KR20110001607U - Fire Wood Boiler - Google Patents

Abstract

In the present invention, the firewood boiler is equipped with a refractory insulation material and a stainless steel plate at the top of the firebox for the purpose of increasing the combustion efficiency, and the inner wall of the combustion gas from the firebox is finished with the fireproof insulation material and the stainless steel plate. After passing through the secondary combustion chamber installed in the furnace, the exhaust gas passes through the heat transfer through the boiler tank to maximize the combustion efficiency to significantly reduce the generation of black smoke and soot, <b> air for the combustion of the firewood In the automatic switchgear, it is possible to finely control the degree of opening and closing, and also relates to a firewood boiler which is characterized by an automatic switchgear composed of a double opening and closing plate that can control the combustion power.

Combustion efficiency, thermal efficiency, fireproof insulation, stainless steel plate, secondary combustion chamber, automatic switchgear, automatic water supply, drip board.

Description

Fire Wood Boiler}

The present invention minimizes the generation of black smoke and soot by maximizing the combustion efficiency in the firewood boiler, and by maintaining the temperature of the exhaust gas optimally by devising the air automatic switchgear for combustion, environmental protection, fuel saving and It was researched and developed for the convenience of boiler operators.

In the prior art, the coal fired boiler forms a water tank around the fire chamber, and the boiler water is surrounded by the outside of the fire wall, so that the temperature of the flame and the combustion gas is rapidly cooled in the fire wall, so that the black flame and the soot are generated. .

In order to prevent this, fire brick or fire castable was installed on the inner wall of the firebox, but it was too heavy and required a lot of installation space, and the heat efficiency was low due to the high temperature exhaust gas.

As a result of research efforts to minimize black smoke and soot that are considered to be generated in firewood boilers, the natural ignition temperature of the tree is 400 to 470 degrees, so that the fire wall and the wall to which the flame collides can be maintained above 470 degrees. It was recognized that there was a need.

On the other hand, if the temperature of the combustion gas exiting the firebox is too high, the heat loss is increased by that much, so some heat transfer needs to be made inside the firebox.

Therefore, in the present invention, by attaching a refractory heat insulating material and a stainless steel plate 6 to a proper portion of the upper part of the fire chamber 1, the desired performance was achieved.

The refractory heat insulating material 6a used a light and thin plate (ceramic blanket also possible), and cut off the heat | fever emitted from the upper part of the fire chamber 1, and had the effect of raising the combustion atmosphere temperature.

The refractory heat insulating material was protected, and the stainless steel plate 6b was bent and mounted to be easily attached to the upper portion of the fire chamber 1. The stainless plate 6b also has the effect of further increasing the combustion efficiency by spreading the hot heat all over the fire chamber 1.

By installing the secondary combustion chamber (2) in which the inner wall is finished with the refractory insulation material and the stainless steel plate (6) to the outside of the boiler tank to maintain the temperature of the fire chamber (1) exit, unburned combustion that did not burn in the fire chamber (1) A space was provided to completely burn the gas.

In the automatic opening and closing device that controls the air for combustion, the opening and closing plate 20 can be finely adjusted and the combustion air volume can be separately controlled to control the combustion air amount. And the exhaust gas (4) temperature can be adjusted to operate the firewood boiler at the most suitable conditions.

In the present invention, by attaching a refractory heat insulating material and a stainless steel plate (6) in the upper part of the fire chamber (1) and the inside of the secondary combustion chamber (2), it was possible to maintain about 470 degrees of the natural ignition temperature of the wood, thereby significantly reducing black smoke and soot. Fireproof insulation (6a) is to block the heat transfer between the firebox (1) and the water tank (5) to maintain the firebox (1) top at a high temperature, the stainless steel plate (6b) heats the heat of the firebox (1) Diffusion throughout the ceiling has resulted in an increased combustion efficiency.

The automatic switchgear controlling the combustion air in the firewood boiler of the present invention operates by sensing the temperature of the boiler water. When the firewood burns and the temperature of the boiler water reaches the set value, the switch closes and shuts off the combustion air. The burning of the firewood is stopped and only the embers are maintained. When the temperature of the boiler water decreases by heating or using hot water, the switchgear opens automatically and burns the firewood again. In other words, since the firewood burns only when heat is needed, the fuel saving is remarkable compared to the conventional firewood boiler.

In the present invention, the opening and closing degree of the automatic opening and closing device can be finely adjusted (14) and a separate opening and closing plate (19) capable of adjusting the combustion fire power (combustion air volume control) is installed. By allowing the temperature and exhaust gas temperature (4) to be maintained in an appropriate range, it was possible to save fuel with optimal thermal efficiency and to reduce the trouble of frequent firewood input and boiler cleaning.

After many years of use of firewood boilers, the upper part of the fire chamber (1) and the lower part of the communication (4) are most vulnerable to corrosion. The ceiling of the fire chamber (1) directly touches the flames generated by the burning of the firewood, so when exposed to flames for a long time, the ceiling is more vulnerable than other parts, and the lower part of the communication pipe has a large amount of water vapor contained in the exhaust gas. In addition, rainwater (more severe in acid rain) flows in and causes corrosion.

In the firewood boiler according to the present invention, in addition to increasing the combustion efficiency by attaching a refractory heat insulating material and a stainless steel plate (6) to the upper part of the fire chamber (1) to protect the upper part of the fire chamber (1) from the flame to extend the life of the boiler significantly. Brought effect.

Separately, a drip plate 10 was installed between the lower end of the communication body and the boiler body to prevent corrosion of the boiler body from condensate (wood vinegar) and rainwater in the exhaust gas.

Separately, it is not necessary to install a supplementary water tank separately by installing an automatic water supply device (ball top) 11 in the tank of a firewood boiler of the present invention, so that cost and effort in the field can be reduced, and also have a clean appearance after construction. Could.

.

A firewood boiler with the main features of the present invention is manufactured and installed in a rural house, and used for heating the house and supplying hot water (kitchen, bath room).

In addition to the energy replacement effect on the existing oil consumption (oil boiler) by operating a coal fired boiler, it also has a much higher combustion efficiency and thermal efficiency than the existing coal fired boilers.

Boilers using oil, gas or electricity can, in principle, replace or combine with firewood boilers.

Among them, the use of energy-intensive rural facility houses, lodgings, saunas, restaurants, and laundry factories are expected to spread.

1 is a side cross-sectional view of a firewood boiler according to the present invention

2 is a front view of a firewood boiler according to the present invention

3 is a rear view of a firewood boiler according to the present invention

Figure 4 is a partial view and assembly view of the automatic opening and closing plate according to the present invention

Explanation of symbols about main parts of the drawings

Fire

2. Secondary combustion chamber

3. Year

4. Communication (exhaust gas)

5. Boiler water (bath)

6. Fireproof insulation and stainless steel plate

   6a. Fireproof insulation

   6b. Stainless plate

7. Fire Room Door

8. Second combustion chamber door

9. Cleaning

10. Drip board

11. Automatic water supply device (ball top)

12. Automatic switchgear turntable

13. axis of rotation

14. Control panel

15. Control panel fixing bolt

16. Combustion air throttle fixing bolt

17. Air vent

18. Air vent

19. Combustion air flow control panel

20. Assembly of Automatic Opening and Closing Board

Claims (3)

In order to increase the combustion efficiency in the firewood boiler composed of a firebox and a tank formed around the firebox and the year passing through the tank, a fireproof insulation and a stainless steel plate are mounted on the upper part of the firebox, and the inner wall is finished with a fireproof insulation and a stainless steel plate. A firewood boiler in which a combustion chamber is installed outside the tank of the firewood boiler. The automatic air-switching device for combustion air of a firewood boiler, which is equipped with an automatic opening / closing device composed of a double opening / closing plate which can finely adjust the opening and closing degree and the amount of combustion air. A firewood boiler equipped with an automatic water supply system (ball tower) in a boiler tank.

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