A pellet furnace device with automatic temperature control function

Abstract

This application relates to a pellet furnace device with automatic temperature control function, including a furnace body, a feeding mechanism, a temperature control mechanism, a combustion mechanism, and a waste heat recovery mechanism. The feeding mechanism is installed on the furnace body and is fixedly connected to the furnace body. The combustion mechanism is installed on the furnace body and is fixedly connected to the furnace body. The temperature control mechanism is installed on the furnace body and is detachably connected to the furnace body. The waste heat recovery mechanism is installed on the furnace body and is fixedly connected to the furnace body. This application has the technical effects of material saving and temperature control.

Description

Technical Field

[0001] This application relates to the field of temperature control technology, and in particular to a pellet furnace device with automatic temperature control function. Background Technology

[0002] With the increasing demand for energy utilization and environmentally friendly heating, pellet stoves are widely used in various fields due to their advantages such as high combustion efficiency and low pollution emissions from using biomass pellet fuel.

[0003] However, traditional pellet furnace devices still have many bottlenecks. On the one hand, most traditional pellet furnaces lack a precise automatic temperature control system and cannot flexibly adjust the furnace temperature according to actual needs. This not only leads to energy waste, but may also affect the service life of the equipment or cause safety hazards due to excessive temperature. On the other hand, a large amount of waste heat generated during combustion is not effectively recovered and utilized, resulting in secondary energy waste, which is not in line with the development trend of energy conservation and emission reduction.

[0004] Regarding the aforementioned technologies, the applicant believes that they suffer from energy waste. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a pellet furnace device with automatic temperature control function.

[0006] This application provides a pellet furnace device with automatic temperature control function, which adopts the following technical solution:

[0007] A pellet furnace device with automatic temperature control function includes a furnace body, a feeding mechanism, a temperature control mechanism, a combustion mechanism, and a waste heat recovery mechanism. The feeding mechanism is installed on the furnace body and is fixedly connected to the furnace body. The combustion mechanism is installed on the furnace body and is fixedly connected to the furnace body. The temperature control mechanism is installed on the furnace body and is detachably connected to the furnace body. The waste heat recovery mechanism is installed on the furnace body and is fixedly connected to the furnace body.

[0008] By adopting the above technical solutions, the feeding mechanism realizes automated fuel delivery, ensuring a stable and continuous fuel supply and supporting continuous operation of the pellet furnace. The temperature control mechanism monitors and automatically adjusts the furnace temperature in real time to maintain a stable combustion environment, improve energy utilization efficiency and ensure safe use. The combustion mechanism provides the necessary conditions for complete fuel combustion, ensuring an efficient combustion process. The waste heat recovery mechanism reuses the heat emitted by the furnace body, significantly improving the overall energy utilization rate and reducing operating costs.

[0009] Preferably, the feeding mechanism includes a screw conveyor and a motor. A conveying pipe is provided on the side of the furnace body near the storage silo. The screw conveyor is installed in the conveying pipe on one side of the furnace body and is fixedly connected to the conveying pipe. The other end of the screw conveyor is fixedly connected to the motor.

[0010] By adopting the above technical solution, the biomass pellet fuel in the storage bin is quantitatively transported into the furnace body by a screw conveyor driven by a motor. This mechanism realizes the automatic supply of fuel, avoiding the tediousness of manual feeding. At the same time, the feed rate can be controlled by adjusting the motor speed, thereby manually adjusting the combustion intensity.

[0011] Preferably, the combustion mechanism includes a grate, a ventilation pipe, and a flue pipe. The grate is located inside the furnace body at the bottom, and handles are provided on both sides of the grate. A hole is provided on the furnace body corresponding to the handle, and the handle extends out from the hole. The ventilation pipe and the flue pipe are both installed on the furnace body and are fixedly connected to the furnace body.

[0012] Preferably, the ventilation pipe has an opening on the side near the furnace body, and a thin cover plate is provided at the opening, which is hinged to the ventilation pipe.

[0013] By adopting the above technical solutions, the grate supports the fuel for complete combustion. The grate can be rotated by the handle, which makes it easy to collect ash and help the staff clean it. The ventilation pipe provides combustion air. The thin cover can automatically adjust the opening state according to the pressure of the ventilation pipe. When the air pressure is too high, the thin cover will automatically open to help regulate the air pressure. The exhaust pipe discharges combustion exhaust gas and optimizes the combustion environment.

[0014] Preferably, the temperature control mechanism includes a temperature sensing piston cylinder and a baffle. The temperature sensing piston cylinder is filled with a boiling point liquid. It also includes a movable piston, and the piston and the baffle are fixedly connected and installed at the same horizontal line. When the movable piston is not working, the baffle is located on one side of the combustion mechanism.

[0015] By adopting the above technical solution, the boiling liquid in the piston cylinder expands in volume when the temperature changes. The change in liquid volume pushes the piston to move horizontally, and the piston directly drives the baffle to slide synchronously. The sliding of the baffle changes and adjusts the oxygen supply, thereby achieving precise control of the combustion intensity.

[0016] Preferably, the bottom of the furnace body is provided with a funnel-shaped opening, and an ash collection trough is provided at the bottom of the furnace body, which is connected to the funnel-shaped opening flange at the bottom of the furnace body.

[0017] By adopting the above technical solution, the bottom of the furnace body is designed in a funnel shape, which allows the ash produced by combustion to fall naturally to the opening, avoiding the accumulation of ash inside the furnace body. The ash collection trough is used to store the ash that falls from the funnel-shaped opening of the furnace body, preventing ash from scattering and polluting the environment, and ensuring the cleanliness of the area around the equipment.

[0018] Preferably, the waste heat recovery mechanism includes a spiral heat exchange tube, an outlet water tank, and a storage water tank. The heat exchange tube is installed around the outside of the furnace body and is detachably connected to the furnace body. The outlet water tank and the storage water tank are installed at both ends of the heat exchange tube and are detachably connected to the heat exchange tube. The storage water tank is provided with an exhaust port.

[0019] By adopting the above technical solution, the outlet water tank provides a cool water source for the heat exchange tubes. The heat exchange tubes absorb the waste heat radiated and conducted by the furnace body through the tube wall, and transfer the heat energy to the water flowing inside the tubes. The water is then transferred to the storage tank to complete the secondary utilization of waste heat. The detachable design of the heat exchange tubes also facilitates maintenance or replacement of the pipes.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The feeding mechanism enables automated fuel delivery, ensuring a stable and continuous fuel supply and supporting continuous operation of the pellet furnace. The temperature control mechanism monitors and automatically adjusts the furnace temperature in real time to maintain a stable combustion environment, improve energy efficiency, and ensure safe operation. The combustion mechanism provides the necessary conditions for complete fuel combustion, ensuring an efficient combustion process. The waste heat recovery mechanism reuses the heat emitted by the furnace body, significantly improving the overall energy utilization rate and reducing operating costs.

[0022] 2. The grate supports the fuel for complete combustion. The grate can be rotated by the handle to facilitate the collection of ash and help workers clean it. The ventilation pipe provides combustion air. The thin cover can automatically adjust the opening state according to the pressure of the ventilation pipe. When the air pressure is too high, the thin cover will automatically open to help regulate the air pressure. The exhaust pipe discharges combustion exhaust gas and optimizes the combustion environment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall embodiment.

[0024] Figure 2 yes Figure 1 A magnified view of part A in the image.

[0025] Figure 3 This is a cross-sectional schematic diagram of the overall embodiment.

[0026] Explanation of reference numerals in the attached drawings: 1. Furnace body; 2. Feeding mechanism; 21. Screw conveyor; 22. Motor; 3. Combustion mechanism; 31. Grate; 311. Handle; 32. Ventilation pipe; 321. Thin cover plate; 33. Exhaust pipe; 4. Temperature control mechanism; 41. Temperature sensing piston cylinder; 411. Movable piston; 42. Baffle; 5. Waste heat recovery mechanism; 51. Heat exchange tube; 52. Water outlet tank; 53. Water storage tank; 54. Exhaust port; 6. Ash collection trough. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0028] This application discloses a pellet furnace apparatus with automatic temperature control function. (Refer to...) Figure 1-3 The furnace includes a furnace body 1, a feeding mechanism 2, a combustion mechanism 3, a temperature control mechanism 4, and a waste heat recovery mechanism 5. The bottom of the furnace body 1 is designed in a funnel shape to facilitate the natural sliding of ash into the ash collection trough 6, preventing ash accumulation from affecting combustion efficiency. The ash collection trough 6 is connected to the furnace body 1 by a flange, allowing for disassembly and cleaning, reducing the difficulty of manual maintenance. The feeding mechanism 2 includes a screw conveyor 21 and a motor 22. The screw conveyor 21 is installed in the conveying pipe on the side wall of the furnace body. The motor 22 is fixedly connected to one end of the screw conveyor 21 and drives its rotation, quantitatively conveying biomass pellet fuel from the storage bin into the furnace. The combustion mechanism 3 includes... The furnace includes a grate 31, a ventilation pipe 32, and a flue pipe 33. The grate 31 is installed inside the furnace body 1 at the bottom to support the fuel and promote complete combustion. The grate 31 has handles 311 on both sides and is fixedly connected to the handles 311. The furnace body 1 corresponding to the handles 311 has holes through which the handles 311 are inserted. The handles 311 can shake the grate to make the ash after combustion fall down. The ventilation pipe 32 is fixedly installed on the furnace body 1 on the side above the grate 31. The ventilation pipe 32 has a thin cover plate 321 on the side near the furnace body 1 and is fixedly connected to the ventilation pipe 32.

[0029] The temperature control mechanism 4 includes a temperature-sensing piston cylinder 41 and a baffle 42. The temperature-sensing piston cylinder 41 is filled with a boiling point liquid and also includes a movable piston 411. The boiling point liquid expands as the furnace body 1 heats up, pushing the movable piston 411 to move parallel. The other end of the movable piston 411 is fixedly connected to the baffle 42, which is located on one side of the ventilation pipe 32. When moving, the baffle 42 moves horizontally to block the ventilation pipe 32, changing the airflow and reducing the combustion conditions inside the furnace body 1. When the temperature decreases, the temperature sensor... The liquid inside the piston cylinder 41 returns to its original state, driving the movable piston 411 to resume its movement, increasing the air volume and combustion speed. The waste heat recovery mechanism 5 realizes the reuse of heat energy. The spiral heat exchange tube 51 surrounds the outer wall of the furnace body 1. The two ends of the spiral heat exchange tube 51 are connected to the outlet water tank 52 and the storage water tank 53 respectively. Cold water enters from the outlet water tank 52, absorbs the heat dissipated by the furnace body 1 and heats up, and flows into the storage water tank 53 for convenient storage and use. The exhaust port 54 is fixedly installed on the upper side of the storage water tank 53 to release steam and avoid excessive pressure.

[0030] The working principle of the pellet furnace device with automatic temperature control function in this application is as follows: The ash collection trough 6 is checked and emptied to ensure there is no blockage. The motor 22 is started, and the screw conveyor 21 begins to transport fuel into the furnace. The initial fuel is ignited, the combustion mechanism 3 starts working, and the ventilation pipe 32 provides combustion air. The heat generated by combustion causes the furnace temperature to rise. The boiling point liquid in the temperature-sensing piston cylinder 41 of the temperature control mechanism 4 expands, pushing the piston 411 to move. The baffle 32 gradually closes part of the ventilation opening, reducing the oxygen supply and stabilizing the combustion. If part of the ventilation opening is blocked... If the air pressure inside the vent is too high, the thin cover plate 321 of the vent will open under the action of the wind to release the pressure, and the exhaust pipe 33 will continuously discharge the exhaust gas, maintain the negative pressure inside the furnace, and prevent the flue gas from flowing back. Cold water enters the heat exchange tube 51 from the water outlet 52, absorbs the heat emitted by the furnace body 1, and flows into the water storage tank 53 after being heated. The high-temperature water or steam can be used for other industrial purposes to improve energy utilization. After burning for a period of time, shake the handle 311 of the grate 31 to make the ash fall into the ash collection trough 6. The ash collection trough 6 should be disassembled regularly to clean the ash and slag, so as to avoid blockage and affect the combustion efficiency.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pellet furnace device with automatic temperature control function, characterized in that: The furnace includes a furnace body (1), a feeding mechanism (2), a combustion mechanism (3), a temperature control mechanism (4), and a waste heat recovery mechanism (5). The feeding mechanism (2) is installed on the furnace body (1) and is fixedly connected to the furnace body (1). The combustion mechanism (3) is installed on the furnace body (1) and is fixedly connected to the furnace body (1). The temperature control mechanism (4) is installed on the furnace body (1) and is detachably connected to the furnace body (1). The waste heat recovery mechanism (5) is installed on the furnace body (1) and is fixedly connected to the furnace body (1).

2. The pellet furnace device with automatic temperature control function according to claim 1, characterized in that: The feeding mechanism (2) includes a screw conveyor (21) and a motor (22). A conveying pipe is provided on the side of the furnace body (1) near the storage bin. The screw conveyor (21) is installed in the conveying pipe on one side of the furnace body (1). The screw conveyor (21) is fixedly connected to the conveying pipe. The other end of the screw conveyor (21) is fixedly connected to the motor (22).

3. The pellet furnace device with automatic temperature control function according to claim 1, characterized in that: The combustion mechanism (3) includes a grate (31), a ventilation pipe (32), and a flue pipe (33). The grate (31) is located inside the furnace body (1) at the bottom. Handles (311) are provided on both sides of the grate (31). The furnace body (1) corresponding to the handles (311) has holes, and the handles (311) extend out from the holes. The ventilation pipe (32) and the flue pipe (33) are both installed on the furnace body (1), and the flue pipe (33) and the ventilation pipe (32) are both fixedly connected to the furnace body (1).

4. A pellet furnace device with automatic temperature control function according to claim 3, characterized in that: The ventilation pipe (32) has an opening on the side near the furnace body (1), and a thin cover plate (321) is provided at the opening. The thin cover plate (321) is hinged to the ventilation pipe (32).

5. A pellet furnace device with automatic temperature control function according to claim 1, characterized in that: The temperature control mechanism (4) includes a temperature sensing piston cylinder (41) and a baffle (42). The temperature sensing piston cylinder (41) is filled with a boiling point liquid and also includes a movable piston (411). The piston and the baffle (42) are fixedly connected and installed at the same horizontal line. When the movable piston is not working, the baffle (42) is located on one side of the combustion mechanism (3).

6. A pellet furnace device with automatic temperature control function according to claim 1, characterized in that: The bottom of the furnace body (1) is provided with a funnel-shaped opening, and an ash collection trough (6) is provided at the bottom of the furnace body (1). The ash collection trough (6) is connected to the funnel-shaped opening flange at the bottom of the furnace body (1).

7. A pellet furnace device with automatic temperature control function according to claim 1, characterized in that: The waste heat recovery mechanism (5) includes a spiral heat exchange tube (51), a water outlet tank (52), and a water storage tank (53). The heat exchange tube (51) is installed around the outside of the furnace body (1) and is detachably connected to the furnace body (1). The water outlet tank (52) and the water storage tank (53) are respectively installed at both ends of the heat exchange tube (51) and are detachably connected to the heat exchange tube (51). The water storage tank (53) is provided with an exhaust port (54).

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