A biomass gas boiler condenser

Abstract

This utility model discloses a condenser for a biomass gas-fired boiler, belonging to the technical field of biomass gas-fired boilers. It includes a housing with an air-cooled chamber and a water-cooled chamber inside. Both the air-cooled and water-cooled chambers are fitted with heat exchange copper tubes, with both ends extending to the outside of the housing. Multiple sets of first heat exchange fins are fixedly fitted onto the outer side of the heat exchange copper tubes within the air-cooled chamber. In this utility model, the flue gas to be condensed is guided through the heat exchange copper tubes, and a blower fan blows air into the air-cooled chamber. Heat exchange occurs between the airflow and the flue gas within the heat exchange copper tubes, thus air-cooling the flue gas. Conversely, water exchange occurs between the water within the water-cooled chamber and the flue gas within the heat exchange copper tubes, thus water-cooling the flue gas and ensuring effective condensation of the flue gas.

Description

Technical Field

[0001] This utility model relates to the field of biomass gas boiler technology, and more specifically, to a biomass gas boiler condenser. Background Technology

[0002] A biomass gas boiler is a type of boiler that uses biomass gas as fuel, primarily for generating heat or steam. Biomass gas is a combustible gas produced through the gasification of solid biomass feedstock. The main function of the condenser in a biomass gas boiler is to recover heat from the flue gas, improving the boiler's thermal efficiency, thereby saving fuel and reducing emissions.

[0003] Utility model patent CN215175175U discloses a biomass gas boiler condenser, including a housing, a motor, a storage device, a feed pipe, a discharge pipe, a temperature transfer device, a filter device, pipes, and a support column. The motor is located above the housing, the feed pipe is located on the left side of the housing, and the discharge pipe is located below the feed pipe. The storage device consists of a drain outlet, a leak hole, and a storage trough. Pipes are located inside the housing. The temperature transfer device consists of a copper plate, holes, and through holes. A support column is located inside the housing, and a rotating shaft is located outside the support column. Fan blades are located outside the rotating shaft. A filter device is located outside the housing, comprising a filter screen, a rubber ring, and external threads. The main advantage of installing the storage device at the bottom of the housing is that it can collect the wastewater generated from water vapor inside the housing, preventing the housing from rusting due to water immersion and allowing for the reuse of the collected wastewater. However, the aforementioned patents have the following shortcomings: relying solely on air to recover heat from flue gas is ineffective, and the air contains a certain amount of dust, causing the filter to become clogged after a period of time, making frequent cleaning inconvenient. Therefore, we propose a condenser for a biomass gas boiler. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a condenser for a biomass gas boiler.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A biomass gas boiler condenser includes a housing with an air-cooled chamber and a water-cooled chamber inside. Both the air-cooled and water-cooled chambers are fitted with heat exchange copper tubes, with both ends extending to the outside of the housing. Multiple sets of first heat exchange fins are fixedly fitted onto the outer side of the heat exchange copper tubes within the air-cooled chamber, and multiple sets of second heat exchange fins are fixedly fitted onto the outer side of the heat exchange copper tubes within the water-cooled chamber. A temperature sensor is fixedly installed on the inner wall of the water-cooled chamber. An exhaust pipe is fixedly fitted onto the outer side of the housing, with its end extending into the inner cavity of the air-cooled chamber. A blower mechanism is provided on the outer side of the housing.

[0007] As a preferred embodiment of this utility model, the blower mechanism includes a mounting cylinder fixedly sleeved on the outside of the housing, one end of the mounting cylinder extending into the inner cavity of the air-cooling chamber, and a filter box fixedly sleeved on the other end of the mounting cylinder. The filter box has an air intake hole in the middle, and a blower fan is fixedly installed in the inner cavity of the mounting cylinder. The filter box has two winding chambers inside, and winding drums are rotatably connected to the inner cavities of the two winding chambers respectively. Long strip filter screens are wound on the two winding drums, and the middle of the long strip filter screens is movably sleeved into the inner cavity of the air intake hole. A servo motor is fixedly installed on the top surface of the filter box, and the output shaft of the servo motor is connected to one end of a winding drum shaft through a coupling.

[0008] As a preferred embodiment of this utility model, the sides of the winding drum are provided with slot blocks, and the sides of the slot blocks are threaded with multiple bolts, with the ends of the long strip filter screen sleeved inside the slot blocks.

[0009] As a preferred embodiment of this utility model, a first drain valve is fixedly installed on the side of the box, the end of the first drain valve extending to the bottom of the air-cooled inner cavity; a second drain valve is fixedly installed on the side of the box, the end of the second drain valve extending to the bottom of the water-cooled inner cavity; a water plug is threadedly installed on the outer side of the box, the end of the water plug extending to the top of the water-cooled inner cavity.

[0010] As a preferred embodiment of this utility model, a control panel is fixedly installed on the outside of the housing, and the control panel is electrically connected to the servo motor, the temperature sensor, and the blower fan.

[0011] As a preferred embodiment of this utility model, the filter box is hinged to a material changing door on its outer side and on the outside of the winding chamber.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] (1) In this utility model, the flue gas to be condensed is guided by the heat exchange copper tube, and the fan blows air into the inner cavity of the air-cooling chamber. The air force and the flue gas in the inner cavity of the heat exchange copper tube are used to exchange heat, thereby air-cooling the flue gas in the heat exchange copper tube. In addition, the water in the inner cavity of the water-cooling chamber is used to exchange heat with the flue gas in the heat exchange copper tube, thereby water-cooling the flue gas in the heat exchange copper tube, ensuring the effect of condensing the flue gas.

[0014] (2) In this utility model, the air drawn in by the blower is filtered by the long strip filter screen. In addition, a servo motor is used to drive a winding drum to rotate at regular intervals. The winding drum is used to wind up the long strip filter screen inside the air intake hole and release the long strip filter screen on another winding drum. This allows the new long strip filter screen to move into the air intake hole, ensuring the quality of air filtration by the air intake hole and eliminating the need for frequent cleaning of the filter screen. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the front of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the back of this utility model;

[0017] Figure 3 This is a cross-sectional view of the housing of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the heat exchange copper tube of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the filter box of this utility model;

[0020] Figure 6 This is a cross-sectional schematic diagram of the filter box of this utility model;

[0021] Figure 7 This is a schematic diagram showing the disassembled winding drum and long strip filter screen of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Housing; 2. Air-cooled chamber; 3. Water-cooled chamber; 4. Heat exchange copper tube; 5. First heat exchange fin; 6. Second heat exchange fin; 7. Blower mechanism; 8. Exhaust pipe; 9. Temperature sensor; 10. Mounting cylinder; 11. Filter box; 12. Air intake hole; 13. Blower fan; 14. Winding chamber; 15. Winding drum; 16. Long strip filter screen; 17. Servo motor; 18. Slot block; 19. Bolt; 20. Material changing door; 21. Control panel; 22. First drain valve; 23. Second drain valve; 24. Water plug. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1:

[0028] Please see Figure 1-7 A biomass gas boiler condenser includes a housing 1, an air-cooled chamber 2 and a water-cooled chamber 3 inside the housing 1. Heat exchange copper tubes 4 are fitted inside both the air-cooled chamber 2 and the water-cooled chamber 3. Both ends of the heat exchange copper tubes 4 extend to the outside of the housing 1. Multiple sets of first heat exchange fins 5 are fixedly fitted onto the outside of the heat exchange copper tubes 4 and inside the air-cooled chamber 2. Multiple sets of second heat exchange fins 6 are fixedly fitted onto the outside of the heat exchange copper tubes 4 and inside the water-cooled chamber 3. A temperature sensor 9 is fixedly installed on the inner wall of the water-cooled chamber 3. An exhaust pipe 8 is fixedly fitted onto the outside of the housing 1, with its end extending into the inside of the air-cooled chamber 2. A blower mechanism 7 is provided on the outside of the housing 1.

[0029] For details, please refer to Figures 1 to 7The blower mechanism 7 includes a mounting cylinder 10 fixedly sleeved on the outside of the housing 1. One end of the mounting cylinder 10 extends into the inner cavity of the air-cooling chamber 2. The other end of the mounting cylinder 10 is fixedly sleeved with a filter box 11. An air suction hole 12 is provided in the middle of the filter box 11. A blower fan 13 is fixedly installed in the inner cavity of the mounting cylinder 10. The filter box 11 has two winding chambers 14. The inner cavities of the two winding chambers 14 are rotatably connected to winding drums 15. Long strip filter screens 16 are wound on the two winding drums 15. The middle part of the long strip filter screen 16 is movably sleeved into the inner cavity of the air suction hole 12. A servo motor 17 is fixedly installed on the top surface of the filter box 11. The output shaft of the servo motor 17 is connected to one end of the shaft of a winding drum 15 through a coupling.

[0030] In this embodiment, a slot is provided between the two winding chambers 14 for the movement of the long strip filter screen 16, ensuring that the long strip filter screen 16 can be moved.

[0031] For details, please refer to Figure 7 The sides of the winding drum 15 are provided with slot blocks 18, and the sides of the slot blocks 18 are threaded with multiple bolts 19. The ends of the long strip filter screen 16 are fitted inside the slot blocks 18.

[0032] In this embodiment, the end of the long strip filter screen 16 is connected to the winding drum 15 by the cooperation of the slot block 18 and the bolt 19, so that the long strip filter screen 16 is wound on the winding drum 15.

[0033] For details, please refer to Figure 2 and Figure 3 A first drain valve 22 is fixedly installed on the side of the housing 1, and the end of the first drain valve 22 extends to the bottom of the inner cavity of the air-cooled chamber 2. A second drain valve 23 is fixedly installed on the side of the housing 1, and the end of the second drain valve 23 extends to the bottom of the inner cavity of the water-cooled chamber 3. A water plug 24 is threadedly installed on the outer side of the housing 1, and the end of the water plug 24 extends to the top of the inner cavity of the water-cooled chamber 3.

[0034] In this embodiment, the water generated by condensation at the bottom of the air-cooled chamber 2 is discharged through the first drain valve 22, the warm water in the water-cooled chamber 3 is discharged through the second drain valve 23, and water is added to the water-cooled chamber 3 by removing the water plug 24.

[0035] For details, please refer to Figures 1 to 4 A control panel 21 is fixedly installed on the outside of the housing 1. The control panel 21 is electrically connected to the servo motor 17, the temperature sensor 9, and the blower 13.

[0036] In this embodiment, the control panel 21 is used to control the servo motor 17 and the fan 13. At the same time, the control panel 21 is used to display the temperature detected by the temperature sensor 9. In addition, the power supply of the peripheral device is used to supply power to the control panel 21, the servo motor 17, the temperature sensor 9, and the fan 13.

[0037] For details, please refer to Figure 1 and Figure 6 A material changing door 20 is hinged to the outside of the filter box 11 and to the outside of the inner cavity of the winding chamber 14.

[0038] In this embodiment, the long strip filter screen 16 is installed and removed by opening the material replacement door 20.

[0039] Working principle: In use, firstly, one end of the long strip filter 16 is inserted into the slot 18 on the side of a take-up drum 15. The rotating bolt 19 presses and fixes one end of the long strip filter 16, causing it to rotate and wrap around the outside of the take-up drum 15. The other end of the long strip filter 16 extends through the inner cavity of the suction hole 12 to the inner cavity of another take-up chamber 14, inserting it into the slot 18 on the side of the other take-up drum 15. The bolt 19 connects the other end of the long strip filter 16 to the take-up drum 15. Then, the flue gas generated by the biomass gas boiler is introduced into the heat exchange copper tube 4, allowing the flue gas to flow within it. Simultaneously, the blower fan 13 blows air into the inner cavity of the air-cooled chamber 2, utilizing the air and the flue gas inside the heat exchange copper tube 4 for heat exchange, thereby purifying the flue gas. The process involves condensation, with the rear of the fan 13 drawing air in from the outside. The long strip filter 16 inside the suction port 12 filters dust from the air. Then, the flue gas, after being condensed by air cooling, exchanges heat with water in the water-cooled chamber 3 through the heat exchange copper tube 4, allowing the water to condense the flue gas. Finally, the servo motor 17 is started at a set time, rotating a winding drum 15. The winding drum 15 winds the long strip filter 16, winding it onto the outside of the drum 15, while releasing the long strip filter 16 from another winding drum 15. This allows a new long strip filter 16 to move into the inner cavity of the suction port 12, ensuring the quality of air filtration by the suction port 12. The long strip filter 16 wound on the winding drum 15 can be removed for cleaning later.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A condenser for a biomass gas boiler, comprising a housing (1), characterized in that: The box (1) is provided with an air-cooled chamber (2) and a water-cooled chamber (3). The inner cavities of the air-cooled chamber (2) and the water-cooled chamber (3) are fitted with heat exchange copper tubes (4). The two ends of the heat exchange copper tubes (4) extend to the outside of the box (1). Multiple sets of first heat exchange fins (5) are fixedly fitted on the outside of the heat exchange copper tubes (4) and in the inner cavity of the air-cooled chamber (2). Multiple sets of second heat exchange fins (6) are fixedly fitted on the outside of the heat exchange copper tubes (4) and in the inner cavity of the water-cooled chamber (3). A temperature sensor (9) is fixedly installed on the inner wall of the water-cooled chamber (3). An exhaust pipe (8) is fixedly fitted on the outside of the box (1). The end of the exhaust pipe (8) extends to the inner cavity of the air-cooled chamber (2). A blower mechanism (7) is provided on the outside of the box (1).

2. The condenser for a biomass gas boiler according to claim 1, characterized in that: The blower mechanism (7) includes a mounting cylinder (10) fixedly sleeved on the outside of the housing (1). One end of the mounting cylinder (10) extends into the inner cavity of the air-cooling chamber (2). The other end of the mounting cylinder (10) is fixedly sleeved with a filter box (11). The filter box (11) has an air suction hole (12) in the middle. A blower (13) is fixedly installed in the inner cavity of the mounting cylinder (10). The filter box (11) has two winding chambers (14) inside. The inner cavities of the two winding chambers (14) are respectively rotatably connected to winding drums (15). Long strip filter screens (16) are wound around the two winding drums (15). The middle part of the long strip filter screens (16) is movably sleeved into the inner cavity of the air suction hole (12). A servo motor (17) is fixedly installed on the top surface of the filter box (11). The output shaft of the servo motor (17) is connected to one end of the shaft of a winding drum (15) through a coupling.

3. A biomass gas boiler condenser according to claim 2, characterized in that: The sides of the winding drum (15) are provided with slot blocks (18), and the sides of the slot blocks (18) are threaded with multiple bolts (19). The end of the long strip filter screen (16) is sleeved on the inside of the slot blocks (18).

4. A biomass gas boiler condenser according to claim 1, characterized in that: A first drain valve (22) is fixedly installed on the side of the housing (1), with the end of the first drain valve (22) extending to the bottom of the air-cooled chamber (2). A second drain valve (23) is fixedly installed on the side of the housing (1), with the end of the second drain valve (23) extending to the bottom of the water-cooled chamber (3). A water plug (24) is threadedly installed on the outside of the housing (1), with the end of the water plug (24) extending to the top of the water-cooled chamber (3).

5. A biomass gas boiler condenser according to claim 2, characterized in that: A control panel (21) is fixedly installed on the outside of the housing (1). The control panel (21) is electrically connected to the servo motor (17), the temperature sensor (9), and the blower (13).

6. A biomass gas boiler condenser according to claim 2, characterized in that: The filter box (11) is hinged to a material changing door (20) on the outside of the inner cavity of the winding chamber (14).

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