JP2011069522A - Wood stove - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To create non-large-scale secondary-combustion/tertiary-combustion systems of compact and simple mechanisms without degrading its design. <P>SOLUTION: The secondary and tertiary combustion systems are constructed by using ductile cast iron of high heat resistance, and integrating and miniaturizing components for taking the secondary air and the tertiary air, and simultaneously a wood stove body is also integrated by using the same ductile cast iron of high heat resistance, thus the number of components and assembling man-hour can be reduced, and a space for the wood stove as a whole can be saved. The wood stove of good design can be manufactured by spending costs obtained by the cost reduction, for manufacturing components of high decorative performance. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wood-burning stove having an integrated secondary combustion / tertiary combustion system and having a material and a shape for improving durability.

  Conventionally, the following patent document 1 (patent publication 2004-076700) is known as a wood stove which does not use a platinum catalyst. As a result, the uncombusted gas is burned with high efficiency by supplying sufficient air with a simple structure, thereby reducing the generation of unburned gas and reducing the manufacturing cost.

  Further, in the following Patent Document 2 (Patent Publication 2007-285660), a method is devised in which a secondary combustion cylinder is provided at the upper part of the combustion chamber and outside air is taken in and burned.

However, both methods have a larger mechanism than the conventional wood stove, and there is a possibility that the design of the wood stove as an interior is damaged.
Moreover, since the shape of the wood stove is formed by bonding the surfaces, the number of parts is increased and the number of assembly steps is also increased.

  Consumers tend to focus on the design in the room when choosing a wood-burning stove, so considering the current situation where the performance is secondary, the design of combustion methods that limit the design is imported There is a high possibility that it will be unacceptable in the wood-burning stove market, where the majority of products are used.

Patent Publication 2004-077700 Patent Publication 2007-285660

  The problem to be solved is to create a secondary combustion / tertiary combustion system with a compact and simple mechanism that does not impair the design and is not large-scale. On top of that, the integration of multiple parts that form a wood-burning stove is promoted so that the design can be made with a high degree of freedom in design, and the design can be improved by emphasizing highly decorative parts. For that purpose, it is necessary to manufacture with cast iron, but the conventional material is made of ordinary cast iron, it is not susceptible to temperature change, and cast iron parts grow and grow by repeated heating and cooling, so it is not suitable for wood stove Therefore, in order to integrate the parts and reduce the number of points, the cast iron material must be changed.

  The present invention uses a cast iron material that has high heat resistance and is less likely to be distorted by heat, so that it is possible to integrally mold parts with complex shapes, so that secondary combustion and tertiary combustion can be manufactured in a compact manner, and the main body parts are also It is possible to develop a wood-burning stove that has high designability, high durability, and high degree of design freedom by integrating and manufacturing with cast iron material with high heat resistance.

  The combustion system of a soot stove of the present invention is a soot stove capable of separately sending secondary air for secondary combustion and tertiary air for tertiary combustion into the soot stove in one part. In addition, since it is a compact part, the distance from the air intake inside the part to the combustion part is secured (Fig. 1), so it must be structured so that freshly warmed air can be sent to the combustion chamber. Therefore, it is possible to design a wood stove with a high degree of freedom in design while maintaining the function of clean exhaust and high efficiency.

薪 Since the stove body is also made of cast iron parts with high heat resistance, it is possible to integrate combustion parts that use multiple parts in the past, thus reducing assembly costs and being sufficiently profitable even if manufactured in Japan A wood-burning stove can be manufactured at a price.
In addition, by reducing the number of burning parts, it is possible to add costs to highly decorative accessories. For example, you can select and customize several types of decorative parts to create your own original wood stove. become. It is also possible to add parts that enhance functionality as well as decorativeness. For example, in FIG. 3, in addition to the radiant heat of the stove due to burning of soot, a fin-shaped part is also attached as a decoration, so that heat convection occurs due to the difference in cooling speed of the fin portion, and the room warms up quickly. Also, by creating a gap between the fin part and the main body part, the cold air at the bottom of the stove can be heated and sent to the sky, and the entire room can be warmed quickly by causing convection.

FIG. 1 is a design drawing of secondary and tertiary combustion parts. FIG. 2 is an overall view of a wood stove, and is an example in which a preferred wood stove can be made by selecting parts. (Example 1) FIG. 3 is a cross-sectional view of a wood stove, showing the flow of air.

  As shown in Fig. 1, the entire back surface of the wood stove is made into a combustion system, an air intake is provided in the lower part, and secondary air and tertiary air are taken in, and the secondary air is sent to the upper part of the combustion chamber by the divided paths. After the secondary combustion with the unburned gas, the unburned gas after the secondary combustion comes into contact with the tertiary air of the combustion system on the way to the chimney and performs the third combustion and is sent to the chimney. High efficiency and exhaust purification are realized with simple parts.

  FIG. 2 is an overall view of a wood heating stove of an embodiment using the combustion system of the present invention, and is an example in which various decorations such as fins are applied.

  FIG. 3 is a cross-sectional view of a wood-burning stove, in which 1 is a wood-burning stove body, 2 is a secondary combustion / tertiary combustion system, and 3 is a baffle plate.

  In addition, since the fin tip has a lower temperature at the tip of the fin than the base of the fin, the stove can be placed closer to the wall than a conventional wood stove. Can be installed.

  The use of cast iron material with high heat resistance and low distortion improves the durability of the wood-burning stove itself, so it is not only used in household wood-burning stoves, but is often used continuously for heating in factory workplaces and agricultural houses. It is expected to be used as an industrial heater and a reduction in the generation of carbon dioxide can be expected.

1 Wood-burning stove body 2 Secondary combustion and tertiary combustion system 3 Baffle plate 4 Door

Claims (5)

  A wood-burning stove equipped with a heat-resistant cast iron secondary and tertiary combustion system that is compact and integrated for the purpose of improving efficiency and purifying exhaust gas. A wood-burning stove that reduces the number of parts by reducing the number of parts by integrally forming the wood-burning stove main body part and multiple parts, which had previously been bonded together. A wood-burning stove that causes convection due to the difference in cooling speed by attaching fin-shaped parts on the side and back, and at the same time, using the gap between the fin parts and the stove body to cause convection and promote air circulation. A wood-burning stove that can be installed closer to the wall than before by using fin-shaped parts. Heat resistance including component elements such as carbon 3.0-4.0, silicon 2.0-5.0, nickel 0-4.0%, chromium 0-4.0%, molybdenum 0-2.0% Ductile cast iron wood stove.