Heat treatment equipment for spinning process of high-pressure fluid storage container

Abstract

A heat treatment equipment for a spinning process of a high-pressure fluid storage container according to the present invention comprises a preheating apparatus, the preheating apparatus comprising: an induction heating unit for heating an end portion of a molding pipe; a first movable location unit comprising a first guide frame forming a first guide path, a first movable frame provided so as to be movable along the first guide path, and a first driving assembly providing driving power; and a second movable location unit comprising a second guide frame forming a second guide path, a second movable frame provided so as to be movable along the second guide path, and a second driving assembly providing driving power.

Description

Heat treatment equipment for spinning process of high-pressure fluid storage vessels

[0001] The present invention relates to a heat treatment facility for a spinning process of a high-pressure fluid storage vessel, and more particularly, to a heat treatment facility for a spinning process of a high-pressure fluid storage vessel that can increase productivity and safety by automating a heat treatment process for the spinning process during the process of forming a high-pressure fluid storage vessel through a forming pipe.

[0002] Fossil fuels, which have been used as the main energy source in the past, are facing concerns about their depletion over time, and due to environmental pollution issues, humanity's interest is gradually shifting to other alternative energy sources.

[0003] Among these alternative energy sources, hydrogen fuel is attracting attention. Hydrogen is not only abundant but also poses no environmental pollution concerns, so its potential is very high.

[0004] In particular, hydrogen fuel cell vehicles are being studied as an alternative to conventional internal combustion engine vehicles, and the results are currently being seen.

[0005] Accordingly, various studies are actively being conducted on storage containers that can be installed in automobiles and charging stations to safely store hydrogen gas filled at high pressure.

[0006] For hydrogen storage containers like this, a method is widely used in which a hollow pipe is prepared inside, and the pipe is rotated and pressurized through a spinning process to form the overall shape.

[0007] And in order to facilitate the spinning process and improve the quality of the final product, a process of heating the end of the pipe is essential.

[0008] However, conventionally, the process of heating the pipe ends was performed manually by workers. This resulted in reduced product productivity, difficulties in achieving uniform heating along the entire circumference of the pipe, and the risk of worker safety accidents.

[0009] Therefore, a method to solve these problems is required.

[0010] The present invention is an invention devised to solve the problems of the above-described prior art, and has the purpose of providing a heat treatment facility for a spinning process of a high-pressure fluid storage vessel that can increase productivity and safety by automating the heat treatment process for the spinning process during the process of forming a high-pressure fluid storage vessel through a forming pipe.

[0011] The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the description below.

[0012] In order to achieve the above object, the heat treatment facility for a spinning process of a high-pressure fluid storage vessel of the present invention comprises a preheating device for preheating an end of a forming pipe for forming a high-pressure fluid storage vessel, wherein the preheating device comprises: an induction heating unit having an insertion hole formed into which the end of the forming pipe is inserted, and heating the end of the forming pipe inserted into the insertion hole by induction heating; a first positioning unit including a first guide frame that forms a first guide path along the front-back direction and is provided in a fixed state; a first moving frame that is connected to the rear of the induction heating unit and is formed to be movable in the front-back direction along the first guide path; and a first driving assembly that provides a driving force for the front-back movement of the first moving frame; a second guide frame that forms a second guide path along the front-back direction at a lower portion forward of the first guide path and is provided in a fixed state; a second moving frame that is connected to the lower portion of the first moving frame and is formed to be movable in the front-back direction along the second guide path; It includes a second position movement unit including a second drive assembly that provides driving force for forward and backward movement of the second movement frame.

[0013] At this time, the first moving frame may be equipped with an auxiliary wheel, and in this case, the first position moving unit may further include a wheel support unit that is provided in the front-back direction on the first guide frame and supports the auxiliary wheel during the process in which the first moving frame moves in the front-back direction.

[0014] Additionally, a stopper portion that limits the movement range of the auxiliary wheel may be provided at the front and rear ends of the wheel support portion.

[0015] And the first drive assembly may include a first cylinder configured to supply or exhaust air, a first moving piston coupled to the first cylinder and having a portion protruding forward and formed to be reciprocally stroked in the forward and backward direction as air is supplied or exhausted to the first cylinder, and a first connecting member provided at a front end of the first moving piston and fixed to the first moving frame.

[0016] In addition, the second drive assembly may include a second cylinder configured to supply or discharge working fluid, a second moving piston coupled to the second cylinder and having a portion protruding rearwardly and formed to be capable of reciprocating in the forward and backward direction as working fluid is supplied or discharged to the second cylinder, and a second connecting member provided at the rear end of the second moving piston and fixed to the second moving frame.

[0017] Meanwhile, the present invention may further include a heating device that heats the end of the forming pipe preheated by the preheating device by radiating a flame.

[0018] At this time, the heating device may include a flame emitting unit formed long in the front-back direction and having a flame emitting nozzle formed at an end thereof for injecting flame, a fuel tank for supplying fuel to the flame emitting unit, and a tilting unit for driving the flame emitting unit to tilt up and down about a rotation axis extended in the left-right direction.

[0019] The heat treatment equipment for a spinning process of a high-pressure fluid storage vessel of the present invention for solving the above-mentioned problem has the advantage of being able to greatly improve productivity by including a preheating device that can automate the preheating process for the end of a forming pipe for forming a high-pressure fluid storage vessel.

[0020] In addition, the present invention has an advantage in that, since an insertion hole into which the end of the forming pipe is inserted is formed in the induction heating unit of the preheating device, the end of the forming pipe can be preheated uniformly throughout, thereby improving processability and obtaining excellent final product quality.

[0021] In addition, the present invention has the advantage of fundamentally preventing safety accidents to workers by automating the entire preheating and heating process.

[0022] The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0023] FIG. 1 is a drawing showing a preheating device among heat treatment facilities for a spinning process of a high-pressure fluid storage vessel according to a first embodiment of the present invention.

[0024] FIG. 2 is a drawing showing each component of a preheating device in an exploded form in a heat treatment facility for a spinning process of a high-pressure fluid storage vessel according to a first embodiment of the present invention.

[0025] FIGS. 3 to 5 are drawings showing a process of preheating a forming pipe through a preheating device of a heat treatment facility for a spinning process of a high-pressure fluid storage vessel according to a first embodiment of the present invention.

[0026] FIG. 6 and FIG. 7 are drawings showing the appearance of a heating device among heat treatment facilities for a spinning process of a high-pressure fluid storage vessel according to the first embodiment of the present invention.

[0027] FIG. 8 is a drawing showing an induction heating unit provided in a preheating device in a heat treatment facility for a spinning process of a high-pressure fluid storage vessel according to a second embodiment of the present invention.

[0028] In this specification, when it is said that a component (or region, layer, portion, etc.) is “on,” “connected to,” or “coupled to” another component, it means that it can be directly disposed / connected / coupled to the other component, or a third component may be disposed between them.

[0029] Identical drawing numbers indicate identical components. Furthermore, in the drawings, the thicknesses, proportions, and dimensions of components are exaggerated for the purpose of effectively illustrating the technical content.

[0030] “And / or” includes any combination of one or more of the associated constructs that can be defined.

[0031] While terms such as "first" and "second" may be used to describe various components, these components should not be limited by these terms. These terms are used solely to distinguish one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a "second component," and similarly, a second component may also be referred to as a "first component." Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0032] Additionally, terms such as "below," "lower," "above," and "upper" are used to describe the relationships between components depicted in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0033] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. Furthermore, terms defined in commonly used dictionaries should be interpreted to have a meaning consistent with their meaning in the relevant technical context, and unless interpreted in an idealized or overly formal sense, they are explicitly defined herein.

[0034] Terms such as "include" or "have" should be understood to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but not to exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0035] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0036] And the heat treatment equipment for the spinning process of a high-pressure fluid storage vessel according to the first embodiment of the present invention may include a preheating device and a heating device. Hereinafter, the preheating device will be described first and the heating device will be described later.

[0037] FIG. 1 is a drawing showing a preheating device (10) among heat treatment facilities for a spinning process of a high-pressure fluid storage vessel according to a first embodiment of the present invention, and FIG. 2 is a drawing showing each component of a preheating device (10) in an exploded manner in a heat treatment facility for a spinning process of a high-pressure fluid storage vessel according to a first embodiment of the present invention.

[0038] As illustrated in FIGS. 1 and 2, the heat treatment equipment for the spinning process of a high-pressure fluid storage vessel according to the first embodiment of the invention may include a preheating device (10) for preheating an end of a forming pipe for forming a high-pressure fluid storage vessel.

[0039] And in this embodiment, the preheating device (10) may include an induction heating unit (100), a first position movement unit (200), and a second position movement unit (300) in detail.

[0040] The induction heating unit (100) has an insertion hole (110) formed inside thereof into which an end of a forming pipe is inserted, and is arranged to heat the end of the forming pipe inserted into the insertion hole (110) by induction heating.

[0041] For this purpose, the induction heating unit (100) may include a coil provided along the periphery of the insertion hole (110), and when current is supplied to the coil, the metal molding pipe may be heated by an electromagnetic induction phenomenon.

[0042] The first position movement unit (200) may include a first guide frame (210), a first movement frame (220), and a first drive assembly (230).

[0043] The first guide frame (210) forms a first guide path along the front-back direction and is provided in a state of being fixed to the ground or another fixed object.

[0044] The first moving frame (220) is connected to the rear of the above-described induction heating unit (100) and is formed to be movable in the forward and backward directions along the first guide path of the first guide frame (210). To this end, the first guide frame (210) may be provided with a first guide rail (211) that guides the first moving frame (220).

[0045] That is, when the first moving frame (220) moves forward and backward along the first guide path, the induction heating unit (100) located in the front can move together.

[0046] At this time, in this embodiment, the first moving frame (220) may be equipped with an auxiliary wheel (221).

[0047] And in this case, the first position movement unit (200) may further include a wheel support unit (212) that is provided in the front-back direction on the first guide frame (210) and supports the auxiliary wheel (221) during the process of the first movement frame (220) moving in the front-back direction.

[0048] In particular, in the present embodiment, a stopper portion (213) that limits the movement range of the auxiliary wheel (221) may be further provided at the front and rear ends of the wheel support portion (212). Accordingly, the present embodiment can prevent the first moving frame (220) from moving out of the first guide path of the first guide frame (210).

[0049] The first drive assembly (230) is provided to provide driving force for forward and backward movement of the first moving frame (220), and in the present embodiment, may be provided on the inside of the first guide frame (210).

[0050] In the present embodiment, the first drive assembly (230) includes a first cylinder (231), a first moving piston (232), and a first connecting member (233).

[0051] The first cylinder (231) is provided so that air can be supplied or discharged therein, and the first moving piston (232) is coupled to the first cylinder (231) and protrudes forward in part.

[0052] And the first moving piston (232) can be reciprocated in the forward and backward direction as air is supplied or discharged to the first cylinder (231).

[0053] That is, in this embodiment, the first drive assembly (230) is exemplified as having a pneumatic actuator form. However, it is to be understood that the drive method of the first drive assembly (230) is not necessarily limited to this embodiment.

[0054] The first connecting member (233) is provided at the front end of the first moving piston (232) and can be fixed to a predetermined position of the first moving frame (220). Therefore, when the first moving piston (232) moves in the forward and backward direction, the first moving frame (220) and the induction heating unit (100) can move together.

[0055] The second position movement unit (300) is positioned lower and forward relative to the first position movement unit (200) and may include a second guide frame (310), a second movement frame (320), and a second drive assembly (330).

[0056] The second guide frame (310) forms a second guide path along the front-back direction and is provided in a state of being fixed to the ground or another fixed object.

[0057] And the second moving frame (220) is connected to the lower part of the first moving frame (220) of the first position moving unit (200) described above, and is formed to be able to move forward and backward along the second guide path of the second guide frame (310). To this end, the second guide frame (310) may be provided with a second guide rail (311) that guides the second moving frame (320).

[0058] That is, when the second moving frame (320) moves forward and backward along the second guide path, the first moving frame (220) and the induction heating unit (100) located at the top can move together.

[0059] The second drive assembly (330) is provided to provide driving force for forward and backward movement of the second moving frame (320), and in the present embodiment, may be provided on the inside of the second guide frame (310).

[0060] In the present embodiment, the second drive assembly (330) includes a second cylinder (331), a second moving piston (332), and a second connecting member (333).

[0061] The second cylinder (331) is provided so that the working fluid is supplied or discharged therein, and the second moving piston (332) is coupled to the second cylinder (331) and a portion thereof protrudes rearward.

[0062] And the second moving piston (332) can be reciprocated in the forward and backward direction as the working fluid is supplied or discharged to the second cylinder (331).

[0063] At this time, the operating fluid may be oil, that is, in this embodiment, the second drive assembly (330) is exemplified as having a hydraulic actuator form. However, it is to be understood that the driving method of the second drive assembly (330) is not necessarily limited to this embodiment.

[0064] The second connecting member (333) is provided at the rear end of the second moving piston (332) and can be fixed to a predetermined position of the second moving frame (320). Therefore, when the second moving piston (332) moves in the forward and backward direction, the second moving frame (320), the first moving frame (220), and the induction heating unit (100) can move together.

[0065] Below, the process of preheating a forming pipe (1) using a preheating device (10) will be described.

[0066] Figures 3 to 5 are drawings showing a process of preheating a forming pipe (1) through a preheating device (10) of a heat treatment facility for a spinning process of a high-pressure fluid storage vessel according to a first embodiment of the present invention.

[0067] First, before preheating the forming pipe (1), the first moving frame (220) is positioned at the rear of the first drive assembly (230), and the second moving frame (320) is positioned at the rear of the second guide frame (310).

[0068] And as shown in Fig. 3, a forming pipe (1) is placed and fixed on the front side of the preheating device (10). At this time, since the means for fixing the forming pipe (1) is obvious to those skilled in the art, the illustration of the means for fixing the forming pipe (1) is omitted in the drawing.

[0069] Thereafter, as shown in FIG. 4, the second drive assembly (330, see FIG. 3) of the second position movement unit (300) is driven to move the second movement frame (320) forward relative to the second guide frame (310).

[0070] In this process, the first moving frame (220) and the induction heating unit (100) connected to the second moving frame (320) move forward together with the second moving frame (320).

[0071] And as shown in FIG. 5, the first drive assembly (230, see FIG. 3) of the first position movement unit (200) is driven to move the first movement frame (220) forward with respect to the first guide frame (210).

[0072] In this process, the induction heating unit (100) fixed to the front of the first moving frame (220) moves forward together with the first moving frame (220), and the end of the forming pipe (1) is inserted into the insertion hole (110, see FIG. 3) of the induction heating unit (100).

[0073] Afterwards, current is supplied to the coil of the induction heating unit (100) to preheat the end of the forming pipe (1).

[0074] In this way, the preheating device (10) of the present invention can move the second moving frame (320) of the second position moving unit (300) and the first moving frame (220) of the first position moving unit (200) forward in steps, thereby greatly increasing the overall stroke distance.

[0075] Accordingly, the present invention can prevent interference from occurring during the forming process by securing a sufficient distance between the preheating device (10) and the fixed position of the forming pipe (1).

[0076] FIG. 6 and FIG. 7 are drawings showing the appearance of a heating device (400) among heat treatment facilities for a spinning process of a high-pressure fluid storage vessel according to the first embodiment of the present invention.

[0077] As shown in FIGS. 6 and 7, the present embodiment may further include a heating device (400) together with the preheating device (10) described above.

[0078] The heating device (400) may be provided adjacent to a location where the forming pipe (1) is fixed, separately from the preheating device (10), so as to heat the end of the forming pipe (1) preheated by the preheating device (10) by radiating a flame thereto.

[0079] And in this embodiment, the heating device (400) may include a flame emitting unit (420), a fuel receiving tank (410), and a tilting unit (430).

[0080] The flamethrower unit (420) is formed to be elongated in the front-back direction, and a flame spray nozzle for spraying flame is formed at one end. In the present embodiment, the flamethrower unit (420) is provided in pairs and is spaced apart from each other in the left-right direction, but the shape and number of the flamethrower units (420) may be modified in various ways.

[0081] The fuel receiving tank (410) is provided to supply fuel to the flamethrower unit (410). In addition, the fuel receiving tank (410) can be connected to the flamethrower unit (420) via a connecting hose (440) to supply fuel to the flamethrower unit (420).

[0082] The tilting unit (430) serves to drive the flamethrower unit (420) to tilt up and down about a rotation axis extending left and right.

[0083] That is, when the heating process is not performed, the tilting unit (430) tilts the flame emitting unit (420) so that the flame emitting nozzle is raised and spaced apart from the forming pipe (1), and when the heating process is performed, the tilting unit (420) tilts so that the flame emitting nozzle is lowered and adjacent to the forming pipe (1).

[0084] To this end, in the present embodiment, the tilting unit (430) may include, in detail, an axis providing unit (432) that provides a rotation axis extending in the left and right direction with respect to the flame emitting unit (420), and a tilting driving unit (431) that provides a driving force for rotating the axis providing unit (432).

[0085] As described above, the present invention enables automation of the preheating process and heating process for the end of a forming pipe (1) for forming a high-pressure fluid storage container, thereby greatly improving productivity and obtaining excellent final product quality.

[0086] Meanwhile, FIG. 8 is a drawing showing an induction heating unit provided in a preheating device in a heat treatment facility for a spinning process of a high-pressure fluid storage vessel according to a second embodiment of the present invention.

[0087] In the case of the second embodiment of the present invention illustrated in FIG. 8, it is formed to have the same overall components as the first embodiment described above, but has the characteristic of further being provided with a first distance sensor (120a) and a second distance sensor (120b) for aligning the center of the insertion hole (110) and the forming pipe (1) inside the induction heating unit (100).

[0088] Specifically, in this embodiment, the first distance sensor (120a) and the second distance sensor (120b) can be placed at positions spaced apart from each other at a preset angle based on the center point of the insertion hole (110).

[0089] In the present embodiment, the first distance sensor (120a) and the second distance sensor (120b) are exemplified as being arranged at right angles to each other based on the center point of the insertion hole (110), but they do not necessarily have to be arranged at right angles.

[0090] Additionally, the first distance sensor (120a) and the second distance sensor (120b) are spaced apart by the same distance based on the center point of the insertion hole (110).

[0091] Accordingly, when a molding pipe (1) is inserted into the insertion hole (110), the first distance sensor (120a) and the second distance sensor (120b) can each measure the distance value to the outer circumference of the molding pipe (1).

[0092] At this time, the first distance sensor (120a) and the second distance sensor (120b) may measure the distance to the target using a laser, and in this case, a laser irradiation hole (111) may be formed in the housing forming the frame of the induction heating unit (100) so that the laser irradiated from the first distance sensor (120a) and the second distance sensor (120b) can smoothly reach the outer surface of the forming pipe (1).

[0093] According to the configuration described above, in the present embodiment, if it is determined that the shortest distance between the first distance sensor (120a) and the outer surface of the forming pipe (1) and the shortest distance between the second distance sensor (120b) and the outer surface of the forming pipe (1) are equal to each other, a preheating process using induction heating can be performed.

[0094] However, if, on the contrary, the shortest distance between the first distance sensor (120a) and the outer surface of the forming pipe (1) and the shortest distance between the second distance sensor (120b) and the outer surface of the forming pipe (1) are determined to be different, the position of the forming pipe (1) can be corrected so that each distance value becomes the same.

[0095] In this way, the present embodiment has the advantage of being able to precisely align the center points of the insertion holes (110) of the forming pipe (1) and the induction heating unit (100), and thus uniformly heat the entire outer surface of the forming pipe (1).

[0096] As described above, preferred embodiments of the present invention have been described. It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms, in addition to the embodiments described above, without departing from the spirit or scope thereof. Therefore, the above-described embodiments should be considered illustrative rather than restrictive, and accordingly, the present invention is not limited to the above description, but may be modified within the scope of the appended claims and their equivalents.

Claims

1. Includes a preheating device for preheating the end of a forming pipe for forming a high-pressure fluid storage vessel. The above preheating device, An induction heating unit in which an insertion hole is formed into which an end of the above-mentioned forming pipe is inserted, and which heats the end of the forming pipe inserted into the insertion hole by induction heating; A first position movement unit including a first guide frame that forms a first guide path along the forward-backward direction and is provided in a fixed state, a first movement frame that is connected to the rear of the induction heating unit and is formed to be able to move in the forward-backward direction along the first guide path, and a first drive assembly that provides a driving force for the forward-backward movement of the first movement frame; and A second position movement unit including a second guide frame that forms a second guide path along the forward and backward direction at the lower front of the first guide path and is provided in a fixed state, a second movement frame that is connected to the lower portion of the first movement frame and is formed to be able to move in the forward and backward direction along the second guide path, and a second drive assembly that provides a driving force for the forward and backward movement of the second movement frame; Including, Heat treatment equipment for spinning process of high pressure fluid storage vessel.

2. In paragraph 1, The above first moving frame is equipped with an auxiliary wheel, The above first position moving unit, The first guide frame further includes a wheel support member that is provided in the forward and backward direction and supports the auxiliary wheel during the forward and backward movement of the first moving frame. Heat treatment equipment for spinning process of high pressure fluid storage vessel.

3. In paragraph 2, The front and rear ends of the wheel support member are provided with stoppers that limit the range of movement of the auxiliary wheel. Heat treatment equipment for spinning process of high pressure fluid storage vessel.

4. In paragraph 1, The above first drive assembly, A first cylinder provided to supply or exhaust air; A first moving piston coupled to the first cylinder, a portion of which protrudes forward, and is formed to be capable of reciprocating in the forward and backward direction as air is supplied or discharged to the first cylinder; and A first connecting member provided at the front end of the first moving piston and fixed to the first moving frame; Including, Heat treatment equipment for spinning process of high pressure fluid storage vessel.

5. In paragraph 1, The above second drive assembly, A second cylinder provided to supply or discharge working fluid; A second moving piston coupled to the second cylinder, a portion of which protrudes rearwardly, and is formed to be capable of reciprocating in the forward and backward direction as the operating fluid is supplied or discharged to the second cylinder; and A second connecting member provided at the rear end of the second moving piston and fixed to the second moving frame; Including, Heat treatment equipment for spinning process of high pressure fluid storage vessel.

6. In paragraph 1, Further comprising a heating device that heats the end of the forming pipe preheated by the preheating device by radiating a flame. Heat treatment equipment for spinning process of high pressure fluid storage vessel.

7. In paragraph 6, The above heating device, A flamethrower unit formed long in the forward-backward direction and having a flame jet nozzle formed at one end for spraying flame; A fuel tank for supplying fuel to the above flamethrower unit; and A tilting unit that drives the above flamethrower unit to tilt up and down about a rotation axis extending in the left and right directions; Including, Heat treatment equipment for spinning process of high pressure fluid storage vessel.

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