一种油气田低剪切率注采专用阀门

Abstract

本实用新型提供一种油气田低剪切率注采专用阀门，涉及油气田注采阀门技术领域，包括阀体，所述阀体一侧倾斜连通有输入管，阀体底部可拆卸安装有阀座，阀座内部贯通开设有平滑锥形结构的密封腔，阀体上端安装阀套，阀体内部活动装配有阀杆，阀杆上端固定有螺纹杆，阀杆下端固定有阀芯；所述阀套内部转动安装有传动套，传动套中间开设有螺纹孔，螺纹杆与螺纹孔通过螺纹啮合连接，阀杆中部固定有止旋滑块，阀套内壁开设有轴向滑槽，止旋滑块滑动安装在轴向滑槽内；所述阀座上开设有环形锁紧槽，阀体两侧均铰接有止动卡扣，止动卡扣头部设有圆弧段，转动止动卡扣，其头部圆弧段可卡入环形锁紧槽内，实现阀体与阀座的锁定。

Claims

1. An oil and gas field low shear rate injection and production special valve comprising a valve body (101), characterized in that, The valve body (101) is obliquely communicated with an input pipe (102) on one side, and a valve seat (103) is detachably installed at the bottom of the valve body (101); a smooth conical sealing cavity (104) is defined in the valve seat (103); a valve sleeve (109) is installed on the upper end of the valve body (101); a valve rod (105) is movably assembled in the valve body (101); a threaded rod (107) is fixed to the upper end of the valve rod (105) and located in the valve sleeve (109); and a valve core (106) adapted to the sealing cavity (104) is fixed to the lower end of the valve rod (105). A transmission sleeve (111) is rotatably installed in the valve sleeve (109); a threaded hole is defined in the middle of the transmission sleeve (111); the threaded rod (107) is connected with the threaded hole through thread engagement; a rotation-stopping sliding block (115) is fixed to the middle of the valve rod (105); an axial sliding groove (116) is defined in the inner wall of the valve sleeve (109); and the rotation-stopping sliding block (115) is slidably installed in the axial sliding groove (116). An annular locking groove (120) is defined in the valve seat (103); stop buckles (121) are hingedly connected to the two sides of the valve body (101); the head of each stop buckle (121) is provided with a circular arc segment matched with the annular locking groove (120); and the head of each stop buckle (121) can be clamped into the annular locking groove (120) by rotating the stop buckle (121).

2. The valve according to claim 1, characterized in that: The valve body (101) is cylindrical, and its interior is a through channel; the input pipe (102) is an integrated structure with the valve body (101); the interior channel of the valve body (101) and the interior channel of the input pipe (102) jointly form a smooth Y-shaped fluid channel; and the upper port of the sealing cavity (104) is smoothly connected with the junction of the Y-shaped fluid channel.

3. The valve according to claim 1, characterized in that: A valve plug (108) is installed at the upper port of the valve body (101), and the valve rod (105) penetrates through the valve plug (108).

4. The valve according to claim 1, characterized in that: A first bearing (110) is fixedly installed on the inner wall of the valve sleeve (109); the inner ring of the first bearing (110) is fixedly installed with the transmission sleeve (111); the transmission sleeve (111) is rotatably installed in the valve sleeve (109) through the first bearing (110); a connecting sleeve (112) is butted to the upper end of the valve sleeve (109); the transmission sleeve (111) extends upward into the connecting sleeve (112); a second bearing (113) is installed in the connecting sleeve (112); and the transmission sleeve (111) is rotatably assembled in the connecting sleeve (112) through the second bearing (113).

5. The valve according to claim 4, characterized in that: An electric actuator (114) is butted to the upper portion of the connecting sleeve (112); the output end of the electric actuator (114) is butted to the top end of the transmission sleeve (111); and a controller (117) for receiving signals of an injection and production system and controlling the electric actuator (114) is installed on the outer wall of the valve sleeve (109).

6. The valve according to claim 1, characterized in that: An installation hole is defined in one side of the valve sleeve (109); a transparent scale plate (118) is assembled in the installation hole; scale lines are marked on the scale plate (118); and an arrow mark (119) is arranged on the rotation-stopping sliding block (115) and faces the scale plate (118) and points to the scale lines.

7. The valve according to claim 1, characterized in that: The valve body (101) is fixedly installed with an ear seat (122) on both sides, a pin shaft is assembled on the ear seat (122), and the stop buckle (121) is hinged to the ear seat (122) on both sides of the valve body (101) through the pin shaft.

8. The valve according to claim 1, characterized in that: The outer wall of the valve body (101) is provided with a matching hole penetrating through the valve body (101), and the head of the stop buckle (121) is located in the matching hole.

9. The valve according to claim 1, characterized in that: The two sides of the valve seat (103) are fixedly provided with U-shaped frames (123), the U-shaped frames (123) are provided with locking holes, the bottom end of the stop buckle (121) is provided with a butt joint hole, in the locking state, the lower end of the stop buckle (121) is embedded into the opening of the U-shaped frame (123), the butt joint hole is coaxially aligned with the locking hole, a locking bolt is inserted into the coaxially aligned butt joint hole and locking hole, and the fastening is completed by screwing a nut at the end of the locking bolt.

10. The valve according to claim 3, characterized in that: A plurality of rubber sealing rings (124) are additionally installed on the contact surface of the valve body (101) and the valve seat (103), and a plurality of O-shaped sealing rings are installed on the contact surface of the valve plug (108) and the valve rod (105) and the contact surface of the valve body (101) and the valve plug (108).

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