WO2021042901A1 - 一种阀座组件及具有该阀座组件的球阀 - Google Patents

一种阀座组件及具有该阀座组件的球阀 Download PDF

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Publication number
WO2021042901A1
WO2021042901A1 PCT/CN2020/103828 CN2020103828W WO2021042901A1 WO 2021042901 A1 WO2021042901 A1 WO 2021042901A1 CN 2020103828 W CN2020103828 W CN 2020103828W WO 2021042901 A1 WO2021042901 A1 WO 2021042901A1
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WIPO (PCT)
Prior art keywords
valve seat
valve
seat assembly
annular groove
support ring
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PCT/CN2020/103828
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English (en)
French (fr)
Inventor
陈军
宋世君
黄艳平
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苏州纽威阀门股份有限公司
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Publication of WO2021042901A1 publication Critical patent/WO2021042901A1/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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0689—Packings between housing and plug
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details

Definitions

  • the invention relates to the technical field of valves, in particular to a valve seat assembly and a ball valve with the valve seat assembly.
  • the ball valve has become one of the more widely used valves because of its reliable sealing, simple structure and convenient maintenance.
  • the top-mounted ball valve has the advantages of less leakage points, no pipe stress on the flange, and online maintenance. It is widely used.
  • valve ball is sealed and supported in the valve through the valve seat.
  • the valve seat is usually installed in the valve, and its axial end can be provided with a support ring to support and fix it; on the one hand, the support ring supports the fixed seat and the valve is closed.
  • the pressure on the contact position of the support ring with the spherical surface is small, and the pressure on the position where the support ring is not in contact with the spherical surface is greater than the pressure on the side in contact with the spherical surface due to the impact of the medium.
  • the uneven pressure on the middle support ring causes it to fall off from the retainer, which in turn causes the valve seat to lose support and detach from the fixing groove. There is a risk of the valve seat being cut off during the rotation of the valve ball. Therefore, it is urgent for those skilled in the art to solve this problem. This problem.
  • the technical problem to be solved by the present invention is to overcome the problem of the position where the support ring is in contact with the spherical surface where the medium pressure is small and the position where the support ring is not in contact with the spherical surface in the process of the valve from closing to gradual opening and then closing in the prior art.
  • the pressure of the medium is greater than the pressure of the medium in contact with the spherical surface. Therefore, the support ring receives uneven pressure during use, which causes it to fall off from the holder, resulting in an unsupported state of the valve seat and the risk of the valve seat being cut off.
  • kinds of valve seat components including:
  • the retainer is installed in the ball valve housing, and its axial end surface is provided with a first annular groove and a second annular groove, wherein the first annular groove is provided on the side of the second annular groove close to the valve ball;
  • valve seat is arranged in the first annular groove
  • the support ring is arranged in the second annular groove, and the support ring includes a mounting portion and at least one locking portion distributed along its circumference. Both the mounting portion and the locking portion include a ring body, the The locking part also includes a lock buckle formed on the radial inner side of the ring body;
  • the second annular groove includes a groove body and a lock groove, the groove body is suitable for the ring body to be inserted into, and the lock groove is suitable for the lock catch to be inserted into.
  • lock catch is an arc-shaped boss formed on the radial inner side of the ring body.
  • the locking part is a continuous arc-shaped boss.
  • the locking part is a semicircular annular boss.
  • the locking part includes a plurality of arc-shaped bosses arranged in intervals and sections.
  • the lock groove is provided at a position where the support ring is affected by the flowing medium during the opening of the valve ball.
  • the axial cross-sectional shape of the locking part is L-shaped or T-shaped.
  • the axial cross section of the lock catch is rectangular or regular trapezoid.
  • the ring body is in interference fit with the groove body of the second annular groove.
  • the support ring is made of rubber and plastic material
  • the fixer is made of rubber material.
  • a ball valve including:
  • the valve ball is arranged between a pair of valve seats and a pair of support rings.
  • valve stem one end of which is connected with the valve ball and rotates together, and the other end of which passes through the housing and extends out of the housing.
  • a valve seat assembly provided by the present invention, comprising: a retainer installed in the ball valve housing, one axial end surface of which is provided with a first annular groove and a second annular groove, wherein the first annular groove is provided in the first annular groove A side of the two annular grooves close to the valve ball; the valve seat is arranged in the first annular groove; a support ring is arranged in the second annular groove, the support ring includes a mounting portion distributed along its circumference and At least one locking part, the mounting part and the locking part both comprise a ring body, the locking part further comprises a lock buckle formed on the radial inner side of the ring body; the second annular groove comprises a groove body And a lock groove, the groove body is suitable for the ring body to be inserted into, and the lock groove is suitable for the lock buckle to be inserted into.
  • the overall device structure of the valve seat assembly of the present invention is reasonable in structure design, the support ring is installed in the ball valve through the retainer, which provides a stable support force for the ball valve and prevents the ball valve from being scratched due to pressure during the rotation process , The service life of the valve is prolonged.
  • the support ring is set as the locking part and the mounting part.
  • the locking part includes a lock catch.
  • a lock groove is opened on the groove body of the second annular groove, and the lock catch matches the lock groove.
  • the support ring is provided with a locking part to improve the bonding strength of the support ring and the holder, avoiding the uneven force of the support ring during the flow of the medium, and the force on the part in contact with the fluid medium is less than the part where the force is not in contact. , Which in turn leads to the problem of blowing out from the holder and the valve seat being cut off; the installation of the installation part facilitates the smooth installation of the support ring.
  • the locking part is a continuous arc-shaped boss.
  • the locking part includes a number of arc-shaped bosses arranged in sections at intervals; or the locking part is a semicircular ring boss.
  • the lock groove is provided at a position where the support ring is affected by the flowing medium during the opening of the valve ball. Since the support ring is subject to a large impact by the medium at the position where the medium is affected, it is easy to be blown out of the holder by the fluid medium, which will cause the valve to fail. Therefore, there is a device for installing the locking part at the place where the medium is impacted.
  • the lock groove improves the bonding strength of the support ring with the holder at the place where the impact force is relatively large, which can improve the installation stability of the support ring.
  • the support ring is made of rubber and plastic material
  • the retainer is made of rubber material.
  • the support ring and the holder are respectively set to be made of rubber and plastic materials, which improves the installation and sealing performance between the support ring and the holder, and the sealing is also more convenient.
  • a ball valve provided by the present invention, comprising: a housing in which a pair of valve seat components as described above are installed, a valve seat and a support ring are installed in the valve seat component; the valve ball is arranged in Between a pair of valve seats and a pair of support rings. Since the device adopts the above-mentioned valve seat assembly, all the advantages of the above-mentioned valve seat assembly are specified.
  • Figure 1 is a schematic diagram of the structure of the fixer of the present invention.
  • Figure 2 is a schematic view of the structure of the anchor of the present invention along the A-A section;
  • Figure 3 is a schematic view of the structure of the fixture of the present invention along the B-B section;
  • Figure 4 is a schematic diagram of the support ring structure of the present invention.
  • Figure 5 is a side view of the support ring structure of the present invention.
  • Fig. 6 is a schematic diagram of the supporting ring and the fixing device installation mechanism of the present invention.
  • Figure 7 is a schematic diagram of the connection structure between the valve seat assembly and the valve ball of the present invention.
  • Figure 8 is a schematic diagram of the ball valve rotation process
  • Fixer 31, first annular groove; 32, second annular groove; 321, groove body; 322, lock groove;
  • Valve seat 5. Support ring; 51. Ring body; 52. Locking; 6. Installation part; 7. Locking part.
  • the present invention records a ball valve. See Figure 7.
  • the ball valve includes a housing (not shown in the figure), a valve ball 2 and a valve stem (not shown in the figure).
  • the housing 1 is installed with a
  • the valve seat assembly includes a retainer 3, a valve seat 4 and a support ring 5; the valve ball 2 is arranged between a pair of valve seats 4 and a pair of support rings 5, one end of the valve stem It is connected with the valve ball 2 and rotates together, and its other end passes through the housing 1 and extends out of the outer end of the housing 1 to ensure the normal use of the ball valve.
  • the valve seat assembly includes a retainer 3, a valve seat 4, and a support ring 5.
  • the support ring 5 is mounted on the valve seat 4 and fixed Between the devices 3, the support ring 5 supports the valve seat 4, wherein the valve ball 2 abuts on the ring body of the support ring 5 to provide a stable rotating environment for the valve ball and avoid the valve ball and The direct contact of the retainer serves to isolate the valve ball from the retainer.
  • the retainer 3 is installed in the ball valve housing 1, and its axial end surface close to the valve ball is provided with a first annular groove 31 and a second annular groove 32, wherein the first annular groove 31 is provided in the first annular groove 31
  • the second annular groove 32 is close to the side of the valve ball 2.
  • the first annular groove 31 is arranged adjacent to the second annular groove 32.
  • the second annular groove 32 includes a groove body 321 and a lock groove 322.
  • the valve seat 4 is arranged in the first annular groove. In the groove 31, the support ring 5 is snapped into the second annular groove 32.
  • Fig. 8 is a schematic diagram of the valve opening process.
  • the valve ball 2 is actuated by the valve stem to rotate counterclockwise in Fig. 8, and the fluid medium enters the cavity of the valve ball 2 from the right channel in Fig. 8 Finally, it enters the left channel.
  • the lower part of the support ring of the holder on the right side and the upper part of the left part of the holder in Figure 8 will be impacted by the fluid medium.
  • a lock catch is provided at the position affected by the flowing medium, and the lock groove 322 is correspondingly provided in the holder, which is used to improve the bonding strength of the support ring at the impacted part and the holder, and ensure that the support ring is opened in time.
  • the valve will not fall off from the second ring groove even if it receives a large impact in an instant. It realizes the stable installation of the retainer 3 and the support ring 5, and reduces the impact of the medium flowing on the support ring caused by the medium impact from the holder. The risk of falling off, so as to avoid the risk of losing the support of the valve seat and being cut off; improve the life of the valve
  • the support ring 5 is arranged in the second annular groove 32, and the support ring 5 includes a mounting portion 6 and at least one locking portion 7 distributed along its circumference, wherein the locking portion 7 and the mounting portion 6 are integrally formed;
  • the mounting part 6 and the locking part 7 both include a ring body 51, and the locking part 7 also includes a lock 52 formed on the radial inner side of the ring body 51; wherein the lock 52 and the ring body 51 are integrally formed .
  • the circumferential direction of the support ring 5 refers to the circumferential direction of the support ring
  • the lock catch 52 is a continuous arc-shaped boss formed on the radial inner side of the ring body 51.
  • the arc-shaped boss is a semi-circular boss on the ring body. Of course, it is not limited to being a semi-circular boss, and it can also be an arc-shaped boss in any other included angle.
  • the semicircular boss is adapted to the shape of the lock groove, that is, the lock groove is also a semicircular lock groove, thereby increasing the contact area between the support ring and the holder, and improving the support ring and the fixing The stability of the installation between the devices.
  • the buckle snaps into the lock groove of the second annular groove
  • the ring body is installed inside the groove body of the second annular groove, and there is interference between the ring body and the groove body.
  • Cooperate adopt the interference installation method to be simple, fast and high reliability.
  • the arc-shaped bosses may also be arranged on the ring body at intervals and in sections.
  • the arc-shaped bosses are arranged in sections on the ring body at intervals, which not only ensures the stable installation of the support ring and the holder, but also reduces the production cost and is convenient for market promotion and use.
  • the axial cross-sectional shape of the locking part is L-shaped or T-shaped.
  • the axial section of the locking part refers to a section obtained by cutting the locking part through a plane passing through the axis of the support ring.
  • the support ring is made of rubber and plastic material, and the fixer is made of rubber material.
  • the support ring and the holder are made of soft materials, which can seal the support ring and the holder well to ensure the sealing performance of the overall device.
  • the installation process of the valve seat assembly of the present invention is:
  • the mounting part First snap the ring body of the mounting part of the support ring and install it on the second annular groove of the holder, and then rotate the support ring. During the rotation, the mounting part does not leave the second annular groove and enters by rotating the lock of the locking part.
  • the locking part and the ring body of the mounting part are installed in the groove body of the retainer with interference, the lock buckle is snapped into the lock groove, and the support ring and the retainer are installed;
  • valve seat is clamped and installed in the first annular groove; thus, the installation of the valve seat assembly is completed, and finally the valve seat assembly is installed in the housing, and the valve ball and the valve stem are assembled separately to complete the installation of the ball valve.
  • the overall structure design of the valve seat assembly of the present invention is reasonable, and the sealing performance is good.
  • the fluid medium is conducted, the safety of use is guaranteed, and the support ring and the holder will not be separated due to the impact of the fluid medium and the valve seat will not be separated from the valve. The situation where the ball breaks.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

一种阀座组件，包括固定器(3)，安装于球阀壳体(1)内，其轴向一端面设有第一环形槽(31)和第二环形槽(32)；阀座(4)，设置在第一环形槽内；支撑环(5)，设置在第二环形槽内，包括沿其周向分布的安装部分(6)和至少一个锁紧部分(7)，安装部分和锁紧部分均包括环本体(51)，锁紧部分还包括形成于环本体径向内侧的锁扣(52)；第二环形槽包括槽本体(321)和锁槽(322)，槽本体适于环本体卡入，锁槽适于锁扣卡入。该阀座组件设计合理，支撑环安装在球阀与流通管道上，给球阀提供稳定的支撑力，同时防止球阀在转动的过程中因为受压的原因导致其被划伤的问题，延长了阀门的使用寿命。还公开了一种具有该阀座组件的球阀。

Description

一种阀座组件及具有该阀座组件的球阀 技术领域
本发明涉及阀门技术领域，具体涉及一种阀座组件及具有该阀座组件的球阀。
背景技术
球阀由于具有密封可靠，结构简单，维修方便的特点，成为应用较为广泛的阀门之一。在球阀中，上装式球阀具有外漏点少、无管道应力对中法兰影响、可实现在线维修等优点被广泛应用。
通常阀球通过阀座密封支撑于阀门内，阀座通常安装在阀门内，其轴向端部可设有对其进行支撑和固定的支撑环；支撑环一方面支撑固定阀座阀门在由关闭至逐步打开再关闭的过程中，支撑环与球面接触的位置所受压力较小，支撑环未与球面接触的位置因受介质冲击其所受压力大于与球面接触一侧压力，因此在使用过程中支撑环受到的压力不均，导致其从固定器中脱落，进而导致阀座失去支撑从固定槽中脱离，在阀球转动过程中存在阀座被切断的风险，因此亟待本领域技术人员解决此问题。
发明内容
因此，本发明要解决的技术问题在于克服现有技术中，阀门在由关闭至逐步打开再关闭的过程中，支撑环与球面接触的位置介质压力较小，支撑环未与球面接触的位置的介质压力大于与球面接触的介质压力，因此在使用过程中支撑环受到的压力不均，导致其从固定器中脱落，进而导致阀座无支撑状态，存在阀座被切断的风险，从而提供一种阀座组件，包括：
固定器，安装于球阀壳体内，其轴向一端面设有第一环形槽和第二环形槽，其中所述第一环形槽设于所述第二环形槽靠近阀球的一侧；
阀座，设置在所述第一环形槽内；
支撑环，设置在所述第二环形槽内，所述支撑环包括沿其周向分布的安装部分和至少一个锁紧部分，所述安装部分和所述锁紧部分均包括环本体，所述锁紧部分还包括形成于所述环本体径向内侧的锁扣；
所述第二环形槽包括槽本体和锁槽，所述槽本体适于所述环本体卡入，所述锁槽适于所述锁扣卡入。
进一步地，所述锁扣为形成于所述环本体径向内侧的弧形凸台。
进一步地，所述锁紧部分为一个连续的弧形凸台。
进一步地，所述锁紧部分为一个半圆环形凸台。
进一步地，所述锁紧部分包括若干间隔分段设置的弧形凸台。
进一步地，所述锁槽设于阀球打开过程中所述支撑环受流经介质作用的部位处。
进一步地，所述锁紧部分的轴向截面形状为L型或者T型。
进一步地，所述锁扣的轴向截面为矩形或者正梯形。
进一步地，所述环本体与所述第二环形槽的槽本体过盈配合。
进一步地，所述支撑环采用橡塑材质，所述固定器为橡胶材质。
一种球阀，包括：
壳体，所述壳体内安装有如上所述的一对阀座组件，所述阀座组件内安装 有阀座和支撑环；
阀球，设置在一对阀座以及一对支撑环之间。
进一步地，还包括阀杆，其一端与所述阀球连接并一同转动，其另一端穿过所述壳体并伸出所述壳体之外。
本发明技术方案，具有如下优点：
1.本发明提供的一种阀座组件，包括：固定器，安装于球阀壳体内，其轴向一端面设有第一环形槽和第二环形槽，其中第一环形槽设于所述第二环形槽靠近阀球的一侧；阀座，设置在所述第一环形槽内；支撑环，设置在所述第二环形槽内，所述支撑环包括沿其周向分布的安装部分和至少一个锁紧部分，所述安装部分和所述锁紧部分均包括环本体，所述锁紧部分还包括形成于所述环本体径向内侧的锁扣；所述第二环形槽包括槽本体和锁槽，所述槽本体适于所述环本体卡入，所述锁槽适于所述锁扣卡入。
本发明的阀座组件整体装置结构设计合理，支撑环通过固定器安装在球阀内，给球阀提供稳定的支撑力，同时防止球阀在转动的过程中因为受压的原因导致其被划伤的问题，延长了阀门的使用寿命，将支撑环设置为锁紧部分和安装部分，锁紧部分包括锁扣，在第二环形槽的槽本体上开设锁槽，锁扣与锁槽配合，在同一个支撑环上通过设置锁紧部分提高了支撑环与固定器的结合强度，避免在介质流动过程中支撑环因为受力不均，与流体介质接触的部位受到的力小于其未接触的力的部分，进而导致从固定器中吹出以及阀座被切断的问题；通过设置安装部分有利于支撑环的顺利安装。
2.本发明提供的一种阀座组件中，所述锁紧部分为一个连续的弧形凸台。或者所述锁紧部分包括若干间隔分段设置的弧形凸台；或者所述锁紧部分为一个半圆环形凸台。通过设置凸台增大了支撑环与固定器之间的接触面积，提高了其与固定器之间的结合强度，确保了支撑环与固定器之间的安装的稳定性。
3.本发明提供的一种阀座组件中，所述锁槽设于阀球打开过程中所述支撑环受流经介质作用的部位处。由于支撑环在经介质作用的部位处受介质冲击受力较大，易被流体介质从固定器中吹出脱离，从而引起阀门失效，因此在经介质冲击较大处设有用于安装锁紧部分的锁槽，对支撑环在受冲击力较大部位提高其与固定器的结合强度，即可提高支撑环的安装稳定性。
4.本发明提供的一种阀座组件中，所述支撑环采用橡塑材质，所述固定器为橡胶材质。将支撑环与固定器分别设置为橡塑材质和橡胶材质，提高了支撑环与固定器之间的安装密封性，密封也更加方便。
5.本发明提供的一种球阀，包括：壳体，所述壳体内安装有如上所述的一对阀座组件，所述阀座组件内安装有阀座和支撑环；阀球，设置在一对阀座以及一对支撑环之间。由于该装置采用了上述阀座组件，因此具体上述阀座组件所具有的全部优点。
附图说明
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明的固定器结构示意图；
图2为本发明的固定器沿A-A截面结构示意图；
图3为本发明的固定器沿B-B截面结构示意图；
图4为本发明的支撑环结构示意图；
图5为本发明的支撑环结构侧视图；
图6为本发明的支撑环与固定器安装机构示意图；
图7为本发明的阀座组件与阀球的连接结构示意图；
图8为球阀转动的过程示意图；
附图标记说明：
2、阀球；
3、固定器；31、第一环形槽；32、第二环形槽；321、槽本体；322、锁槽；
4、阀座；5、支撑环；51、环本体；52、锁扣；6、安装部分；7、锁紧部分。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接 相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
实施例
本发明记载了一种球阀，参见图7，所述球阀包括壳体(未在图中示出)、阀球2和阀杆(未在图中示出)，所述壳体1内安装有一对阀座组件，所述阀座组件包括固定器3、阀座4和支撑环5；所述阀球2设置在一对阀座4以及一对支撑环5之间，所述阀杆的一端与所述阀球2连接并一同转动，其另一端穿过所述壳体1并伸出所述壳体1的外端，保证球阀的正常使用。
参见图1至图6，现对本发明提供的一种阀座组件进行说明，所述阀座组件包括固定器3、阀座4和支撑环5，所述支撑环5安装在阀座4和固定器3之间，支撑环5对阀座4起到支撑作用，其中所述阀球2抵接于所述支撑环5的环体上，给阀球提供一个稳定的转动环境，避免阀球与固定器的直接接触，起到了隔离阀球与固定器的作用。
参见附图1，固定器3安装于球阀壳体1内，其靠近阀球的轴向一端面设有第一环形槽31和第二环形槽32，其中第一环形槽31设于所述第二环形槽32靠近阀球2的一侧。本实施例中，所述第一环形槽31与第二环形槽32相邻设置，所述第二环形槽32包括槽本体321和锁槽322，所述阀座4设置在所述第一环形槽31内,所述支撑环5卡入所述第二环形槽32内.
具体的，参见附图8，图8为阀门打开过程示意图，阀门打开时，阀球2受阀杆作用沿图8中逆时针转动，流体介质从图8中右侧通道进入阀球2空腔最终进入左侧通道，在此过程中，位于图8中右侧的固定器的下半部分支撑环和左侧固定器的上半部分支撑环会受到流体介质的冲击，因此在上述支撑环5受流经介质作用的部位处设置有锁扣，并在固定器中对应设有所述锁槽322，用于提高位于受冲击部位的支撑环与固定器的结合强度，确保及时支撑环在开 阀瞬间即使受到较大冲击也不会从第二环线槽中脱落实现了固定器3与支撑环5的稳定安装，降低因流经介质对支撑环的冲击力导致支撑环受介质冲击从固定器中脱落的风险，从而避免阀座失去支撑被切断的风险；提高了阀门的寿命
支撑环5设置在所述第二环形槽32内，所述支撑环5包括沿其周向分布的安装部分6和至少一个锁紧部分7，其中锁紧部分7和安装部分6一体成型；所述安装部分6和所述锁紧部分7均包括环本体51，所述锁紧部分7还包括形成于所述环本体51径向内侧的锁扣52；其中锁扣52与环本体51一体成型。本实施例中，支撑环5的周向指的是支撑环的圆周方向，所述锁扣52为形成于所述环本体51径向内侧的连续的弧形凸台，本实施例中所述弧形凸台为环本体上的半圆形凸台，当然其也不限于设置为半圆形凸台，其也可以为其他任意夹角内的弧形凸台。其中半圆形凸台与所述锁槽的形状相适配，即锁槽也为半圆形锁槽，由此增大了支撑环与固定器之间的接触面积，提高了支撑环与固定器之间的安装的稳定性，安装时，锁扣卡入到第二环形槽的锁槽中，环本体安装在第二环形槽的槽本体内部，环本体与槽本体二者之间过盈配合，采用过盈的安装方式简单、快捷、可靠性高。
作为可替换的实施方式，所述弧形凸台还可在环本体上间隔分段设置。将弧形凸台在环本体上间隔分段设置，在确保支撑环与固定器稳定安装的同时，降低了生产成本，便于市场的推广与使用。
本实施例中，所述锁紧部分的轴向截面形状为L型或者T型。其中，锁紧部分的轴向截面指的是指通过经过支撑环轴线的平面截取锁紧部分获得的截面。
所述支撑环采用橡塑材质，所述固定器为橡胶材质。本实施例中，支撑环和固定器为软性材料，能够很好的将支撑环与固定器之间进行密封，确保整体装置的密封性能。
本发明的阀座组件的安装过程为：
安装支撑环：
先将支撑环的安装部分的环本体卡入安装在固定器的第二环形槽上，然后旋转支撑环，旋转过程中安装部分不脱离第二环形槽，通过旋转锁紧部分的锁扣旋转进入到锁槽中并与锁槽卡合，锁紧部分和安装部分的环本体过盈安装在固定器的槽本体中，锁扣卡入锁槽内，支撑环与固定器安装完成；
安装阀座：
将阀座卡入安装在第一环形槽内；由此完成阀座组件的安装，最后将阀座组件安装在壳体内，将阀球和阀杆分别组装，完成球阀的安装。
本发明的阀座组件整体结构设计合理，密封性好，在导通流体介质时，保证了使用安全，不会因受到流体介质的冲击使得支撑环与固定器分离开以及导致阀座脱离被阀球断裂的情况。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。

Claims (12)

  1. 一种阀座组件，其特征在于，包括：
    固定器，安装于球阀壳体内，其轴向一端面设有第一环形槽和第二环形槽，其中所述第一环形槽设于所述第二环形槽靠近阀球的一侧；
    阀座，设置在所述第一环形槽内；
    支撑环，设置在所述第二环形槽内，所述支撑环包括沿其周向分布的安装部分和至少一个锁紧部分，所述安装部分和所述锁紧部分均包括环本体，所述锁紧部分还包括形成于所述环本体径向内侧的锁扣；
    所述第二环形槽包括槽本体和锁槽，所述槽本体适于所述环本体卡入，所述锁槽适于所述锁扣卡入。
  2. 根据权利要求1所述的一种阀座组件，其特征在于，所述锁扣为形成于所述环本体径向内侧的弧形凸台。
  3. 根据权利要求2所述的一种阀座组件，其特征在于，所述锁紧部分为一个连续的弧形凸台。
  4. 根据权利要求3所述的一种阀座组件，其特征在于，所述锁紧部分为一个半圆环形凸台。
  5. 根据权利要求2所述的一种阀座组件，其特征在于，所述锁紧部分包括若干间隔分段设置的弧形凸台。
  6. 根据权利要求1-5任意一项所述的一种阀座组件，其特征在于，所述锁槽设于阀球打开过程中所述支撑环受流经介质作用的部位处。
  7. 根据权利要求1-5任意一项所述的一种阀座组件，其特征在于，所述锁 紧部分的轴向截面形状为L型或者T型。
  8. 根据权利要求7所述的一种阀座组件，其特征在于，所述锁扣的轴向截面为矩形或者正梯形。
  9. 根据权利要求7所述的一种阀座组件，其特征在于，所述环本体与所述第二环形槽的槽本体过盈配合。
  10. 根据权利要求7所述的一种阀座组件，其特征在于，所述支撑环采用橡塑材质，所述固定器为橡胶材质。
  11. 一种球阀，其特征在于，包括：
    壳体，所述壳体内安装有如权利要求1-8任意一项所述的一对阀座组件，所述阀座组件内安装有阀座和支撑环；
    阀球，设置在一对阀座以及一对支撑环之间。
  12. 根据权利要求11所述的一种球阀，其特征在于，还包括阀杆，其一端与所述阀球连接并一同转动，其另一端穿过所述壳体并伸出所述壳体之外。
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