Filtering structure of heating stove

Abstract

According to the filtering structure of the heating stove, the heating stove comprises a machine body, a premixing burner assembly is arranged on an inner cavity of the machine body, the filtering structure comprises a top plate and a filter screen assembly, and the inner cavity of the machine body communicates with the outside through the filter screen assembly; the filter screen assembly comprises an outer frame body and a filter screen arranged in the outer frame body, and the outer frame body is fixed on the top plate; turnups are arranged on the two sides of the bottom of the top plate respectively, and the bottom of the outer frame body is supported on the turnups. The flange is provided with a first fixing hole, the outer frame body is provided with a second fixing hole, and the fastener penetrates through the first fixing hole and then is connected with the second fixing hole in a fastened mode so that the filter screen assembly can be fixed to the top plate. According to the heating stove, the filter assembly is arranged on the top plate, the inner cavity of the machine body is communicated with the outside through the filter screen assembly, and the filter assembly can filter air entering the inner cavity of the machine body, so that mixed gas entering the premixing combustor basically does not contain impurities, and harmful gas generated after the mixed gas is combusted is prevented; and the heating stove is safer to use.

Description

Technical Field

[0001] This utility model relates to the field of heating furnace technology, and in particular to a filter structure for a heating furnace. Background Technology

[0002] Chinese Patent Document No. CN115654733B, published on March 31, 2023, discloses a wall-mounted heating boiler, including a housing, a combustion chamber disposed within the housing, a condensing chamber disposed within the housing, located above and connected to the combustion chamber, a condensing exchanger disposed within the condensing chamber, having a first inlet and a first outlet, a main exchanger disposed within the combustion chamber and being annular, having a second inlet and a second outlet, the first outlet being connected to the second inlet, the second outlet being connected to a hot water interface, the first inlet being connected to a return water interface, a burner disposed within the annular shape of the main exchanger, a premixing component connected to a gas inlet pipe, having a gas inlet and an air inlet, and an exhaust pipe connected to the condensing chamber, the exhaust pipe passing through the air inlet pipe and located within the air inlet pipe; this heating boiler uses a mixture of air and gas to enter the combustion chamber for combustion, but air generally contains impurities, and the combustion of the mixed gas may produce harmful gases, affecting the safety of the heating boiler.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a filter structure for a heating boiler that is simple in structure, has good filtration effect, is safe and reliable, is easy to disassemble and assemble, and is highly practical, so as to overcome the shortcomings of the prior art.

[0005] A filter structure for a heating furnace designed for this purpose includes a body with a premixed burner assembly installed in the inner cavity of the body. The filter structure includes a top plate installed on the top of the body and a filter assembly installed on the top plate. The inner cavity of the body is connected to the outside through the filter assembly.

[0006] The filter assembly includes an outer frame and a filter screen disposed within the outer frame, with the outer frame fixed to the top plate.

[0007] The bottom of the top plate has flanges on both sides, and the bottom of the outer frame is supported on the flanges.

[0008] The flange has a first fixing hole, and the outer frame has a second fixing hole. The fastener passes through the first fixing hole and is then fastened to the second fixing hole to fix the filter assembly to the top plate.

[0009] Several ventilation holes are provided on the top plate, and the filter assembly is connected to the outside through the ventilation holes.

[0010] A fume hood for installing the smoke outlet pipe is provided at the top of the top plate. A ventilation gap is provided between the fume hood and the top plate, and the filter assembly is connected to the outside through the ventilation gap.

[0011] The top of the top plate is equipped with a smoke hood for installing the smoke outlet pipe. The lower end of the smoke outlet pipe is connected to the premixed burner assembly. The filter assembly is provided with a clearance notch. The smoke outlet pipe passes through the clearance notch and the smoke hood in sequence and then extends out of the machine body.

[0012] The premixed burner assembly includes a premixed burner, a gas mixing chamber, and a fan. The air inlet of the fan is connected to the inner cavity of the unit, the air outlet of the fan is connected to the gas mixing chamber, and the gas mixing chamber is connected to the premixed burner.

[0013] The filter assembly is located at the top of the inner cavity, and is situated between the top plate and the premixed burner.

[0014] An opening is provided at one end of the top plate, and a receiving groove is provided on the top plate. The filter assembly is inserted into the receiving groove through the opening and is fixed in the receiving groove.

[0015] The heating furnace of this utility model has a filter assembly installed on the top plate. The inner cavity of the unit is connected to the outside through the filter assembly. The filter assembly can filter the air entering the inner cavity of the unit, so that the mixed gas entering the premixed burner is basically free of impurities, preventing the production of harmful gases after the mixed gas is burned, and making the use of the heating furnace safer. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly structure of the filter component and the top plate in one embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of the top plate in one embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the overall structure of the filter assembly in one embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the overall structure of the heating furnace in one embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the overall structure of the heating furnace from another position in one embodiment of the present invention. Detailed Implementation

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

[0022] See Figures 1-5The filtration structure of this heating boiler includes a body 1, a premixed burner assembly 5 installed on the inner cavity 4 of the body 1, and a top plate 2 installed on the top of the body 1 and a filter assembly 3 installed on the top plate 2. The inner cavity 4 of the body 1 is connected to the outside through the filter assembly 3.

[0023] The filter assembly 3 includes an outer frame 6 and a filter 7 disposed inside the outer frame 6. The outer frame 6 is fixed to the top plate 2, and the filter 7 is embedded inside the outer frame 6.

[0024] The bottom sides of the top plate 2 are respectively provided with flanges 8, and the bottom of the outer frame 6 is supported on the flanges 8.

[0025] The flange 8 is provided with a first fixing hole 9, and the outer frame 6 is provided with a second fixing hole 10. The fastener (screw) passes through the first fixing hole 9 and is then fastened to the second fixing hole 10 so that the filter assembly 3 is fixed on the top plate 2.

[0026] The top plate 2 is provided with several ventilation holes 11, and the filter assembly 3 is connected to the outside through the ventilation holes 11.

[0027] Alternatively, a smoke hood 12 for installing a smoke outlet pipe is provided on the top of the top plate 2, and a ventilation gap is provided between the smoke hood 12 and the top plate 2, through which the filter assembly 3 is connected to the outside.

[0028] The top plate 2 is provided with a smoke hood 12 for installing the smoke outlet pipe. The lower end of the smoke outlet pipe is connected to the premixed burner assembly 5 (premixed burner 14). The filter assembly 3 is provided with a clearance notch 13. The smoke outlet pipe passes through the clearance notch 13 and the smoke hood 12 in sequence and then extends out of the body 1. The clearance notch 13 is provided on the outer frame 6.

[0029] The premixed burner assembly 5 includes a premixed burner 14, a gas mixing chamber 15, and a fan 16. The air inlet of the fan 16 is connected to the inner cavity 4 of the body 1, and the air outlet of the fan 16 is connected to the gas mixing chamber 15. The gas mixing chamber 15 is connected to the premixed burner 14. When the fan 16 is working, outside air enters the inner cavity 4 of the body 1 through the filter assembly 3. The air in the inner cavity 4 enters the gas mixing chamber 15 through the fan 16, and the air and gas are mixed in the gas mixing chamber 15. The mixed gas enters the premixed burner 14 for combustion, and the flue gas produced by combustion is discharged to the outside through the flue pipe. In addition, when the fan 16 is not working, the gas in the inner cavity 4 may be discharged to the outside through the filter assembly 3. A small amount of flue gas may exist in the inner cavity 4. The filter assembly 3 can filter the flue gas to prevent it from polluting the outside air after being discharged to the outside.

[0030] The filter assembly 3 is located at the top of the inner cavity 4, and the filter assembly 3 is located between the top plate 2 and the premixed burner 14.

[0031] The top plate 2 has an opening 18 at one end and a receiving groove 17 at the bottom. The filter assembly 3 is inserted into the receiving groove 17 through the opening 18 and is fixed in the receiving groove 17. When installing the filter assembly 3, first insert the filter assembly 3 into the receiving groove 17 through the opening 18, and then tighten the screws to fix the filter assembly 3 in the receiving groove 17. The disassembly process of the filter assembly 3 is the reverse of the installation process, but the principle is the same, so it will not be described in detail here. The above-mentioned disassembly and assembly structure of the filter assembly 3 makes the disassembly and assembly of the filter assembly 3 more convenient.

[0032] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and 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 merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A filter structure of a heating stove, the heating stove comprising a body (1), a premix burner assembly (5) being arranged on an inner cavity (4) of the body (1), characterized in that: The filter structure comprises a top plate (2) arranged on the top of the body (1) and a filter screen assembly (3) arranged on the top plate (2), and the inner cavity (4) of the body (1) is communicated with the outside through the filter screen assembly (3).

2. The filtering structure of a heating stove according to claim 1, characterized in that: The filter screen assembly (3) comprises an outer frame (6) and a filter screen (7) arranged in the outer frame (6), and the outer frame (6) is fixed on the top plate (2).

3. The filter structure of a heating stove according to claim 2, characterized in that: The bottom of the top plate (2) is provided with a flange (8) on each side, and the bottom of the outer frame (6) is supported on the flange (8).

4. The filter structure of a heating stove according to claim 3, characterized in that: The flange (8) is provided with a first fixing hole (9), and the outer frame (6) is provided with a second fixing hole (10), and the fastener is fastened and connected with the second fixing hole (10) after passing through the first fixing hole (9), so that the filter screen assembly (3) is fixed on the top plate (2).

5. The filter structure of a heating stove according to claim 3, characterized in that: The top plate (2) is provided with a plurality of ventilation holes (11), and the filter screen assembly (3) is communicated with the outside through the ventilation holes (11).

6. The filtering structure of a heating stove according to claim 3, characterized in that: The top plate (2) is provided with a smoke hood (12) for installing a smoke outlet pipe, and a ventilation gap is arranged between the smoke hood (12) and the top plate (2), and the filter screen assembly (3) is communicated with the outside through the ventilation gap.

7. The filter structure of a heating stove according to claim 3, characterized in that: The top plate (2) is provided with a smoke hood (12) for installing a smoke outlet pipe, and the lower end of the smoke outlet pipe is connected with a premix burner assembly (5), and the filter screen assembly (3) is provided with a clearance gap (13), and the smoke outlet pipe extends out of the body (1) after passing through the clearance gap (13) and the smoke hood (12) in sequence.

8. The filter structure of a heating stove according to claim 3, characterized in that: The premix burner assembly (5) comprises a premix burner (14), a gas mixing bin (15) and a fan (16), the air inlet end of the fan (16) is communicated with the inner cavity (4) of the body (1), the air outlet end of the fan (16) is communicated with the gas mixing bin (15), and the gas mixing bin (15) is communicated with the premix burner (14).

9. The filter structure of a heating stove according to claim 8, characterized in that: The filter screen assembly (3) is located at the inner top of the inner cavity (4), and the filter screen assembly (3) is located between the top plate (2) and the premix burner (14).

10. The filtering structure of a heating stove according to claim 3, characterized in that: One end of the top plate (2) is provided with an opening (18), and the top plate (2) is provided with a receiving groove (17), the filter screen assembly (3) is inserted into the receiving groove (17) through the opening (18), and the filter screen assembly (3) is fixed in the receiving groove (17).

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