JPH0610524B2 - Artificial tornado type combustion device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a mechanism for artificially generating a tornado and an artificial tornado-type combustion device using the artificial tornado generated by the mechanism.

[Conventional technology]

Regarding the artificial tornado generating mechanism and its utilization method, the applicant of the present invention has conducted many years of research and has already applied for numerous inventions. For example, Japanese Patent Application No. 61-106384 (Japanese Patent Laid-Open No. 62-261842) discloses an artificial tornado generating mechanism and a method of using the mechanism. The gist of the present invention is to provide a number of shields between shield plates provided with suction ports. An air blowing pipe is arranged, a circulating flow (swirl airflow) is formed in an air curtain formed continuously in the free space between the air blowing pipes, and the axial center part of this circulating flow (swirl airflow) is formed. It is a mechanism to generate artificial tornado by sucking air from it.

The principle of the mechanism of the present invention is that a centrifugal force is applied to a circulating flow (swirl airflow) by an air circulation (air curtain), and a negative pressure is generated in the central portion by suctioning the central portion, so that a slender shape is formed in the suction direction. Negative pressure core part is formed,
Furthermore, the circulation flow (swirl air flow) in the range where the centripetal force and centrifugal force to the negative pressure core portion is balanced becomes a vortex flow (spiral flow), and is converged at the center of the circulation flow (swirl air flow) in the suction direction. It is a thing to artificially generate a tornado. The fluid characteristics of the artificial tornado generated by the present invention are as follows.

a, having directivity in suction (the flow velocity toward the suction port does not change even if the suction port is separated from the suction port) b, converging to the center in a tornado shape and accelerating the flow velocity, c, The negative pressure core is formed in the center of the circulation flow and extends evenly toward the suction port. D. The centrifugal force and centripetal force are balanced to form a free tornado from low speed to high speed. And, the effect of the present invention, to generate an artificial tornado in the vertical direction, which has the directivity of suction in the free space, the lateral direction and the inclined direction, the vertical direction, which has the directivity of suction in the pipe, the lateral direction And to generate an artificial tornado in the inclination direction, and to generate an artificial water tornado with directivity of suction in water, so that each fluid characteristic can be applied to be used in a wide range of applications. It is a thing.

Although not using the artificial tornado as described above, Japanese Utility Model Publication No. 50-6172 and Japanese Utility Model Publication No. 54-92682 are known as combustion devices utilizing a swirling airflow. In this combustion device, a swirling airflow is generated in the combustion chamber by making a plurality of holes in the wall surface of the combustion chamber so that air enters the combustion chamber from the tangential direction and has a rotational force, and sucking air from the upper part of the combustion chamber with a blower. Is generated, whereby exhaust gas is contacted and deodorized. The combustion device is a blower tube that forms a swirling air flow along the inner wall surface of the incinerator frame, and a blower fan that forms a diffused air flow radially toward the inner wall surface of the furnace in the center of the combustion furnace frame. With a cylinder, the swirling airflow prevents the combustion temperature from decreasing and the diffused airflow promotes combustion.

In addition, as a thermal processing device that uses combustion flames, gas burners used during glass work and furnaces used during metal processing are known, but all of these burn air excessively with a bellows or blower. It is sent to the machine to raise the combustion temperature.

[Problems to be Solved by the Invention]

However, the above-described combustion device is required to have a wall for generating the swirling airflow, and the swirling airflow generated along the wall surface causes catalytic oxidation of the exhaust gas to deodorize, that is, to enhance the combustion effect. is there. Therefore,
As the combustion device, the wall is doubled, the structure is complicated, the size becomes large, and further, the wall becomes an obstacle, and the combustion flame cannot be directly used.

In addition, the combustion device must also have a wall to generate the swirling airflow. Moreover, the swirling airflow is not directly related to the combustion, and the combustion is promoted by the diffusion air flow from the center toward the inner wall surface of the furnace. To do. Therefore, as a combustion device, a wall is required, a blower tube is required in the incinerator frame, heat resistance must be taken into consideration, the structure is complicated, the size is increased, and the combustion flame is directly used. I can't do it either.

Furthermore, the gas burners and furnaces used for glasswork and metal processing simply feed air excessively and raise the temperature, and change the direction and shape of the combustion flame to facilitate the processing of glass and metal. Not a thing.

Therefore, the present invention has been made in view of the above circumstances,
Providing an artificial tornado type combustion device that has a simple structure and does not have a furnace wall, can directly use combustion flame from the outside, can change the direction and shape of the combustion flame, and can also supply air excessively and raise the temperature The task is to do.

[Means for Solving the Problems]

The artificial tornado-type combustion device of the present invention was developed to solve the above problems, and a plurality of air blowout pipes provided with a number of air blowout holes on the side surface are parallel to each other and can be freely opened inside. Arranged to form a space, and blowing out air so that the blowing direction thereof is the same rotation direction toward other air blowing pipes to form an air curtain surrounding the free space, and the wake of the air curtain A swirling airflow is formed in the free space by the action, and further, both end surfaces of each of the air blowing pipes are shielded, an air suction pipe is provided at one of the shielding portions, and a combustor is located substantially on the central axis of the swirling airflow. Are provided respectively, and the air is blown out from each of the air blowing pipes, and the air is sucked from the air suction pipes, so that the central axis of the swirling air flow is An airflow directed toward the suction pipe is formed, an artificial tornado is generated in the free space, air is supplied to the combustion flame from the combustor by the vortex converging property of the artificial tornado, and the spiral torn is formed. An artificial flame extending from the combustor to the air suction pipe is formed in the space.

Further, the artificial tornado-type combustion device of the present invention uses an artificial flame extending from the combustor formed in the free space to the air suction pipe for processing the workpiece.

[Action]

According to the artificial tornado-type combustion device having the above configuration, when the combustor is ignited, air is blown out from the many air blowout holes of each air blowout pipe, and air is sucked from the air suction pipe, the air blows out in other directions. The air curtain is formed so as to enclose the free space between the air blowing pipes, and the free space inside the air curtain is created by the wake action of the air curtain. Since a continuous swirling airflow is formed in the longitudinal direction of each air blowing pipe and air is further sucked from the air suction pipe, the negative pressure core portion and the air suction pipe along the substantially central axis in the swirling airflow are formed. And the centrifugal force of the negative pressure core part and the centrifugal force of the air flow are combined to form the swirling air flow as a vortex flow. An artificial tornado heading toward the air suction pipe is generated along the heart, and the combustion flame from the combustor extends long in the direction of the air suction pipe along the negative pressure core part due to the artificial tornado and becomes a spiral shape. Due to the vortex convergence, the air in the free space of the air curtain is replenished over the entire length of the combustion flame and completely burned.

Moreover, according to this artificial tornado-type combustion device, since combustion flames are generated in the free space between the air blowing pipes, it can be used directly from the outside, and it goes without saying that a stove or burner is used. Due to the vortex converging property of 1, the combustion flame can be extended for a long time both in the lateral direction and in the vertical direction, and excess air can be supplied to this long combustion flame, so that the temperature becomes high and the work operation is facilitated.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an artificial tornado-type combustion apparatus according to the present invention, in which an air blowing pipe 6 having a large number of air outlets 7 is provided on a substrate 1. Four air blowing pipes 6 are arranged at each of four corners on the substrate 1 so as to form a square shape, and the upper end surfaces of the four air blowing pipes 6 are covered with the shielding plate 2 having the air suction pipes 3. It is shielded. A free space is formed by surrounding the air blowing pipe 6, the base 1 and the shield plate 2.
An artificial tornado-type combustion device is configured by installing the combustor 4 in the upper free space. According to this artificial tornado-type combustion device, when air is blown out from a large number of air outlets 7 of the air blowing pipe 6, an air curtain A is formed in the arrow direction as shown in FIG. With this air curtain A, an artificial tornado H is formed between the combustor 4 and the air suction pipe 3. Due to the generated artificial tornado H, the combustion flame 5 from the combustor 4 is generated by the air suction pipe 3 as shown in FIG.
Will be spirally raised in the direction of. In that case, the combustion flame 5 extends to the negative pressure core portion of the artificial tornado H, which will be described later, so that the combustion time becomes longer and the air is converged to the central portion over the entire length of the combustion flame 5, so that Oxygen will be replenished sufficiently and excessively. As a result, the combustion flame 5 from the combustor 4 can be completely combusted to a high temperature.

FIG. 3 shows the principle of generation of an artificial tornado in the artificial tornado-type combustion apparatus of the present invention shown in FIGS. 1 and 2.

That is, when the air is blown out so that the air curtain A in the lateral flow direction is formed, since the air curtain A has the same rotation direction, the space portion is surrounded by the air curtain A. Due to the wake action of the air curtain A, a continuous swirling airflow B (circulation flow) occurs in the space below the air suction port D, and the suction of the air suction port D further causes a negative pressure core portion in the swirling airflow B. C is formed. That is, when the swirling airflow B is formed in the air curtain A, a centrifugal force is applied to the molecules of the air by the swirling airflow B, while a negative pressure is generated in the central portion of the swirling airflow B by suction. Due to centrifugal force, the pressure region does not reach the peripheral portion and forms a negative pressure core portion C along the negative pressure region at the center of the swirling airflow B and extends on average long. This negative pressure core part C
Gives a centripetal force to the molecules of the swirling air, and the swirling airflow B becomes a vortex (spiral flow) in the range where the centrifugal force and the centripetal force are balanced, and the artificial tornado H is directed toward the air suction port D while converging in the central part. Will occur.

The fluid characteristics of the artificial tornado have a directivity for a suction (the flow velocity toward the air suction port does not change even if the air suction port is separated from the air suction port), and b is converged in a tornado shape at the center and The flow velocity is accelerated, the negative pressure core is formed in the center of the swirling airflow, and extends evenly toward the air suction port, d The centrifugal force and centripetal force are balanced, and the low to high speed range is achieved. The artificial tornado can be freely formed.

FIG. 4 and FIG. 5 respectively show a stove which is a specific embodiment of the artificial tornado-type combustion apparatus of the present invention and a burner which is a processing apparatus.

In the case of the stove shown in FIG. 4, a case where the same thing as the artificial tornado type combustion apparatus shown in FIG. 2 is used as an oil or gas stove is illustrated. For example, a combustion device with a blower 12 is installed on the combustor 4 of a fuel tank 8 containing oil. Then, the air is blown from the air outlet 7 of the air blowing pipe 6 through the blower 12 to form the air curtain A in the free space between the air blowing pipes 6, and the space between the combustor 4 and the air suction pipe 3 is formed. To form an artificial tornado H. By raising the combustion flame 5 rising from the combustor 4 through the artificial tornado H in a spiral shape, the air temperature in the free space is raised. Room heating can be obtained by this rising temperature.

In the case of the burner shown in FIG. 5, the case where the combustor 4 shown in FIG. 4 is used in the lateral direction is illustrated. By setting in this way, the workpiece can be processed from the outside by utilizing the artificial flame in the free space. For example, due to the vortex converging property of the artificial tornado H, it is possible to extend the combustion flame 5 for a long time to form an artificial flame both in the lateral direction and in the downward direction without strongly ejecting air from the nozzle as in the conventional case, and further excessive air is generated. Since it can be supplied and brought to a high temperature, a functional working process can be incorporated.

〔The invention's effect〕

INDUSTRIAL APPLICABILITY Since the present invention is configured as described above, it is possible to artificially stretch a combustion flame, which has never been considered in the past, in an open state, the combustion time becomes longer, and the air has a central portion over the entire length of the combustion flame. As a result, the oxygen supply is sufficient, complete combustion is performed, and the temperature becomes high. Therefore, there is an effect that air is not polluted and combustion efficiency is high.

Further, if this completely burned combustion flame is used for the stove and the burner, the above effect can be further enjoyed. Especially when used as a burner, since there is no furnace wall, the combustion flame that has become artificial flame and extends for a long time in the lateral direction, vertical direction or diagonal direction and has a high temperature can be freely used from the outside to heat the work piece thermally. It is extremely easy to process.

[Brief description of drawings]

1 to 3 are schematic explanatory views showing a combustion apparatus using the artificial tornado of the present invention and its principle, and FIGS. 4 and 5 show the case where the apparatus of the present invention is used as a concrete stove or burner. FIG. 1 ... Substrate, 2 ... Shielding plate 3 ... Air suction pipe 4 ... Combustor, 5 ... Combustion flame 6 ... Air blowing pipe 7 ... Air outlet 8 ... Fuel tank, 12 ... Blower A …… Air curtain B …… Swirling air flow, C …… Negative pressure core part D …… Air suction port, H …… Artificial tornado

Claims (2)

[Claims] 1. A plurality of air-blowing pipes having a large number of air-blowing holes on their side surfaces are arranged in parallel with each other to form a free space inside, and air is blown to another air-blowing pipe. Blow out so as to be the same rotation direction, to form an air curtain that surrounds the free space,
In addition, a swirling airflow is formed in the free space by the wake action of the air curtain, and further, both end faces of each of the air blowing pipes are shielded. Each of them is provided so as to be located on the central axis, and air is blown out from each of the air blowing pipes, and by sucking air from the air suction pipe, an air flow toward the air suction pipe is generated in the central axis of the swirling air flow. Formed to generate an artificial tornado in the free space, supply air to the combustion flame from the combustor due to the vortex convergence of the artificial tornado, and form a spiral from the combustor in the free space. An artificial tornado-type combustion device, characterized in that an artificial flame extending to the air suction pipe is formed. 2. An artificial tornado-type combustion apparatus, which uses an artificial flame extending from a combustor formed in a free space according to claim 1 to an air suction pipe for processing a work piece.