JP2019066048A - Combustor - Google Patents

Abstract

To provide an epoch-making combustor exhibiting a novel action effect.SOLUTION: A combustor comprises: a vertically long primary combustion chamber 1 having at one end part a fuel introduction part 6 for introducing a rod-like fuel material 60, and having a predetermined length toward the other end part; and a secondary combustion chamber 2 having a length in the same direction as the primary combustion chamber 1, and provided below the primary combustion chamber 1. The primary combustion chamber 1 and the secondary combustion chamber 2 are provided so as to communicate with each other through a gas introduction passage 3 provided on the other end part side. Combustible gas occurring in the primary combustion chamber 1 is introduced into the secondary combustion chamber 2 through the gas introduction passage 3, and combustible gas introduced into the secondary combustion chamber 2 circulates to the one end part side.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a combustion apparatus.

  Conventionally, a combustion apparatus (hereinafter referred to as "conventional apparatus") having a primary combustion chamber 41 and a secondary combustion chamber 42 as a combustion apparatus (boiler) for burning steam or heated water by burning a rod-shaped fuel material 60 such as firewood or wood waste An example has been proposed.

  In this conventional example, as shown in FIG. 7, a fuel introduction portion 46 for introducing the rod-like fuel material 60 is provided at one end, and a vertically elongated primary combustion chamber 41 having a predetermined length toward the other end The secondary combustion chamber 42 has a length in the same direction as the primary combustion chamber 41 and is provided below the primary combustion chamber 41, and the primary combustion chamber 41 and the secondary combustion chamber 42 The flammable gas generated in the primary combustion chamber 41 is introduced into the secondary combustion chamber 42 through the gas introduction passage 43. The flammable gas is provided in communication with the other end side through the gas introduction passage 43 provided in the other end side. Further, the flammable gas introduced into the secondary combustion chamber 42 is configured to flow to one end side.

  In addition, the secondary combustion chamber 42 includes a first circulation portion 44 for circulating the flammable gas introduced through the gas introduction passage 43 to one end of the secondary combustion chamber 42, and the first circulation portion 44. And a second circulation unit 49 parallelly disposed below via the partition unit 47 and circulating the combustible gas to the other end side of the secondary combustion chamber 42, and the second circulation unit 29 and the second circulation unit 49 The one circulation portion 44 is provided in communication with the one end portion of the first circulation portion 44 by the return path 48. A water passage 50 having an introduction portion 50a and a lead-out portion 50b is provided around the primary combustion chamber 41 and the secondary combustion chamber 42, and water W passes through the water passage 50 for heat exchange. Heating water is produced.

  Therefore, in the conventional example, since the combustible gas generated when the rod-shaped fuel material 60 is burned in the primary combustion chamber 41 is further burned in the secondary combustion chamber 42, high temperature can be generated, and smoke (harmful Generation of substances can be suppressed.

  In the conventional example, as shown in FIGS. 7 and 8, the gas introduction passage 43 has a length in the vertical direction orthogonal to the length direction of the primary combustion chamber 41 and the secondary combustion chamber 42, and the primary The opening of the bottom of the combustion chamber 41 and the opening of the ceiling of the secondary combustion chamber 42 has a rectangular shape in plan view in which the longitudinal direction is the long side, and the space between both openings is a rectangular parallelepiped.

  Therefore, when the rod-shaped fuel material 60 is disposed in the primary combustion chamber 41, the rod-shaped fuel material 60 is disposed in the same direction as the length direction of the primary combustion chamber 41. When the rod-shaped fuel material 60 is burned in the combustion chamber 41, as shown in FIG. 9, the rod fuel material 60 rapidly burns and is divided in the vicinity of the gas introduction passage 43 which becomes high temperature and falls into the gas introduction passage 43 In the inserted state, the gas introduction path 43 may be blocked to cause a combustion failure.

  The present invention provides a revolutionary combustion device which exhibits an unprecedented effect and effect which solves the above-mentioned problems.

  The subject matter of the present invention will be described with reference to the accompanying drawings.

  A longitudinally elongated primary combustion chamber 1 having a fuel introduction portion 6 for introducing a rod-shaped fuel material 60 at one end and having a predetermined length toward the other end, and a length in the same direction as the primary combustion chamber 1 And a secondary combustion chamber 2 provided below the primary combustion chamber 1, and the primary combustion chamber 1 and the secondary combustion chamber 2 are provided with a gas introduction passage 3 provided on the other end side. The combustible gas generated in the primary combustion chamber 1 is introduced into the secondary combustion chamber 2 through the gas introduction passage 3 and is further introduced into the secondary combustion chamber 2. The combustible gas is circulated to one end side, and the gas introduction passage 3 is opened at the bottom of the primary combustion chamber 1 and the ceiling of the secondary combustion chamber 2 respectively. The opening 1a of the primary combustion chamber 1 is an elongated hole whose short side is the length direction of the primary combustion chamber. Those of the device.

  In the combustion apparatus according to claim 1, the opening 1a of the primary combustion chamber 1 is rectangular in a plan view or elliptical in a plan view.

  The combustion apparatus according to claim 1, wherein the opening 2a of the secondary combustion chamber 2 is an elongated hole whose short side is the length direction of the secondary combustion chamber 2. It is a thing.

  In the combustion apparatus according to claim 3, the opening 2a of the secondary combustion chamber 2 is rectangular in a plan view or elliptical in a plan view.

  In the combustion apparatus according to any one of claims 1 to 4, the gas introduction passage 3 has a length in the vertical direction orthogonal to the length direction of the primary combustion chamber 1 and the secondary combustion chamber 2. It relates to a combustion apparatus characterized by having.

  Further, in the combustion apparatus according to any one of claims 1 to 5, the secondary combustion chamber 2 is a one end portion of the secondary combustion chamber 2 with the combustible gas introduced through the gas introduction passage 3. A first circulation unit 4 for circulation to the side, and the second circulation unit 4 and the partition unit 7 disposed below the second circulation unit 4 for circulating the flammable gas to the other end of the secondary combustion chamber 2 The second circulation unit 9 and the first circulation unit 4 are provided in communication with each other at one end of the first circulation unit 4 by the return passage 8. It relates to the device.

  The combustion apparatus according to any one of claims 1 to 6, wherein the rod-shaped fuel material 60 is wood.

  Since the present invention is configured as described above, there is no combustion failure caused by the rod-like fuel material as in the above-described conventional example, and a revolutionary combustion device that exerts an effect and effect that is not provided conventionally. Become.

It is a perspective view which shows a present Example. It is an explanation sectional view of this example. It is an explanatory sectional view of an important section of this example. It is explanatory drawing of the principal part of a present Example. It is use condition explanatory drawing of a present Example. It is explanatory drawing of the principal part of a present Example. It is explanatory sectional drawing of a prior art example. It is explanatory drawing of the principal part of a prior art example. It is explanatory drawing of the principal part of a prior art example.

  The preferred embodiments of the present invention will be briefly described by showing the operation of the present invention based on the drawings.

  When the rod-like fuel material 60 is introduced into the primary combustion chamber 1 from the fuel introduction part 6 and burned, combustible gas is generated.

  The combustible gas generated in the primary combustion chamber 1 is introduced into the secondary combustion chamber 2 through the gas introduction passage 3 and the combustible gas is burned while flowing through the secondary combustion chamber 2 to one end side. .

  The gas introduction passage 3 according to the present invention opens at the bottom of the primary combustion chamber 1 and at the ceiling of the secondary combustion chamber 2, and the opening 1 a of the primary combustion chamber 1 extends in the length direction of the primary combustion chamber 1. Unlike the conventional example described above, since the distance between the primary combustion chamber 1 and the secondary combustion chamber 2 in the gas introduction passage 3 in the longitudinal direction is short, the rod-like fuel that is burned and divided is different from the above. The material 60 is prevented as much as possible from falling and being inserted, and therefore no combustion failure due to blocking of the gas channel 3 occurs.

  Specific embodiments of the present invention will be described based on the drawings.

  In this embodiment, a fuel introduction portion 6 for introducing the rod-like fuel material 60 at one end, and a longitudinally elongated primary combustion chamber 1 having a predetermined length toward the other end, and the primary combustion chamber 1 The secondary combustion chamber 2 has a length in the same direction and is provided below the primary combustion chamber 1. The primary combustion chamber 1 and the secondary combustion chamber 2 are provided on the other end side. The combustible gas generated in the primary combustion chamber 1 is introduced into the secondary combustion chamber 2 via the gas introduction passage 3 and is further provided in the secondary combustion chamber 2 via the gas introduction passage 3. The combustible gas introduced into the combustion chamber 2 is a combustion apparatus configured to flow to one end side.

  Specifically, as illustrated in FIGS. 2 and 3, metal cylindrical bodies 1 ′ and 2 ′ (cylindrical shapes having the same length and different diameters) are provided in an appropriate metal rectangular parallelepiped apparatus main body 5. Body is horizontally arranged in two upper and lower stages, the inner space of upper diameter cylindrical body 1 'is configured as primary combustion chamber 1, and the inner space of lower diameter cylindrical body 2' is secondary combustion It is configured as a room 2.

  One end of the primary combustion chamber 1 is open to one end of the apparatus main body 5, and the one end opening is configured as a fuel introducing portion 6 for introducing a rod-like fuel material.

  The fuel introduction portion 6 is provided so as to be openable and closable by an open / close door 10 provided at one end of the apparatus main body 5.

  Therefore, the open / close door 10 can be opened to introduce the rod-shaped fuel material 60 from the fuel introduction portion 6 or move the rod-shaped fuel material 60 disposed in the primary combustion chamber 1.

  Further, at the other end of the primary combustion chamber 1, a water vapor supply unit 11 for injecting water vapor into the primary combustion chamber 1 is provided.

  Therefore, the temperature in the primary combustion chamber 1 becomes higher due to the superheated steam, and the combustion is performed well.

  Further, a heat insulating material 15 is provided on the inner wall surface of the primary combustion chamber 1.

  Further, the primary combustion chamber 1 is provided with an opening 1a at the curved bottom at the other end side, and this opening 1a has a rectangular parallelepiped shape with the opening 2a provided at the ceiling of the secondary combustion chamber 2 described later. The gas introduction passage 3 is communicated with the space through the space, and the gas introduction passage 3 has a length in the vertical direction orthogonal to the length direction of the primary combustion chamber 1 and the secondary combustion chamber 2.

  Further, the opening 1a of the primary combustion chamber 1 is a long hole whose short side is the length direction of the primary combustion chamber, and has a rectangular shape in plan view (see FIG. 6). The opening 1a of the primary combustion chamber 1 may have an elliptical shape in plan view.

  Further, a heat insulating material 16 is provided in the gas introduction path 3.

  One end of the secondary combustion chamber 2 is open to one end of the apparatus main body 5, and this one end opening is configured as a maintenance opening 12 for recovering ash, embers and the like in the secondary combustion chamber ing.

  The maintenance opening 12 is provided so as to be openable and closable by an open / close door 13 provided at one end of the apparatus main body 5.

  Therefore, the open / close door 13 can be opened to recover the ashes, embers and the like disposed in the secondary combustion chamber 2 from the maintenance opening 12.

  Further, at the other end of the secondary combustion chamber 2, a water vapor supply unit 14 for injecting water vapor into the secondary combustion chamber 2 is provided.

  Therefore, the temperature in the secondary combustion chamber 2 becomes higher due to the superheated steam, and the combustion is performed well.

  Further, a heat insulating material 17 is provided on the inner wall surface of the secondary combustion chamber 2.

  Further, the secondary combustion chamber 2 is provided with an opening 2a in a curved ceiling on the other end side, and this opening 2a is a rectangular parallelepiped space with the opening 1a provided in the above-mentioned primary combustion chamber 1 The gas introduction passage 3 is configured to be in communication with each other.

  Further, the secondary combustion chamber 2 divides the combustible gas introduced through the gas introduction passage 3 into the first circulation unit 4 that distributes the combustible gas to one end of the secondary combustion chamber 2 and the first circulation unit 4 The second circulation unit 9 includes a second circulation unit 9 arranged in parallel below via the unit 7 and circulating the combustible gas to the other end of the secondary combustion chamber 2. The second circulation unit 9 and the first circulation unit 4 Is provided in communication with the return passage 8 at one end of the first circulation portion 4.

  Therefore, the combustible gas introduced through the gas introduction passage 3 is burned while flowing through the first circulation portion 4, the return passage 8 and the second circulation portion 9 by the suction action in the exhaust passage described later (secondary Burn).

  Further, an exhaust passage is provided at the other end of the secondary combustion chamber 2 (the second circulation portion 9).

  The exhaust passage is provided in communication with the box-shaped first space portion 18 provided in communication with the downstream end of the second circulation portion 9 and in the upper part of the first space 18 and is internally provided with a backflow preventive A cylindrical space portion 19 provided with a 19 a and a box-shaped third space portion 20 provided in communication with the upper portion of the second space portion 19 are formed.

  In the third space portion 20, a blower fan 21 and a chimney portion 22 are provided.

  The air in the third space 20 is discharged from the chimney 22 by the blower fan 21 so that the third space 20 has a negative pressure, and the air in the apparatus main body 5 is drawn into the third space 20, and the primary combustion chamber 1, a flow of air flowing through the gas introduction passage 3, the secondary combustion chamber 2, and the exhaust passage is generated.

  In the present embodiment, a water passage 23 having an introduction portion 23a and a lead-out portion 23b is provided around the primary combustion chamber 1 and the secondary combustion chamber 2, and water W passes through the water passage 23. Heat exchange is performed to produce heated water.

  Reference numeral 24 denotes a control unit that controls the blower fan 21 and the water vapor supply units 11 and 14.

  Since the present embodiment is configured as described above, combustible gas is generated when the rod-like fuel material 60 (soot as wood having a predetermined length) is introduced from the fuel introducing unit 6 to the primary combustion chamber 1 and burned.

  The combustible gas generated in the primary combustion chamber 1 is introduced into the secondary combustion chamber 2 through the gas introduction passage 3, and the combustible gas is supplied to the first circulation portion 4 of the secondary combustion chamber 2, the return passage 8 and It burns while flowing through the second distribution unit 9.

  By the way, as shown in FIG. 6, the gas introduction passage 3 according to the present embodiment is respectively opened at the bottom of the primary combustion chamber 1 and the ceiling of the secondary combustion chamber 2 and the opening 1a of the primary combustion chamber 1 is Since the primary combustion chamber is an elongated hole whose length direction is the short side, the primary combustion chamber 1 and the secondary combustion chamber in the gas introduction passage 3 are different from the conventional example (the gas introduction passage 43 shown in FIG. 8) described above. Since the distance in the length direction of 2 is short, it is prevented as much as possible that the rod-shaped fuel material 60 which has been burned and divided falls and is inserted, and hence the combustion failure due to the gas channel 3 being blocked It does not occur.

  Further, in the present embodiment, since the opening 2a of the secondary combustion chamber 2 is a long hole whose short side is the length direction of the secondary combustion chamber 2, the secondary combustion chamber can be compared to the above-described conventional example. The circulation distance L of the flammable gas in 2 (the first circulation unit 4) can be set long, and the secondary combustion time is accordingly long, and the combustion is favorably performed to generate the smoke (toxic substance) as much as possible. It can be suppressed.

  Further, in the present embodiment, since the opening 1a of the primary combustion chamber 1 and the opening 2a of the secondary combustion chamber 2 have a square shape in plan view or an elliptical shape in plan view, the above-described effects can be achieved simply and reliably. Can.

  Further, in the present embodiment, since the gas introduction passage 3 has a length in the vertical direction orthogonal to the length direction of the primary combustion chamber 1 and the secondary combustion chamber 2, the above-described effects can be simplified and ensured. Can be played.

  Further, in the present embodiment, the secondary combustion chamber 2 includes a first circulation unit 4 for circulating the combustible gas introduced through the gas introduction passage 3 to one end of the secondary combustion chamber 2, and the first circulation unit 4. The second circulation unit 9 includes a second circulation unit 9 arranged in parallel below the circulation unit 4 and the partition unit 7 and circulating a combustible gas to the other end of the secondary combustion chamber 2. Since the first circulation portion 4 is provided in communication with the return passage 8 at one end of the first circulation portion 4, the combustible gas can be burned well, and even a wood with a high water content can be well burned. It can be done.

  The present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

1 Primary combustion chamber 1a Opening 2 Secondary combustion chamber 2a Opening 3 Gas introduction passage 4 First circulation unit 6 Fuel introduction unit 7 Partition unit 8 Turnback passage 9 Second circulation unit
60 rod fuel material

Claims (7)

  A longitudinally extending primary combustion chamber having a fuel introducing portion for introducing a rod-like fuel material at one end and having a predetermined length toward the other end, and a length in the same direction as the primary combustion chamber, And a secondary combustion chamber provided below the primary combustion chamber, wherein the primary combustion chamber and the secondary combustion chamber are provided in communication with each other via a gas introduction passage provided on the other end side, The combustible gas generated in the primary combustion chamber is introduced into the secondary combustion chamber 2 via the gas introduction passage, and the combustible gas introduced into the secondary combustion chamber flows to one end side In the combustion apparatus configured as described above, the gas introduction path is respectively opened to the bottom of the primary combustion chamber and the ceiling of the secondary combustion chamber, and the opening of the primary combustion chamber is the primary combustion chamber. A combustion apparatus characterized in that it is an elongated hole having a short side in the length direction.   The combustion apparatus according to claim 1, wherein the opening of the primary combustion chamber is rectangular in plan view or elliptical in plan view.   The combustion apparatus according to claim 1, wherein the opening of the secondary combustion chamber is a long hole whose short side has a length direction of the secondary combustion chamber.   The combustion apparatus according to claim 3, wherein the opening of the secondary combustion chamber has a square shape in plan view or an elliptical shape in plan view.   The combustion apparatus according to any one of claims 1 to 4, wherein the gas introduction passage has a length in the vertical direction orthogonal to the length direction of the primary combustion chamber and the secondary combustion chamber. A combustion device characterized by   The combustion apparatus according to any one of claims 1 to 5, wherein the secondary combustion chamber causes combustible gas introduced through the gas introduction passage to flow to one end of the secondary combustion chamber. The first circulation unit and a second circulation unit arranged in parallel below the first circulation unit via the partition unit and circulating the combustible gas to the other end side of the secondary combustion chamber 2. The combustion apparatus according to claim 1, wherein the second flow portion and the first flow portion are provided in communication with each other at one end of the first flow portion by a return path.   The combustion apparatus according to any one of claims 1 to 6, wherein the rod-like fuel material is wood.

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