Novel packing sealing device and application method thereof

Abstract

The invention discloses a novel packing sealing device and an application method thereof.The novel packing sealing device comprises a mounting base and a packing shell fixedly connected to the top of the mounting base, a polish rod body is arranged in the packing shell, and a packing body is spirally arranged at the position, corresponding to the polish rod body, in the packing shell; a positioning pressing ring capable of extruding and sealing the packing body is arranged at the position, corresponding to the packing body, of the top of the packing shell. The adjusting bolt is rotated by rotating the hand wheel, the positioning pressing ring can be driven to move downwards under the action of the thread sleeve and the threads of the adjusting bolt, the top of the packing body is extruded through the positioning pressing ring, and therefore the tightness degree between the packing bodies can be increased, and the sealing effect of the packing body is improved; and the annular sealing air bag is inflated through the inflation nozzle, so that the pressure between the packing shell and the packing main body can be increased, and the sealing effect between the packing shell and the packing main body is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packing seal, in particular to a novel packing seal device and its application method. BACKGROUND

[0002] The packing is a kind of sealing filler woven by relatively soft linear objects, mainly used as shaft seal of water lifting machinery, at present, most of domestic oil fields adopt the way of rod pump oil pumping unit to exploit crude oil, at the wellhead of oil pumping well, mechanical dynamic seal, i.e. packing box, must be used to realize the sealing of polished rod, but the existing packing and sealing device are not tight enough when installed, and the gap between the packing and the polished rod is easy to be generated due to long time friction and damage, which reduces the sealing performance of the polished rod.

[0003] The Chinese patent with publication (announcement) No. CN210034407U discloses a packing seal device, which comprises a device main body, a pressure cover movably installed at the upper end of the device main body, a pressure sleeve fixedly installed at the middle position of the outer surface of the lower end of the pressure cover, a packing box formed in the inside of the device main body, a polished rod penetrating through the inside of the packing box, a packing movably installed at the outer surface of the polished rod inside the packing box, a bottom sleeve fixedly installed at the lower end inside the packing box, a sealing ring movably installed between the pressure sleeve and the packing box, and a sleeve penetrating through the inside of the pressure sleeve.

[0004] Although the above technical solution solves the corresponding technical problem, the packing device in the above technology can only realize the longitudinal extrusion sealing of the packing, and cannot realize the transverse sealing of the packing, thus resulting in poor sealing effect. SUMMARY

[0005] The present application aims to provide a novel packing seal device and its application method, which can not only rotate the adjusting bolt by rotating the hand wheel, and drive the positioning pressure ring to move downward under the thread action of the threaded sleeve and the adjusting bolt, and extrude the top of the packing main body by the positioning pressure ring, so as to increase the tightness between the packing main bodies and improve the sealing effect of the packing main bodies, but also inflate the inside of the annular sealing air bag through the inflation nozzle, so as to increase the pressure between the packing shell and the packing main body, thereby ensuring the sealing effect between the packing shell and the packing main body, and by setting the movable sealing ball, when the gas is introduced through the left side of the inflation nozzle, the sealing ball can be pressed and separated from the sealing ring, so as to ensure the normal introduction of the gas, and when the gas stops being introduced through the left side of the inflation nozzle, the sealing ball on the side of the connecting plate is driven to move leftward and block the sealing ring under the elastic force of the return spring, thereby effectively preventing the backflow of the gas.

[0006] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the present application comprises: A new type of packing seal device and its application method, comprising: The installation base and the packing shell fixedly connected on the top of the installation base, the inside of the packing shell is provided with the light rod body, the inside of the packing shell and the position corresponding to the light rod body are spirally provided with the packing body, the top of the packing shell and the position corresponding to the packing body are provided with the positioning pressure ring which can extrude and seal the packing body, and the position corresponding to the packing body on the packing shell is also provided with the annular sealing air bag which can extrude and seal the packing body.

[0007] The new type of packing seal device and its application method, wherein the top of the packing shell and the position corresponding to the light rod body are provided with the installation end cover matched with the packing shell, the edge of the installation end cover is provided with a plurality of installation bolts arranged at equal distances, and the installation end cover is fixedly installed on the top of the packing shell through the plurality of installation bolts.

[0008] The new type of packing seal device and its application method, wherein the two sides of the top of the positioning pressure ring are provided with the adjusting bolts for adjusting the positioning pressure ring, the bottom of the adjusting bolt is rotatably installed on the top of the positioning pressure ring through the bearing, the thread sleeve is threadedly connected on the adjusting bolt, the thread sleeve is fixedly connected on the installation end cover, and the end of the adjusting bolt is fixedly connected with the rotating hand wheel for rotating the adjusting bolt.

[0009] The new type of packing seal device and its application method, wherein the side of the annular sealing air bag is provided with the inflation nozzle which can prevent the backflow of gas.

[0010] The new type of packing seal device and its application method, wherein the inner wall of the inflation nozzle is fixedly connected with the sealing ring, and the side of the sealing ring is provided with the sealing ball matched with the sealing ring.

[0011] The new type of packing seal device and its application method, wherein the side of the sealing ring is fixedly connected with the mounting bracket, the side of the inner wall of the mounting bracket is fixedly connected with the return spring, the other end of the return spring is fixedly connected with the connecting plate, and the side of the connecting plate close to the sealing ball is fixedly connected with the side of the sealing ball.

[0012] The new type of packing seal device and its application method, wherein the top and the bottom of the connecting plate are fixedly connected with the positioning sliding block, the inner wall of the inflation nozzle and the position corresponding to the positioning sliding block are provided with the positioning sliding groove matched with the positioning sliding block, and the side of the positioning sliding block close to the positioning sliding groove is movably penetrated through the positioning sliding groove and extends to the inside of the positioning sliding groove, and the inner wall of the positioning sliding groove is slidably connected with the positioning sliding block.

[0013] The new type of packing seal device and the application method thereof, wherein the bottom of the positioning pressure ring and the bottom of the inner wall of the packing shell are provided with sealing pads corresponding to the position of the packing body.

[0014] The new type of packing seal device and the application method thereof, wherein the two sides of the positioning pressure ring are fixedly connected with limiting sliding blocks for limiting the positioning pressure ring, and the inner wall of the packing shell is provided with limiting sliding grooves corresponding to the positions of the limiting sliding blocks and in sliding connection with the limiting sliding blocks.

[0015] An application method of a new type of packing seal device, comprising the following steps: S1, first, winding the packing body on the polished rod body, then inserting the polished rod body with the winding packing body into the packing shell, so as to realize the sealed connection of the packing shell and the polished rod body; S2, then rotating the adjusting bolt by rotating the hand wheel, and under the threaded action of the threaded sleeve and the adjusting bolt, the positioning pressure ring can be driven to move downward, and the top of the packing body is extruded by the positioning pressure ring, so as to increase the tightness between the packing bodies, thereby improving the sealing effect of the packing body; S3, then inflating the annular sealing air bag through the inflation nozzle, so as to increase the pressure between the packing shell and the packing body, thereby ensuring the sealing effect between the packing shell and the packing body; S4, finally, by setting the movable sealing ball, when the gas is introduced through the left side of the inflation nozzle, the sealing ball can be pressed and separated from the sealing ring, so as to ensure the normal introduction of the gas, and when the gas stops being introduced through the left side of the inflation nozzle, under the elastic force of the reset spring, the sealing ball on the side of the connecting plate moves to the left and blocks the sealing ring, thereby effectively preventing the backflow of the gas.

[0016] Compared with the prior art, the advantages and positive effects of the present application are: The application can drive the positioning compression ring to move downwards and extrude the top of the packing main body through the positioning compression ring, so as to increase the tightness between the packing main bodies and improve the sealing effect of the packing main body, can increase the pressure between the packing shell and the packing main body by inflating the annular sealing air bag, so as to ensure the sealing effect between the packing shell and the packing main body, and can ensure the normal inflow of the gas by setting the movable sealing ball, when the gas is introduced through the left side of the inflation nozzle, the pressure of the sealing ball can be generated, and the sealing ball is separated from the sealing ring, so as to effectively prevent the backflow of the gas. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings: Figure 1 It is a structural schematic view of the novel packing seal device of the application; Figure 2 It is a sectional structure schematic view of the novel packing seal device of the application; Figure 3 It is a structural schematic view of the mounting end cover in the novel packing seal device of the application; Figure 4 It is a structural schematic view of the positioning compression ring in the novel packing seal device of the application; Figure 5 It is a structural schematic view of the annular sealing air bag in the novel packing seal device of the application; Figure 6 It is a sectional structure schematic view of the annular sealing air bag in the novel packing seal device of the application; Figure 7 It is a structural schematic view of the inflation nozzle in the novel packing seal device of the application; Figure 8 It is a flow chart of the application method of the novel packing seal device of the application.

[0018] Explanation of reference numerals: 1, mounting base; 2, packing shell; 3, polished rod main body; 4, packing main body; 5, positioning compression ring; 6, annular sealing air bag; 201, mounting end cover; 2011, mounting bolt; 501, adjusting bolt; 5011, threaded sleeve; 5012, rotating hand wheel; 502, sealing gasket; 503, limiting sliding block; 5031, limiting sliding groove; 601, inflation nozzle; 602, sealing ring; 6021, sealing ball; 603, mounting bracket; 6031, return spring; 6032, connecting plate; 604, positioning sliding block; 6041, positioning sliding groove. DETAILED DESCRIPTION

[0019] The embodiments of the present application will be described in detail below with the accompanying drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0020] Example 1 Please refer to Figure 8 The application method of a new type of packing seal device, comprising the following steps: S1, first, winding the packing main body 4 on the polished rod main body 3, then inserting the polished rod main body 3 with the winding packing main body 4 into the packing shell 2, so as to realize the sealed connection of the packing shell 2 and the polished rod main body 3; S2, then rotate the adjusting bolt 501 by rotating the hand wheel 5012, and under the threaded action of the threaded sleeve 5011 and the adjusting bolt 501, the positioning pressure ring 5 can be moved downward, and the top of the packing main body 4 is extruded by the positioning pressure ring 5, so as to increase the tightness between the packing main body 4, and thus improve the sealing effect of the packing main body 4; S3, secondly, inflate the annular sealing air bag 6 inside through the inflation nozzle 601, so as to increase the pressure between the packing shell 2 and the packing main body 4, thereby ensuring the sealing effect between the packing shell 2 and the packing main body 4; S4, finally, by setting the movable sealing ball 6021, when the gas is introduced through the left side of the inflation nozzle 601, the pressure on the sealing ball 6021 can be generated, and the sealing ball 6021 is separated from the sealing ring 602, so as to ensure the normal introduction of the gas, and when the gas stops being introduced through the left side of the inflation nozzle 601, under the elastic force of the return spring 6031, the sealing ball 6021 on the side of the connecting plate 6032 moves to the left, and blocks the sealing ring 602, so as to effectively prevent the backflow of the gas Example 2 Please refer to Figures 1 to 7As shown, the embodiment of the present application provides a new type of packing seal device and its application method, which comprises a mounting base 1 and a packing shell 2 fixedly connected to the top of the mounting base 1, the inside of the packing shell 2 is provided with a polished rod body 3, the inside of the packing shell 2 and the position corresponding to the polished rod body 3 are spirally provided with a packing body 4, the top of the packing shell 2 and the position corresponding to the packing body 4 are provided with a positioning pressure ring 5 which can extrude and seal the packing body 4, and the packing shell 2 and the position corresponding to the packing body 4 are further provided with an annular sealing air bag 6 which can extrude and seal the packing body 4.

[0021] Please refer to Figures 1 to 7 As shown, the top of the packing shell 2 and the position corresponding to the polished rod body 3 are provided with a mounting end cover 201 matched with the packing shell 2, the edge of the mounting end cover 201 is provided with a plurality of mounting bolts 2011 arranged at equal distances, and the mounting end cover 201 is fixedly installed on the top of the packing shell 2 through the plurality of mounting bolts 2011.

[0022] Please refer to Figures 1 to 7 As shown, the two sides of the top of the positioning pressure ring 5 are provided with adjusting bolts 501 for adjusting the positioning pressure ring 5, the bottom of the adjusting bolt 501 is rotatably installed on the top of the positioning pressure ring 5 through a bearing, a threaded sleeve 5011 is threadedly connected to the adjusting bolt 501, the threaded sleeve 5011 is fixedly connected to the mounting end cover 201, and the end of the adjusting bolt 501 is fixedly connected with a rotating hand wheel 5012 for rotating the adjusting bolt 501.

[0023] Please refer to Figures 1 to 7 As shown, the side of the annular sealing air bag 6 is provided with an inflation nozzle 601 which can prevent gas backflow.

[0024] Please refer to Figures 1 to 7 As shown, the inner wall of the inflation nozzle 601 is fixedly connected with a sealing ring 602, and the side of the sealing ring 602 is provided with a sealing ball 6021 matched with the sealing ring 602.

[0025] Please refer to Figures 1 to 7 As shown, the side of the sealing ring 602 is fixedly connected with a mounting frame 603, the side of the inner wall of the mounting frame 603 is fixedly connected with a return spring 6031, the other end of the return spring 6031 is fixedly connected with a connecting plate 6032, and the side of the connecting plate 6032 close to the sealing ball 6021 is fixedly connected with the side of the sealing ball 6021.

[0026] Please refer to Figures 1 to 7As shown, the top and bottom of the connecting plate 6032 are fixedly connected with positioning sliding blocks 604, the inner wall of the inflation nozzle 601 is provided with positioning sliding grooves 6041 matched with the positioning sliding blocks 604 at positions corresponding to the positioning sliding blocks 604, one side of the positioning sliding blocks 604 close to the positioning sliding grooves 6041 is movably penetrated through the positioning sliding grooves 6041 and extends to the inside of the positioning sliding grooves 6041 and is in sliding connection with the inner wall of the positioning sliding grooves 6041; By adopting the above technical scheme, the positioning sliding blocks 604 and the positioning sliding grooves 6041 are arranged to limit the connecting plate 6032, thereby increasing the sealing effect between the connecting plate 6032, the sealing ball 6021 and the sealing ring 602.

[0027] Please refer to Figures 1 to 7 As shown, the bottom of the positioning compression ring 5 and the bottom of the inner wall of the packing shell 2 are provided with sealing pads 502 at positions corresponding to the packing main body 4; By adopting the above technical scheme, the sealing pads 502 are arranged to increase the sealing effect of the top and bottom of the packing main body 4.

[0028] Please refer to Figures 1 to 7 As shown, the two sides of the positioning compression ring 5 are fixedly connected with limiting sliding blocks 503 for limiting the positioning compression ring 5, and the inner wall of the packing shell 2 is provided with limiting sliding grooves 5031 in sliding connection with the limiting sliding blocks 503 at positions corresponding to the limiting sliding blocks 503; By adopting the above technical scheme, the limiting sliding blocks 503 and the limiting sliding grooves 5031 are arranged to limit the positioning compression ring 5, thereby increasing the stability of the positioning compression ring 5 in extruding the packing main body 4.

[0029] The working principle of the present application is that: not only the rotating hand wheel 5012 is rotated to rotate the adjusting bolt 501, and the positioning compression ring 5 is driven to move downward under the threaded action of the threaded sleeve 5011 and the adjusting bolt 501, and the top of the packing main body 4 is extruded by the positioning compression ring 5, so that the tightness between the packing main body 4 can be increased, and the sealing effect of the packing main body 4 can be improved, but also the annular sealing air bag 6 is inflated through the inflation nozzle 601, so that the pressure between the packing shell 2 and the packing main body 4 can be increased, thereby ensuring the sealing effect between the packing shell 2 and the packing main body 4, and the movable sealing ball 6021 is arranged, when the gas is introduced through the left side of the inflation nozzle 601, the sealing ball 6021 can be pressed, and the sealing ball 6021 can be separated from the sealing ring 602, so that the normal introduction of the gas can be ensured, and when the gas introduction through the left side of the inflation nozzle 601 is stopped, the sealing ball 6021 on the side of the connecting plate 6032 is driven to move leftward under the elastic force of the reset spring 6031, and the sealing ring 602 is blocked, so that the backflow of the gas can be effectively prevented.

[0030] The foregoing description illustrates and describes several preferred embodiments of the present application, but it is to be understood that the application is not limited to the above-described forms, and that other embodiments can be implemented without departing from the spirit or scope of the inventive concept. Changes and modifications can be made to the above-described embodiments without departing from the spirit and scope of the present application, and the application incorporates by reference any and all modifications and changes to the foregoing illustrative embodiments.

Claims

1. A novel packing seal device and its application method, comprising a mounting base (1) and a packing shell (2) fixedly connected to the top of the mounting base (1), characterized in that, The inside of the packing shell (2) is provided with a polish rod body (3), the inside of the packing shell (2) is spirally provided with a packing body (4) corresponding to the position of the polish rod body (3), the top of the packing shell (2) is provided with a positioning compression ring (5) capable of extruding and sealing the packing body (4) corresponding to the position of the packing body (4), and the top of the packing shell (2) is further provided with an annular sealing air bag (6) capable of extruding and sealing the packing body (4) corresponding to the position of the packing body (4).

2. A novel packing seal device as claimed in claim 1, wherein: The top of the packing shell (2) is provided with a mounting end cover (201) matched with the packing shell (2) corresponding to the position of the polish rod body (3), the edge of the mounting end cover (201) is provided with a plurality of mounting bolts (2011) arranged at equal distances, and the mounting end cover (201) is fixedly mounted on the top of the packing shell (2) through the plurality of mounting bolts (2011).

3. A novel packing seal device as claimed in claim 2, wherein: Both sides of the top of the positioning compression ring (5) are provided with adjusting bolts (501) for adjusting the positioning compression ring (5), the bottom of the adjusting bolt (501) is rotatably mounted on the top of the positioning compression ring (5) through a bearing, a threaded sleeve (5011) is threadedly connected to the adjusting bolt (501), the threaded sleeve (5011) is fixedly connected to the mounting end cover (201), and an rotating hand wheel (5012) for rotating the adjusting bolt (501) is fixedly connected to the end of the adjusting bolt (501).

4. A novel packing seal device as claimed in claim 3, wherein: The side of the annular sealing air bag (6) is provided with an inflation nozzle (601) capable of preventing gas backflow.

5. A novel packing seal device as claimed in claim 4, wherein: The inner wall of the inflation nozzle (601) is fixedly connected with a sealing ring (602), and the side of the sealing ring (602) is provided with a sealing ball (6021) matched with the sealing ring (602).

6. A novel packing seal device as claimed in claim 5, wherein: The side of the sealing ring (602) is fixedly connected with a mounting bracket (603), the side of the inner wall of the mounting bracket (603) is fixedly connected with a return spring (6031), the other end of the return spring (6031) is fixedly connected with a connecting plate (6032), and the side of the connecting plate (6032) close to the sealing ball (6021) is fixedly connected with the side of the sealing ball (6021).

7. A novel packing seal device as claimed in claim 6, wherein: The top and bottom of the connecting plate (6032) are fixedly connected with positioning sliding blocks (604), the inner wall of the inflation nozzle (601) is provided with positioning sliding grooves (6041) matched with the positioning sliding blocks (604) corresponding to the positions of the positioning sliding blocks (604), and the side of the positioning sliding block (604) close to the positioning sliding groove (6041) movably penetrates through the positioning sliding groove (6041) and extends into the inside of the positioning sliding groove (6041) and is slidably connected with the inner wall of the positioning sliding groove (6041).

8. A novel packing seal device as claimed in claim 7, wherein: The bottom of the positioning compression ring (5) and the bottom of the inner wall of the packing shell (2) are provided with sealing gaskets (502) corresponding to the position of the packing body (4).

9. A novel packing seal device as claimed in claim 8, wherein: Both sides of the positioning compression ring (5) are fixedly connected with limiting sliding blocks (503) for limiting the positioning compression ring (5), and the inner wall of the packing case (2) is provided with limiting sliding grooves (5031) corresponding to the positions of the limiting sliding blocks (503) and in sliding connection with the limiting sliding blocks (503).

10. A method of using a new packing seal, characterized by: The method comprises the following steps: S1, first, the packing main body (4) is wound on the polished rod main body (3), and then the polished rod main body (3) with the packing main body (4) wound thereon is inserted into the packing case (2), so that the sealing connection of the packing case (2) and the polished rod main body (3) is realized; S2, then, the adjusting screw (501) is rotated by rotating the hand wheel (5012), and under the threaded action of the threaded sleeve (5011) and the adjusting screw (501), the positioning compression ring (5) is driven to move downward, and the top of the packing main body (4) is extruded by the positioning compression ring (5), so that the tightness between the packing main bodies (4) is increased, and the sealing effect of the packing main body (4) is improved; S3, then, the annular sealing air bag (6) is inflated through the inflation nozzle (601), so that the pressure between the packing case (2) and the packing main body (4) is increased, thereby ensuring the sealing effect between the packing case (2) and the packing main body (4); S4, finally, the movable sealing ball (6021) is arranged, when the gas is introduced through the left side of the inflation nozzle (601), the pressure of the gas can be applied to the sealing ball (6021), and the sealing ball (6021) is separated from the sealing ring (602), so that the normal introduction of the gas is ensured, and when the gas introduction through the left side of the inflation nozzle (601) is stopped, under the elastic force of the reset spring (6031), the sealing ball (6021) on the side of the connecting plate (6032) is driven to move leftward and block the sealing ring (602), thereby effectively preventing the backflow of the gas.

Images