CN208966251U - Blowout prevention box - Google Patents
Blowout prevention box Download PDFInfo
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- CN208966251U CN208966251U CN201821328648.1U CN201821328648U CN208966251U CN 208966251 U CN208966251 U CN 208966251U CN 201821328648 U CN201821328648 U CN 201821328648U CN 208966251 U CN208966251 U CN 208966251U
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- tube body
- blowout prevention
- prevention box
- pipe nipple
- packing
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Abstract
The utility model discloses a kind of blowout prevention box, belongs to the wellhead sealing technical field of oil production equipment.Blowout prevention box includes: sequentially connected packing bin, pipe nipple and pressure cap, and packing bin and pipe nipple are tubular structure, and the axis collinear of packing bin, pipe nipple and pressure cap three, packing bin and pipe nipple are used to install packing additional.The utility model helps to solve the problems, such as blowout prevention box oil leak, avoids blowout prevention box oil leak.The utility model is used for polished rod seal.
Description
Technical field
The utility model relates to the wellhead sealing technical field of oil production equipment, in particular to a kind of blowout prevention box.
Background technique
Such as pumping unit etc has bar oil production equipment usually to have a polished rod, and polished rod is by being mounted on the oil pipe of well mouth of oil well
In four-way tripping in oil well, in order to there is bar oil production equipment to carry out oil extraction.In order to avoid the leakage of recovery process Crude Oil, usually
Blowout prevention box is installed on oil pipe four-way, blowout prevention box is made to be socketed in polished rod, and in blowout prevention box install additional packing come to polished rod carry out it is close
Envelope.
Currently, blowout prevention box includes the packing bin of round tube shape structure and the pressure cap that connect with one end of packing bin.The blowout prevention
When in use, packing bin is socketed on polished rod for box, connect one end of packing bin with oil pipe four-way, is then added into packing bin
Sabot root, is bonded packing with polished rod, and pressure cap is finally arranged in the upper end of packing bin.During polished rod motion, packing
Polished rod can be sealed, avoid blowout prevention box oil leak.
But the length of above-mentioned packing bin is smaller, causes the packing installed additional in blowout prevention box less, blowout prevention box and polished rod it is close
Cover is smaller, and polished rod motion process is prone to wear packing, causes the sealing surface of blowout prevention box and polished rod impaired, so as to cause blowout prevention box
Oil leak.
Utility model content
The utility model provides a kind of blowout prevention box, helps avoid blowout prevention box oil leak.The technical solution of the utility model is such as
Under:
The utility model provides a kind of blowout prevention box, and the blowout prevention box includes: sequentially connected packing bin, pipe nipple and pressure cap,
The packing bin and the pipe nipple are tubular structure, the axis collinear of the packing bin, the pipe nipple and the pressure cap three,
The packing bin and the pipe nipple are used to install packing additional.
Optionally, the blowout prevention box further include: gland head, the gland head are tubular structure, and the gland head setting exists
In the pressure cap, and one end of the gland head is socketed in the pipe nipple, and the other end is located at outside the pipe nipple.
Optionally, the other end of the gland head is provided with the first annular protrusion to the outer wall protrusion of the gland head,
The first annular protrusion is connected to one end of the pipe nipple.
Optionally, the packing bin is provided with second to the inner cavity of packing bin protrusion far from one end of the pipe nipple
Annular protrusion, second annular protrusion is for being clamped packing.
Optionally, the pressure cap is tubular structure, and one end that the pressure cap is not connect with the pipe nipple is provided with to described
The third annular protrusion of the inner cavity protrusion of pressure cap, the third annular protrusion is for being clamped the gland head.
Optionally, rotating handle is provided on the outer wall of the pressure cap.
Optionally, the first annular protrusion is structure as a whole with the gland head, second annular protrusion with it is described
Packing bin is structure as a whole, and the third annular protrusion is structure as a whole with the pressure cap.
Optionally, the packing bin is connect with the short-section thread, and the pipe nipple is threadedly coupled with the pressure cap.
Optionally, the pipe nipple is to be sequentially overlapped the integral structure formed by the first tube body, the second tube body and third tube body,
The internal diameter of the axis collinear of first tube body, second tube body and the third tube body three, first tube body is greater than
The internal diameter of second tube body, the internal diameter of second tube body are equal to the internal diameter of the third tube body, first tube body it is outer
Diameter is equal to the outer diameter of second tube body, and the outer diameter of second tube body is greater than the outer diameter of the third tube body, second pipe
The sum of wall thickness of the internal diameter of body and the packing bin is equal to the internal diameter of first tube body,
First tube body is provided with internal screw thread, and one end of the packing bin is provided with external screw thread, the first tube body set
It connects on the packing bin, and first tube body is threadedly coupled with the packing bin；
The third tube body is provided with external screw thread, and one end of the pressure cap is provided with internal screw thread, and the pressure cap is socketed in institute
It states on third tube body, and the pressure cap is threadedly coupled with the third tube body.
Optionally, the internal diameter of the packing bin is equal with the internal diameter of second tube body.
Optionally, the packing bin, the pipe nipple, the gland head and the pressure cap are round tube shape structure,
Technical solution provided by the utility model has the benefit that
Blowout prevention box provided by the utility model includes sequentially connected packing bin, pipe nipple and pressure cap, and packing bin and pipe nipple are equal
For tubular structure, the axis collinear of packing bin, pipe nipple and pressure cap three, packing bin and pipe nipple are used to install packing additional.Due to disk
Root storehouse and pipe nipple are used to install packing additional, therefore the packing that can be installed additional in blowout prevention box is more, the sealing surface of blowout prevention box and polished rod
Larger, polished rod motion process is not easy to wear packing, and the sealing surface for helping avoid blowout prevention box and polished rod is impaired, to avoid preventing
Spray box oil leak.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Utility model.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of blowout prevention box provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of another blowout prevention box provided by the embodiment of the utility model；
Fig. 3 is a kind of structural schematic diagram of pipe nipple provided by the embodiment of the utility model；
Fig. 4 is the application scenario diagram of blowout prevention box provided by the embodiment of the utility model；
Fig. 5 is the part isometric structural schematic diagram of the application scenarios of blowout prevention box provided by the embodiment of the utility model.
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets the utility model
Embodiment, and be used to explain the principles of the present invention together with specification.
Specific embodiment
It is practical to this below in conjunction with attached drawing in order to keep the purpose of this utility model, technical solution and advantage clearer
It is novel to be described in further detail, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work
Under the premise of all other embodiment obtained, fall within the protection scope of the utility model.
The packing installed additional in blowout prevention box at present is less, is typically only capable to install 7 pieces of packings, therefore the sealing of blowout prevention box and polished rod additional
Face is smaller, and polished rod is prone to wear packing during the motion, causes the sealing surface of blowout prevention box and polished rod impaired, needs frequently to adjust
The elastic or even carousel root of the pressure cap of blowout prevention box just can guarantee effective sealing of the blowout prevention box to polished rod, and this method not only can
Increase the labor intensity of staff's inspection and maintenance, and in the case where inspection and maintenance not in place, there is also blowout prevention
Pollution problem caused by box oil leak.The pipe nipple that blowout prevention box provided by the utility model is connect by setting with packing bin, successively exists
Install packing in packing bin and pipe nipple additional, therefore the packing that can be installed additional in the blowout prevention box is more, the sealing surface of blowout prevention box and polished rod
Larger, packing is not easy to wear, it is possible to prevente effectively from blowout prevention box oil leak, and the labour that not will increase staff's inspection and maintenance is strong
Degree.Scheme provided by the utility model please refers to following embodiments.
Referring to FIG. 1, it illustrates a kind of structural schematic diagram of blowout prevention box provided by the embodiment of the utility model, the blowout prevention
Box includes: sequentially connected packing bin 011, pipe nipple 012 and pressure cap 013, and packing bin 011 and pipe nipple 012 are tubular structure, disk
The axis collinear a of 013 three of root storehouse 011, pipe nipple 012 and pressure cap, packing bin 011 and pipe nipple 012 are used to install packing (Fig. 1 additional
In be not shown).
In conclusion blowout prevention box provided by the embodiment of the utility model, since packing bin and pipe nipple are used to install packing additional,
Therefore the packing that can be installed additional in blowout prevention box is more, and the sealing surface of blowout prevention box and polished rod is larger, and polished rod motion process is not easy to grind
Packing is damaged, the sealing surface for helping avoid blowout prevention box and polished rod is impaired, to avoid blowout prevention box oil leak.
Further, referring to FIG. 2, it illustrates the structures of another blowout prevention box provided by the embodiment of the utility model to show
It is intended to, on the basis of Fig. 1, the blowout prevention box further include: gland head 014, gland head 014 are tubular structure, and gland head 014 is arranged
In pressure cap 013, and one end of gland head 014 is socketed in pipe nipple 012, and the other end is located at outside pipe nipple 012.Optionally, Glan
First 014 is round tube shape structure, and the other end of gland head 014 is provided with the first annular protrusion to the outer wall protrusion of gland head 014
015, first annular raised 015 is connected to one end of pipe nipple 012, and first annular raised 015 close to pipe nipple 012 one side with it is short
The end face fitting of section 012.Wherein, it first annular raised 015 can be structure as a whole with gland head 014, alternatively, first annular convex
Playing 015 can be detachably connected with gland head 014, and the utility model embodiment does not limit this.It should be noted that Glan
First 014 setting can stop the packing being installed in pipe nipple 012, avoid the process for installing and dismantling pressure cap 013
Packing is caused to rotate in pipe nipple 012.
Optionally, as depicted in figs. 1 and 2, packing bin 011 is provided with far from one end of pipe nipple 012 into packing bin 011
Second annular protrusion 016 of chamber protrusion, the second annular protrusion 016 is for being clamped packing (being not shown in Fig. 1 and Fig. 2).Wherein,
Second annular protrusion 016 can be structure as a whole with packing bin 011, alternatively, the second annular protrusion 016 and packing bin 011 can be with
It is detachably connected, the utility model embodiment does not limit this.
Optionally, as depicted in figs. 1 and 2, pressure cap 013 is tubular structure, is specifically as follows round tube shape structure, pressure cap
013 one end not connecting with pipe nipple 012 is provided with the third annular protrusion 017 to the inner cavity protrusion of pressure cap 013, third convex annular
017 is played for being clamped gland head 014.Wherein, third annular protrusion 017 can be structure as a whole with pressure cap 013, alternatively, third
Annular protrusion 017 can be detachably connected with pressure cap 013, and the utility model embodiment does not limit this.Optionally, pressure cap
Rotating handle 018 is provided on 013 outer wall, rotating handle 018 can be structure as a whole with pressure cap 013, alternatively, rotating handle
018 is detachably connected with pressure cap 013.Wherein, the setting of rotating handle 018 can be in order to the installation and disassembly of pressure cap 013.It needs
It is noted that as depicted in figs. 1 and 2, the axis (being not shown in Fig. 1 and Fig. 2) of pressure cap 013 is conllinear with straight line a.
Optionally, packing bin 011 is threadedly coupled with pipe nipple 012, and pipe nipple 012 is threadedly coupled with pressure cap 013.Fig. 3 is this reality
With a kind of structural schematic diagram for pipe nipple 012 that new embodiment provides, referring to Fig. 1 to Fig. 3, pipe nipple 012 is by the first tube body
0121, the second tube body 0122 and third tube body 0123 are sequentially overlapped the integral structure to be formed, the first tube body 0121, the second tube body
0122 and third tube body 0123 be round tube, and the axis of 0123 three of the first tube body 0121, the second tube body 0122 and third tube body
Line is conllinear, and the internal diameter Dr1 of the first tube body 0121 is greater than the internal diameter Dr2, the internal diameter Dr2 etc. of the second tube body 0122 of the second tube body 0122
It is equal to the outer diameter D R2 of the second tube body 0122, the second pipe in the internal diameter Dr3 of third tube body 0123, the outer diameter D R1 of the first tube body 0121
The outer diameter D R2 of body 0122 is greater than the outer diameter D R3 of third tube body 0123, the internal diameter Dr2 of the second tube body 0122 and the wall of packing bin 011
The sum of thick (Fig. 1 is not marked into Fig. 3) is equal to the internal diameter Dr1 of the first tube body 0121, and the first tube body 0121 is provided with internal screw thread,
One end of packing bin 011 is provided with external screw thread, and the first tube body 0121 is socketed on packing bin 011, and the first tube body 0121 and disk
Root storehouse 011 is threadedly coupled；Third tube body 0123 is provided with external screw thread, and one end of pressure cap 013 is provided with internal screw thread, and 013 set of pressure cap
It connects on third tube body 0123, and pressure cap 013 is threadedly coupled with third tube body 0123.Optionally, the internal diameter of packing bin 011 and
The internal diameter of two tube bodies 0121 is equal.
It should be noted that external screw thread or internal screw thread can also be arranged in one end that packing bin 011 is not connect with pipe nipple 012,
In order to which blowout prevention box is mounted on well head.Illustratively, rubber gate is installed on the oil pipe four-way of well head, it can be by packing bin
011 is threadedly coupled with rubber gate, and blowout prevention box is mounted on well head.
In conclusion blowout prevention box provided by the embodiment of the utility model, since packing bin and pipe nipple are used to install packing additional,
Therefore the packing that can be installed additional in blowout prevention box is more, and the sealing surface of blowout prevention box and polished rod is larger, and polished rod motion process is not easy to grind
Packing is damaged, the sealing surface for helping avoid blowout prevention box and polished rod is impaired, to avoid blowout prevention box oil leak.
Blowout prevention box provided by the embodiment of the utility model can install more packing additional, the sealing surface of blowout prevention box and polished rod compared with
Greatly, guarantee the leakproofness of blowout prevention box and polished rod, and packing is not easy to wear, is able to extend the service life of packing, extends pressure cap
Adjustment period and the replacement cycle of packing reduce inspection and maintenance frequency, and reduction staff's adjustment pressure cap is elastic and replaces
The labor intensity of packing, while being avoided that the problem of packing box oil leak pollutes.
Fig. 4 is the application scenario diagram of blowout prevention box provided by the embodiment of the utility model, and Fig. 5 is the utility model embodiment
The part isometric structural schematic diagram of the application scenarios of the blowout prevention box of offer, referring to fig. 4 and Fig. 5, the blowout prevention box is in assembling, by disk
The one end in root storehouse 011 is threadedly coupled with the first tube body 0121 of pipe nipple 012, then gland head 014 is inserted into the third of pipe nipple 012
Tube body 0123 is located at one end of gland head 014 in pipe nipple 012, and the other end is connected on pipe nipple 012, later by pressure cap 014 with
The third tube body 0123 of pipe nipple 012 is threadedly coupled, and is located at gland head 014 in pressure cap 014, is obtained blowout prevention box.
When in use, blowout prevention box is socketed on polished rod 02 for blowout prevention box, and by the glue of the packing bin of blowout prevention box 011 and well head
Skin gate (being not shown in Fig. 4 and Fig. 5) connection, later, pressure cap 013 is disassembled from pipe nipple 012, then by gland head 014
From pipe nipple 012 take out, successively into packing bin 011 and pipe nipple 012 install additional packing 03, when in packing bin 011 and pipe nipple 012 plus
After filling packing 03, gland head 014 is inserted into the third tube body 0123 of pipe nipple 012, one end of gland head 014 is made to be located at pipe nipple
In 012, the other end is connected on pipe nipple 012, is later threadedly coupled pressure cap 014 with the third tube body 0123 of pipe nipple 012, is made lattice
Blue head 014 is located in pressure cap 014, obtains structure as shown in Figure 4 and Figure 5.Wherein, packing 03 can be colloid annular packing,
After packing bin 011 and pipe nipple 012 is added in packing 03, packing 03 is bonded with polished rod 02, so that blowout prevention box is sealed polished rod 02.
It should be noted that in practical application, it can be only by first tube body of one end of packing bin 011 and pipe nipple 012
0121 is threadedly coupled, and the overall structure that connection is formed is socketed on polished rod 02, then by the rubber lock of packing bin 011 and well head
Door (being not shown in Fig. 4 and Fig. 5) connection, backward packing bin 011 and pipe nipple 012 in installation packing 03, and filling it up with packing
The assembling of gland head 014 and pressure cap 014 and pipe nipple 012 is carried out after 03.
The foregoing is merely the alternative embodiments of the utility model, are not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of blowout prevention box, which is characterized in that the blowout prevention box includes: sequentially connected packing bin, pipe nipple and pressure cap, the disk
Root storehouse and the pipe nipple are tubular structure, the axis collinear of the packing bin, the pipe nipple and the pressure cap three, the disk
Root storehouse and the pipe nipple are used to install packing additional.
2. blowout prevention box according to claim 1, which is characterized in that the blowout prevention box further include: gland head, the gland head
For tubular structure, the gland head is arranged in the pressure cap, and one end of the gland head is socketed in the pipe nipple, another
End is located at outside the pipe nipple.
3. blowout prevention box according to claim 2, which is characterized in that the other end of the gland head is provided with to the Glan
The first annular protrusion of the outer wall protrusion of head, the first annular protrusion are connected to one end of the pipe nipple.
4. blowout prevention box according to claim 3, which is characterized in that the packing bin is provided with far from one end of the pipe nipple
To the second annular protrusion of the inner cavity protrusion of the packing bin, second annular protrusion is for being clamped packing.
5. blowout prevention box according to claim 4, which is characterized in that the pressure cap be tubular structure, the pressure cap not with institute
The one end for stating pipe nipple connection is provided with third annular protrusion to the inner cavity protrusion of the pressure cap, and the third annular protrusion is used for
It is clamped the gland head.
6. blowout prevention box according to claim 5, which is characterized in that be provided with rotating handle on the outer wall of the pressure cap.
7. blowout prevention box according to claim 6, which is characterized in that the first annular protrusion is integrated with the gland head
Structure, second annular protrusion are structure as a whole with the packing bin, and the third annular protrusion is integrated with the pressure cap
Structure.
8. blowout prevention box according to any one of claims 1 to 7, which is characterized in that the packing bin and the short-section thread connect
It connects, the pipe nipple is threadedly coupled with the pressure cap.
9. blowout prevention box according to claim 8, which is characterized in that the pipe nipple is by the first tube body, the second tube body and the
Three tube bodies are sequentially overlapped the integral structure to be formed, the axis of first tube body, second tube body and the third tube body three
Line is conllinear, and the internal diameter of first tube body is greater than the internal diameter of second tube body, and the internal diameter of second tube body is equal to described the
The internal diameter of three tube bodies, the outer diameter of first tube body are equal to the outer diameter of second tube body, and the outer diameter of second tube body is greater than
The outer diameter of the third tube body, the sum of internal diameter and the wall thickness of the packing bin of second tube body are equal to first tube body
Internal diameter,
First tube body is provided with internal screw thread, and one end of the packing bin is provided with external screw thread, and first tube body is socketed in
On the packing bin, and first tube body is threadedly coupled with the packing bin；
The third tube body is provided with external screw thread, and one end of the pressure cap is provided with internal screw thread, and the pressure cap is socketed in described
On three tube bodies, and the pressure cap is threadedly coupled with the third tube body.
10. blowout prevention box according to claim 9, which is characterized in that the internal diameter of the packing bin and second tube body
Internal diameter is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328648.1U CN208966251U (en) | 2018-08-16 | 2018-08-16 | Blowout prevention box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328648.1U CN208966251U (en) | 2018-08-16 | 2018-08-16 | Blowout prevention box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966251U true CN208966251U (en) | 2019-06-11 |
Family
ID=66753318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821328648.1U Active CN208966251U (en) | 2018-08-16 | 2018-08-16 | Blowout prevention box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966251U (en) |
-
2018
- 2018-08-16 CN CN201821328648.1U patent/CN208966251U/en active Active
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