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CN-224228843-U - Valve seat, fluid end and pump

CN224228843UCN 224228843 UCN224228843 UCN 224228843UCN-224228843-U

Abstract

The application discloses a valve seat, a hydraulic end and a pump, which belong to the technical fields of oil gas and mine exploitation, wherein the valve seat is provided with a first seat end face, a second seat end face and a connecting side face, the first seat end face and the second seat end face are positioned at two opposite ends of the valve seat in the axial direction of the valve seat and are mutually connected through the connecting side face, the valve seat is provided with a first liquid inlet channel, a first port of the first liquid inlet channel is positioned at the connecting side face, the connecting side face comprises a first sealing ring face and a second sealing ring face, the first sealing ring face is positioned between the first port and the first seat end face, the second sealing ring face is positioned between the first port and the second seat end face, and the axis of the first sealing ring face and the axis of the second sealing ring face are arranged in a collinear way. The valve seat can solve the problem that the sealing relationship between the valve seat and the valve box is easy to fail.

Inventors

  • LI XIAOBIN
  • GUAN BAOGUO
  • WEI XIAOSONG
  • SUN YANJING

Assignees

  • 烟台杰瑞石油装备技术有限公司

Dates

Publication Date
20260512
Application Date
20250516

Claims (10)

  1. 1. A valve seat, characterized in that the valve seat is provided with a first seat end surface (213), a second seat end surface (214) and a connecting side surface (215), the first seat end surface (213) and the second seat end surface (214) are positioned at two opposite ends of the valve seat in the axial direction of the valve seat and are mutually connected through the connecting side surface (215), the valve seat is provided with a first liquid inlet channel (220), and a first port (221) of the first liquid inlet channel (220) is positioned at the connecting side surface (215); The connecting side (215) comprises a first sealing ring surface (211) and a second sealing ring surface (212), the first sealing ring surface (211) is positioned between the first port (221) and the first seat end surface (213), the second sealing ring surface (212) is positioned between the first port (221) and the second seat end surface (214), and the axis of the first sealing ring surface (211) and the axis of the second sealing ring surface (212) are arranged in a collinear way.
  2. 2. The valve seat according to claim 1, wherein the number of the first liquid inlet passages (220) is plural, the first ports (221) of each of the plurality of the first liquid inlet passages (220) are located on the connection side surface (215), and the plurality of the first ports (221) are distributed at intervals along the circumferential direction of the connection side surface (215).
  3. 3. The valve seat according to claim 1, characterized in that the valve seat is provided with a first drain channel (240), the side of the first seat end surface (213) and the side of the second seat end surface (214) are communicated by the first drain channel (240), and the first drain channel (240) is disjoint with the first inlet channel (220).
  4. 4. A valve seat according to claim 3, wherein the number of the first drain passages (240) is plural, and the plural first drain passages (240) are distributed at intervals along the circumferential direction of the connecting side surface (215).
  5. 5. The valve seat according to claim 1, characterized in that the valve seat has a first mating concave surface (251), the first mating concave surface (251) being concavely arranged with respect to the first seat end surface (213).
  6. 6. The valve seat according to claim 1, characterized in that the valve seat has a second mating concave surface (252), the second mating concave surface (252) being concavely arranged with respect to the second seat end surface (214).
  7. 7. A fluid end characterized by comprising a valve housing (100) and a valve seat (200) according to any one of claims 1-6, said valve housing (100) being provided with a second inlet channel (171), said valve seat (200) being mounted in said valve housing (100) and said first inlet channel (220) being in communication with said second inlet channel (171).
  8. 8. The fluid end of claim 7, further comprising an adapter plate (710), wherein the number of valve boxes (100) is plural, and wherein the plural valve boxes (100) are distributed along a length direction of the adapter plate (710) and are fixedly connected to the adapter plate (710).
  9. 9. The fluid end of claim 7, further comprising a wear ring (640), wherein the wear ring (640) is sleeved outside the first sealing ring surface (211), an inner side of the wear ring (640) is in sealing connection with the first sealing ring surface (211), and an outer side of the wear ring (640) is in sealing connection with the valve box (100).
  10. 10. A pump comprising a fluid end as claimed in any one of claims 7 to 9.

Description

Valve seat, fluid end and pump Technical Field The application belongs to the technical field of oil gas and mine exploitation, and particularly relates to a valve seat, a hydraulic end and a pump. Background Pumps are commonly used in hydrocarbon production processes and typically include a power end to which power may be transferred to accomplish the pumping and draining operations, and a fluid end. In the present pump, the fluid end includes valve box and disk seat, and the valve box is equipped with the installation cavity, and the disk seat is installed in the installation cavity of valve box, and in the axial of disk seat, the opposite both ends of disk seat all are equipped with the sealing washer for each sealing washer all extrudees between disk seat and valve box along aforementioned axial, in order to provide sealed effect for disk seat and valve box. However, during operation of the fluid end, the valve seat may slightly move relative to the valve housing in the axial direction of the valve seat due to the flow of the liquid, and the valve seat may also rotate relative to the valve housing, so that the sealing ring between the valve seat and the valve housing may fail due to the movement of the valve seat, resulting in failure of the sealing relationship between the valve seat and the valve housing, which may have a great influence on the normal operation of the fluid end. Disclosure of utility model An object of an embodiment of the present application is to provide a valve seat, a fluid end and a pump to solve the problem that the sealing relationship between the valve seat and the valve housing is liable to fail. In a first aspect, an embodiment of the present application discloses a valve seat, where the valve seat has a first seat end surface, a second seat end surface, and a connection side surface, and in an axial direction of the valve seat, the first seat end surface and the second seat end surface are located at opposite ends of the valve seat, and are connected to each other through the connection side surface, the valve seat is provided with a first liquid inlet channel, and a first port of the first liquid inlet channel is located at the connection side surface; The connecting side comprises a first sealing ring surface and a second sealing ring surface, the first sealing ring surface is positioned between the first port and the first seat end surface, the second sealing ring surface is positioned between the first port and the second seat end surface, and the axis of the first sealing ring surface and the axis of the second sealing ring surface are arranged in a collinear manner. In a second aspect, an embodiment of the present application discloses a fluid end, which includes a valve housing and the valve seat, where the valve housing is provided with a second fluid intake channel, the valve seat is installed in the valve housing, and the first fluid intake channel is communicated with the second fluid intake channel. In a third aspect, embodiments of the present application disclose a pump comprising a fluid end as described above. The embodiment of the application discloses a valve seat which can be matched with a valve box so as to be applied to a hydraulic end of a pump, wherein a first seat end face and a second seat end face of the valve seat are positioned at two opposite ends of the valve seat along the axial direction of the valve seat, the first seat end face and the second seat end face are connected with each other through a connecting side face, and a first end opening of a first liquid inlet channel of the valve seat extends and is positioned at the connecting side face so that the first liquid inlet channel of the valve seat can be communicated with a corresponding second liquid inlet channel on the valve box. In order to ensure that the first liquid inlet channel and the second liquid inlet channel are communicated with each other, and meanwhile, the second liquid inlet channel and the second liquid outlet channel on the valve box can be kept in an isolated state, in the valve seat disclosed by the embodiment of the application, the connecting side surface comprises a first sealing ring surface and a second sealing ring surface, the first sealing ring surface is positioned between the first port and the first seat end surface, and the second sealing ring surface is positioned between the first port and the second seat end surface, of course, the first liquid outlet channel of the valve seat and the second liquid outlet channel of the valve box are both positioned outside a space enclosed between the first sealing ring surface and the second sealing ring surface, and under the sealing effect provided by the first sealing ring surface and the second sealing ring surface, the second liquid inlet channel of the valve box can be communicated with the first liquid inlet channel of the valve seat, and the second liquid inlet channel of the valve box can be mutually isolat