阅读说明：本技术 一种油井电缆悬挂密封器 (Oil well cable suspension sealer ) 是由 张梓轩 易柏伟 宫政权 于 2021-07-29 设计创作，主要内容包括：本发明公开了一种油井电缆悬挂密封器,包括法兰锥卡体、电缆锥卡、密封体、密封螺母、密封塞、密封压板及电缆,法兰锥卡体具有带锥形漏斗面的轴心通孔,电缆锥卡外表面与锥形漏斗面相适应配合,密封体上端内部具有带锥形漏斗面的轴心通孔,下端外表面与法兰锥卡体上端内孔密封螺纹连接,上端外表面与密封螺母下端内表面螺纹连接,密封塞外周表面与密封体带锥形漏斗面相适应,密封螺母内部下端具有沉台,沉台内置有密封压板,密封压板下端面与密封塞上端表面接触,电缆分别穿过电缆锥卡、密封塞及密封压板设有的中心孔由电缆锥卡卡紧悬挂固定,并由密封压板挤压密封塞达到密封目的。本发明卡紧悬挂结构简单、密封结构简单、密封效果好。(The invention discloses an oil well cable suspension sealer, which comprises a flange cone clamp body, a cable cone clamp, a sealing body and a sealing nut, the sealing plug, sealing plate and cable, the flange awl card body has the axle center through-hole of taking the toper funnel face, the cable awl card surface suits the cooperation with the toper funnel face, the inside axle center through-hole of taking the toper funnel face that has of seal upper end, lower extreme surface and the sealed threaded connection of flange awl card body upper end hole, upper end surface and gland nut lower extreme internal surface threaded connection, sealing plug peripheral surface suits with the sealing body takes the toper funnel face, the inside lower extreme of gland nut has heavy platform, it has sealing plate to set up in the platform, sealing plate lower extreme and sealing plug upper end surface contact, the cable passes cable awl card respectively, the centre bore that sealing plug and sealing plate were equipped with is tightly hung fixedly by cable awl card to reach sealed purpose by the extrusion of sealing plate. The clamping suspension structure is simple, the sealing structure is simple, and the sealing effect is good.)

1. The oil well cable suspension sealer is characterized by comprising a flange cone clamp body (1), a cable cone clamp (2), a seal body (3), a seal nut (4), a seal plug (5), a seal pressing plate (6) and a cable (7), wherein the flange cone clamp body (1) is provided with an axle center through hole with a conical funnel surface, the outer surface of the cable cone clamp (2) is matched with the conical funnel surface in a matching way, the inner part of the upper end of the seal body (3) is provided with the axle center through hole with the conical funnel surface, the outer surface of the lower end is in seal threaded connection with an inner hole at the upper end of the flange cone clamp body (1), the outer surface of the upper end is in threaded connection with the inner surface at the lower end of the seal nut (4), the outer peripheral surface of the seal plug (5) is matched with the seal body (3) with the conical funnel surface, the inner lower end of the seal nut (4) is provided with a sinking platform, the seal pressing plate (6) is arranged in the sinking platform, the lower end face of the sealing pressing plate (6) is in contact with the upper end surface of the sealing plug (5), a cable (7) penetrates through the central hole formed in the cable cone clamp (2), the sealing plug (5) and the sealing pressing plate (6) respectively, the central hole is clamped, hung and fixed by the cable cone clamp (2), and the sealing plug (5) is extruded by the sealing pressing plate (6) to achieve the purpose of sealing.

2. An oil well cable suspension sealer as claimed in claim 1, wherein said cable cone (2) is centrally provided with an axial through hole and is formed by two half cones which are folded together and clamped to clamp said cable (7) by means of cone clamp screws (21) which are connected and folded together.

3. An oil well cable suspension sealer as claimed in claim 1, wherein the top end surface of the sealing plug (5) is provided with an open through groove (51), the lower surface of the sealing pressure plate (6) is provided with a strip-shaped protrusion (61) corresponding to the open through groove (51), and the strip-shaped protrusion (61) is inserted into the open through groove (51).

4. An oil well cable suspension sealer according to claim 1, wherein said sealing plug (5) is made of oil resistant rubber material.

5. An oil well cable suspension sealer according to any one of claims 1 to 4, further comprising a cable protective tube (8), wherein the inner bore of the lower end of the cable protective tube (8) is in threaded connection with the outer surface of the upper end of the gland nut (4).

6. An oil well cable suspension sealer according to claim 5, further comprising a sealing steel ring (8), wherein said sealing steel ring (8) is disposed on a concave ring disposed on a lower end face of said flange cone (1).

Technical Field

The invention relates to the technical field of cable sealing structures, in particular to an oil well cable suspension sealing structure.

Background

The electric pump hanger is an important sealing device on the well mouth of the electric pump oil production well, the cable of the oil production pump passes through the hanger between an oil pipe and a sleeve and is led to a ground power distribution device, great pressure exists in the well during oil production or well washing, the current hanger sealing device extrudes a flat oil-resistant rubber plate with holes by two flat metal plates with holes, the oil-resistant rubber plate is sealed by the deformation and expansion force of the rubber plate, and the problem of the existing hanger is that: when the pressure in the well is increased, the liquid between the oil pipe and the sleeve leaks along the gap between the cable pore pressing plate and the main body and the gap between the rubber pad and the outer diameter of the cable, and the sealing effect is poor.

Disclosure of Invention

Aiming at the defects of the prior art, the technical problem solved by the invention is the sealing effect problem of the electric pump hanger.

In order to solve the technical problems, the technical scheme adopted by the invention is that the oil well cable suspension sealer comprises a flange cone clamp body, a cable cone clamp, a sealing body, a sealing nut, a sealing plug, a sealing pressing plate and a cable, wherein the flange cone clamp body is provided with an axle center through hole with a conical funnel surface, the outer surface of the cable cone clamp is matched with the conical funnel surface in a matching manner, the inner part of the upper end of the sealing body is provided with the axle center through hole with the conical funnel surface, the outer surface of the lower end of the sealing body is in sealing threaded connection with the inner hole of the upper end of the flange cone clamp body, the outer surface of the upper end of the sealing plug is in threaded connection with the inner surface of the lower end of the sealing nut, the outer surface of the sealing plug is matched with the conical funnel surface of the sealing body, the lower end of the inner part of the sealing nut is provided with a sinking platform, the sealing pressing plate is arranged in the sinking platform, the lower end surface of the sealing pressing plate is in contact with the upper end surface of the sealing plug, and the cable respectively passes through the cable cone clamp, The sealing plug and the central hole arranged on the sealing pressure plate are clamped, hung and fixed by the cable cone, and the sealing pressure plate extrudes the sealing plug to achieve the sealing purpose.

The center of the cable cone clamp is provided with a shaft through hole and formed by folding two half cones, and the cable is tightly clamped by connecting and folding the cone clamp screws.

In order to prevent the sealing plug from rotating due to oil pressure fluctuation to influence the sealing effect, as an improvement of the invention, the surface of the top end of the sealing plug is provided with an opening through groove, the lower surface of the sealing pressure plate is provided with a strip-shaped bulge matched with the opening through groove, and the strip-shaped bulge is inserted into the opening through groove to prevent the sealing plug from rotating.

The sealing plug is made of oil-resistant rubber material.

In order to protect the cable, the invention further comprises a cable protection tube 8 as an improvement of the invention, and an inner hole at the lower end of the cable protection tube 8 is in threaded connection with the outer surface of the upper end of the sealing nut.

In order to enhance the sealing effect of the lower end face of the flange cone clamping body, as an improvement of the invention, the invention further comprises a sealing steel ring 8, wherein the sealing steel ring 8 is arranged on a concave ring arranged on the lower end face of the flange cone clamping body.

Compared with the prior art, the cable cone clamping and locking structure has the advantages that the cable cone is adopted to clamp and lock the cable on the conical funnel surface, the clamping and hanging structure is simple, the sealing structure is simple by adopting the sealing extrusion and pressing sealing plug to seal the conical funnel surface, and the sealing effect is good.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is one of the exploded views of the sealing plug and the sealing pressure plate;

fig. 4 is a second exploded view of the sealing plug and the sealing pressure plate.

Detailed Description

The following description will be made with reference to the accompanying drawings, but the present invention is not limited thereto.

FIGS. 1 to 4 show a hanging sealer for oil well cable, comprising a flange cone clamp body 1, a cable cone clamp 2, a sealing body 3, a sealing nut 4, a sealing plug 5, a sealing pressure plate 6 and a cable 7, wherein the flange cone clamp body 1 is provided with an axle center through hole with a conical funnel surface, the outer surface of the cable cone clamp 2 is matched with the conical funnel surface, the upper end of the sealing body 3 is internally provided with the axle center through hole with the conical funnel surface, the lower end outer surface is connected with the upper end inner hole of the flange cone clamp body 1 in a sealing and threaded manner, the upper end outer surface is connected with the lower end inner surface of the sealing nut 4 in a threaded manner, the outer peripheral surface of the sealing plug 5 is matched with the conical funnel surface of the sealing body 3, the lower end of the sealing nut 4 is provided with a sinking platform, the sealing pressure plate 6 is arranged in the sinking platform, the lower end surface of the sealing pressure plate 6 is contacted with the upper end surface of the sealing plug 5, the cable 7 respectively passes through the central holes arranged on the cable cone clamp 2, the sealing plug 5 and the sealing pressure plate 6 and is hung and fixed by the cable cone clamp 2, and the sealing pressure plate 6 presses the sealing plug 5 to achieve the sealing purpose.

The center of the cable cone clamp 2 is provided with a shaft through hole and formed by folding two half cones, and the cable 7 is connected and folded through a cone clamp screw 21 to be clamped.

As shown in fig. 3 and 4, in order to prevent the sealing plug 5 from rotating due to oil pressure fluctuation and affecting the sealing effect, as an improvement of the present invention, an open through groove 51 is formed on the top surface of the sealing plug 5, a strip protrusion 61 adapted to the open through groove 51 is formed on the lower surface of the sealing pressure plate 6, and the strip protrusion 61 is inserted into the open through groove 51 to prevent the sealing plug 5 from rotating.

The sealing plug 5 is made of oil-resistant rubber material.

As shown in fig. 1 and 2, in order to protect the cable, as an improvement of the present invention, the present invention further includes a cable protection tube 8, and an inner hole at the lower end of the cable protection tube 8 is in threaded connection with an outer surface at the upper end of the gland nut 4.

As shown in fig. 1 and 2, in order to enhance the sealing effect of the lower end surface of the flange cone-shaped clamping body 1, as an improvement of the present invention, the present invention further comprises a sealing steel ring 8, wherein the sealing steel ring 8 is arranged on a concave ring arranged on the lower end surface of the flange cone-shaped clamping body 1.

The working principle of the invention is as follows: the cable 7 respectively passes through the central holes formed in the cable cone clamp 2, the sealing plug 5 and the sealing pressing plate 6, the two half cones of the cable cone clamp 2 are folded and clamped, the cable 7 is suspended and fixed on the flange cone clamp body 1 by the self weight of the cable 7, the sealing nut 4 is screwed to abut against the sealing pressing plate 6 to extrude the sealing plug 5, the sealing plug 5 is extruded to expand outwards to seal the gap between the periphery of the cable 7 and the periphery of the shaft hole of the sealing plug 5, and meanwhile, the gap between the periphery of the sealing plug 5 and the gap between the periphery of the sealing body 3 with the conical funnel surface is sealed.

Compared with the prior art, the cable cone clamping and locking structure has the advantages that the cable cone is adopted to clamp and lock the cable on the conical funnel surface, the clamping and hanging structure is simple, the sealing structure is simple by adopting the sealing extrusion and pressing sealing plug to seal the conical funnel surface, and the sealing effect is good.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.