• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    CONSTRUCTION OF CONTAINER BOTTLE FROM A PRESSURE CONTAINER. The present invention relates to a pressure vessel for storing liquid or gaseous media. The pressure vessel (1) comprises an internal plastic vessel (2) with at least one neck piece (4) not connected in one piece with that vessel, which is arranged on the neck of the vessel in the area of an opening of the container (8), as well as as a support housing (3), which at least partially surrounds the inner plastic container (2) and the neck piece (4). The neck piece (4) is equipped with means for receiving a connecting instrument (9). The pressure vessel (1) according to the invention is characterized by an insert (5) that forms at least part of the neck of the container, and which forms a sealing seat for the instrument (9) to be inserted into the neck piece (4).
    公开号:BR112012009050B1
    申请号:R112012009050-0
    申请日:2010-09-08
    公开日:2020-08-25
    发明作者:Markus Holbach；Stefan Walbroel
    申请人:Kautex Maschinenbau Gmbh；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a pressure vessel, for the storage of liquid or gaseous media, comprising an internal plastic vessel with at least one neck piece not connected in one piece with that vessel, which is arranged in the neck piece in the area of a container opening, as well as with a support housing, which at least partially surrounds the inner plastic container and the neck piece, the neck piece being equipped with means for reception of a connection instrument.
    [0002] Such a pressure vessel is known, for example, from the patent DE 2 152 123. The pressure vessel described there is constituted by a cylindrical internal container, of stable form, with symmetrical rotation sealed to the gas, in its central area, with two pole pieces or neck pieces coaxially seated outside the bottom of the inner container, and a laminated outer jacket, wrapped in the inner container with capture of the pole parts, endless wires and hardened synthetic material, which forms a lining support for the inner container. The pole pieces or neck pieces are used for the sealed connection of an accessory, for example, a valve.
    [0003] Pressure vessels of this type can be designed, for example, for gas pressures between 30 bar and 700 bar, and internal plastic containers known in and of themselves do not have the necessary pressure stability, since many materials high pressure synthetics start to drain. That is why it is known to equip pressure vessels of the type mentioned at the beginning with a support liner. The backing is normally made up of threads embedded in synthetic resin, which are wrapped around the inner plastic container. The internal plastic container is also commonly referred to as a liner. The pole parts are referred to in the literature as both neck pieces, as well as so-called hub parts, or also as connecting parts. These parts are generally made of metal and are equipped with an internal thread to receive an accessory in the form of a valve or similar. This in the case of pressure vessels, is generally necessary, both for reasons of stability and also for reasons of sealing.
    [0004] A pressure vessel of the type mentioned at the beginning is known, for example, also from EP 0 753 700 B1. This pressure vessel comprises two openings located in the neck area, in which a neck piece is arranged in each one, which closes and seals the opening, with the neck pieces in the final area facing the pressure vessel. they are equipped with a cone-shaped collar, which is wrapped on the inside by the liner, and on the outside by the support liner.
    [0005] In almost all known pressure vessels of the type mentioned at the beginning, the sealing of the inner container or the inner plastic container against the neck piece, or in the area of the neck piece, plays a decisive role, with which the containers fill the gaps. approval requirements with respect to leakage, for example, at a test pressure of 450 bar.
    [0006] In the case of the pressure vessel according to patent DE 2 152 123, it is provided that the wall of the inner vessel always passes in a neck of the molded vessel, directed axially outward and approximately hollow cylindrical, and the pole piece or piece of bottleneck seated, with its inner contour of the outer contour of the inner container in the passage area between the bottom of the container, opening and neck of the adjacent container is executed in such a way that, a flange-shaped part, adjacent to the bottom passes in a neck of the approximately hollow cylindrical molded pole piece, whose inner wall surrounding the neck of the container extends conically directed outwards, in which the deformed container wall is radially directed outwards, through a conically shaped threaded coaxial connection piece corresponding with the neck of the pole piece is compressed close and with closure due to the force. By means of this arrangement it can be assumed that the neck of the container between the neck of the pole piece and the connecting piece with a sealing means in between is secured in such a way that the connection is sufficiently sealed. This arrangement requires a multi-part pole / neck piece and is relatively expensive to assemble.
    [0007] In the case of the pressure vessel according to patent EP 0 753 700 B1, it is provided to seal the liner neck area, on the one hand, with a sealing ring against a shoulder of the neck piece and, on the other hand, by means of of a sealing disc seal between the front surface of the neck section of the liner and the abutment surface that acts in conjunction with the neck piece.
    [0008] This type of seal is particularly critical in the area, where the front surface of the neck of the inner plastic container, with the sealing ring interleaving against the neck piece.
    [0009] In particular, then, if the inner container or the inner plastic container is manufactured by means of extrusion blow molding, such a seal can be problematic.
    [0010] Therefore, the invention has the task of preparing a pressure vessel of the type mentioned at the beginning, in which with relatively simple construction measures an effective seal is obtained.
    [0011] This task is solved by a pressure vessel, for the storage of liquid or gaseous media, comprising an internal plastic vessel with at least one neck piece not connected in one piece with that vessel, which is arranged in the workpiece. neck in the area of an opening of the container, as well as with a support casing, which at least partially surrounds the inner plastic container and the neck piece, the neck piece being equipped with means for receiving of a connection accessory, the pressure container according to the invention being characterized by at least one insert part that forms at least part of the neck of the container and which forms a sealing seat for the accessory to be inserted in the neck piece.
    [0012] In this way, it is possible to seal an accessory directly against the insert, in such a way that costly measures for sealing the inner plastic container against the neck piece or the neck piece against the inner plastic container are not necessary.
    [0013] The insert preferably comprises a cylindrical, glove-shaped part that forms a neck of the inner container with the wall of the inner plastic container.
    [0014] The insertion piece may comprise, for example, a cylindrical, glove-shaped part that dips into the opening of the container and preferably passes through that opening.
    [0015] In the case of a particularly preferred variant of the pressure vessel according to the invention, the cylindrical, glove-shaped part of the insert is intended to immerse itself in the filling volume of the inner plastic vessel, such that the pressure inside the container acts outwardly on the insert, in such a way that a seal of the accessory inside the insert is reinforced conditioned by the internal pressure of the container.
    [0016] Alternatively, it can be provided that the insert comprises a cylindrical, glove-shaped part, which is arranged coaxial to the opening of the container and aligned with that opening.
    [0017] In a variant of the pressure vessel according to the invention, the insert is provided with a collar, which is welded and / or glued to the wall of the internal plastic vessel. In the case of the preferred variant of the pressure vessel, the insert is seated on the outside of the internal plastic vessel. Alternatively, the insert can be placed inside the inner plastic container. The insert can be inserted, for example, during extrusion blow molding of the inner plastic container. Subsequent insertion is also possible in the case of a corresponding dimensioning of the container opening.
    [0018] It is particularly advantageous if the wall of the inner plastic container is tucked away in the area of the opening of the container, and if the collar of the insert is made in addition to this.
    [0019] In order to facilitate centering of the neck piece in relation to the internal plastic container, prior to the placement of the support liner, it can be provided that the insertion piece is connected with the neck piece with closure due to the shape. This also contributes to the stabilization of the compound of the neck piece, internal plastic container, and support lining with eventual transversal application of the accessory.
    [0020] Preferably, the insert is made of injection molded plastic, which can be manufactured with relatively small production tolerances, and therefore ensures a particularly good seal and / or fit. Likewise, the insert can be made as an extrusion blow molded component, which has undergone surface processing. Finally, the insertion part can be made like any plastic part, which has been processed with chip removal.
    [0021] Appropriately, the internal plastic container was obtained by means of extrusion blow molding. In a known manner, during extrusion blow molding, variations in wall thickness depending on manufacture may arise. The combination of an injection molded insert with an extrusion blow molded plastic inner container is particularly advantageous in the extent that an injection molded insert provides an adjustment and sealing surface, which fulfills the necessary stability of dimension.
    [0022] It is particularly suitable if, in the sense of a weldability, the insert is made of a material compatible with the inner plastic container. By welding the insert or the collar of the insert with the inner plastic container wall, a satisfactory seal is obtained in this area.
    [0023] The neck piece is preferably made of metal, this piece can certainly also be made of a relatively impact-resistant and shape-resistant synthetic material, which is suitable for receiving a connection thread from a connection accessory.
    [0024] For the liner or the internal plastic container, all commercially available thermoplastics that can be welded are considered, for example, HDPE, PP, PUR, POM, TPE, polyester etc.
    [0025] The internal plastic container can have, for example, a multi-layer assembly with barrier layers to reduce the permeability for carbons and / or oxygen and / or hydrogen.
    [0026] The connection accessory, for example, in the form of a connection valve, can be sealed, for example, with a cylindrical connection tube, through one or more O-ring seals on the insert or in the cylindrical shaped part insert sleeve.
    [0027] Then the invention will be clarified, with the help of an example of execution represented in the drawings. They are shown: in figure 1 a partial view of a pressure vessel according to the invention, in figure 2 a longitudinal section through the pressure container according to figure 1, without the support shell, which surrounds that container as an exploded view, in figure 3 is an enlarged sectional view of the pressure vessel according to the invention, in the connection area of a steel accessory with a first example of execution, in figure 4 a second example of execution of the pressure vessel according to the invention, whereas the sectional view corresponds to that of figure 3, in figure 5 a third example of execution of the pressure vessel according to the invention, whereas the sectional view corresponds to that seen in figures 3 and 4, in figure 6 a fourth example of the pressure vessel according to the invention, and in figure 7 a fifth example of execution of the pressure vessel according to the invention, in figure 8 a sixth example of execution of the pressure vessel according to the invention.
    [0028] The pressure vessel 1 shown in figure 1 comprises an internal plastic vessel 2 preferably obtained by means of extrusion blow molding, which is surrounded by a support shell 3 of a fiber reinforcement, the reinforcement being of fibers is embedded in a synthetic resin matrix.
    [0029] Although the inner plastic container 2 according to the preferred embodiment has been obtained by means of extrusion blow molding, this container, likewise, can be obtained by means of a thermal molding process or by means of of a sintering process by rotation (Slush-Molding). As materials for the inner plastic container 2 are considered polyethylene, polypropylene, polyester, polyurethane, POM, TPE or the like.
    [0030] The support shell may consist of carbon fibers, aramid yarns, glass yarns or the like. The manufacture of the support shell is preferably carried out by wrapping the inner plastic container 2 with fibers / threads embedded in resin. This process is known in and of itself.
    [0031] For reasons of the simplest representation, the support housing 3 is marked only in some of the figures.
    [0032] As can be seen, in particular, from figure 2, the pressure container 1 according to the invention comprises the plastic container 2 mentioned above, a neck piece 4, which is preferably made of metal, and a insert 5 arranged between the neck part 4 and the inner plastic container 2. The insert part 5 comprises a cylindrical part 6, in the form of a sleeve, which with a threaded hole 7 is arranged coaxially in the neck part 4 and in an opening of the container 8 in the inner plastic container 2.
    [0033] The neck part 4, the insert part 5 and the opening of the container 8 define a neck of the container, which serves to receive a connection accessory 9. For simplification only a part of the connection accessory 9 is shown, or that is, that part, which is received by the threaded hole 7 of the neck part 4, and the cylindrical part 6 of the insertion part 5. For this purpose, they are provided for in the neck part 4, on the one hand, and in the connection accessory 9, on the other hand, respectively, fixing threads 10 complementary to each other.
    [0034] In contrast to compost containers or pressure vessels according to the state of the art, the wall 11 of the internal plastic container 2 is tapered conically in the area of the opening of the container 8 and forms an inverted tube 13 inside it.
    [0035] The insert 5, which is preferably made of thermoplastic synthetic material in the same way, is made in the same way, conical and with a collar 20 made corresponding to the contour of the wall 11 of the internal plastic container 2, in the area of the container opening 8.
    [0036] In the case of the pressure vessel execution examples shown in figures 2 to 6, according to the invention, it is provided that, in the assembled state, the cylindrical part 6 of the insert 5 goes through the opening of the vessel 8, and protrudes into the container 12.
    [0037] The insert 5 and the wall 11 of the inner plastic container 2 are welded together, preferably in the area of the collar 20, such that the separation surface between the insert 5 and the wall 11 of the inner container plastic 2 is gas-sealed accordingly. For this purpose, it is envisaged that, in the sense of a welding capacity, the insert 5 is made of a material compatible with the internal plastic container 2. If the insert 5 is made of a synthetic material, which cannot be welded to the wall 11 of the inner plastic container 2, then this part can be, for example, glued to the wall 11.
    [0038] The neck part 4, the insert part 5 and the opening of the container 8 are centered, in relation to each other, in such a way that a connection accessory 9 or a piece of tube of a fitting accessory 9 sealing. In this case, the cylindrical, glove-shaped part 6 of the insert 5 inside the cover which, limited by that part, forms a sealing seat for a sealing means 14 of the connection accessory 9. In the present case, it is provided an O-ring seal, which in a known manner, is arranged in a groove in the extension of the connection accessory tube 9. In order to improve the sealing effect, it can be provided that the extension of the connection accessory tube 9 has several grooves arranged at intervals from one to the other, with O-ring seals arranged, respectively, in it.
    [0039] In the case of the example of execution of the pressure vessel 1 according to figures 2 to 6, it is envisaged that the cylindrical part 6 of the insert 5 projects into the interior of the vessel 12 and is dimensioned in such a way that the sealing with connection accessory 9 occurs in the area of the cylindrical part 6, which plunges into the interior of the container 12. In this way, a seal is advantageously obtained, which reinforces itself during the internal pressure admission of the pressure container 1 The predominant pressure in the pressure vessel 1 acts radially on the cylindrical part 6 of the insert 5 and thus contributes particularly advantageously to the sealing of the pressure vessel 1.
    [0040] For the assembly of the pressure vessel 1, the insert 5 is glued and / or welded in the area of the wall 11, conically retracted from the internal plastic container 2. Then, the neck piece 4 is seated and centered. In the case of the sectional views shown in figures 3 and 4, respectively, between the insert 5 and the area of the wall 11 retracted conically from the internal plastic container, a layer of adhesive / layer of adhesion promoter with indication is shown, which it is not designated in detail.
    [0041] A fixation of the neck piece 4 occurs through the fiber winding of the support housing 3, which takes place at an acute angle with respect to the longitudinal axis of the pressure vessel 1, such that the projection area of the neck piece 4 is caught by the support housing 3.
    [0042] In order to center the neck part 4 at least partially during assembly, this part can be temporarily fixed with a type of gauge on the insert part 5 and the neck part 4.
    [0043] In the case of the pressure vessel variant shown in figure 4, the collar 20 of the insert 5 is inserted into the recess 21 of the neck part for the purpose of centering with reference to the neck part 4.
    [0044] According to an alternative embodiment of the pressure vessel 1 according to figure 5, it is envisaged that the neck piece 4 is connected with the insert part 5 through a dovetail connector 16 with closure due to the shape . For this, on the surface of the neck part 4, facing the area of the projection 15, grooves in the form of a circular segment with a dovetail profile can be provided, in which they hold corresponding sections of the profile of the insert 5.
    [0045] The insert 5 can be molded either on the neck part 4, or the dovetail connectors 16 are arranged according to the type of a bayonet closure, such that the neck part 4 can be clicked into place with the insert 5 by rotating.
    [0046] Another variant of the pressure vessel 1 is shown in figure 6. According to this variant, the insert 5 is equipped with a collar 17 surrounding the protruding edge of the cylindrical part, which surrounds the projection area 15 of the part of neck 4.
    [0047] Another variant of the pressure vessel according to the invention is shown in figure 7. The cylindrical part 6 of the insert 5 with respect to the surface of the insert 5, facing the neck part 4 is retracted or inverted, and provided with a thread 18, which acts in conjunction with an internal thread 19 of the neck part 4. In the case of this arrangement, the cylindrical part 6 of the insert 5 does not cross the opening of the container 8, on the contrary, this opening is aligned coaxial and aligned with the opening of the container 8.
    [0048] In the case of the pressure vessel variant 1 shown in Figure 8, according to the invention, the cylindrical part 6 of the insert is made continuous in such a way that it completely passes through both the neck part 4 as well as the opening of the container 8, and protrudes into the center of the filling volume of the pressure container 1. In the area of the insert 5 that passes through the neck part 4, this area is provided with a thread 18 in its outer circumference. Connecting accessory 9 is sealed within the insert 5 through two sealing means 14 spaced apart from each other in the axial direction, against the inner wall of the insert 5. For example, two O-ring seals, arranged with interval from one to the other. List of reference numbers 1 pressure vessel 2 internal plastic container 3 support housing 4 piece of neck 5 insert part 6 cylindrical part 7 threaded hole 8 container opening 9 connection accessory 10 fixing thread 11 wall 12 container interior 13 tube 14 sealing means 15 boss area of the neck piece 16 dovetail connector 17 necklace 18 thread 19 internal thread 20 necklace
    权利要求:
    Claims (12)
    [0001]
    Pressure vessel (1) for the storage of liquid or gaseous media, comprising an internal plastic container (2) with at least one neck piece (4) that is not connected in one piece with the container, and which it is arranged on the neck of the container in the area of an opening of the container (8), and with a support housing (3) that surrounds, at least partially, the inner plastic container (2) and the neck piece (4), the neck piece (4) being equipped with means for receiving a connecting instrument (9), and is equipped with at least one insert part (5) that forms at least part of the neck of the container, and which forms a sealing seat for the instrument (9) to be inserted in the neck piece (4), the insert part (5) comprising a cylindrical glove-shaped part (6), characterized the fact that the sleeve-shaped cylindrical part (6) of the insert (5) forms, with the wall of the inner plastic container co (2), a neck of the container inserted inside it, the wall (11) of the inner plastic container (2) being tapered conically in the area of the opening of the container (8), and forms a connection piece inserted reverse inside the container (12).
    [0002]
    Pressure vessel according to claim 1, characterized in that the insert (5) comprises a cylindrical, glove-shaped part (6) that plunges into the opening of the vessel (8) and preferably goes through that opening.
    [0003]
    Pressure vessel according to claim 2, characterized by the fact that the sleeve-shaped cylindrical part (6) of the insert (5) dives into the filling volume of the internal plastic container (2).
    [0004]
    Pressure vessel according to claim 1, characterized in that the insert (5) comprises a cylindrical, glove-shaped part (6), which is arranged coaxial to the opening of the vessel (8) and aligned with that opening.
    [0005]
    Pressure vessel according to one of the claims
    [0006]
    Pressure vessel according to one of claims 1 to 6, characterized in that the wall (11) of the inner plastic container (2) is tapered conically in the area of the opening of the container (8) and the fact that, the collar (20) of the insert (5) is made complementary to this.
    [0007]
    Pressure vessel according to one of claims 1 to 7, characterized in that the neck part is connected with the insert part (5) with closure due to the shape.
    [0008]
    Pressure vessel according to one of claims 1 to 8, characterized in that the insert (5) is made of injection molded plastic.
    [0009]
    Pressure vessel according to one of claims 1 to 9, characterized in that the internal plastic container (2) was obtained by extrusion blow molding.
    [0010]
    Pressure vessel according to one of claims 1 to 10, characterized in that, in the sense of a weldability, the insert (5) consists of a material compatible with the internal plastic container (2).
    [0011]
    Pressure vessel according to one of claims 1 to 11, characterized in that the neck part (4) consists of metal.
    [0012]
    Pressure container according to one of claims 1 to 12, characterized in that the internal plastic container (2) is made of several layers, the container preferably comprising at least one layer of barrier of a heavy or non-permeable material for oxygen and / or hydrogen, and / or carbons.
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    同族专利:
    公开号 | 公开日
    WO2011047752A1|2011-04-28|
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    RU2012120726A|2013-11-27|
    EP2491294B1|2013-07-24|
    JP5667196B2|2015-02-12|
    MX2012004524A|2012-05-22|
    US20120205337A1|2012-08-16|
    PT2491294E|2013-10-29|
    BR112012009050A2|2016-04-19|
    KR101745031B1|2017-06-08|
    US8505762B2|2013-08-13|
    DE102009049948B4|2012-02-02|
    KR20120086294A|2012-08-02|
    DE102009049948A1|2011-05-19|
    EP2491294A1|2012-08-29|
    CN102695906A|2012-09-26|
    RU2528773C2|2014-09-20|
    CN102695906B|2014-11-19|
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    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-01| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-06-02| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-08-25| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/09/2010, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102009049948A|DE102009049948B4|2009-10-19|2009-10-19|pressure vessel|
    DE102009049948.2|2009-10-19|
    PCT/EP2010/005516|WO2011047752A1|2009-10-19|2010-09-08|Vessel neck construction of a pressure vessel|
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