Summary of the invention
Therefore, the invention provides a kind of under high pressure at the lining coupling assembly of pipeline internal fixation one lining.In addition, lining coupling assembly of the present invention can be applicable to the various pipe end structures of present use, and need not any special change.
More specifically, the present invention relates to a kind of liner assembly that is used for two joints between the pipeline section.This liner assembly comprises first ring, second ring, anticorrosion ring, first lining and second lining.First ring has the body member with first end and second end.First end has first flange and second flange that extends thus.First flange and second flange define a space between them.Second ring has the body member with the prolongation of first end and second end.Second end has first flange and second flange that extends thus.First flange and second flange define a space between them.Cooperate between first end that anticorrosion ring is arranged in first ring and second end of second ring and with first end of first ring and second end of second ring.First lining is configured for being fixed in first flange and the space between second flange that is formed at first ring.Second lining is configured for being fixed in first flange and the space between second flange that is formed at second ring.
First flange of first ring can be close to first pipeline section location and be fixed in first pipeline section.In addition, compare with second flange of first ring, first flange of first ring can extend bigger distance from first end of the body member of first ring.First flange of second ring can be close to second pipeline section location and be fixed in second pipeline section, compares with second flange of second ring, and first flange of second ring can extend bigger distance from second end of the body member of the prolongation of second ring.
Anticorrosion ring can comprise the relative sawtooth end with hypotenuse portion, and second end of first ring and first end of second ring can comprise the hypotenuse portion of aiming at, to cooperate with the relative sawtooth end of anticorrosion ring.First end of the hypotenuse portion of anticorrosion ring, second end of first ring and second ring can the oblique 45 in slope.Second end of first ring and first end of second ring can adhesively be attached to the opposite end of anticorrosion ring.
First and second rings can be made by the glass-reinforced epoxy material.Anticorrosion ring can be by having elastic elastic material or any other suitable compressible material to make.The bottom of second flange of first ring can be from the tapered extension of first end of the body member of first ring, and the bottom of second flange of second ring can be from the tapered extension of second end of the body member of the prolongation of second ring.
The invention still further relates to a kind of coupling assembly.This coupling assembly comprises first pipe, second pipe, fixedly connected first pipe and the coupling of second pipe, first ring that is positioned at the first end place of first pipe, second ring, anticorrosion ring, first lining and second lining.First ring comprises the body member with first end and second end.First end has first flange and second flange that extends thus.First flange and second flange define a space between them.Second ring comprises the body member of the prolongation of contiguous coupling location, and has first end and second end.Second end has first flange and second flange that extends to thus in second pipe.First flange and second flange define a space between them.Cooperate between first end that anticorrosion ring is arranged in first ring and second end of second ring and with first end of first ring and second end of second ring.First lining is arranged in first pipe and has and is configured for being fixed on first flange that is formed at first ring and the end in the space between second flange.Second lining is arranged in second pipe and has and is configured for being fixed on first flange that is formed at second ring and the end in the space between second flange.
First flange of first ring can be fixed to first pipe with mortar.Compare with second flange of first ring, first flange of first ring can extend bigger distance from first end of the body member of first ring.First flange of second ring can be fixed to second pipe with mortar.Compare with second flange of second ring, first flange of second ring can extend bigger distance from second end of the body member of the prolongation of second ring.The bottom of second flange of first ring can be from the tapered extension of first end of the body member of first ring.The bottom of second flange of second ring can be from the tapered extension of second end of the body member of the prolongation of second ring.
In addition, the present invention is the method for two pipeline sections of a kind of connection.This method comprises the steps: to provide first pipeline section; Second pipeline section is provided; In first pipeline section, insert first lining; In second pipeline section, insert second lining; With first ring is provided, this first ring comprises the body member with first end and second end.First end has first flange and second flange that extends thus.First flange and second flange define a space between them.Subsequently, be fixed in the space between first flange that is formed at first ring and second flange by end and first ring is arranged to engage with first lining first lining.Then, provide second ring, this second ring comprises the body member of the prolongation with first end and second end.Second end has first flange and second flange that extends thus.First flange and second flange define a space between them.Then, be fixed in the space between first flange that is formed at second ring and second flange by end and second ring is arranged to engage with second lining second lining.The anticorrosion ring of between first end of second end of first ring and second ring, planting, and the coupling of first end of second end that is suitable for admitting therein first pipeline section and second pipeline section is provided.At last, second end that wherein is furnished with first pipeline section of first lining is received in the coupling, so that first pipeline section is engaged regularly with coupling, and first end that will wherein be furnished with second pipeline section of second lining is received in the coupling, so that second pipeline section is engaged regularly with coupling.
Another embodiment of the present invention relates to a kind of liner assembly that is used for two joints between the pipeline section.This liner assembly comprises the two-piece type ring, and this two-piece type ring comprises the outer sleeve with first end and second end of general cylindrical shape and is configured for being positioned at the interior inner sleeve of outer sleeve.Inner sleeve comprises the body member with first end and second end.First end has the flange that extends thus.In the time of in inner sleeve is positioned at outer sleeve, outer sleeve and flange define annular gap between them.Liner assembly also comprises second ring, and this second ring comprises the body member of the prolongation with first end and second end.Second end has first flange and second flange that extends thus.First flange and second flange define a space between them.Between first end that liner assembly also comprises the inner sleeve that is arranged in the two-piece type ring and second end of second ring and the anticorrosion ring that cooperates with second end of first end of the inner sleeve of two-piece type ring and second ring, be configured for being fixed on flange and first lining in the annular gap between the outer sleeve that is formed at inner sleeve and be configured for being fixed on first flange that is formed at second ring and second lining in the space between second flange.
Outer sleeve can be constructed with first end, and first end of this first end than the flange of inner sleeve from the body member of inner sleeve extends bigger distance.First flange of second ring can be positioned to contiguous second pipeline section and be fixed to this second pipeline section.Than second flange of second ring, first flange of second ring can be configured to extend bigger distance from second end of the body member of the prolongation of second ring.Anticorrosion ring can comprise the relative sawtooth end that comprises hypotenuse portion, and second end of the body member of inner sleeve and first end of second ring comprise the hypotenuse portion of aiming at, to cooperate with the relative sawtooth end of anticorrosion ring.
Read following description and claims by the reference accompanying drawing, the operating method of these and other feature of the present invention and specialization, associated structural elements and parts combination and function and manufacturing Economy will become more apparent, institute's drawings attached forms the part of this specification, wherein in each figure, same reference numerals is represented corresponding component.
Embodiment
For following description, term " on ", D score, " right side ", " left side ", " vertically ", " level ", " top ", " end ", " laterally ", " vertically " and derive from term and should relate to the present invention's orientation in the accompanying drawings.It should be understood that the present invention can take various replacement modification, unless it is opposite clearly to have indicated situation.Should also be understood that shown in the accompanying drawing and below the concrete device described in the specification only be exemplary embodiment of the present invention.
The conventional method of connecting tube is utilized the steel thread connector in gas industries, and this coupling is by machining, tapping and be adapted to and be used to hold the insertion lining.The present invention relates in general to a kind of the overall with reference character 1 coupling assembly of representing and the liner assembly 3 that is used for using at coupling assembly 1 of adjacent or relative pipeline section that be used for connecting.Coupling assembly 1 is adapted to the interior lining that is used to connect liner assembly 3, and is As described in detail below.
With reference to Fig. 1 and 2, coupling assembly 1 comprises first pipeline section 5, second pipeline section 7, with the coupling 9 and the liner assembly 3 of general arrangement in the zone that is limited by coupling 9 of first and second pipeline sections, 5,7 interconnection.First pipeline section 5 has second end, 11, the second pipeline sections 7 that are configured for being inserted in the coupling 9 and has first end 13 that is configured for being inserted in the coupling 9.
Liner assembly 3 comprises first lining 15 that is arranged in first pipeline section 5.First lining 15 is arranged in first pipeline section 5 and defines first annular gap 17 with the internal surface of first pipeline section 5.First annular gap 17 is typically filled with plaster or mortar, as known in the art.Use for oil gas, plaster or mortar can be that oil-well cement and oil-well cement additive mix with water to have the mixture of controlled slurry viscosity.Liner assembly 3 also comprises second lining 19 that is arranged in second pipeline section 7, and the internal surface of itself and second pipeline section 7 defines second annular gap 21.Second annular gap 21 is also typically filled with plaster or mortar, as mentioned above.First lining 15 and second lining 19 can be made by the material that for example is the fiber reinforcement thermosetting resin that twines of filament or extrusioning thermoplastic plastic etc.
Second end 11 of first pipeline section 5 and first end 13 of second pipeline section 7 link together by aforesaid coupling 9.Coupling 9 can be the steel thread connector, has the internal thread (not shown) that is arranged on its two ends.Particularly, the internal thread (not shown) can be arranged on first end 23 and second end 25 of coupling 9, is furnished with the unthreaded portion 27 of central authorities between first end 23 and second end 25.The internal thread (not shown) that is positioned at first end 23 of coupling 9 is admitted the outside thread (not shown) of second end 11 that is arranged on first pipeline section 5, and the internal thread (not shown) that is positioned at second end 25 of coupling 9 is admitted the outside thread (not shown) of first end 13 of second pipeline section 7.Coupling 9 changeable shapes and size are to be used for various application.For example, first and second ends 23,25 of link 9 can be taper, further to guarantee the tighter sealing between first and second pipeline sections 5,7 and the coupling 9.
Also continue with reference to Fig. 1 and 2 with reference to Fig. 3, liner assembly 3 comprises first ring 29 that is configured at second end, 11 place's firm engagement, first lining 15 of first pipeline section 5.First ring 29 comprises the body member 31 with first end 33 and second end 35.First end 33 has first flange 37 and second flange 39 that extends thus.First flange 37 and second flange 39 define space 41 between them.First flange 37 is from first end, the 33 extended distance d of body member 31
1, second flange 39 is from first end, the 33 extended distance d of body member 31
2In addition, compare with second flange 39 of first ring 29, first flange 37 extends bigger apart from d from first end 33 of the body member 31 of first ring 29
1The bottom 42 of second flange 39 of first ring 29 forms first end, the 33 tapered extensions from body member 31.First lining 15 is configured for being fixed in first flange 37 and the space 41 between second flange 39 that is formed at first ring 29.
In addition, first flange 37 is extending a little less than the position at the top 43 of body member 31 first end 33 from body member 31, thereby forms step 45.First flange 37 of first ring 29 is positioned to contiguous first pipeline section 5.When suitable location, the step 45 of first ring 29 forms space 47 between first flange 37 and first pipeline section 5.Space 47 can be filled with plaster, so that first ring 29 is fixed to first pipeline section 5.In addition, second end 35 of the body member 31 of first ring 29 is limited with shoulder and comprises hypotenuse portion 49.
First ring 29 can be made by molded fiber-reinforced resin and analog.First ring 29 also useful binders adheres to or is attached to first lining 15, but perhaps in the space 41 of first lining, 15 frictional fit between first flange 37 that is formed at first ring 29 and second flange 39.
Also continue with reference to Fig. 1 and 2 with reference to Fig. 4, liner assembly 3 also comprises second ring 51 that is configured at first end, 13 place's firm engagement, second lining 19 of second pipeline section 7.Second ring 51 has the body member 53 with the prolongation of first end 55 and second end 57.Second end 57 has first flange 59 and second flange 61 that extends thus.First flange 59 and second flange 61 define space 63 between them.First flange 59 is from second end, the 57 extended distance d of the body member 53 of prolongation
3, second flange 61 is from second end, the 57 extended distance d of the body member 53 of prolongation
4In addition, compare with second flange 61 of second ring 51, first flange 59 extends bigger apart from d from second end 57 of the body member 53 of the prolongation of second ring 51
3The bottom 65 of second flange 61 of second ring 51 forms from second end, the 57 tapered extensions of the body member 53 that prolongs.Second lining 19 is configured for being fixed in first flange 59 and the space 63 between second flange 61 that is formed at first ring 51.
In addition, first flange 59 is extending a little less than the position at the top 67 of the body member 53 that prolongs second end 57 from the body member 53 that prolongs, thereby forms step 69.First flange 59 of second ring 51 is positioned to contiguous second pipeline section 7.When suitable location, the step 69 of second ring 51 forms space 71 between first flange 59 and second pipeline section 7.Space 71 can be filled with mortar, so that second ring 51 is fixed to second pipeline section 7.In addition, first end 55 of the body member 53 of the prolongation of second ring 51 is limited with shoulder and comprises hypotenuse portion 73.
Body member 53 than the prolongation of body member 31, the second rings 51 of first ring 29 has longer axial length, and the shape that totally formalizes becomes to install (that is, cooperating) in the unthreaded portion 27 of coupling 9.The body member 53 of the prolongation of second ring 51 can be adjusted the coupling 9 that (that is sizing) becomes to adapt to different length.The body member 53 that prolongs has been guaranteed the internal protection of the unthreaded portion 27 of coupling 9, and protection coupling 9 exempts to be corroded.
Second ring 51 can be made by molded fiber-reinforced resin and analog.Second ring 51 also useful binders adheres to or is attached to second lining 19, but perhaps in the space 63 of second lining, 19 frictional fit between first flange 59 that is formed at second ring 51 and second flange 61.
Between first flange 37 by first lining 15 being fixed on first ring 29 and second flange 39 and second lining 19 is fixed between first flange 59 and second flange 61 of second ring 51, when high pressure or high temperature fluid flow through first and second pipeline sections 5,7, lining 15,19 is prevented from moving, thereby has prevented to be positioned at the plaster between lining 15,19 and the pipeline section 5,7 or the erosion/corrosion of mortar.
Also continue with reference to Fig. 1 and 2 with reference to Fig. 5, liner assembly 3 also comprises the anticorrosion ring 75 that is arranged between first and second rings 29,51.Anticorrosion ring 75 can by glass strengthen PTFE (special teflon, Teflon) and analog make.Anticorrosion ring 75 is limited with relative sawtooth end 77.Relative sawtooth end 77 comprises hypotenuse portion 79.
The relative sawtooth end 77 of anticorrosion ring 75 cooperates with first ring 29 and second ring 51.More specifically, first end 55 of the body member 53 of the prolongation of second end 35 of relative sawtooth end 77 and the body member 31 of first ring 29 and second ring 51 cooperates.The hypotenuse portion 73 of first end 55 of the body member 53 of the hypotenuse portion 49 of second end 35 of the body member 31 of first ring 29 and the prolongation of second ring 51 is adapted to the hypotenuse portion of anticorrosion ring 75 and aims at.The integrity that relative sawtooth end 77 is installed with second end 35 of the body member 31 of first ring 29 and the sealing of having guaranteed liner assembly 3 with cooperating of first end 55 of the body member 53 of the prolongation of second ring 51 on opposite side on a side.
The hypotenuse portion 79 of anticorrosion ring 75 can the oblique 45 in slope.In addition, the hypotenuse portion 73 at first end, 55 places of the body member 53 of the prolongation of the hypotenuse portion 49 at second end, 35 places of the body member 31 of first ring 29 and second ring 51 also can the oblique 45 in slope.When being arranged to an end of contiguous anticorrosion ring 75, the 45 complementation of the 45 of the hypotenuse portion 49 at second end, 35 places of the body member 31 of first ring 29 and the hypotenuse portion 79 of anticorrosion ring 75 is to seal anticorrosion ring 75 and first ring 29 and to be bonded together.Similarly, when being arranged to the opposite end of contiguous anticorrosion ring 75, the 45 complementation of the 45 that is limited by the hypotenuse portion 73 at first end, 55 places of the body member 53 of the prolongation of second ring 51 and the hypotenuse portion 79 of anticorrosion ring 75 is with anticorrosion ring 75 and 61 sealings of second ring and be bonded together.In addition, first end 55 of the body member 53 of the prolongation of second end 35 of the body member 31 of first ring 29 and second ring 51 can adhesively be attached to the opposite end 77 of anticorrosion ring 75.
Although the hypotenuse portion 79 with anticorrosion ring 75 is described as having 45 here, but, this should be interpreted as restriction the present invention, because the hypotenuse portion 79 of anticorrosion ring 75 can have Any shape or size, as long as first ring 29 and second ring 51 have aligning (that is correspondence) hypotenuse portion 49,73 respectively and get final product.
The invention still further relates to the method that connects two pipeline sections.At first, provide first pipe or pipeline section 5 and second pipe or the pipeline section 7.In first pipe 5, insert first lining 15, in second pipe 7, insert second lining 19.By first lining 15 being fixed in the space 41 between first flange 37 that is formed at first ring 29 and second flange 39 and first ring 29 is arranged to engage with first lining, as indicated above.By second lining 19 being fixed in the space 63 between first flange 59 that is formed at second ring 51 and second flange 61 and second ring 51 is arranged to engage with second lining 19, as indicated above.Subsequently, between first end 55 of the body member 53 of the prolongation of second end 35 of the body member 31 of first ring 29 and second ring 51, insert anticorrosion ring 75 in described mode above.The relative sawtooth end 77 of anticorrosion ring 75 cooperates with first end 55 of the body member 53 of the prolongation of second end 35 of the body member 31 of first ring 29 and second ring 51 respectively.First end 55 of the body member 53 of second end 35 of the body member 31 of first ring 29 and the prolongation of second ring 51 is limited with corresponding alignment shape, to cooperate with the relative sawtooth end 77 of anticorrosion ring 75.
This method also comprises the step of outside coupling 9 lock seaming of extending with first and second pipeline sections 5,7 and between first and second pipeline sections 5,7.Coupling 9 is adapted to the end 11,13 of admitting first and second pipeline sections 5,7.By the outside thread (not shown) of first pipeline section 5 and the internal thread (not shown) of coupling 9 are meshed and first pipeline section 5 are received in the coupling 9.First pipeline section 5 has first lining, 15, the first rings 29 that are arranged in wherein and is fixed to first lining 15.
Typically, in for example being installed to oil well or gas well before, coupling 9 engages with second end 11 of first pipeline section 5 that comprises first lining 15 and first ring 29.Then anticorrosion ring 75 is installed in the coupling 9, makes hypotenuse portion 79 engage with the hypotenuse portion 49 at second end, 35 places of the body member 31 of first ring 29.In case anticorrosion ring 75 is installed in the coupling 9,, make that the hypotenuse portion 77 on the opposite end of anticorrosion ring 75 engages with the hypotenuse portion 73 of first end 55 of second ring 51 just with second pipeline section, 7 scyewed joint or otherwise navigate in the coupling 9.
Then when second pipeline section 7 is rotated and engages with coupling 9, anticorrosion ring 75 is compressed between first end 55 of the body member 53 of the prolongation of second end 35 of the body member 31 of first ring 29 and second ring 51, thereby with first and second pipeline sections, 5,7 lock seaming together.The unthreaded portion 27 of coupling 9 acts as and receives concentrated stress, is compressed between first ring 29 and second ring 51 to allow anticorrosion ring 75.
Compressed anticorrosion ring 75 acts as and prevents to cause coupling 9 because internal corrosion was lost efficacy by the fluid that engages pipeline section 5,7. Lining 15,19 acts as energizes for anticorrosion ring 75 in the joint between first and second pipeline sections 5,7 or compresses this anticorrosion ring, not only usually to provide continuous antisepsis in lined pipe or sleeve joint but also by coupling 9.When pipe row increase new pipe, anticorrosion ring 75 experience between first end 55 of second end 35 of the body member 31 of first ring 29 and the body member 53 of the prolongation of second ring 51 is further compressed.
With reference to Fig. 6 and 7, another embodiment of coupling assembly replaces first ring 29 with the two-piece type ring, and is as mentioned below.According to another embodiment of the present invention coupling assembly 1 ' comprise first pipeline section 5 ', second pipeline section 7 ', with the coupling 9 ' and the liner assembly 3 ' of general arrangement in the zone that limits by coupling 9 ' of first and second pipeline sections 5 ', 7 ' interconnection.First pipeline section 5 ' has second end, 11 ', the second pipeline section 7 ' that is configured for being inserted in the coupling 9 ' and has first end 13 ' that is configured for being inserted in the coupling 9 '.
Liner assembly 3 ' comprises first lining 15 ' that is arranged in first pipeline section 5 '.First lining 15 ' is arranged in first pipeline section 5 ', and defines first annular gap 17 ' with the internal surface of first pipeline section 5 '.First annular gap 17 ' is typically filled with plaster or mortar, as known in the art.Use for oil gas, plaster or mortar can be that oil-well cement and oil-well cement additive mix with water to have the mixture of controlled slurry viscosity.Liner assembly 3 ' also comprises second lining 19 ' that is arranged in second pipeline section 7 ', and the internal surface of itself and second pipeline section 7 ' defines second annular gap 21 '.Second annular gap 21 ' is also typically filled with plaster or mortar, as mentioned above.First lining 15 ' and second lining 19 ' can be by for example being that materials such as the fiber reinforcement thermosetting resin that twines of filament or extrusioning thermoplastic plastic are made.
As mentioned above, first end 13 ' of second end 11 ' of first pipeline section 5 ' and second pipeline section 7 ' links together by coupling 9 '.Coupling 9 ' can be the steel thread connector, has the internal thread (not shown) that is arranged on its two ends.Particularly, the internal thread (not shown) can be arranged on first end 23 ' and second end 25 ' of coupling 9 ', is furnished with the unthreaded portion 27 ' of central authorities between first end 23 ' and second end 25 '.The internal thread (not shown) that is positioned at first end 23 ' of coupling 9 ' is admitted the outside thread (not shown) of second end 11 ' that is arranged on first pipeline section 5 ', and the internal thread (not shown) that is positioned at second end 25 ' of coupling 9 ' is admitted the outside thread (not shown) of first end 13 ' of second pipeline section 7 '.Coupling 9 ' changeable shape and size are to be used for various application.For example, first and second ends 23 ', 25 ' of link 9 ' can be taper, with further guarantee first and second pipeline sections 5 ', 7 ' and coupling 9 ' between tighter sealing.
Also continue with reference to Fig. 1 and 2 with reference to Fig. 8 and 9, liner assembly 3 ' comprises the two-piece type ring 81 that is configured for locating at second end 11 ' of first pipeline section 5 ' lock seaming first lining 15 '.Two-piece type ring 81 comprises outer sleeve 83 and inner sleeve 85.Outer sleeve 83 and inner sleeve 85 boths have the general cylindrical shape shape, and outer sleeve 83 has the diameter bigger than inner sleeve 85.As described in detail below, outer sleeve 83 is positioned at second end 11 ' of first pipeline section 5 '.Then, inner sleeve 85 is positioned in the outer sleeve 83, thereby forms annular gap 87 between them.Annular gap 87 is configured to hold therein first lining 15 '.
Outer sleeve 83 has the aforesaid general cylindrical shape shape with first end 89 and second end 91.First end 89 of outer sleeve 83 is configured for being received in second end 11 ' of first pipeline section 5 ', and second end 91 of outer sleeve 83 is adapted to admits inner sleeve 85 therein.
Inner sleeve 85 comprises the body member 93 with first end 95 and second end 97.First end 95 has the flange 99 that extends thus.Flange 99 is from first end, the 95 extended distance d of body member 93
3The bottom 101 of the flange 99 of inner sleeve 85 forms first end, the 95 tapered extensions from body member 93.Second end 97 of the body member 93 of inner sleeve 85 is limited with shoulder and comprises hypotenuse portion 102.
When inner sleeve 85 was positioned in the outer sleeve 83, second end 91 of outer sleeve 83 was at first end 95 a little less than the position butt body member 93 at the top 103 of body member 93, thereby formed step 105.In addition, outer sleeve 83 is from first end, the 95 extended distance d of body member 93
4Than the flange 99 of inner sleeve 85, outer sleeve 83 extends bigger apart from d from first end 95 of the body member 93 of inner sleeve 85
4
As mentioned above, first end 89 of outer sleeve 83 is configured for being received in second end 11 ' of first pipeline section 5 ', thereby the outer diameter of outer sleeve 83 is positioned to contiguous first pipeline section 5.When appropriate location, step 105 forms space 107 between the outer sleeve 83 and first pipeline section 5 '.Space 107 can be filled with plaster, so that outer sleeve 83 is fixed to first pipeline section 5 '.
Outer sleeve 83 and inner sleeve 85 can be made by molded fiber-reinforced resin and analog.Outer sleeve 83 and inner sleeve 85 also useful binders adheres to or is attached to first lining 15 ', but perhaps in the annular gap 87 of first lining, the 15 ' frictional fit between the flange 99 that is formed at outer sleeve 83 and inner sleeve 85.
Liner assembly 3 ' also comprises second ring 51 ' that is configured for locating at first end 13 ' of second pipeline section 7 ' lock seaming second lining 19 '.Second ring 51 ' is with above identical about described second ring 51 of first embodiment of the invention.Also be provided with the anticorrosion ring 75 ' that is arranged between the inner sleeve 85 and second ring 51 '.Anticorrosion ring 75 ' is with above identical about the described anticorrosion ring of first embodiment of the invention 75.
Liner assembly 3 ' according to second embodiment of the invention is installed in the pipeline as described below.At first, second ring 51 ' is immersed in the acetone to guarantee that it is fully cleaned.In addition, clean the inner diameter of second lining 19 ' with acetone.Next, after acetone evaporates fully, in first flange of second ring 51 ' and the space between second flange, apply tackiness agent.Then, utilize clockwise rotation that second lining 19 ' is positioned in first flange and the space between second flange of second ring 51 '.Remove unnecessary tackiness agent from second lining 19 ' and second ring 51 ' then, and made adhesive at least 60 minutes.
Next adjustment/Fixing plug (not shown) is installed in first end of second ring 51 '.Lining is inserted in first end 23 ' of coupling 9 ' then, and insertion has been fixed in second pipeline section 7 ' of coupling 9 ' then, thereby second ring suitably is positioned in the coupling 9 ', as shown in Figure 7.Cover second lining, 19 ' location pump cover then at the second end place of second pipeline section 7 '.Then by pump cover pumping plaster to fill second annular gap 21 '.Plaster was solidified about 2-3 hour.
Be positioned at first lining 15 ' in first pipeline section 5 ' subsequently and use pump cover that plaster is pumped in first annular gap 17 '.The outer sleeve 83 of two-piece type ring 81 is positioned at the outer diameter top of first lining 15 ', uses the sleeve tool (not shown) to be located in second end 11 ' of first pipeline section 5 ' then.In case plaster solidified minimum about 8 hours, second end 11 ' of then preparing wherein to be positioned with first pipeline section 5 ' of outer sleeve 83 is used for the installation of inner sleeve 85.After pre-shaping step is finished, clean the inner diameter of first lining 15 ' and inner sleeve 85 with acetone.Outer diameter to inner sleeve 85 applies tackiness agent then, and inner sleeve 85 is positioned in second end 11 ' of first pipeline section 5 '.Remove whole excess adhesives from first lining 15 ' and inner sleeve 85, make adhesive.In case adhesive, then second end 11 ' with first pipeline section 5 ' is positioned in first end 23 ' of coupling 9 '.
Although describe the present invention in detail based on the current the most practical and preferred embodiment that are considered to for illustrative purposes, it should be understood that this detailed description is only for described purpose, the present invention is not limited to described embodiment, on the contrary, the invention is intended to contain modification and equivalent arrangements.Should be understood that in addition one or more features that the present invention imagines any embodiment within the bounds of possibility all can with one or more characteristics combination of other embodiment arbitrarily.