Downward-air-inlet smoke-return-preventing air inlet pressurizing fireplace
By adding a booster air pipe at the exhaust port of the fireplace and connecting it with the furnace with a booster, and adding a honeycomb ventilation duct, the problem of airflow reflux of the smoke pipe in the fireplace during windy weather is solved, and efficient heat utilization and combustion effect is achieved.
Patent Information
- Application Number
- CN202510297216.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-05-09
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing fireplaces are prone to reflux of smoke pipe airflow during windy weather, causing smoke to enter the room, affecting combustion efficiency and indoor environment health.
A lower intake air-proof smoke-returning air intake furnace is designed. By adding a booster air duct at the exhaust port and connecting it with the inside of the furnace with a booster, a honeycomb ventilation duct is added to achieve effective boosting of the airflow and full supply of oxygen.
It effectively avoids the reflux of the smoke pipe airflow, ensures the heat value and heating effect, avoids the waste of heat, and achieves the full combustion and combustion-stimulating effect of fuel.
Smart Images

Figure CN119957976A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of fireplaces, and in particular relates to a bottom air intake, smoke return prevention, air intake and pressurized fireplace. Background Art
[0002] Nowadays, fireplaces are subject to usage conditions. In windy weather, the smoke pipe airflow often flows back into the fireplace, which causes smoke to enter the room when the fireplace is ignited or added with firewood. On the one hand, it is not conducive to the internal combustion of the fireplace, resulting in incomplete combustion and the calorific value cannot be fully utilized; on the other hand, the smoke that flows back into the room will have a greater impact on the indoor environment and affect the health of the people indoors.
[0003] In order to solve the problem of smoke return in the current existing technology, some exhaust fans are added at the end of the smoke pipe or in the furnace body. Although this can avoid the problem of smoke return to a certain extent, it will also cause a lot of heat to be lost through the smoke pipe, affecting the calorific value, affecting the heating effect, and wasting heat.
[0004] How to solve the above problems is our research and development direction. Summary of the invention
[0005] The present invention provides a bottom air intake and anti-smoke backflow air intake and pressurized fireplace, which can solve the problems pointed out in the background technology.
[0006] A bottom-intake anti-smoke backflow air intake booster fireplace, comprising a furnace body, the furnace body comprising a furnace body, a smoke exhaust port and a furnace, a booster air pipe and a switch regulating valve are arranged in the smoke exhaust port, the air outlet height of the booster air pipe is higher than the height of the furnace and higher than the closing height of the switch regulating valve, the booster air pipe is connected to the booster; the smoke exhaust port is a smoke exhaust pipe installation body, which protrudes from the furnace body and is located at an upper part of one side of the furnace body;
[0007] The supercharger is connected to the first ventilation duct and the second ventilation duct through a tee, and the second ventilation duct is used to transport the airflow into the furnace; the second ventilation duct is located at the bottom of the furnace body, and enters the furnace through the bottom interlayer with the bottom of the furnace; the bottom interlayer is connected to the honeycomb ventilation pipe of the furnace through a third ventilation duct.
[0008] Preferably, the smoke exhaust port is located at the upper rear side of the furnace body, the supercharger and the smoke exhaust port are located on the same side of the furnace body, and are connected to the smoke exhaust pipe installation body through a first ventilation duct.
[0009] Preferably, a ash cleaning port is provided on one side of the smoke exhaust port.
[0010] Preferably, the honeycomb ventilation pipe comprises a pipe body and a plurality of small ventilation openings distributed on the pipe body, and the third ventilation duct is located on the side of the furnace body.
[0011] Preferably, the supercharger is a fan.
[0012] Beneficial effects: The present invention provides a bottom-intake, anti-smoke-return, air-intake, and pressurized fireplace, in which a pressurized air pipe is added to the smoke exhaust port. The pressurization of the pressurized air pipe can effectively avoid the problem of airflow backflow in the smoke pipe, and will not cause excessive heat loss, thereby ensuring the calorific value and heating effect and avoiding heat waste. In addition, the supercharger is also connected to the inside of the furnace and a honeycomb ventilation pipe is added, which can have a good combustion-supporting effect, enable the fuel to be fully burned, make full use of the fuel, and meet the customer's needs for a strong fire. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the internal structure of the present invention,
[0014] Figure 2 is a schematic diagram of the external structure of the present invention,
[0015] Figure 3 is a schematic diagram of the bottom structure of the present invention,
[0016] Figure 4 This is a schematic diagram of the structure of the honeycomb ventilation tube of the present invention.
[0017] Description of reference numerals:
[0018] Reference numerals in the figure: furnace body 11; smoke exhaust port 12; furnace 13; pressurized air pipe 14; supercharger 15; first ventilation duct 16; tee 17; second ventilation duct 18; ash cleaning port 19; bottom interlayer 20; third ventilation duct 21; honeycomb ventilation pipe 22; pipe body 221; small ventilation port 222; switch regulating valve 23. DETAILED DESCRIPTION
[0019] A specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.
[0020] Example:
[0021] like Figure 1-4 As shown, an embodiment of the present invention provides a bottom air intake anti-smoke backflow air intake booster fireplace, comprising a furnace body, the furnace body comprising a furnace body 11, a smoke exhaust port 12 and a furnace 13, wherein a booster air pipe 14 and a switch regulating valve 23 are arranged in the smoke exhaust port 12, the air outlet height of the booster air pipe 14 is higher than the height 13 of the furnace and higher than the closing height of the switch regulating valve 23, and the booster air pipe 14 is connected to a booster 15; the booster can be a fan, and the smoke exhaust port 12 is a smoke exhaust pipe mounting body, which is protruding from the furnace body 11 and is located at an upper part of one side of the furnace body 11;
[0022] The supercharger 15 is connected to the first ventilation duct 16 and the second ventilation duct 18 through a tee 17. The second ventilation duct 18 is used to transport the airflow into the furnace 13. The second ventilation duct 18 is located at the bottom of the furnace body 11, and enters the furnace 13 through a bottom interlayer 20 at the bottom of the furnace 13. The bottom interlayer 20 is connected to the honeycomb ventilation pipe 22 of the furnace 13 through a third ventilation duct 21.
[0023] Specifically, the smoke exhaust port 12 is located at the upper rear portion of the furnace body 11 , the supercharger 15 and the smoke exhaust port 12 are located at the same side of the furnace body 11 , and are connected to the smoke exhaust pipe installation body through the first ventilation duct 16 .
[0024] In some embodiments, a cleaning port 19 is provided on one side of the smoke exhaust port 12, through which cleaning is facilitated.
[0025] Specifically, the honeycomb ventilation pipe 22 includes a pipe body 221 and a plurality of small ventilation openings 222 distributed on the pipe body 221 . The third ventilation duct 21 is located on the side of the furnace body 11 .
[0026] The main principle of the present invention is that the supercharger 15 provides a high-pressure airflow to the boosting air pipe 14 through the three-way 17 and the first ventilation duct 16. Since the outlet height of the boosting air pipe 14 is higher than the height 13 of the furnace, the high-pressure airflow will not enter the furnace 13, will not affect the combustion in the furnace 13, and will not take away too much heat in the furnace 13. The high-pressure airflow is blown into the smoke pipe, thereby increasing the flow rate of the gas inside the smoke pipe to the outside, achieving the purpose of preventing smoke return;
[0027] The supercharger 15 supplies oxygen to the furnace 13 through the tee 17, the second ventilation duct 18, the third ventilation duct 21 and the honeycomb ventilation pipe 22, so as to achieve full combustion.
[0028] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.
Claims
1. A bottom air intake and anti-return smoke intake and pressurized fireplace, comprising a furnace body, wherein the furnace body comprises a furnace body (11), a smoke exhaust port (12) and a furnace chamber (13), characterized in that: The smoke exhaust port (12) is provided with a pressurized air pipe (14) and a switch regulating valve (23); the air outlet height of the pressurized air pipe (14) is higher than the height of the furnace (13) and higher than the closing height of the switch regulating valve (23); the pressurized air pipe (14) is connected to a supercharger (15); the smoke exhaust port (12) is a smoke exhaust pipe installation body, which protrudes from the furnace body (11) and is located at an upper part of one side of the furnace body (11); The supercharger (15) is connected to the first ventilation duct (16) and the second ventilation duct (18) via a tee (17); the second ventilation duct (18) is used to convey airflow into the furnace (13); the second ventilation duct (18) is located at the bottom of the furnace body (11), and enters the furnace (13) through a bottom interlayer (20) at the bottom of the furnace (13); the bottom interlayer (20) is connected to a honeycomb ventilation pipe (22) of the furnace (13) via a third ventilation duct (21).
2. The bottom air intake and anti-smoke backflow pressure-boosting fireplace according to claim 1, characterized in that: The smoke exhaust port (12) is located at the upper rear portion of the furnace body (11), the supercharger (15) and the smoke exhaust port (12) are located on the same side of the furnace body (11), and are connected to the smoke exhaust pipe installation body through a first ventilation duct (16).
3. The bottom air intake and anti-smoke backflow pressure-boosting fireplace according to claim 2, characterized in that: A ash cleaning port (19) is provided on one side of the smoke exhaust port (12).
4. The bottom air intake and anti-smoke backflow pressure-boosting fireplace according to claim 1, characterized in that: The honeycomb ventilation pipe (22) comprises a pipe body (221) and a plurality of small ventilation openings (222) distributed on the pipe body (221); the third ventilation duct (21) is located on the side of the furnace body (11).
5. A bottom air intake and anti-smoke backflow pressure-boosting fireplace according to any one of claims 1 to 4, characterized in that: The supercharger (15) is a fan.