Trestle

Abstract

To facilitate temporary introduction, introduction and installation, removal or the like of an apparatus for removing dust.SOLUTION: A trestle according to the present invention includes: a plurality of support columns; a bottom part to which lower end portions of the support columns are fixed; a rail; a fixing part that is fixed to upper end portions of the support columns and fixes the rail; a trolley that moves along the rail; and a hanging part that is fixed to the trolley and suspends a pressure wave apparatus that emits pressure waves.SELECTED DRAWING: Figure 1A

Description

[Technical Field]

[0001] The present invention relates to a mount. [Background technology]

[0002] In incineration facilities for waste and wood chips, a boiler is installed next to the incinerator, and the heat from the high-temperature exhaust gas obtained from the combustion of waste in the incinerator is recovered in the boiler, and the recovered heat is used to generate steam at a specified temperature and pressure, which is then introduced into a turbine generator to generate electricity.The exhaust gas flowing from the incinerator to the boiler contains small particle size dust containing chlorine, sulfur, heavy metals, etc., and when this dust adheres to the boiler's heat transfer tubes, the adhered dust acts as an insulator, reducing the heat transfer efficiency.

[0003] One example of an invention for removing dust adhering to the heat transfer tubes of a boiler is the deposit removal device disclosed in Patent Document 1. This deposit removal device is placed on the outside of the side wall of the boiler and ignites a mixed gas of methane gas and oxygen gas to explode the mixed gas. The explosion of this mixed gas generates a pressure wave, which is released into the boiler and removes the dust adhering to the heat transfer tubes inside the boiler. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-175275 Summary of the Invention [Problem to be solved by the invention]

[0005] When installing the deposit removal device disclosed in Patent Document 1 on a boiler, first, the deposit removal device is transported near the boiler on a cart, as shown in Figure 7 of Patent Document 1, and then the deposit removal device is suspended by a crane installed on the power generation boiler facility and its associated facilities. Next, the blocking plate closing the opening of the connecting duct installed on the boiler is removed, the large-diameter cylindrical portion of the nozzle body of the deposit removal device is inserted, and the flange portion installed on the connecting duct and the flange portion of the nozzle body are fastened with bolts to install the deposit removal device on the boiler.

[0006] Because the structures of power generation boiler equipment and associated equipment vary depending on the equipment, the installation method disclosed in Patent Document 1 makes it difficult to lift and install the deposit removal device to the connecting duct if the building is not equipped with a crane or if a crane cannot be used at the installation location. Also, even when the deposit removal device described in Patent Document 1 is removed from the connecting duct for maintenance, in buildings where a crane cannot be used, it is difficult to remove the flange portion when the deposit removal device is not supported, which makes maintenance difficult.

[0007] The present invention has been made in view of the above, and aims to facilitate the temporary introduction, installation, and removal of a device that removes dust using pressure waves. [Means for solving the problem]

[0008] A stand according to one aspect of the present invention comprises a plurality of pillars, a bottom to which the lower ends of the pillars are fixed, a rail, a fixing part fixed to the upper ends of the pillars and fixing the rail, a trolley that moves along the rail, and a hanging part fixed to the trolley and suspending a pressure wave device that emits pressure waves.

[0009] In addition, in a stand according to one aspect of the present invention, the hanging portion may have an elastic body having elasticity and a chain having one end attached to the elastic body, and the pressure wave device may be hung from the other end of the chain.

[0010] In the gantry according to one aspect of the present invention, the elastic body may be a coil spring, and a central axis of the coil spring may be aligned along the horizontal direction.

[0011] In the stand according to one aspect of the present invention, the bottom portion may include casters and a jack for raising and lowering the bottom portion.

[0012] In the mount according to one aspect of the present invention, the bottom portion may have a block formed of resin on an upper surface thereof, and the support column may be fixed to the block.

[0013] Furthermore, the mount according to one aspect of the present invention may have an enclosure that covers the pressure wave device. [Effects of the Invention]

[0014] According to the present invention, the dust removal device can be easily temporarily installed, installed, and removed. [Brief explanation of the drawings]

[0015] [Figure 1A] FIG. 1A is a side view of a gantry and a pressure wave device according to an embodiment. [Figure 1B] FIG. 1B is a rear view of the gantry and pressure wave device according to the embodiment. [Figure 2] FIG. 2 is a diagram for explaining a method for assembling the gantry according to the embodiment. [Figure 3] FIG. 3 is a diagram for explaining a method for assembling the gantry according to the embodiment. [Figure 4] FIG. 4 is a diagram for explaining a method for assembling the gantry according to the embodiment. [Figure 5] FIG. 5 is a diagram for explaining a method for assembling the gantry according to the embodiment. [Figure 6] FIG. 6 is a diagram for explaining a method of assembling the gantry according to the embodiment. [Figure 7]FIG. 7 is a diagram for explaining a method for assembling the gantry according to the embodiment. [Figure 8] FIG. 8 is a diagram for explaining a method for assembling the gantry according to the embodiment. [Figure 9] FIG. 9 is a diagram for explaining a method for assembling the gantry according to the embodiment. [Figure 10] FIG. 10 is a diagram for explaining a method for assembling the gantry according to the embodiment. [Figure 11] FIG. 11 is a diagram for explaining a method for assembling the gantry according to the embodiment. [Figure 12] FIG. 12 is a diagram for explaining a method for attaching the pressure wave device to a stand. [Figure 13] FIG. 13 is a diagram for explaining a method for attaching a pressure wave device to a boiler. [Figure 14A] FIG. 14A is a side view of a pedestal and a pressure wave device according to a modified example. [Figure 14B] FIG. 14B is a rear view of the pedestal and pressure wave device according to the modified example. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments described below. In addition, in the description of the drawings, the same or corresponding elements are appropriately designated by the same reference numerals. Furthermore, it should be noted that the drawings are schematic, and the dimensional relationships between the elements may differ from the actual ones. There may also be parts in which the dimensional relationships and ratios between the elements differ from one another.

[0017] Additionally, in the drawings, an orthogonal coordinate system of X, Y, and Z axes is shown as appropriate, and directions are explained using this. In the space shown in the orthogonal coordinate system, the direction in which the X component increases is called the +X direction, and the direction in which the X component decreases is called the -X direction. Similarly, the Y and Z components are defined as the +Y direction, -Y direction, +Z direction, and -Z direction. For ease of explanation, the +Z direction is sometimes referred to as the upward direction and the -Z direction as the downward direction, and the Z axis direction may also be referred to as the up-down direction.

[0018] Fig. 1A is a side view of a pedestal 1 and a pressure wave device 2 according to one embodiment of the present invention, and Fig. 1B is a rear view of the pedestal 1 and the pressure wave device 2. Fig. 1A shows the pressure wave device 2 connected to a boiler 3. The boiler 3 is a boiler that recovers heat from high-temperature exhaust gas obtained from the combustion of waste in an incinerator.

[0019] The pressure wave device 2 is a device that burns a mixed gas of methane gas and oxygen gas to generate pressure waves that are emitted into the boiler 3, and uses the pressure waves to remove dust that has adhered to or accumulated inside the boiler 3. The pressure wave device 2 has a combustion chamber 21, a mixing chamber 22, an oxygen tank 23, a methane tank 24, an accumulator 25, an injection pipe 26, a spring unit 27, and an eyebolt 28.

[0020] The oxygen tank 23 is a tank that holds oxygen gas, and oxygen gas is supplied from a gas cylinder (not shown) via a shutoff valve. The methane tank 24 is a tank that holds methane gas, and methane gas is supplied from a gas cylinder (not shown) via a shutoff valve. The oxygen tank 23 is connected to the side surface of the mixing chamber 22 on the +Y direction side, and the methane tank 24 is connected to the side surface of the mixing chamber 22 on the -Y direction side. A transfer valve (not shown) is provided in the mixing chamber 22. When this transfer valve is opened, oxygen gas from the oxygen tank 23 and methane gas from the methane tank 24 are sent to the combustion chamber 21 and accumulator 25 via the mixing chamber 22.

[0021] The combustion chamber 21 is composed of a central cubic combustion chamber 21a and two tubular combustion chambers 21b connected to the combustion chamber 21a along the Y-axis. An injection pipe 26 is connected to the combustion chamber 21's side facing the -X direction, and an accumulator 25 is connected to the side facing the +X direction. The accumulator 25 has a piston inside and is supplied with nitrogen gas from a gas cylinder (not shown). The spring unit 27 is a device that absorbs shock caused by the combustion of the mixed gas and is attached to the injection pipe 26. The spring unit 27 has multiple springs that absorb shock caused by the combustion of the mixed gas. The injection pipe 26 is attached to a manhole 31 of the boiler 3 via a flange. An eyebolt 28 is provided on the surface of the combustion chamber 21 facing the +Z direction. The eyebolt 28 is suspended by a suspension part 139, thereby keeping the pressure wave device 2 horizontal.

[0022] When the pressure wave device 2 is in standby mode, the piston of the accumulator 25 is pressed against the injection pipe 26, isolating the combustion chamber 21 from the exhaust gas in the boiler 3. When the shutoff valve is opened, oxygen gas is filled into the oxygen tank 23, and methane gas is filled into the methane tank 24. When the pressures in the oxygen tank 23 and methane tank 24 reach specified values, the shutoff valve is closed. When the transfer valve of the mixing chamber 22 is opened, the oxygen gas in the oxygen tank 23 and the methane gas in the methane tank 24 are sent to the combustion chamber 21 and the accumulator 25, where they are mixed and become a mixed gas. After the transfer valve is closed to isolate the combustion chamber 21 from the oxygen tank 23 and the methane tank 24, the mixed gas is ignited and burned by a glow plug (not shown) in the accumulator 25. This combustion increases the pressure in the combustion chamber 21, causing the piston of the accumulator 25 to move backward. When the accumulator 25 retracts, the nitrogen gas continues to pressurize the accumulator 25, so the nitrogen in the accumulator 25 acts as a cushion to prevent the piston from colliding. This retraction of the piston causes combusted gas to flow from the accumulator 25 into the combustion chamber 21, causing the mixed gas in the combustion chamber 21 to combust rapidly. A pressure wave generated by this rapid combustion is released into the boiler 3 through the injection pipe 26.

[0023] The mount 1 is a frame for suspending the pressure wave device 2. The mount 1 is roughly composed of a bottom portion 11, support columns 12a to 12d, and a rail fixing portion 13.

[0024] The bottom 11, to which the lower ends of the pillars 12a to 12d are fixed, includes two joists 111 and 112 whose longitudinal direction is along the X-axis direction, two joists 113 and 114 whose longitudinal direction is along the Y-axis direction, and a plurality of resin blocks 117. The joists 111 to 114 are made of, for example, an aluminum alloy, but the material of the joists 111 to 114 is not limited to aluminum alloy and may be other metals. In order to make the frame 1 lightweight, the joists 111 to 114 are preferably made of a lightweight metal. The joist 113 is fastened to the end of the joist 111 on the -X direction side and the end of the joist 112 on the -X direction side with a bolt and a nut. The joist 114 is fastened to the end of the joist 111 on the +X direction side and the end of the joist 112 on the +X direction side with a bolt and a nut. The length of the joists 113 and 114 is preferably shorter than the length of the joists 111 and 112. By making the length of the joists 113 and 114 shorter than the length of the joists 111 and 112 and narrowing the width of the frame 1, the frame 1 can be made lighter.

[0025] Casters 115 are attached to the ends of the common joists 111 and 112 in the X-axis direction on the -Z direction side. The casters 115 are, for example, swivel casters, and have wheels, a top plate, forks, and shafts that support the wheels. Jack bolts 116 are attached to the ends and centers of the common joists 111 and 112 in the X-axis direction. The jack bolts 116 include a bolt and a nut, and by adjusting the position of the nut relative to the bolt, the fastened common joists 111 to 114 can be raised in the +Z direction or lowered in the -Z direction.

[0026] Resin blocks 117 are provided on the +Z direction side of the ends of joists 111, 112 on the -X direction side, and resin blocks 117 are also provided on the +Z direction side of the ends of joists 111, 112 on the +X direction side. Resin blocks 117 are made of synthetic resin, such as urethane foam, and are formed in the shape of a rectangular parallelepiped. Support columns 12a to 12d are fixed to resin blocks 117 on the +Z direction side.

[0027] The pillars 12a to 12d are made of a lightweight metal, such as an aluminum alloy. The material of the pillars 12a to 12d is not limited to an aluminum alloy and may be another metal. The pillar 12a is fixed on a resin block 117 provided at the end of the common joist 111 on the -X direction side, and the pillar 12b is fixed on a resin block 117 provided at the end of the common joist 112 on the -X direction side. The pillar 12c is fixed on a resin block 117 provided at the end of the common joist 111 on the +X direction side, and the pillar 12d is fixed on a resin block 117 provided at the end of the common joist 112 on the +X direction side.

[0028] The rail fixing portion 13, which is an example of a fixing portion fixed to the upper ends of the pillars 12a-12d and fixes the rail 137, includes structural members 131-134, beams 135 and 136, trolleys 138a and 138b, a hanging portion 139, and an eyebolt 140. The structural members 131-134 and beams 135 and 136 have, for example, a U-shaped cross section. The structural members 131-134 are arranged along the Y-axis direction, and the beams 135 and 136 are arranged along the X-axis direction. The structural members 131-134 and beams 135 and 136 are made of, for example, an aluminum alloy, but the material of the structural members 131-134 and beams 135 and 136 is not limited to aluminum alloy and may be other metals. Note that, in order to reduce the weight of the frame 1, the structural members 131-134 and beams 135 and 136 are preferably made of a lightweight metal.

[0029] Beam 135 has its -X direction end fixed to support pillar 12a and its +X direction end fixed to support pillar 12c. Beam 136 has its -X direction end fixed to support pillar 12b and its +X direction end fixed to support pillar 12d. Structural member 131 has its -Y direction end fixed to the -X direction end of beam 135, and structural member 132 has its +Y direction end fixed to the -X direction end of beam 136. Structural member 133 has its -Y direction end fixed to the +X direction end of beam 135, and structural member 134 has its +Y direction end fixed to the +X direction end of beam 136.

[0030] Rail 137, which is provided along the X-axis direction, has, for example, an I-shaped cross section. The end of rail 137 on the −X direction side is fixed to the end of structural material 131 on the +Y direction side and the end of structural material 132 on the −Y direction side. Rail 137 is also fixed to the end of structural material 133 on the +Y direction side and the end of structural material 134 on the −Y direction side.

[0031] Trolleys 138a and 138b are plain trolleys that move while suspending heavy loads. Trolleys 138a and 138b are installed on rails 137 at a distance from each other and move in the X-axis direction along rails 137. Trolley 138a is located on the -X direction side of structural members 133 and 134, and trolley 138b is located on the +X direction side of structural members 133 and 134.

[0032] The suspending unit 139 is a device that suspends the pressure wave device 2. The end of the suspending unit 139 on the -X direction side is fixed to the trolley 138a, and the end on the +X direction side is fixed to the trolley 138b. The suspending unit 139 has a fixed pulley 139a, an elastic unit 139b, a chain 139c, a connecting fitting 139d, and a turnbuckle 139e. The elastic unit 139b has, for example, a metal coil spring, which is an example of an elastic body, and the central axis of the coil spring is aligned with the X-axis direction (horizontal direction). Note that the elastic body included in the elastic unit 139b is not limited to a coil spring and may be rubber. The elastic body included in the elastic unit 139b may also be an air damper or an oil damper. The turnbuckle 139e is connected to the elastic unit 139b. The chain 139c is hung on a fixed pulley 139a, with one end fixed to a turnbuckle 139e and the other end fixed to a connecting fitting 139d. The connecting fitting 139d is hung on the eyebolt 28 to suspend the pressure wave device 2. The turnbuckle 139e is used to adjust the lifting height of the pressure wave device 2.

[0033] Next, a method for assembling the gantry 1 will be described. Figures 2 to 11 are schematic diagrams showing a method for assembling the gantry 1. When assembling the gantry 1, a worker attaches casters 115 and jack bolts 116 to the joists 111 and 112, as shown in Figure 2. Next, a worker fixes the joists 113 and 114 to the joists 111 and 112 with bolts and nuts, as shown in Figure 3.

[0034] Next, as shown in FIG. 4, the worker fixes resin block 117 to the surfaces of joists 111 and 112 on the +Z direction side, and then fixes pillars 12a to 12d to the surfaces of resin block 117 on the +Z direction side, as shown in FIG. 5. Next, as shown in FIG. 6, the worker spans beam 135 between pillars 12a and 12c and fixes beam 135 to pillars 12a and 12c with bolts and nuts. Also, as shown in FIG. 6, the worker spans beam 136 between pillars 12b and 12d and fixes beam 136 to pillars 12b and 12d with bolts and nuts. Note that when fixing beam 135 to pillars 12a and 12c and when fixing beam 136 to pillars 12b and 12d, the worker preferably uses a slinging device such as a wire rope or chain block (not shown) on eyebolt 140 to prevent frame 1 from falling over during assembly. Next, as shown in FIG. 7, the worker fixes structural members 131 and 133 to beam 135 with bolts and nuts, and fixes structural members 132 and 134 to beam 136 with bolts and nuts.

[0035] Next, the worker fixes the rail 137 to the structural members 131 to 134, as shown in FIG. 8. FIG. 9 is a diagram showing an example of a method for fixing the rail 137 to the structural members 131 to 134. The rail 137 has plate-shaped protrusions 137a protruding in the Y-axis direction on the -Y and +Y sides. The protrusions 137a are formed with holes 137b through which bolts (not shown) pass. The end of the structural member 133 on the +Y side is formed with holes 133a through which bolts (not shown) pass. Although not shown, the end of the structural member 134 on the -Y side is also formed with holes 133a through which bolts (not shown) pass. The end of the structural member 133 on the +Y side is overlapped with the protrusions 137a on the -Y side of the rail 137, and the bolts passing through the holes 133a and 137b are tightened with nuts, thereby fixing the rail 137 to the structural member 133. In addition, the rail 137 is fixed to the structural material 134 by overlapping the end of the structural material 134 on the -Y direction side with the protrusion 137a on the +Y direction side of the rail 137 and tightening the bolt passing through the holes 133a and 137b with a nut.

[0036] Note that rail 137 also has protrusions 137a with holes 137b formed on the -Y and +Y directions at its end on the -X direction side. Holes 133a through which bolts (not shown) pass are formed at the end on the +Y direction side of structural material 131 and the end on the -Y direction side of structural material 132. Rail 137 is fixed to structural material 131 by overlapping the end on the +Y direction side of structural material 131 with protrusion 137a on the -Y direction side of rail 137 and tightening a bolt passing through holes 133a and 137b with a nut. Rail 137 is fixed to structural material 132 by overlapping the end on the -Y direction side of structural material 132 with protrusion 137a on the +Y direction side of rail 137 and tightening a bolt passing through holes 133a and 137b with a nut.

[0037] Next, the worker attaches trolleys 138a and 138b to rail 137, and attaches hanging parts 139 to trolleys 138a and 138b, as shown in Fig. 10. Next, the worker attaches connecting fitting 139d to chain 139c of hanging part 139, as shown in Fig. 11.

[0038] Next, a method for attaching the pressure wave device 2 to the pedestal 1 and a method for attaching the pressure wave device 2 to the boiler 3 will be described. Fig. 12 is a schematic diagram showing a method for attaching the pressure wave device 2 to the pedestal 1, and Fig. 13 is a schematic diagram showing a method for attaching the pressure wave device 2 to the boiler 3.

[0039] When attaching the pressure wave device 2 to the frame 1, the worker hangs the pressure wave device 2 by hanging the connecting fitting 139d on the eyebolt 28 as shown in Figure 12. When attaching the pressure wave device 2 to the boiler 3, the worker moves the frame 1 with the hanging pressure wave device 2 to the vicinity of the boiler 3 using the casters 115 as shown in Figure 13. Next, the worker adjusts the height of the joists 111, 112 with the jack bolts 116. By adjusting the height of the joists 111, 112, the positions of the supports 12a-12d and the rail fixing part 13 in the Z-axis direction are adjusted, and the position of the injection pipe 26 of the pressure wave device 2 hung by the hanging part 139 in the Z-axis direction is also adjusted. The worker adjusts the jack bolt 116 to align the position of the spray pipe 26 in the Z-axis direction with the position of the manhole 31, inserts the insertion portion 29 of the spray pipe 26 into the manhole 31, and attaches the spray pipe 26 to the manhole 31.

[0040] As described above, according to this embodiment, the mounting base 1 can be easily assembled in a short time by a small number of people near the manhole 31 where the pressure wave device 2 is to be attached, as shown in Figures 2 to 12, without the need for welding work, and the pressure wave device 2 can be suspended therefrom. This makes it easy to mount the pressure wave device 2 to the manhole 31. Furthermore, since the mounting base 1 can be easily assembled and disassembled, for example, when installing the pressure wave device 2 on a boiler 3 for trial purposes, temporary installation and removal can be performed in a short time, facilitating trial operation of the pressure wave device 2. Furthermore, in this embodiment, the rail 137 of the mounting base 1 serves to suspend the pressure wave device 2 and also to move the pressure wave device 2 in the X-axis direction. Therefore, compared to a configuration in which rails are attached to a building, the configuration for suspending the pressure wave device 2 can be made smaller, lighter, and lower in height.

[0041] Furthermore, in this embodiment, when a pressure wave is emitted from the pressure wave device 2, a force in the +X direction acts on the pressure wave device 2 as a reaction to the pressure wave being emitted in the -X direction. However, because the trolleys 138a and 138b are movable in the X-axis direction, horizontal movement of the pressure wave device 2 can be absorbed. Furthermore, in this embodiment, the elastic portion 139b of the hanging portion 139 absorbs vibration of the pressure wave device 2 in the Z-axis direction with a coil spring, so vibration of the pressure wave device 2 in the Z-axis direction can be suppressed. Furthermore, in this embodiment, the support columns 12a to 12d are fixed to the resin block 117, so vibrations caused by the emission of pressure waves from the pressure wave device 2 are absorbed by the resin block 117, and transmission of the vibrations to the floor can be suppressed. Furthermore, in this embodiment, because the elastic portion 139b is installed horizontally, the height of the stand 1 can be reduced, thereby making it more compact.

[0042] Furthermore, in this embodiment, the base 1 is equipped with casters 115, which allows the suspended pressure wave device 2 to be easily moved, so that when maintenance of the pressure wave device 2 is to be performed, the pressure wave device 2 removed from the manhole 31 can be easily moved and the maintenance can be performed. Furthermore, in this embodiment, the base 1 is equipped with jack bolts 116, which allows the height of the pressure wave device 2 to be adjusted, and the height of the injection pipe 26 can be easily matched to the height of the manhole 31.

[0043] In this embodiment, when adjusting the height of the pressure wave device 2, the resin block 117 may be replaced with a resin block 117 having a different height in the Z-axis direction, thereby adjusting the height of the pressure wave device 2. Since the height of the pressure wave device 2 changes by replacing the resin block 117, the height of the pressure wave device 2 can be easily changed according to the height of the manhole 31.

[0044] [Variations] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and can be implemented in various other forms. For example, the above-described embodiments may be modified as follows to implement the present invention. The above-described embodiments and the following modifications may be combined with each other. The present invention also includes configurations in which the components of the above-described embodiments and modifications are appropriately combined. Furthermore, further effects and modifications can be easily derived by those skilled in the art. Therefore, the broader aspects of the present invention are not limited to the above-described embodiments and modifications, and various modifications are possible.

[0045] In the above-described embodiment, the pressure wave device 2 is attached to the boiler 3, but the attachment of the pressure wave device 2 is not limited to the boiler 3. For example, the pressure wave device 2 suspended by the frame 1 may be attached to an air preheater or a cooling tower that lowers the temperature of the exhaust gas that has passed through the boiler 3, or a bag filter that collects dust contained in the exhaust gas.

[0046] In the present invention, the pressure wave device 2 may be covered with an enclosure to prevent the sound generated when pressure waves are emitted from the pressure wave device 2 from spreading throughout the building. Fig. 14A is a side view of a gantry 1 according to a modified example, and Fig. 14B is a rear view of the gantry 1 according to the modified example. The gantry 1 according to the modified example is equipped with an enclosure 4. The enclosure 4 is a housing that houses the pressure wave device 2. Each member constituting the enclosure 4 is preferably made of a lightweight metal to make the gantry 1 lightweight.

[0047] The enclosure 4 includes side plates 41a to 41d, 42a to 42c, 43a to 43c, top plates 41e, 42d, 43d, and bottom plates 41f, 42e, 43e, all made of lightweight metal. The bottom plate 41f is a rectangular plate-like member that is hung across and fixed to the common joists 111 and 112. The side plates 41a to 41d are also rectangular plate-like members that are fixed onto the surface of the bottom plate 41f on the +Z direction side. The side plate 41a is fixed to the bottom plate 41f at its -X-direction end along the YZ plane, the side plate 41b is fixed to the bottom plate 41f at its +X-direction end along the YZ plane, the side plate 41c is fixed to the bottom plate 41f at its -Y-direction end along the XZ plane, and the side plate 41d is fixed to the bottom plate 41f at its +Y-direction end along the XZ plane. The side plate 41c has holes through which the combustion chamber 21b and the methane tank 24 pass, and the side plate 41d has holes through which the combustion chamber 21b and the oxygen tank 23 pass. The top plate 41e is a rectangular plate-shaped member and is fixed to the +Z-direction ends of the side plates 41a to 41d along the XY plane. The top plate 41e has holes through which the eyebolt 28 passes.

[0048] The bottom plate 42e is a rectangular plate-like member and is fixed to the surface of the side plate 41c on the -Y direction side along the XY plane. The side plates 42a to 42c are also rectangular plate-like members and are fixed to the surface of the bottom plate 42e on the +Z direction side. The side plate 42a is fixed to the bottom plate 42e at its -X direction end along the YZ plane, the side plate 42b is fixed to the bottom plate 42e at its +X direction end along the YZ plane, and the side plate 42c is fixed to the bottom plate 42e at its -Y direction end along the XZ plane. The top plate 42d is a rectangular plate-like member and is fixed to the +Z direction end of the side plates 42a to 42c and to the -Y direction surface of the side plate 41c along the XY plane.

[0049] The bottom plate 43e is a rectangular plate-like member and is fixed to the surface of the side plate 41d on the +Y direction side along the XY plane. The side plates 43a to 43c are rectangular plate-like members and are fixed to the surface of the bottom plate 43e on the +Z direction side. The side plate 43a is fixed to the bottom plate 43e at an end on the -X direction side along the YZ plane, the side plate 43b is fixed to the bottom plate 43e at an end on the +X direction side along the YZ plane, and the side plate 43c is fixed to the bottom plate 43e at an end on the +Y direction side along the XZ plane. The top plate 43d is a rectangular plate-like member and is fixed to the end on the +Z direction side of the side plates 43a to 43c and to the surface of the side plate 41d on the +Y direction side along the XY plane. The enclosure 4 covers the entire pressure wave device 2, and therefore can prevent the sound generated when pressure waves are emitted from the pressure wave device 2 from spreading inside the building.

[0050] In the above-described embodiment, the gantry 1 is provided with the casters 115. However, in the present invention, the gantry 1 may not be provided with the casters 115. Furthermore, in the present invention, the gantry 1 may not be provided with the jack bolts 116. Furthermore, in the present invention, the elastic part 139b may be installed so that the central axis of the coil spring of the elastic part 139b is aligned with the Z-axis direction. Furthermore, in the present invention, the gantry 1 may not be provided with the suspending part 139. If the gantry 1 does not have the suspending part 139, the pressure wave device 2 may be suspended from a trolley 138a. Furthermore, in the above-described embodiment, the gantry 1 is provided with the resin block 117. However, in the present invention, the gantry 1 may not be provided with the resin block 117, and the pillars 12a and 12c may be directly fixed to the floor joist 111, and the pillars 12b and 12d may be directly fixed to the floor joist 112. [Explanation of symbols]

[0051] 1 Mounting stand 2. Pressure wave device 3. Boiler 11 Bottom 12a~12d Post 13 Rail fixing part 115 Caster 116 Jack bolt 117 Resin Block 137 Rail 138a, 138b trolley 139 Hanging part

Claims

1. Multiple pillars and a bottom portion to which the lower end portion of the support is fixed; Rails and a fixing portion fixed to an upper end of the support pole and fixing the rail; a trolley that moves along the rail; a hanging part fixed to the trolley for hanging a pressure wave device that emits pressure waves; A stand comprising:

2. The hanging portion includes an elastic body having elasticity and a chain having one end attached to the elastic body, The pressure wave device is suspended from the other end of the chain. The mount according to claim 1 .

3. the elastic body is a coil spring, The central axis of the coil spring is aligned horizontally. The mount according to claim 2.

4. The bottom is equipped with casters and a jack for raising and lowering the bottom. The cradle of claim 1 , comprising:

5. the bottom portion has a block formed of resin on an upper surface thereof, The support is fixed to the block. The mount according to claim 1 .

6. an enclosure enclosing the pressure wave device; The mount according to claim 1 .

Images