KR20100106645A - Heating apparatus which uses wood pellet - Google Patents

Abstract

The present invention relates to a heater using wood pellets compressed by sawdust or wood chips as fuel, so that fuel is directly ignited by an electric heater by supplying fuel directly to an inside of a blower tube in which an electric heater is installed. At the same time, smooth air supply ensures continuous efficient combustion, and a flame sensor and a temperature sensor are installed on the upper part to control the fuel supply motor and the blower according to the degree of detection of the sensor. It is characterized by the fact that.

Description

Wood pellet heater {Heating apparatus which uses wood pellet}

The present invention relates to a heater using wood pellets compressed by sawdust or wood chips as fuel.

As is well known, there are many types of boilers depending on the type of fuel. Recently, in view of environmental problems and costs, heating devices using wood pellets have been gaining popularity.

These wood pellet heaters are made of small pieces by compressing sawdust or wood chips, and wood pellet heaters that obtain heat by burning them achieve eco-friendly combustion with high thermal efficiency, high combustion rate, and no environmental pollution, and are very convenient to install and manage. Have a vertex

However, such a conventional wood pellet heating apparatus has various problems. First, the combustion of fuel (wood pellet) is performed only on the combustion plate heated by an electric heater, so that the heating plate is heated at the first ignition. The ignition was indirectly caused by the ignition, which took a long time.

In addition, it is difficult to adjust the temperature so as to obtain a uniform temperature at all times, so that the user has to continuously observe the temperature and operate the fuel supply and blowing amount to adjust the temperature directly. There was this.

In addition, since the air supply for the combustion of fuel is blown only by the minute hole formed under the combustion plate, the fine hole is well blocked by the burned ash or foreign matter, and the blockage causes the incomplete combustion phenomenon that the air supply is always insufficient. As a result, fuel wasted and temperature control became difficult.

The present invention devised in view of the above problems is to allow the first ignition is made very quickly by the ignition directly to the fuel (wood pellet) during the first ignition, and also to ensure that the supply of air is always sufficient and smooth, It aims to improve the efficiency of combustion and temperature control by automating fuel supply and blowing according to the degree of combustion.

The present invention has been made in view of the above object, and when fuel is supplied, fuel is directly supplied to the inside of the blower tube in which the electric heater is installed, so that the fuel is directly ignited by the electric heater and continuously supplied with smooth air. Efficient combustion is achieved, and the flame sensor and the temperature sensor is installed on the upper side to control the fuel supply motor and the blower according to the degree of detection of the sensor is characterized in that the temperature is controlled efficiently.

According to the present invention, since the fuel is directly injected into the blowing ignition tube, the ignition is directly performed, and thus there is no waste of time due to ignition, and incomplete combustion and fuel waste due to ignition delay can be prevented. As a result, smooth combustion can be maintained and fuel can be efficiently used.

In addition, it is possible to automatically adjust the amount of fuel injected and blown by the blower in three stages, so it is possible to manage the uniform and efficient combustion state and temperature even if the manager does not observe and adjust the heater, thereby reducing and maintaining manpower. In addition, it is possible to save on management costs and fuels, which is a useful invention that helps to protect the environment and save energy by increasing the use of wood pellets, which are efficient fuels.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating an overall configuration of a wood pellet heater according to the present invention;

2 is a perspective view of main parts of the present invention.

The wood pellet heater of the present invention has an outer case 10 having a hot water supply box 11 installed thereon, a combustion device 30 installed in the center of the outer case 10, and the outer case 10. It is installed on the outside of the hopper 21 and the supply motor 22 and the supply guide 23 is composed of a fuel supply device 20 is configured to be connected to the upper center of the combustion device (30).

In the combustion device 30 of the present invention, a plurality of through holes 31 are formed on the outer circumference and a combustion cylinder 33 having a combustion support plate 32 on the bottom thereof, and an outer cylinder 34 on the outside thereof. An ignition confirmation sensor 40 was installed so as to penetrate the combustion cylinder 33 from the outer cylinder 34.

The combustion support plate 32 of the combustion cylinder 33 forms a small through hole 35 as a whole, and forms an ignition passage 37 having the same diameter as the ignition blower 36 in the center and then the lower center of the ignition passage 37. N-type ignition blower 36 was connected.

The heat transfer coil 41 was installed in the ignition blower 36.

An air blower 50 is installed at one side of the lower end of the outer cylinder 34, so that air is simultaneously blown from the blower 50 into the ignition blower 36 and the outer cylinder 34.

The flame sensor 42 and the temperature sensor 43 are installed on the combustion device 30 of the outer case 10 to supply the blower 50 and the fuel supply device 20 according to the detection state of these sensors. It was configured to control the motor 22, the detection temperature of the flame sensor 42 and the temperature sensor 43 is set to the 'high, medium, low' three-stage, the supply motor ( 22) the supply amount is also configured to be adjusted to the 'large, medium, small' three-stage, and the blower of the blower 50 is also configured to be adjusted to the 'large, medium, small' three-stage.

Accordingly, when the size of the flame is large or the temperature is high, the blowing amount of the blower 50 is reduced, and at the same time, the operation amount of the supply motor 22 of the fuel supply device 20 is also reduced, on the contrary, when the size of the flame is small and the temperature is low, It is to increase the supply amount by increasing the operating amount of the supply motor 22 while increasing the blowing amount.

Unexplained symbols in the drawings

Looking at the operation of the present invention having such a configuration in detail by the method of use as follows.

When the first ignition is required, power is supplied to the heat transfer coil 41 to be heated, and at the same time, the supply motor 22 of the fuel supply device 20 is operated to supply some fuel (wood pellet). Injected into the combustion cylinder 33 of the combustion device 30, and part of the combustion device 30 flows into the ignition blower 36 through the ignition passage 37.

The fuel injected into the ignition blower 36 is ignited while directly contacting the heat transfer coil. Thus, the time required for ignition is greatly shortened and incomplete combustion is minimized until ignition occurs.

After the ignition is completed by the above, when the ignition confirmation sensor 40 detects a flame, the operation of the heat transfer coil 41 is stopped and the supply motor 22 of the fuel supply device 20 is supplied with a large amount of fuel. It is injected into the combustion cylinder 33 of the combustion device 30 through the guide 23.

By this operation, normal combustion begins.

During the combustion operation, the flame sensor 42 and the temperature sensor 43 detect the degree and temperature of the flame to adjust the amount of fuel supplied and the amount of blow of the blower 50. In the case of 'low', the blowing amount of the supply motor 22 and the blower 50 of the fuel supply device 20 operates at a set value of 'large', and if the flame or temperature is set to 'medium', The supply motor 22 and the blower 50 of the supply device 20 perform fuel supply and blowing as much as the set 'middle', and if the flame or the temperature is set to 'high', the fuel supply device 20 The supply motor 22 and the blower 50 is to perform the fuel supply and blowing as much as the set 'small' will always maintain a uniform temperature.

1 is a view illustrating the overall configuration of a wood pellet heater according to the present invention

2 is a perspective view of main parts of the present invention;

*** Description of the symbols for the main parts of the drawings ***

10: outer case 11: hot water supply container

20: fuel supply device 21: hopper

22: supply motor 23: supply guide

30: combustion apparatus 31: through-hole

32: combustion support plate 33: combustion cylinder

34: external 35: through

36: ignition blower 37: ignition passage

40: ignition confirmation sensor 41: heat transfer coil

42: flame sensor 43: temperature sensor

50: blower

Claims (1)

Combustion device 30 is installed in the center of the outer case 10 and is installed on the outside of the outer case 10 is composed of a hopper 21 and the supply motor 22, the supply guide 23 is a combustion device Consists of a fuel supply device 20 connected to the upper center of the 30, Combustion device 30 has a plurality of through-holes 31 are formed on the outer circumference of the outer cylinder 34, the combustion cylinder 33 is composed of a combustion support plate 32 on the bottom, Install the ignition confirmation sensor 40 to penetrate the combustion cylinder 33 from the outer cylinder 34, The combustion support plate 32 of the combustion cylinder 33 forms a small through hole 35 as a whole, and forms an ignition passage 37 having the same diameter as the ignition blower 36 in the center, and then at the lower end of the ignition passage 37. Connect the ignition blower tube 36 of the b-type is installed inside the heat transfer coil 41, A blower 50 is installed at one lower end of the outer cylinder 34 to simultaneously blow air into the ignition blower 36 and the inner cylinder 34. The flame sensor 42 and the temperature sensor 43 are installed on the combustion device 30 of the outer case 10 to supply the blower 50 and the fuel supply device 20 according to the detection state of these sensors. It is configured to control the motor 22, the sensing temperature of the flame detection sensor 42 and the temperature sensor 43 is set to the 'high, medium, low' three-stage, and the supply motor of the fuel supply device (20) 22) and the air supply of the blower 50 is also adjusted to three stages of 'large, medium, small', respectively, If the size of the flame is large or the temperature is high, the blowing amount of the blower 50 is reduced, and at the same time, the operation amount of the supply motor 22 of the fuel supply device 20 is also reduced. On the contrary, if the flame size is small and the temperature is low, the blowing amount is reduced. Wood pellet heater, characterized in that configured to operate to increase the amount of supply by increasing the amount of operation of the supply motor 22.

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