WO2021143494A1 - 一种固定球阀 - Google Patents

一种固定球阀 Download PDF

Info

Publication number
WO2021143494A1
WO2021143494A1 PCT/CN2020/139607 CN2020139607W WO2021143494A1 WO 2021143494 A1 WO2021143494 A1 WO 2021143494A1 CN 2020139607 W CN2020139607 W CN 2020139607W WO 2021143494 A1 WO2021143494 A1 WO 2021143494A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve body
valve
ball
fixed
cavity
Prior art date
Application number
PCT/CN2020/139607
Other languages
English (en)
French (fr)
Inventor
杨昭斌
王强
Original Assignee
苏州纽威阀门股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州纽威阀门股份有限公司 filed Critical 苏州纽威阀门股份有限公司
Publication of WO2021143494A1 publication Critical patent/WO2021143494A1/zh

Links

Images

Classifications

    • 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
    • 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
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K27/10—Welded housings
    • F16K27/107—Welded housings for taps or cocks
    • 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 ball valves, in particular to a fixed ball valve.
  • the fixed ball valve is a medium used for long-distance and industrial pipeline transportation, and it is required to have high sealing performance and good reliability.
  • the fixed ball valve With the development of economy and valve technology, more and more fixed ball valves with fully welded body are used in pipeline transportation. Compared with traditional ball valves, fully welded fixed ball valves have improved the sealing performance and reliability of ball valves to a certain extent.
  • the existing fully welded fixed ball valve also has other problems, such as complex structure, many welds, and easy to cause leakage; no welding slag, welding gas discharge structure, welds are prone to slag holes and pores, which affect the welding strength, and are easy to Stress concentration is generated, stress cracks are easily generated, which affects the service life of the ball valve; uneven welding heating produces valve body deformation and the heat generated will also deform the non-metallic seal in the ball valve, and the internal seal of the ball valve is prone to gaps, which affects the ball valve. Sealing performance.
  • the existing all-welded fixed ball valve stem is designed to prevent blow-out.
  • the technical problem to be solved by the present invention is to overcome the complex structure of the fixed ball valve in the prior art, which has many welds and is easy to produce leaks, so as to provide a fixing with simple structure, fewer welds and less leaks. Ball valve.
  • a fixed ball valve including a first valve body; a second valve body connected to the first valve body; a ball mounted on the first valve body and the seat In the first cavity formed after the second valve body is connected, the first fixed end of the ball is positioned and fixed by the valve stem, and the second fixed end of the ball is positioned and fixed by the positioning assembly; the positioning assembly and the The ball is inserted into the first cavity position from the open end of the first valve body or the second valve body.
  • the positioning assembly is clamped and fixed by the first valve body and the second valve body.
  • the first valve body has a positioning step
  • the positioning component abuts the positioning step after being installed in the cavity position
  • the second valve body has a positioning step that extends into the opening end. The abutting end abutting with the positioning component.
  • the positioning assembly and the sphere are connected in rotation.
  • the positioning assembly includes a support plate, the support plate has a connection hole coaxial with the valve stem, the second fixed end of the ball is matched with the support plate, and the second fixed end
  • the upper part is provided with a columnar protrusion extending into the connecting hole, and the protrusion and the connecting hole are connected by a first bearing.
  • the bottom end of the support plate is provided with a sewage drain, and the sewage drain communicates with the outside through a sewage channel on the first valve body.
  • the first valve body and the second valve body are connected by welding, and there is a second cavity after the connection, and the second cavity is close to the connection between the first valve body and the second valve body
  • the second cavity is provided with a sewage hole communicating with the sewage channel.
  • the contact point between the first valve body and the second valve body is provided with a weld groove for butt welding along the outer ring, and the bottom of the weld groove is located in the annular second cavity.
  • a first mounting hole for the valve stem to penetrate is installed on the first valve body, and the positioning step is mounted on a side of the first cavity away from the mounting hole.
  • the hole wall of the first mounting hole has a limit step arranged inwardly along the diameter of the first mounting hole, the valve stem is provided with a shaft step, and the shaft step is located at the limit position. The side of the step close to the sphere.
  • a second bearing is installed between the valve stem and the first mounting hole, and the second bearing is located on a side of the limit step close to the sphere.
  • it further includes a gland installed on the first valve body, the gland is provided with a second mounting hole for the valve stem to penetrate, between the second mounting hole and the valve stem A third bearing is provided.
  • the beneficial effects of the present invention are: the present invention has simple structure, fewer welds, and is not easy to produce leaks; the present invention is provided with welding slag and welding gas drainage channels, which can effectively reduce stress concentration and welding deformation. Improve the service life of the ball valve.
  • FIG. 1 is a schematic diagram of a cross-sectional view of a fixed ball valve according to an embodiment of the present invention
  • the fixed ball valve includes a first valve body 1, a second valve body 2, a ball 3, and a valve seat assembly 27.
  • the first valve body 1 and the second valve body 2 After connection, the first cavity 4 is formed, and the sphere 3 is installed in the first cavity 4.
  • the first valve body 1 encloses the main part of the first cavity 4, the first valve body has an open end, and the second valve body 2 forms the first cavity after closing the open end. body.
  • the ball 3 has a first fixed end 5 and a second fixed end 7.
  • the first fixed end 5 and the second fixed end 7 are respectively located at two ends of the ball 3, and the first fixed end 5 passes through the valve stem 6. It is fixed in the first valve body 1, and the second fixed end 7 is fixed on the first valve body 1 through a valve seat assembly 27.
  • the first fixed end 5 of the ball 3 is provided with a groove in the shape of a letter, and the lower end of the valve stem 6 is inserted into the groove in the shape of a letter.
  • the first valve body 1 is equipped with a first mounting hole 20 through which the valve stem 6 passes.
  • the hole wall of the first mounting hole 20 is provided with a limit step 21 along the diameter inwardly to cooperate with the upper shaft step 22 of the valve stem 6 to achieve The axial positioning of the valve stem 6, and a gasket is provided between the axial step 22 and the limit step 21 on the valve stem 6 to form an anti-blow-out structure of the valve stem 6 to prevent the valve stem 6 from being blown out under high medium pressure The risk; compared with the existing valve stem 6 anti-blow structure design, simple and reliable.
  • the lower end of the valve stem 6 and the first mounting hole 20 are rotatably connected through the second bearing 23.
  • An O-ring seal is provided on the valve stem 6 between the gasket and the second bearing 23 to strengthen the valve stem 6 and the first mounting hole. 20's sealing performance.
  • the first valve body 1 is also provided with a gland 24, and the gland 24 is provided with a second mounting hole 25.
  • the upper end of the valve stem 6 passes through the second mounting hole 25, and is connected to the second mounting hole 25 through a third bearing 26 for rotation. ;
  • the lower end surface of the gland 24 is crimped with a sealing gasket, so that the sealing gasket and the valve stem 6 are tightly combined.
  • the valve stem 6 realizes the dual bearing support of the valve stem 6 through the second bearing 23 and the third bearing 26, which improves the support rigidity of the valve stem 6 and reduces the valve opening and closing resistance.
  • the first valve body 1 has a positioning step 9, the positioning component 8 is inserted into the cavity position from the open end to abut the positioning step 9, and the second valve body 2 has an extension The abutting end 10 that enters the opening end and abuts the positioning assembly 8. After the first valve body 1 and the second valve body 2 are fixedly connected, the positioning assembly 8 is replaced by the first valve body 1 and the second valve body 2 are clamped and fixed.
  • the positioning assembly 8 and the ball 3 are connected in rotation.
  • the positioning assembly 8 includes a support plate 11 having a connecting hole 12 coaxial with the valve stem 6, and the second fixed end 7 of the ball 3 is matched with the support plate 11, so
  • the second fixed end 7 has a cylindrical protrusion 13 extending into the connecting hole 12, the protrusion 13 and the connecting hole 12 are connected by a first bearing 14, and the protrusion 13 passes through the connecting hole 12
  • the first bearing 14 realizes a rotational connection, and the connecting hole 12 is coaxial with the valve stem 6.
  • the positioning assembly 8 that fixes the second fixed end 7 can be inserted into the first cavity 4 from the open end of the first valve body with the ball 3, there is no need to provide a separate installation channel, which is relative to the existing
  • only the first valve body 1 and the second valve body 2 can be connected to form the valve body of the fixed ball valve.
  • it can avoid The cover plate of the pivot is welded, so as to avoid leakage points caused by the cover plate welding seam, so that the structure is simple, the welding seam is less, and the leakage point is not easy to occur.
  • the first valve body 1 and the second valve body 2 are connected by butt welding.
  • a weld groove 19 for butt welding is provided along the outer ring where the first valve body 1 and the second valve body 2 contact, near the butt welding connection.
  • a second cavity 17 is provided, and the bottom of the weld groove 19 is located in the annular second cavity 17.
  • the lower end of the support plate 11 and the lower end of the first valve body 1 are respectively provided with a sewage groove 15 and a sewage channel 16.
  • the sewage groove 15 communicates with the outside through the sewage channel 16, and the second cavity 17 is provided with the sewage channel 16 The drain hole 18.
  • the generated welding slag and welding gas can pass through in time
  • the drain channel 16 on the first valve body 1 is discharged, which can effectively reduce stress concentration and welding deformation, and improve the service life of the fixed ball valve.
  • the entire fixed ball valve has only one welding seam between the first valve body 1 and the second valve body 2. Compared with the existing fixed ball valve, the structure is simple, the welding seam is less, and the leakage is not easy to occur.
  • the main assembly process of this embodiment is as follows: first install the first set of valve seat assemblies 27 into the first valve body 1, and then insert the valve stem 6 into the first mounting hole 20 in the first valve body 1; 3 is combined with the positioning assembly 8 and installed in the first valve body 1.
  • the ball 3 is close to the first set of valve seat assembly 27 to form a sealing pair with the first set of valve seat assembly 27, and the upper end is clamped with the valve stem 6, thereby Realize the positioning of the ball 3 in the axial direction of the valve stem 6; then put the first set of valve seat assemblies 27 into the first valve body 1 and insert the first valve body 1, so that the second set of valve seat assemblies 27 and the ball 3
  • a sealing pair is formed on the side close to the second valve seat assembly 27;
  • the positioning assembly 8 is clamped and fixed by the first valve body 1 and the second valve body 2, and then the first valve body 1 and the second valve body 2 are welded together
  • the gland 24 is fixed on the first valve body 1 with screws to complete the assembly of this embodiment.

Landscapes

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

Abstract

一种固定球阀；其包括第一阀体(1)和第二阀体(2)，第二阀体(2)与第一阀体(1)焊接；球体(3)安装在第一阀体(1)和第二阀体(2)焊接后形成的第一腔体(4)中，球体(3)通过阀杆(6)和定位组件(8)实现固定定位；第一阀体(1)和第二阀体(2)设有排出焊渣、焊气的排污通道(16)；阀杆(6)采用双轴承(23,26)支撑；阀杆(6)上的轴阶(22)与第一阀体(1)的第二安装孔(25)上的限位台阶(21)构成阀杆(6)防吹出结构。该球阀结构简单、焊缝较少、不易产生漏点；焊渣、焊气排污通道(16)，可以有效减少应力集中和焊接变形，提高球阀使用寿命；防吹出结构简单可靠；阀杆(6)的双轴承(23,26)支撑，提高阀杆(6)支撑刚度，减少阀门启闭阻力。

Description

一种固定球阀 技术领域
本发明涉及球阀技术领域，具体涉及一种固定球阀。
背景技术
固定球阀是一种用于长输和工业管线的介质输送，要求其具有很高的密封性能、很好的可靠性。随着经济和阀门技术的发展，管线输送领域越来越多采用全焊接阀体的固定球阀，全焊接固定球阀相对于传统球阀在一定程度上提高了球阀的密封性能和可靠性。但是现有全焊接固定球阀也存在其他问题，如结构复杂，焊缝较多，易产生漏点；无焊渣、焊气排出结构，焊缝易产生渣孔、气孔，影响焊接强度，也易产生应力集中，易产生应力裂纹，影响球阀的使用寿命；焊接受热不均匀产生阀体变形以及产生的热量也会使球阀内的非金属密封产生变形，球阀内部密封处易产生间隙，影响球阀的密封性能。现有全焊接固定球阀阀杆防吹设计，多采用压盖上的轴肩抵接填料箱，填料箱抵接阀杆，结构复杂，固定压盖和填料箱的螺钉、螺栓等紧固件受剪切失效，阀杆有被介质压力吹出的安全隐患。同时现有全焊接固定球阀阀杆上没有安装轴承或者安装有单个轴承，当球阀内介质力较大时，推动球体，易把推力传递给与球体连接的阀杆，阀杆产生倾斜，使阀杆与阀体、密封件产生较大摩擦力，导致阀门启闭力增大。
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固定球阀结构复杂，焊缝较多，易产生漏点等缺陷，从而提供一种结构简单、焊缝较少、 不易产生漏点的固定球阀。
为实现上述目的，本发明提供如下技术方案：一种固定球阀，包括，第一阀体；第二阀体，与所述第一阀体连接；球体，安装在所述第一阀体和所述第二阀体连接后形成的第一腔体中，所述球体的第一固定端通过阀杆定位固定，所述球体的第二固定端通过定位组件定位固定；所述定位组件与所述球体从所述第一阀体或所述第二阀体的开口端装入所述第一腔体位置。
优选的，所述定位组件由所述第一阀体和所述第二阀体夹持固定。
优选的，所述第一阀体上具有定位台阶，所述定位组件装入所述腔体位置后与所述定位台阶抵接，所述第二阀体上具有伸入所述开口端内的与所述定位组件抵接的抵接端。
优选的，所述定位组件和所述球体之间转动连接。
优选的，所述定位组件包括支撑板，所述支撑板上具有与所述阀杆同轴的连接孔，所述球体的第二固定端与所述支撑板相配合，所述第二固定端上具有伸入所述连接孔内的柱状凸起，所述凸起和所述连接孔之间通过第一轴承连接。
优选的，所述支撑板下端开设有排污槽，所述排污槽通过所述第一阀体上的排污通道与外部连通。
优选的，所述第一阀体和所述第二阀体焊接连接，且连接后具有第二腔体，所述第二腔体靠近所述第一阀体和所述第二阀体的连接处设置，所述第二腔体上具有与排污通道连通的排污孔。
优选的，所述第一阀体和所述第二阀体接触处沿外圈设置有用于对接焊的焊缝坡口，焊缝坡口底部位于环形的所述第二腔体中。
优选的，所述第一阀体上安装有供所述阀杆穿设的第一安装孔，所述定位台阶安装在所述第一腔体内远离所述安装孔的一侧。
优选的，所述第一安装孔的孔壁上具有沿所述第一安装孔的直径向内设置的限位台阶，所述阀杆上设有轴阶，所述轴阶位于所述限位台阶的靠近所述球体的一侧。
优选的，所述阀杆和所述第一安装孔之间安装有第二轴承，所述第二轴承位于所述限位台阶的靠近所述球体的一侧。
优选的，还包括安装在所述第一阀体上的压盖，所述压盖上具有供所述阀杆穿设的第二安装孔，所述第二安装孔和所述阀杆之间设置有第三轴承。
与现有技术相比，本发明的有益效果是：本发明结构简单、焊缝较少、不易产生漏点；本发明设有焊渣、焊气排污通道，可以有效减少应力集中和焊接变形，提高球阀使用寿命。
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为本发明的一种实施方式的固定球阀剖视图的示意图；
附图标记说明：
1-第一阀体；2-第二阀体；3-球体；4-第一腔体；5-第一固定端；6-阀杆；7-第二固定端；8-定位组件；9-定位台阶；10-抵接端；11-支撑板；12-连接孔；13-凸起；14-第一轴承；15-排污槽；16-排污通道；17-第二腔体；18-排污孔；19-焊缝坡口；20-第一安装孔；21-限位台阶；22-轴阶；23-第二轴承；24-压盖；25-第二安装孔；26-第三轴承；27-阀座组件。
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。
此外，下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
如图1所示为其一种具体实施方式，固定球阀包括第一阀体1、第二阀体2、球体3和阀座组件27，所述第一阀体1和所述第二阀体2连接后形成第一腔体4，球体3安装在第一腔体4中。
本实施例中，第一阀体1围成所述第一腔体4的主要部分，第一阀体上具有开口端，所述第二阀体2封闭该开口端后形成所述第一腔体。
球体3具有第一固定端5和第二固定端7，所述第一固定端5和所述第二固定端7分别位于所述球体3的两端，且第一固定端5通过阀杆6固定在第一阀体1中，所述第二固定端7通过阀座组件27固定在第一阀体1上。
球体3的第一固定端5上设有一字凹槽，阀杆6下端插入一字凹槽中。第一阀体1上安装有供阀杆6穿设的第一安装孔20，第一安装孔20的孔壁上沿直径向内设置有限位台阶21与阀杆6上轴阶22配合，实现阀杆6的轴向定位，同时在阀杆6上的轴阶22与限位台阶21之间设有垫片，构成阀杆6防吹出结构，避免在高介质压力下阀杆6的被吹出的风险；相对于现有的阀杆6防吹结构设计，简单可靠。阀杆6下端与第一安装孔20通过第二轴承23实现转动连接，在垫片与第二轴承23之间的阀杆6上设有O形密封圈，增强阀杆6与第一安装孔20的密封性能。第一阀体1上还设有压盖24，压盖24设有第二安装孔25，阀杆6上端穿过第二安装孔25，与第二安装孔25通过第三轴承26实现转动连接；压盖24下端面压接有密封垫片，使密封垫片与阀杆6紧密结合。阀杆6通过第二轴承23和第三轴承26实现阀杆6双轴承支撑，提高阀杆6支撑刚度，减少阀门启闭阻力。
所述第一阀体1上具有定位台阶9，所述定位组件8从所述开口端装入所述腔体位置后与所述定位台阶9抵接，所述第二阀体2上具有伸入所述开口端内的与所述定位组件8抵接的抵接端10，在将第一阀体1和第二阀体2固定连接后，所述定位组件8由所述第一阀体1和所述第二阀体2夹持固定。
本实施例中，所述定位组件8和所述球体3之间为转动连接。所述定位组件8包括支撑板11，所述支撑板11上具有与所述阀杆6同轴的连接孔12，所述球体3的第二固定端7与所述支撑板11相配合，所述第二固定端7上具有伸入所述连接孔12内的柱状凸起13，所述凸起13和所述连接孔12之间通过第一轴承14连接，凸起13与连接孔12通过第一轴承14实现转动连接，所述连接孔12与阀杆6同轴。
通过对球体3的第一固定端5和第二固定端7的定位固定，实现了球体3的沿阀杆6轴向方向的定位。由于固定第二固定端7的所述定位组件8能够与所述球体3从所述第一阀体的开口端装入所述第一腔体4位置，不 需要单独设置安装通道，相对于现有的使用枢轴的固定球阀来说，仅由第一阀体1和第二阀体2连接后即可组成固定球阀的阀体，相对于现有技术中使用枢轴的连接方式，可以避免枢轴的盖板焊接，从而避免盖板焊缝产生的外漏点，使得结构简单、焊缝较少、不易产生漏点。
第一阀体1与第二阀体2通过对接焊连接，在第一阀体1与第二阀体2接触处沿外圈设置有用于对接焊的焊缝坡口19，靠近对接焊连接处设置有第二腔体17，焊缝坡口19底部位于环形的第二腔体17中。在定位组件8中支撑板11下端和第一阀体1下端分别设有排污槽15和排污通道16，排污槽15通过排污通道16与外部连通，第二腔体17上具有与排污通道16连通的排污孔18。通过上述设置可实现第二腔体17、排污槽15、排污通道16相互贯通，当把第一阀体1与第二阀体2对接焊连接时，产生的焊渣、焊气通过能够及时通过第一阀体1上的排污通道16排出，可以有效减少应力集中和焊接变形，提高固定球阀使用寿命。整个固定球阀只有第一阀体1与第二阀体2之间的一条焊缝，相对于现有固定球阀，结构简单、焊缝较少、不易产生漏点。
本实施例的主要装配过程如下：首先把第一组阀座组件27装入第一阀体1中，然后阀杆6贯穿装入第一阀体1中的第一安装孔20；再把球体3和定位组件8组合，装入第一阀体1中，球体3靠近第一组阀座组件27一侧与第一组阀座组件27形成密封副，上端与阀杆6卡接，从而可实现球体3的沿阀杆6轴向方向的定位；然后把第一组阀座组件27装入第一阀体1组合，插入第一阀体1，使第二组阀座组件27与球体3靠近第二组阀座组件27一侧形成密封副；使定位组件8由第一阀体1与第二阀体2夹持固定，再把第一阀体1与第二阀体2焊接在一起，最后用螺钉把压盖24固定在第一阀体1上，完成本实施例的装配。
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. 一种固定球阀，包括，
    第一阀体(1)；
    第二阀体(2)，与所述第一阀体(1)连接；
    球体(3)，安装在所述第一阀体(1)和所述第二阀体(2)连接后形成的第一腔体(4)中，所述球体(3)的第一固定端(5)通过阀杆(6)定位固定，所述球体(3)的第二固定端(7)通过定位组件(8)定位固定；
    其特征在于，
    所述定位组件(8)与所述球体(3)从所述第一阀体(1)或所述第二阀体(2)的开口端装入所述第一腔体(4)位置。
  2. 根据权利要求1所述的固定球阀，其特征在于，所述定位组件(8)由所述第一阀体(1)和所述第二阀体(2)夹持固定。
  3. 根据权利要求2所述的固定球阀，其特征在于，所述第一阀体(1)上具有定位台阶(9)，所述定位组件(8)装入所述腔体位置后与所述定位台阶(9)抵接，所述第二阀体(2)上具有伸入所述开口端内的与所述定位组件(8)抵接的抵接端(10)。
  4. 根据权利要求1-3中任一项所述的固定球阀，其特征在于，所述定位组件(8)和所述球体(3)之间转动连接。
  5. 根据权利要求4所述的固定球阀，其特征在于，所述定位组件(8)包括支撑板(11)，所述支撑板(11)上具有与所述阀杆(6)同轴的连接孔(12)，所述球体(3)的第二固定端(7)与所述支撑板(11)相配合，所述第二固定端(7)上具有伸入所述连接孔(12)内的柱状凸起(13)，所述凸起(13)和所述连接孔(12)之间通过第一轴承(14)连接。
  6. 根据权利要求5所述的固定球阀，其特征在于，所述支撑板(11)下端开设有排污槽(15)，所述排污槽(15)通过所述第一阀体(1)上的排污通道(16)与外部连通。
  7. 根据权利要求1-6中任一项所述的固定球阀，其特征在于，所述第一阀体(1)和所述第二阀体(2)焊接连接，且连接后具有第二腔体(17)，所述第二腔体(17)靠近所述第一阀体(1)和所述第二阀体(2)的连接处设置，所述第二腔体(17)上具有与排污通道(16)连通的排污孔(18)。
  8. 根据权利要求7所述的固定球阀，其特征在于，所述第一阀体(1)和所述第二阀体(2)接触处沿外圈设置有用于对接焊的焊缝坡口(19)，焊缝坡口(19)底部位于环形的所述第二腔体(17)中。
  9. 根据权利要求1-8中任一项所述的固定球阀，其特征在于，所述第一阀体(1)上安装有供所述阀杆(6)穿设的第一安装孔(20)，所述定位台阶(9)安装在所述第一腔体(4)内远离所述安装孔的一侧。
  10. 根据权利要求9所述的固定球阀，其特征在于，所述第一安装孔(20)的孔壁上具有沿所述第一安装孔(20)的直径向内设置的限位台阶(21)，所述阀杆(6)上设有轴阶(22)，所述轴阶(22)位于所述限位台阶(21)的靠近所述球体(3)的一侧。
  11. 根据权利要求10所述的固定球阀，其特征在于，所述阀杆(6)和所述第一安装孔(20)之间安装有第二轴承(23)，所述第二轴承(23)位于所述限位台阶(21)的靠近所述球体(3)的一侧。
  12. 根据权利要求11所述的固定球阀，其特征在于，还包括安装在所述第一阀体(1)上的压盖(24)，所述压盖(24)上具有供所述阀杆(6)穿设的第二安装孔(25)，所述第二安装孔(25)和所述阀杆(6)之间设置有第三轴承(26)。
PCT/CN2020/139607 2020-01-16 2020-12-25 一种固定球阀 WO2021143494A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010047183.8 2020-01-16
CN202010047183.8A CN111089184A (zh) 2020-01-16 2020-01-16 一种固定球阀

Publications (1)

Publication Number Publication Date
WO2021143494A1 true WO2021143494A1 (zh) 2021-07-22

Family

ID=70399429

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/CN2020/103820 WO2021143091A1 (zh) 2020-01-16 2020-07-23 一种固定球阀
PCT/CN2020/139607 WO2021143494A1 (zh) 2020-01-16 2020-12-25 一种固定球阀

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/103820 WO2021143091A1 (zh) 2020-01-16 2020-07-23 一种固定球阀

Country Status (2)

Country Link
CN (1) CN111089184A (zh)
WO (2) WO2021143091A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111089184A (zh) * 2020-01-16 2020-05-01 苏州纽威阀门股份有限公司 一种固定球阀
CN114278756B (zh) * 2021-11-25 2024-03-29 中国船舶重工集团公司第七二五研究所 一种内嵌式球体支撑结构的双联球阀

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050269542A1 (en) * 2004-06-04 2005-12-08 Scaramucci John P Bearing retainer for trunnion mounted ball valve
US20090095931A1 (en) * 2007-10-15 2009-04-16 Stunkard Gerald A Ball valve having self-centering seats
CN201262250Y (zh) * 2008-09-12 2009-06-24 江苏盐电阀门有限公司 一种金属硬密封球阀
CN204153198U (zh) * 2014-08-25 2015-02-11 大唐内蒙古多伦煤化工有限责任公司 球阀
CN105715820A (zh) * 2016-04-28 2016-06-29 苏州纽威阀门股份有限公司 球阀
CN205715778U (zh) * 2016-06-16 2016-11-23 五洲阀门股份有限公司 一种高温高压硬密封球阀
CN111089184A (zh) * 2020-01-16 2020-05-01 苏州纽威阀门股份有限公司 一种固定球阀
CN212055930U (zh) * 2020-01-16 2020-12-01 苏州纽威阀门股份有限公司 一种固定球阀

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5901946A (en) * 1998-05-08 1999-05-11 Lei-Jui; Wu Ball valve seat
US7712797B2 (en) * 2005-10-07 2010-05-11 Grundfos Pumps Corporation Universal fluid coupling assembly with interchangeable fitting members
CN202790635U (zh) * 2012-07-18 2013-03-13 江苏理想阀门有限公司 硬密封球阀
CN205781000U (zh) * 2016-05-27 2016-12-07 成都成高阀门有限公司 内置式多阀座球形全焊接球阀
CN207093835U (zh) * 2017-08-24 2018-03-13 浙江欧德隆自控阀门有限公司 一种排污气动球阀

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050269542A1 (en) * 2004-06-04 2005-12-08 Scaramucci John P Bearing retainer for trunnion mounted ball valve
US20090095931A1 (en) * 2007-10-15 2009-04-16 Stunkard Gerald A Ball valve having self-centering seats
CN201262250Y (zh) * 2008-09-12 2009-06-24 江苏盐电阀门有限公司 一种金属硬密封球阀
CN204153198U (zh) * 2014-08-25 2015-02-11 大唐内蒙古多伦煤化工有限责任公司 球阀
CN105715820A (zh) * 2016-04-28 2016-06-29 苏州纽威阀门股份有限公司 球阀
CN205715778U (zh) * 2016-06-16 2016-11-23 五洲阀门股份有限公司 一种高温高压硬密封球阀
CN111089184A (zh) * 2020-01-16 2020-05-01 苏州纽威阀门股份有限公司 一种固定球阀
CN212055930U (zh) * 2020-01-16 2020-12-01 苏州纽威阀门股份有限公司 一种固定球阀

Also Published As

Publication number Publication date
CN111089184A (zh) 2020-05-01
WO2021143091A1 (zh) 2021-07-22

Similar Documents

Publication Publication Date Title
WO2021143494A1 (zh) 一种固定球阀
RU2580992C2 (ru) Уплотнение шарового поплавкового клапана с сильфоном и с-образным уплотнением
JP5623734B2 (ja) 高圧燃料配管用継ぎ手の改良
CN108953625B (zh) 实现对阀总成的可靠密封的蝶阀布置
CN202914935U (zh) 一种扩口法兰结构
CN212055930U (zh) 一种固定球阀
CN216590386U (zh) 一种免钢管焊接的密封接头结构
JP2012127400A (ja) 三重偏心バタフライ弁
CN204533566U (zh) 四偏心双向密封蝶阀
US11519509B2 (en) Valve with unobstructed flow path having increased flow coefficient
EP2546559B1 (en) Shuttle-typed high-temperature and high-pressure weldable check valve
CN209622192U (zh) 一种波纹管组件及一种阀门
US11841089B2 (en) Valve with unobstructed flow path having increased flow coefficient
WO2021042901A1 (zh) 一种阀座组件及具有该阀座组件的球阀
CN103307302A (zh) 一种上装式低温浮动球阀
CN205079616U (zh) 用于冶金炉的管道连接结构及冶金炉
CN101198816B (zh) 截止装置
CN210859968U (zh) 全焊接闸阀
CN219912103U (zh) 一种接口连接结构
CN220523386U (zh) 一种阀盖、截止阀及止回阀
CN214466230U (zh) 一种耐高压密封性好的中部焊接闸阀
CN110701336A (zh) 一种海工斜面偏心超低温球阀
CN109538819A (zh) 一种波纹管组件及一种阀门
CN218294836U (zh) 一种高温高压石油化工泵的泵体排液管路结构
CN217874302U (zh) 锻钢全焊接球阀

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20913813

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20913813

Country of ref document: EP

Kind code of ref document: A1