KR20010104391A - Fan heater use coal for solid fuel & it's control system - Google Patents

Abstract

The present invention relates to a hot air fan that is installed inside a greenhouse and supplies air heated to an appropriate temperature. The heat exchanger uses a solid fuel as a main fuel to improve thermal efficiency and minimize contaminants in exhaust gas exhausted. It is a warm fan with a built-in pipe.

The hot air blower according to the present invention is provided with a blower in the upper part of the main body to supply the blowing and circulating air of the warm air, install a plurality of pipes in which the heat exchange and exhaust gas is discharged in multiple stages in the horizontal direction and dust at both ends of the heat exchange pipe The sinking chamber is provided so that it can be collected by falling down, and the sinking chamber is configured to open the front plate so that it can be periodically inspected and cleaned. The grate of the combustion chamber has a double structure. It forms a sealant that can stay and has a structure in which combustion material can be discharged by gravity, and a screw feeder is interlocked so that the combustion material can also be discharged when fuel is supplied. In addition, a temperature controller is installed between the heat exchanger and the outer wall to control the temperature of the hot air, and it is equipped with a timer for detecting the temperature of the room for heating, a controller for controlling the temperature, and a multi-stage controller. It is equipped with a timer and a controller to control the heating fan and control system that has the characteristics to make it possible to smoothly control the heating value, rapid heating, standby state.

Description

Fan heater use coal for solid fuel & it's control system

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air fan and a control system of a hot air fan for supplying warm air to a place requiring heating of a suitable temperature such as a greenhouse, and more particularly, to using solid fuel as a fuel. Existing briquette stoves that use solid fuels are not only cumbersome to replace, but also easily contaminate the room due to leakage of combustion gases, harm crops, and oil and liquid fuels. Although there is little concern about it, there is a disadvantage in that the maintenance cost is high. In addition, the existing lignite stove using some solid fuels is not as convenient as a hot air fan using liquid fuel, but a device for supplying fuel and exhausting combustion materials and a device for removing exhaust gas and dust are essential. The device is complex and the price of equipment is high.

In order to solve the above problems, the combustion material is discharged from the grate by the driving force and the gravity of the fuel supply device to simplify the structure, increase the thermal efficiency, and remove the dust in the combustion gas. Settling chambers are installed at both ends of the heat exchanger.

In addition, it is possible to adjust the amount of fuel supply and combustion air to adjust the amount of heat as needed, and it is equipped with a controller that detects the temperature of the room and the temperature of the heat exchanger and operates as scheduled by the user.

1 is a cross-sectional view of a warm air fan according to the present invention.

Figure 2 is a side view of the warm air fan according to the present invention

3 is a layout view of a heat exchange pipe connected to a settling chamber according to the present invention;

4 is a block diagram of a warm air fan control system according to the present invention.

<Description of Signs for Main Parts of Drawings>

1: combustion chamber 2: secondary settling chamber

3: stack 4: blowing fan

5: heat exchange pipe 6: primary settling chamber

7: fuel storage hopper 8: motor

9: fuel supply device 10: grate

11: combustion air supply fan 12: combustion material outlet

13: combustion material discharge apparatus 14: combustion material recovery box

15: temperature detection sensor 16: flame monitoring

17: vent hole 18: controller

19: wheel for movement

1 is a cross-sectional view of a warm air fan according to the present invention, FIG. 2 is a side view of the warm air fan according to the present invention, and FIG. 3 is a layout view of a heat exchange pipe connected to a settling chamber according to the present invention. 4 is an exemplary view of a control panel and FIG. 5 is a block diagram of a warm air fan control system.

In the hot air heater, a plurality of pipes 5 are installed in the horizontal direction at the upper end of the combustion chamber 1 as a device for heat exchange, and at the ends thereof, settling chambers 2 and 6 are provided for collecting dust and the like. At the top of the heated heat exchange pipe through which the gas passes, a set of blowers 4 are installed to discharge the heated heated air into the room, and a vent hole 17 is provided to blow the heated air to both sides of the lower side of the combustion chamber. In addition, a temperature sensor 15 for detecting the temperature between the heat exchanger and the outer wall is attached, and at the lower end of the combustion chamber, a flame monitor 16 for detecting the state of flame and initial ignition is provided, and a fuel storage hopper ( The lower end of the 7) is attached to the fuel supply device 9 in the form of a screw for supplying fuel to the combustion chamber (1), the lower end of the grate 10 of the combustion chamber has an air supply hole for supplying the combustion air After that The combustion air supply fan 11 is installed, and the other side of the grate is provided with a combustion material outlet 12 through which the combustion material can be discharged, and the discharged combustion material can be discharged to the combustion material recovery box 14. Combustion material discharge device 13 is attached to the controller, and the controller 18 and the wheels for controlling the air supply and fuel input amount of the fan for the combustion air supply and the automatic adjustment of the room temperature detection and the operation time of the hot air fan. 19).

Referring to the operation of the present invention configured as described above in the order as follows.

The initial ignition of the above-mentioned hot air blower opens the flame monitor 16, ignites the lightning bomb on the grate 10 of the combustion chamber 1, and then manually operates the controller 18 to make lignite in the fuel storage hopper 7. Solid fuel, such as, etc., is injected into the grate 10 of the combustion chamber 1 so that it can be ignited by the lightning bomb. Air heated by the fuel combusting with flame on the grate 10 passes through the heat exchange pipe 5 located at the lower end of the second settling chamber 2, heats the heat exchange pipe 5, and then passes through the stack 3. Will be discharged. At this time, contaminants such as dust contained in the combustion gas are settled in the first settling chamber (6), and then reheats the heat exchange pipe (5) of the upper end and is discharged to the stack through the second settling chamber (20). At this time, the blower fan 4 is operated by the sensor 15 that detects the temperature between the light exchange pipe 5 and the heat exchanger wall, and whether the air heated to the proper temperature is supplied to the room through the vent hole 17. Supplied to.

In addition, the controller for controlling the hot air fan is equipped with a sensor for detecting the temperature of the room, so that fuel can be supplied and blown until the set temperature is reached.If overheating occurs, the fuel supply is stopped and the combustion air is supplied. 24 hours program can be set to warm up to the desired temperature by time zone, and to keep only embers by minimizing fuel supply during the day when heating is not needed. The function to prevent inconvenience is set.

The present invention is to provide a heated air to an appropriate temperature in the room for heating purposes, such as a plastic house, and as a form of heat can be used to control the fuel supply and combustion air supply while using a solid fuel cheaper than liquid fuel By maintaining the optimal combustion conditions, it is possible to control the calorific value and the combustion efficiency is high, and it is possible to set the temperature for 24 hours to increase the convenience such as the liquid fuel warmer, and to maintain the embers if necessary to re-ignite. It eliminates the inconvenience and reduces the concentration of exhaust gas pollution due to incomplete combustion during the initial sequential period, and the proper inclination to the grate allows the supply of fuel and the discharge of combustion materials to be carried out at the same time to eliminate the complexity of the device.

Claims (4)

In a warm air fan using a solid fuel as a heat source, a settling chamber (2) in which a plurality of heat exchange pipes (5) are installed in a horizontal direction as a device for heat exchange at the upper end of the combustion chamber (1), and dust can be collected at the end thereof; 6), a blower (4) is installed at the upper end of the heat exchanger so that the heated air can be supplied into the room, and a vent (17) is provided for venting the heated air to both sides of the lower side of the combustion chamber, and between the heat exchanger and the outer wall. Temperature sensor (15) is attached to detect the temperature of the combustion chamber, the lower end of the combustion chamber detects the state of the flame, etc. If necessary, the flame monitor 16 for the initial ignition, and the fuel storage hopper (7) At the bottom of the), a fuel supply device 9 in the form of a scoop for supplying fuel to the combustion chamber 1 is attached, and at the bottom of the grate 10 of the combustion chamber, there is an air supply hole for supplying combustion air. At the end A small air supply fan 11 is installed, and the other side of the grate is provided with an outlet 12 through which the combustion material can be discharged, and the discharged combustion material can be discharged to the combustion material recovery box 14. The controller 18 and the moving wheel 19 which are attached to the transfer apparatus 13, which can adjust the air supply amount and fuel input amount of the fan for combustion air supply, and the automatic adjustment of the room temperature detection and the operation time of a hot air fan, etc. Heater, characterized in that attached. The front part of the secondary settling chamber (6) is capable of opening and closing to remove the dust of the heat exchange pipe (5) and the accumulated dust in the settling chamber. The fuel supply device (9) and the combustion material discharge device (12) mounted to the lower end of the hopper (7) is characterized in that the structure is operated simultaneously by the rotational force of the drive motor (8). In the controller for operating the machine of claim 1, the temperature can be set for 24 hours, the supply of fuel and the supply of combustion air are stopped when overheating, and only a minimum amount of fuel is supplied for a certain period of time when heating is not required to maintain embers. It is possible to, and to enable the arbitrary and automatic adjustment of the fuel and combustion air supply amount according to the heating conditions.