Mobile pet crematorium

Abstract

To provide a portable pet crematorium that is small and lightweight while having a primary combustion chamber and a secondary combustion chamber. [Solution] The furnace body is equipped with a primary combustion chamber for burning pets housed inside, a secondary combustion chamber into which the primary combustion gases generated by the burning of the pets are introduced through a flue for secondary combustion and discharged to the outside through an exhaust port (chimney), and a buffer chamber interposed between the primary combustion chamber and the secondary combustion chamber, a first air supply duct for supplying air flowing toward the outside into the exhaust port, and a second air supply duct that branches off midway from the first air supply duct and supplies air to the buffer chamber.

Description

[Technical Field]

[0001] The present invention relates to a mobile pet crematorium that can be moved to, for example, the owner's home and used to cremate pets there. [Background technology]

[0002] This type of mobile pet crematorium (hereinafter simply referred to as "crematorium") is designed to be mounted integrally on a vehicle, and therefore is required to be small and lightweight, and, taking into consideration cremation in residential areas, to emit as little heat as possible, as well as as little smoke and harmful substances as possible.

[0003] For this reason, for example, in the crematorium described in Patent Document 1, a secondary combustion chamber is provided above the primary combustion chamber in which the pet is placed, aiming for complete combustion and smokelessness.

[0004] When a primary combustion chamber and a secondary combustion chamber are provided in this manner, it is necessary to suppress the mutual thermal influence between the primary combustion chamber and the secondary combustion chamber to a certain extent so that the temperature inside the furnace does not rise too much.

[0005] Therefore, the crematorium in Patent Document 1 separates the primary combustion chamber from the secondary combustion chamber by providing a space between them. However, this structure makes it difficult to make the crematorium compact.

[0006] Also, although it is not a mobile type, Patent Document 2 also describes a pet crematorium that has a secondary combustion chamber in addition to a primary combustion chamber. Here, the primary combustion chamber and the secondary combustion chamber are thermally isolated by an insulating wall. However, such an insulating wall tends to be heavy, making it difficult to reduce the weight. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Registered Utility Model Publication No. 3228408 [Patent Document 2] Registered Utility Model Publication No. 3229455 Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention was made to solve all of the above problems at once, and its main objective is to provide a portable pet crematorium that is small and lightweight while still having a primary combustion chamber and a secondary combustion chamber. [Means for solving the problem]

[0009] That is, the mobile pet crematorium according to the present invention is mounted on a vehicle and is as follows.

[0010] [1] A furnace body includes a primary combustion chamber for burning pets housed inside, a secondary combustion chamber for introducing primary combustion gases generated by the burning of pets through a flue for secondary combustion and discharging them to the outside through an exhaust port (chimney), and a buffer chamber interposed between the primary combustion chamber and the secondary combustion chamber; a first air supply duct that supplies air flowing toward the outside into the exhaust port; a second air supply duct branching from the first air supply duct to supply air to the buffer chamber; A mobile pet crematorium characterized by the following:

[0011] [2] A first air inlet to which the second air supply duct is connected is provided on one side of the buffer chamber, and the flue is located on the other side. The air introduced into the buffer chamber from the air inlet flows from one side to the other within the buffer chamber and is introduced into the secondary combustion chamber from the flue. [1] The mobile pet crematorium described in.

[0012] With this configuration, air is circulated within the buffer chamber, improving the heat blocking capability, and the air that passes through the buffer chamber can be effectively utilized for secondary combustion without being wasted.

[0013] [3] The buffer chamber is provided with a labyrinth flow path formed by a labyrinth wall, and the air introduced into the buffer chamber from the first air inlet passes through the labyrinth flow path and reaches the flue. [2] A mobile pet crematorium.

[0014] With this, air can pass through the buffer chamber evenly, and the heat insulating performance of the buffer chamber can be further improved.

[0015] [4] A mobile pet crematorium described in any one of [1] to [3], further comprising a third air supply duct that directs a portion of the air introduced into the buffer chamber to the upstream side of the secondary combustion chamber opposite the exhaust port.

[0016] With this arrangement, the air introduced from the upstream side of the secondary combustion chamber through the third ventilating duct increases the pressure inside the secondary combustion chamber, reducing the flow rate of primary combustion gases sucked into the secondary combustion chamber from the primary combustion chamber. Therefore, by adjusting the amount of air passing through this third ventilating duct, even if the combustion becomes too intense and the internal temperature of the furnace body rises too much, the combustion can be moderately suppressed and the internal temperature of the furnace body can be maintained at an appropriate level.

[0017] [5] The first air supply duct is configured so that a certain portion from the base end where air is supplied passes outside the furnace body, and the remaining portion passes through the secondary combustion chamber, and the tip port from which air is discharged is positioned so as to face the exhaust port. A mobile pet crematorium described in any of [1] to [4].

[0018] With this, the length of the portion of the first air duct that passes through the secondary combustion chamber can be made as short as possible, so that the temperature rise of the air passing through the first air duct can be suppressed.

[0019] [6] The second air duct branches off from the part of the first air duct that passes outside the furnace body and is connected to a buffer chamber. [5] A mobile pet crematorium.

[0020] In this case, the second air supply duct is positioned outside the furnace body, so the temperature rise of the air passing through it can be suppressed, and air close to room temperature can be introduced into the buffer chamber, improving the heat-blocking performance of the buffer chamber.

[0021] [7] The primary combustion chamber is provided with a burner mounting member to which a burner is attached, and the burner mounting member is provided with stabilizing wings that extend toward the inside of the primary combustion chamber. [1] to [6] A portable pet crematorium.

[0022] Such a device can suppress the raging of the flames blown onto the pet, making it possible to burn the pet evenly. [Effects of the Invention]

[0023] According to the present invention configured as described above, complete combustion is possible by providing a secondary combustion chamber, and smokeless gases are discharged to the outside.

[0024] In addition, the buffer chamber suppresses the mutual thermal influence between the primary combustion chamber and the secondary combustion chamber, allowing the combustion temperature inside the furnace to be appropriately controlled, not only maintaining optimal combustion of pet food but also preventing thermal damage to the furnace body and reducing radiant heat to the outside.

[0025] The above are the basic effects, but in addition, since outside air is sent into this buffer chamber, the necessary insulation can be obtained without increasing the capacity of the buffer chamber, making it possible to make it compact and lightweight.

[0026] Furthermore, since the air sent into the buffer chamber is part of the air used to promote secondary combustion, there is no need for a dedicated fan to send air into the buffer chamber separately, which prevents the structure from becoming too complicated and further promotes the aforementioned compactness and weight reduction. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 1 is a left side view showing a crematorium according to an embodiment of the present invention. [Figure 2] FIG. 2 is a front view showing the crematorium in the same embodiment. [Figure 3] FIG. 2 is a rear view showing the crematorium in the same embodiment. [Figure 4] FIG. 2 is a right side view showing the crematorium according to the embodiment. [Figure 5] FIG. 1 is a perspective view showing the crematorium in the same embodiment (however, the blower and burner are omitted). [Figure 6] FIG. 2 is a perspective view showing the internal structure of a secondary combustion chamber in the embodiment. [Figure 7] FIG. 2 is a perspective view showing the internal structure of a buffer chamber in the embodiment. [Figure 8] FIG. 2 is a plan view showing the internal structure of a secondary combustion chamber and the flow of gas in the embodiment; [Figure 9] FIG. 2 is a plan view showing the internal structure of a buffer chamber and the flow of gas in the embodiment; [Figure 10] 3 is a diagram showing a stabilizing wing in the embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0028] A mobile pet crematorium 100 (hereinafter simply referred to as "crematorium 100") according to one embodiment of the present invention will be described below with reference to the drawings.

[0029] 1. Configuration (1) Overview This crematorium 100 is installed in a vehicle and burns and cremates pets P. As shown in Figures 1 to 5, it is configured with a furnace body 1 in which pets P are housed, a burner 2 for burning pets P within the furnace body 1, and a blower mechanism 3 for sending outside air into the furnace body 1 for various purposes, such as controlling combustion.

[0030] Each part is explained below.

[0031] (2) Furnace body 1 The furnace body 1 is generally rectangular parallelepiped and is surrounded by a front wall 11, a back wall 12, left and right side walls 13, 14, a ceiling wall 15, and a bottom wall 16.

[0032] Two horizontal partition walls 17 and 18 are provided in the internal space, with a primary combustion chamber 1a below the lower partition wall 18, a secondary combustion chamber 1b above the upper partition wall 17, and a buffer chamber 1c between the upper and lower partition walls 17 and 18.

[0033] (2-1) Primary combustion chamber 1a The primary combustion chamber 1a is a space where pets P are housed and burned. The pets P are placed on a thermally insulating movable platform 19 provided within the primary combustion chamber 1a. The movable platform 19 is configured so that it can be pulled out of the primary combustion chamber 1a by opening a door 110 provided on the front wall 11.

[0034] (2-2) Secondary combustion chamber 1b As shown in Figures 6 and 9, the secondary combustion chamber 1b is a space where the primary combustion gas generated by the combustion of pet food P in the primary combustion chamber 1a is drawn in and subjected to secondary combustion. This secondary combustion results in almost complete combustion of the primary combustion gas.

[0035] This primary combustion gas is guided to the secondary combustion chamber 1b through a flue 1d that penetrates vertically at the back side of the buffer chamber 1c. The secondary combustion gas generated by the secondary combustion of the primary combustion gas is discharged to the outside from an exhaust port (hereinafter referred to as chimney 4) provided downstream of the secondary combustion chamber 1b, i.e., on the front side of the ceiling wall 15.

[0036] (2-3) Buffer chamber 1c As shown in FIGS. 7 and 8, the buffer chamber 1c is a space interposed between the primary combustion chamber 1a and the secondary combustion chamber 1b to block heat conduction therebetween as much as possible.

[0037] (3) Burner 2 The burner 2 is attached to a burner mounting member 6 provided on the back wall 12 of the furnace body 1. This burner mounting member 6 is cylindrical and slopes downward as it goes inward, penetrating the back wall 12 and fixed so that its tip protrudes into the primary combustion chamber 1a.

[0038] In this embodiment, as shown in Figures 1, 4, and 10, a stabilizing blade 61 is attached to the tip of the burner mounting member 6 that protrudes into the furnace body 1, to stabilize the flame blown out from the burner 2 so that it does not fluctuate greatly left and right and up and down. This stabilizing blade 61 has an irregular flange shape that spreads outward from the tip of the burner mounting member 6, and as shown in Figure 10(b), when viewed from the front, it has a potbellied shape that is larger at the bottom and narrower at the top. In addition, it is curved so that it protrudes forward as it approaches the outer edge.

[0039] The flame emitted from the burner 2 is stabilized by passing through the stabilizing vanes 61 and is then blown obliquely from above onto the pet P placed in the primary combustion chamber 1a.

[0040] (4) Blower mechanism 3 The air blowing mechanism 3 includes an air blower 34, and a first air blowing duct 31, a second air blowing duct 32, and a third air blowing duct 33 that introduce the air blown out from the air blower 34 into the furnace body 1.

[0041] (4-1) Blower 34 The blower 34 is, for example, an axial flow type attached to the rear wall 12 of the furnace body 1, but the installation location and type are not limited to this.

[0042] (4-2) 1st ventilation duct 31 The first air supply duct 31 is formed, for example, from a metal pipe, and its base end opening is connected to the discharge outlet of the blower 34, and its tip opening 31a is arranged so as to face the entrance (bottom surface) of the chimney 4 in the secondary combustion chamber 1b.

[0043] More specifically, a certain portion of the base end opening of the first air duct 31 extends from the blower 34 attached to the rear wall 12 along the outer surface of the side wall 13 toward the front side, and the remaining portion extends through a perforation set near the front of the side wall 13 into the secondary combustion chamber 1b, with its tip opening 31a facing upward and facing the bottom surface of the chimney 4.

[0044] As shown in Figure 9, the suction effect of air being sent from this first air supply duct 31 toward the chimney 4 creates negative pressure inside the secondary combustion chamber 1b, causing the high-temperature air inside the primary combustion chamber 1a to enter the secondary combustion chamber 1b together with the primary combustion gas, promoting complete combustion of the primary combustion gas.

[0045] (4-3)Second ventilation duct 32 The second air duct 32 branches off from the first air duct 31 midway and is connected to the buffer chamber 1c, and here is arranged outside the furnace body 1. More specifically, the base end of this second air duct 32 is connected to a portion of the first air duct 31 that is outside the furnace body 1, and the tip end is connected to a first air inlet 1e provided near the front of the side wall 13 that forms the buffer chamber 1c.

[0046] This buffer chamber 1c is provided with a labyrinth flow path 5 formed by a labyrinth wall 51, and as shown in Figure 8, air that enters the buffer chamber 1c from the first air inlet 1e travels back and forth between the opposing side walls 13, 14 within the buffer chamber 1c, proceeds to the rear side, and is introduced into the secondary combustion chamber 1b through the flue 1d.

[0047] (4-4) Third ventilation duct 33 In the buffer chamber 1c, an air outlet 1f is provided in the side wall 14 at a position facing the first air inlet 1e.

[0048] The third air supply duct 33 has its base end connected to the air outlet 1f and its terminal end connected to a second air inlet 1g provided in the rear wall 12 of the secondary combustion chamber 1b, and is arranged outside the furnace body 1. Here, four second air inlets 1g are provided so as to be located above the flue 1d.

[0049] 8 and 9, this configuration allows a portion of the air passing through the buffer chamber 1c to be diverted midway and guided to the upstream side of the secondary combustion chamber 1b (the side opposite the chimney 4). Note that the third air supply duct 33 is provided with a flow control valve 331, which is configured to adjust the flow rate of air passing through the third air supply duct 33.

[0050] 2. Operation and effects Next, the operation and effects of the crematorium 100 will be described. When cremating a pet P, the door 110 is opened, the movable platform 19 is pulled out, the pet P is placed on the platform, and then the movable platform 19 is returned to the primary combustion chamber 1a and the door 110 is closed.

[0051] Next, the blower 34 is operated and the burner 2 is ignited.

[0052] When burner 2 is ignited, pet P ignites, combustion begins, and primary combustion gas is generated.

[0053] 9, the air sent out from the blower 34 passes through the first air supply duct 31 and is discharged from its tip end 31a, generating an air flow directed outward within the chimney 4. This air entrainment action creates a negative pressure in the secondary combustion chamber 1b.

[0054] As a result, the primary combustion gas generated in the primary combustion chamber 1a is sucked into the secondary combustion chamber 1b, and external air enters the primary combustion chamber 1a, thereby maintaining the combustion of the pet P.

[0055] In the secondary combustion chamber 1b, the primary combustion gas drawn into it is subjected to secondary combustion with the high-temperature air heated in the primary combustion chamber 1a, and is then discharged from the chimney 4. The secondary combustion gas discharged from the chimney 4 is the primary combustion gas that has been almost completely burned, and contains almost no smoke or harmful substances.

[0056] On the other hand, part of the air for generating negative pressure that is supplied from the blower 34 through the first air duct 31 to the chimney 4 is introduced into the buffer chamber 1c through the second air duct 32 that branches off from the first air duct 31, while still at a temperature close to room temperature before being supplied to the chimney 4, as shown in Figure 8. After circulating through the interior from the front side to the back side, the air is introduced into the secondary combustion chamber 1b through the flue 1d.

[0057] In this way, ambient air is constantly being sent into and circulating in the buffer chamber 1c, thereby blocking heat conduction between the primary combustion chamber 1a and the secondary combustion chamber 1b as much as possible and suppressing unexpected temperature fluctuations caused by heat conduction between the primary combustion chamber 1a and the secondary combustion chamber 1b. This means that it is possible to prevent the temperature inside the furnace body 1 from rising due to strong combustion, which could damage the furnace body 1 or cause unexpected heat radiation to the surrounding area, and it is also possible to prevent the temperature inside the furnace body 1 from dropping due to weak combustion, which could cause the pet P to take a long time to cremate or cause incomplete combustion gases to be discharged to the outside.

[0058] Furthermore, because heat conduction is suppressed by the flowing room-temperature air, there is no need to provide a large separation between the primary combustion chamber 1a and the secondary combustion chamber 1b. This allows for a compact size, and the buffer chamber 1c can be constructed using thin upper and lower partition walls 17, 18, which also contributes to weight reduction.

[0059] In other words, the crematorium furnace 100 of this embodiment is compact and lightweight, yet suppresses unexpected heat conduction between the primary combustion chamber 1a and the secondary combustion chamber 1b, and can easily control the temperature inside the furnace body 1 to an appropriate level.

[0060] Furthermore, as shown in Figure 9, part of the air sent into the buffer chamber 1c from the second duct 32 passes through the third duct 33 installed outside the furnace body 1 and is introduced into the secondary combustion chamber 1b from the upstream side, that is, from the rear wall 12. This air increases the pressure in the secondary combustion chamber 1b, that is, reduces the flow rate of primary combustion gas sucked into the secondary combustion chamber 1b from the primary combustion chamber 1a, thereby suppressing combustion in the primary combustion chamber 1a.

[0061] Therefore, by adjusting the flow rate of air passing through the third air supply duct 33 using the flow control valve 331, the combustion in the primary combustion chamber 1a can be controlled, and the combustion degree of the pet P and the internal temperature of the furnace body 1 can be maintained at an appropriate level.

[0062] In this way, according to this crematorium furnace 100, the air introduced into the furnace from one common blower 34 performs three functions: combustion promotion (air is sent from the first air supply duct 31 to the chimney 4 or downstream side of the secondary combustion chamber 1b), insulation (air is introduced from the second air supply duct 32 to the buffer chamber 1c), and combustion suppression (air is introduced from the third air supply duct 33 to the upstream side of the secondary combustion chamber 1b), thereby making it possible to achieve a simple configuration, compactness, and light weight.

[0063] Furthermore, the stabilizing blades 61 can prevent fluctuations in the flames blowing out from the burner 2, so that the pet P can be burned evenly and stably.

[0064] 3. Other Embodiments The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the invention. For example, the third air duct 33 may branch off from the first air duct 31 midway.

[0065] The tip of the first air duct 31 may be located midway in the chimney 4 .

[0066] The shape of the furnace body 1 is not limited to a rectangular parallelepiped, but may be, for example, a kamaboko (fish cake) shape. [Explanation of symbols]

[0067] 100 Portable Pet Crematorium P...Pet 1. Furnace body 1a Primary combustion chamber 1b Secondary combustion chamber 1c...Buffer chamber 1d...flue 1e First air inlet 2 burners 31...1st air duct 31a...Tip opening 32...Second ventilation duct 33...Third air duct 33 4. Chimney (exhaust port) 5. Labyrinth flow path 51 Labyrinth Wall 6. Burner mounting member 61. Stabilizing wing

Claims

1. A mobile pet crematorium mounted on a vehicle, a furnace body including a primary combustion chamber for burning pets housed inside, a secondary combustion chamber for introducing primary combustion gases generated by the burning of pets through a flue for secondary combustion and discharging them to the outside through an exhaust port (chimney), and a buffer chamber interposed between the primary combustion chamber and the secondary combustion chamber; a first air supply duct that supplies air flowing toward the outside into the exhaust port; a second air supply duct branching from the first air supply duct to supply air to the buffer chamber; A mobile pet crematorium characterized by the following:

2. a first air inlet to which the second air supply duct is connected is provided on one side of the buffer chamber, and the flue is disposed on the other side; The mobile pet crematorium according to claim 1, characterized in that the air introduced into the buffer chamber from the first air inlet flows from one side to the other within the buffer chamber and is introduced into the secondary combustion chamber through the flue.

3. The mobile pet crematorium according to claim 2, characterized in that the buffer chamber is provided with a labyrinth flow path formed by a labyrinth wall, and the air introduced into the buffer chamber from the first air inlet passes through the labyrinth flow path to reach the flue.

4. 2. A portable pet crematorium according to claim 1, further comprising a third air supply duct that directs a portion of the air introduced into the buffer chamber to the upstream side of the secondary combustion chamber opposite the exhaust port.

5. The first air supply duct is configured so that a certain portion of the air from the base end to which the air is supplied passes outside the furnace body, and the remaining portion passes through the secondary combustion chamber, and the tip port from which the air is discharged is arranged to face the exhaust port. A mobile pet crematorium as described in claim 1.

6. 6. The mobile pet crematorium according to claim 5, wherein the second air duct branches off from a portion of the first air duct that passes outside the furnace body and is connected to the buffer chamber.

7. The portable pet crematorium according to claim 1, characterized in that a burner mounting member to which a burner is attached is formed in the primary combustion chamber, and the burner mounting member is provided with stabilizing wings that expand toward the inside of the primary combustion chamber.

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