• 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:
    The invention relates to a valve for placement on the outside of a deformable pipe, such as for instance a liquid manure-carrying pipe. The valve is provided with an open deformable tubular inner casing, and an open tubular outer casing at least partially enclosing the inner casing, wherein the deformability of the inner casing is greater than the deformability of the outer casing, and wherein a medium-tight space is located between the inner casing and the outer casing to which a fluid passage connects. The invention also relates to an assembly of a coupling piece and a similar valve placed around the outside of the coupling piece.
    公开号:NL2023272A
    申请号:NL2023272
    申请日:2019-06-07
    公开日:2019-12-10
    发明作者:Johannes Schurink Gerard；Bernardus Maria Hoek Johannes
    申请人:Alrena B V；
    IPC主号:
    专利说明:

    Netherlands Patent Office (2 ) Application number: 2023272 © A PATENT APPLICATION © Int. Cl .:
    F16K 7/00 (2019.01) F16L 11/00 (2019.01) (22) Application submitted: 7 June 2019 (30) Priority:
    June 2018 DE 102018113566.1 © Applicant (s):
    ALRENA B.V. in Albergen © Application registered:
    December 2019 © Request published:
    December 2019 © Inventor (s):
    Gerard Johannes Schurink in Albergen Johannes Bernardus Maria Hoek in Albergen © Authorized representative:
    ir. H.Th. van den Heuvel et al. in 's-Hertogenbosch
    54) Valve for placement on the outside of a deformable pipe, assembly of a coupling piece with valve and method for using such a valve
    57) The invention relates to a valve for placement on the outside of a deformable pipe, such as, for example, a liquid manure-carrying pipe. The valve is provided with an open deformable tubular inner casing, and an open tubular outer casing at least partially enclosing the inner casing, wherein the deformability of the inner casing is greater than the deformability of the outer casing, and wherein a medium-tight space is located between the inner casing and the outer casing to which a fluid passage connects. The invention also relates to an assembly of a coupling piece and the like valve placed around the outside of the coupling piece.
    NL A 2023272
    This publication corresponds to the documents originally submitted.
    Valve for placement on the outside of a deformable pipe, assembly of a coupling piece with valve and method for using such a valve
    The invention relates to a valve for sealing a deformable pipe, as well as to an assembly of a segment of a deformable pipe and a valve placed around the outside thereof. The invention also relates to a method for using such a valve.
    Deformable pipes, such as flexible pipes, are widely used for transporting liquids and slurries such as, for example, various aqueous solutions, liquid fertilizers, uncured cement, foodstuffs, various semi-finished products, chemical products, paper pulp but also all kinds of other liquid / solid mixtures . Different types of (control) valves, valves and valves are used to regulate the flow of such deformable pipes. Such valves, valves and taps are assembled for this purpose with the deformable pipe. A disadvantage of such valves is that in a fully opened condition they can still (locally) influence the flow of the pipe. The valves, valves and taps can also form an obstacle in the open state for solid parts in the liquids and / or slurries fed through the pipe.
    The object of the present invention is to provide a simple solution for the controllable closure of a deformable pipe without the disadvantages of the valves, valves and taps of the prior art.
    To this end, the invention provides a valve for placement on the outside of a deformable conduit, in particular a liquid fertilizer conduit conduit, comprising: an open deformable tubular inner casing, and an open tubular outer casing, which outer casing is at least partially engaging the inner casing with the inner casing connected, wherein the deformability of the inner sheath is greater than the deformability of the outer sheath, and wherein there is at least one medium-tight space between the inner sheath and the outer sheath to which a fluid passage connects. The valve is preferably dimensioned such that the deformable conduit is not deformed in a non-activated position of the valve. In other words; the inside of the tubular inner jacket is so large that it can grip the deformable pipe without deforming it. Thus, the valve according to the present invention will not constitute any obstacle to the flow of the deformable pipe as long as the valve is not activated. After all, for the liquid or slurry flowing through the deformable pipe, the valve in the non-activated form is completely “invisible”. Another advantage of the valve according to the present invention is that it can be fitted without damaging the deformable pipe; there is therefore no chance of leaks as a result of the placement of a valve. Another advantage is that the valve can be arranged at a desired location around the deformable conduit, and that, moreover, after it has been installed at a specific location, it can also be easily moved again, for example by sliding the valve over the deformable conduit. Also in existing equipment the valve according to the present invention can easily be fitted afterwards.
    Because the outer sheath of the valve is preferably less flexible than the inner sheath of the valve, the pressure on the medium-tight space will mainly force the inner sheath inwards, with the result that the valve (the inner sheath of the valve) will have a pressure on the deformable pipe around which the valve is fitted. When the pressure of the inner casing on the deformable conduit is sufficiently large, the deformable conduit will deform to a maximum of an orientation in which the deformable conduit is fully compressed. However, it is also possible to partially or partially compress the deformable conduit, so that the flow of the deformable conduit is limited but not completely impeded. The valve can thus be used for dosing the flow (with others being like a control valve. With the deformability of the outer jacket and the inner jacket, this refers to the degree of flexibility or flexibility of the outer jacket and the inner jacket, or - otherwise said - the ability of the inner sheath and the outer sheath to be able to undergo deformations whereby the relevant sheath remains intact.
    In an embodiment variant of the valve according to the present invention, the inner casing and the outer casing are connected to each other in a medium-tight manner such that the medium-tight space is located (directly) between the inner and outer casing, the at least one fluid feed-through also closes on this medium-tight space. On. By now feeding a fluid such as a gas (air / pneumatic) or liquid (hydraulic) under pressure into the fluid-tight space, since the pressure is sufficiently high (which pressure level depends on situational circumstances), the valve is activated and the deformable pipe are "pinched" to a greater or lesser extent. As an alternative to the medium-tight space formed by the inner casing and the outer casing, it is also possible for a medium-tight bellows surrounding the inner casing, for example an annular bellows, to which the at least one fluid passage adjoins, is situated between the interconnected inner casing and outer casing. The connection of the inner jacket and outer jacket need not be fluid-tight in this situation; only a mechanically strong enough connection is sufficient if a bellows is also used.
    It is advantageous if the inside of the tubular inner casing is completely flat, by which is meant that the inner surface of the tubular inner casing is not provided with parts projecting towards the inside. The flat shape of the inner side of the inner casing provides an additional guarantee that the deformable pipeline will not be deformed if the valve is not activated, because even if the inner casing rests against the deformable pipeline, the possible (limited) pressure of the valve on the deformable pipeline will be distributed more or less evenly over a large area. This reduces the chance of local peak loads of the deformable pipe (with the chance of local deformation).
    In order to minimize the material consumption for the manufacture of the valve and to maximize the installation possibilities of the valve, it is desirable that the outside of the inner casing and the inner side of the outer casing close to the ends of the inner casing and the outer casing with each other be connected.
    For an extra solid coupling of the inner casing and the outer casing, these can be connected to each other on either side with the intervention of a bush, preferably a less easily deformable bush, such as for instance a metal bush. Depending on the choice of materials, the inner jacket and the outer jacket can, for example, be vulcanized on such a sleeve. The bushes furthermore offer a good possibility of engagement for the attachment / positioning of the valve. Typically, the tubular casing-forming inner casing and the tubular outer casing have a circular cross-section because this is best connected to a deformable pipe which is circular in cross-section.
    To ensure that the deformability of the inner sheath is greater than the deformability of the outer sheath, the wall thickness of the outer sheath can be greater than the wall thickness of the inner sheath. Another measure which may or may not be used in combination with the different thicknesses of the sheaths consists of manufacturing the inner sheath from a material that is more easily deformable than the material from which the outer sheath is made, for example by manufacturing the outer sheath from a fiber-reinforced plastic. The inner and / or outer jacket can advantageously be manufactured from segments of commercially available hoses.
    In order to realize a good sealing valve in practice in the applications as described above, the valve is constructed in such a way that the medium-tight space and / or the medium-tight bellows located between the inner and outer casing can withstand a pressure sufficiently large to allow the inner casing to to deform that the deformable line can be compressed, for example when using a liquid pressure medium, a pressure of at least 8 x 10 5 Pa, preferably of at least 10 x 10 5 Pa (where 1 x 10 5 Pa = 1 bar = 10 N / cm 2 ~ 1 Atm.). However, it is also possible to work with the pressure medium at even higher pressures, for example a pressure greater than 100 x 10 5 Pa, or a pressure greater than 150 x 10 5 Pa. The simple construction of the valve according to the present invention makes it relatively easy to withstand this type of high pressures.
    In a special embodiment variant, it is also possible to divide the medium-tight space located between the inner and outer casing into a plurality of medium-tightly separated compartments, wherein at least one fluid passage connects to each separate compartment. A valve with several compartments increases the control options and / or the reliability of the valve.
    The invention also provides an assembly of a connector for pipes, such as, for example, hoses, pipes and tubes, and a valve placed around the outside of the connector as described above, wherein the connector comprises at least one segment of a deformable pipe and the segment of the deformable conduit in a non-pressurized state of the valve is not deformed by the valve. A coupling piece for (plastic) pipes, such as, for example, hoses, pipes and tubes, is also referred to as a grommet and can be used to incorporate into an existing pipe system. An advantage of the use of the assembly according to the invention is that also the deformability of the coupling piece on which the valve exerts its pressure is controlled. Thus, irrespective of the more or less formability of a pipe to be regulated, a fully manageable situation can be obtained. The coupling piece can herein be manufactured from a flexible pipe part and the coupling piece can be provided with a coupling on at least one end side. Such a coupling can for instance be formed by a thickened end of the coupling piece with a bore arranged therein, possibly also provided with a hose clamp, but other existing types of couplings can also be used. An alternative solution may consist of a metal bushing located between the inner casing and the outer casing of the valve, which sleeve extends beyond one end of the coupling piece and thus forms a coupling, wherein additionally the metal bushing leading past one end of the coupling piece for connection to pipes with variable diameters can be at least partially conical.
    The invention also provides a method for using the valve of the present invention as described above. The valve can be used for discreetly opening and closing a medium-fed pipe, but it is also possible to use the valve for controlling a volume flow through a medium-passing pipe. The valve can thus be used in various ways; only open / closed or a more continuous control of a remaining transit. A special application is the distribution of liquid manure, whereby often use is made of equipment with a large number of manure-carrying hoses. A valve according to the invention could be placed on each of these hoses in order to prevent liquid manure from coming out of a hose (think of transport conditions or when a certain soil part threatens to be over-fertilized), but it is also possible to allow the manure throughput to be larger or smaller, depending on the circumstances (such as manure conditions, driving speed, and (local) soil conditions).
    The present invention will be further elucidated with reference to the non-limitative exemplary embodiments shown in the following figures. It shows:
    Figure 1A shows a cross-section through an assembly of a valve according to the present invention and a coupling piece;
    figure 1B shows a view of an assembly of the valve and the coupling piece shown in figure 1A dismantled;
    figures 2A and 2B show a cross-section through the assembly of the valve and the coupling piece in a non-pressurized - opened - state and a pressurized - sealing - state;
    figure 3A shows a view of an alternative embodiment variant, disassembled in parts, of an assembly of a valve according to the present invention and a coupling piece;
    Figure 3B shows a cross-section through the assembled assembly shown in Figure 3A; and Figure 3C is an external perspective view of the assembled assembly shown in Figures 3A and 3B.
    Figure 1A shows a coupling piece 1 with which two pipes 2, 3 can be connected to each other. The pipes 2, 3 can for instance form part of a pipe system with which liquids or slurries are transported or distributed. The coupling piece 1 is deformable between the head ends such that the coupling piece 1 can be compressed between the end ends, as a result of which its flow is prevented or at least impeded. A valve 4 is placed around the coupling piece 1 and is composed of a deformable tubular inner jacket 5 around which a tubular outer jacket 6 is arranged. The tubular inner casing 5 and the tubular outer casing 6 are connected to each other at the ends in a medium-tight manner, whereby an intermediate space 7 is formed. A fluid passage 8 connects to the space 7. Where the tubular inner casing 5 and the tubular outer casing 6 are connected to each other, bushes 9 are arranged on either side against the inner casing 5. The figure also shows that one end of the coupling piece 1 is provided with a grommet 10 in which the ring 11 is placed for receiving the pipe 2. A hose clamp is further provided for a solid attachment of the pipe 2 to the coupling piece 1 12. Incidentally, a hose clamp 12 is also arranged on the side of the coupling piece 1 opposite the grommet 10. The valve 4 can optionally be moved over the coupling piece 1 in the axial direction. This also makes it possible to arrange the valve 4 directly around any deformable pipe and thus to fit an external valve (and if necessary remove it) without damaging the deformable pipe. An additional advantage here is that the chance of leaks due to the presence of the valve 4 is extremely small. For a detailed description of the operation of the valve 4, reference is made to Figures 2A and 2B.
    Figure 1B shows the individual parts of the valve 4 and the coupling piece 1 as already described with reference to Figure 1A in an exploded state.
    In Figure 2A, the valve 4 is in an unpressurized open state. The deformable coupling piece 1 is not deformed in this situation and a liquid or slurry can flow through the coupling piece 1 without hindrance. Instead of the coupling piece 1, the valve 4 can be arranged in an identical manner around a deformable pipe. The space 7 'is only limited in size in this condition.
    In Figure 2A the valve 4 is in a pressurized-sealing state. To this end, compared to the situation as shown in Fig. 2A, a pressure means has been introduced through the fluid passage 8 into the gap 7 "with the result that the size of the gap 7" has increased considerably in size. The result of this is that the tubular inner jacket 5 is forced inwards by the fluid pressure in the gap 7 ", and because the pressure in the gap 7" is in any case greater than the pressure in the deformable coupling piece 1, the coupling piece 1 can even be completely are pressed shut. This prevents a liquid or slurry from flowing through the coupling piece 1.
    Figure 3A shows a view of an alternative embodiment variant, disassembled in parts, of an assembly of a valve 11 and a coupling piece 12. The coupling piece 11 can be deformed between the head ends, so that it can be compressed between the head ends. The valve 11 can be placed around the coupling piece 12, as will be shown in figures 3B and 30. The valve 11 consists of a deformable tubular inner jacket 13 around which a tubular outer jacket 14 is placed. In this variant, the tubular inner jacket 13 and outer jacket 14 are also connected in a medium-tight manner at the ends, so that an expandable gap is formed. A fluid passage 15 connects to the gap. Where the tubular inner jacket 13 and outer jacket 14 can be connected to each other, a bush 16 is provided on one side and a bush with adapter 17 is provided on the opposite side. Deviating from the embodiment as shown in the previous figures, the reducer 17 is designed in such a way that it can not only be placed between the coupling piece 12 and the inner jacket 13, but it also grips a front end of the coupling piece 12. As in cross-section also in figure 3B, a beveled tapered part 18 of the reducer 17 projects out beyond the coupling piece 12. A cylindrical end piece 19 also connects to this beveled tapered part 18 of the reducer 17 - on the side remote from the coupling piece. With this adapter a tube 20 to be coupled (see figure 3B) can simply be slid onto the adapter 17 and then be fixed with a hose coupling 21. On the other side of the coupling piece, for example, a suitable pipe part 22 (see figure 3B) can be inserted into the coupling part 12 in a simple manner and subsequently be secured with a hose coupling 23. As an alternative, it is of course also possible to place reducers 17 with bevelled parts 18 on either side of the coupling piece 12. All components described with reference to Figure 3A are also shown in the cross section of the valve 11 and the coupling piece 12 in Figure 3B. An expandable space 24 is also visible therein, which is located between the inner jacket 13 and outer jacket 14.
    Figure 3C shows an outside perspective view of the assembled assembly of the valve 11, the coupling piece 12, tube 20 and pipe part 22 as shown in Figures 3A and 3B.
    权利要求:
    Claims (19)
    [1]
    Conclusions
    Closure valve for placement on the outside of a deformable conduit, in particular a liquid fertilizer conduit conduit, comprising:
    - an open, deformable tubular inner jacket, and
    - an open tubular outer casing, which outer casing the inner casing is at least partially circumferentially connected to the inner casing, the deformability of the inner casing being greater than the deformability of the outer casing, and wherein at least one medium-tight space is situated between the inner casing and the outer casing on which connect a fluid feed.
    [2]
    Valve according to claim 1, characterized in that the inner casing and the outer casing are connected to each other in a medium-tight manner such that the medium-tight space is located between the inner and outer casing.
    [3]
    Valve according to claim 1 or 2, characterized in that a medium-tight bellows surrounding the inner jacket is situated between the interconnected inner jacket and outer jacket to which the at least one fluid feed-through is connected.
    [4]
    Valve according to one of the preceding claims, characterized in that the inside of the tubular inner jacket is completely flat.
    [5]
    Valve according to one of the preceding claims, characterized in that the outside of the inner casing and the inside of the outer casing are connected to each other near the end faces of the inner casing and the outer casing.
    [6]
    Valve according to one of the preceding claims, characterized in that the inner casing and the outer casing are connected to each other on both sides with the intervention of a bush.
    [7]
    Valve according to one of the preceding claims, characterized in that the tube-forming inner jacket and / or the tube-shaped outer jacket has a circular cross-section.
    [8]
    Valve according to one of the preceding claims, characterized in that the wall thickness of the outer jacket is greater than the wall thickness of the inner jacket.
    [9]
    Valve according to one of the preceding claims, characterized in that the inner casing is made of a material that is more flexible than the material from which the outer casing is made.
    [10]
    Valve according to one of the preceding claims, characterized in that the outer casing is made of a fiber-reinforced plastic.
    [11]
    Valve according to one of the preceding claims, characterized in that the medium-tight space located between the inner and outer jacket and / or the medium-tight bellows can withstand a pressure sufficient to deform the inner jacket in such a way that the deformable pipe can be pressed shut , for example, a pressure of at least 8 x 10 5 Pa, preferably of at least 10 x 10 5 Pa.
    [12]
    Valve according to one of the preceding claims, characterized in that the medium-tight space located between the inner and outer casing is divided into a plurality of medium-tightly separated compartments and connects at least one fluid feed-through to each separate compartment.
    [13]
    13. Assembly of a connecting piece for medium-conducting pipes, such as, for example, hoses, pipes and tubes, and a valve according to any one of the preceding claims, placed around the outside of the coupling piece, wherein the coupling piece comprises at least one segment of a deformable pipe and the segment of the deformable conduit in a non-pressurized state of the valve is not deformed by the valve.
    [14]
    Assembly of a coupling piece and valve arranged around it according to claim 13, characterized in that the coupling piece is made of a flexible pipe part.
    [15]
    Assembly of a coupling piece and valve arranged around it according to claim 13 or 14, characterized in that the coupling piece is provided with a coupling on at least one end side.
    [16]
    Assembly of a coupling piece and valve arranged around it according to any one of claims 13-15, characterized in that a metal sleeve located between the inner jacket and the outer jacket of the valve leads past an end of the coupling piece and thus forms a coupling.
    [17]
    17. Assembly of a coupling piece and valve arranged around it according to claim 16, characterized in that the metal bushing which is passed past one end of the coupling piece is formed at least partially conically.
    [18]
    Method for using the valve according to one of claims 1 to 12, characterized in that the valve is used for the discreet opening and closing of a medium conduit.
    [19]
    Method for using the valve according to one of claims 1 to 12, characterized in that the valve is used for controlling a volume flow through a medium conduit.
    1/5
    10 11 12


    2/5



    Μ \\\ ^


    \\\\ ν |
    3/5

    FIG. 2A

    FIG. 2B
    4/5 co OJ

    5/5
    24 14
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    同族专利:
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    DE102018113566A1|2019-12-12|
    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
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