利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

2 条记录 (耗时 0.008 秒)

    Gate valve
    1.
    发明公开
    Gate valve 失效
    闸阀

    公开(公告)号：EP0400229A1

    公开(公告)日：1990-12-05

    申请号：EP89305439.5

    申请日：1989-05-30

    申请人： 354001 ALBERTA LIMITED

    发明人： Clayson, Peter D

    IPC分类号： F16K27/04 ,  F16K3/12

    CPC分类号： F16K27/044 ,  F16K3/12

    摘要： A high-pressure, high-temperature gate valve uses a flat faced gate 4 seating on a flat and preferably interchangeable seat 6. The gate has a wedge-shape on the upstream side 21 which assists in forcing the seating surfaces together which is highly desirable in high-pressure conditions. The inlet and outlet ports are completely covered in the closed position which enables the valve to withstand extreme pressures. The gate valve further includes a valve stem 10 having a threaded lower end 11 cooperating with a threaded recess in said gate 4, said stem being axially rotatable in a bearing means in said body to raise and lower said gate between said open and closed position, said bearing means including a stuffing box 15, a lower seat and an upper seat through which said stem extends, said stem including an integral collar 12 located between said seats. The upper seat is provided by the stuffing box. The valve body is formed by two members 1a, 1b. The main body part 1a has integral therewith the neck portion 101 containing the bearing means. The cover plate 1b is removably adapted to a side of the main body portion, the cover plate and the main body portion having mating flat surfaces with a trapped seal 30 therebetween in a recess, such that on removal of the cover plate the whole of the interior of the chamber is exposed to permit machining of the interior of the chamber.

    摘要翻译： 高压高温闸门阀使用平面门4安置在平坦且优选可互换的座6上。闸门在上游侧21具有楔形形状，其有助于迫使座位表面一起高度合乎需要 在高压条件下。 入口和出口在关闭位置完全覆盖，使阀门能承受极高的压力。 所述闸阀还包括阀杆10，所述阀杆具有带螺纹的下端11，所述下端11与所述闸门4中的螺纹凹槽配合，所述阀杆在所述阀体中的轴承装置中可轴向旋转，以在所述打开位置和关闭位置之间升高和降低所述闸门， 所述轴承装置包括填料函15，下座和上座，所述杆穿过所述上座，所述杆包括位于所述座之间的整体轴环12。 上座由填料盒提供。 阀体由两个构件1a，1b构成。 主体部分1a与包含轴承装置的颈部101形成一体。 盖板1b可移除地适配于主体部分的一侧，盖板和主体部分具有匹配的平坦表面，其间具有被困密封件30，其中凹陷处于其间，从而在移除盖板时，整个 室的内部暴露以允许加工室的内部。