DE202021105982U1 - pressure vessel - Google Patents

Abstract

Pressure vessel (1), having
- a container body (3), wherein at an upper end of the container body (3) an end portion (2) is formed integrally with the container body (3) having an opening (O), and
- A fastening structure (9) for a valve (6) formed on the inside of a wall (2.1) surrounding the opening (O) of the end region (2), characterized in that in the wall surrounding the opening (O) of the end region (2). (2.1) at least two outflow openings (SO) are formed, which are in particular arranged opposite one another.

Description

The invention relates to a pressure vessel according to the features of the preamble of claim 1.

Are from the prior art, as in the WO 2021/099542 A1 described, a pressure vessel and a method for producing a pressure vessel known. The pressure vessel comprises a vessel body with a vessel bottom arranged at a lower end and formed in one piece with the vessel body, an end piece arranged at an upper end of the vessel body and formed in one piece with the vessel body and having an opening, an end piece arranged on the outside of a wall surrounding the opening of the end piece Connection geometry, wherein the wall forms a connection with the connection geometry, which is set up to be or to be coupled to a corresponding further connection in a media-tight manner, a fastening structure for a valve formed on the inside of the wall surrounding the opening of the end piece, and a fastening structure in an overpressure opening of the End piece or an overpressure opening of the container body arranged overpressure protection.

The invention is based on the object of specifying a new type of pressure vessel.

The object is achieved according to the invention by a pressure vessel with the features of claim 1.

Advantageous configurations of the invention are the subject matter of the dependent claims.

A pressure vessel has a vessel body. At an upper end of the container body, an end portion is formed integrally with the container body. This end area, which is designed in one piece with the container body, can also be referred to as an end piece. The end area has an opening. The pressure vessel also has a fastening structure for a valve, which is formed on the inside of a wall surrounding the opening of the end region.

According to the invention, two outflow openings are formed in the wall surrounding the opening of the end region, in particular opposite one another.

The pressure vessel, for example a pressurized gas vessel, allows the valve or a valve function to be integrated into the end region and in particular enables the pressure vessel to be coupled directly, media-tight, to a further connection, for example a connection of an application.

In contrast to the prior art, this enables a medium located in the container body, for example gas, for example carbon dioxide, to flow out laterally. The medium flows through the valve and then out through the two outflow openings in the wall and into the application. The solution according to the invention is therefore particularly suitable for applications in which such a lateral outflow is required.

In contrast to other solutions in which the valve protrudes from the container body in order to allow lateral outflow from the valve, the solution according to the invention achieves a smaller overall height since the valve can be or is almost completely arranged in the container body. For example, only a collar-shaped upper section of a valve body of the valve protrudes from the container body, which is in sealing contact with an end face of the wall of the end region.

In particular, the pressure vessel also has the valve, which is arranged in the end region, in particular is screwed into it. The valve is designed, for example, as a check valve.

A valve body of the valve has, in particular, exactly one passage opening, which is formed radially from an inside toward an outside of the valve body. This enables the valve body to be manufactured easily. In addition, the valve body is particularly stable, since it has only a single passage opening and thus additional weakening caused by several passage openings is avoided. The valve body can therefore be formed, for example, with less material expenditure and/or from another, in particular less expensive, material, for example from aluminum or brass.

In other embodiments, the valve can have a plurality of such passage openings, which are each formed radially from the inside toward the outside of the valve body.

The passage opening or the respective passage opening in the valve body is positioned in particular at the level of the outflow openings in the end area. This ensures short flow paths between the passage opening in the valve and the two outflow openings.

Alternatively, the passage opening or the respective passage opening can also be adjusted in height offset to the height of the outflow openings in the end area.

For example, the passage opening opens into a distributor groove formed circumferentially on the outside of the valve body and/or an inner opening edge of the respective outflow opening is arranged on a groove bottom of a distributor groove formed circumferentially on the inside of the wall of the end region. This ensures a uniform distribution of the medium flowing out of one passage opening in the valve body to the two outflow openings in the wall of the end region and thus a uniform outflow of the medium from both outflow openings.

If the through-opening or the respective through-opening is offset in height to the height of the outflow openings in the end region, the distributor groove, for example, is designed to be correspondingly wide, or a connecting channel is provided between the through-opening or the respective through-opening and the distributor groove, or there is another fluidic connection between the through-opening or the respective through-opening and the distributor groove are provided.

In particular, the fastening structure has an internal thread arranged on the inside of the wall. In one possible embodiment, the valve body has an external thread that corresponds to the internal thread of the fastening structure. When screwed into the internal thread, in particular completely, d. H. up to a predetermined end position, screwed-in state, the valve body is arranged in the area of the opening of the end area, protrudes from the opening into the end area, lies against the end area in a media-tight manner and has a receiving opening. A sealing tappet is arranged in the receiving opening, which in a closed position closes the passage opening in a media-tight manner, i. H. either directly or indirectly closed media-tight, and releases the passage opening in an open position. The valve has in particular a support element which is connected to the valve body or is formed on the valve body and a spring element which is arranged inside the valve body and which is supported at a first end on the support element and at an opposite second end on the sealing tappet, with the spring element being displaced during a movement of the sealing tappet is stretched from the closed position into the open position, in particular is compressed.

Such an embodiment of the valve with the valve body and the other valve components, which are held inside or on the valve body, allows a particularly simple assembly of the valve as a whole in the end area. Since, in contrast to solutions with a separate valve known from the prior art, the valve does not have a holding function, the valve body can be dimensioned significantly weaker in terms of its material thickness and quantity of material.

For example, at least one seal, for example in the form of an O-ring or a shaft seal, is arranged between the valve body and the end area. In particular, such a seal is arranged between the valve body and the end area above and below the passage opening. The seal above the through-opening prevents the medium from flowing out of the opening in the end area upwards out of the container body. The seal below the passage opening prevents the medium from flowing between the wall of the end region and the valve body and thus past the valve in the direction of the outflow openings in the wall of the end region. In one possible embodiment, two seals, for example in the form of an O-ring or a shaft seal, are also arranged between the valve body and the sealing tappet. These seals are available very reliably and inexpensively. A seal is arranged above the passage opening in order to prevent the medium from flowing out of the receiving opening upwards, so that it is ensured that the medium flows out laterally exclusively via the two lateral outflow openings. The other seal is arranged below the passage opening. With it, the fluidic connection between the passage opening and the area of the receiving opening that is fluidically connected to the interior of the container body is prevented in the closed position of the sealing plunger and released in the open position of the sealing plunger.

For example, the passage opening is fluidically connected to the receiving opening and the sealing plunger in the closed position closes the receiving opening and thus also the passage opening in a media-tight manner and in the open position releases the receiving opening at least in sections and thereby also releases the passage opening. In this embodiment, the through-opening is thus closed media-tight in particular indirectly by means of the sealing plunger in the closed position, in that the receiving opening and thereby the through-opening fluidically connected thereto are closed in a media-tight manner.

In a possible embodiment, the support element and/or the valve body has a inflow opening. This allows a medium located inside the container body to flow into the receiving opening in the valve body, at least when the sealing tappet is in the open position, and thus allows the medium to flow in the direction of the passage opening, at least when the valve tappet is in the open position.

In one possible embodiment, the valve body has a pressure equalization opening. This enables the valve tappet to be moved into the open position and back into the open position, particularly when the support element is closed, with pressure equalization taking place between an area of the receiving opening below the sealing tappet and the interior of the container body.

In particular, the container body has a container bottom which is arranged at a lower end and is formed in one piece with the container body. In particular, due to the one-piece design of the entire container body, including the container base and end area, a particularly high level of pressure stability is achieved with little effort, in particular with little material expenditure, since connections, for example weld seams, which represent weak points, are avoided.

The container body has, in particular, a connection geometry arranged on the outside of a wall surrounding the opening of the end region, for example an external thread, a latching arrangement or a quick-release fastener, with the wall forming a connection with the connection geometry, which is set up to be coupled with a corresponding further connection in a media-tight manner to become or to be. Due to the design of the connection geometry, for example a so-called ACME thread, at the end area, the valve can be omitted as a separate component. Compared to solutions with a separate valve known from the prior art, this means that a number of individual parts can be reduced, and a main body of the valve made of brass, for example, can be omitted or at least be dimensioned significantly weaker in terms of its material thickness and quantity of material. Thus, a material and cost can be significantly reduced. For example, a measurement saving of up to 200 g per pressure vessel with valve can be achieved.

Furthermore, due to the design of the connection geometry at the end area and thus at the pressure vessel, a reliable and improved media tightness can be achieved, which results in particular from a reduction in the number of joints and their sealing compared to the solutions known from the prior art with a separate valve. Furthermore, assembly costs are reduced.

A seal provided in the prior art for sealing the valve from the pressure vessel, in particular a so-called O-ring, can also be omitted, which also results in a reduction in the number of individual parts and a reduction in costs.

Due to the integration of the valve in the pressure vessel and the formation of the external thread in the end area, the valve no longer has to be made of brass. For example, both the pressure vessel, i. H. the container body with container base and the end area, as well as the components of the valve are made of aluminum. On the one hand, this leads to the advantage that particularly low costs can be achieved and, on the other hand, at least all components responsible for the media tightness are made of the same material with the same thermal expansion coefficient, and thus different expansions and resulting leaks with temperature changes are avoided. Simple and complete recycling is also possible in the design of the components of the valve and the pressure vessel. Alternatively, the valve is made of brass or another material, for example.

In the method for producing a pressure vessel described above, the vessel body and the end area are produced together from a material blank in a roll-forming process. Furthermore, the fastening structure for the valve and in particular also the connection geometry are produced by means of machining and/or forming, in particular during the roll forming process, and/or the application of material and/or other suitable processes in the area of the end area. Furthermore, the two outflow openings are formed in the wall of the end area. The valve is then attached to the end area in the area of the opening. The pressure vessel can be produced particularly easily and with high quality using the roll forming process. The production of the fastening structure and the fastening of the valve can also be implemented particularly easily, reliably and at low cost.

The pressure vessel can, for example, additionally have an overpressure safety device. For example, this overpressure protection is arranged in the valve. Alternatively, this overpressure protection is arranged, for example, in an overpressure opening formed in the bottom of the container. This allows for an appropriate design of the container bottom, for example with a corresponding end deepening, an integrated arrangement of the overpressure protection, without it protruding over an outer edge of the pressure vessel. This increases protection against mechanical damage to the overpressure protection. Furthermore, a required installation space for accommodating the pressure vessel in an application can be reduced and assembly of the pressure vessel in the installation space is simplified.

The overpressure protection includes, for example, a bursting disk, which is secured, for example, with a screw including a vent bolt. Such a design of the overpressure protection is particularly simple, inexpensive and reliable. For example, the overpressure protection is designed for a triggering pressure of 250 bar. However, any other triggering pressure values are also possible.

For example, the bursting disk is fluidically coupled to an interior of the pressure vessel and is held, for example, at the edge by the screw, inside which a vent bolt is formed or arranged. If the triggering pressure is exceeded, the bursting disk is mechanically destroyed and releases a fluidic connection between the vent bolt and the interior of the pressure vessel, so that fluid, for example gas, located within the pressure vessel can escape.

For example, the overpressure opening includes an internal thread that corresponds to an external thread of the screw and into which the screw is screwed. This enables the overpressure protection to be attached in a particularly simple and secure manner. For example, the internal thread is produced by machining. However, the internal thread can also be produced in a forming process, for example a roll forming process, during the shaping of the container bottom. Alternatively, other methods for producing the internal thread are also possible.

In one possible embodiment of the method for manufacturing the pressure vessel, the overpressure opening in the vessel bottom is produced by means of machining and/or forming, in particular during the roll forming process, and/or the application of material and/or other suitable methods, and the overpressure safety device is then attached to the overpressure opening. The creation of the overpressure opening and the attachment of the overpressure protection are particularly simple, reliable and can be implemented at low cost.

Exemplary embodiments of the invention are explained in more detail below with reference to drawings.

• 1 schematisch eine Längsschnittdarstellung einer Ausführungsform eines Druckbehälters,
• 2 schematisch die Ausführungsform des Druckbehälters gemäß 1 in einer Draufsicht von oben,
• 3 schematisch eine Detailansicht des Details III in 1,
• 4 schematisch eine Längsschnittdarstellung eines Behälterkörpers der Ausführungsform des Druckbehälters gemäß 1,
• 5 schematisch eine Detailansicht des Details V in 4,
• 6 schematisch eine Längsschnittdarstellung eines Ventils der Ausführungsform des Druckbehälters gemäß 1, und
• 7 schematisch eine Längsschnittdarstellung eines Ventils einer weiteren Ausführungsform des Druckbehälters.

Show in it:

• 1 schematically a longitudinal sectional view of an embodiment of a pressure vessel,
• 2 schematically the embodiment of the pressure vessel according to 1 in a top view,
• 3 schematically a detailed view of detail III in 1 ,
• 4 1 schematically shows a longitudinal sectional view of a container body according to the embodiment of the pressure container 1 ,
• 5 schematically a detailed view of the detail V in 4 ,
• 6 schematically shows a longitudinal sectional view of a valve according to the embodiment of the pressure vessel 1 , and
• 7 schematically shows a longitudinal sectional view of a valve of a further embodiment of the pressure vessel.

Corresponding parts are provided with the same reference symbols in all figures.

In 1 a longitudinal sectional view of an embodiment of a pressure vessel 1 is shown. 2 shows the pressure vessel 1 in a plan view from above. 3 shows a detailed view of detail III in 1 . 4 shows a longitudinal sectional view of a container body 3 of the pressure container 1. 5 shows a detailed view of detail V in 4 and 6 shows a longitudinal sectional view of a valve 6 of the pressure vessel 1.

The pressure vessel 1 is, for example, a compressed gas vessel and is designed to hold a gas under high pressure. For example, the pressure vessel 1 is a so-called gas cartridge.

The pressure vessel 1 has the vessel body 3 with a vessel bottom 4 which is arranged at a lower end and is in particular formed in one piece with the vessel body 3 .

At an upper end, and thus opposite the container bottom 4 , the container body 3 has an end region 2 which is in particular formed in one piece with the container body 3 . The end region 2 has an opening O.

The container bottom 4, the container body 3 and the end portion 2 are in particular homo Genes, one-piece component formed without joints and produced together in a forming process, such as a roll forming process, from a material blank, such as an aluminum blank or another material.

For a medium-tight coupling of the pressure vessel 1 with an application, it has, for example, a connection geometry 5 introduced on the outside of a wall 2.1 surrounding the opening O of the end region 2, which is designed, for example, as an external thread, for example as a so-called ACME thread. The wall 2.1, in particular having the connection geometry 5, forms a connection which is set up to be or to be coupled in a media-tight manner to a corresponding further connection of the corresponding application. The connection geometry 5 is created, for example, during the shaping of the end region 2 in the shaping process and/or by means of machining after the shaping and/or by applying material and/or other suitable processes.

The pressure vessel 1 also advantageously has the valve 6, which is designed in particular as a non-return valve. This valve 6 is arranged, at least essentially, within the end region 2 . For this purpose, the pressure vessel 1 has a fastening structure 9 for the valve 6 formed on the inside of the wall 2.1 surrounding the opening O of the end region 2. The fastening structure 9 has in particular an internal thread arranged on the inside of the wall 2.1. A valve body 6.7 has an external thread that corresponds to the internal thread of the fastening structure 9.

The valve 6 comprises the valve body 6.7, which is arranged at the opening O of the end region 2 with an upper collar-shaped valve body section 6.1. Starting from the opening O and from this collar-shaped valve body section 6.1, the valve body 6.7 protrudes into the end region 2.

The valve body 6.7 rests against the end area 2 in a media-tight manner. For this purpose, a diameter of the upper collar-shaped valve body section 6.1 of the valve body 6.7 is larger than an opening diameter of the opening O of the end region 2, as a result of which a contact surface facing the end region 2 is formed on the upper collar-shaped valve body section 6.1, which bears against an end face of the end region 2. In addition, between the valve body 6.7 and the end area 2 there is a seal 6.2, in particular designed as an O-ring or shaft seal. This is in particular in a transition area between the upper collar-shaped valve body section 6.1 and the section of the valve body 6.7 that connects underneath and protrudes into the end area 2 on the valve body 6.7 and in an opening edge area on the inside on the wall 2.1 of the end area 2 surrounding the opening O of the end area 2 at. In the examples shown, it is arranged in a receiving groove of the valve body 6.7. The valve body 6.7 is formed, for example, from aluminum or brass or another material.

The valve body 6.7 has a receiving opening AO running in the axial direction of the valve body 6.7 and penetrating it. This receiving opening AO has an upper receiving section AOO and an adjoining lower receiving section AOU, with the upper receiving section AOO having a smaller diameter than the lower receiving section AOU. The valve 6 also has a sealing tappet 6.3. The sealing plunger 6.3, which in the 1 until 3 and 6 and also in 7 is shown in a closed position in a further embodiment of the valve 6, penetrates the upper receiving section AOO of the receiving opening AO and closes it in a media-tight manner.

In an open position, not shown in detail, the sealing tappet 6.3 releases the upper receiving section AOO of the receiving opening AO at least in sections. More precisely, in the open position, the sealing tappet 6.3 releases a lower passage section of the upper receiving section AOO of the receiving opening AO. To this valve function, i. H. To enable media-tight sealing in the closed position and release in the open position, a seal 6.4, in particular designed as an O-ring or shaft seal, is arranged between the sealing tappet 6.3 and the valve body 6.7.

In the example shown according to the 1 until 3 and 6, the sealing ram 6.3 has an upper ram section 6.3.1 arranged in the upper receiving section AOO of the receiving opening AO and a subsequent lower ram section 6.3.2, with a diameter of the lower ram section 6.3.2 being greater than a diameter of the upper ram section 6.3.1 and also larger than a diameter of the upper accommodating portion AOO of the accommodating hole AO. As a result, the sealing tappet 6.3 lies in the closed position with an upper side of the lower tappet section 6.3.2 radially projecting beyond the upper tappet section 6.3.1 on an upper side of the lower receiving section projecting radially beyond the upper receiving section AOO of the receiving opening AO AOU to the receiving opening AO, with the seal 6.4 being arranged in between. It is arranged, for example, in a receiving groove of the lower ram section 6.3.2. The sealing plunger 6.3 is made of aluminum or brass or another material, for example.

In the example shown, the sealing tappet 6.3 also has a diameter reduction 6.3.3 in certain areas in the upper tappet section 6.3.1, in particular in the form of a circumferential groove. This is designed on the sealing tappet 6.3 in such a way that a lower edge area of the diameter reduction 6.3.3 in the open position, i. H. is positioned below the upper side of the lower receiving section AOU of the receiving opening AO when the sealing plunger 6.3 is moved downwards in the axial direction.

Exactly one passage opening DO is formed in the valve body 6.7, which runs radially outwards from the upper receiving section AOO of the receiving opening AO. The reduction in diameter 6.3.3 is formed on the sealing tappet 6.3 in such a way that an upper edge area of the reduction in diameter 6.3.3 in the open position, i. H. is positioned above a lower opening edge of the through-opening DO when the sealing plunger 6.3 is moving downwards in the axial direction. As a result, moving the sealing tappet 6.3 into the open position creates a fluidic connection between the lower receiving section AOU of the receiving opening AO, which is fluidically connected to a container interior of the container body 3, via the diameter reduction 6.3.3 in the sealing tappet 6.3 to the passage opening DO in the valve body 6.7 produced. In the example shown, the passage opening DO opens into a circumferential distributor groove VN on an outside of the valve body 6.7.

In the end region 2 of the container body 3, two outflow openings SO are formed opposite one another, which each extend from an outside to an inside of the wall 2.1. These outflow openings SO are positioned at the level of the passage opening DO in the valve body 6.7. This relates to the valve 6 arranged in the end region 2 in a predetermined end position, i. H. on the valve 6 properly connected to the container body 3.

By moving the sealing tappet 6.3 into the open position, a fluidic connection is established between the lower receiving section AOU of the receiving opening AO, which is fluidically connected to the container interior of the container body 3, via the diameter reduction 6.3.3 in the sealing tappet 6.3, the passage opening DO in the valve body 6.7 , the circumferential distributor groove VN in the valve body 6.7 and the two outflow openings SO in the end region 2 to an external environment of the pressure vessel 1, in particular for the outflow of the medium located in the interior of the vessel, in particular the gas, in particular into an application connected to the pressure vessel 1. The circumferential distribution groove VN ensures that the medium flowing out of the one through-opening DO is distributed, in particular evenly, to the two outflow openings SO.

In other exemplary embodiments, the circumferential distributor groove VN is formed, for example, in the wall 2.1 of the end area 2, i. H. on an inside of the wall 2.1. It is then designed to run around the end area 2 . An inside entrance of the respective outflow opening SO is then positioned on a groove bottom of the circumferential distributor groove VN and the distributor groove VN is positioned at the level of the through-opening DO in the valve body 6.7. This also relates to the valve 6 arranged in the end region 2 in a predetermined end position, i. H. on the valve 6 properly connected to the container body 3.

In further exemplary embodiments, it can be provided, for example, that such a distributor groove VN is formed both in the valve body 6.7 and in the end region 2. Then the distributor groove VN is positioned in the end area 2 at the level of the distributor groove VN in the valve body 6.7. This also relates to the valve 6 arranged in the end region 2 in a predetermined end position, i. H. on the valve 6 properly connected to the container body 3.

In order to prevent outflow past the valve 6 on the outside in the direction of the two outflow openings SO, a seal 6.8, designed in particular as an O-ring or shaft seal, is provided below the passage opening DO and the two outflow openings SO between the valve body 6.7 and the end region 2. In the example shown, it is arranged in a receiving groove in the valve body 6.7 and is thus in sealing contact with the valve body 6.7 and also with the end region 2.

To seal the valve 6 in the axial direction outwards above the passage opening DO, in order to prevent the medium from flowing out upwards through the receiving opening AO, a seal 6.9 is arranged above the passage opening DO, which is designed, for example, as an O-ring or shaft seal . In the example shown, it is arranged in a receiving groove in the valve body 6.7 and is thus in sealing contact with the valve body 6.7 and also with the sealing tappet 6.3.

The valve 6 also includes a spring element 6.5, for example a helical spring, which presses the sealing tappet 6.3 in the axial direction against the valve body 6.7, with the spring element 6.5 being compressed in the example shown when the sealing tappet 6.3 moves from the closed position into the open position. This movement of the sealing plunger 6.3 takes place, for example, when the pressure vessel 1 is coupled to the application, with an actuating element being provided on the connection of the corresponding application, which counteracts the sealing plunger 6.3 when it is fastened to the connection geometry 5, for example when the external thread is screwed into the connection the spring force pushes in the direction of the container bottom 4 and thus establishes a fluidic connection between an interior of the pressure container 1 and the application.

To support the spring element 6.5 at an end remote from the sealing tappet 6.3, the valve 6 has a support element 6.6, which is connected to the valve body 6.7. For example, the support element 6.6 includes an external thread and the valve body 6.7 includes an internal thread corresponding thereto, into which the support element 6.6 is screwed.

Inside the valve body 6.7, more precisely in the lower receiving section AOU of the receiving opening AO, the spring element 6.5 is arranged, which is supported with its first end on the support element 6.6 and with its opposite second end on the sealing plunger 6.3.

Due to the design of the valve 6, it can be screwed into the end area 2 as a whole.

In order to allow the medium to flow into the valve 6, the support element 6.6 has an inflow opening EO running through the support element 6.6, so that the medium can flow through the support element 6.6 into the lower receiving section AOU of the receiving opening AO and from there when the Position of the valve 6 in the manner described can flow through the valve 6 and the two outflow openings SO.

A stop disk 7 is arranged on the outside of the end region 2 below the connection geometry 5 or is formed in one piece with the container body 3 . This stop disk 7 forms, for example, an end stop for coupling the pressure vessel 1 to the application, for example by screwing the pressure vessel 1 into the application. In order to prevent an outflow past the end area 2 on the outside, a seal 8 , in particular designed as an O-ring or shaft seal, is provided above the stop disk 7 . In the example shown, it is arranged in a receiving groove in the end area 2 above the stop disk 7 and is thus in sealing contact with the end area 2 . When the pressure vessel 1 is coupled to the application, it is also in sealing contact with a corresponding contact area of the application.

7 shows a longitudinal sectional view of a valve 6 of a further embodiment of the pressure vessel 1. The vessel body 3 of the pressure vessel 1, not shown here, in particular its end region 2, is for example identical in design to that in FIGS 1 until 5 shown and described above, i.e. the difference of this embodiment of the pressure vessel 1 consists in a different embodiment of the valve 6.

In the following, therefore, this other embodiment of the valve 6 according to 7 described. The valve 6 is also designed here in particular as a non-return valve. This embodiment of the valve 6 is also arranged at least essentially within the end region 2 in the finished state of the pressure vessel 1 . For this purpose, the pressure vessel 1 has the fastening structure 9 for the valve 6 formed on the inside of the wall 2.1 surrounding the opening O of the end region 2. The fastening structure 9 has in particular the internal thread arranged on the inside of the wall 2.1. The valve body 6.7 has the external thread that corresponds to the internal thread of the fastening structure 9 .

The valve 6 comprises the valve body 6.7, which is arranged with the upper collar-shaped valve body section 6.1 at the opening O of the end region 2. Starting from the opening O and from this collar-shaped valve body section 6.1, the valve body 6.7 protrudes into the end region 2.

The valve body 6.7 rests against the end area 2 in a media-tight manner. For this purpose, the diameter of the collar-shaped valve body section 6.1 of the valve body 6.7 is larger than the opening diameter of the opening O of the end region 2, as a result of which the contact surface facing the end region 2 is formed on the collar-shaped valve body section 6.1, which bears against the end face of the end region 2. In addition, between the valve body 6.7 and the end region 2 is arranged the seal 6.2, which is designed in particular as an O-ring or shaft seal. This is particularly in the transition area between the collar-shaped valve body section 6.1 and the adjoining section of the valve body 6.7 projecting into the end area 2 and on the valve body 6.7 and in an opening edge area on the inside of the Opening O of the end portion 2 surrounding wall 2.1 of the end portion 2 at. The valve body 6.7 is formed, for example, from aluminum or brass or another material.

The valve body 6.7 has the receiving opening AO running in the axial direction of the valve body 6.7 and penetrating it. The valve 6 also has the sealing tappet 6.3, which closes the receiving opening AO in the valve body 6.7 in a media-tight manner. This receiving opening AO has the upper receiving section AOO and the lower receiving section AOU, with the upper receiving section AOO having a smaller diameter than the lower receiving section AOU. The sealing plunger 6.3, which in 7 shown in the closed position penetrates the upper receiving portion AOO of the receiving opening AO.

The valve 6 also includes the spring element 6.5, for example a helical spring, which presses the sealing tappet 6.3 in the axial direction against the valve body 6.7, with the spring element 6.5 being compressed in the example shown when the sealing tappet 6.3 moves from the closed position into the open position. This movement of the sealing plunger 6.3 takes place, for example, when the pressure vessel 1 is coupled to the application, with the actuating element being provided on the connection of the corresponding application, which counteracts the sealing plunger 6.3 when it is fastened to the connection geometry 5, for example when the external thread is screwed into the connection the spring force pushes in the direction of the container bottom 4 and thus establishes a fluidic connection between the interior of the pressure container 1 and the application.

To support the spring element 6.5 at the end facing away from the sealing tappet 6.3, the valve 6 has the support element 6.6, which is connected to the valve body 6.7. For example, the support element 6.6 includes the external thread and the valve body 6.7 includes the corresponding internal thread, into which the support element 6.6 is screwed.

Inside the valve body 6.7, more precisely in the lower section AOU of the receiving opening AO, the spring element 6.5 is arranged, which is supported with its first end on the support element 6.6 and with its opposite second end on the sealing plunger 6.3.

Due to the design of the valve 6, it can be screwed into the end area 2 as a whole.

In this embodiment of the valve 6, the support element 6.6 is closed. Therefore, in order to allow the medium to flow into the valve 6, the inflow opening EO is formed in the lower receiving section AOU of the receiving opening AO of the valve body 6.7. It runs radially through a wall of the valve body 6.7. As a result, the medium can also flow into the lower receiving section AOU of the receiving opening AO and from there flow through the valve 6 and the two outflow openings SO in the end region 2 of the container body 3 when the valve 6 is in the open position.

For this purpose, the sealing tappet 6.3 releases the receiving opening AO at least in sections in an open position (not shown in more detail). The passage section, which the sealing tappet 6.3 releases in the open position, is here a component of the lower receiving section AOU of the receiving opening AO. To this valve function, i. H. To enable media-tight sealing in the closed position and release in the open position, the seal 6.4, which is designed in particular as an O-ring or shaft seal, is arranged between the sealing tappet 6.3 and the valve body 6.7.

Also in this example according to 7 the sealing ram 6.3 has the upper ram section 6.3.1 arranged in the upper receiving section AOO of the receiving opening AO and the subsequent lower ram section 6.3.2, the diameter of the lower ram section 6.3.2 being larger than the diameter of the upper ram section 6.3.1 and also is larger than a diameter of the upper receiving section AOO of the receiving opening AO.

As a result, the sealing tappet 6.3 rests in the closed position with the upper side of the lower tappet section 6.3.2 radially projecting beyond the upper tappet section 6.3.1 on the upper side of the lower receiving section AOU of the receiving opening AO radially projecting beyond the upper receiving section AOO of the receiving opening AO. However, this only serves to hold the sealing tappet 6.3 in the axial direction upwards in the valve body 6.7, d. H. preventing the sealing tappet 6.3 from sliding upwards out of the valve body 6.7.

The seal 6.4 is arranged circumferentially here on the lower ram section 6.3.2, in particular in a receiving groove. It is positioned on the sealing tappet 6.3 such that it is positioned above the inflow opening EO in the valve body 6.7 in the closed position of the sealing tappet 6.3 and is positioned below the inflow opening EO in the open position. i.e. this seal 6.4 is moved past the inflow opening EO by moving the sealing tappet 6.3. This will in the open position of the sealing tappet 6.3, the medium can flow into the lower receiving section AOU of the receiving opening AO and then through the valve 6 and the two outflow openings SO, and in the closed position this is prevented. The sealing plunger 6.3 is made of aluminum or brass or another material, for example.

A pressure compensation opening DAO is formed in the valve body 6.7 below the inflow opening EO, which also runs radially through the wall of the valve body 6.7. This prevents the lower area of the lower receiving section AOU of the receiving opening AO from being sealed off by the seal 6.4 when the sealing plunger 6.3 moves into the open position, which would cause overpressure to build up in this lower area and thus prevent the sealing plunger 6.3 from moving completely into the open position can be prevented or made more difficult.

In the example shown, the sealing tappet 6.3 has the diameter reduction 6.3.3 in some areas in the lower tappet section 6.3.2, in particular in the form of a circumferential groove which is wider here, in particular considerably wider than in the embodiment described above. This is designed on the sealing tappet 6.3 in such a way that a lower edge area of the diameter reduction 6.3.3 in the open position, i. H. is positioned below an upper edge region of the inlet opening EO when the sealing plunger 6.3 is moved downwards in the axial direction.

Exactly one through-opening DO is also formed here in the valve body 6.7, which here runs radially outwards from the lower receiving section AOU of the receiving opening AO. The reduction in diameter 6.3.3 in the form of the groove is formed on the sealing tappet 6.3 in such a way that it is positioned in the area of the passage opening DO both in the open position and in the closed position. As a result, moving the sealing tappet 6.3 into the open position creates a fluidic connection between the inflow opening EO, which is fluidically connected to the container interior of the container body 3, via the lower section of the receiving opening AO and the diameter reduction 6.3.3 in the sealing tappet 6.3 to the passage opening DO made in the valve body 6.7. In the example shown, the passage opening DO opens into the circumferential distributor groove VN on the outside of the valve body 6.7.

In this embodiment of the pressure vessel 1, too, the two outflow openings SO are positioned in the end region 2 of the vessel body 3 at the level of the passage opening DO in the valve body 6.7. This relates to the valve 6 arranged in the end region 2 in a predetermined end position, i. H. on the valve 6 properly connected to the container body 3.

By moving the sealing tappet 6.3 into the open position, a fluid connection between the inlet opening EO, which is fluidly connected to the container interior of the container body 3, via the lower receiving section AOU of the receiving opening AO, the diameter reduction 6.3.3 in the sealing tappet 6.3, the passage opening DO in the valve body 6.7, the circumferential distribution groove VN in the valve body 6.7 and the two outflow openings SO in the end region 2 to the outside of the pressure vessel 1, in particular for the outflow of the medium located in the interior of the vessel, in particular the gas, in particular into the application. The circumferential distribution groove VN ensures that the medium flowing out of the one through-opening DO is distributed, in particular evenly, to the two outflow openings SO.

In other exemplary embodiments, the circumferential distributor groove VN is formed, for example, in the wall 2.1 of the end area 2, i. H. on the inside of the wall 2.1. It is then designed to run around the end area 2 . The inside entrance of the respective outflow opening SO is then positioned at the bottom of the circumferential distributor groove VN and the distributor groove VN is positioned at the level of the through-opening DO in the valve body 6.7. This also relates to the valve 6 arranged in the end region 2 in a predetermined end position, i. H. on the valve 6 properly connected to the container body 3.

In further exemplary embodiments, it can be provided, for example, that such a distributor groove VN is formed both in the valve body 6.7 and in the end region 2. Then the distributor groove VN is positioned in the end area 2 at the level of the distributor groove VN in the valve body 6.7. This also relates to the valve 6 arranged in the end region 2 in a predetermined end position, i. H. on the valve 6 properly connected to the container body 3.

In order to prevent the outflow past the valve 6 on the outside in the direction of the two outflow openings SO, in this embodiment of the valve 6 as well, below the passage opening DO and the two outflow openings SO between the valve body 6.7 and the end area 2, in particular as an O-ring or Trained shaft seal, seal 6.8 provided. In the example shown, it is arranged in the receiving groove in the valve body 6.7 and is thus in sealing contact with the valve body 6.7 and also with the end region 2.

To seal the valve 6 in the axial direction outwards above the passage opening DO, in order to prevent the medium from escaping upwards through the receiving opening AO, the seal 6.9 is arranged above the passage opening DO, which is designed, for example, as an O-ring or shaft seal . In the example shown, it is arranged in a receiving groove in the sealing tappet 6.3 and is thus in sealing contact with the sealing tappet 6.3 and also with the valve body 6.7.

In summary, a seal 6.2, 6.8 is arranged between the valve body 6.7 and the end area 2 in both embodiments of the pressure vessel 1 between the valve body 6.7 and the end area 2 above and below the passage opening DO. The seal 6.2 above the passage opening DO prevents the medium from flowing out of the opening O in the end region 2 upwards out of the container body 3 . The seal 6.8 below the passage opening DO prevents the medium from flowing between the wall 2.1 of the end region 2 and the valve body 6.7 and thus past the valve 6 in the direction of the outflow openings SO in the wall 2.1 of the end region 2.

In the two embodiments of the pressure vessel 1, two seals 6.4, 6.9 are also arranged between the valve body 6.7 and the sealing tappet 6.3. A seal 6.9 is arranged above the passage opening DO in order to prevent the medium from flowing out of the receiving opening AO upwards, so that it is ensured that the medium flows out laterally exclusively via the two lateral outflow openings SO. The other seal 6.4 is arranged below the passage opening DO. With it, the fluidic connection between the passage opening DO and the area of the receiving opening AO fluidically connected to the interior of the container body 3 is prevented in the closed position of the sealing plunger 6.3 and released in the open position of the sealing plunger 6.3.

In both embodiments of the pressure vessel 1, the passage opening DO is fluidically connected to the receiving opening AO and the sealing tappet 6.3 in the closed position closes the receiving opening AO and thus also the passage opening DO in a media-tight manner and in the open position releases the receiving opening AO at least in sections and thereby releases also the passage opening DO free. The through-opening DO is thus closed media-tight in particular indirectly by means of the sealing plunger 6.3 in the closed position, in that the receiving opening AO and thereby the through-opening DO fluidically connected thereto are closed in a media-tight manner.

Reference List

1

pressure vessel

2

end area

2.1

wall

3

container body

4

container bottom

5

connection geometry

6

Valve

6.1

collar-shaped valve body section

6.2

poetry

6.3

sealing tappet

6.3.1

upper plunger section

6.3.2

lower plunger section

6.3.3

diameter reduction

6.4

poetry

6.5

spring element

6.6

support element

6.7

valve body

6.8

poetry

6.9

poetry

7

stop washer

8th

poetry

9

mounting structure

oh

intake opening

AOO

upper recording section

AOU

lower pickup section

DAO

pressure equalization opening

DO

passage opening

EO

inflow opening

0

opening

SO

outflow opening

VN

manifold groove

QUOTES INCLUDED IN DESCRIPTION

This list of the documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• WO 2021/099542 A1 [0002]

Claims (12)

Pressure vessel (1), comprising - a vessel body (3), wherein at an upper end of the vessel body (3) an end portion (2) is formed integrally with the vessel body (3) which has an opening (O), and - an a wall (2.1) surrounding the opening (O) of the end area (2), a fastening structure (9) for a valve (6) formed on the inside, characterized in that in the wall (2.1) surrounding the opening (O) of the end area (2) at least two outflow openings (SO) are formed, which are in particular arranged opposite one another. Pressure vessel (1) after claim 1 , Having the valve (6), which is arranged in the end region (2). Pressure vessel (1) after claim 2 , characterized in that a valve body (6.7) of the valve (6) has exactly one passage opening (DO) which is formed radially from an inside towards an outside of the valve body (6.7). Pressure vessel (1) after claim 3 , characterized in that the passage opening (DO) in the valve body (6.7) is positioned at the level of the outflow openings (SO) in the end region (2). Pressure vessel (1) according to one of the preceding claims, characterized in that the passage opening (DO) opens into a distributor groove (VN) formed circumferentially in the valve body (6.7) on the outside thereof and/or that an inner opening edge of the respective outflow opening (SO ) is arranged on a groove base of a circumferential distribution groove (VN) formed on the inside of the wall (2.1) of the end region (2). Pressure container (1) according to one of the preceding claims, characterized in that the fastening structure (9) has an internal thread arranged on the inside of the wall (2.1). Pressure vessel (1) after claim 6 , characterized in that the valve body (6.7) has an external thread corresponding to the internal thread of the fastening structure (9), the valve body (6.7) being arranged in the region of the opening (O) of the end region (2) when it is screwed into the internal thread, starting from the opening (0), protrudes into the end area (2), lies against the end area (2) in a media-tight manner and has a receiving opening (AO) in which a sealing plunger (6.3) is arranged, which in a closed position closes the passage opening (DO ) closes media-tight and in an open position the passage opening (DO) is released, the valve (6) having a support element (6.6) connected to the valve body (6.7) or formed on the valve body (6.7) and a support element (6.6) arranged inside the valve body (6.7). Spring element (6.5), which is supported with a first end on the support element (6.6) and with an opposite second end on the sealing plunger (6.3), wob ei the spring element (6.5) is tensioned when the sealing tappet (6.3) moves from the closed position to the open position. Pressure vessel (1) after claim 7 , characterized in that the through-opening (DO) is fluidically connected to the receiving opening (AO) and the sealing plunger (6.3) in the closed position closes the receiving opening (AO) and thereby also the through-opening (DO) in a media-tight manner and in the open position the Receiving opening (AO) at least partially releases and thereby also the passage opening (DO) releases. Pressure vessel (1) according to one of claims 3 until 8th , characterized in that the support element (6.6) and/or the valve body (6.7) has an inflow opening (EO). Pressure vessel (1) according to one of claims 3 until 9 , characterized in that the valve body (6.7) has a pressure compensation opening (DAO). Pressure container (1) according to one of the preceding claims, characterized in that the container body (3) has a container bottom (4) arranged at a lower end and constructed in one piece with the container body (3). Pressure container (1) according to one of the preceding connections, characterized in that the container body (3) has a connection geometry (5) arranged on the outside of a wall (2.1) surrounding the opening (O) of the end region (2), the wall (2.1 ) forms a connection with the connection geometry (5), which is set up to be or to be coupled in a media-tight manner to a corresponding further connection.

Images