JP2020056468A - Device and method for manufacturing liner for high-pressure tank - Google Patents

Abstract

To provide a device for manufacturing a liner for a high-pressure tank that can preferably join liner component members to each other to obtain a liner for a high-pressure tank, and to provide a manufacturing method.SOLUTION: A device 10 for manufacturing a liner 12 for a high-pressure tank includes: an infrared heating mechanism 30 facing opening end surfaces 22a, 24a of liner component members 22, 24 while having an interval to them and heating the opening end surfaces 22a, 24a; a support body 32 for supporting the infrared heating mechanism 30; and blower 34 for circulating air between the infrared heating mechanism 30 and the opening end surfaces 22a, 24a.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a high-pressure tank liner manufacturing apparatus and method for joining a plurality of resin-made liner components to obtain a high-pressure tank liner.

  For example, as described in Patent Literature 1, it is known that a liner for a high-pressure tank capable of storing a fluid inside is configured by joining liner constituent members.

JP 2013-119924 A

  Since a high-pressure tank liner of this type is filled with a fluid at a high pressure, it is required that the liner constituting members be well joined to each other so as to withstand the pressure of the fluid.

  The present invention has been made in order to solve the above-described problems, and provides a manufacturing apparatus and a manufacturing method of a high-pressure tank liner capable of obtaining a high-pressure tank liner by suitably joining liner components.

  One aspect of the present invention is a manufacturing apparatus for a high-pressure tank liner, which obtains a high-pressure tank liner by joining open end faces respectively provided on a plurality of resin-made liner constituting members to form a high-pressure tank liner. An infrared heating mechanism for heating the opening end face and a blower for flowing air between the infrared heating mechanism and the opening end face.

  Another aspect of the present invention is a method for manufacturing a high-pressure tank liner that obtains a high-pressure tank liner by joining open end faces respectively provided on a plurality of resin-made liner constituting members to obtain a high-pressure tank liner. And an opposing step of opposing the opening end face at an interval, and blast heating for heating the opening end face by the infrared heating mechanism while flowing air between the infrared heating mechanism and the opening end face by a blower. And a step.

  In the present invention, in order to obtain a liner for a high-pressure tank by joining the open end faces of the liner constituent members, an infrared heating mechanism is heated to face the open end face. At this time, even when a large amount of water is absorbed between the resin material constituting the liner component and a large amount of water vapor is generated between the opening end surface and the infrared heating mechanism, the air is circulated by the blower. This can suppress the retention of water vapor. Thereby, since the infrared rays emitted by the infrared heating mechanism can be prevented from being absorbed by the water vapor, the entire opening end face can be efficiently and substantially uniformly heated. As a result, it is possible to obtain a high-pressure tank liner by satisfactorily joining the liner components.

It is a schematic structure figure showing an example of a liner for high pressure tanks obtained by applying a manufacturing device and a manufacturing method of a liner for high pressure tanks concerning a 1st embodiment of the present invention. FIG. 3 is an explanatory view illustrating a positioning step of positioning the opening end faces of the liner components in the method for manufacturing the high-pressure tank liner of FIG. 1. The facing step of facing the infrared heating mechanism to the opening end face of the liner component of FIG. 2 and the blast heating step of heating by the infrared heating mechanism while flowing air between the opening end face and the infrared heating mechanism by a blower. FIG. FIG. 4 is a plan view illustrating a positional relationship between the infrared heating mechanism and the support in FIG. 3 and an opening end surface. FIG. 4 is an explanatory view illustrating a joining step of vibration welding the end faces of the openings heated by the infrared heating mechanism of FIG. 3. It is explanatory drawing explaining the manufacturing apparatus and manufacturing method of the liner for high pressure tanks which concern on 2nd Embodiment of this invention. It is explanatory drawing explaining the manufacturing apparatus and manufacturing method of the liner for high pressure tanks which concern on 3rd Embodiment of this invention. It is explanatory drawing explaining the manufacturing apparatus and manufacturing method of the high-pressure tank liner which concern on 4th Embodiment of this invention. FIG. 9 is a plan view illustrating a positional relationship between the infrared heating mechanism and the support in FIG. 8 and an opening end surface.

  A preferred embodiment of a manufacturing apparatus and a manufacturing method (hereinafter, also simply referred to as a manufacturing apparatus and a manufacturing method) of a liner for a high-pressure tank according to the present invention will be described in detail with reference to the accompanying drawings. In the following drawings, components having the same or similar functions and effects are denoted by the same reference numerals, and repeated description may be omitted.

  By applying the manufacturing apparatus 10 (see FIG. 3) and the manufacturing method according to the first embodiment, the liner for a high-pressure tank (hereinafter, also simply referred to as “liner”) 12 shown in FIG. 1 can be obtained. First, the liner 12 will be briefly described with reference to FIGS.

  The liner 12 is, for example, mounted on a mounting body that is a fuel cell vehicle such as a fuel cell electric vehicle, although not shown, and is suitable for a high-pressure hydrogen tank that stores hydrogen gas to be supplied to a fuel cell system. Used for Therefore, an example in which the liner 12 is used for the above-described high-pressure hydrogen tank will be described below, but the present invention is not particularly limited to this. The liner 12 may be mounted on a mounting body other than the fuel cell vehicle, and may store a fluid other than hydrogen gas.

  As shown in FIG. 1, the liner 12 includes a cylindrical body portion 14, dome-shaped portions 16 provided on both sides in the axial direction of the body portion 14, and protrusions projecting from both axial sides of the dome-shaped portion 16. A portion 18. The diameter of the body portion 14 is substantially constant in the axial direction. The dome-shaped portion 16 is reduced in diameter in an arc shape from the body portion 14 toward the protruding portion 18. The protruding portion 18 has a cylindrical shape with a smaller diameter than the body portion 14, and has an opening 20 for communicating the inside and the outside of the liner 12 inside. In the present embodiment, the liner 12 is configured such that one end and the other end in the axial direction are symmetric with respect to a direction orthogonal to the axial direction.

  As shown in FIG. 2, the liner 12 is formed by joining annular opening end surfaces 22 a and 24 a provided at ends of two liner constituting members 22 and 24 each having at least a part in a cylindrical shape. , A predetermined removal process or the like. Each of the liner constituting members 22 and 24 is made of, for example, a hygroscopic resin material having a hydrogen barrier property such as a nylon resin.

  One of the liner components 22 constitutes one half from the axial center of the liner 12 at one end, and the other liner component 24 constitutes the other half from the axial center of the liner 12 at the other end. That is, the liner constituting members 22 and 24 have substantially the same shape as each other, and have the body constituting portion 26, the dome-shaped portion 16 and the projecting portion 18 described above, respectively. The body constituting part 26 constitutes the body part 14 of the liner 12 by joining the open end faces 22a and 24a.

  From the outer peripheral surface of the body constituting portion 26 in the vicinity of the opening end surfaces 22a and 24a, there are provided flange portions 28 protruding around the entire outer peripheral surface over the entire periphery. The flange portion 28 is used when holding the liner constituting members 22 and 24 and joining the open end surfaces 22a and 24a to each other as described later. For this reason, in the liner 12 after the liner components 22 and 24 have been joined together, the flange portion 28 has been cut off by removal processing (see FIG. 1).

  Next, the manufacturing apparatus 10 according to the first embodiment will be described with reference to FIG. The manufacturing apparatus 10 includes a holding mechanism (not shown), an infrared heating mechanism 30, a support 32, a blower 34, and a vibration welding mechanism 36. The holding mechanism includes, for example, an engaging portion (not shown) that engages with the flange portion 28, and holds the liner constituting members 22, 24 so that the open end faces 22a, 24a thereof face each other with a space therebetween. . The holding mechanism may be constituted by welding jigs 36a and 36b of the vibration welding mechanism 36 described later.

  The infrared heating mechanism 30 has two annular infrared radiating portions 38a and 38b corresponding to the shapes of the opening end surfaces 22a and 24a. The infrared radiation parts 38a and 38b heat the opening end faces 22a and 24a by radiating infrared rays facing the opening end faces 22a and 24a, respectively. In FIG. 4, in order to explain the positional relationship in a plan view when the infrared radiation portions 38a, 38b and the opening end surfaces 22a, 24a face each other, the opening end surface 22a is indicated by a two-dot chain line on the infrared radiation portions 38a, 38b. , 24a.

  As shown in FIG. 4, the inner diameters of the infrared radiation portions 38a and 38b are slightly smaller than the inner diameters of the opening end surfaces 22a and 24a, and the outer diameters of the infrared radiation portions 38a and 38b are smaller than the outer diameters of the opening end surfaces 22a and 24a. It is preferable that the value is set slightly larger. In this case, it becomes possible to irradiate the infrared rays from the infrared radiation portions 38a and 38b to the entire opening end faces 22a and 24a in a satisfactory manner. As the infrared radiating portions 38a and 38b, any known configuration may be adopted as long as it can radiate infrared rays (far infrared rays and near infrared rays) and heat the opening end faces 22a and 24a in a non-contact manner.

  As shown in FIG. 3, the support 32 has two plate members 40a and 40b having dimensions larger than the outer diameters of the open end faces 22a and 24a. The plate members 40a and 40b are stacked such that one main surface side of each plate member overlaps with the other. Further, annular support grooves 42 are formed on the other main surfaces of the plate members 40a and 40b, respectively, and the infrared radiation portions 38a and 38b are disposed inside the support grooves 42, respectively. That is, the support 32 supports the infrared radiation portions 38a and 38b on both sides thereof. Further, a disk-shaped plate-shaped portion 44 is provided inside the support 32 in the radial direction of the infrared radiation portions 38a and 38b (support groove 42).

  The support 32 is interposed between the facing open end faces 22a, 24a of the liner components 22, 24 held by the holding mechanism as described above. Thus, the infrared radiation portions 38a and 38b provided on both sides of the support 32 can be opposed to the opening end surfaces 22a and 24a at intervals. At this time, the plate-shaped portion 44 of the support 32 faces radially inward from the open end surfaces 22a and 24a of the liner constituting members 22 and 24.

  The blower 34 allows air to flow between the infrared heating mechanism 30 and the opening end faces 22a and 24a. Specifically, in the first embodiment, the blower 34 allows air to flow between each of the infrared radiating portions 38a, 38b and the opening end surfaces 22a, 24a facing each other as described above. Then, air is blown from one side of the opposing portions of the outer periphery of the liner constituting members 22 and 24 to the other side (the direction of the arrow in FIG. 3).

  The temperature of the air blown between the infrared heating mechanism 30 and the opening end faces 22a, 24a is, for example, a high-temperature wind that is equal to or higher than 60 ° C. and equal to or lower than the melting point of the resin material that configures the liner components 22 and 24. preferable. In this case, it is possible to prevent the opening end surfaces 22a and 24a, which are the heating units of the infrared heating mechanism 30, from being unevenly removed by the air blown from the blower 34. Further, in order to prevent uneven heating of the heating section, it is preferable to set the blowing speed of the blower 34 to a minimum necessary flow velocity. Further, by installing a thermocouple (not shown) on the inner peripheral side and the outer peripheral side of the opening end faces 22a, 24a, etc., the temperature difference between the inner peripheral side and the outer peripheral side of the opening end faces 22a, 24a is made as small as possible. Is preferred.

  The vibration welding mechanism 36 has a pair of welding jigs 36a and 36b. The welding jig 36 a has an annular shape that can be inserted into the flange portion 28 of the liner component member 22. The welding jig 36b has an annular shape that can be inserted into the flange portion 28 of the liner component 24. The vibration welding mechanism 36 can apply vibration to the opening end surfaces 22a and 24a that are brought into contact with each other via welding jigs 36a and 36b inserted into the flange portion 28, and can vibrate weld them. .

  The manufacturing apparatus 10 according to the first embodiment is basically configured as described above. The manufacturing method according to the first embodiment will be described using a case where the liner 12 is obtained using the manufacturing apparatus 10 as an example.

  In this manufacturing method, first, as shown in FIG. 2, the liner components 22, 24 set on a holding mechanism (not shown) are aligned such that their open end faces 22a, 24a face each other with an interval. Perform a positioning process. At this time, the holding mechanism may make the axial direction of the liner constituting members 22 and 24 extend along the vertical direction, or may make the axial direction and the horizontal direction extend, or may move the axial direction and the vertical direction. Alternatively, the axial direction may be inclined. When the holding mechanism is composed of the welding jigs 36a and 36b, the welding jigs 36a and 36b are inserted into the flange portion 28 as shown by phantom lines in FIG. , 24 may be held.

  Next, as shown in FIG. 3, a facing step of facing the annular infrared heating mechanism 30 and the opening end faces 22a and 24a at an interval is performed. Specifically, in the facing step, the support 32 is interposed between the opening end faces 22a and 24a. Thereby, the infrared radiation portions 38a, 38b are opposed to the opening end surfaces 22a, 24a at intervals, and the plate-shaped portion 44 is opposed radially inward from the opening end surfaces 22a, 24a of the liner constituting members 22, 24. .

  Next, while the air is circulated between the infrared heating mechanism 30 and the opening end faces 22a and 24a by the blower 34, a blowing heating step of heating the opening end faces 22a and 24a by the infrared heating mechanism 30 is performed. More specifically, in the blow heating step, the blower 34 blows air from one side to the other side of the opposing outer peripheral portions of the liner components 22 and 24 in the direction of the arrow in FIG. The infrared heating mechanism 30 radiates infrared rays to heat the opening end faces 22a and 24a, while circulating air between the opening end faces 22a and 24a and the opening end faces 22a and 24a, respectively.

  Thus, after the opening end faces 22a and 24a before joining are preheated to a predetermined temperature, the support 32 is retracted from between the opening end faces 22a and 24a. Then, as shown in FIG. 5, a joining step of bringing the liner components 22 and 24 close to each other and joining the open end faces 22a and 24a is performed.

  In the joining step, the opening end faces 22a and 24a are joined to each other by vibration welding. Specifically, by inserting the welding jigs 36a and 36b into the flange portions 28 of the liner constituent members 22 and 24 from both sides in the axial direction, respectively, the welding jigs 36a and 36b and the flange portions 28 are used. A pressing force is applied to the opening end faces 22a and 24a in a direction approaching each other. In this state, by vibrating one of the welding jigs 36a, 36b, the opening end faces 22a, 24a are softened or melted by frictional heat and welded to each other.

  After welding the opening end surfaces 22a and 24a to each other as described above, the welding jigs 36a and 36b are separated from the flange portion 28 to obtain a joined body in which the liner components 22 and 24 are joined to each other. The liner 12 shown in FIG. 1 can be obtained by subjecting the joined body to removal processing for cutting off the flange portion 28.

  As described above, in the manufacturing apparatus 10 and the manufacturing method according to the first embodiment, when the infrared heating mechanism 30 is opposed to the opening end surfaces 22a and 24a and heated, the infrared rays are absorbed by the resin material forming the liner components 22 and 24. Water vapor may be generated due to evaporation of the water. Even in this case, by allowing air to flow between the opening end surfaces 22a and 24a and the infrared heating mechanism 30 by the blower 34, the retention of water vapor can be suppressed. Thereby, the absorption of the infrared rays emitted from the infrared heating mechanism 30 into the water vapor can be suppressed, so that the entire opening end faces 22a and 24a can be efficiently and substantially uniformly heated by the infrared rays.

  As a result, the liner components 22 and 24 can be satisfactorily joined to each other while avoiding the occurrence of defective fusion parts and the like during the welding of the opening end faces 22a and 24a. As a result, even if high-pressure hydrogen gas is charged, it is possible to obtain a liner 12 having excellent durability that can sufficiently withstand the pressure of the hydrogen gas.

  Further, in the manufacturing apparatus 10 and the manufacturing method according to the first embodiment, a simple configuration in which the blower 34 blows air from one side of the opposing portions of the outer peripheral portions of the liner constituting members 22 and 24 to the other side to provide an infrared ray. Water vapor between the heating mechanism 30 and the opening end faces 22a, 24a can be dispersed. Therefore, the opening end faces 22a and 24a can be satisfactorily joined together while simplifying and reducing the cost of the manufacturing apparatus 10.

  Next, a manufacturing apparatus 50 and a manufacturing method according to a second embodiment will be described with reference to FIG. The manufacturing apparatus 50 according to the second embodiment includes, instead of one blower 34, two blowers 52a and 52b, and blower tubes 54a and 54b connected to these blowers 52a and 52b, respectively. Except for this, the configuration is the same as that of the manufacturing apparatus 10 according to the above-described first embodiment. The blower tube 54a is provided so that the air blown by the blower 52a can be guided to the inside of the liner component member 22 through the opening 20. The blower tube 54b is provided so as to guide the air blown by the blower 52b into the liner component 24 through the opening 20.

  In addition, instead of providing the two blowers 52a and 52b, the manufacturing apparatus 50 includes, for example, only one blower 52a, and branches a blower tube (not shown) connected to the blower 52a. Alternatively, the air may be introduced into each of the liner components 22 and 24 by connecting two blowers to the blower 52a.

  Next, the manufacturing method according to the second embodiment will be described using a case where the liner 12 is obtained using the manufacturing apparatus 50 as an example. In this manufacturing method, the alignment step and the facing step are performed in the same manner as in the manufacturing method according to the first embodiment. Then, while air is passed between the infrared heating mechanism 30 (infrared radiation portions 38a, 38b) and the opening end faces 22a, 24a by the blowers 52a, 52b, the infrared heating mechanism 30 heats the opening end faces 22a, 24a, respectively. A heating step is performed.

  In this blowing and heating step, the blowers 52a and 52b blow the air from the openings 20 into the liner components 22 and 24 through the blowing tubes 54a and 54b, respectively, so that the plate-shaped portions are formed as shown by arrows in FIG. Air flowing radially outward of the liner constituting members 22 and 24 along 44 is circulated between the infrared heating mechanism 30 and the opening end faces 22a and 24a, respectively.

  By performing the blast heating process as described above, the opening end surfaces 22a and 24a before bonding are preheated to a predetermined temperature, and then the bonding process and the like are performed in the same manner as in the manufacturing method according to the first embodiment. Thus, the liner 12 shown in FIG. 1 can be obtained.

  Therefore, even with the manufacturing apparatus 50 and the manufacturing method according to the second embodiment, the stagnation of water vapor between the opening end surfaces 22a and 24a and the infrared heating mechanism 30 can be suppressed. As a result, the entire open end faces 22a and 24a can be efficiently and substantially uniformly heated, and the liner components 22 and 24 can be satisfactorily joined to each other to obtain the liner 12 having excellent durability.

  In the manufacturing apparatus 50 and the manufacturing method according to the second embodiment, the air is efficiently circulated between the infrared heating mechanism 30 and the opening end faces 22a, 24a by blowing air into the liner constituting members 22, 24. Therefore, the retention of water vapor can be more effectively suppressed.

  Next, a manufacturing apparatus 60 and a manufacturing method according to a third embodiment will be described with reference to FIG. The manufacturing apparatus 60 according to the third embodiment is the same as the manufacturing apparatus according to the above-described first embodiment except that the blowers 62a and 62b are provided on both sides of the opposing outer peripheral portions of the liner components 22 and 24. It is configured similarly to 10. That is, the blowers 62a and 62b are disposed to face each other with the liner components 22 and 24 held by the holding mechanism therebetween.

  Next, the manufacturing method according to the third embodiment will be described using a case where the liner 12 is obtained using the manufacturing apparatus 60 as an example. In this manufacturing method, the alignment step and the facing step are performed in the same manner as in the manufacturing method according to the first embodiment. Then, while the air is passed between the infrared heating mechanism 30 (infrared radiation portions 38a, 38b) and the opening end faces 22a, 24a by the blowers 62a, 62b, respectively, the opening end faces 22a, 24a are heated by the infrared heating mechanism 30. A heating step is performed.

  In this blowing heating step, as shown by arrows in FIG. 7, the infrared heating mechanism 30 is blown inward from the opposing portions of the outer peripheral portions of the liner components 22 and 24 by the blowers 62a and 62b, respectively. Air is circulated into the liner components 22, 24 from between the opening end faces 22a, 24a. Then, the air is exhausted to the outside of the liner components 22 and 24 through the opening 20.

  By performing the blast heating process as described above, the opening end surfaces 22a and 24a before bonding are preheated to a predetermined temperature, and then the bonding process and the like are performed in the same manner as in the manufacturing method according to the first embodiment. Thus, the liner 12 shown in FIG. 1 can be obtained.

  Therefore, even with the manufacturing apparatus 60 and the manufacturing method according to the third embodiment, the stagnation of water vapor between the opening end surfaces 22a and 24a and the infrared heating mechanism 30 can be suppressed. As a result, the entire open end faces 22a and 24a can be efficiently and substantially uniformly heated, and the liner components 22 and 24 can be satisfactorily joined to each other to obtain the liner 12 having excellent durability.

  Further, in the manufacturing apparatus 60 and the manufacturing method according to the third embodiment, the infrared heating mechanism 30 and the opening end faces 22a, 24a are blown from both sides of the opposing outer peripheral parts of the liner constituting members 22, 24. Since the air can be efficiently circulated in between, the stagnation of steam can be more effectively suppressed.

  Next, a manufacturing apparatus 70 and a manufacturing method according to a fourth embodiment will be described with reference to FIGS. 8 and 9. The manufacturing apparatus 70 according to the fourth embodiment includes a blower 72 and a blower tube 74 connected to the blower 72, and can blow air into one of the liner components 22 via the blower tube 74 and the opening 20. And the configuration is the same as that of the manufacturing apparatus 10 according to the above-described first embodiment, except that the through-hole 76 is provided in the plate portion 44 of the support 32. The through-hole 76 penetrates the plate-shaped portion 44 in the thickness direction, as shown in FIG. Further, as shown in FIG. 9, the plate-shaped portion 44 is provided with two arc-shaped through holes 76 along a part of the inner periphery of the infrared radiation portions 38a and 38b in plan view. The arrangement, number, shape, and the like of the through holes 76 are not particularly limited.

  Next, the manufacturing method according to the fourth embodiment will be described using a case where the liner 12 is obtained using the manufacturing apparatus 70 as an example. In this manufacturing method, the alignment step and the facing step are performed in the same manner as in the manufacturing method according to the first embodiment. Then, as shown in FIG. 8, while air is circulated between the infrared heating mechanism 30 (the infrared radiation portions 38 a and 38 b) and the opening end faces 22 a and 24 a by the blower 72, the opening end faces 22 a and 24 a are Is performed in a blast heating step of heating the air.

  In this blowing heating step, air is blown from the opening 20 to the inside of one of the liner constituent members 22 through the blower tube 74 by the blower 72, so that the air flows along the plate-shaped portion 44 as shown by the arrow in FIG. The flowing air flows between the infrared radiating portion 38a of the infrared heating mechanism 30 and the opening end face 22a. In addition, the air that has passed through the through hole 76 is allowed to flow between the infrared radiating portion 38b of the infrared heating mechanism 30 and the opening end surface 24a. Further, the air that has flowed into the other liner component 24 through the through hole 76 is exhausted to the outside of the liner component 24 via the opening 20.

  By performing the blast heating process as described above, the opening end surfaces 22a and 24a before bonding are preheated to a predetermined temperature, and then the bonding process and the like are performed in the same manner as in the manufacturing method according to the first embodiment. Thus, the liner 12 shown in FIG. 1 can be obtained.

  Therefore, even with the manufacturing apparatus 70 and the manufacturing method according to the fourth embodiment, the stagnation of water vapor between the opening end surfaces 22a and 24a and the infrared heating mechanism 30 can be suppressed. As a result, the entire open end faces 22a and 24a can be efficiently and substantially uniformly heated, and the liner components 22 and 24 can be satisfactorily joined to each other to obtain the liner 12 having excellent durability.

  Further, in the manufacturing device 70 and the manufacturing method according to the fourth embodiment, the liner component member 22, the blower 72 and the blower tube 74, and the through-hole 76 provided in the plate portion 44 have a simple configuration. The air can be blown into the inside 24 and air can be effectively circulated between each of the opening end faces 22 a and 24 a and the infrared heating mechanism 30. Therefore, the retention of steam can be efficiently suppressed with a simple configuration.

  In the above-described manufacturing apparatuses 10, 50, 60, and 70, the infrared heating mechanism 30 is interposed between the pair of open end faces 22a and 24a facing each other at an interval, and the blowers 34, 52a, 52b, 62a, and 62b are provided. , 72 are provided between one opening end face 22a and the infrared heating mechanism 30 (infrared radiation section 38a), and between the other opening end face 24a and the infrared heating mechanism 30 (infrared radiation section). 38b). In the manufacturing method according to the above-described embodiment, in the facing step, the infrared heating mechanism 30 interposed between the pair of opening end faces 22a and 24a opposed to each other at an interval, and the set of opening end faces 22a and 24a are opposed to each other, and in the blast heating step, between one opening end face 22a of the pair of opening end faces 22a and 24a and the infrared heating mechanism 30 (infrared radiation part 38a), and between the other opening end face 24a. Air is allowed to flow between the infrared heating mechanism 30 (infrared radiation section 38b).

  In this case, it is possible to heat the pair of opening end faces 22a and 24a, which are opposed to each other and aligned, efficiently by a single blast heating step, and then to quickly contact and join. For this reason, it becomes possible to obtain the liner 12 by efficiently and satisfactorily joining the opening end faces 22a and 24a to each other.

  In the manufacturing apparatuses 10, 50, 60, and 70 according to the above-described embodiment, the blowers 34, 52a, 52b, 62a, 62b, and 72 blow air before joining the open end faces 22a and 24a. In the manufacturing method according to the above-described embodiment, the blast heating step is performed before the joining step of joining the opening end faces 22a and 24a. This makes it possible to join the open end faces 22a and 24a to each other in a state where the entire open end faces 22a and 24a are efficiently and substantially uniformly heated, so that the liner 12 having excellent joining quality can be obtained. .

  In the manufacturing apparatuses 10, 50, 60, and 70 according to the above-described embodiment, the open end faces 22a and 24a of the liner constituting members 22 and 24 made of a hygroscopic resin material are joined to each other to store high-pressure hydrogen gas. The liner 12 used for the tank was obtained. Further, in the manufacturing method according to the above-described embodiment, the liner used in the high-pressure hydrogen tank that stores the hydrogen gas by joining the open end faces 22a and 24a of the liner constituting members 22 and 24 made of the hygroscopic resin material. 12 was obtained.

  In the liner 12 used for the high-pressure hydrogen tank for storing hydrogen gas, for example, a resin material having a hydrogen barrier property such as a nylon-based resin is preferably used, but this kind of resin tends to have high hygroscopicity. The above manufacturing apparatuses 10, 50, 60, 70 and the manufacturing method efficiently disperse the water vapor and efficiently remove the entire open end faces 22a, 24a even with the liner constituting members 22, 24 made of a resin material having high hygroscopicity. In addition, since the heating can be performed substantially uniformly, it can be suitably applied to a case where the liner 12 used for the high-pressure hydrogen tank is obtained.

  In the manufacturing apparatuses 10, 50, 60, and 70 according to the above embodiment, the liner 12 used for the high-pressure hydrogen tank mounted on the fuel cell vehicle is obtained. In the manufacturing method according to the above embodiment, the high-pressure tank liner 12 used for the high-pressure hydrogen tank mounted on the fuel cell vehicle is obtained. Since the liner 12 obtained by applying the above-described manufacturing apparatuses 10, 50, 60, and 70 and the manufacturing method is excellent in durability, it can be suitably applied to a high-pressure hydrogen tank mounted on a fuel cell vehicle. .

  The present invention is not particularly limited to the embodiment described above, and various modifications can be made without departing from the gist thereof.

  In the above-described first to fourth embodiments (these are also collectively referred to as embodiments), at least a part of the liner constituting members 22 and 24 is cylindrical, but it is particularly limited to this. Not something. For example, at least a part of the liner components 22 and 24 may have a closed cross-sectional shape other than a cylindrical shape. In the above-described embodiment, each of the opening end faces 22a and 24a and the infrared radiating portions 38a and 38b has an annular shape. However, the present invention is not limited to this. For example, the opening end faces 22a and 24a may have a polygonal shape, a shape in which a plurality of arcs are continuous, an elliptical shape, or the like. The infrared radiation portions 38a and 38b may have any shape as long as they can face the entire opening end surfaces 22a and 24a. In this case, the plate-shaped portion 44 may be formed in a shape corresponding to the shape of the infrared radiation portions 38a, 38b (opening end faces 22a, 24a) instead of the disk shape.

  In the above embodiment, after the opening end faces 22a and 24a are pre-heated by the blast heating step, the joining step of joining the opening end faces 22a and 24a by vibration welding is performed. However, the present invention is not particularly limited to this. Absent.

  For example, the joining may be performed by bringing the open end faces 22a and 24a heated to a temperature at which they can be welded to each other in the blowing heating step in a joining step. In addition, when the preliminary heating is performed in the blast heating step, various welding methods other than the vibration welding may be employed in the subsequent joining step. As an example of a welding method other than the vibration welding, there is a method of simply pressing the opening end surfaces 22a and 24a after performing infrared heating without applying vibration. In the above embodiment, the manufacturing apparatus 10 includes the vibration welding mechanism 36. However, the manufacturing apparatus 10 may not include the vibration welding mechanism 36, and includes a bonding mechanism other than the vibration welding mechanism 36. May be. Even in these cases, the open end faces 22a and 24a can be satisfactorily joined.

  In the above embodiment, as shown in FIGS. 3 and 6 to 8, the support 32 is configured by laminating two plate members 40a and 40b. Further, the infrared heating mechanism 30 includes two infrared radiating portions 38a and 38b. However, it is not particularly limited to these.

  The support 32 may be configured to be able to support the infrared heating mechanism 30 so as to face the opening end surfaces 22a and 24a. For example, the infrared radiating portions 38a and 38b may be provided on both surfaces of a single plate member 40a. May be supported. In addition, in the manufacturing apparatuses 10 and 60 shown in FIGS. 3 and 7, the plate 32 may not be provided on the support 32. The infrared heating mechanism 30 may be composed of one infrared radiating portion 38 a provided to be exposed on both surfaces of the support 32.

  In the above-described embodiment, the support 32 is interposed between the pair of opening end faces 22a and 24a opposed to each other, and these opening end faces 22a and 24a are simultaneously heated by the infrared heating mechanism 30. However, in the manufacturing apparatuses 10, 50, and 60 shown in FIGS. 3, 6, and 7, only one of the open end faces 22a and 24a may be configured to be heatable, or the open end faces 22a and 24a may be configured to be simultaneously heated by the infrared heating mechanism 30.

  The manufacturing apparatuses 60 and 70 shown in FIGS. 7 and 8 are further provided with a suction mechanism (not shown) such as a pump or a compressor for sucking air from at least one of the liner components 22 and 24 through the opening 20. Is also good. Further, the suction mechanism described above may be provided in place of either or both of the blowers 62a and 62b.

  In the manufacturing apparatus 60 shown in FIG. 7, a chamber (not shown) that covers at least the outer periphery near the opening end faces 22a, 24a among the liner components 22, 24 is provided, and at least one of the blowers 62a, 62b is provided in the chamber. By blowing air from one side, air may be blown between the infrared heating mechanism 30 and the opening end faces 22a and 24a.

  In the above embodiment, the liner 12 having the projection 18 and the opening 20 on both sides in the axial direction is obtained. However, the present invention is not particularly limited to this, and the projection 18 is provided only on one end in the axial direction. Also, it is possible to obtain a liner 12 provided with an opening 20. In the above embodiment, the diameter of the body portion 14 of the liner 12 is substantially constant in the axial direction. However, the present invention is not particularly limited to this, and the diameter of the body portion 14 may be different in the axial direction. .

  Further, in the above embodiment, the liner 12 is obtained by joining the two liner components 22 and 24, but the liner 12 may be obtained by joining three or more liner components. In this case, for example, a cylindrical liner component (not shown) having a substantially constant diameter in the axial direction is interposed between the liner components 22 and 24. As described above, even in the case of the cylindrical liner component having a substantially constant diameter in the axial direction, the entirety thereof is efficiently and substantially uniformly heated similarly to the open end faces 22a, 24a of the liner components 22, 24. be able to. Therefore, even with three or more liner components, it is possible to obtain a liner having excellent durability by being satisfactorily joined to each other.

10, 50, 60, 70 Manufacturing apparatus 12 High pressure tank liner 20 Opening 22, 24 Liner component members 22a, 24a Opening end face 30 Infrared heating mechanism 32 Supporters 34, 52a, 52b, 62a, 62b , 72: blower 44: plate-shaped portion 54a, 54b, 74: blower tube 76: through hole

Claims (20)

An apparatus for manufacturing a liner for a high-pressure tank, which obtains a liner for a high-pressure tank by joining open end faces provided on a plurality of resin-made liner constituent members to each other,
An infrared heating mechanism that faces the opening end face at an interval and heats the opening end face,
A blower that allows air to flow between the infrared heating mechanism and the opening end face,
For producing a liner for a high-pressure tank. The apparatus for manufacturing a liner for a high-pressure tank according to claim 1,
A high-pressure tank configured to blow the air between the infrared heating mechanism and the opening end face by blowing air from one side of a portion of the outer peripheral portion of the liner constituting member facing each other to the other side, Liner manufacturing equipment. The apparatus for manufacturing a liner for a high-pressure tank according to claim 1,
Having a plate-shaped portion disposed radially inward of the infrared heating mechanism, further comprising a support for supporting the infrared heating mechanism,
The blower blows the inside of the liner component from an opening provided on the side opposite to the opening end face in the axial direction of the liner component, and the diameter of the liner component along the plate-shaped portion. An apparatus for manufacturing a high-pressure tank liner, wherein the air flowing outward in the direction is circulated between the infrared heating mechanism and the opening end face. The apparatus for manufacturing a liner for a high-pressure tank according to claim 1,
The blower is configured to blow air inward from a portion of the outer peripheral portion of the liner component that opposes each other, thereby allowing the air to flow into the liner component from between the infrared heating mechanism and the opening end surface. A high-pressure tank liner manufacturing apparatus that exhausts air from an opening provided on the side opposite to the opening end face in the axial direction of the liner constituting member. An apparatus for manufacturing a liner for a high-pressure tank according to any one of claims 1 to 4,
The infrared heating mechanism is interposed between a pair of the open end faces facing each other at intervals,
The blower, among the set of open end faces, between the one open end face and the infrared heating mechanism, and, the other through the air between the open end face and the infrared heating mechanism, Equipment for manufacturing liners for high pressure tanks. An apparatus for manufacturing a liner for a high-pressure tank according to claim 3,
The infrared heating mechanism is interposed between a pair of the open end faces facing each other at intervals,
The plate-shaped portion is provided with a through hole in a thickness direction,
The blower blows the air circulating along the plate-shaped portion through the opening by blowing air from the opening of the liner component member having one of the opening end faces to the inside of the set of opening end faces. An apparatus for manufacturing a high-pressure tank liner, which circulates between a mechanism and the one opening end face, and circulates the air passing through the through hole between the infrared heating mechanism and the other opening end face. The apparatus for manufacturing a liner for a high-pressure tank according to any one of claims 1 to 6,
An apparatus for manufacturing a high-pressure tank liner, wherein air is blown by the blower before joining the open end faces. An apparatus for manufacturing a liner for a high-pressure tank according to any one of claims 1 to 7,
An apparatus for manufacturing a high-pressure tank liner, comprising joining the open end faces of the liner constituent member made of a hygroscopic resin material to obtain the high-pressure tank liner used in a high-pressure hydrogen tank for storing hydrogen gas. The apparatus for manufacturing a liner for a high-pressure tank according to claim 8,
An apparatus for manufacturing a high-pressure tank liner, which obtains the high-pressure tank liner used for the high-pressure hydrogen tank mounted on a fuel cell vehicle. An apparatus for manufacturing a liner for a high-pressure tank according to any one of claims 1 to 9,
The apparatus for manufacturing a liner for a high-pressure tank, wherein the infrared heating mechanism has an annular shape capable of facing at least a part of the annular end face of the liner constituent member having a cylindrical shape. A method for manufacturing a liner for a high-pressure tank to obtain a liner for a high-pressure tank by joining the open end faces respectively provided to a plurality of resin-made liner constituting members to each other,
Infrared heating mechanism, a facing step of facing the opening end face at an interval,
A blower heating step of heating the opening end face by the infrared heating mechanism while flowing air between the infrared heating mechanism and the opening end face by a blower,
Of producing a liner for a high-pressure tank having: The method for manufacturing a liner for a high-pressure tank according to claim 11,
In the blast heating step, the air is circulated between the infrared heating mechanism and the opening end face by blowing air from one side of the opposing portion of the outer peripheral portion of the liner component to the other side, Manufacturing method of liner for high pressure tank. The method for manufacturing a liner for a high-pressure tank according to claim 11,
In the facing step, the infrared heating mechanism is opposed to the opening end face, and a plate-shaped portion provided radially inside the infrared heating mechanism among the supports for supporting the infrared heating mechanism is a liner component member. Diametrically inward from the opening end face of
In the blower heating step, the air is blown into the liner component from an opening provided on the side opposite to the opening end face in the axial direction of the liner component, so that the liner component is moved along the plate-like portion. A method of manufacturing a high-pressure tank liner, wherein the air flowing toward the outside of the liner is circulated between the infrared heating mechanism and the opening end face. The method for manufacturing a liner for a high-pressure tank according to claim 11,
In the blast heating step, the inside of the liner component was circulated from between the infrared heating mechanism and the opening end face by blowing inward from the opposing portions of the outer peripheral portion of the liner component. A method for manufacturing a high-pressure tank liner, wherein the air is exhausted from an opening provided on an opposite side to the opening end face in the axial direction of the liner constituting member. The method for producing a liner for a high-pressure tank according to any one of claims 11 to 14,
In the facing step, the infrared heating mechanism interposed between a pair of the open end faces facing each other at an interval, and each of the set of the open end faces face each other,
In the blast heating step, the air is circulated between one of the pair of open end faces and the infrared heating mechanism and between the other open end face and the infrared heat mechanism. Of manufacturing liners for high pressure tanks. The method for producing a liner for a high-pressure tank according to claim 13,
In the facing step, the infrared heating mechanism interposed between a pair of the opening end faces spaced apart from each other, and each of the pair of the opening end faces is opposed to each other, and the one set of the opening end faces is provided. The plate-shaped portion is opposed to each radially inner side of the opening end face,
In the blast heating step, of the set of open end faces, by blowing air from the opening of the liner constituent member having one of the open end faces to the inside, the air flowing along the plate-shaped portion is Flowing between the infrared heating mechanism and the one opening end face, and flowing the air passing through the through-hole provided in the plate-shaped portion between the infrared heating mechanism and the other opening end face, Manufacturing method of liner for high pressure tank. The method for producing a liner for a high-pressure tank according to any one of claims 11 to 16,
The method for manufacturing a liner for a high-pressure tank, wherein the blast heating step is performed before the joining step of joining the open end faces. The method for producing a liner for a high-pressure tank according to any one of claims 11 to 17,
A method for manufacturing a high-pressure tank liner, comprising joining the open end faces of the liner constituent member made of a hygroscopic resin material to obtain the high-pressure tank liner used in a high-pressure hydrogen tank for storing hydrogen gas. The method for manufacturing a liner for a high-pressure tank according to claim 18,
A method for manufacturing a high-pressure tank liner, wherein the high-pressure tank liner is used for the high-pressure hydrogen tank mounted on a fuel cell vehicle. The method for producing a liner for a high-pressure tank according to any one of claims 11 to 19,
In the facing step, a method of manufacturing a high-pressure tank liner, wherein the annular infrared heating mechanism is opposed to the annular opening end face of the liner component member, at least a part of which is cylindrical.

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