter element 9 simply by manually tightening it. This method is convenient and quick, and can be operated even by non-professional maintenance personnel.

[0023] The key design feature of this utility model is that the pressure cap 5 is provided with an air inlet 52, such as... Figure 1 As shown, the air inlet 52 is arranged around the exhaust pipe 4, and an air inlet gap 8 is provided between the air inlet 52 and the exhaust pipe 4. External gas enters directly into the housing 1 through the air inlet gap 8. During this process, the external gas is heated before entering the wall-mounted boiler, which can effectively increase the initial combustion temperature and improve the combustion efficiency.

[0024] In summary, through the above-mentioned technical improvements, this utility model eliminates the need for complete disassembly of the equipment during cleaning or maintenance. Non-professionals can perform internal filter maintenance and replacement from the outside. The disassembly process is simple, the maintenance cost is low, and it will not impose a maintenance burden on the user. It is an ideal external air filter for gas wall-hung boilers.

Claims

1. An external air filter for a gas-fired wall-mounted boiler, comprising a housing, characterized in that: A smoke exhaust pipe is installed through the box; a filter element placement slot is provided inside the box, and a filter element is placed in the filter element placement slot; a pressure cap is sealed on the upper part of the box; a quick-release sealing cap is provided on the pressure cap corresponding to the filter element placement slot; an air inlet is provided on the pressure cap, and the air inlet surrounds the smoke exhaust pipe.

2. The external air filter for a gas-fired wall-hung boiler according to claim 1, characterized in that: The box body is provided with several support columns, each with threaded holes. The pressure cap is provided with locking holes corresponding to the threaded holes, and the support columns are provided with reinforcing ribs around their perimeter.

3. The external air filter for a gas-fired wall-hung boiler according to claim 1, characterized in that: The box body is provided with a sink groove, a sealing ring is provided in the sink groove, and the pressure cap is provided in the sink groove.

4. The external air filter for a gas-fired wall-hung boiler according to claim 1, characterized in that: A flange ring is fixed on the gland, and the inner diameter of the flange ring is threaded, which is connected to and fixed to the quick-release sealing cover through the thread.

5. The external air filter for a gas-fired wall-hung boiler according to claim 1, characterized in that: The filter element placement groove is provided with a flow guiding arc surface around its periphery, and the periphery of the filter element matches the flow guiding arc surface.

Images