FC valve with sealing structure for oil exploitation

Abstract

The utility model discloses an FC valve with a sealing structure for oil exploitation, and belongs to the technical field of FC valves, the FC valve with the sealing structure for oil exploitation comprises a valve body, a threaded rod is movably arranged in the center of the top of the valve body, and a sealing assembly is arranged at the bottom of the threaded rod; the sealing assembly comprises a lifting sleeve connected to the outer side of the threaded rod in a threaded mode, a sealing disc installed at the bottom of the lifting sleeve, a bearing base arranged at the bottom of the inner side of the valve body and matched with the sealing disc, and a sealing piece arranged between the bearing base and the top wall of the inner side of the valve body. The sealing piece comprises a transmission unit arranged at the bottom of the bearing seat and a sealing sleeve arranged on the outer side of the transmission unit, a containing groove is formed in the top face of the bearing seat, and the sealing sleeve is movably arranged in the containing groove; the bottom longitudinal section of the sealing disc is of a conical structure. Through the arrangement of the sealing assembly, the sealing effect of the valve body is improved, and oil leakage is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to FC valve technical field, especially a FC valve with sealing structure for oil exploitation. BACKGROUND

[0002] Oil, also known as crude oil, is a brown-black combustible viscous liquid mined from deep underground, which is mainly a mixture of various alkanes, naphthenes and aromatic hydrocarbons. It is a mixture formed by ancient marine or lake organisms after a long evolution, and is a fossil fuel like coal. FC valve is used to control flow in the process of oil exploitation. FC valve is a control component in oil conveying system, which has the functions of cutting off, regulating, guiding flow, preventing reverse flow, stabilizing pressure, dividing flow or overflow pressure relief, etc. FC valve used in oil control system has a variety of types and specifications from the simplest stop valve to the most complex automatic control system.

[0003] The existing FC valve generally comprises a FC valve body, an upper mold fixed on the FC valve body, and a runner fixed on the upper mold. The upper mold is fixed with the FC valve body through fixing bolts, and a limiting device is arranged on the fixing bolts. A replacement device is arranged on the outer wall of the upper mold. The existing valve core is a single lifting block, and the actual sealing effect is not good. When the valve is closed, the sealing ring on the surface of the valve core is easily squeezed out, further reducing the sealing performance.

[0004] Therefore, it is urgent to provide a FC valve with sealing structure for oil exploitation to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model wants to overcome the technical problem of the prior art that the FC valve generally comprises a FC valve body, an upper mold fixed on the FC valve body, and a runner fixed on the upper mold. The upper mold is fixed with the FC valve body through fixing bolts, and a limiting device is arranged on the fixing bolts. A replacement device is arranged on the outer wall of the upper mold. The existing valve core is a single lifting block, and the actual sealing effect is not good. When the valve is closed, the sealing ring on the surface of the valve core is easily squeezed out, further reducing the sealing performance. A FC valve with sealing structure for oil exploitation is provided.

[0006] To solve the above technical problems, one technical scheme of the utility model is to provide a FC valve with sealing structure for oil exploitation, which comprises a valve body, a threaded rod movably arranged at the top center of the valve body, and a sealing assembly arranged at the bottom of the threaded rod.

[0007] The sealing assembly comprises a lifting sleeve threadedly connected to the outer side of the threaded rod, a sealing disc mounted at the bottom of the lifting sleeve, a receiving seat adapted to the sealing disc and arranged at the inner bottom of the valve body, and a sealing member arranged between the receiving seat and the inner top wall of the valve body.

[0008] The bottom longitudinal section of the sealing disc is in a conical structure.

[0009] The utility model further sets up: the both sides of valve body all are provided with connecting hole, the hole wall of connecting hole is provided with thread groove.

[0010] The utility model further sets up: the top of valve body is provided with movable slot, the lifting sleeve is movably arranged in movable slot, and connecting rod is installed between the lifting sleeve and the sealing disc.

[0011] The outer circumferential surface of the sealing disc is provided with a sealing step, and the inner top wall of the valve body is provided with a sealing groove matched with the sealing step.

[0012] The utility model further sets up: the bottom of sealing disc is installed with sealing ring, and the top of the receiving seat is provided with an annular groove matched with the sealing ring.

[0013] The utility model further sets up: the sealing member comprises a transmission unit arranged at the bottom of the receiving seat and a sealing sleeve arranged outside the transmission unit, the top surface of the receiving seat is provided with a receiving groove, and the sealing sleeve is movably arranged in the receiving groove.

[0014] The side wall of the sealing sleeve is oppositely provided with an opening.

[0015] The inner top wall of the valve body is integrally formed with a ring body, the bottom of the ring body is provided with a groove, the size of the groove is matched with the size of the sealing sleeve, and the side wall of the groove is provided with a sealing gasket.

[0016] The utility model further sets up: the number of transmission units is multiple groups, and the multiple groups of transmission units are arranged in an annular array at the bottom of the receiving seat.

[0017] The transmission unit comprises a sliding block movably arranged at the inner bottom of the receiving seat and a movable rod arranged between the side surface of the sliding block and the inner surface of the sealing sleeve.

[0018] One end of the sliding block relative to the central axis of the receiving seat is provided with a bevel surface.

[0019] The utility model further sets up: the inner bottom of the receiving seat is provided with a limiting groove, a limiting block is movably arranged in the limiting groove, and the limiting block is installed at the bottom of the sliding block.

[0020] The utility model has the advantages of the following:

[0021] The utility model discloses a sealing assembly is set up, cooperation rotating threaded rod, thereby under the effect of threaded pair makes the lifting cover along the length direction of threaded rod and moves down, and the lifting cover will cooperate with connecting rod synchronous and drive sealing disc to move down when moving down, because the bottom of sealing disc is conical structure, and the one end of slider is equipped with bevel surface, make sealing disc when moving down its bottom and slider contact, will extrude slider and move from inside to outside in the inside of bearing seat, thereby cooperation movable rod promotes sealing cover and moves up, and cooperation recess seals the port of sealing cover lateral wall, thereby to the inside passage of valve body is sealed, and cooperation sealing ring of sealing disc bottom and annular groove of bearing seat top further seals, and the sealing effect is better, avoids petroleum leakage. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the three-dimensional structure diagram of the utility model;

[0023] Figure 2 It is the sectional three-dimensional structure diagram of the utility model;

[0024] Figure 3 It is the utility model Figure 2 The partial close -up of A place in the utility model;

[0025] Figure 4 It is the utility model Figure 2 The partial close -up of B place in the utility model.

[0026] In the drawing: 1, valve body;11, connecting hole;12, ring body;13, recess;2, threaded rod;3, sealing assembly;31, lifting cover;32, sealing disc;321, sealing step;322, sealing groove;323, sealing ring;324, annular groove;33, bearing seat;34, sealing element;341, transmission unit;3411, slider;3412, movable rod;3413, limit block;342, sealing cover;3421, port;3422, sealing pad. DETAILED DESCRIPTION

[0027] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and characteristics of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model is more clearly and explicitly defined.

[0028] Please refer to Figure 1 Figure 4 A FC valve with sealing structure for oil exploitation, including valve body 1, the top center of valve body 1 is movably provided with threaded rod 2, the bottom of threaded rod 2 is provided with sealing assembly 3, and sealing assembly 3 is used for controlling the oil flow in FC valve in cooperation with threaded rod 2;

[0029] ​The sealing assembly 3 comprises a lifting sleeve 31 threadedly connected to the outside of the threaded rod 2, a sealing disc 32 installed at the bottom of the lifting sleeve 31, a receiving seat 33 arranged at the bottom of the inner side of the valve body 1 and matched with the sealing disc 32, and a sealing element 34 arranged between the receiving seat 33 and the inner top wall of the valve body 1;

[0030] The bottom longitudinal section of the sealing disc 32 is in a conical structure.

[0031] Both sides of the valve body 1 are provided with connecting holes 11, and the hole walls of the connecting holes 11 are provided with threaded grooves for connecting with external petroleum transportation pipelines.

[0032] The top of the valve body 1 is provided with a movable groove, and the lifting sleeve 31 is movably arranged in the movable groove, and a connecting rod is installed between the lifting sleeve 31 and the sealing disc 32.

[0033] The outer circumferential surface of the sealing disc 32 is provided with a sealing step 321, and the inner top wall of the valve body 1 is provided with a sealing groove 322 matched with the sealing step 321, so as to seal the space between the sealing disc 32 and the top wall of the valve body 1, thereby preventing the leakage of petroleum during transportation.

[0034] The bottom of the sealing disc 32 is provided with a sealing ring 323, and the top of the receiving seat 33 is provided with an annular groove 324 matched with the sealing ring 323, and the sealing ring 323 is preferably made of rubber, and the sealing ring 323 and the annular groove 324 are matched to seal the joint between the sealing disc 32 and the receiving seat 33.

[0035] The sealing element 34 comprises a transmission unit 341 arranged at the bottom of the receiving seat 33 and a sealing sleeve 342 arranged outside the transmission unit 341, and the top surface of the receiving seat 33 is provided with a receiving groove, and the sealing sleeve 342 is movably arranged in the receiving groove.

[0036] The side wall of the sealing sleeve 342 is oppositely provided with a through hole 3421 corresponding to the position of the connecting hole 11.

[0037] The inner top wall of the valve body 1 is integrally formed with a ring body 12, the bottom of the ring body 12 is provided with a groove 13 matched in size with the sealing sleeve 342, and the side wall of the groove 13 is provided with a sealing gasket 3422 made of rubber.

[0038] The number of the transmission units 341 is multiple, and the multiple transmission units 341 are arranged in an annular array at the bottom of the receiving seat 33.

[0039] The transmission unit 341 comprises a sliding block 3411 movably arranged at the inner bottom of the receiving seat 33 and a movable rod 3412 arranged between the side surface of the sliding block 3411 and the inner surface of the sealing sleeve 342.

[0040] The sliding block 3411 is provided with a bevel on one end relative to the central axis of the receiving seat 33.

[0041] The inner bottom of the receiving seat 33 is provided with a limiting groove, and a limiting block 3413 is movably arranged in the limiting groove.

[0042] When it is needed to close the valve body 1, the staff rotates the threaded rod 2, so that the lifting sleeve 31 moves downward along the length direction of the threaded rod 2 under the action of the threaded pair, and the lifting sleeve 31 moves downward to synchronously drive the sealing disc 32 to move downward through the connecting rod, and the bottom of the sealing disc 32 is in a conical structure, and one end of the sliding block 3411 is provided with a bevel, so that the bottom of the sealing disc 32 contacts the sliding block 3411 when the sealing disc 32 moves downward, and the sliding block 3411 is extruded to move from inside to outside in the receiving seat 33, so as to push the sealing sleeve 342 to move upward through the movable rod 3412, the through port 3421 of the side wall of the sealing sleeve 342 is sealed through the groove 13, so as to seal the internal passage of the valve body 1, and the sealing ring 323 at the bottom of the sealing disc 32 and the annular groove 324 at the top of the receiving seat 33 are further sealed in cooperation, the sealing effect is good, and the leakage of oil is avoided.

[0043] When it is needed to open the valve body 1, the threaded rod 2 is reversely rotated, so that the lifting sleeve 31 moves upward, thereby driving the sealing disc 32 to move upward, and the top of the valve body 1 is sealed through the cooperation of the sealing step 321 on the outer circumferential surface of the sealing disc 32 and the sealing groove 322, at this time, the sealing sleeve 342 falls under the action of gravity, so that the through port 3421 is exposed, and the oil can flow in the valve body 1.

[0044] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A FC valve with a sealing structure for oil exploitation, comprising a valve body (1), characterized in that: The top center of the valve body (1) is movably provided with a threaded rod (2), and the bottom of the threaded rod (2) is provided with a sealing assembly (3); The sealing assembly (3) comprises a lifting sleeve (31) threadedly connected to the outside of the threaded rod (2), a sealing disc (32) mounted at the bottom of the lifting sleeve (31), a receiving seat (33) provided at the bottom of the inside of the valve body (1) and matched with the sealing disc (32), and a sealing element (34) provided between the receiving seat (33) and the top wall of the inside of the valve body (1); The bottom longitudinal section of the sealing disc (32) is in a conical structure; Both sides of the valve body (1) are provided with connecting holes (11), and the hole wall of the connecting hole (11) is provided with a threaded groove; The top of the valve body (1) is provided with a movable groove, the lifting sleeve (31) is movably arranged in the movable groove, and a connecting rod is mounted between the lifting sleeve (31) and the sealing disc (32); The outer circumferential surface of the sealing disc (32) is provided with a sealing step (321), and the top wall of the inside of the valve body (1) is provided with a sealing groove (322) matched with the sealing step (321); The bottom of the sealing disc (32) is provided with a sealing ring (323), and the top of the receiving seat (33) is provided with an annular groove (324) matched with the sealing ring (323); The sealing element (34) comprises a transmission unit (341) provided at the bottom of the receiving seat (33) and a sealing sleeve (342) provided outside the transmission unit (341), and the top surface of the receiving seat (33) is provided with a receiving groove, and the sealing sleeve (342) is movably arranged in the receiving groove; The side wall of the sealing sleeve (342) is oppositely provided with a through hole (3421); The inside top wall of the valve body (1) is integrally formed with a ring body (12), the bottom of the ring body (12) is provided with a groove (13), the size of the groove (13) is matched with the size of the sealing sleeve (342), and the side wall of the groove (13) is provided with a sealing gasket (3422); The number of the transmission units (341) is multiple groups, and the multiple groups of the transmission units (341) are annularly arranged at the bottom of the receiving seat (33); The transmission unit (341) comprises a sliding block (3411) movably arranged at the inside bottom of the receiving seat (33) and a movable rod (3412) provided between the side surface of the sliding block (3411) and the inner surface of the sealing sleeve (342); One end of the sliding block (3411) relative to the central axis of the receiving seat (33) is provided with an inclined surface.

2. The FC valve with a sealing structure for oil exploitation according to claim 1, characterized in that: The inside bottom of the receiving seat (33) is provided with a limiting groove, and a limiting block (3413) is movably arranged in the limiting groove, and the limiting block (3413) is mounted at the bottom of the sliding block (3411).

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