• 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:
    Multi-stage high pressure fluid control valve where the loss of pressure inside the valve occurs gradually, stepwise and continuously, thus eliminating the problems of noise, vibration and wear, since it comprises a box with a plurality of discs where the discs have channels designed in such a way that crossings or collisions between channels of the opposite faces occur in adjacent disks and also, between each crossings, in each channel individually there are two changes of direction, producing, all this turbulence and loss of pressure to the passage of the fluid. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2698258A1
    申请号:ES201731001
    申请日:2017-08-01
    公开日:2019-02-01
    发明作者:Pallaruelo Sebastian Cazcarra
    申请人:Badain SL；
    IPC主号:
    专利说明:

    [0001]
    [0002] Multi-stage high pressure fluid control valve
    [0003]
    [0004] Field of the invention
    [0005]
    [0006] The present invention is encompassed within the industrial sector dedicated to the manufacture and / or installation of valves in general. More specifically, it refers to a multi-stage high pressure fluid control valve, designed primarily to reduce the pressure stepwise and gradually.
    [0007]
    [0008] BACKGROUND OF THE INVENTION
    [0009]
    [0010] It is known that, in the existing control valves, when the pressure drop in the valve is high, noise, vibration and rapid wear of the valve parts that obturate or regulate the flow of the fluid occurs, with they being the shutter or stopper and the retaining ring or ring, or in the cylinder, in the valves that produce reduced pressure through a cylinder or perforated box.
    [0011]
    [0012] Different types of control or regulation valves are known in the state of the art, which either do not solve the problem or do so in a complicated and costly manner. There are valves of several stages, in some of which excessive pressure drops occur, and where sonic conditions or cavitation are present that produce noise, vibration, etc.
    [0013]
    [0014] Other valves use labyrinth trajectories that, to be effective, require very long channels and therefore the discs have to have wider width resulting in the obtaining of large valves, which is not very desirable in most installations.
    [0015]
    [0016] There are solutions like the one of the patent US9115824B2, which incorporates a box with a determined number of discs, where the channels of said discs are designed so that there are junctions between channels of adjacent discs, with curved channels crossing in the opposite direction and where the only reduction pressure occurs at said crossings; that is, there is no pressure reduction between crosses.
    [0017]
    [0018] Brief description of the figures
    [0019]
    [0020] The advantages and features of the invention will be more fully understood from the following description, with reference to the following figures, which should be considered in an illustrative and non-limiting manner.
    [0021]
    [0022] Figure 1. It shows a plan view of a disk of the disk pack, where you can see the channels of the faces. In continuous line it represents those of channels of the visible face and with discontinuous those of the back face.
    [0023]
    [0024] Figure 2. Shows a perspective view of two contiguous disks of a disk pack, where the shape of the channels on the front face of a disk and the outputs of the adjacent faces of both disks and rear of the second disk can be observed.
    [0025]
    [0026] Figure 3. Shows a plan section of the contact surface in between two discs superimposed on the package of discs that form the box, where the intermediate crosses are observed, shaded in the figure, formed by the channels of the adjacent surfaces of those discs contiguous.
    [0027]
    [0028] Figure 4. Shows a cross-sectional view of an exemplary embodiment of the valve of the present invention where, among other elements, the box with the package of superimposed discs is observed.
    [0029]
    [0030] Description of the invention
    [0031]
    [0032] The elements defined in this description are provided to assist a global understanding of the invention. Accordingly, those skilled in the art will recognize that variations and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. In addition, the detailed description of sufficiently known functions and elements are omitted for reasons of clarity and conciseness.
    [0033]
    [0034] It is necessary to offer an alternative to the state of the art that covers the gaps found therein and, therefore, unlike existing solutions, this invention proposes a multistage valve solution for high pressure fluid control where, the loss of Pressure inside the valve occurs gradually, step and continuously, eliminating the problems of noise, vibration and wear.
    [0035]
    [0036] For this purpose, the valve incorporates a perforated box or cylinder that includes a pack of superimposed disks (1) that divide the total flow into a number of smaller flows, where each disk (1) includes channels (2) that follow a broken line, which means that, alternatively the line of each (2) channel has a straight or radial stretch and a curved section or arc of circumference, as shown in figures 1, 2 and 3.
    [0037]
    [0038] The channels (2) of the adjacent faces of two adjacent discs (1) are engraved in opposite directions and intersect, that is, half of the discs (1) in the clockwise direction and the other half in the direction of rotation. opposite direction, counterbalanced.
    [0039]
    [0040] Specifically, the invention relates to a high pressure fluid control valve comprising, among other elements, a box with a plurality of annular disks (1). The discs have channels (2) distributed across the surfaces of both sides. The channels (2) of the face of a disk facing those of the face of the adjacent disk have the rotation in the opposite direction, which implies that those channels (2) intersect (3).
    [0041]
    [0042] Each crossing (3) involves, successively, the passage of a straight section of the channel (2) of the face of a first disk with a curved section of the facing face of a second adjacent disk (1). These crosses are therefore produced, always at 90 °, as can be seen in figures 1 and 3 mainly.
    [0043]
    [0044] Between each two crosses (3), as shown in Figure 3, there are two changes of direction in each channel (2), individually, where you go from a straight (5) to a curved (4) and then to another straight (5) or vice versa, that is, from curved (4) to straight (5) and again to curved (4).
    [0045]
    [0046] These crosses (3) of channels (2), as well as the two changes of direction in the channels (4 and 5), individually, between each pair of crosses (3), produce turbulences to the passage of the fluid and loss of pressure , that is, losing its kinetic energy, velocity, which is the main technical problem that seeks to solve the present invention.
    [0047]
    [0048] The valve also comprises a shutter (8) that can be gradually moved axially inside the box by the interior of the disk pack (1) to regulate the flow rate. The obturator (8) moves firmly from a lower position that closes the flow by throttling a seat ring (10) to an upper position in which the inflow flows through the seat ring (10) for each one. of the disks (1).
    [0049]
    [0050] When this displacement occurs, the obturator (8) uncovers or covers channels (2) of the disc pack (1) and therefore there is a continuity in the variation of the fluid passage. As can be seen in Figure 2, the bottom of the channels in the same disk on one side is at the same level as the bottom of the channels on the other side. That is to say, there is no dead race.
    [0051] As can be seen in figure 4, in one embodiment, the high pressure fluid control valve incorporates other elements such as a valve body (7) with a cover, with the disc pack (1), with a separator (9), in addition to the obturator (8) that moves through the interior of the disks (1)
    [0052]
    [0053] The maximum efficiency is achieved by discs (1) which, contrary to other types of discs, have channels (2) on both sides or faces, do not have dead zones and therefore increase the capacity of the valve with equal diameter and stroke.
    [0054]
    [0055] This design, as observed, combines for the first time the advantages of the logarithmic spiral, which reduces the pressure at the junctions (3) of the channels (2) only and the designs of the labyrinth type, which reduces the pressure in the changes of address only (4 and 5).
    [0056]
    [0057] Unlike existing solutions, this invention provides at least the following advantages:
    [0058]
    [0059] • A greater effectiveness when occurring on the one hand the crashes at the junctions (3) between channels (2) of the facing faces on disks (1) contiguous and the two changes of direction (4 and 5) on each channel (2) of individual form between each two crosses (3). That is, unlike other solutions, there are three steps of pressure reduction instead of one, combining the pressure reduction caused by the fluid flows that collide at the intersections (3) and the pressure reductions due to directional changes (4 and 5) of the labyrinthine design.
    [0060]
    [0061] • The crossing angles (3) are always the same, regardless of the number of channels (2) or the radius of separation between intersections (3).
    [0062]
    [0063] • Flexibility to vary the crossing areas (3), changing the radios alone, depending on the service conditions, for example, during the expansion of the gases; because the angle is always 90 °.
    [0064]
    [0065] • Flexibility to vary the width of the channels (2), without affecting their number, or the crossing angles (3), since the crossing angle (3) is constant and is not affected by the width of the channels ( 2) or changes in the radial lengths required to meet the service requirements.
    [0066]
    [0067] • Shorter stroke, since there are no dead spaces between the channels (2) of the face of one disc (1) and those of the other of the same disc, that is, the depth of the channels (2) of both sides of the same disc (1) add the width of the disc (1) and, therefore, the obturator (8), when moving, has no dead stroke. Therefore, there is no dead travel of the obturator, it requires a smaller stroke and therefore small size actuators.
    权利要求:
    Claims (4)
    [1]
    1. Multi-stage high-pressure fluid control valve comprising :
    - a box with a plurality of annular discs
    - a shutter
    wherein each disk of said plurality of disks has channels distributed over the surfaces of both faces disposed to allow the passage of fluid,
    where said channels are in the form of a continuous broken spiral line that alternates a straight section, radial to the disc and a curved section, parallel to the arc of disk circumference,
    where the channels of the face of a first disk facing the channels of the face of a second contiguous disk have the rotation in the opposite direction respectively, which implies that said channels cross in succession, with the passage of a straight section of the channel of the face of said first disc with a curved section of the channel of the facing face of the second adjacent disc,
    where, between each two crosses, there are two changes of direction in each channel, individually, where one goes from a straight section to a curved and then to another straight or vice versa, that is, from a curved to a straight section and another once to a curved section,
    where said crosses and said changes of direction produce turbulences and loss of pressure to the passage of the fluid,
    wherein said obturator is arranged to gradually move axially inside the box through the interior of the plurality of discs to regulate the flow rate,
    and wherein said obturator, in its displacement, uncovers or covers channels of the plurality of disks, and therefore a continuity in the variation of the passage of the fluid.
    [2]
    2. Multi-stage high-pressure fluid control valve according to claim 1 wherein said cross-sections between the channels of the facing faces of two adjacent discs are always at 90 °.
    [3]
    3. Multi-stage high-pressure fluid control valve according to claim 1, wherein the depth of the channels of both sides of the same disk adds the width of the disk and, therefore, the shutter, when moving, has no dead stroke.
    [4]
    4. Multi-stage high-pressure fluid control valve according to claim 1 wherein said obturator is arranged to gradually move axially within the housing within the plurality of disks to regulate the flow rate, and wherein said obturator, in it displacement, it uncovers or covers channels of the plurality of disks, and therefore a continuity in the variation of the passage of the fluid.
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    同族专利:
    公开号 | 公开日
    ES2698258B2|2020-03-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1268073A|1968-05-06|1972-03-22|Richard Ernst Self|Improvements in or relating to energy loss fluid controls|
    DE2514879A1|1975-04-05|1976-10-14|Holter Gmbh & Co|Pressure reducing valve for steam, gas or liquid - permits regulation without high noise level and valve damage|
    US4567915A|1984-02-10|1986-02-04|Valtek Incorporated|Anti-cavitation low-noise control valve cage trim for high pressure reducing service in liquid or gaseous flow|
    WO2001031242A1|1999-10-28|2001-05-03|Kwon Kab Ju|Flow resistance device|
    US20140332103A1|2012-06-27|2014-11-13|Sdd Co., Ltd.|Device for reducing pressure and velocity of flowing fluid|
    US20150129786A1|2013-11-08|2015-05-14|Badain, S.L|Fluid control valve for high pressure surges|
    法律状态:
    2019-02-01| BA2A| Patent application published|Ref document number: 2698258 Country of ref document: ES Kind code of ref document: A1 Effective date: 20190201 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201731001A|ES2698258B2|2017-08-01|2017-08-01|Multi-stage high pressure fluid control valve|ES201731001A| ES2698258B2|2017-08-01|2017-08-01|Multi-stage high pressure fluid control valve|
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