WO2019169650A1 - 多路阀 - Google Patents

多路阀 Download PDF

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Publication number
WO2019169650A1
WO2019169650A1 PCT/CN2018/078907 CN2018078907W WO2019169650A1 WO 2019169650 A1 WO2019169650 A1 WO 2019169650A1 CN 2018078907 W CN2018078907 W CN 2018078907W WO 2019169650 A1 WO2019169650 A1 WO 2019169650A1
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WO
WIPO (PCT)
Prior art keywords
valve
valve body
liquid
port
spool
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PCT/CN2018/078907
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English (en)
French (fr)
Inventor
万明敏
姚建设
李学富
高智
Original Assignee
克拉玛依市金牛信泰石油设备有限公司
芜湖金牛信泰石油设备有限公司
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Application filed by 克拉玛依市金牛信泰石油设备有限公司, 芜湖金牛信泰石油设备有限公司 filed Critical 克拉玛依市金牛信泰石油设备有限公司
Publication of WO2019169650A1 publication Critical patent/WO2019169650A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • F16K11/207—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with two handles or actuating mechanisms at opposite sides of the housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves

Definitions

  • the invention relates to a multi-way valve, belonging to the field of oil and gas gathering and transportation systems such as petroleum and chemical industry.
  • the multi-way valve is an important component in the crude oil mining equipment.
  • the multi-way valve has a plurality of oil ports (or called liquid inlet ports), and a plurality of oil ports are connected with pipelines for conveying oil (including metering lines and liquids). Pipeline and gathering pipeline).
  • the Chinese patent No. 201520080459.7 provides a multi-way valve, the upper valve body of which is arranged with a plurality of oil ports along its circumferential direction, and the corresponding metering line and the liquid supply line need to be along the circumferential direction of the upper valve body. Arranged to connect to the port.
  • the Chinese Patent Publication No. CN107191627A discloses a multi-way valve.
  • the structure of the two valve bodies on the left and right sides of the multi-way valve is such that the multi-way valve is changed from the original single plane to the space two planes.
  • the inter-layer space layout is realized such that the number of connected single wells is doubled to the number of single wells of the existing single-layer multi-way valve, that is, if the multi-way valve connection disclosed in the patent is utilized, it is more than the prior art.
  • the patented multi-way valve has the advantage of taking up less space and lighter weight.
  • the above multi-way valve is only provided with one spool, and the plurality of liquid inlets of the multi-way valve are selectively controlled by a single spool to selectively communicate with the metering port of the multi-way valve, and when the number of liquid ports increases, due to the liquid
  • the circumferential arrangement of the mouth increases the diameter of the circle in which the plurality of liquid inlets are located, and the plurality of liquid inlets are generally formed on a vertical plane, so that the size of the entire multi-way valve increases in the vertical direction, which It is bound to increase the space occupied by the multi-way valve in the vertical direction.
  • the present invention provides a multi-way valve capable of realizing an inter-layer space layout, which can double the number of single wells that can be connected, and can save the occupation of the plane space.
  • the technical solution adopted by the present invention is:
  • a multi-way valve comprising:
  • valve body having a metering port, a collecting port and a plurality of liquid inlet ports; the liquid inlet port and the collecting port penetrating into a valve cavity in the valve body;
  • the plurality of liquid inlets are divided into two groups; each group of liquid inlets are respectively arranged circumferentially, and the two valve cores respectively control two groups of liquid inlets, so that each group of liquid inlets passes through the corresponding valve core. Rotating so that any one of the liquid ports can be selectively electrically connected to the metering port.
  • the valve chamber has two opposite chamber walls; two sets of the liquid inlets respectively pass through the two chamber walls; and each set of liquid ports are circumferentially arranged around the corresponding spool.
  • a portion of the valve core located in the valve cavity is formed with a liquid guiding channel, and two ends of the liquid guiding channel are respectively a butting end and a strobing end; and the butting ends of the two liquid guiding channels are respectively
  • the metering ports are docked, and the gate ends of the two liquid guiding channels are respectively used for selectively connecting and communicating with the two sets of the liquid inlets.
  • the metering port projects into the valve cavity and forms two ports facing in opposite directions; two of the docking ends of the two liquid guiding channels are respectively docked with the two ports.
  • the valve body comprises a middle valve body and a left valve body and a right valve body located at two sides of the middle valve body to respectively abut the middle valve body to form the valve cavity, the two groups are The liquid ports are respectively disposed on the left valve body and the right valve body; two of the valve cores respectively extend from the left valve body and the right valve body into the valve cavity; the metering port and the The collecting port is located on the middle valve body.
  • the two valve cores are respectively a left valve core and a right valve core;
  • the left valve body and the right valve body respectively have a left mounting hole and a right mounting hole, and the left valve core passes through the left mounting hole to extend into the valve cavity, and the right spool is inserted The right mounting hole extends into the valve cavity;
  • a sealing assembly is disposed between the left valve core and the left mounting hole and between the right valve core and the right mounting hole;
  • the seal assembly includes a jacket, an inner sleeve, and a sealing packing; the first end of the outer sleeve is provided with a retaining ring, and the first end of the inner sleeve extends into the outer casing from the second end of the outer casing;
  • the sealing packing is disposed between the retaining ring and the second end of the inner sleeve, and the first ends of the inner sleeves of the two sealing assemblies respectively extend into the left valve core and the left mounting hole During the assembly between the right and the right spool and the right mounting hole, the sealing packings of the two sealing assemblies respectively cover the left spool and the right spool.
  • the outer side of the valve body is provided with a flange; the valve core is located at a portion outside the valve body through the flange; an external power mechanism is mounted on the flange for driving the The spool rotates.
  • the valve core is formed with a shoulder on a section of the flange; the thrust bearing is mounted on the shoulder; the thrust bearing is a head of the top cover sleeved on the valve core The thrust bearing is pressed against the shoulder, and the tail of the top cover forms an adjustment gap with the flange.
  • the two ports of the metering port are respectively provided with sliding bearings, the abutting ends of the liquid guiding channels of the two valve cores respectively extend into the sliding bearing, and the sliding bearing and the docking bearing A seal ring is provided between the ends.
  • the plurality of liquid inlets are divided into two groups arranged in the circumferential direction, and the diameters of the circles in each of the two groups divided are reduced as compared with the circumferential arrangement of only one group, when each group of liquid inlets is determined.
  • the plane is a vertical plane, the size of the valve body in the vertical direction can be reduced, so that the vertical space occupied by the multi-way valve can be made smaller under the condition of connecting the same number of pipelines (or multi-way valve Smaller thickness).
  • the opening and closing of the liquid port 15 and the metering port 16 are controlled by two spools, so that the method for measuring the oil flow rate is more flexible.
  • the liquid port is controlled by two spools, so that the number of single wells connected by the valve body is multiplied, and it is more advantageous in the limited space where high pressure and large size require multiple wells.
  • FIG. 1 is a front cross-sectional view of a multi-way valve according to an embodiment of the present invention.
  • FIG. 2 is an enlarged view of a portion A of FIG. 1.
  • FIG. 3 is an enlarged view of a portion B of FIG. 1.
  • FIG. 4 is an enlarged view of a portion C of FIG. 1.
  • Figure 5 is an enlarged plan view of a portion D of Figure 1.
  • Figure 6 is a front elevational view of a multi-way valve provided by an embodiment of the present invention.
  • Figure 7 is a left side elevational view of a multi-way valve provided in accordance with an embodiment of the present invention.
  • a multi-way valve disclosed in an embodiment of the present invention is used for connecting a pipeline for conveying oil.
  • the multi-way valve includes a valve body 10 and two spools.
  • a valve chamber 14 is formed inside the valve body 10, and the valve body 10 has a metering port 16, a collecting port 17, and a plurality of liquid ports 15, and the liquid port 15 and the collecting port 17 are both connected to the valve chamber 14 in the valve body 10.
  • the metering port 16 is used for measuring the flow rate of the oil
  • the collecting port 17 is used for collecting the oil entering the valve chamber 14 from the liquid inlet port 15.
  • Both spools extend into the valve chamber 14, wherein the plurality of liquid ports 15 are divided into two groups, and the two groups of liquid ports 15 are respectively arranged circumferentially, and the two valve cores respectively control the two groups of liquid ports. 15, that is, one of the spools selectively rotates the corresponding one of the liquid ports 15 to communicate with the metering port 16 by rotating; the other spool selectively causes the corresponding one by rotation A liquid inlet port 15 is connected to the metering port 16 by any one of the liquid ports.
  • the invention has the advantages that the liquid inlet port is divided into two groups arranged in the circumferential direction and the two valve cores are respectively controlled to open and close the liquid port 15 and the metering port 16 by the following advantages:
  • the plurality of liquid inlets 15 are divided into two groups arranged in the circumferential direction, and the circumferential direction is arranged by only one group, and the diameter of the circle in which each of the two groups is divided is reduced, when each group of liquid inlets 15
  • the determined plane is a vertical plane
  • the size of the valve body 10 in the vertical direction can be reduced, so that the vertical space occupied by the multi-way valve can be made smaller (or more) under the condition of connecting the same number of pipelines.
  • the thickness of the road valve is small).
  • the flow rate of the oil passing through the liquid supply port 15 can be measured by rotating any one of the valve bodies so that any one of the liquid supply ports 15 is electrically connected to the metering port 16.
  • the opening and closing of the liquid port 15 and the metering port 16 are controlled by two spools, so that the method for measuring the oil flow rate is more flexible.
  • the liquid port is controlled by two spools, so that the number of single wells connected by the valve body is multiplied, and it is more advantageous in the limited space where high pressure and large size require multiple wells.
  • valve core it is convenient to arrange the valve core so that the two valve cores do not interfere when the liquid supply port 15 communicates with the metering port 16 by rotating respectively.
  • the two spools may be arranged in various manners, for example, one of the spools may be inserted into the valve chamber 14 from the left side of the valve body 10, and the other spool is from the valve body 10.
  • the upper end projects into the valve chamber 14; for example, one of the spools can be inserted from the right side of the valve body 10 into the valve chamber 14, and the other spool extends from the upper end of the valve body 10 into the spool.
  • the two spools can be simultaneously inserted into the valve chamber 14 from the upper end, the left side, the right side, and the lower end of the valve body 10.
  • the two spools are arranged such that the two spools extend into the valve chamber 14 from the left and right sides of the valve body 10, respectively, correspondingly to the valve chamber 14
  • Two left and right opposite cavity walls are formed, and two liquid inlet ports 15 are respectively formed on the two cavity walls, and are respectively arranged around the corresponding valve core circumferentially, and the two valve cores respectively control the two cavity walls by rotation
  • the upper two groups are connected to the liquid inlet 15 and the metering port 16.
  • there may be two corresponding correspondences between the two spools and the two sets of fluid ports 15 one is to make the spool extending into the valve chamber 14 from the left side for controlling the right chamber wall.
  • a set of liquid inlets 15 and the metering port 16 are opened and closed, so that the valve core extending from the right side into the valve chamber 14 is used to control the opening and closing of a set of liquid inlet ports 15 and metering ports 16 on the left chamber wall.
  • the other is to make the valve core extending into the valve chamber 14 from the left side for controlling the opening and closing of a set of liquid inlet ports 15 and the metering port 16 on the left chamber wall so as to extend from the right side into the valve chamber 14
  • the spool is used to control the opening and closing of a set of liquid ports 15 and metering ports 16 on the right chamber wall (this is shown in Figure 1).
  • the two spools are coaxially disposed (of course, the two can also be different axes).
  • the above-mentioned valve core can control the two groups to open and close the liquid port 15 and the collecting port 17 in various ways.
  • the portion of the valve core that protrudes into the valve chamber 14 allows only one liquid port 15 and the valve by means of sealing.
  • the chamber 14 is in communication such that the oil enters the valve chamber 14 through the unblocked liquid supply port 15 and then enters the manifold port 17.
  • a passage opening in the spool is used such that one of the liquid passages 15 of each set of liquid passages communicates with the metering port 16, and the oil inlet valve of the remaining liquid inlets 15
  • the chamber 14 is then collected by the collecting passage and enters the collecting line.
  • a portion of the valve core located in the valve chamber 14 is formed with a liquid guiding passage 23, and two ends of the liquid guiding passage 23 are a butting end 231 and a strobing end 232 respectively; the mating ends 231 of the two liquid guiding passages 23 are respectively
  • the metering ports 16 are docked, and the gate ends 232 of the two liquid guiding channels 23 are used for selectively docking and communicating with the liquid inlet port 15.
  • the gate end 232 of the liquid guiding channel 23 is docked with the liquid supply port 15 by rotating the valve core, and the butt end 231 is docked with the metering port 16. Therefore, the liquid inlet port 15 and the metering port 16 are electrically connected, and the oil passing through the remaining liquid inlet ports 15 enters the valve chamber 14 and is collected by the collecting port 17 and then enters the collecting line.
  • the butt end 231 and the metering port 16 need to be in the docking state at all times, so that the docking end 231 and the metering port 16 need to be always in the docking state, and the spool at the butt end 231 can be made.
  • the butt end 231 is formed at the end of the insert sleeve, and the axis of the insert sleeve is coaxial with the axis of rotation of the spool, and the insert sleeve is inserted into the metering port 16, so that when the spool is rotated, the plug is inserted
  • the sleeve rotates about its own axis without linearly moving relative to the metering port 16, so that the butt end 231 and the metering port 16 are always in a docked state.
  • the valve body 10 is provided with a component body structure.
  • the valve body 10 of the present embodiment includes a left valve body 11, a right valve body 12, and a middle valve body 13.
  • the left valve body 11 and the right valve body 12 are detachably mounted on both sides of the middle valve body 13, and the left valve body 11, the middle valve body 13 and the right valve body 12 collectively enclose the valve chamber 14.
  • the two groups of liquid inlets 15 are respectively opened on the left valve body 11 and the right valve body 12;
  • the two valve cores are respectively the left valve core 21 and the right valve core 22, and the left valve core 21 extends through the left valve body 11
  • the right spool 22 extends through the right valve body 12 into the valve chamber 14, and the left spool 21 is used to control the liquid inlet port 15 and the metering port 16 which are opened on the left valve body 11.
  • the right valve body 12 is used to control the opening and closing of the liquid inlet port 15 and the metering port 16 which are opened on the right valve body 12.
  • the metering port 16 extends into the valve chamber 14 and forms two ports facing in opposite directions; the left butt end of the left liquid guiding channel on the left spool 21 is docked with the metering port 16 toward the port of the left valve body 11, right The right butt end of the right fluid guide passage on the spool 22 abuts the port of the metering port 16 toward the right valve body 12.
  • flanges 30 are erected on the outside of the left valve body 11 and the right valve body 12, and the left spool 21 is located on the left valve body 11
  • the outer portion and the portion of the right spool 22 located outside the right valve body 12 are respectively provided with two flanges 30.
  • the two external power mechanisms can be respectively fixed to the two flanges 30 by fasteners, the valve core through the flange 30 is connected with the output shaft of the external power mechanism, and the external power mechanism provides the torque to drive the spool to rotate.
  • the gate end 232 of the liquid guiding channel 23 is selectively docked with the liquid inlet port 15.
  • the spool is formed with a shoulder on a section of the flange 30; the thrust bearing 33 is mounted on the shoulder; and the thrust bearing 33 is pushed by the head of the top cover 32 which is sleeved on the spool.
  • the tail portion of the top cover 32 forms an adjustment gap with the flange 30.
  • the advantage of the invention for erecting the flange 30 outside the valve body 10 is that, on the one hand, the external power mechanism can be directly mounted on the valve body 10 through the flange 30, thereby facilitating the rapid assembly of the external power mechanism on the multi-way valve;
  • the core is flanged and supported by the thrust bearing, thereby increasing the rigidity of the valve core;
  • the thrust bearing having the support and the load is disposed outside the valve body, thereby reducing the number of bearings installed in the valve body,
  • the valve body has no complicated movement structure, is easy to maintain, and has a trouble-free period of operation.
  • a transition plate 31 is also mounted on the flange 30 by fasteners, and the external power mechanism is mounted on the transition plate 31 by fasteners.
  • a sliding bearing 40 is disposed in each of the two ports of the metering port 16, and the butting end 231 of the liquid guiding channel 23 extends into the sliding bearing 40, and a sealing ring is disposed between the sliding bearing 40 and the butting end 231 to prevent oil.
  • the liquid flows out from the butt end 231 and the port. In this way, the sealing ring effectively prevents oil leakage at the joint, and the sliding bearing 40 can keep the spool rotating more smoothly.
  • the multi-way valve provided by the present invention requires a sealed arrangement at multiple locations:
  • the left valve body 11 and the right valve body 12 respectively have a left mounting hole and a right mounting hole, and the left valve core 21 passes through the left mounting hole to extend into the valve cavity 14 .
  • the right spool 22 is disposed through the right mounting hole to extend into the valve cavity 14;
  • a sealing assembly is disposed between the left spool 21 and the left mounting hole and between the right spool 22 and the right mounting hole;
  • the sealing assembly includes The outer sleeve 52, the inner sleeve 51 and the sealing packing 53;
  • the first end of the outer sleeve 52 is provided with a retaining ring, the first end of the inner sleeve 51 extends from the second end of the outer sleeve 52 into the outer sleeve 52;
  • the sealing packing 53 is disposed on the retaining ring Between the second end of the inner sleeve 51.
  • the sealing assembly is assembled in such a manner that two mounting holes (left mounting hole and right mounting hole) respectively form an annular gap between the two spools (left spool 21 and right spool 22), so that the sealing assembly
  • the first end of the outer sleeve 52 and the inner sleeve 51 protrude from the valve body 10 into the annular space, and the outer wall of the outer sleeve 52 is fitted to the hole wall of the mounting hole, so that the inner hole wall of the inner sleeve 51 and the seal
  • the packing 53 covers the valve core to achieve a seal between the valve body and the valve body 10.
  • the sealing assembly is a fabricated assembly, and the sealing assembly can complete its own integral assembly outside the valve body 10, so that when the sealing packing in the sealing assembly in use is about to fail, the sealing can be replaced by the whole. Components to save replacement time, improve replacement efficiency, and reduce equipment maintenance costs.
  • a valve seat ring 61 is disposed at a left gate end of the left liquid guiding channel and a right gate end of the right liquid guiding channel, and a liquid guiding channel 23 inside the valve seat ring 61 is respectively provided.
  • An annular first step surface is formed on the inner wall, and an inner hexagonal nut 64 is disposed between the valve seat ring 61 and the first step surface, and an outer thread is formed on the outer circumference thereof, and the inner hexagonal nut 64 includes two cylindrical portions having different outer diameters.
  • the one end having a larger outer diameter abuts against the first step surface, and the end with the smaller outer diameter faces the seat ring 61, and the outer portion of the cylindrical portion having a smaller outer diameter is deformed by the inner hexagonal nut 64 to generate an axial direction.
  • the spring 63 of the force, the spring 63 and the seat ring 61 are disposed under the action of the spring 63 to push the thrust ring 62 of the seat ring 61.
  • the spring 63 can be selected from a wave or a disc spring 63, a thrust ring 62 and a spring 63. It is arranged such that the seat ring 61 is kept tightly attached to the liquid port 15 to achieve a joint seal.
  • a sealing ring is disposed between the seat ring 61 and the liquid guiding passage 23 for sealing the seat ring 61 and the liquid guiding passage 23.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)
  • Multiple-Way Valves (AREA)

Abstract

公开了一种多路阀，包括：阀体（10），其具有计量口（16）、集输口（17）以及多个来液口（15）；来液口（15）和集输口（17）贯通阀体（10）内的阀腔（14）；两个阀芯（21，22）均伸入阀腔（14）中；多个来液口（15）分成两组；两组来液口（15）均分别周向布置以使两个阀芯（21，22）均通过转动来对应控制两组来液口（15）而使任意一组来液口（15）中的任意一个来液口（15）能够选择性地与计量口（16）导通。该多路阀的优点为：通过分别转动两个阀芯（21，22）同时使两个来液口（15）与计量口（16）连通，计量口（16）可同时测得经过两个来液口（15）的油液的流量；通过两个阀芯（21，22）控制来液口（15）与计量口（16）的通断，使得测量油液流量的方式更加灵活；通过两个阀芯（21，22）控制来液口（15），使得阀体（10）连接的单井数量成倍增加，在高压大尺寸要求多井的有限空间中应用，更具有优越性。

Description

多路阀 技术领域
本发明涉及一种多路阀，属于石油、化工等油气集输系统领域。
背景技术
多路阀是原油开采设备中的重要部件，多路阀上具有多个油口(或称为来液口)，多个油口均连接有用于输送油液的管线(包括计量管线、来液管线以及集输管线)。申请号为201520080459.7的中国专利提供了一种多路阀，该多路阀的上阀体沿其周向布置有多个油口，对应的计量管线和来液管线需要沿上阀体的周向布置以便与油口连接。然而，计量管线和更多的来液管线这种周向布置的方式使得多路阀的平面空间占用较大，管线布置比较繁琐；而且还会使得阀体腔承压空间增大，意味着阀体壁厚增大，阀体总重量增加，这些都是不利的因素。
为解决上述问题，公开号为CN107191627A的中国专利公开了一种多路阀，该多路阀的左右两个阀体相对布局的结构，使多路阀由原来单一平面变成空间两个平面，实现了层间空间布局，使连接的单井数双倍于现有单层多路阀的单井数量，也就是说，若利用该专利所公开的多路阀连接与现有技术中的多路阀相同数量的管线，该专利的多路阀具有所占空间更小、重量更轻的优点。
然而，该专利所公开的多路阀却存在以下缺陷：
上述的多路阀仅设置一个阀芯，多路阀的多个来液口仅通过一个阀芯控制来与多路阀的计量口选择性地连通，当来液口数量增多时，由于来液口周向布置，使得多个来液口所在圆的直径增大，而该多个来液口通常形成在竖直的平面上，使得整个多路阀在竖直方向上的尺寸增大,这势必增大多路阀在竖直方向上所占用的空间。
发明内容
针对现有技术中存在的上述技术问题，本发明提供了一种能够实现层间空间布局的多路阀，其能连接的单井数量成倍增加，且能节省平面空间的占用。
为解决上述技术问题，本发明采用的技术方案是：
一种多路阀，包括：
阀体，其具有计量口、集输口以及多个来液口；所述来液口和所述集输口贯通至所述阀体内的阀腔；
两个阀芯，其均伸入至所述阀腔中；其中：
多个所述来液口分成两组；每组来液口均分别周向布置，两个所述阀芯分别对应控制两组来液口，以使每组来液口通过对应的阀芯的转动而使其中的任意一个来液口能够选择性地与所述计量口导通。
优选地，所述阀腔具有两个相对的腔壁；两组所述来液口分别对应贯通两个所述腔壁；且每组来液口分别绕对应的阀芯周向布置。
优选地，所述阀芯位于所述阀腔内的部分形成有导液通道，所述导液通道的两端分别为对接端和选通端；两个所述导液通道的对接端均与所述计量口对接，两个所述导液通道的选通端分别用于与两组所述来液口选择性对接而连通。
优选地，所述计量口伸入至所述阀腔中并形成朝向相反的两个端口；两个所述导液通道的两个所述对接端分别与两个所述端口对接。
优选地，所述阀体包括中阀体以及位于所述中阀体的两侧以分别与所述中阀体对接围成所述阀腔的左阀体和右阀体，两组所述来液口分别开设在所述左阀体和所述右阀体上；两个所述阀芯分别从左阀体和所述右阀体伸入至所述阀腔中；所述计量口和所述集输口位于所述中阀体上。
优选地，
两个所述阀芯分别为左阀芯和右阀芯；
所述左阀体和右阀体分别对应开设有左安装孔和右安装孔，所述左阀芯穿设所述左安装孔以伸入至所述阀腔中，所述右阀芯穿设所述右安装孔以伸入至所述阀腔中；
所述左阀芯与所述左安装孔之间以及所述右阀芯与所述右安装孔之间均装设有密封组件；
所述密封组件包括外套、内套以及密封填料；所述外套的第一端设置有挡环，所述内套的第一端自所述外套的第二端伸入至所述外套中；所述密封填料设置于所述挡环与所述内套的第二端之间，当两个所述密封组件的所述 内套的第一端分别对应伸入至左阀芯与左安装孔之间以及右阀芯与右安装孔之间以完成装配时，两个所述密封组件的密封填料分别包覆左阀芯和右阀芯。
优选地，所述阀体外侧架设有法兰盘；所述阀芯位于所述阀体外的部分穿设所述法兰盘；外部动力机构装配于所述法兰盘上以用于驱动所述阀芯转动。
优选地，所述阀芯穿设所述法兰盘的一段上形成有轴肩；所述轴肩处装设有推力轴承；所述推力轴承由套设于阀芯上的顶盖的头部推抵以使所述推力轴承与轴肩紧抵，所述顶盖的尾部与所述法兰盘形成有调整间隙。
优选地，所述计量口的两个端口内分别装设滑动轴承，两个所述阀芯的导液通道的对接端分别伸入至所述滑动轴承中，且所述滑动轴承与所述对接端之间设置有密封圈。
与现有技术相比，本发明的多路阀的有益效果是：
1、多个来液口分成周向布置的两组相比于只通过一组进行周向布置，所分成的两组的每组所在的圆的直径减小，当每组来液口所确定的平面为竖直平面时，可减小阀体在竖直方向上的尺寸，从而能够在连接相同数量管线条件下，使得多路阀所占用的竖直空间较小(或者说多路阀的厚度尺寸较小)。
2、通过两个阀芯控制来液口15与计量口16的通断，使得测量油液流量的方式更加灵活。
3、通过两个阀芯控制来液口，使得阀体连接的单井数量成倍增加，在高压大尺寸要求多井的有限空间中应用，其更具有优越性。
附图说明
图1为本发明的实施例提供的多路阀的主剖视图。
图2为图1的局部A的放大视图。
图3为图1的局部B的放大视图。
图4为图1的局部C的放大视图。
图5为图1的局部D的放大视图。
图6为本发明的实施例提供的多路阀的主视图。
图7为本发明的实施例提供的多路阀的左视图。
图中：
10-阀体；11-左阀体；12-右阀体；13-中阀体；14-阀腔；15-来液口；16-计量口；17-集输口；21-左阀芯；22-右阀芯；23-导液通道；231-对接 端；232-选通端；30-法兰盘；31-过渡盘；32-顶盖；33-推力轴承；40-滑动轴承；61-阀座环；62-推力环；63-弹簧；64-内六方螺母。
具体实施方式
为使本领域技术人员更好的理解本发明的技术方案，下面结合附图和具体实施方式对本发明作详细说明。
如图1和图2所示，本发明实施例公开的一种多路阀，该多路阀用于连接输送油液的管线。该多路阀包括阀体10以及两个阀芯。阀体10内部形成有阀腔14，且阀体10具有计量口16、集输口17以及多个来液口15，来液口15和集输口17均与阀体10内的阀腔14贯通。其中，计量口16用于测量油液的流量，集输口17用于汇集从来液口15进入阀腔14内的油液。两个阀芯均伸入至阀腔14中，其中，使多个来液口15分成两组，两组来液口15均分别周向布置，两个阀芯分别对应控制两组来液口15，也就是，其中一个阀芯通过转动选择性地使对应的一组来液口15中的任意一个来液口15与计量口16连通；另一个阀芯通过转动选择性地使对应的另一组来液口中的任意一个来液口15与计量口16连通。
容易理解：每组周向布置的来液口15所确定的圆的圆心位于所对应的阀芯的转动中心线上。
本发明使来液口分成周向布置的两组并分别利用两个阀芯控制来液口15与计量口16通断的优点在于：
1、多个来液口15分成周向布置的两组相比于只通过一组进行周向布置，所分成的两组的每组所在的圆的直径减小，当每组来液口15所确定的平面为竖直平面时，可减小阀体10在竖直方向上的尺寸，从而能够在连接相同数量管线条件下，使得多路阀所占用的竖直空间较小(或者说多路阀的厚度尺寸较小)。
2、可通过转动其中任意一个阀芯使得所有来液口15中的任意一个来液口15与计量口16导通，从而能够测量经过该来液口15的油液的流量。
3、通过两个阀芯控制来液口15与计量口16的通断，使得测量油液流量的方式更加灵活。
4、通过两个阀芯控制来液口，使得阀体连接的单井数量成倍增加，在高压大尺寸要求多井的有限空间中应用，其更具有优越性。
5、方便布置阀芯，使得两个阀芯在各自分别通过转动而使来液口15与计量口16连通时不会发生干涉现象。
在本发明中，两个阀芯的布置方式可以有多种，例如，可以使其中一个阀芯从阀体10的左侧伸入至阀腔14中，其中另一个阀芯从阀体10的上端伸入至阀腔14中；再例如，可以使其中一个阀芯从阀体10的右侧伸入至阀腔14中，其中另一个阀芯从阀体10的上端伸入至阀芯中；再例如，可使两个阀芯同时从阀体10的上端、左侧、右侧以及下端同时伸入至阀腔14中。
在本发明的一个优选实施例中，两个阀芯的布置方式为：使两个阀芯分别从阀体10的左、右两侧伸入至阀腔14中，对应地，使阀腔14形成两个左、右相对的腔壁，且两个来液口15分别形成在两个腔壁上，并分别绕对应的阀芯周向布置，两个阀芯通过转动分别控制两个腔壁上的两组来液口15与计量口16的通断。在本实施例中，两个阀芯与两组来液口15的控制的对应关系可以有两种：一种是使从左侧伸入阀腔14中的阀芯用于控制右腔壁上的一组来液口15与计量口16的通断，使从右侧伸入至阀腔14中的阀芯用于控制左腔壁上的一组来液口15与计量口16的通断；另一种是使从左侧伸入阀腔14中的阀芯用于控制左腔壁上的一组来液口15与计量口16的通断，使从右侧伸入至阀腔14中的阀芯用于控制右腔壁上的一组来液口15与计量口16的通断(附图1所展示的是该种情况)。在本实施例中，两个阀芯同轴设置(当然，两个也可以不同轴)。
上述的阀芯可通过多种方式控制两组来液口15与集输口17的通断，例如，阀芯伸入阀腔14的部分通过封堵的方式只允许一个来液口15与阀腔14连通，从而油液经过未封堵的来液口15进入阀腔14，然后再进入集输口17。
在本发明的一个优选实施例中，利用开设在阀芯上的通道，使得每组来液通道中的一个来液口15与计量口16连通，而经过其余来液口15的油液进入阀腔14后由集输通道汇集，并进入集输管线。具体地，阀芯位于阀腔14内的部分形成有导液通道23，导液通道23的两端分别为对接端231和选通端232；两个导液通道23的对接端231均分别与计量口16对接，两个导液通道23的选通端232用于与来液口15选择性地对接而连通。如此，当需要计量经过某一来液口15的油液的流量时，通过转动阀芯而使导液通道23的选通端232与该来液口15对接，对接端231与计量口16对接，从而使来液 口15与计量口16导通，经过其余来液口15的油液进入阀腔14后由集输口17汇集然后进入集输管线。
应该理解：在阀芯转动过程中，对接端231与计量口16需始终处于对接状态，为能够达到对接端231与计量口16需始终处于对接状态的目的，可使对接端231处的阀芯设置形成插套，对接端231形成在插套的端部，且使插套的轴线与阀芯的转动轴线同轴，并使插套插入计量口16中，如此，当阀芯转动时，插套绕自身的轴线转动而不会整体相对计量口16发生线性运动，从而使对接端231与计量口16始终处于对接状态。当然，使对接端231与计量口16需始终处于对接状态的结构和方式还有多种，在此不再一一赘述。
为方便制造、装配和维修，阀体10设置成分体结构，具体地，如图1和图6所示，本实施例的阀体10包括左阀体11、右阀体12以及中阀体13，左阀体11、右阀体12以可拆卸的方式装设于中阀体13的两侧，左阀体11、中阀体13以及右阀体12共同围成阀腔14。其中，两组来液口15分别开设在左阀体11和右阀体12上；两个阀芯分别为左阀芯21和右阀芯22，左阀芯21穿过左阀体11后伸入至阀腔14中，右阀芯22穿过右阀体12伸入至阀腔14中，且左阀芯21用于控制开设在左阀体11上的来液口15与计量口16的通断，右阀体12用于控制开设在右阀体12上的来液口15与计量口16的通断。优选地，计量口16伸入至阀腔14中并形成朝向相反的两个端口；左阀芯21上的左导液通道的左对接端与计量口16朝向左阀体11的端口对接，右阀芯22上的右导液通道的右对接端与计量口16朝向右阀体12的端口对接。
为方便安装用于驱动阀芯转动的外部动力机构(例如，驱动电机)并同时为提高阀芯的刚度(阀芯因伸出阀体外一段而会使得自身刚度减小)，在本发明的一个优选实施例中，如图1和图2，并结合图6和图7所示，在左阀体11和右阀体12的外侧均架设法兰盘30，左阀芯21位于左阀体11外的部分以及右阀芯22位于右阀体12外的部分分别穿设两个法兰盘30。如此，两个外部动力机构可通过紧固件分别固定在两个法兰盘30上，阀芯穿设法兰盘30与外部动力机构的输出轴连接，外部动力机构提供扭力以驱动阀芯转动，从而使导液通道23的选通端232与来液口15选择性对接。在本实施例中，阀芯穿设法兰盘30的一段上形成有轴肩；轴肩处装设有推力轴承33；推力 轴承33由套设于阀芯上的顶盖32的头部推抵以使推力轴承33与轴肩紧抵，顶盖32的尾部与法兰盘30形成有调整间隙。
本发明在阀体10外架设法兰盘30的优势在于：一方面，外部动力机构可直接通过法兰盘30安装在阀体10上，从而方便外部动力机构快速装配于多路阀上；阀芯穿设法兰盘并由推力轴承支撑，从而提高了阀芯的刚度；再一方面，将具有支撑及承载的推力轴承布局到阀体外，从而减少了装设于阀体中的轴承的数量，使阀体内无复杂的运动结构，便于维护，运行无故障周期延长。
优选地，在法兰盘30上还通过紧固件装设有过渡盘31，外部动力机构通过紧固件装设于过渡盘31上。
为能够保证在阀芯转动时，导液通道23的对接端231与计量口16的端口始终保持对接状态，并尽量减小计量口16对阀芯转动的阻力，在本发明的一个优选实施例中，计量口16的两个端口内分别装设滑动轴承40，导液通道23的对接端231伸入至滑动轴承40中，且滑动轴承40与对接端231之间设置有密封圈以防止油液从对接端231与端口之间流出。如此，密封圈有效防止了对接处漏油，滑动轴承40能够保持阀芯转动更加顺利。
本发明所提供的多路阀在多处位置需要密封设置：
1、在阀芯穿设阀体10的位置需要密封。
具体地，如图1和图4所示，左阀体11和右阀体12分别对应开设有左安装孔和右安装孔，左阀芯21穿设左安装孔以伸入至阀腔14中，右阀芯22穿设右安装孔以伸入至阀腔14中；左阀芯21与左安装孔之间以及右阀芯22与右安装孔之间均装设有密封组件；密封组件包括外套52、内套51以及密封填料53；外套52的第一端设置有挡环，内套51的第一端自外套52的第二端伸入至外套52中；密封填料53设置于挡环与内套51的第二端之间。密封组件的装配方式为：使两个安装孔(左安装孔和右安装孔)分别对应于两个阀芯(左阀芯21和右阀芯22)之间均形成环状空隙，使密封组件中的外套52和内套51的第一端自阀体10外伸入至环状空隙中，并使外套52的外壁与安装孔的孔壁贴合，使内套51的内孔壁以及密封填料53包覆阀芯，从而实现阀芯与阀体10之间的密封。在本实施例中，密封组件为装配式组件，密封组件可在阀体10外完成自身的整体装配，如此，当处于使用状态的密封 组件中的密封填料在即将失效时，可通过整体更换密封组件来节约更换的时间，提高了更换效率，降低了设备的维护成本。
2、导流通道的选通端232与来液口15的对接处需要密封。
具体地，如图1和图5所示，在左导液通道的左选通端和右导液通道的右选通端分别设置有阀座环61，阀座环61内侧的导液通道23的内壁上形成环形的第一台阶面，阀座环61与第一台阶面之间设置内六方螺母64，其外周开设有外螺纹，内六方螺母64包括外径不等的圆柱状的两部分，外径较大的一端抵在第一台阶面上，外径较小的一端朝向阀座环61，外径较小的圆柱状部分外套设有在内六方螺母64的作用下变形产生轴向力的弹簧63，弹簧63与阀座环61之间设置在弹簧63的作用下顶推阀座环61的推力环62，弹簧63可以选用波形或碟形弹簧63，推力环62和弹簧63的设置，使得阀座环61一直保持紧密的贴合来液口15，实现了结合密封。同时，阀座环61与导液通道23之间设置密封圈，用于密封阀座环61与导液通道23。
以上实施例仅为本发明的示例性实施例，不用于限制本发明，本发明的保护范围由权利要求书限定。本领域技术人员可以在本发明的实质和保护范围内，对本发明做出各种修改或等同替换，这种修改或等同替换也应视为落在本发明的保护范围内。

Claims (9)

  1. 一种多路阀，包括：
    阀体，其具有计量口、集输口以及多个来液口；所述来液口和所述集输口贯通至所述阀体内的阀腔；
    两个阀芯，其均伸入至所述阀腔中；其中：
    多个所述来液口分成两组；每组来液口均分别周向布置，两个所述阀芯分别对应控制两组来液口，以使每组来液口通过对应的阀芯的转动而使其中的任意一个来液口能够选择性地与所述计量口导通。
  2. 根据权利要求1所述的多路阀，其特征在于，所述阀腔具有两个相对的腔壁；两组所述来液口分别对应贯通两个所述腔壁；且每组来液口分别绕对应的阀芯周向布置。
  3. 根据权利要求2所述的多路阀，其特征在于，所述阀芯位于所述阀腔内的部分形成有导液通道，所述导液通道的两端分别为对接端和选通端；两个所述导液通道的对接端均与所述计量口对接，两个所述导液通道的选通端分别用于与两组所述来液口选择性对接而连通。
  4. 根据权利要求3所述的多路阀，其特征在于，所述计量口伸入至所述阀腔中并形成朝向相反的两个端口；两个所述导液通道的两个所述对接端分别与两个所述端口对接。
  5. 根据权利要求2所述的多路阀，其特征在于，所述阀体包括中阀体以及位于所述中阀体的两侧以分别与所述中阀体对接围成所述阀腔的左阀体和右阀体，两组所述来液口分别开设在所述左阀体和所述右阀体上；两个所述阀芯分别从左阀体和所述右阀体伸入至所述阀腔中；所述计量口和所述集输口位于所述中阀体上。
  6. 根据权利要求5所述的多路阀，其特征在于，
    两个所述阀芯分别为左阀芯和右阀芯；
    所述左阀体和右阀体分别对应开设有左安装孔和右安装孔，所述左阀芯穿设所述左安装孔以伸入至所述阀腔中，所述右阀芯穿设所述右安装孔以伸入至所述阀腔中；
    所述左阀芯与所述左安装孔之间以及所述右阀芯与所述右安装孔之间均装设有密封组件；
    所述密封组件包括外套、内套以及密封填料；所述外套的第一端设置有挡环，所述内套的第一端自所述外套的第二端伸入至所述外套中；所述密封填料设置于所述挡环与所述内套的第二端之间，当两个所述密封组件的所述内套的第一端分别对应伸入至左阀芯与左安装孔之间以及右阀芯与右安装孔之间以完成装配时，两个所述密封组件的密封填料分别包覆左阀芯和右阀芯。
  7. 根据权利要求2所述的多路阀，其特征在于，所述阀体外侧架设有法兰盘；所述阀芯位于所述阀体外的部分穿设所述法兰盘；外部动力机构装配于所述法兰盘上以用于驱动所述阀芯转动。
  8. 根据权利要求7所述的多路阀，其特征在于，所述阀芯穿设所述法兰盘的一段上形成有轴肩；所述轴肩处装设有推力轴承；所述推力轴承由套设于阀芯上的顶盖的头部推抵以使所述推力轴承与轴肩紧抵，所述顶盖的尾部与所述法兰盘形成有调整间隙。
  9. 根据权利要求4所述的多路阀，其特征在于，所述计量口的两个端口内分别装设滑动轴承，两个所述阀芯的导液通道的对接端分别伸入至所述滑动轴承中，且所述滑动轴承与所述对接端之间设置有密封圈。
PCT/CN2018/078907 2018-03-05 2018-03-14 多路阀 WO2019169650A1 (zh)

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