Air filtering structure of condensation type gas heating water heater

By installing an air filter and a water collection shell structure in the condensing gas-fired heating and hot water boiler, the problem of impurities entering the air is solved, combustion efficiency and equipment stability are improved, and the risks of noise and rainwater ingress are reduced.

CN224175172UActive Publication Date: 2026-04-28GUANGDONG SHUNDE SANPAULA THERMAL ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG SHUNDE SANPAULA THERMAL ENERGY TECH CO LTD
Filing Date
2025-05-30
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing condensing gas-fired heating and hot water boilers lack effective filtration devices when introducing air, allowing external impurities to enter and affect combustion efficiency and internal components, posing a risk of damage.

Method used

A structure including a combustion device, a ventilation device, and an air filtration device was designed. The introduced air is filtered by setting a filter screen to trap dust and particulate matter, and condensate is collected in the water collection shell to reduce noise and discharge rainwater.

Benefits of technology

It improves combustion efficiency, prevents damage to internal components, ensures stable equipment operation, and reduces the risk of noise and rainwater ingress.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224175172U_ABST
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Abstract

The utility model relates to an air filtering structure of a condensation type gas heating water heater, which comprises a combustion device, an air draft device and an air filtering device which are arranged in a furnace body, the output end of the air draft device is connected with the combustion device, the air draft device is communicated with the interior of the furnace body, the furnace body is provided with a smoke tube seat, and the smoke tube seat is provided with a first connecting port and a second connecting port. The first connecting port is connected with the combustion device and used for discharging smoke, the air filtering device is connected with the second connecting port and the interior of the furnace body, and external air can enter the furnace body sequentially through the second connecting port and the air filtering device. The air filtering device is arranged in the condensation type gas heating water heater, introduced air can be filtered, dust and particulate matter in the air are intercepted, and the combustion efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to an air filtration structure for a condensing gas-fired heating and hot water boiler. Background Technology

[0002] Traditional condensing gas-fired heating and hot water boilers typically generate heat through a combustion device, requiring the introduction of outside air to support the combustion process and the exhaust gases through a flue. However, existing condensing gas-fired heating and hot water boilers suffer from insufficient air filtration during the air introduction process. Outside air may contain dust, particulate matter, and other impurities, which, if directly introduced into the combustion device, can affect combustion efficiency and even damage internal components. In current technology, some condensing gas-fired heating and hot water boilers lack effective air filtration devices or have simple filtration structures that are insufficient for long-term stable operation. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned problems. We provide an air filtration structure for a condensing gas-fired heating and hot water boiler. This condensing gas-fired heating and hot water boiler has an air filtration device that can filter the introduced air, thereby improving the combustion efficiency of the condensing gas-fired heating and hot water boiler.

[0004] To achieve the above objectives, this utility model provides an air filtration structure for a condensing gas-fired heating and hot water boiler, including a combustion device, an exhaust device, and an air filtration device disposed inside the boiler body. The output end of the exhaust device is connected to the combustion device and communicates with the interior of the boiler body. The boiler body is provided with a flue seat, which has a first connection port and a second connection port. The first connection port is connected to the combustion device for exhausting smoke. The air filtration device is connected to the second connection port and the interior of the boiler body, respectively. Outside air can enter the interior of the boiler body sequentially through the second connection port and the air filtration device.

[0005] In one or more embodiments, the flue pipe seat is installed on the top plate of the furnace body. The flue pipe seat includes an inner pipe and an outer pipe arranged coaxially. A first connection port is formed inside the inner pipe, and a second connection port is formed between the outer pipe and the inner pipe.

[0006] In one or more embodiments, the furnace body is provided with a water collection shell, an air filter is provided on one side of the water collection shell, the water collection shell has an upper opening and is connected and fixed to the top plate, and the second connection port corresponds to the inside of the water collection shell.

[0007] In one or more embodiments, the air filtration device is a filter plate, and the input end of the exhaust device is connected to an air duct, with the inlet of the air duct located close to the filter plate.

[0008] In one or more embodiments, the water collection shell is provided with a water outlet, the bottom of the furnace body is provided with a drain outlet, and the drain outlet and the water outlet are connected by a drain pipe.

[0009] In one or more embodiments, the periphery of the flue seat is provided with a mounting plate, the mounting plate has a plurality of strip-shaped holes distributed circumferentially, and the top plate has screw holes, the strip-shaped holes and the screw holes are connected together by screws.

[0010] Compared with the prior art, the advantages of this utility model are: the condensing gas heating and hot water boiler is equipped with an air filtration device inside, which can filter the introduced air, trap dust and particulate matter in the air, and improve combustion efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the internal structure of the furnace body according to an embodiment of the present invention;

[0012] Figure 2 for Figure 1 A structural diagram from another angle;

[0013] Figure 3 This is a schematic diagram of the structure after the top plate is removed in an embodiment of the utility model. Detailed Implementation

[0014] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0015] Please refer to Figure 1-3 This utility model provides an air filtration structure for a condensing gas-fired heating and hot water boiler, including a combustion device 1, an exhaust device 2, and an air filtration device 3 located inside the boiler body. The output end of the exhaust device 2 is connected to the combustion device 1 and communicates with the interior of the boiler body. The boiler body is provided with a flue seat, which has a first connection port 4 and a second connection port 5. The first connection port 4 is connected to the combustion device 1 for exhausting smoke. The air filtration device 2 is connected to the second connection port 5 and the interior of the boiler body. Outside air can enter the interior of the boiler body through the second connection port 5 and the air filtration device 3 in sequence. The air filtration device filters the introduced air, trapping dust and particulate matter. The filtered air is supplied to the combustion device, which can significantly improve combustion efficiency.

[0016] The flue pipe seat is installed on the top plate 6 of the furnace body. The flue pipe seat includes an inner pipe and an outer pipe arranged coaxially. A first connection port 4 is formed inside the inner pipe, and a second connection port 5 is formed between the outer pipe and the inner pipe. The inner pipe and the outer pipe can facilitate the connection and use of the pipe.

[0017] The furnace body is equipped with a water collection shell 7 inside, and an air filter device 3 is located on one side of the water collection shell. The water collection shell 7 has an upward opening and is connected and fixed to the top plate 6. The second connection port 5 corresponds to the inside of the water collection shell 7. During the flue gas exhaust process, the condensate generated by the pipe due to the temperature difference can enter the water collection shell to facilitate the collection of condensate. In addition, for furnace bodies installed outdoors, rainwater can easily enter the furnace body through the air introduction pipe, so rainwater can also be collected and discharged.

[0018] The air filtration device 3 is a filter plate, and the input end of the exhaust device 2 is connected to an air duct 8. The inlet of the air duct is located close to the filter plate so that the air discharged from the air filtration device can directly enter through the air duct. In addition, the air duct is preferably a threaded pipe, which can reduce noise emission and reduce the noise generated by the wind force when the exhaust device is working.

[0019] The water collection shell 7 is provided with a water outlet 9, and a drain outlet is provided at the bottom of the furnace body. The drain outlet and the water outlet are connected by a drain pipe so that the water collected by the water collection shell can be discharged directly from the drain outlet.

[0020] The outer periphery of the flue seat is provided with a mounting plate 10. The mounting plate has multiple strip-shaped holes 11 distributed circumferentially, and screw holes 12 are opened on the top plate. The strip-shaped holes and screw holes are connected together by screws. This structure can facilitate the alignment and installation of screws.

[0021] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. An air filtration structure for a condensing gas-fired heating and hot water boiler, characterized in that: It includes a combustion device (1), an exhaust device (2), and an air filter (3) located inside the furnace body. The output end of the exhaust device (2) is connected to the combustion device (1), and the exhaust device (2) is connected to the inside of the furnace body. The furnace body is provided with a smoke pipe seat, which has a first connection port (4) and a second connection port (5). The first connection port (4) is connected to the combustion device (1) for exhausting smoke. The air filter (3) is connected to the second connection port (5) and the inside of the furnace body respectively. Outside air can enter the inside of the furnace body through the second connection port (5) and the air filter (3) in sequence.

2. The air filtration structure of a condensing gas-fired heating and hot water boiler according to claim 1, characterized in that: The flue seat is installed on the top plate (6) of the furnace body. The flue seat includes an inner tube and an outer tube arranged coaxially. A first connection port (4) is formed inside the inner tube, and a second connection port (5) is formed between the outer tube and the inner tube.

3. The air filtration structure of a condensing gas-fired heating and hot water boiler according to claim 2, characterized in that: The furnace body is provided with a water collection shell (7) inside, and an air filter device (3) is located on one side of the water collection shell. The water collection shell (7) has an upper opening and is connected and fixed to the top plate (6). The second connection port (5) corresponds to the inside of the water collection shell (7).

4. The air filtration structure of a condensing gas-fired heating and hot water boiler according to claim 3, characterized in that: The air filtration device (3) is a filter plate, and the input end of the exhaust device (2) is connected to an air duct (8), with the air duct's inlet located near the filter plate.

5. The air filtration structure of a condensing gas-fired heating and hot water boiler according to claim 3, characterized in that: The water collection shell (7) is provided with a water outlet (9), and a drain outlet is provided at the bottom of the furnace body. The drain outlet and the water outlet are connected by a drain pipe.

6. The air filtration structure of a condensing gas-fired heating and hot water boiler according to claim 2, characterized in that: The outer periphery of the flue seat is provided with a mounting plate (10), and the mounting plate has multiple strip-shaped holes (11) distributed circumferentially. The top plate has screw holes (12), and the strip-shaped holes and screw holes are connected together by screws.