Attachment structure of high-pressure fluid hose and atomizer

Abstract

To reduce a workload of a worker by suppressing the difficulty of the positioning work of a high-pressure fluid hose while maintaining the high airtightness of an attachment structure portion of the high-pressure fluid hose.SOLUTION: An attachment structure 1 of a high-pressure fluid hose includes an introduction member 11 in which a flange 112 is arranged at a periphery of one terminal opening, a circular disc-shaped connected flange 12, and a hose holder 13 sandwiched by the introduction member 11 and the connected flange 12, and having a circular truncated-cone shaped contour. The connected flange 12 has a hose holder accommodation recess 121 having an internal shape which is substantially the same as the contour of the hose holder 13, the hose holder 13 is formed by a combination of a pair of semi-circular cone shape components 13A, 13B, and is fit into the hose holder accommodation recess 121 in a state that the semi-circular cone shaped components 13A, 13B are pressed toward a center of a hose insertion hole 132 by the connected flange 12 and the flange 112.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a mounting structure for a high-pressure fluid hose and an atomizing device. [Background technology]

[0002] As an example, in processes for recovering valuable materials such as copper, nickel, and cobalt from "waste lithium ion batteries," an atomization device (atomization device 10 (see FIG. 11)) is widely used in which high-pressure water is sprayed onto molten metal to crush the metal into droplets, and the crushed and scattered droplets are solidified (see Patent Document 1).

[0003] In the above-mentioned atomizing device 10, a manifold-type injector 5 that injects a high-pressure fluid (e.g., high-pressure water) into the molten metal M is installed inside the casing 3. A high-pressure fluid hose 2 for supplying the high-pressure fluid to the manifold-type injector 5 is attached to the casing 3 in a manner that penetrates the outer wall 31 through a hose introduction pipe 111 provided in the outer wall 31 of the casing 3 (see FIG. 10).

[0004] In the atomizing device 10 configured as described above, in order to prevent hydrogen gas generated inside the device during operation from leaking to the outside, high airtightness is required for the casing 3. Therefore, it is naturally required that high airtightness is maintained also in the mounting structure for the high-pressure fluid hose 2 to the hose introduction pipe 111.

[0005] On the other hand, the high-pressure fluid hose 2 for supplying pressurized fluid to the manifold-type injector 5 installed inside the casing 3 usually has some kind of reinforcing structure added to it to increase pressure resistance, such as a structure in which a steel or hard resin wire is enclosed in a spiral shape in the middle of the hose's wall thickness. For this reason, the high-pressure fluid hose 2 is heavy and has poor flexibility, and further has the property of easily developing a bending habit once it is bent in one direction.

[0006] When installing the high-pressure fluid hose 2 in the casing 3, which is an airtight structure, it is necessary to accurately align the respective centre positions of the high-pressure fluid hose 2 and the hose introduction pipe 111 to reliably maintain airtightness; however, due to the nature of the high-pressure fluid hose 2 described above, the task of accurately aligning the positions of the two is extremely difficult and places a heavy burden on the installation worker. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2022-39446 A Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention has been made in consideration of the above-mentioned situation, and has an object to reduce the workload of an operator in installing a high-pressure fluid hose into an airtight structure that requires high airtightness, such as a casing in an atomization device into which a manifold-type injector is installed, while maintaining high airtightness in the installation structure for the high-pressure fluid hose, thereby reducing the difficulty of the alignment work for the high-pressure fluid hose and reducing the workload of the operator. [Means for solving the problem]

[0009] The present inventors have come to the realization that the above-mentioned problems can be solved by a high-pressure fluid hose mounting structure, which will be described in detail below, and have completed the present invention. Specifically, the present invention provides the following.

[0010] (1) A mounting structure for a high-pressure fluid hose for introducing a high-pressure fluid hose into an airtight structure, comprising: a high-pressure fluid hose; an introduction member which is a tubular member having a flange provided around the periphery of an opening at one end of a cylindrical hose introduction pipe and which is joined to the outer wall of the airtight structure; a connected flange which is a disk-shaped member having a hose insertion hole in the center through which the high-pressure fluid hose is inserted, the connected flange being attached to the side of the high-pressure fluid hose and joined to the flange by a fixing bolt; and a hose holder sandwiched between a connected flange and a hose holder, wherein the connected flange has a hose holder accommodating recess having an inside shape substantially the same as the outer shape of the hose holder, on its surface facing the flange, and the hose holder is comprised of a pair of semi-frustum-shaped parts, each of which has a shape obtained by dividing a truncated cone into two evenly by a plane including a central axis, and each of the semi-frustum-shaped parts is fitted into the hose holder accommodating recess with the semi-frustum-shaped parts pressed toward the center of the hose insertion hole by the flange and the connected flange.

[0011] According to the mounting structure for a high-pressure fluid hose described in (1), when a high-pressure fluid hose is to be introduced into an airtight structure that requires high airtightness, the difficulty of aligning the high-pressure fluid hose can be reduced while maintaining high airtightness in the mounting structure portion of the high-pressure fluid hose.

[0012] (2) A mounting structure for a high-pressure fluid hose as described in (1), wherein the inner surface of the hose insertion hole and / or the surface surrounding the opening of the flange has a ring-shaped groove, and a ring-shaped seal member made of an elastic material is fitted into the ring-shaped groove.

[0013] According to the mounting structure for a high-pressure fluid hose of (2), the high airtightness of the mounting structure for a high-pressure fluid hose described in (1) can be more reliably maintained.

[0014] (3) A mounting structure for a high-pressure fluid hose as described in (1) or (2), in which a low-friction coating layer is formed on the inclined inner surface of the hose holder accommodating recess and / or the inclined outer surface of the hose holder.

[0015] According to the high-pressure fluid hose mounting structure of (3), the ease of mounting the high-pressure fluid hose to the interior of an airtight structure requiring high airtightness is further improved.

[0016] (4) An atomization device having a manifold-type injector installed inside an airtight casing, the high-pressure fluid hose being attached to the casing by the mounting structure for the high-pressure fluid hose described in (1) or (2).

[0017] (4) According to the atomization device, when installing a high-pressure fluid hose to be introduced into a casing that requires high airtightness, the difficulty of aligning the high-pressure fluid hose can be reduced while maintaining high airtightness in the installation structure of the high-pressure fluid hose, thereby reducing the workload of workers installing and maintaining the atomization device. Effect of the Invention

[0018] According to the present invention, in the installation work of a high-pressure fluid hose to be introduced into an airtight structure requiring high airtightness, such as a casing in which a manifold-type injector is installed in an atomization device, the difficulty of the alignment work of the high-pressure fluid hose can be reduced, thereby reducing the workload of the worker, while maintaining high airtightness in the installation structure portion of the high-pressure fluid hose. [Brief description of the drawings]

[0019] [Figure 1] 1 is a side view (sectional view) of a mounting structure for a high-pressure fluid hose of the present invention. [Diagram 2]3 is a side view (sectional view) of an introduction member that constitutes the mounting structure for a high-pressure fluid hose of the present invention. FIG. [Diagram 3] 3 is a plan view of a connected flange that constitutes the mounting structure for a high-pressure fluid hose of the present invention. FIG. [Figure 4] FIG. 4 is a side view (sectional view) of the connected flange shown in FIG. 3. [Diagram 5] 1 is a perspective view of a hose holder constituting the mounting structure for a high-pressure fluid hose of the present invention. FIG. [Figure 6] FIG. 6 is a side view of the hose holder shown in FIG. 5. [Figure 7] 1 is an exploded perspective view of a mounting structure for a high-pressure fluid hose according to the present invention; [Figure 8] 4 is a diagram for explaining the function of the mounting structure for a high-pressure fluid hose of the present invention. [Figure 9] FIG. 2 is a perspective view of a manifold type injector. [Figure 10] 1 is a diagram showing the configuration of the main parts of an example of an atomizing device in which a manifold-type injector to which a high-pressure fluid hose is attached by the mounting structure for a high-pressure fluid hose of the present invention is installed. [Figure 11] FIG. 1 is a diagram showing an example of the overall configuration of an atomizing device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, preferred embodiments of the mounting structure for a high-pressure fluid hose of the present invention will be described, however, the present invention is not limited to the following embodiments.

[0021] <High pressure fluid hose installation structure> The mounting structure for a high-pressure fluid hose of the present invention is a technical means for mounting a high-pressure fluid hose to the outer wall of an airtight structure while maintaining the airtightness of the airtight structure when a high-pressure fluid hose is introduced inside the airtight structure where high airtightness is required.

[0022] A specific example of an airtight structure to which the mounting structure for a high-pressure fluid hose of the present invention can be installed is the casing 3 housing the manifold-type injector 5 therein in the atomizing device 10 shown generally in Fig. 11. Hereinafter, a mounting structure 1 for a high-pressure fluid hose, which is a mounting structure intended for mounting a high-pressure fluid hose 2 to such a casing 3, will be described in detail as a preferred embodiment of the mounting structure for a high-pressure fluid hose of the present invention.

[0023] However, the airtight structure to which the mounting structure for a high-pressure fluid hose of the present invention is to be installed is not limited to the above casing. The mounting structure for a high-pressure fluid hose of the present invention can be used as a means for mounting a high-pressure fluid hose to various airtight structures that require high airtightness, similar to the above casing. Furthermore, for the high-pressure fluid hose to be mounted to the airtight structure, various existing high-pressure fluid hoses that have a reinforcing structure added to enhance pressure resistance and therefore have increased difficulty in aligning during mounting can be used without any particular limitation.

[0024] 1, a mounting structure 1 for a high-pressure fluid hose, which is one example of a preferred embodiment of the present invention, is configured to include at least a high-pressure fluid hose 2, an introduction member 11 joined to an outer wall 31 of a casing (airtight structure) 3, a connected flange 12 that is attached to the side of the high-pressure fluid hose 2 and is also joined to the introduction member 11, and a truncated cone-shaped hose holder 13 that is sandwiched between the introduction member 11 and the connected flange 12. All of the above three members (the introduction member 11, the connected flange 12, and the hose holder 13) that configure the mounting structure 1 for a high-pressure fluid hose can be made of metal members made of stainless steel (e.g., S304).

[0025] In the mounting structure 1 for a high-pressure fluid hose, the above three components (introducing member 11, connected flange 12, and hose holder 13) are concentrically arranged as shown in Figure 7, and further, as shown in Figures 1 and 8(B), the introducing member 11 and connected flange 12 which hold the hose holder 13 are firmly joined by fixing bolts 14, thereby forming an integrated state of these three components. In this state, the mounting structure 1 for a high-pressure fluid hose can maintain high airtightness of the mounting structure portion of the high-pressure fluid hose 2 to the outer wall 31 of the casing (airtight structure) 3.

[0026] In the mounting structure 1 for a high-pressure fluid hose, the high-pressure fluid hose 2 passes through a through passage formed by concentrically connecting holes for passing the high-pressure fluid hose 2, which are formed in the center of the above-mentioned three components (the introduction component 11, the connected flange 12, and the hose holder 13) that constitute the mounting structure 1 for a high-pressure fluid hose, and passes through the outer wall 31 of the casing (airtight structure) 3 and is introduced into the inside of the casing (airtight structure) 3.

[0027] [Introducing materials] 2, the introduction member 11 constituting the mounting structure 1 for a high-pressure fluid hose is a tubular member having a flange 112 provided around an opening 113 at one end of a cylindrical hose introduction pipe 111. In the mounting structure 1 for a high-pressure fluid hose, the opening at the other end (the end not having the flange 112) of the hose introduction pipe 111 is joined to the outer wall 31 of the casing 3. The inner diameter of the hose introduction pipe 111 may be designed to be an appropriate size slightly larger than the outer shape of the high-pressure fluid hose 2 so that the high-pressure fluid hose 2 can slide inside the pipe as necessary with the high-pressure fluid hose 2 inserted therethrough. As an example, the inner diameter of the hose introduction pipe 111 is preferably designed to be a size that provides a clearance of about 1 mm on one side with respect to the outer diameter of the high-pressure fluid hose 2 to be attached. As a result, even if the high-pressure fluid hose 2 is deformed due to its tendency to easily develop a bending habit as described above, the high-pressure fluid hose 2 can be easily connected to the manifold type injector 5, which is provided inside the casing 3 or the like and to which the high-pressure fluid hose 2 is to be connected, by passing the hose introduction pipe 111 set at the above clearance. If a cap for connecting to the manifold type injector 5 provided inside the casing 3 or the like is provided at the end of the high-pressure fluid hose 2 (specifically, the end that is inserted into the end opening 113 of the introduction member 11), the above clearance must be set so that at least the cap can pass through the inside of the hose introduction pipe 111. Since the mounting structure 1 for a high-pressure fluid hose has the above configuration, the high-pressure fluid hose 2 can be attached and detached more efficiently.

[0028] The flange 112 is a disk-shaped member, and has an opening 113 formed in the center for inserting the high-pressure fluid hose 2 into the hose introduction pipe 111. In addition, a plurality of bolt holes 115 for screwing in the fixing bolts 14 are provided along any of the circumferences near the outer edge.

[0029] In addition, it is preferable that a ring-shaped groove 114 is provided on the surface of the flange 112 along any circumference around the opening 113, into which a ring-shaped seal member 15 made of an elastic material is fitted in the manner shown in Fig. 1 and Fig. 8(A)(B). In the mounting structure 1 for a high-pressure fluid hose, it is preferable that the ring-shaped seal member 15 made of an elastic material is fitted in the ring-shaped groove 114 of the flange 112. As the ring-shaped seal member 15, an "O-ring" made of an elastic material such as various synthetic rubbers can be preferably used. An "O-ring" is a general-purpose sealing member that is made of an elastic material and is an endless ring having a substantially circular cross section.

[0030] [Connected flange] The connected flange 12 is a member that constitutes the mounting structure 1 for a high-pressure fluid hose when it is fitted around the side of the high-pressure fluid hose 2 that constitutes the mounting structure 1 for a high-pressure fluid hose. As shown in Figs. 3 and 4, the connected flange 12 is a disk-shaped member having approximately the same outer shape as the flange 112 of the introduction member 11, and like the flange 112, a hose insertion hole 123 that is an opening for inserting the high-pressure fluid hose 2 is formed in the center. The inner diameter of the hose insertion hole 123 is preferably set to a size that ensures an appropriate clearance with respect to the outer diameter of the high-pressure fluid hose 2 in order to facilitate the work of attaching and detaching the high-pressure fluid hose 2 to and from the high-pressure fluid hose 2. In addition, the connected flange 12 is provided with a plurality of bolt holes 124 along any circumference near its outer edge at positions that can communicate with the bolt holes 115 of the flange 112.

[0031] 4, the connected flange 12 has a hose holder accommodating recess 121 on one surface (the surface facing the flange 112 of the introduction member 11 when integrated into the mounting structure 1 for a high-pressure fluid hose). The hose holder accommodating recess 121 is a recess having a truncated conical inside shape with a tapered inclined inner side surface 122 whose opening diameter gradually decreases towards the bottom. The inside shape of the hose holder accommodating recess 121 is made substantially the same as the outer shape of the hose holder 13 so that the hose holder 13 can be accommodated by engaging it therein without any gaps.

[0032] The diameter of the bottom surface of the hose holder accommodating recess 121 is equal to or larger than the opening diameter of the above-mentioned hose insertion hole 123 , and the hose insertion hole 123 is formed in the bottom surface of the hose holder accommodating recess 121 .

[0033] Furthermore, when the connected flange 12 is pressed against and connected to the flange 112 of the introduction member 11, it is necessary for both parts (semicircular truncated cone-shaped parts 13A, 13B) constituting the hose holder 13 to slide appropriately while maintaining the inclined outer side surface 131 of the hose holder 13 and the inclined inner side surface 122 of the hose holder accommodating recess 121 of the connected flange 12 in contact with each other (i.e., while maintaining a state in which the two rub against each other), so it is more preferable that a low-friction coating layer made of PTFE (polytetrafluoroethylene) or the like is formed on the inclined inner side surface 122 of the hose holder accommodating recess 121. Details of the manner in which the hose holder 13 is accommodated inside the hose holder accommodating recess 121 will be described later.

[0034] [Hose holder] The hose holder 13 constituting the mounting structure 1 for a high-pressure fluid hose is, as shown in Figures 5 and 6, a generally disk-shaped member having a truncated cone-shaped outer shape with a tapered inclined outer surface 131 on the side and a hose insertion hole 132 penetrating in the direction of the central axis. The hose holder 13 is formed by combining a pair of semi-frustum-shaped parts 13A and 13B each having a shape obtained by equally dividing the above-mentioned truncated cone shape into two parts by a plane including the central axis. When mounting the hose holder 13 to the high-pressure fluid hose 2, the high-pressure fluid hose 2 is sandwiched between the semi-frustum-shaped parts 13A and 13B from above and below.

[0035] In the hose holder 13, the inner diameter of the hose insertion hole 132 formed by combining the semicircular truncated cone parts 13A and 13B is preferably set to be substantially equal to the diameter obtained by adding the "compression allowance" of the ring-shaped seal member 16 to the outer diameter of the high-pressure fluid hose 2 on both sides. Here, the "compression allowance" is the distance defined by the following [Equation 1], and in this example, it indicates the protruding height of the ring-shaped seal member 16 that protrudes slightly from the ring-shaped groove portion 133 toward the inner surface of the hose insertion hole 132 when the ring-shaped seal member 16 is fitted into the ring-shaped groove portion 133 formed on the inner surface of the hose insertion hole 132. [Formula 1] Squeezing allowance = Wire diameter of O-ring (in this example, ring-shaped seal member 16) - Groove depth (in this example, the depth of ring-shaped groove portion 133)

[0036] When the connected flange 12 is pressed against and connected to the flange 112 of the introduction member 11 to press the ring-shaped seal member 16 against the high-pressure fluid hose 2, the portion of the ring-shaped seal member 16 that protrudes slightly from the ring-shaped groove portion 133 toward the inner surface of the hose insertion hole 132 is crushed, generating a seal stress, and the above-mentioned "crush margin" is widely used as an index for determining such a seal stress (see JIS B2401-2:2012 "O-rings - Part 2: Shape and dimensions of housing"). In the mounting structure 1 for a high-pressure fluid hose, the inner diameter of the hose insertion hole 132 is designed to be an appropriate size using this index with respect to the "crush margin" of the ring-shaped seal member 16, thereby generating an appropriate seal stress.

[0037] In the mounting structure 1 for a high-pressure fluid hose, the hose holder 13 is fitted into the hose holder accommodating recess 121 with each of the semi-conical parts 13A, 13B sandwiched between the flange 112 of the introduction member 11 and the connected flange 12, as shown in Figure 8(B), and pressed toward the center of the hose insertion hole 132.

[0038] And, it is more preferable that the inclined outer side surface 131 of the hose holder 13 is also formed with a low friction coating layer made of PTFE (polytetrafluoroethylene) or the like, similar to the inclined inner side surface 122 of the hose holder accommodating recess 121 .

[0039] It is preferable that a ring-shaped groove 133 is provided on the inner surface of the hose fitting hole 132 in the hose holder 13, into which the ring-shaped seal member 16 is fitted in the manner shown in Figures 1 and 8. In the mounting structure 1 for a high-pressure fluid hose, it is preferable that the ring-shaped seal member 16, such as an "O-ring", is fitted in the ring-shaped groove 133 on the inner surface of the hose fitting hole 132, similar to the ring-shaped groove 114 of the flange 112.

[0040] [How to install a high pressure fluid hose] In the following, an example of a preferred embodiment of a method for attaching a high-pressure fluid hose using the attachment structure for a high-pressure fluid hose of the present invention will be described. When attaching a high-pressure fluid hose 2 to an airtight structure such as a casing 3 that houses a manifold-type injector 5 therein using the attachment structure 1 for a high-pressure fluid hose, a ring-shaped seal member 15 such as an "O-ring" is fitted in advance into the ring-shaped groove 114 of the flange 112. In addition, the ring-shaped seal member 16 that will be fitted into the ring-shaped groove 133 on the inner surface of the hose insertion hole 132 is previously attached to an appropriate position on the side of the high-pressure fluid hose 2. Thereafter, the high-pressure fluid hose 2 is inserted into the hose insertion hole 123 of the connected flange 12, so that the connected flange 12 is attached to the side of the high-pressure fluid hose 2.

[0041] Next, the high-pressure fluid hose 2 in the above state is inserted into the hose introduction pipe 111 from the opening 113 at the end of the introduction member 11, and when the ring-shaped seal member 16 has moved to a position sufficiently close to the flange 112, the horizontal position of the high-pressure fluid hose 2 relative to the introduction member 11 is adjusted, and the hose holder 13 is attached to the high-pressure fluid hose 2. At this time, the semicircular truncated cone-shaped parts 13A and 13B are positioned so that the ring-shaped seal member 16, which has been previously fitted around the high-pressure fluid hose 2, is fitted into the ring-shaped groove portion 133 formed on the inner surface of the hose insertion hole 132, and these parts sandwich the high-pressure fluid hose 2 from above and below.

[0042] Next, as shown in FIG. 8(A), the connected flange 12 is brought closer to the flange 112 of the introduction member 11, thereby accommodating the hose holder 13 (semi-frustum-shaped parts 13A, 13B) inside the hose holder accommodating recess 121.

[0043] 8(A), the fixing bolts 14 are tightened to press and connect the connected flange 12 to the flange 112 of the introduction member 11. During this pressing, while maintaining the inclined outer side surface 131 of the hose holder 13 and the inclined inner side surface 122 of the hose holder accommodating recess 121 of the connected flange 12 in contact with each other (i.e., maintaining a state in which the two rub against each other), both parts (semi-circular cone-shaped parts 13A, 13B) constituting the hose holder 13 slide appropriately, and the high-pressure fluid hose 2 can be accurately fixed at a position where the opening 113 of the flange 112 of the introduction member 11 and the hose insertion hole 123 of the connected flange 12 overlap concentrically, as shown in FIG. Also at this time, as also shown in Figure 8 (B), inside the mounting structure 1 for a high-pressure fluid hose, the ring-shaped sealing member 15 is firmly pressed against the hose holder 13, and similarly, the ring-shaped sealing member 16 is firmly pressed against the high-pressure fluid hose 2, thereby maintaining the high airtightness of the mounting structure 1 for a high-pressure fluid hose.

[0044] <Outline of atomization equipment> In the following, an outline of an atomizing device, which is a representative example of industrial equipment in which the "mounting structure for a high-pressure fluid hose" of the present invention can be suitably used, will be described.

[0045] 11 is a diagram showing an example of the overall configuration of an atomizing device 10 configured using a manifold-type injector 5. This atomizing device 10 includes a tundish 4 that discharges the molten metal M poured from a melting furnace 9, a manifold-type injector 5 that injects a fluid onto the molten metal M dropping from the tundish 4, and a chamber 6 where droplets are formed by fluid injection to generate metal powder.

[0046] As shown in Fig. 9, the manifold type injector 5 has a pressure-resistant portion 51 having a substantially cylindrical shape and a plurality of fluid injection nozzles 52 protruding obliquely downward from the bottom side of the pressure-resistant portion 51. A central hole (not shown) penetrating in the axial direction is opened at the center of the pressure-resistant portion 51, and the molten metal M supplied from the discharge nozzle 41N flows down inside the central hole. Inside the pressure-resistant portion 51 of the manifold type injector 5, a high-pressure water supply passage (not shown) is provided around the central hole, terminating at the high-pressure water intake port of the fluid injection nozzle 52 and distributing the high-pressure water supplied from the outside to the intake ports of each fluid injection nozzle 52. The high-pressure water supplied from the outside is supplied to each fluid injection nozzle 52 through this supply passage.

[0047] Here, in the manifold type injector 5, the start end of the above-mentioned supply passage opposite to the end end is provided with a supply port 53 opened on the side surface of the pressure-resistant portion 51. Also, the inner surface of the supply port 53 is generally provided with a female screw portion 531. In the manifold type injector 5 equipped with such a supply port 53, a male screw portion is provided on the tip of the high-pressure fluid hose 2, which is a supply pipe for high-pressure water, and the male screw portion is screwed into the female screw portion 531, so that high-pressure water from the outside can be supplied to the inside of the manifold type injector 5.

[0048] 10, in the atomizing device 10, the manifold type injector 5 is installed inside the casing 3, which is an airtight structure. As shown in FIG. 10, the high-pressure fluid hose 2 is inserted into the outer wall 31 of the casing (airtight structure) 3 and stably attached by the mounting structure 1 for the high-pressure fluid hose, and the end of the high-pressure fluid hose 2 is connected to a supply port 53 opened on the side of the pressure-resistant part 51, so that the high-pressure fluid (e.g., high-pressure water) can be supplied to the fluid injection nozzle 52 via the pressure-resistant part 51 of the manifold type injector 5. [Explanation of symbols]

[0049] 1. High-pressure fluid hose installation structure 11 Introduction materials 112 Flange 111 Hose introduction pipe 113 Aperture 114 Ring-shaped groove 115 Bolt hole 12 Connected flange 121 Hose holder receiving recess 122 Slanted inner surface 123 Hose insertion hole 124 Bolt holes 13 Hose holder 13A, 13B Semi-cone shaped parts 131, 131A, 131B Slanted outer surface 132 Hose fitting hole 133 Ring-shaped groove 14 Fixing bolt 15, 16 Ring-shaped seal member 2 High pressure fluid hose 3. Casing (airtight structure) 31 Exterior Wall 311 Hose inlet 4 Tundish 41a opening 41b bottom 41N Water outlet nozzle 5 Manifold type injector 51 Pressure-resistant section 52 Fluid injection nozzle 53 Support insertion hole 421 Female thread 6 Chambers 61 Outlet 7 Recovery piping 8 Gas exhaust structure 9 Melting furnace (induction furnace) 10 Atomization device

Claims

1. A high-pressure fluid hose installation structure for introducing a high-pressure fluid hose into an airtight structure, comprising: A high pressure fluid hose; An introduction member which is a tubular member having a flange provided around an opening at one end of a cylindrical hose introduction pipe and is joined to an outer wall of the airtight structure; a connected flange, which is a disk-shaped member having a hose insertion hole at its center through which the high-pressure fluid hose is inserted, the connected flange being attached to a side surface of the high-pressure fluid hose and being joined to the flange by a fixing bolt; a hose holder having a hose insertion hole formed at the center of a member having a truncated cone shape and sandwiched between the flange and the connected flange; It is composed of the connected flange has a hose holder accommodating recess on a surface facing the flange, the recess having an inside dimension substantially the same as an outer shape of the hose holder, The hose holder is formed by combining a pair of semi-frustum-shaped parts, each of which has a shape obtained by dividing a truncated cone shape into two equal halves along a plane including a central axis, and each of the semi-frustum-shaped parts is fitted into the hose holder accommodating recess in a state in which it is pressed toward the center of the hose insertion hole by the flange and the connected flange. Mounting structure for high pressure fluid hose.

2. A ring-shaped groove is provided on the inner surface of the hose fitting hole and / or on the surface around the opening of the flange, A ring-shaped seal member made of an elastic material is fitted into the ring-shaped groove.

2. The mounting structure for a high-pressure fluid hose according to claim 1.

3. A low-friction coating layer is formed on the inclined inner side surface of the hose holder accommodating recess and / or the inclined outer side surface of the hose holder.

3. The mounting structure for a high-pressure fluid hose according to claim 1 or 2.

4. An atomizing device having a manifold type injector installed inside an airtight casing, The high-pressure fluid hose is attached to the casing by the attachment structure for a high-pressure fluid hose according to claim 1 or 2. Atomization device.

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