Temperature-adjustable hot blast stove

Abstract

The hot blast stove comprises a stove body, a spiral pipe is fixed in the stove body, an air outlet pipe and an air inlet pipe are fixed to the side wall of the stove body, the upper end and the lower end of the spiral pipe communicate with the air outlet pipe and the air inlet pipe correspondingly, a second fan for controlling the air inlet amount of the air inlet pipe is fixed to the outer wall of the stove body, and a water storage pipe is fixed in the spiral pipe; according to the scheme, air in the spiral pipe is heated, hot air is discharged through the air outlet pipe by the second fan, heat exchange between the air in the spiral pipe and the furnace body needs time, the temperature of the discharged hot air can be adjusted by controlling the air inlet and outlet speed of the second fan, and the temperature of the discharged hot air can be adjusted by controlling the air inlet and outlet speed of the second fan. The flowing speed of airflow in the furnace body can be controlled by controlling the air inlet speed of the first fan, so that the temperature in the furnace body is controlled, the temperature of air in the spiral pipe can be indirectly adjusted, water is injected into the water storage pipe through the water storage box, the evaporation effect of water is accelerated through hot air, and the hot air is discharged into a room through the second fan along with the hot air.

Description

Technical Field

[0001] The present application relates to the technical field of hot blast stoves, and in particular to a temperature-adjustable hot blast stove. Background Art

[0002] A hot air furnace is a thermal power machine that generates high-temperature hot air through fuel combustion, heats cold air, and then transports it to the required space to increase the temperature of the surrounding environment. Hot air furnaces can be divided into direct high-purification hot air furnaces and indirect hot air furnaces. Direct hot air furnaces use fuel to directly burn and form hot air through high-purification treatment; indirect hot air furnaces use steam, thermal oil, flue gas, etc. as carriers to heat the air through various forms of heat exchangers. The hot air furnace involved in this application is an indirect hot air furnace.

[0003] Publication No. 'CN218763990U' discloses a temperature-adjustable hot air furnace that uses a temperature controller and a PLC to more stably adjust the air volume, thereby controlling temperature fluctuations. However, this hot air furnace only regulates the temperature of the hot air output by controlling the air volume entering the air inlet duct, resulting in low control efficiency. Furthermore, when the hot air furnace is in use, the indoor air becomes relatively dry, affecting the comfort of the living environment. Therefore, to address this issue, the present application provides a temperature-adjustable hot air furnace. Utility Model Content

[0004] In order to solve the problem that the temperature regulation efficiency is low and the hot air causes indoor dryness, the present application provides a hot air stove with adjustable temperature.

[0005] The present application provides a temperature-adjustable hot air furnace, comprising a furnace body, a spiral tube fixedly arranged inside the furnace body, an air outlet pipe and an air inlet pipe fixedly arranged on the side wall of the furnace body, the upper and lower ends of the spiral tube being connected to the air outlet pipe and the air inlet pipe respectively, a second fan for controlling the air intake volume of the air inlet pipe being fixedly arranged on the outer wall of the furnace body, a water storage pipe fixedly arranged inside the spiral tube, the upper end of the water storage pipe being unsealed, a water storage box fixedly arranged on the outer wall of the furnace body, and the water storage pipe being connected to the water storage box.

[0006] Preferably, the side wall of the furnace body is fixedly provided with an air inlet, the upper wall of the furnace body is fixedly provided with a smoke exhaust port, the interior of the furnace body is connected to the outside through the air inlet and the smoke exhaust port, and the outer wall of the furnace body is fixedly provided with a first fan that controls the air intake volume of the air inlet.

[0007] Preferably, a coal inlet is fixedly provided on the side wall of the furnace body, and the coal inlet is communicated with the interior of the furnace body.

[0008] Preferably, the side wall of the furnace body is provided with an opening fan that rotates to open.

[0009] Preferably, the furnace body is fixedly provided with a grate, and the height of the grate is located between the coal inlet and the opening fan.

[0010] Preferably, a temperature sensor is fixedly installed inside the furnace body.

[0011] In summary, this application has the following beneficial technical effects:

[0012] Coal is added through the coal inlet, and the temperature in the furnace body rises after ignition, thereby heating the air in the spiral tube. The second fan is started, and cold air is sucked in while the hot air is discharged through the air outlet pipe. Since the heat exchange between the air in the spiral tube and the temperature in the furnace body takes time, the temperature of the discharged hot air can be adjusted by controlling the air inlet and outlet rates of the second fan. The air flow speed in the furnace body can be controlled by controlling the air inlet rate of the first fan, thereby controlling the temperature in the furnace body, and indirectly adjusting the temperature of the air in the spiral tube.

[0013] Water is injected into the water storage pipe through the water storage box. The hot air in the spiral tube will accelerate the evaporation of water. The hot air is discharged into the room through the second fan, thereby increasing the indoor humidity and avoiding the impact of dry indoor air on environmental comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0015] Figure 2 This is a schematic diagram of the internal structure of Example 1 of the present application;

[0016] Figure 3 This is a cross-sectional view of the internal structure in Example 1 of the present application.

[0017] Explanation of the accompanying symbols: 1. furnace body; 2. smoke exhaust port; 3. coal inlet; 4. opening fan; 5. air inlet; 6. first fan; 7. grate; 8. air outlet pipe; 9. spiral tube; 10. water storage box; 11. second fan; 12. air inlet pipe; 13. temperature sensor; 14. water storage pipe. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-3 This application is described in further detail.

[0019] Example 1

[0020] Reference Figure 1-3A temperature-adjustable hot blast furnace comprises a furnace body 1, with a rotatably opened fan 4 provided on the side wall of the furnace body 1. The fan 4 is used to introduce a fire source and remove ash. A coal inlet 3 is fixedly provided on the side wall of the furnace body 1 and communicates with the interior of the furnace body 1, allowing fuel to be added to the furnace body 1 through the coal inlet 3. A grate 7 is fixedly provided on the furnace body 1, with the height of the grate 7 being located between the coal inlet 3 and the fan 4. The arrangement of the grate 7 ensures that the fuel added through the coal inlet 3 is located above the grate 7, thereby improving the combustion effect.

[0021] A spiral tube 9 is fixedly installed inside the furnace body 1, providing excellent thermal conductivity. An air outlet duct 8 and an air inlet duct 12 are fixedly installed on the side walls of the furnace body 1. The upper and lower ends of the spiral tube 9 are connected to the air outlet duct 8 and the air inlet duct 12 respectively. A second fan 11 is fixedly installed on the outer wall of the furnace body 1 to control the air intake of the air inlet duct 12. Second fan 11 is a variable frequency fan with adjustable air intake and output.

[0022] A water storage pipe 14 is fixedly mounted inside the spiral tube 9. This pipe has excellent thermal conductivity. The upper end of the pipe is unsealed to facilitate water evaporation. A water storage box 10 is fixedly mounted on the outer wall of the furnace body 1. The pipe 14 is connected to the box and houses a water pump.

[0023] An air inlet 5 is fixedly mounted on the side wall of furnace body 1, and a smoke exhaust port 2 is fixedly mounted on the upper wall of furnace body 1. The interior of furnace body 1 communicates with the exterior through air inlet 5 and smoke exhaust port 2, which in turn communicates with an external smoke exhaust pipe. A first fan 6, which controls the air intake through air inlet 5, is fixedly mounted on the outer wall of furnace body 1. This first fan 6 is a variable frequency fan with adjustable airflow. A one-way valve is installed at the connection between first fan 6 and air inlet 5 to prevent dust from entering the fan 6 and affecting its operation.

[0024] A temperature sensor 13 is fixedly installed inside the furnace body 1. The temperature sensor 13 is an existing mature technology. The temperature sensor 13 is resistant to high temperatures and can transmit the temperature of the furnace body 1 to an external receiver in real time and display it in real time. The temperature of the furnace body 1 is adjusted according to the displayed temperature, thereby adjusting the temperature of the exhaust hot air.

[0025] During actual use, coal is first added through the coal inlet 3, and the fire source is put into the furnace body 1 by opening the fan 4. After ignition, the temperature inside the furnace body 1 rises, thereby transferring heat to the spiral tube 9. The air inside the spiral tube 9 heats up, and the second fan 11 is started. It sucks in cold air while discharging hot air through the air outlet pipe 8. Since the heat transfer between the air in the spiral tube 9 and the inside of the furnace body 1 takes time, the temperature of the discharged hot air can be adjusted by controlling the air inlet and outlet rates of the second fan 11, and the air flow speed in the furnace body 1 can be controlled by controlling the air inlet rate of the first fan 6. The faster the air flow speed, the lower the temperature in the furnace body 1, thereby controlling the temperature in the furnace body 1 through the first fan 6, and indirectly adjusting the temperature of the air in the spiral tube 9.

[0026] When the indoor air is relatively dry, water is injected into the water storage pipe 14 through the water storage box 10. The hot air in the spiral tube 9 will accelerate the evaporation of water, and the hot air is discharged into the room through the action of the second fan 11, thereby increasing the indoor humidity and avoiding the impact of dry indoor air on the comfort of the environment.

[0027] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0028] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0029] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0030] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A temperature-adjustable hot air furnace, comprising a furnace body (1), characterized in that: A spiral tube (9) is fixedly provided inside the furnace body (1), an air outlet pipe (8) and an air inlet pipe (12) are fixedly provided on the side wall of the furnace body (1), the upper and lower ends of the spiral tube (9) are respectively connected to the air outlet pipe (8) and the air inlet pipe (12), a second fan (11) for controlling the air intake volume of the air inlet pipe (12) is fixedly provided on the outer wall of the furnace body (1), a water storage pipe (14) is fixedly provided inside the spiral tube (9), the upper end of the water storage pipe (14) is not sealed, a water storage box (10) is fixedly provided on the outer wall of the furnace body (1), and the water storage pipe (14) is connected to the water storage box (10).

2. The temperature-adjustable hot air stove according to claim 1, characterized in that: An air inlet (5) is fixedly provided on the side wall of the furnace body (1), a smoke exhaust port (2) is fixedly provided on the upper wall of the furnace body (1), the interior of the furnace body (1) is connected to the outside through the air inlet (5) and the smoke exhaust port (2), and a first fan (6) for controlling the air intake volume of the air inlet (5) is fixedly provided on the outer wall of the furnace body (1).

3. The temperature-adjustable hot air stove according to claim 1, characterized in that: A coal inlet (3) is fixedly provided on the side wall of the furnace body (1), and the coal inlet (3) is communicated with the interior of the furnace body (1).

4. The temperature-adjustable hot air stove according to claim 3, characterized in that: The side wall of the furnace body (1) is provided with an opening fan (4) that is rotated to open.

5. The temperature-adjustable hot air stove according to claim 4, characterized in that: The furnace body (1) is fixedly provided with a grate (7), and the height of the grate (7) is located between the coal inlet (3) and the opening fan (4).

6. The temperature-adjustable hot air stove according to claim 1, characterized in that: A temperature sensor (13) is fixedly arranged inside the furnace body (1).

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